BPH – From Diagnosis To Treatment Strategies in GP Practice Kashifuddin Qayoom Soomro Assistant Professor Department of Urology Liaquat University of Medical & Health Sciences Jamshoro BPH and prevalence n n The most common benign tumor in men. Half of all men over the age of 60 will develop an enlarged prostate By the time men reach their 70’s and 80’s, 80% will experience urinary symptoms BPH is a very frequent condition in ageing men Prevalence of BPH 90% 50% 20% 0% < 30 years 41-50 years 51-60 years > 80 years What causes BPH? n BPH is part of the natural aging process, like getting gray hair or wearing glasses BPH cannot be prevented n BPH can be treated The lower urinary tract symptoms (LUTS) BPH Bladder Outlet Obstruction (BOO) Impaired detrusor contractility Involuntary bladder contraction • Voiding symptoms - hesitancy - weak stream - prolonged voiding - post voiding dribbling - feeling of incomplete emptying • Decreased flow rates • Post void residual urine • Storage symptoms - urge - frequency - nocturia - urge incontinence BPH/LUTS is largely undertreated Percentage of men who receive medical treatment for their LUTS by LUTS severity 100 80 60 48 45 34 40 26 19 20 11 7 4 2 Age e Se ve re ra t ild M M 50 - 59 od e M er N ev ve re e Se ra t ild od e M er N ev e Se ve re ra t ild od e M M N ev LUTS er 0 60 - 69 Rosen et al. Eur Urol 2003; 44: 637- 49 70 - 79 The Diagnosis of BPH The patient’s initial evaluation The basic evalution should be done on every patient presenting to a health care provider with LUTS: Medical history Assessment of symptoms and bother Physical examination (DRE) Urinalysis Serum Prostate-Specific Antigen (PSA)* Frequency-Volume Chart (to differentiate between nocturia and polyuria) *not in all patients The medical history of the patient Nature and duration of LUTS Previous surgical procedures General health issues, sexual function history Medications currently taken by the patient The patient’s fitness for possible surgical procedures or other treatments The International Prostate Symptom Score (IPSS) The I-PSS is based on the answers to 7 questions concerning urinary symptoms. Each question is assigned points from 0 to 5 indicating increasing severity. The total score can therefore range from 0 to 35 (asymptomatic to severely symptomatic). Mild Moderate Severe 0-7 8-19 20-35 The International Prostate Symptom Score (1) Not at all Less than 1 time in 5 Less than half in the time About half the time More than half the time Almost always 0 1 2 3 4 5 0 1 2 3 4 5 0 1 2 3 4 5 Patient name: Date 1. Incomplete emptying Over the past month, how often have you had a sensation of not emptying your bladder completely after you finish urinating? 2. Frequency Over the past month, how often have you had to urinate again less than two hours after you finished urinating? 3. Intermittency Over the past month, how often have you found you stopped and started again several times when you urinated? The International Prostate Symptom Score (2) Patient name: Date Not at all Less than 1 time in 5 Less than half in the time About half the time More than half the time Almost always 0 1 2 3 4 5 0 1 2 3 4 5 Over the past month, how often have you had to push or strain to begin to urinate? 0 1 2 3 4 5 7. Nocturia 0 1 2 3 4 5 4. Urgency Over the past month, how often have you found it difficult to postpone urination? 5. Weak stream Over the pas month, how often have you had a weak urinary stream? 6. Straining Over the past month, how many times did you most typically get up to urinate from the time you went to bed until the time you got up in the morning? The bother score (IPSS 8th question) Patient name: Date 1. If you were to spend the rest of your life with your urinary condition just the way it is now, how would you feel about that? Delighted Pleased Mostly satisfied 0 1 2 Mixed about equally satisfied and dissatisfied 3 Unhappy Terrible 4 5 BOTHER SCORE (BS) = Disease specific quality of life and sexual function No recommended questionnaire in routine practice Sexual function questionnaires used exclusively in clinical trials (IIEF, DANPSSsex, BSFI, MSHQ…) The physical examination 1. Abdominal examination rule out other possible urinary or rectal conditions 2. Digital Rectal Examination (DRE) fundamental method for assessing the shape and the volume of the prostate Urinalysis Standard examination for the detection of: - Haematuria, - Proteinuria, - Pyuria, 4-5% of men with microscopic haematuria will be found to have a cancer or other urological disease within the first 3 years following the test. Serum Prostate-Specific Antigen (PSA) Measurement recommended for patients with at least 10-year life expectancy and for whom knowledge of the presence of prostate cancer would change management PSA is also a proxy of prostate size but its variability is high. Recent studies suggest that it may be used to predict the risk of AUR and BPH-related surgery. Frequency - volume chart Measurement useful when nocturia is the predominant symptom To identify patients with nocturnal polyuria excessive fluid intake BPH Treatments Treatment objectives 1. Provide rapid and sustained relief of symptoms. 2. Act on the course of the disease by preventing long-term complications. 3. Respect patients’ Quality of Life and sexual function. The BPH patient is basically offered 3 treatment options: Surgery Watchful Waiting Medical Treatment Definition of watchful waiting The patient is instructed on behavioural techniques to reduce symptoms (reduction of fluid intake at bedtime, reduction of alcohol and caffeine consumption…). The patient’s symptoms and clinical course should be monitored, usually annually. Indications of watchful waiting Uncomplicated BPH Symptoms not bothersome (usually IPSS ≤7) Symptoms significantly bothersome but after being informed of various treatment options and their consequences, the patient chooses watchful waiting Indications of medical treatment Uncomplicated BPH Symptoms are bothersome (usually IPSS>7) and after being informed of various treatment options and their consequences, the patient chooses medical treatment There are 2 pharmacological classes used in BPH 1-blockers 5-reductase inhibitors The 2 components of BOO Static Component Normal Dynamic Component Hyperplastic Increase in prostate bulk Increase in smooth muscle tone 5-reductase inhibitors act on the static component of BOO By inhibiting the production of DHT, they are expected to reduce the size of the prostate. But … Delayed Need 6 to 12 months to significantly improve LUTS Less onset of action effective than α1-blockade on LUTS Improve IPSS of 3 to 4 points More effective for enlarged prostates (> 40g) 1-receptors are abundant in the bladder neck, prostate and urethra They are sparse in the bladder body 1-blockers act on the dynamic component of BOO 1-blockers are expected to reduce the sympathetic tone of the prostate and the urethra. 1-blockers may have local but also systemic effects URINARY TRACT EFFECT Prostate Urethra Bladder Neck Bladder Outflow resistance Flow Rates Voiding Symptoms Residual Urine Bladder Instability Filling Symptoms SYSTEMIC EFFECT Blood vessels Blood Pressure Postural Hypotension Dizziness Uroselectivity is the capacity to achieve more local than systemic effects Uroselective (new generation) 1-blockers mainly effective on the lower urinary tract Non-uroselective (old generation) 1-blockers primarily developed for the treatment of hypertension New generation (uroselective) 1-blockers Terazosin (HYTRIN) Doxazosin Alfuzosin Tamsulosin Recent molecules Few cardiovascular & CNS side effects Benefits of 1-blockers in BPH Rapid onset of action From the first dose on peak flow rate for terazosin ( Hytrin ), alfuzosin1 and tamsulosin2, From the first days on LUTS Best monotherapy for relief of LUTS3 Improvement of IPSS of 4 to 6 points Effective irrespective of prostate size Improve quality of life and respect sexual function 1Marks et al. Urology 2003, 62, 888-893 Urology 1998, 51, 892-900 3AUA Practice Guidelines Committee, J.Urol 2003, 170, 530-547 2Lepor Benefits of 1-blockers in BPH Facilitate catheter removal with return to normal voiding in men with AUR1 Reduce BPH progression: 1McNeill Terazosin ( Hytrin ), Alfuzosin and doxazosin do not prevent the occurrence of AUR2-3. However, Terazosin ( Hytrin ) alfuzosin and doxazosin significantly reduce deterioration of LUTS compared with placebo2-3. et al. Urology 2005, 65, 83-90 et al. NEJM 2003, 349, 2387-98 3Roehrborn et al., BJU Int 2006, 97, 734-741 2McConnell Complicated BPH Bladder stones Recurrent haematuria Acute Urinary Retentions Damage Urinary to kidneys tract infections Surgical Treatments Open prostatectomy Transurethral Resection of the Prostate (TURP) Transurethral Incision of the Prostate (TUIP) Transurethral Microwave Thermotherapy (TUMT) Transurethral vaporization of the prostate (TUVP) Transurethral needle ablation of the prostate (TUNA) CONCLUSION Every male > 50 yrs of age should be evaluated To exclude possibility of Ca prostate To exclude complication resulting from BPH To improve the quality of life of patients having LUTS with medical therapy Thanks
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