Link to Appendix 3 Link to Section 2 8. Management recommendations: clean intermittent self catheterisation (CISC) Section 8 has been developed using non-systematic, narrative methodology. 8.1 Overview The main aims of clean intermittent self catheterisation (CISC) are to empty the bladder and prevent bladder over distension in order to avoid complications and to improve urological conditions (Cottenden, Bliss, Fader et al., 2005). Infrequent emptying leads to excessive bladder volumes, with long periods of urine stagnation. As residual urine plays a role in infection, attention must be made to complete emptying of the bladder (Cottenden, Bliss, Fader et al., 2005). It is generally recommended that total emptying be performed at least four times per day. Catheterising more than six times in 24 hours is inconvenient and should be discouraged. If catheterising six times in 24 hours still produces any single volume over 500mL, fluid intake should be investigated. Reducing fluid in the evening will minimise excessive urine volumes during the night (Heard, 2005). When low urine volumes are produced (<1200mL per day), clients have been found to be less inclined to empty as frequently as recommended, causing stagnation and bladder distension (Heard, 2005). Clients should be advised to drink 1.5 to 2 litres of water daily (Sullivan, 2006) unless otherwise indicated. If persistent difficulty with catheter insertion occurs, the client should be referred on for urological evaluation. In the short term, observe technique and help correct faulty insertion techniques. Catheters with alternative tip designs, (eg. Coudé, Tiemann), may be useful for difficult insertions (Heard, 2005). 8.2 Definition of clean intermittent self catheterisation CISC is a clean, non-sterile, technique that can be used independently by the individual, a carer or clinician to facilitate emptying the bladder (Williams, 2005). 8.3 Indications for clean intermittent self catheterisation CISC should be used where there is a clinical indication to empty the bladder and the client is unable to do so (Hirst, 2006). The June 2004 National Health Service Quality Improvement Scotland Best Practice Statement on Urinary Catheterisation and Catheter Care states that “intermittent catheterisation is the preferred alternative to indwelling catheterisation for individuals in whom bladder emptying is incomplete, providing this is safe and acceptable to them” (NHSQIS, 2004). It has fewer complications and gives a better outcome (Cottenden, Bliss, Fader et al., 2005). CISC may be used short term or long term in a variety of circumstances, including: • Neuropathic disorders where the bladder loses the ability to empty completely, providing that bladder capacity is sufficient, bladder pressure can be kept low and urethral resistance is high enough to maintain continence (Cottenden, Bliss, Fader et al., 2005). • Where there is an obstruction to the outflow of urine and the bladder can’t empty itself (Hirst, 2006). • Post operative urinary retention (Williams, 2005). • Following surgery for incontinence (colposuspension) if obstruction occurs in short or long term (Getliffe & Dolman, 2003). • When a continent urinary diversion such as Mitrofanoff diversion is performed to create a continent catheterisable channel into the bladder from the abdominal surface (Getliffe & Dolman, 2007). • Following bladder substitution or augmentation (Sullivan, 2006). 54 8. Management recommendations: clean intermittent self catheterisation (CISC) 8.4 Client selection criteria Physiological requirements to be met include: • Adequate bladder capacity to enable sufficient urine storage so that catheterisation can be restricted to only every four hours (Hirst, 2006) • Adequate sphincter mechanism (Sullivan, 2006). The person undertaking CISC must have good manual dexterity, mobility, motivation, and the ability to learn and carry out the procedure correctly (NHSQIS, 2004). As a general rule, a person who is able to write and feed him/herself has the manual dexterity to self catheterise. The presence of a disability does not necessarily preclude CISC. Indeed, success in the technique has been achieved by people with blindness, lack of perineal sensation, tremor, mental disability, and paraplegia (Getliffe & Dolman, 2007). If a person has problems with balance or hip abduction, help from a physiotherapist or other health professional is recommended (Sullivan, 2006). 8.5 Advantages and disadvantages of clean intermittent self catheterisation Advantages of CISC include the following: • Urinary tract complications are reduced by improving bladder drainage • Continence should be achieved unless co-existing detrusor overactivity is present • Improved quality of life and empowerment through greater independence and personal control over bladder function • Greater freedom for expression of sexuality as compared with use of an indwelling catheter • Reduced burden on hospital and community resources, especially cost factors • Reduced common indwelling catheter associated problems, including urethral trauma, UTI and encrustation • Improved sleep for those with nocturia and nocturnal enuresis (Getliffe & Dolman, 2007; Shaw, Logan, Webber et al., 2008; Sullivan, 2006). Disadvantages of clean intermittent self catheterisation have been reported to include: • Difficulty finding hygienic facilities and privacy away from the home environment • The time involved in the process • Increased risk of urinary tract infections • Shorter sleep due to client staying up late for final catheterisation, and rising early for first catheterisation in the morning • Perceived stigma and embarrassment • Fear of pain/discomfort in the early phase • Physical and technical difficulties • Disposal issues (Shaw, Logan, Webber et al., 2008). 8.6 Complications of clean intermittent self catheterisation As with indwelling catheterisation, some complications may occur when using intermittent catheters (Cottenden, Bliss, Fader et al., 2005). These include the following: • Urinary tract infections (UTI) If catheterisation is begun by clients with recurrent or chronic UTI and urinary retention, the incidence of infection decreases and some patients may become totally free of infection. If symptomatic infections occur, improper CISC technique often can be identified as the cause. Recurrent infection persists if the primary cause is not addressed. 8. Management recommendations: clean intermittent self catheterisation (CISC) 55 • Other complications Urethral bleeding may be seen in clients new to CISC. Trauma of the urethra may very rarely cause false passage and meatal stenosis in men. The incidence of urethral strictures increases with the number of years of CISC. Forceful manipulation during catheter insertion and significant bleeding are important contributing factors for the development of urethral strictures in clients on CISC (Cottenden, Bliss, Fader et al., 2005) Rare complications from CISC include bladder calculi caused by introduction of pubic hair, loss of the catheter in the bladder, bladder perforation and bladder necrosis (Cottenden, Bliss, Fader et al., 2005). Clinical practice feedback indicates excessive bladder volumes (>500mL at each CISC) may also be a complication (Sullivan, 2006). 8.7 Managing and treating complications Link to Section 14.6 For clients using CISC, there are inconsistent findings regarding the effect of antibiotic prophylaxis on symptomatic UTI, and there is only limited evidence that receiving antibiotics reduces the rate of bacteriuria (asymptomatic and symptomatic) (Niel-Weise & van den Broek, 2005). While there is weak evidence that prophylactic antibiotics are better in terms of fewer symptomatic bacteriurias (Niel-Weise & van den Broek, 2005), there is usually no place for prophylactic antibiotics or treatment of the asymptomatic UTI (Hirst, 2006). There is, however, often a client expectation that an antimicrobial response is required, despite scant evidence in some cases to support such treatment (Brown & Nay, 2006). The use of prophylactic antibiotics either orally or by installation poses a significant risk for the development of resistance to antibiotics. The risk of side effects from antibiotics, the expense, and the risk to other clients from cross-infection with resistant organisms are strong arguments against prophylactic antibacterials. The need for alternatives to broad spectrum antibiotic treatment should encourage further investigation of options such as ingesting large amounts of fluid to flush out harmful bacteria (Brown & Nay, 2006). Link to Section 14.6 Ascorbic acid has been found to be useful only when used together with other antibacterial drugs (Cottenden, Bliss, Fader et al., 2005). Cranberry juice may inhibit Escherichia Coli from attaching to the bladder wall; however the juice may have little value in the presence of other bacteria (Brown & Nay, 2006). There is inconclusive evidence about the role cranberry juice or tablets play in preventing urinary tract infections (Cottenden, Bliss, Fader et al., 2005) and until the evidence for using cranberry juice is stronger, it should, at the very least, be used with caution. An awareness of its potential for neutral or even adverse effects needs to be brought to the attention of all health care workers (Brown & Nay, 2006). Urethral strictures occur infrequently and can be avoided by gentle introduction of a well lubricated or hydrophilic catheter (Cottenden, Bliss, Fader et al., 2005). Point of Interest Urethral trauma with false passages has been treated with six weeks of indwelling catheterisation and five days of antibiotics. The false passages disappeared and CISC was restarted. In a small study of only six people, urethral strictures were effectively treated with urethral dilatation in four cases, while two were treated with optical internal urethrotomy, followed by urethral stenting for two weeks (cited in Cottenden et al, 2005). 56 8. Management recommendations: clean intermittent self catheterisation (CISC) 8.8 Catheters - properties A catheter without a retention balloon is used for intermittent catheterisation (AUNS, 2006; Getliffe & Dolman, 2007; Sullivan, 2006). The catheters come in different lengths for men (approximately 40cm long) and women (approximately 22cm long). To aid insertion, intermittent catheters are more rigid than indwelling ones. The longer length male catheters are made from PVC with variable rigidity (Sullivan, 2006), while the majority of female catheters have the same degree of rigidity. Some women, particularly those in wheelchairs, may prefer to use the longer male catheter (Sullivan, 2006). The catheter has an eyelet on either side of the tip, and a funnel at the other end, which may help people with poor eyesight to distinguish between the two ends. The funnels are colour coded to indicate the size of the catheter. 8.8.1 Catheters - size The correct catheter diameter is the smallest size capable of providing adequate drainage. Too large a diameter can cause urethral irritation and subsequent damage. The size of the catheter can be determined by looking at the size of external meatus (Sullivan, 2006). The most common sizes are 10–12 Fg/Ch for women and 12-14 Fg/Ch for most males, with 1Fg/Ch equalling 1/3 mm (AUNS, 2006). The size of the catheter also influences how fast the bladder is drained. A smaller size catheter may be contraindicated for clients who are unwilling to spend sufficient time catheterizing, resulting in a larger post void residual volume (Hirst, 2006). 8.8.2 Catheters - lubricant The catheters used for intermittent catheterisation are either single-use pre-lubricated catheters or polyvinyl chloride (PVC) catheters, which can be used with a water-based lubricant for men where needed (NHSQIS, 2004). Petroleum jelly is not suitable for catheter insertion (Sullivan, 2006). Hydrophilic catheters have been found to be easier to use and better tolerated by people using CISC who have had difficulties with conventional catheters (Cottenden, Bliss, Fader et al., 2005). When immersed in water, the water molecules bind to the surface so no additional lubricant is necessary. Hydrophilic catheters are more expensive than some PVC catheters and are single use only products (Sullivan, 2006). The surface of the catheter is claimed to be an important factor with less stricture development when hydrophilic catheters are used, however results are not conclusive (Cottenden, Bliss, Fader et al., 2005). While overseas research indicates that local anaesthetic gel can be inserted 5-10 minutes before inserting the catheter (Cottenden, Bliss, Fader et al., 2005), other evidence suggests that anaesthetic gel is ineffective and is rarely used in Queensland (Hirst, 2006). 8.9 Valsalva and Credé manoeuvres Adequate voiding can be attained by employing Valsalva and gentle Credé manoeuvre at the conclusion of catheterisation before the catheter is removed (Heard, 2005). These techniques can cause irreversible damage to the upper urinary tract if used as a primary approach to bladder emptying, or if undertaken without the catheter in place (Hirst, 2006). Therefore, discussion with the treating general medical practitioner and/or medical specialist is necessary before recommending either practice to an individual client. The Valsalva manoeuvre (inhaling deeply and then exhaling forcefully against a closed glottis) greatly increases intra-abdominal pressure, and may enable bladder emptying by straining. In some people it also may trigger a bladder contraction. As this manoeuvre increases intracranial pressure, it only has a place at the end of catheterisation while the catheter is still in place (Hirst, 2006). 8. Management recommendations: clean intermittent self catheterisation (CISC) 57 The Credé manoeuvre, or manual expression, involves applying considerable pressure, usually with the ball of the hand, over the bladder. It assists in emptying the bladder in much the same way as use of the Valsalva technique, by raising bladder pressure or triggering a bladder contraction. These manoeuvres may be used in conjunction with the ‘double voiding’ technique, or voiding again to ensure emptying of the bladder. 8.10 Education for use of clean intermittent self catheterisation CISC will not be successful without the client’s full cooperation, and cannot be started unless the client is willing (Sullivan, 2006). Education is very important. Clients and caregivers must understand what is wrong with the bladder/sphincter, what the cause is and why CISC is proposed for treatment. They need to learn how to catheterise correctly (Cottenden, Bliss, Fader et al., 2005). Good Practice Point Clean intermittent self catheterisation Key points to cover in client education (Getliffe & Dolman, 2003; Sullivan, 2006) • Acknowledge any anxiety before starting to teach the technique. • Discuss the client’s bladder dysfunction and reasons for CISC. • Discuss the technique, and issues such as how long the client will need to catheterise, any long-term effects, and the possibility of causing injury to oneself. Acknowledge any embarrassment at touching the genitals. Discuss personal anatomy and • identification of urethral orifice. • Be positive, optimistic, and patient, and provide encouragement at every step. • Discuss alternatives to CISC, such as voiding techniques, IDC, surgery or drugs, continuing voiding difficulties or overflow incontinence. Indicate the advantages and disadvantages of each option. Discuss the possibility of initial discomfort. Taking urinary alkalinisation tablets (eg. • sodium citrotartrate) and increasing water intake may help. Identify what to do if there is an infection, and who to contact if there are any problems. • Discuss hygiene. • Provide dietary advice for avoidance of constipation. • Check manufacturer’s instructions for use. • Discuss storage of new catheters including : - Lie catheters flat, preferably in manufacturer’s box, away from heat or sunlight - Do not bend - Do not group with rubber bands - Check the expiry date before use. 8.11 Frequency of clean intermittent self catheterisation Regular, timely catheterisation prevents over-distension of the bladder, avoids incontinence whenever possible and helps to reduce infection (NHSQIS, 2004). One study found a five-fold increase in infection when CISC was done three times a day compared to six times a day (Cottenden, Bliss, Fader et al., 2005). Frequency varies with individual needs and depends on the reasons for CISC. It is generally not necessary more than four hourly during the day – greater frequency will significantly impact on the individual’s social freedom (Hirst, 2006). Those who are in complete retention may need to catheterise five to six times a day. One author (Alderman, 1988) suggests the guideline of voided urinary volume plus residual urine should be no more than 400 -500mL (Getliffe & Dolman, 2007). 58 8. Management recommendations: clean intermittent self catheterisation (CISC) Where inefficient voiding leads to a gradual increase in post-void volume during the day, CISC may be needed only once a day or every couple of days. The client may choose to perform CISC before some activity that may limit access to toilet, or before sexual activity. Sleep should be as undisturbed as possible (Getliffe & Dolman, 2007), and modifying timing of fluid intake and/or use of night-time Desmopressin (DDAVP) may assist in achieving this (Fonda, DuBeau, Harari et al., 2005; Heard, 2005). However, the risks of this medication, including the reduced frequency of catheterisation, needs to be considered. Link to Section 14.8 8.12 Catheter cleaning In Australia, there are strict rules from the Therapeutics Goods Act 1989 regarding use of products in accordance with the product information. Any health professional who provides advice contrary to the manufacturer’s single use labelling may be professionally liable for any harm to the client as a result of the advice given with respect to cleaning and reuse. In a case of negligence, the health professional may be required to provide the evidence on which his/her recommendations for cleaning were based (TGA, 2006). In Australia, only one manufacturer claims to have a catheter for repeat use. All catheters should be used as per the manufacturer’s information. Point of Interest A Cochrane review found no convincing evidence that any specific technique (sterile or clean), catheter type (coated or uncoated), method (single use or multiple use), person (self or other) or strategy is better than any other for all clinical settings. This reflects a lack of reliable evidence rather than evidence of no difference. Thus, clinicians must base decisions about which technique and type of catheter to use on clinical judgement, in conjunction with clients and medical practitioners. Differential costs of catheters/techniques may also inform decision making (Moore, Fader & Getliffe, 2007). 8.13 Contraindications for clean intermittent self catheterisation Use of CISC may be contraindicated in the following circumstances (Cottenden, Bliss, Fader et al., 2005): • Spasticity interfering with catheterisation • Incontinence despite anticholinergic agents • Unhygienic environment prohibiting clean procedure • Limited dexterity • Poor technique. Good Practice Point • • • • • CISC is the first choice of treatment for those with an inability to empty the bladder adequately and safely. Proper education and teaching are necessary to permit a good outcome (Cottenden, Bliss, Fader et al., 2005). To prevent and reduce complications, a non-traumatising technique with adequate frequency of catheterisation and complete emptying should be strictly performed (Cottenden, Bliss, Fader et al., 2005). Minimal requirements for regular follow-up are history taking, physical examination, imaging, laboratory results and urodynamics tests, for early detection of risk factors and complications. Long-term results, cost and quality of life need to be further documented (Cottenden, Bliss, Fader et al., 2005). 8. Management recommendations: clean intermittent self catheterisation (CISC) Link to Appendix 3 59 9. Management recommendations: indwelling catheterisation - urethral and suprapubic Link to Section 2 Section 9 has been developed using non-systematic, narrative methodology. 9.1 Indwelling catheters Indwelling urinary catheters are generally fed into the bladder via the urethra or, in the case of suprapubic, via the anterior abdominal wall. The term ‘indwelling’ implies that the catheter will remain in position for a defined period and that a balloon catheter will be used to anchor the catheter in the bladder (Oliver, 2006). Indwelling urinary catheters (urethral and suprapubic) can provide effective bladder management for either short (generally considered up to 14 days) or long periods. Indications for long term use of indwelling catheters include bladder outlet obstruction, chronic urinary retention, or restricted movements, eg. paralysis or coma (Cottenden, Bliss, Fader et al., 2005). There are potential complications associated with long-term indwelling catheters, including urinary tract infection, bacteraemia, tissue trauma, bladder spasms, calculi and encrustation thereby necessitating effective care and monitoring within the community setting. The decision to manage bladder dysfunction by long term catheterisation should consider the quality of life and benefits against the potential risks and complications. Long term catheterisation may be the preferred management strategy for people with intractable urinary incontinence as a means of promoting quality of life (Cottenden, Bliss, Fader et al., 2005), but the probability of a catheter acquired urinary tract infection must be considered. Good hand washing is essential when providing catheter care, and the correct technique (use running water, wet hands, soap up, rinse off soap, and dry hands thoroughly with clean towel or air drier) must be followed. Point of Interest Catheter materials Silicone elastomer coated latex, hydrophilic polymer coated latex, and all silicone catheters cause minimal friction and tissue reaction, and are therefore the catheters of choice for longterm use. Hydrogels absorb aqueous fluids to produce a soft slippery surface that reduces trauma on insertion or during withdrawal of the catheter. Silicone can allow slow diffusion of water, which could lead to deflation of the balloon and the catheter falling out. Frequency of changing the catheter depends on local catheter policy and manufacturer’s guidelines, and may be up to 12 weeks if problem-free. Silver coating of the exterior and interior of catheters has been developed to reduce the risk of bacterial infections. Silver ions are bactericidal and non-toxic to humans. The silver may be present as a silver alloy or as silver oxide, with the silver alloy being superior in protecting against bacteriuria (Cottenden, Bliss, Fader et al., 2005). The internal diameter of a catheter varies from brand to brand, depending on the manufacturing method. The urinary flow rate therefore depends on the internal diameter, but 12-16 Fg/Ch catheters are adequate to drain normal quantities of urine, including larger volumes produced by diuresis. Larger sizes are associated with increased bladder irritability and spasms. Small balloon sizes are recommended for all patients (10mL for adults) for reasons of comfort, reduced irritation and spasm causing possible expulsion of the inflated balloon. 9.1.1 Indwelling suprapubic catheters (SPC) The suprapubic catheter is inserted into the bladder via a surgical incision into the anterior 60 9. Management recommendations: in-dwelling catheterisation - urethral and suprapubic abdominal wall (Cottenden, Bliss, Fader et al., 2005). The catheter is generally held in place by an inflated balloon. The placement of the SPC is a relatively minor procedure however there remains the remote possibility of damage to other abdominal structures during the course of placement (Oliver, 2006). Indwelling suprapubic catheterisation may offer advantages over indwelling urethral catheterisation for the following reasons (Cottenden, Bliss, Fader et al., 2005): • Minimised risk of urethral trauma during insertion and withdrawal • Minimised risk of urethral damage and necrosis caused by the weight of poorly supported urine collection bags, expulsion of the catheter, or sitting on the catheter (which is a particular problem for women using wheelchairs) • Ease of catheter access for those with reduced mobility or who use a wheelchair, have restricted hip mobility or experience urethral pain • Less impact of indwelling catheter on sexuality and sexual function, although the impact of altered body image must be considered • Avoidance of urethritis, epididymitis or epididymo-orchitis and prostatitis in elderly men • Management of urinary retention or voiding problems caused by prostatic obstruction or urethral stricture • Following urethral or pelvic trauma. The client or carer may regard the suprapubic catheter as more invasive than regular indwelling catheter. The continence clinician may need to reinforce the advantages listed above, particularly those of reduced infection, greater comfort and less restriction on sexual activities (Oliver, 2006). Suprapubic catheter (SPC) insertion is generally contraindicated in people with hematuria of unknown origin, bladder tumour, or small contracted bladders resulting from free drainage or long term urethral catheterisation. For obese or immobile people, where the traditional stoma site may become concealed by an apron of excess anterior abdominal wall fatty tissue, the catheter should be inserted through the apron itself, not in it’s crease (Hirst, 2006). Although the neurogenic bladder is not covered within the scope of this guideline, it is important to note that the use of SPC is controversial in this area, with some reports showing accelerated renal deterioration in people with a spinal injury, and the risk of autonomic dysreflexia at catheter change. However, there is a high level of client satisfaction with this procedure. Not all urethral catheters are licensed for suprapubic use. Short-term catheters may be plastic, but all-silicone or coated latex catheters are the best materials for long-term suprapubic catheterisation (Cottenden, Bliss, Fader et al., 2005). There is limited published evidence regarding frequency of catheter change, with reports varying widely from monthly to quarterly if the catheter is causing no problems (Cottenden, Bliss, Fader et al., 2005). When changing suprapubic catheters, the new one should be inserted as soon as possible after the removal of the old one, as a delay of only a few minutes can result in partial obliteration of the tract. It is important that the continence clinician discusses with the client, family and carer what happens if the SPC falls out at home. In practice, the carer may be given a catheter with the advice to replace such a catheter loss immediately and thereby preserve the tract (Hirst, 2006). Care must be taken to avoid inserting the catheter too far through the bladder and into the urethra; observing the length and angle of protrusion of the catheter prior to catheter change can help with correct positioning of the new catheter. Some people, particularly women, may have continued urethral leakage with SPC, and therefore may require closure of the urethra (Cottenden, Bliss, Fader et al., 2005). 9. Management recommendations: in-dwelling catheterisation - urethral and suprapubic 61 9.2 Complications of long term indwelling catheters Effective care and monitoring within the community setting are key factors in preventing the risks and complications associated with long term catheterisation. Primary preventative measures may include ongoing assessment and evaluation of catheter management and drainage system, maintenance of adequate hydration, prevention of constipation, and appropriate cleansing. Complications which may occur include catheter associated infection, tissue trauma, catheter encrustation leading to blockage, formation of calculi, histological changes, and an increased risk of bladder cancer after 5-10 years. Catheter encrustation is a common feature affecting up to 50% of all long-term indwelling catheter users. Encrustation can occur without any infection present, and may be influenced by catheter surface properties. Heavy encrustation on the catheter tip and balloon can cause painful tissue trauma on catheter removal. The encrustation is a combination of calcium phosphates and magnesium ammonium phosphate, and is dependent on the acidity of the urine. Women with reduced mobility together with high urinary pH and ammonia concentrates are also prone to encrustation (Getliffe & Fader, 2007). Catheter complications such as blockage and encrustation are best managed by early intervention and preventative care including monitoring of urine pH, examination of the catheter for signs of encrustation, replacement of the catheter if necessary, and ensuring adequate fixation of the catheter and drainage system to prevent trauma and facilitate drainage. Problems need to be identified early, acted upon and appropriately documented. If a client is susceptible to recurrent catheter encrustation, aim for planned care not crisis care. Monitor the life of the catheter so a pattern of blockage can be established, and recatheterisaton can be implemented before the problem develops (Getliffe & Dolman, 2007). Due to lack of evidence from randomised controlled trials, clear recommendations for management and treatment of encrustation in clinical practice are limited, but some strategies include oral cranberry juice/capsules, increasing fluid intake and taking urease inhibitors (Cottenden, Bliss, Fader et al., 2005). Bladder irrigation is not the preferred intervention within the community setting and should not be used as a substitute for changing the catheter if this is required. However, if other measures fail to rectify blockage then bladder irrigation may be one option. Oral acidification of urine through diet and oral medication (ascorbic acid and methenamine) is a more popular method of encrustation prevention (Getliffe & Fader, 2007). There are potential risks associated with the incorrect instillation of irrigation fluid into the bladder for catheter blockage or encrustation, including the physical force of flushing the bladder and the type of solution used. Breakage of the closed drainage system inevitably increases the risk of introducing infection and this should be considered when determining a need for the procedure (Colpman & Welford, 2005). Point of Interest Bladder irrigation with pre-boiled tap or sterile room temperature water may prevent stone and debris accumulation and may be an important element in the prevention of symptomatic infections and catheter blockages (Hirst, 2006). Further research is required in this area. Normal saline may be used for flushing of debris and small blood clots, but it is not recommended as a suitable effective irrigation solution for catheter encrustation, due to its neutral pH (Getliffe & Fader, 2007). On appraisal of current literature there is a lack of evidence to provide clear guidelines on bladder irrigation in the clinical setting. A systematic review protocol titled “Washout policies for the management of long-term indwelling catheterisation in adults” 2008, has been registered with The Cochrane Collaboration. Results of this research may guide the best practice for bladder irrigation. 62 9. Management recommendations: in-dwelling catheterisation - urethral and suprapubic ‘Deflation cuff’ formation can be a particular problem for all-silicone suprapubic catheters, and although cuffs can form with other catheters such as hydrogel coated latex, the retention force is less than with all-silicone material. Slow deflation of the silicone balloon may be helpful, as is reinsertion of 0.5-1mL water to fill the catheter inflation lumen and eliminate the balloon cuff. Subsequent use of a lubricant with gentle removal of the catheter can reduce tissue trauma and pain. Recommendations vary for assessment of people with catheters including a schedule of medical imaging of urinary tract, eg. cystoscopy, urinalysis, biopsy, urodynamics studies, and assessment of renal function (refer also to Table 6). However, the consensus appears to be that annual cystoscopy and/or biopsy should be instigated between 5-10 years after initial catheterisation, and suggested for people displaying hematuria or for those with chronic urinary tract infection resistant to standard therapy (Oliver, 2006). Good Practice Point Indwelling catheterisation • • • • • • • • • • • • Indwelling catheters should only be used after alternative management strategies have been considered. Ongoing assessment and evaluation of catheter care is the key factor in prevention of problems and risks associated with catheterisation. All-silicone or hydrogel-coated catheters are preferable to other materials for long-term use. A closed drainage system should be maintained to reduce risk of catheter-associated infection. Meatal cleansing by simple washing with soap and water during routine bathing or showering is recommended. Antiseptic agents are no advantage. Bladder irrigation and antibiotic prophylaxis are not recommended as routine infection control measures. The addition of disinfectants to drainage bags is not recommended as an infection control strategy. Asymptomatic bacteriuria should not be treated with antibiotics unless urological instrumentation is planned. All people with an IDC, especially a long term one, will have bacteruria and therefore culturing of the urine is not recommended. Identification of a characteristic pattern of catheter life can facilitate pre-emptive catheter changes in patients with recurrent catheter encrustation and blockage. Bladder cancer is a significant risk in long-term catheterised patients. Investigations should be case-specific rather than routine screening. If indwelling catheterisation is being considered, the suprapubic method should be considered alongside urethral catheterisation, following appropriate risk assessment. Suprapubic insertion should be carried out only by appropriately trained and skilled practitioners (Cottenden, Bliss, Fader et al., 2005). 9.3 Closed drainage systems Maintaining a sterile, continuously closed drainage system is important in the prevention of catheter-associated infection (CHRISP, 2004). A link drainage system such as attaching an overnight drainage bag to the leg bag can be used to maintain the integrity of the closed system (Schofield, 2001). Due to lack of evidence-based studies and involvement of other issues (such as cost-effectiveness), further studies on closed systems have been recommended (Dunn, Pretty, Reid et al., 2000). Clinicians are referred to the recommendations of the manufacturers and policy guidelines for each workplace. 9. Management recommendations: in-dwelling catheterisation - urethral and suprapubic Link to Section 8.12 63 10. Management recommendations: toileting programs, pelvic floor muscle training, bladder training, and combined approaches Link to Section 2 Section 10 has been developed using systematic review methodology. 10.1 Outline of interventions Link to Section 2.1 and Appendix 2 Recommendations in this section are divided into those for clients with cognitive impairment and those without. In general clinical practice, cognitive impairment is frequently defined by a Mini Mental State Examination (MMSE) score of 23 or below. For this guideline, relevant research studies have been systematically identified, critically appraised, the findings synthesised, and recommendations formed according to the GRADE system. 10.1.1 Interventions: people with cognitive impairment Link to Appendix 4 Link to Appendix 5 Interventions for clients with cognitive impairment include toileting programs such as prompted voiding and habit retraining (refer to Table 12, Section 10.2). These are described in detail in Appendix 4. Timed voiding is not discussed in this guideline because research in this area involves older people in residential care rather than those living in the community. The findings therefore cannot be generalised to the target group of community-dwelling older people. 10.1.2 Interventions: people without cognitive impairment Interventions for clients without cognitive impairment include pelvic floor muscle training (for women and for men post-prostatectomy), bladder training and a combination of approaches (refer to Table 12, Section 10.3, and Appendix 5). Additional interventions commonly used include biofeedback (pressure or electromyograph) as an adjunct to pelvic floor muscle training, and electrical stimulation. These two approaches are not explicitly considered in this guideline due to time limitations. Less common approaches include complementary therapies such as acupuncture, herbal medicine, nutritional therapy, and magnet therapy. These interventions are not considered in this guideline and the reader is encouraged to undertake evidence-based critical appraisal of the research in these areas. Point of Interest A study of 771 community-dwelling men and women (mean age 82.1 years for women and 80.6 years for men), classified participants into two groups according to level of independence. The independent group needed help in personal, instrumental or technical daily activities less than once a week or not at all, while those who were dependent needed ADL assistance at least once per week. The study found that, when controlled for age, the presence of both daytime frequency and nocturia was a predictor of the need for help in daily activities in both men and women. Although voiding symptoms were reported as being less bothersome than storage symptoms, both had a similar influence on daily life, causing people to avoid places and situations, to modify fluid intake and to limit social life (Stenzelius, 2006). 64 10. Management recommendations: toileting programs, pelvic floor muscle training, bladder training, and combined approaches 10. Management recommendations: toileting programs, pelvic floor muscle training, bladder training, and combined approaches 65 Evidence statement Quality of evidence (GRADE) These articles were reviewed by authors of this guideline Colling, Owen, McCreedy et al., 2003. Engberg, Sereika, McDowell et al., 2002. Jirovec & Templin, 2001. 10.2.1 Prompted voiding and habit retraining Evidence shows a low level of support for the benefit of toileting programs for older, frail, communitydwelling adults with incontinence and cognitive impairment LOW 10.2 Interventions for those with cognitive impairment Topic PROBABLY DO: Continence clinicians probably should implement toileting programs for selected older, frail, community-dwelling adults with incontinence and cognitive impairment, under the following circumstances: • The client’s carer has had the toileting program explained fully to him/her, including realistic estimation of the impact on time, laundering and so on • The client’s carer is motivated and has adequate social support mechanisms in place • The client’s carer is willing and able to follow the protocol Specifically, the clinician should: • Ensure that the first steps in incontinence management have been assessed, i.e. screening for ‘red flags’ and treating potentially reversible conditions associated with incontinence (DIAPPERS) (MASS 2007) • Ensure that the client has been screened for significant post-void residual using a bladder scan, and if present, that this is being managed • Encourage the program to be commenced as early as possible after the diagnosis of cognitive impairment, in order to establish a routine • Provide ongoing support and review for the client and their carer • Monitor the level of strain/burden on the carer Recommendation and rationale Table 12: Recommendations for toileting programs, pelvic floor muscle training, bladder training and combined approaches Link to Good Practice Point within Section 4.4.8 Link to Section 4.2 Link to Appendix 2 66 10. Management recommendations: toileting programs, pelvic floor muscle training, bladder training, and combined approaches 10.2.1 Prompted voiding and habit retraining (cont). Topic Evidence statement Quality of evidence (GRADE) Rationale: Although the limited available evidence does not demonstrate benefit of this intervention, it is recommended for selected clients (see above) for the following reasons: • The high economic and personal costs of incontinence to the community and the individual • The high burden of incontinence to the community and the individual • The need for proactive approaches to avoid or delay admission to residential care due to incontinence • The relatively low burden and cost of the intervention to the individual, providing their carer is motivated and supported See Appendix 4 for specific guidelines on implementation of toileting programs – Habit Retraining and Prompted Voiding Recommendation and rationale Link to Appendix 4 10. Management recommendations: toileting programs, pelvic floor muscle training, bladder training, and combined approaches 67 Evidence statement Quality of evidence (GRADE) These articles were reviewed by the authors of this guideline Miller, Ashton-Miller, & DeLancey, 1998. Burgio, Locher, Goode et al., 1998. 10.3.1 Pelvic floor muscle training Evidence shows a very low level of support for the benefit of teaching a specifically timed pelvic floor muscle contraction to a select group of older, frail, cognitively intact communitydwelling women with incontinence VERY LOW 10.3 Interventions for those who are cognitively intact Topic Rationale: Although the evidence for this intervention is low, it is recommended for the following reason: • Resource implications (cost, time and equipment) are insignificant, especially if done opportunistically during a vaginal examination PROBABLY DO: Continence clinicians probably should teach a pelvic floor muscle contraction that is precisely timed with the activity that provokes incontinence (eg a cough) in a select group of older, cognitively intact women with stress incontinence in the following circumstances: • Opportunistically, when performing a vaginal examination, and an effective voluntary pelvic floor muscle contraction is confirmed; • The client has stress incontinence that is associated with particular activities (eg coughing), but not urge incontinence alone • The client does not have a neurological disorder Recommendation and rationale Link to Section 11 and Appendix 2 68 10. Management recommendations: toileting programs, pelvic floor muscle training, bladder training, and combined approaches These articles were reviewed by the authors of this guideline Excluded studies: Jarvis & Millar, 1980. Jarvis & Millar, 1981. Colombo, Zanetta, Scalambrino et al., 1995. Fantl, Wyman, McClish et al., 1991. Mattiasson, Blaakaer, Hoye et al., 2003. 10.3.2 Bladder training Topic There is a low level of evidence for the benefit of bladder training in older communitydwelling, cognitively intact clients Evidence statement LOW Quality of evidence (GRADE) See Appendix 5 for specific guidelines on carrying out a bladder training program Rationale: Although the limited available evidence does not demonstrate benefit of this intervention, it is recommended for the following reasons: • The high economic costs of incontinence to the community and the individual • The high burden of incontinence to the community and the individual • The need for proactive approaches to avoid or delay admission to residential care due to incontinence DO Continence clinicians should implement a bladder training program with older community-dwelling, cognitively intact clients with urinary frequency and incontinence Recommendation and rationale Link to Appendix 5 Link to Appendix 2 and Table 2, Section 2 10. Management recommendations: toileting programs, pelvic floor muscle training, bladder training, and combined approaches 69 LOW Evidence shows a low level of support for the benefit of a combined approach of pelvic floor muscle training and bladder training in older community-dwelling, cognitively intact clients 10.3.3 Pelvic floor muscle training combined with bladder training These articles were reviewed by the authors of this guideline Burgio, Goode, Locher et al., 2002. Dougherty, Dwyer, Pendergast et al., 2002. Holtedahl, Verelst, & Schiefloe, 1998. McDowell, Engberg, Sereika et al., 1999. Subak, Quesenberry, Posner et al., 2002. Wyman, Fantl, McClish et al., 1998. Quality of evidence (GRADE) Evidence statement Topic Rationale: • There is a lack of evidence for biofeedback plus PFMT over PFMT alone in this group • There is evidence at the level of a systematic review (albeit from a younger age group) that adding biofeedback provides no further benefit over PFMT alone • Vaginal biofeedback equipment, if available, may be used, providing that correct pelvic floor muscle contraction has been confirmed on vaginal examination, and the clinician continues to monitor that correct pattern of pelvic floor muscle contraction occurs (MASS 2007). Vaginal biofeedback probes are for single patient use only. Sterilisation and re-use is not recommended DO Continence clinicians should use a combined approach of pelvic floor muscle training and bladder training with older community-dwelling, cognitively intact clients where both interventions are appropriate Specifically: • Ensure that the first steps in incontinence management have occurred, i.e. screening for ‘red flags’ and treating potentially reversible conditions associated with incontinence (DIAPPERS) (MASS 2007) • Ensure that the client has been screened for significant post-void residual using a bladder scan, and if present, that this is being managed Recommendation and rationale Link to Good practice Point within Section 4.4.8 Link to Appendix 2 and Table 2, Section 2 70 10. Management recommendations: toileting programs, pelvic floor muscle training, bladder training, and combined approaches These articles were reviewed by the authors of this guideline Exclude studies: Parekh, Feng, Kirages et al. 2003. Bales, Gerber, Minor et al. 2000. Burgio, Goode, Urban et al. 2006. Filocamo, Li Marzi, Del Popolo et al. 2005. Floratos, Sonke, Rapidou et al. 2002. Franke, Gilbert, Grier et al. 2000. Joseph & Chang 2000. Matthewson-Chapman 1997. Overgard, Angelsen, Lydersen et al. 2008. Porru, Campus, Caria et al. 2001. Van Kampen 2000. Wille, Sobottka, Heidenreich et al. 2003. 10.3.4 Management of post-prostate surgery incontinence with pelvic floor muscle training Topic Evidence shows a moderate level of support for the benefit of pelvic floor muscle training following prostate surgery for earlier attainment of urinary continence Evidence statement MODERATE Quality of evidence (GRADE) Rationale: • A proactive approach to continence is required when the aim is to prevent or delay residential care. • The associated costs and resource implications are not significant when compared with the potential cost savings • Although most of the studies used biofeedback to teach PFMT, it is not possible to identify the relative contributions of the exercises and the biofeedback assistance to the benefit of the treatment. None of the studies that compared biofeedback-taught PFMT and verbally-taught PFMT showed a difference between the two methods. Thus there is insufficient evidence to warrant recommending biofeedback as a routine tool in this population • There is no evidence from the available studies that electrical stimulation adds further benefit to PFMT in this population so the purchase of electrical stimulation equipment is not warranted DO Continence clinicians should implement a pelvic floor muscle exercise program as early as possible after removal of the catheter post-prostate surgery. Close liaison with the client’s urologist and/or general medical practitioner should occur Recommendation and rationale Link to Section 11 and Appendix 2 Point of Interest A Cochrane review sought to assess the effectiveness of vaginal cones (Herbison, Plevnick & Mantle, 2002), and found some evidence that weighted cones are better than no active treatment in women with stress urinary incontinence. Cones may be of similar effectiveness to pelvic floor muscle therapy and electrostimulation, but this conclusion must remain tentative owing to the inadequate size of the studies reviewed, and different outcome measures used. Some women do not like using vaginal cones. 10. Management recommendations: toileting programs, pelvic floor muscle training, bladder training, and combined approaches 71 11. Pelvic floor muscle function assessment and rehabilitation As indicated in its title, this guideline is written for continence clinicians. Continence physiotherapists are recognised as being the ideal health professionals to undertake pelvic floor muscle function assessment and rehabilitation. If other health professionals are interested in developing their skills and knowledge in this area, they are encouraged to undertake further training. Link to Section 2 Section 11 has been developed using non-systematic, narrative review. 11.1 Assessment of pelvic floor muscle function 11.1.1 Correct activation A correct contraction of the pelvic floor muscles (PFM) involves an inward and upward movement of the genital openings. This can be discerned via direct observation of the perineum. The “lift” of the bladder base can also be imaged using transabdominal ultrasound. A correct contraction of the PFM avoids co-contraction of the gluteals and adductors but includes contraction of the deep abdominal muscles (transversus abdominis and internal oblique) (Sapsford, Hodges, Richardson et al., 2001). More than 30% of women do not perform a correct “lifting” contraction of the PFM when given verbal instruction (Bump, Hurt, Fantl et al., 1991). This has also been confirmed via imaging of the bladder base using transabdominal ultrasound. A study of women with incontinence and/or prolapse found only 38% were able to produce a lift of the bladder base – that is, an effective pelvic floor muscle contraction. In 43% of the women, pelvic floor muscle contraction resulted in a depression of the bladder base (Thompson & O’Sullivan 2003). Good Practice Point An incorrect pattern of contraction that involves a “bearing down” manoeuvre has the potential to compromise pelvic floor function (Bump, Hurt, Fantl et al., 1991). It is therefore essential to determine correct lifting pattern of contraction when providing pelvic floor muscle exercises. 11.1.2 Strength A variety of methods for assessing the pelvic floor muscles via a digital vaginal muscle test have been documented (Bo & Sherburn, 2005). Two key differences are the use of one versus two fingers, and the scale used to record findings. It has been hypothesized that the use of two fingers in digital palpation could stretch the PFM and either inhibit their activity or conversely, increase their activity by providing increased proprioceptive feedback (Bo & Sherburn 2005). Therefore, number of fingers used in assessment should be documented and should be consistent within the one client. Health professionals are referred to their postgraduate training course content for advice on these and other issues; however, a short summary of the modified Oxford Scale, a commonly used scale, follows (table 13). The Oxford Scale can be used for either per vaginam or per rectum assessment, and therefore in both males and females. Use of the Scale assumes a correct contraction has been verified via visual observation of perineum. Usually, the best of three maximum voluntary contractions (MVCs), held for 3-5 seconds, is recorded. This helps to negate the problem that, in some women, the first contraction is better than subsequent contractions due to fatigue, whereas in other women, subsequent contractions are better as a learning effect takes place (Bo & Sherburn 2005). 72 11. Pelvic floor muscle rehabilitation Good Practice Point It is important to note that grading PFM via the Oxford Scale is not appropriate for clients with pelvic or perineal pain, vaginismus or other related disorders (Frawley, 2006). Results of studies on reliability of digital muscle testing are conflicting (Bo & Sherburn 2005). A recent study suggests that intra-therapist reliability is good for grading strength, but not endurance (Frawley, Galea, Phillips et al., 2006). Table 13: Laycock’s modified Oxford Scale Level Descriptor 0 No discernible muscle contraction 1 Flicker or pulsation is felt under the examiner’s finger 2 An increase in tension is detected, without any discernible lift 3 Muscle tension is further enhanced and characterized by lifting of the muscle belly and also elevation of the posterior vaginal wall. A grade 3 and stronger can be observed as an in-drawing of the perineum and anus 4 Increased tension and a good contraction are present which are capable of elevating the posterior vaginal wall against resistance (digital pressure applied to the posterior vaginal wall) 5 Strong resistance can be applied to the elevation of the posterior vaginal wall; the examining finger is squeezed and drawn into the vagina (Laycock & Jerwood 2001) Other documented forms of assessing pelvic floor muscle strength include MRI, EMG, vaginal dynamometers and vaginal weighted cones. The reader is referred to a summary article for more information and discussion of validity and reliability of these methods (Bo and Sherburn 2005). 11.1.2.1 Importance of position and documentation of position in assessment Variations in body position can affect the function of the pelvic floor muscles and, therefore, assessment findings. A study comparing continent and incontinent women investigated the timing of superficial versus deep pelvic floor muscles with PFM contraction (Devreese, Staes, De Weerdt et al., 2004). Continent women, when performing a PFM contraction, were more likely to contract the superficial before the deep PFM, in contrast to incontinent women. Some timing variation was also seen in different positions. In crook lying and upright sitting, the “suboptimal” pattern of deep before superficial contraction was seen in incontinent women more often than in supine, forward-lean standing and forward-lean sitting. 11. Pelvic floor muscle rehabilitation 73 A study of continent women by found that: • Vaginal squeeze pressure was highest in lying and crook lying (versus sitting and standing) • The measured grade tended to be lower in standing versus crook lying and supine • Displacement of the pelvic floor on trans-abdominal ultrasound, however, was higher in standing than supine and sitting • Women preferred the lying position over any upright position for digital muscle testing. (Frawley, Galea, Phillips et al., 2006) Good Practice Point The traditional lying position should be used for performing a digital muscle assessment, as it is practical, as well as preferred by the client. Crook lying and supine lying may produce differing assessment findings. Therefore, the specific position in lying, including the positioning of the legs, should be recorded and kept consistent on reassessment. Similarly, the client’s position should be recorded when assessing bladder base movement via trans-abdominal ultrasound. 11.1.2.2 Manometry Manometry involves the use of a device commonly called a perineometer. Using a pressure sensor, the intra-vagina or intra-anal pressure is measured while performing a pelvic floor contraction. However, evidence indicates that it is the urethral pressure that is of critical relevance in measuring closure pressure (Bo & Sherburn 2005). Use of a perineometer requires precise placement of the pressure probe for test-retest reliability. Inaccurate readings may result from the use of different diameters of vaginal probe. Also, measured increases in pressure may equally reflect intra-abdominal pressure rise. Contraction of other muscles such as the hip external rotators, gluteals and adductors may affect measurement (Bo & Sherburn 2005). Point of Interest While manometry may be useful in the research environment, it is unlikely to provide reliable information in the clinical setting. 11.1.3 Endurance Muscle endurance is defined as the length of time a maximum voluntary contraction (MVC) can be sustained before strength is reduced by >35%. In the pelvic floor, this is commonly tested as the length of contraction or the number of repetitions at set intervals before fatigue. Clinically, fatigue can be accompanied by initiation of extraneous muscle contractions including adductors and gluteals (Laycock & Jerwood, 2001). 11.1.4 Displacement Transabdominal ultrasound assessment of pelvic floor muscle function involves the use of a curved-array ultrasound probe, 3.5 or 5 MHz, placed suprapubically (either sagitally or transversely), and is undertaken to assess displacement of the bladder base during PFM contraction. It does not correlate with PFM strength (Sherburn, Murphy, Carroll et al., 2005). It is therefore not used to measure strength, but rather to confirm or teach correct contraction of the pelvic floor muscles. 74 11. Pelvic floor muscle rehabilitation Bladder base motion on transabdominal ultrasound cannot be measured from a fixed bony landmark, unlike perineal ultrasound which uses the pubic symphysis. However, bladder base motion during PFM contraction has been shown to correlate closely with bladder neck movement as measured with perineal ultrasound (Thompson, O’Sullivan, Briffa, et al, 2004a) and a lift of the bladder base on contraction of the PFM is the normal pattern of movement shown on MRI (Mikuma, Tamagawa, Morita et al., 1998). With a correct PFM contraction, a sagittal plane view displays displacement of the posterior bladder wall in an anterocephalic direction. For reliability of the sagittal plane view, it is important that the transducer is directly in the midline, aligned with the pubic symphysis (Sherburn, Murphy, Carroll et al., 2005). Point of Interest A concern with the use of transabdominal ultrasound is that a greater lift may not necessarily correlate with better PFM function, but rather, may reflect the degree of connective tissue laxity in the pelvic floor (Bo & Sherburn 2005). This technique is therefore best used to teach or confirm correct contraction; quantifying the displacement may not be clinically useful. 11.1.5 Integration with abdominal, respiratory and deep spinal muscle function A recent study in five healthy females and one healthy male provided some indications of the role of the pelvic floor muscles in breathing and postural control (Hodges, Sapsford & Pengel, 2007). By measuring EMG response of the PFM with breathing and rapid and repetitive arm movements, the study demonstrated a number of findings. The PFM were continually (tonically) active during the breathing cycle, the PFM activity increased in preparation for the postural challenge imposed by upper limb movement, and in association with abdominal muscle activity (rather than simply with increased intra-abdominal pressure). It seems likely that the PFM have an important tonic role and an anticipatory role in postural adjustment, probably contributing to control of the spinal and pelvic joints. Research has shown that a proportion of both continent and incontinent women demonstrate an abnormal increase in activation of chest and superficial abdominal wall muscles when attempting a pelvic floor muscle contraction (Thompson, O’Sullivan, Briffa, et al., 2004c). Women with urge incontinence and prolapse were significantly more likely to demonstrate abnormal patterns of muscle activation (Thompson & O’Sullivan, 2003; Thompson, O’Sullivan, Briffa, et al., 2004c). Increased PFM activity in women with incontinence was associated with greater activity of the external oblique abdominal muscles, resulting in increased intraabdominal pressure (Smith, Coppieters & Hodges 2007). This effect was even greater with severe incontinence. Good Practice Point Assessment of pelvic floor muscle function should include assessment of breathing pattern and abdominal and respiratory muscle use. 11.2 Treatment of pelvic floor muscle dysfunction in urinary incontinence Readers are referred to table 12, Sections 10.3.1, 10.3.3 and 10.3.4 of this guideline for a systematic review of management recommendations for pelvic floor muscle training. 11. Pelvic floor muscle rehabilitation 75 11.2.1 Importance of position Variations in body position have been demonstrated to affect the function of muscles important to continence (see Section 11.1 in this guideline). The PFM are able to produce a stronger contraction in upright, unsupported sitting compared to slumped sitting (Sapsford, Richardson & Stanton 2006). Variation in sequencing of the superficial and the deep pelvic floor muscles occurs in different positions. Continent women, unlike incontinent women, contract the superficial PFM before the deep PFM (Devreese, Staes, Janssens, et al., 2007). This pattern is more likely to occur in sitting leaning forward, standing leaning forward or lying with legs outstretched, whereas the opposite pattern is more likely to occur when lying with knees bent or sitting upright (Devreese, Staes, Janssens, et al., 2007). Point of Interest Choice of body position for teaching pelvic floor muscle activation should consider research findings, as well as the client’s functional ability and the daily activities that provoke symptoms. Good Practice Point • • • • Side lying should be chosen over crook lying and supine (due to tendency to recruit gluteal muscles in this position). While it may be easiest to gain PFM contraction in the recumbent position (supine, crook lying or side lying), the more functional upright position should be tried early, but adapted to recruit the muscles most effectively (forward-lean sitting, standing or forward-lean standing). Standing is a position used regularly by most people, so it is important to practise PMF contraction in standing, even though it has been associated with a suboptimal recruitment pattern. Clients demonstrating suboptimal muscle recruitment patterns or breathing patterns should practise PFME in side lying or supine with support under the knees until they master the correct pattern before progressing to upright positions. Slumped sitting should be avoided, and lumbar spine posture in sitting should be monitored closely when exercises are performed in sitting (see Section 11.2.2). 11.2.2 Importance of lumbar spine posture EMG activity of transversus abdominis on contraction has been found to be greater in extension compared to a flexed lumbar spine posture (Sapsford & Hodges, 2001). Transversus abdominis activation has also been shown to produce PFM contraction (Sapsford, 2001). Good Practice Point Considering the evidence for interaction between muscles of the lumbar spine and the PFM, clients should avoid a flexed lumbar spine during PFME, aiming for a neutral to extended posture. 11.2.3 Functional integration with abdominal capsule 11.2.3.1 Abdominal muscle recruitment EMG studies have shown that during a correct pelvic floor muscle contraction in lying, there is increased activation of the pelvic floor muscles and the lower fibres of internal oblique, with minimal activation of external oblique and chest wall muscles (Thompson, O’Sullivan, Briffa et al., 2004c). 76 11. Pelvic floor muscle rehabilitation Good Practice Point Lower abdominal wall movement should not be discouraged when performing PFME. Physiotherapists may use deep abdominal muscle activation to facilitate contraction of the pelvic floor muscles where assessment has indicated suboptimal pelvic floor muscle activation. 11.2.3.2 Breathing pattern Research has shown that a proportion of both continent and incontinent women demonstrate an abnormal increase in activation of chest and superficial abdominal wall muscles when attempting a pelvic floor muscle contraction (Thompson, O’Sullivan, Briffa, et al., 2004c). Clients should be encouraged to maintain a normal breathing pattern when performing PFME. Features of an incorrect breathing pattern include: • Breath holding • Shallow breathing • Increased rate of breathing • Excessively deep breathing • Recruitment of accessory muscles of respiration (upper chest and neck) • Decreased abdominal wall and lower rib movement. Good Practice Point If the client is using an incorrect breathing pattern when performing pelvic floor muscle exercises, the correct breathing pattern should be taught. 11.2.4 Retraining motor patterns 11.2.4.1 Timing Timing is a critical issue in pelvic floor muscle contraction. Postural activation of the PFM is delayed in women with stress urinary incontinence; in fact, in some women the activity of the muscles actually decreases just before the movement (Smith, Coppieters & Hodges 2006). Retraining of prolonged gentle (tonic) holds of the tranversus abdominis and/or the pelvic floor muscles may restore the normal pattern (Sapsford, 2001). This may need to occur prior to strength training of the pelvic floor (Sapsford, 2004). Training of a PFM contraction prior to and during a cough has been shown to reduce incontinence in women (Miller, Ashton-Miller & DeLancey 1998). Training of PFM contraction with appropriate abdominal muscle recruitment can also occur with nose blowing, laughing and sneezing, and if relevant, with high impact activities (Sapsford, 2004). Contemporary muscle rehabilitation focuses on retraining normal patterns of movement rather than specific muscles. For example, restoring optimal function of the lumbo-pelvic joints involves training correct stabilization strategies and movement patterns (Lee, 2004). In the same way, correct muscle activation patterns that avoid bladder descent, as identified in research, should be taught to achieve and maintain continence (Lee & Lee, 2004). These include: • Co-activation of the deep abdominals without excessive activity of the superficial abdominals and without gluteals and adductors • Maintenance of a diaphragmatic breathing pattern without excessive use of the accessory muscles of respiration, • Coughing without bulging of the abdominal wall. 11. Pelvic floor muscle rehabilitation 77 In addition to motor control deficits, other musculoskeletal factors contributing to incontinence should also be treated (Grewar & McLean, 2008). For example, manual compression through the pelvis has been shown to eliminate the increased descent of the bladder and pelvic floor muscles in women with sacroiliac joint pain. Specific rehabilitation of muscles of the pelvis and other strategies to restore adequate sacro-iliac joint compression may be helpful in clients with these deficits along with continence problems. Similarly, articular, muscular or fascial restrictions that contribute to postures and movement patterns that promote incontinence should be treated (Grewar & McLean, 2008). Good Practice Point Both motor control deficits and musculoskeletal factors that compromise the client’s continence should be treated. 11.2.5 Strength training/endurance training Strength of the PFM is not well correlated with a decrease in incontinence episodes or decreased pad weight (Devreese, Staes, De Weerdt et al., 2004). Additionally, women with stress incontinence produce greater PFM activity with challenges to their postural control (postural perturbations) than continent women (Smith, Coppieters & Hodge, 2007). Point of Interest It is clear that PFM strength is not the only factor in stress incontinence and may not even be the most important factor. However, it is often appropriate to provide clients with a PFM strength training program based on assessment findings. When providing a strength training program for the PFM, teaching PFM contraction as opposed to transversus abdominis muscle contraction will result in a greater upward displacement of the pelvic floor, which probably represents a stronger PFM contraction (Bo, Sherburn & Allen, 2003). Good Practice Point Structuring a PFME program • Teach correct activation pattern including best cue for individual client based on assessment, substitution manoeuvres to avoid, etc. 78 • Utilise whole abdomino-pelvic capsule concept to facilitate optimal activation patterns with other muscles for spinal and pelvic joint stabilization • Provide appropriate positions for exercise based on client function and assessment findings. Consider using forward-lean sitting or standing, especially for clients having difficulty • Provide recommendations for number of sessions per day, number of contractions, rest periods, number of sets – minimum 25 contractions total per day (Choi, Palmer & Park, 2007) • Treat, or refer for treatment, conditions that may be compromising the function of PFM and/ or abdominal wall or spinal muscles, including constipation and obstructed defecation, spinal or pelvic pain, etc. • It has been suggested there be a rest interval of four seconds between contractions. Once ten contractions with ten second holds have been achieved, the rest interval should be shortened (Laycock & Jerwood, 2001). 11. Pelvic floor muscle rehabilitation Point of Interest The following summary articles provide further reading on different approaches to pelvic floor muscle assessment and treatment. • Sapsford, R. (2004). Rehabilitation of pelvic floor muscles utilizing trunk stabilization. Manual Therapy 9: 3-12 • Grewar, H. and McLean, L. (2008). The integrated continence system: A manual therapy approach to the treatment of stress urinary incontinence. Manual Therapy article in press. Available online 12 March 2008 • Bo, K. and Sherburn, M. (2005). Evaluation of female pelvic floor muscle function and strength. Physical Therapy 85: 269-282). 11.3 Pelvic floor muscle rehabilitation for men There is some evidence that pelvic floor muscle rehabilitation in men is an effective form of conservative management for: Link to Sections 6.5.4 and 13 • Post prostatectomy urinary incontinence • Post micturition dribble • Erectile dysfunction. A smaller study of 55 men found post-micturition dribble in 36 subjects (Dorey, 2004). After three months of pelvic floor muscle exercises and three months of home exercises, 27 of the 36 subjects (75%) were cured, three (8%) improved, five (14%) dropped out and one still experienced leakage. Use of this ‘squeeze out’ technique (performing a strong contraction of the pelvic floor muscles after voiding) may facilitate a contraction of the bulbocavernosus muscle, thereby eliminating urine from the bulbar portion of the urethra. Erectile dysfunction increases with age, with two thirds of men at the age of 70 years having this problem. A randomised control trial (n=55) has shown that after three months, subjects in the treatment group had a significant improvement in their dysfunction. It should be noted that lifestyle changes can also improve erectile dysfunction, including reducing alcohol intake, quitting smoking, reducing weight, getting fit, and avoiding saddle pressure for pushbike riders (Dorey, Speakman, Feneley et al., 2004). A Cochrane systematic review of 17 trials of conservative management for post prostatectomy urinary incontinence found conflicting information about the benefit of pelvic floor muscle training, for either prevention or treatment of urine leakage after prostate surgery, whether for cancer or benign enlargement of the prostate (endoscopic resection). The review noted three trials that recruited pre-operatively and included all men undergoing radical prostatectomy, and suggests that men presenting with persistent urinary incontinence are a different population, who may not achieve the same level of benefit from pelvic floor muscle rehabilitation as those undergoing radical prostatectomy (Hunter, Moore & Glazener, 2007). Another systematic review of 11 papers evaluating the effectiveness of PFMT for treating urinary incontinence after radical prostatectomy found that PFMT with or without biofeedback enhancement hastens the return to continence more than no PFMT in men with urinary incontinence after radical prostatectomy (MacDonald, Fink, Huckabay et al., 2007). 11. Pelvic floor muscle rehabilitation 79 12. Adherence issues relating to pelvic floor muscle rehabilitation management Link to Section 2 Link to Table 14 in this Section Section 12 has been developed using non-systematic, narrative methodology. There are a number of theories and models that underpin thinking and research in this area. This guideline does not address all of these in detail, but provides a summary of three models. Table 14 provides information on studies which address adherence in this context. 12.1 Outline of the importance of adherence to treatment Adherence (compliance) to programs to treat incontinence, such as a pelvic floor muscle exercise program, is important to optimise outcome. Several studies have demonstrated a relationship between adherence to continence programs and improved outcome (Bo & Talseth, 1996; Chen, Chang, Lin et al., 1999; Lagro-Jansenn, Debruyne, Smits et al., 1991; Siu, Chang, Yip et al., 2003). 12.2 Psychosocial models to promote adherence There are numerous psychosocial models of behaviour and behaviour change. The following is a selection of models that have been cited in the pelvic floor muscle exercise literature. 12.2.1 Transtheoretical (Stages of Change) Model Link to Table 14 in this Section The Transtheoretical Model outlines five stages through which an individual progresses to successfully change behaviour (Prochaska & DiClemente, 1983). Progression through these stages occurs at varying rates. This is not necessarily a linear process, as the individual may regress and move back into an earlier stage (Marcus, Rossi, Selby et al., 1992). The model describes ten different strategies, or ‘processes of change’ that are applied to varying degrees in each of these five stages. Using a technique that is targeted at the particular stage of behaviour change of an individual can help to promote successful behaviour change (Marcus, Rossi, Selby et al., 1992). Table 14 outlines specific strategies that can be used to promote adherence to pelvic floor muscle exercises according to the client’s stage of change. The ten processes of change are broadly divided into experiential processes and behavioural processes. Experiential processes refer to the cognitive strategies people use, such as consciousness raising (seeking out information), while behavioural processes (taking actions) includes strategies such as counter conditioning (replacing an undesirable behaviour with a more favourable one). The model was originally applied to addictive behaviours such as smoking (Prochaska & DiClemente, 1983) but has also been applied to exercise behaviour (Marcus, Rossi, Selby et al., 1992). 80 12. Adherence issues relating to pelvic floor muscle rehabilitation management 12. Adherence issues relating to pelvic floor muscle rehabilitation management 81 Not currently practising the behaviour but intending to within six months Contemplation Less likely to use behavioural processes • Teach facts, myths about incontinence, PFM and PFME. Provide handouts with information, diagrams, debunking myths • Weigh up pros and cons of PFME • Explore client’s beliefs around continence and their ability to perform PFME. Ask them to rate how much their incontinence bothers them /10, rate their confidence in PFME being able to help them /10, and their confidence in being able to stick to the program /10 • Encourage client to identify people who have successfully incorporated PFME, or give case studies of people in similar circumstances • Encourage discussion about how they would feel about themselves if they were able to incorporate PFME into their lives • Encourage identification of barriers and solutions • Encourage confiding in partner/friend and asking for support/reminders to do PFME • Establish rapport with client • Explore client’s beliefs around continence and their ability to perform PFME. Ask them to rate how much their incontinence bothers them /10, rate their confidence in PFME being able to help them /10, and their confidence in being able to stick to the program /10 • Teach facts, myths about incontinence, PFM and PFME. Provide handouts with information, diagrams, debunking myths • Weigh up pros and cons of doing PFME Less likely than those in other stages to use any change processes Not currently practising the behaviour and not intending to within six months Pre-contemplation Likely to use experiential processes Example strategies for PFME Adapted from (Alewijnse, Mesters, Metsemakers et al., 2002; Marcus, Selby, Niaura et al., 1992; Prochaska & DiClemente, 1983) Change processes to be used (Marcus, Rossi, Selby et al., 1992) Definition Stage of change (Prochaska & DiClemente, 1983) Table 14: Application of the transtheoretical model to a pelvic floor muscle exercise program 82 12. Adherence issues relating to pelvic floor muscle rehabilitation management Equally likely to use experiential processes as in the previous stage More likely to use behavioural processes than in the previous stage Link to Section 7.3 • Discuss impact of incontinence on different aspects of life. Use of QoL questionnaire may be a useful starting point • Weigh up pros and cons of regular PFME • Set short and long-term goals • Consider rewards for behaviour • Make a contract • Assess ability to perform PFME correctly and correct substitution patterns (eg incorrect breathing, contraction of inappropriate muscles) • Provide simple technique for self-assessing correct PFME contraction (eg checking normal breathing, feeling for lift, visual feedback of perineum with mirror) • Encourage client to identify people who have successfully incorporated PFME, or give case studies of people in similar circumstances • Discuss how other people may successfully incorporate PFME into different settings and circumstances Currently practising the behaviour but not regularly • • • • Example strategies for PFME Adapted from (Alewijnse, Mesters, Metsemakers et al., 2002; Marcus, Selby, Niaura et al., 1992; Prochaska & DiClemente, 1983) Preparation Change processes to be used (Marcus, Rossi, Selby et al., 1992) Encourage active contribution to goal-setting Encourage brainstorming appropriate rewards Give examples of positive self-talk Ask client to identify an outcome that occurred in their life because of their taking responsibility and taking positive action • Form a ‘contract’ with the client • Provide and encourage use of sticker reminders • Encourage associating PFME with a regular activity, such as washing hands, having a drink, or after voiding Definition Contemplation (cont.) Stage of change (Prochaska & DiClemente, 1983) 12. Adherence issues relating to pelvic floor muscle rehabilitation management 83 Action Preparation (cont) Stage of change (Prochaska & DiClemente, 1983) Currently practising the behaviour regularly, but has only begun doing so in the last six months Definition More likely to use experiential and behavioural processes than in the previous stage Change processes to be used (Marcus, Rossi, Selby et al., 1992) • Encourage identification of barriers and solutions • Encourage confiding in partner/friend and asking for support/reminders to do PFME • Encourage active contribution to goal-setting • Encourage brainstorming appropriate rewards • Give examples of positive self-talk • Ask client to identify a positive life outcome due to having taken responsibility and positive action • Form a ‘contract’ with the client • Provide and encourage use of sticker reminders • Discuss factors that have led to or could lead to relapse • Re-frame relapse in positive terms • Reinforce skills through continued feedback • Reinforce self-efficacy through encouragement • Teach further cues to monitor that the PFME are being performed correctly • Encourage keeping an exercise diary • Provide regular contact (even telephone) to provide encouragement and check progress • Discuss how other people may successfully incorporate PFME into different settings and circumstances • Encourage identification of barriers and solutions • Provide and encourage use of sticker reminders • Encourage associating PFME with a regular activity, such as washing hands, having a drink, or after voiding Example strategies for PFME Adapted from (Alewijnse, Mesters, Metsemakers et al., 2002; Marcus, Selby, Niaura et al., 1992; Prochaska & DiClemente, 1983) 84 12. Adherence issues relating to pelvic floor muscle rehabilitation management Definition Currently practising the behaviour and has been regularly for longer than six months Stage of change (Prochaska & DiClemente, 1983) Maintenance Less likely to use experiential processes, but still likely to use behavioural processes Change processes to be used (Marcus, Rossi, Selby et al., 1992) • Encourage identification of barriers and solutions • Reinforce skills, self-efficacy and self-esteem • Discuss factors that have led to or could lead to relapse and strategies to counter them Example strategies for PFME Adapted from (Alewijnse, Mesters, Metsemakers et al., 2002; Marcus, Selby, Niaura et al., 1992; Prochaska & DiClemente, 1983) 12.2.2 Bandura’s Self-Efficacy and Social Influence Theory The foundation of the Social Cognitive Theory, developed by Bandura, is that human beings are proactive, rather than reactive organisms shaped by environmental forces or driven by inner impulses. Human behaviour is therefore the product of a complex interplay of personal, behavioural and environmental influences. Bandura’s theory highlights the importance of the role of cognition in human behaviour. A key component influencing cognition is seen to be self-efficacy, the self-beliefs that enable the individual to exert control over their thoughts, feelings and actions. These beliefs influence the choices that people make, the amount of effort that will be expended on an activity, how long they will persevere when confronted with obstacles, and how resilient they will be in the face of adverse circumstances (Pajares, 2002). The reader is encouraged to explore this theory further in relation to how to an increase in self efficacy can improve adherence. 12.2.3 Attitudes - Social Influence – Self-Efficacy (ASE) Model The ASE model is based on a theory of behavioural intention rather than behavioural change, which suggests that behavioural change is best predicted by an individual’s intention to perform that behaviour. The ASE model postulates that behavioural intention is determined by three key factors: attitudes, social influences and self-efficacy expectations (Alewijnse, Mesters, Metsemakers et al., 2003). These are seen as the proximal factors that directly affect the behavioural intention, while distal factors are those which influence the proximal factors indirectly. Distal factors include socio-demographic, psychological, socio-cultural and medical variables. In relation to intention to perform pelvic floor muscle exercises, specific proximal and distal determinants have been delineated as shown in figure 4. Specific Proximal Factors (direct effect on behavioural intention) • Positive and negative outcome expectations regarding adherence to PFME • Perceived social norms • Modelling • Social support • Self-efficacy beliefs. Specific Distal Factors (indirect effect on behavioural intention) • Lay beliefs about incontinence • Self-care strategies • Illness representation • Cultural norms and values • Risk perception • Prognosis • Severity of symptoms • Symptom impact. Figure 4: Specific proximal and distal factors affecting adherence to pelvic floor muscle training (Alewijnse, Mesters, Metsemakers et al., 2003) 12. Adherence issues relating to pelvic floor muscle rehabilitation management 85 According to this model, barriers can be encountered once the behaviour has commenced, and can in turn influence the three key factors of attitudes, social influences and self-efficacy expectations. Barriers to PFM training are outlined in Figure 5. Barriers to pelvic floor muscle training: • Lack of discipline • Lack of time • Lack of energy • Forgetting to do exercises • Stressful situations • Associations with sex • Perceiving the pelvic floor as an unfamiliar body area • Difficulties integrating exercises in daily life • Fluctuations in effectiveness • Muscle pain in the bladder • Self-esteem • Body esteem • Verbal feedback or reinforcement from others. Figure 5: Barriers to pelvic floor muscle training (Alewijnse, Mesters, Metsemakers et al., 2002; Alewijnse, Mesters, Metsemakers et al., 2003) 12.3 Evidence 12.3.1 Factors associated with adherence Link to Table 15, Section 12.3.3 Several studies have specifically examined psychological/behavioural variables and their association with adherence to treatment programs, and table 15 summarises these studies. The reader is encouraged to assess the reliability and validity of these studies, bearing in mind that retrospective studies are less ideal than cross-sectional cohort and case series studies. • A case-series (Kartha, 1989) that applied a prediction model of adherence to a published study of 55-90 year-old stress-incontinent women undergoing a PFME program over six months found that the ‘perception of seriousness’ of their condition was associated with increased adherence to PFME. • A cross-sectional cohort study of 55 Taiwanese women with urinary incontinence tested the hypothesis that adherence to PFME could be predicted by five key concepts: ‘knowledge of PFME’, ‘attitudes towards PFME’, ‘partner cohesion’, ‘perceived benefits of PFME’ and ‘PFME self-efficacy’ (i.e. confidence in successfully performing PFME). Selfefficacy directly predicted both perceived adherence and adherence behaviour to PFME (Chen, 2001). Link to Section 12.2.3 86 • Using the ASE model, a cross-sectional cohort study (Alewijnse, Mesters, Metsemakers et al., 2001) also found that self-efficacy (perception of ability to perform the exercises as recommended under various circumstances) predicted intention to adhere to a physiotherapy program in a sample of 129 women with urinary incontinence. 12. Adherence issues relating to pelvic floor muscle rehabilitation management 12.3.2 Scales predicting adherence Broome developed a self efficacy scale based on Bandura’s Self-Efficacy and Social Influence Theory which was tested on a sample of 125 women aged 50 and older with urinary incontinence, including a subset of women who had completed a course of behavioural treatment for their incontinence. The scale revealed that the higher the initial self-efficacy, the greater the likelihood of a positive outcome (Broome, 1999). Similarly, Chen developed a self-efficacy scale for the performance of PFME (Chen, 2004). This scale incorporated aspects of Bandura’s Model and the Health Promotion Model (Pender & Pender, 1986). The scale was tested on 106 Taiwanese women with urinary incontinence, aged 24 to 89, who had been instructed to perform PFME for at least six weeks, and revealed a moderate correlation between the scale and the subjects’ perception of outcome; that is, the higher their self-efficacy as measured by the scale, the better they tended to perceive the outcome of their program. Point of Interest People with higher self-efficacy tend to have an actual or perceived positive outcome to treatment of their incontinence. 12.3.3 Health education programs and devices to assist adherence A number of studies have examined the effects of specific health education programs or tools as supplements to treatment for urinary incontinence, and a table summarising techniques to promote adherence is included in this section (refer table 15). The reader is encouraged to assess the reliability and validity of these studies, bearing in mind that retrospective studies are less ideal than cross-sectional cohort and case series studies. A randomised controlled trial of 133 women with incontinence (Alewijnse, Mesters, Metsemakers et al., 2003) compared a “usual patient education and PFME program” provided by a physiotherapist to the same program supplemented with a health education program. The health education program was based on the ASE model and hence aimed to influence adherence through the mediation of attitudes, social expectations and self-efficacy. A self-help guide was used, which included reminders to exercise (eg. stickers), guidance for adherence (eg. tips to address barriers to adherence and relapse prevention strategies) and structured feedback. Data from the 23% who dropped out was not collected. The drop-out group had more severe and more frequent urinary incontinence episodes. There was no statistically significant difference found between the two groups. Intention to adhere did not significantly predict long-term adherence behaviour, a finding not in support of the ASE theory. However, short-term adherence to the program was a predictor of long-term adherence. Link to Section 12.2.3 A quasi-randomised controlled trial (i.e. allocation by alternation rather than at random) of 48 Japanese women with stress urinary incontinence (Kim, 2001) compared the efficacy of a PFME program (control group) with the addition of a Continence Efficacy Intervention Program (treatment group). The program consisted of a pamphlet on PFM instruction, a video, a training diary, a schedule guideline, and a follow-up phone call including further education and encouragement. Adherence and improvement in condition were measured subjectively, and showed significantly better results in the treatment group. 12. Adherence issues relating to pelvic floor muscle rehabilitation management 87 A non-randomised controlled trial involving 46 Japanese women with stress urinary incontinence (Sugaya, Owan, Hatano et al., 2003) compared two approaches to a PFME program. The control group received a pamphlet about PFME whereas the treatment group received the pamphlet plus timer that sounded three times a day to cue the subject to perform her exercises. Its visual display indicated a rhythm to which the subject was encouraged to perform her PFME. There was no statistically significant difference between groups in number of incontinence episodes or pad use, but there was a statistically significant improvement in quality of life in the treatment group compared to the control group. A quasi-randomised controlled trial of women with stress urinary incontinence (Gallo & Staskin, 1997) was guided by the Health Promotion Model (Pender & Pender, 1986), which highlights the importance of cues to action. The trial compared a biofeedback-assisted PFME program (control group) with the addition of an audiotape (treatment group). The audiotape contained cues for PFM contraction and ran through a PFME session. A significantly greater percentage of those in the treatment group demonstrated greater adherence to the program. Effect of adherence on continence outcomes was not reported. Good Practice Point Limited research of variable quality and reliability investigating factors predicting adherence to continence programs suggests the following: Encouraging clients to complete a bladder diary, in addition to assisting assessment and • monitoring of progress, can give the clinician an indication of the client’s likelihood of adhering to treatment. • Depression itself is a risk factor for some chronic diseases, and can affect adherence to medical regimes, the effectiveness of care, the potential speed of recovery and it may increase the risk of poor outcomes (Queensland Health strategy for chronic disease 20052115, 2005). Screening for depression, followed by appropriate referral is essential, as depression may predict poor adherence to continence programs. • Clients should be fully informed of the likely outcomes of untreated urinary incontinence in order to increase understanding of the seriousness of their condition, as this may improve adherence with the program. • Treatment programs should focus on strategies to improve the client’s self-efficacy, as this might be associated with improved adherence. Limited research of variable quality and reliability investigating health education programs to supplement continence programs and devices to promote adherence suggests the following: • Clients who are poorly compliant with their program in the short-term are less likely to be compliant in the long term. Clinicians should aim to identify poor adherence as early as possible and focus on strategies to improve it. • Use of additional resources, such as pamphlets, videos, DVDs, audiotapes and training diaries, as well as follow-up support, may help improve adherence. • Use of culturally appropriate and gender specific staff and resources. 88 12. Adherence issues relating to pelvic floor muscle rehabilitation management 12. Adherence issues relating to pelvic floor muscle rehabilitation management 89 Study type Retrospective case series Retrospective statistical analysis of randomised controlled trials Case study series applying a prediction model of adherence Author Kincade, Peckous, & BusbyWhitehead, 2001 Shishani, 2003 Kartha, 1989 55-90 year old stress incontinent women 98 men and women, 50 years and over Sample None stated None stated None stated Control Treatment Undergoing PFME program over 6 months Biofeedbackassisted PFME Intervention Table 15: Summary of studies comparing adherence and pelvic floor muscle training Perception of seriousness Fewer depressed symptoms at baseline Increased frequency of urinary leakage episodes at baseline Completion of 7 day bladder diary Significant adherence factors Age, mobility level, use of hormone therapy or diuretics, homebound status, caregiver status, living arrangements, duration of urinary incontinence Age, gender, education, race, incontinence related variables, distance client travelled to clinic, referral source, previous treatment, number of comorbidities, prescription medicines Non-significant adherence factors 90 12. Adherence issues relating to pelvic floor muscle rehabilitation management 129 women with urinary incontinence Cross-sectional cohort study Self efficacy scale based on Bandura’s self efficacy and social influence theory Self efficacy scale Alewijnse, Mesters, Metsemakers et al., 2001 Broome, 1999 Chen, 2004 106 Taiwanese women with urinary incontinence aged 24 – 89 years 125 aged 50 and older with urinary incontinence, including a subset of women who had completed a behavioural treatment for incontinence 55 Taiwanese women with urinary incontinence Cross-sectional cohort study Chen, 2001 Sample Study type Author None stated None stated Control Treatment PFME for at least 6 weeks Physiotherapy program Intervention The higher the perception of self efficacy, the better the perceived outcome. The higher the initial self efficacy, the greater the likelihood of a positive outcome Self efficacy (perception of ability to perform the exercises as recommended under various circumstances) PFME self efficacy, namely confidence in successfully performing PFME Significant adherence factors Knowledge of PFME Attitudes towards PFME Partner cohesion Perceived benefits of PFME Non-significant adherence factors 12. Adherence issues relating to pelvic floor muscle rehabilitation management 91 Study type Randomised control trial Pseudorandomised controlled trial Non-randomised controlled trial Pseudorandomised controlled trial Author Alewijnse, Mesters, Metsemakers et al., 2003 Kim, 2001 Sugaya, Owan, Hatano et al., 2003 Gallo & Staskin, 1997 Women with stress urinary incontinence As for control with addition of audiotape Pamphlet plus device to improve adherence to the program Pamphlet about PFME Biofeedback assisted PFME program As for control but with addition of a continence efficiency intervention program PFME program 48 Japanese women with stress urinary incontinence 46 Japanese women with stress urinary incontinence As for control but supplemented with a health education program based on ASE model Treatment Usual patient education and PFME program provided by a physiotherapist Control Intervention 133 women with incontinence Sample Significantly greater percentage of those in treatment group demonstrated greater adherence to the program Statistically significant improvement in QoL in the treatment group Subjective adherence statistically significantly greater in treatment group Subjective improvement significantly greater in treatment group Short term adherence was a predictor to long term adherence Significant adherence factors Effect of adherence on continence outcomes was not reported Number of continence episodes or pads used. Intention to adhere Non-significant adherence factors 13. Containment management of urinary incontinence Despite the best treatment of bladder and bowel problems, incontinence commonly persists. While improving and/or regaining continence should be the ultimate goal, the appropriate selection and use of continence aids can make incontinence more manageable and comfortable, and boost confidence and self-esteem. Prescription of continence aids should follow a thorough continence assessment, appropriate interventions and management (Miller & Burgin, 2008). The selection of continence aids should be carried out using a problem solving approach. Health professionals assessing continence problems should be aware of the many choices available and ensure clients receive comprehensive advice when selecting and fitting continence aids to ensure optimal outcomes. Manufacturers are continually updating and developing new products and it is essential that health professionals regularly update their knowledge (Miller & Burgin, 2008). To ensure prescription of the most appropriate continence aid after the comprehensive assessment, management, and review of management outcomes, product selection should consider the following points: • Volume lost in incontinence episodes • Diurnal pattern of urinary incontinence • Ease of use and disposal • Client preference • Cost. When choosing a product the EASE mnemonic may assist: • E - effect of the product to contain odour and urine/faeces • A - appropriateness for client/carer • S - safety of product for client • E - effective cost considerations. A booklet titled “Continence products: personal characteristics and specific considerations when selecting continence products” may assist clinicians when considering the functional implications of most of the commonly prescribed continence products (MASS 2007b). Point of Interest Referral to an occupational therapist for a detailed functional assessment should be considered, as other health professionals will not have the necessary knowledge and skills to assess a client’s full functional ability. Increased awareness of functional aspects of continence promotion can often solve the environmental and functional issues that are causing or contributing to the incontinence. This includes assisting with the best method of applying and removing the continence aid. 13.1 Skin health and continence products The healthy skin has a protective acid mantle, with a pH of between 5.4 – 5.9 (Ersser, Getliffe, Voegeli et al., 2005). With incontinence, decomposition of urinary urea by microorganisms release ammonia to form the alkali, ammonium hydroxide. Chemical irritation of the skin may arise from both the rise in alkalinity and bacterial proliferation (Ersser, Getliffe, 92 13. Containment management of urinary incontinence Voegeli et al., 2005). The combination of urine and faeces causes significantly higher levels of irritation than urine or faeces alone, since the presence of faecal urease results in the breakdown of urinary urea causing an increase in pH to 8.0 or higher, which increases the activities of faecal proteases and lipases (Ersser, Getliffe, Voegeli et al., 2005; Gray, Bliss, Erner-Seltun et al., 2007; Gray, Ratliff & Donovan, 2002). Liquid stool tends to be richer in digestive enzymes, which, when combined with its elevated water content, is particularly damaging to the skin (Gray, Bliss, Erner-Seltun et al., 2007). Prolonged exposure to water alone has been shown to cause hydration dermatitis, and prolonged occlusion of the skin (as with a continence product) reduces skin barrier function and significantly raises microbial counts and pH (Ersser, Getliffe, Voegeli et al., 2005; Gray, Bliss, Erner-Seltun et al., 2007). Even in the absence of incontinence, prolonged exposure of the perineal skin to perspiration under an incontinence containment brief raises the local pH to approximately 7.1, increasing the risk for irritant dermatitis (Gray, Ratliff & Donovan, 2002). Prolonged occlusion of the skin under an absorptive incontinence product for five days has been shown to increase sweat production and compromise barrier function, resulting in elevated trans-epidermal water loss, CO2 emission, and pH (Gray, Bliss, Erner-Seltun et al., 2007). Use of containment aids increases susceptibility to over-hydration and elevated skin temperatures, both of which compromise the skin barrier (Lekan-Rutledge, Doughty, Moore, et al., 2003), and contribute to incontinence associated dermatitis (Gray, Bliss, Erner-Seltun et al., 2007). Excess moisture on the skin will eventually produce mechanical change. Twice as much energy is required to produce frictional erosions on dry skin as on skin subjected to 24 hour water exposure (Farage, Miller, Berardesca et al., 2007). Skin hydration following occlusion is significantly higher and slower to dissipate in aged skin (Farage, Miller, Berardesca et al., 2007). Thus, continence aids should be firmly fitting but not too tight, to avoid an occlusive environment (Lekan-Rutledge, Doughty, Moore, et al., 2003), be sufficiently absorbent to draw urine away from the skin and lock it into the core of the pad, and should be changed before they become sodden (Ersser, Getliffe, Voegeli et al., 2005; Nazarko, 2007). With urinary incontinence, dermatitis begins between the labial folds in women, or the scrotum in men (Farage, Miller, Berardesca et al., 2007; Gray, Bliss, Erner-Seltun et al., 2007), while dermatitis associated with faecal incontinence originates in the perianal area (Farage, Miller, Berardesca et al., 2007; Gray, Bliss, Erner-Seltun et al., 2007) and progresses to the posterior aspect of the upper thighs. Unusual patterns may reflect occlusion of the skin by a containment device (Farage, Miller, Berardesca et al., 2007). The prevention of perineal dermatitis or the restoration of perineal skin integrity and prevention of recurrent damage are of critical consideration in management of urinary and/or faecal incontinence (LekanRutledge, Doughty, Moore, et al., 2003). Points of Interest Three key factors contribute to incontinence associated dermatitis: • • • Tissue tolerance: affected by age, health status, nutritional status, oxygenation, perfusion and core body temperature Perineal environment: affected by the character of the incontinence (urinary, faecal or double incontinence), the volume and frequency of incontinence, mechanical chafing, introduced agents such as allergens or irritants, and factors that compromise the skin’s barrier function such as hydration, pH, faecal enzymes, and fungal or bacterial pathogens Toileting ability: mobility, sensory perception, cognitive awareness (Brown, 1995, cited in Gray, Bliss, Erner-Seltun et al., 2007). 13. Containment management of urinary incontinence 93 Points of Interest cont. Active preventative care to maintain skin health is essential, including cleansing, moisturising and protecting skin. The best measures to prevent skin breakdown are by initial thorough assessment and a consistent approach to client and carer education with ongoing review (Lekan-Rutledge, Doughty, Moore, et al., 2003). 13.1.1 The perineal assessment tool The perineal assessment tool has undergone content validation and may be used to assess incontinence associated dermatitis risk. However, as it has not been extensively used in research or clinical setting, it should be used in conjunction with regular, descriptive assessments of skin folds within the perineum, the lower abdomen, between the buttocks and adjacent skin folds of the inner thighs, scrotum and labia majora. Table 16: The perineal assessment tool (Nix, 2002) Factors Descriptor Type and intensity of irritant Formed stool and/or urine Soft stool with or without urine Liquid stool with or without urine 0 1 2 Duration of irritant Linen/pad change at least every 2 hours or less Linen/pad change at least every 4 hours or less Linen/pad change at least every 8 hours or less 0 Clear and intact Erythema/dermatitis with or without candidiasis Denuded/eroded skin with or without dermatitis 0 1 0 – 1 contributing factor 2 contributing factors 3 or more contributing factors 0 1 2 Perineal skin condition Contributing factors (low albumin, antibiotics, tube feeding, bacterial infections causing diarrhoea) Score 1 2 2 Calculate the cumulative score: higher scores indicate a greater risk for incontinence associated dermatitis. Cited in Gray, Bliss, Erner-Seltun et al., 2007 13.1.2 Types of skin products Moisturisers are substances designed to soften and increase the pliability of the stratum corneum by increasing its hydration. Moisturisers containing occlusives and humectants can effectively repair the damaged stratum corneum. Barrier enhancing skin cleansers and moisturisers can both maintain and aid in the restoration of skin health. Petrolatumdepositing liquid cleansers offer therapeutic solutions for both diseased and healthy skin (Schwartz, Centurion & Draelos, 2008), while those containing humectants such as glycerin, lanolin or mineral oil, replace oils in the skin and promote its effectiveness as a moisture barrier. Moisturisers can be applied as a separate step in perineal skin care, but many are combined with perineal skin cleansers (Gray, Ratliff & Donovan, 2002). Humectants attract water when applied to the skin, and include glycerin, sorbitol, urea, alpha hydroxy acids (AHAs) and sugars (Schwartz, Centurion & Draelos, 2008). 94 13. Containment management of urinary incontinence Emollients are soothing to the skin or the mucous membrane. They smooth roughened skin, lubricate, replace natural skin lipids, and provide occlusion. Emollients are comprised of water in oil emulsions, so oil is the largest component. The oil concentration affects the ease of spreading and degree of occlusion required (Schwartz, Centurion & Draelos, 2008). Lubricants reduce friction, heat or wear when introduced as a film between solid surfaces (Schwartz, Centurion & Draelos, 2008). Occlusives (also referred to as moisture barriers or skin protectants), physically block the surface of the stratum corneum from exposure to irritants or moisture, and reduce transepidermal water loss. They have an emollient effect. Petrolatum is the principal ingredient used in occlusive formulations (Schwartz, Centurion & Draelos, 2008), with other active ingredients including dimethicone, lanolin and zinc oxide (Gray, Ratliff & Donovan, 2002). Hoggarth (2005) found that the most effective barriers are those that contained zinc oxide, followed by water-in-oil and non-aqueous based formulations. The least effective barrier product is an oil-in-water based formulation (Hoggarth, Waring, Alexander et al, 2005). A moisture barrier may be incorporated into skin cleansers or applied separately as a cream or ointment (Gray, Ratliff & Donovan, 2002). Alternatives to occlusives include: • Powders, which absorb excessive moisture and reduce friction and erosion when applied to opposing skin surfaces. Cornstarch is preferred to talcum powder, because using talc powders in perineal area may increase risk of invasive ovarian cancer (Gray, Ratliff & Donovan, 2002). Powders should only be applied as a light dusting. Caking exacerbates, rather than relieves, friction and erosion produced when skin folds in the perineum move against one another (Gray, Ratliff & Donovan, 2002). • Pastes, which are ointments with powder added for durability. A barrier paste may be used if extensive perineal skin erosion is producing exudate. Pastes absorb excess drainage and block exposure to irritants. Zinc oxide is common ingredient in barrier pastes. It is important to use an appropriate product such as mineral oil to remove pastes, as otherwise vigorous scrubbing may be required (Gray, Ratliff & Donovan, 2002). • Liquid barrier films (skin sealants) comprise a polymer combined with a solvent (usually alcohol). The solvent evaporates on skin, and polymer dries to form a barrier. Use judiciously, as alcohol may be irritating or locally cytotoxic to compromised perineal skin. A liquid film barrier should not be used with a barrier cream or paste because the products are often incompatible (Gray, Ratliff & Donovan, 2002). 13.1.3 Prevention of incontinence associated dermatitis (IAD) • Cleanse skin gently with a pH neutral product to remove irritants and pathogens. Cleansing agents should be pH balanced and contain surfactants to emulsify stool and lift irritants from the skin surface with minimal force. Added fragrances may contribute to allergic contact dermatitis (Gray, Bliss, Erner-Seltun et al., 2007; Lekan-Rutledge, Doughty, Moore, et al., 2003) • Moisturisers contain emollients that penetrate the skin to restore lipids, and humectants to bind moisture at the epidermal level. Some cleanser products contain moisturisers (Gray, Bliss, Erner-Seltun et al., 2007; Lekan-Rutledge, Doughty, Moore, et al., 2003). • Routine use of a skin protectant is recommended for those at risk of incontinence associated dermatitis, including those experiencing high volume or frequent incontinence, or those with double urinary and faecal incontinence. Moisture barriers to protect the skin against irritants and moisture, by providing a water-repellent coating to the skin. Many clinicians advocate application of products that incorporate a skin protectant into a one-step cleansing solution or system, thus reducing the time required to adequately cleanse and protect the perineal and perigenital skin, particularly in residential care settings (Gray, Bliss, Erner-Seltun et al., 2007; Lekan-Rutledge, Doughty, Moore, et al., 2003). 13. Containment management of urinary incontinence 95 13.1.3.1 Cleansing Repetitive cleansing increases the rate at which the epidermal cells and surface lipids are removed. This compromises skin barrier properties and increases the risk of dermatitis, particularly in older people, whose risk is higher due to thinning of the epidermis and reduced production of skin lipids. Repetitive cleansing and exposure to alkaline urine or stool can also disrupt the skin’s acid mantle (Lekan-Rutledge, Doughty, Moore, et al., 2003). Soap is made from a mixture of alkalis and fatty acids, and tends to have a higher pH than that of normal skin. Its ability to cleanse the skin requires decomposition in water releasing free alkali and insoluble acid salts that remove dirt and irritating substances from the skin (Gray, Bliss, Erner-Seltun et al., 2007). Soap may adversely affect the skin by removing natural sebum oil from the skin and raising its alkalinity (Ersser, Getliffe, Voegeli et al, 2005). Perineal skin cleaners combine detergents and surfactant ingredients to loosen and remove dirt or irritants. Many also contain emollients, moisturisers, or humectants to restore or preserve optimal barrier function, and many are pH neutral, ensuring their pH is close to that of normal healthy skin (5.0-5.9) (Ersser, Getliffe, Voegeli et al, 2005; Farage, Miller, Berardesca et al., 2007; Gray, Bliss, Erner-Seltun et al., 2007).There is some evidence suggesting that a cleanser that matches the pH of the skin and contains moisturisers or humectants may be preferable to soap and water, especially in aged skin (Ersser, Getliffe, Voegeli et al, 2005; Gray, 2007). The pH of cleansing products should be verified before use as many common products have pH outside the recommended range (Farage, Miller, Berardesca et al., 2007). 13.1.3.2 Drying The mechanical and chemical drying of the skin can adversely affect barrier function. A minimal rubbing drying technique, such as patting, may reduce the friction damage caused (Ersser, Getliffe, Voegeli et al, 2005). 13.1.4 Management of incontinence associated dermatitis (IAD) The principles of a structured skin care regimen comprise gentle cleansing, moisturisation, and application of a skin protectant or moisture barrier (Gray, 2007). 13.1.4.1 Mild to moderate incontinence associated dermatitis For mild to moderate IAD, characterised by erythema and tenderness of intact skin, a structured skin care regimen similar to those recommended for prevention should be used, with the addition of a skin protectant. Skin care should be provided following each major incontinence episode, particularly if faecal matter is present. Skin protectant should be used daily or more frequently if the client has high-volume or frequent episodes of incontinence. Combination products are usually recommended, particularly in the residential care setting, as they reduce several steps into a single intervention, maximising time efficiency and encouraging adherence to a structured skin care regimen. These include moisturising cleansers, moisturising skin protectant creams, and disposable washcloths that incorporate cleansers, moisturisers and skin protectants into a single product (Gray, Bliss, Erner-Seltun et al., 2007). 13.1.4.2 Severe incontinence associated dermatitis For severe IAD, associated with denudation of the skin, a structured skin care program combined with regular application of a skin protectant product may provide adequate protection to promote healing in some clients (Gray, Bliss, Erner-Seltun et al., 2007). 96 13. Containment management of urinary incontinence Topical antibiotics and antimicrobials should be used only when an infection has been confirmed (Farage, Miller, Berardesca et al., 2007). 13.1.5 Specific skin care with use of absorbent pads Skin should be kept dry using absorbent incontinence pads (Farage, Miller, Berardesca et al., 2007). Absorbent products may actually increase the tissue interface pressures when soaked, even when used in conjunction with pressure reducing or relieving support surfaces (Gray, Bliss, Erner-Seltun et al., 2007). Wet or soiled garments should be changed promptly, and skin cleansing should follow every incontinent episode. Efforts should be made to prevent further moisture from reaching the skin (Farage, Miller, Berardesca et al., 2007). Barrier ointments should be used to protect the skin from contact with moisture, while at the same time preventing friction from continence pads and bed linens (Farage, Miller, Berardesca et al., 2007). It is important that the barrier cream, ointment or film is suitable for use with incontinence pads. It is recommended that only water based barrier creams are used if pads are to be worn. Oil based creams and talcum powder should be avoided as these clog the pad and affect the absorbency of the pad, allowing urine to sit next to the skin for longer (Whitely, 2008). 13. Containment management of urinary incontinence 97 14. Pharmacological management Link to Section 2 Section 14 has been developed using non-systematic, narrative methodology. 14.1 Outline Pharmacological management of incontinence is used for incontinence resistant to conservative treatment, or as an adjunct to other management strategies. Use of pharmacological agents aims to relieve symptoms, reduce complications of incontinence and improve the quality of life. Successful treatment depends upon the specific cause of the incontinence and correct diagnosis. If incorrectly diagnosed, some treatments may actually worsen the incontinence or cause other problems. It is recommended to treat the most prominent incontinence type and check for effectiveness before using a second agent. Link to Appendix 14 Link to Appendix 14 As the elderly are more sensitive to both the beneficial and adverse effects of medication, appropriate consideration should be given when instituting any medication therapy. Slow titration and monitoring of effect should be followed. Early cessation is standard practice if no benefit is provided or adverse effects are suffered. It is necessary to assess and check for medications that may be contributing to the incontinence. For further information refer to Appendix 14 in this guideline. It should be remembered that ‘medications’ refers to prescription, over-the-counter, (OTC) and complementary medications. Continence clinicians must know their professional roles and responsibilities in relation to pharmacological management. 14.2 Medication reviews Medication reviews should be an integral part of a continence assessment. The Home Medicines Review Program (an Australian government funded service) provides the opportunity for any client, carer or professional to request a medication review. This enables a specially trained pharmacist to visit the client following consent from the client and the general medical practitioner. The review facilitates use of the pharmacist’s special skills and knowledge in supporting and assisting other health professionals, and in contributing to the care of clients by ensuring optimal use of medicines. 14.3 Medications for stress incontinence 14.3.1 Adrenergic agonists There is only weak evidence to suggest that the use of an adrenergic agonist (such as Pseudoephedrine) is better than placebo treatment, and insufficient evidence to assess the effects of adrenergic agonists when compared to or combined with other treatments. Clients using adrenergic agonists may suffer from minor side effects, occasionally leading them to stop treatment. Rare but serious side effects such as cardiac arrhythmias and hypertension have been reported, and these medications are not widely used for managing stress incontinence in Australia (Alhasso, Glazener, Pickard et al., 2005). Link to Section 14.7 14.3.2 Topical oestrogen Topical oestrogens may prevent urinary tract infections and help female clients with chronic voiding dysfunction. Topical oestrogens increase urethral vascularity and thickness, and sensitise alpha adrenergic receptors in bladder neck, both of which theoretically should improve urethral closure. However, recently Weiss found no objective improvement in measured urine loss with oestrogen therapy (Weiss, 2005) while Casper reported that some forms of incontinence showed benefit through oestrogen therapy (Casper, 2006). 98 14. Pharmacological management Good Practice Point Although the amount of oestrogen absorbed may not be significant, clinicians are advised to consider the possible risks associated with the use of topical oestrogen products with each client through reference to manufacturer guidelines, pharmacist advice, and other resources. Adapted from MIMS on-line as cited by Golding (2006). 14.3.3 Duloxetine Duloxetine hydrochloride is a combined norepinephrine and serotonin reuptake inhibitor which increases contraction of urethral sphincters during urine storage. It is the only medication licensed specifically for stress incontinence and is approved for this use in the United Kingdom. In the United States of America, incontinence is a non-FDA labelled indication for duloxetine. Whilst now available in Australia, it is currently only registered by the Therapeutic Goods Administration (TGA) for use in treating depression. The most common side effect is nausea (Weiss, 2005). 14.4 Medications for detrusor overactivity and urge incontinence Link to Section 3.5.1 14.4.1 Oral Oestrogen The most recent evidence suggests that oestrogen treatment increases the risk of new onset incontinence in previously continent women, and worsens existing incontinence (Hendrix, Cochrane, Nygaard et al, 2005; Waetjen, 2006). Therefore, oral oestrogen should not be prescribed for the treatment of stress or urge incontinence in post-menopausal women (Martin & Barbieri, 2008). Hormone therapy for bothersome menopausal symptoms may increase the risk of developing or worsening incontinence, although the absolute risk is small, and appears to be reversible with cessation of the hormone therapy (Waetjen, 2006). Points of Interest The 2005 Women’s Health Initiative study (Hendrix, Cochrane, Nygaard et al., 2005) assessed the effects of menopausal hormone therapy on the incidence and severity of symptoms of urinary incontinence in healthy postmenopausal women. This study included two trials – one examining the effects of oral oestrogen plus progestin (for women who had not had a hysterectomy) and the other trial examining the effects of oral oestrogen alone (for women who previously had a hysterectomy). Over 27,000 women in total were enrolled in the studies. In both trials, oral hormone therapy was associated with an increased incidence of urinary incontinence and worsening symptoms of pre-existing urinary incontinence, and this effect persisted at three years. 14.4.2 Oral anticholinergics (antimuscarinics) Anticholinergics with antimuscarinic effects are among the medications most frequently prescribed for urge incontinence. A systematic Cochrane review (2005) found that treatment with these agents compared with placebo resulted in a 40 percent higher rate of cure or improvement, and an absolute decrease of 0.6 in both incontinent episodes and voids per 24 hours; the rate of dry mouth was more than 2.5 times higher with treatment. The absolute benefit over placebo was small, in part because patients tended to do well whether they received active treatment or placebo. This may have been due to patients’ use of concomitant bladder retraining in some of the underlying studies, whether directed to or not. Thus, although 14. Pharmacological management Link to Table 23 Appendix 14 99 statistically significant, the differences between anticholinergic drugs and placebo were small, apart from the increased rate of dry mouth in patients receiving active treatment. For many of the outcomes studied, the observed difference between anticholinergics and placebo may be of questionable clinical significance (Hay-Smith, Herbison, Ellis et al., 2005). Currently in Australia, medications registered for detrusor overactivity and urinary incontinence include the anticholinergics imipramine, propantheline, oxybutynin and tolterodine, darifenacin and solifenacin. Oxybutynin — Oxybutynin has direct antispasmodic effects and inhibits the action of acetylcholine on smooth muscle. The efficacy of oxybutynin may continue to increase beyond two weeks, suggesting that physicians should avoid escalating the dose too quickly or abandoning therapy too soon. Anticholinergic side effects, especially dry mouth, can limit therapy with oxybutynin. However, side effects can be minimized by slow titration of the drug. The newer slow release patch formulation may assist in reducing side effects to some degree (manufacturers claim). Tolterodine — A meta-analysis found that tolterodine has similar clinical efficacy to oxybutynin, is better tolerated than oxybutynin , but is considerably more expensive than generic oxybutynin (Harvey, Baker, & Wells, 2001). There have been case reports of cognitive side effects mimicking dementia with tolterodine. Darifenacin and Solifenacin — These are newer anticholinergic agents (recently registered in Australia) that are more selective for muscarinic receptors in the bladder. However, they do not have significantly improved efficacy, and patients may still experience adverse effects (eg dry mouth) (Bochner, 2008). Constipation and compensatory fluid intake for a dry mouth may exacerbate urinary incontinence. As a dry mouth predisposes clients to dental caries, regular dental care must be implemented if they are maintained on the drug. The post void residual should be monitored in older patients. Worsening of urinary incontinence can result from subclinical retention that requires lower (not higher) drug dosages (Up-todate, 2006). 14.4.3 Botulinum toxin injections for adults Intravesical botulinum toxin shows promise as a therapy for overactive bladder symptoms, but as yet too little controlled trial data exist on benefits and safety compared with other interventions, or with placebo. At present there is little more than anecdotal evidence in the form of case reports, to support the efficacy of intravesical botulinum toxin; there is not much in the way of substantial, robust safety data. Furthermore, the optimal dose of botulinum toxin for efficacy and safety has not yet been demonstrated. Botulinum toxin injections into the bladder appeared to give few side effects or complications, but there were no long-term follow-up studies (Duthie, Wilson, Herbison et al, 2007). 14.4.4 Common side effects of anticholinergics in the older person Antimuscarinic agents may impair aspects of CNS functioning including memory and sleep, and may lead to hallucinations, confusion or delirium, although serious CNS disturbances are uncommon. Cardiac effects (i.e. tachycardia) are also possible (Hijaz & Rackley, 2005). 100 14. Pharmacological management The most common side effects with these medications are constipation and dry mouth. They may worsen cognitive function and may present an increasing risk of falls. These effects are said to be less problematic with Tolterodine compared to Oxybutynin, although they are still present (Hay-Smith, Herbison, Ellis et al., 2005). Urinary retention can be a common side effect of anticholinergic medications. Imipramine and propantheline may be poor choices in the elderly due to their increased side effect profile. Imipramine is a tricyclic antidepressant that works via anticholinergic effects and by relaxing the dome of the detrusor (Kuteesa & Moore, 2006). It commonly causes drowsiness, especially in the first three weeks, and is therefore often taken at night for nocturnal symptoms. Propantheline is a synthetic analogue of atropine that blocks muscarinic receptors at all sites and therefore may cause significant side effects. However, it is only approximately 60% of the cost of oxybutynin (Kuteesa & Moore, 2006). Link to Appendix 14 14.5 Medications for voiding difficulties Voiding difficulties may be due to Bladder Outlet Obstruction (BOO), poor detrusor contractility, or detrusor sphincter dyssynergia. These are covered in detail in section five of this guideline. Medications indicated for those with voiding difficulties include: • Alpha-adrenergic antagonists • Androgen blockage provided by Finasteride • Saw Palmetto (Serenoa Repens), which provides mild to moderate improvement in urinary symptoms and flow measures in benign prostatic hyperplasia. It shows a similar improvement in urinary symptoms and flow when compared to Finasteride, and is associated with fewer adverse treatment events. While Serenoa Repens may be a useful treatment option, patients and providers need to be aware that there are no guarantees regarding product purity and potency (Wilt, Ishani, & Mac Donald, 2002). Link to Table 10 Section 6.5.2 14.6 Medications for urinary tract infections Urinary tract infections (UTI) cause urge incontinence due to irritation associated with cystitis. They should be treated effectively using appropriate antibiotics and, if recurrent, with appropriate prophylactic use of antibiotic therapy. There is conflicting data on the risk of UTI with oestrogen use. Oral oestrogen does not appear to reduce the frequency of UTI, but intravaginal oestrogen may reduce the risk of recurrence in women with frequent UTIs. The relative efficacy, safety and client tolerability of intravaginal oestrogen have not been directly compared with antimicrobial prophylaxis (Martin & Barbieri, 2008). Post menopausal women who have three or more recurrent UTIs per year, and who do not take oral oestrogen, may benefit from intravaginal oestrogen, particularly when resistance to multiple drugs limits the efficacy of antimicrobial prophylaxis (Martin & Barbieri 2008). A recent Cochrane review of ten studies found some evidence that cranberry juice may decrease the number of symptomatic urinary tract infections over a 12 month period for women although the evidence for elderly men and women is inconclusive. There was poor adherence to the treatment over time. There is evidence that cranberry juice is not effective in people with a neurogenic bladder. The optimum dose, method of administration (eg. juice, tablets or capsules) and length of treatment all require further investigation (Jepson, Mihaljevic & Craig, 2008). 14. Pharmacological management Link to Section 8.7 101 14.7 Medications for vaginal atrophy Topical oestrogen applications (creams, pessaries or vaginal ring) have been reviewed separately all were found to be effective for symptoms of vaginal atrophy. Extremely low doses of unopposed (i.e. without progestin) transdermal oestrogen do not appear to increase the risk of urinary incontinence (Martin & Barbieri, 2008). As a treatment choice, women appeared to favour the oestradiol releasing vaginal ring for ease of use, comfort of product and overall satisfaction. However the oestradiol ring is not currently available in Australia and requires approval prior to treatment (Suckling, Lethaby, & Kennedy, 2003). Some women prefer an oestrogen tablet which adheres to the vaginal wall, while others prefer pessaries (Hirst, 2006). 14.8 Medications for nocturnal diuresis Link to Section 8.11 People with excessive nocturnal diuresis may benefit from use of nasal Desmopressin Acetate (DDAVP) at bedtime (Fonda, DuBeau, Harari et al., 2005). However, the role of DDAVP is very limited, and its significant risks and side effects (for example, heart failure in older people) indicate the need for careful consideration before prescribing (Golding, 2006). 14.9 Medications for overactive bladder A recent Cochrane review has compared the use of anticholinergic drugs with non-drug therapies for overactive bladder syndrome in adults. Although there is limited evidence available, it was found that, during initial treatment, the greatest symptomatic improvement was seen amongst those on a combined therapy of an anticholinergic drug plus bladder training. Anticholinergic drugs showed more symptomatic improvement compared to bladder training alone. There was insufficient evidence to determine if there is any sustained symptomatic improvement after stopping either treatment (Alhasso, McKinlay, Patrick et al., 2006). 102 14. Pharmacological management 15. Indications for referral for further assessment The ‘First Steps’ CPG (MASS 2007), contains a clinical algorithm referral pathway for primary level clinicians which highlights significant factors requiring further investigation. These include: • Red Flags – as outlined in Section 9.1 of the ‘First Steps’ CPG (MASS 2007). Immediate medical assessment is needed if the client has pain, recent unexplained weight loss, recent sudden change in bowel habit, pelvic mass, rectal bleeding, persistent diarrhoea, hematuria, recurrent symptomatic urinary tract infection, history of pelvic surgery or irradiation, major pelvic organ prolapse, or recent prostatectomy surgery. • DIAPPERS – as outlined in Section 9.2 of the ‘First Steps’ CPG (MASS 2007), the ‘DIAPPERS’ mnemonic alerts health professionals to the following conditions: * Delirium – any sign * Infection – positive reagent strip test * Atrophic Vaginitis – reports vaginal dryness, itching, irritation, * Pharmaceuticals * Psychological * Excess urine output * Restricted mobility * Stool impaction. pain with intercourse or signs present on examination If further assessment or treatment is indicated, or if the continence clinician is unsure about appropriate management strategies, the continence clinician can refer to the algorithm shown as figure 6, and to the flowchart shown in figure 7 on the following pages. Additional indicators for further assessment by a general medical practitioner include: • Males: refer for general medical practitioner review if no medical review current • Neurological examination (dermatome testing/reflex testing) equivocal or not normal, or secondary level clinician lacks competency to complete specific assessment • Perineal examination reveals presence of prolapse extending beyond the vaginal introitus, skin lesions, vaginal epithelium that is pale, smooth, shiny or dry, vaginal discharge, vaginal malodour • Rectal examination/observation reveals rectal prolapse, haemorrhoids, presence of stool in addition to a recent history of bowel function suggesting faecal impaction • Polyuria or nocturnal polyuria identified on bladder diary • Poor responses to treatment in women with incontinence in whom voiding difficulties are also present (recommend referral to a medical specialist for urodynamics/ uroflowmetry) • No response to treatment in 12 weeks or inadequate response (client not satisfied) by six months – refer on with view to medical specialist investigations/consideration for surgical interventions • Persistent difficulty reported with catheter insertion – refer to general medical practitioner with view to specialist urology referral. 15. Indications for referral for further assessment Link to Section 4.4 103 6/6/07 2:00:59 PM AL ME TITION E CONTINENCE ADVISOR CONTINENCE PHYSIOTHERAPIST MULTI-DISCIPLINARY TEAM AC INDIVIDUAL R R P STEP 6 - EVALUATE STEP 7 - REVIEW IF REQUIRED RED FLAGS OR DIAPPERS AL STEP 5 - IMPLEMENT STEP 4 - PLAN RED FLAGS OR DIAPPERS STEP 3 - OBJECTIVE ASSESSMENT (MASS 2007) Figure 6: Clinical algorithm: referral pathway for the care of community-dwelling older people with urinary incontinence EXIT IF REQUIRED STEP 2 - SUBJECTIVE ASSESSMENT STEP 1 - BATHE E GEN GENERIC ASSESSMENT OR SELF REFERRAL ENTRY Clinical algorithm: Referral pathway for the care of community-dwelling older people with urinary incontinence Clinical Algorithm.pdf IC R 104 D 15. Indications for referral for further assessment 15. Indications for referral for further assessment 105 • • • • • • • • CLINICAL DIAGNOSIS Delirium Infection Atrophic vaginitis Pharmaceuticals Psychological Excess urine output Reduced mobility Stool impaction and other factors (Abrams, Andersson, Brubaker et al., 2005) INCONTINENCE • Double voiding • Consider cautious addition and trial of antimuscarinic drugs • If PVR>500: catheter decompression then reassess UI associated with: • Pain • Haematuria • Recurrent symptomatic UTI • Pelvic mass • Pelvic irradiation • Pelvic/LUT surgery • Major prolapse (women) • Post prostatectomy (men) • ± Topical oestrogens (women) • Behavioral therapies • Lifestyle interventions Stress UI * If fails, consider need for specialist assessment Continue conservative methods ± Dependent continence ± Contained continence • ± Topical oestrogens (women) • Review medications • Consider trial of alpha-blocker (men) • Treat constipation • Behavioral therapies Sigificant PVR * • Lifestyle interventions Urge UI * • Assess, treat and reassess potentially treatable conditions, including relevant comorbidities and activities of daily living (ADLs) • Assess QoL, desire for Rx, goals of Rx, patient and caregiver preferences • Targeted physical exam including cognition, mobility, neurological • Urinalysis and MSU • Bladder diary • Cough test and PVR (if feasible and if it will change management) Figure 7: Management of urinary incontinence in frail older people ONGOING MANAGEMENT and REASSESSMENT (If Mixed UI, initially treat predominant symptoms) INITIAL MANAGEMENT *These diagnoses may overlap in various combinations, e.g., MIXED UI D I A P P E R S CLINICAL ASSESSMENT HISTORY/SYMPTOM/ASSESSMENT MANAGEMENT OF URINARY INCONTINENCE IN FRAIL OLDER PEOPLE
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