How to set up a trans-radial approach programme? variations...

How to set up a trans-radial approach programme?
Patient selection, learning curve, anatomic
variations...
Dr. med. Helmut Heinze
Vivantes Klinikum Neukölln
Rudower Str. 48, 12351 Berlin
Email: [email protected]
If you are an Interventional
Cardiologist - we want you to
join the TRI- Team!
Coronary procedures 2010:
USA: less than 10 % radial
China: more than 60 % radial
Our hospital: 65 % radial
Patient selection
• Get experience with femoral 5F Interventions
• Start with Age 50-75 y
Patient selection
Avoid :
• time critical patients (STEMI)
• repeat access to the same vessel
• patients with renal insufficiency
• Vasculitis, Raynaud syndrome, Carpal tunnel
syndrome
• Thoracic abnormalities
Prefer :
• Obese patients !
• LIMA- grafts: easy with left radial access
Be careful:
• patients with peripheral / aortic disease often have
tortuous subclavian arteries
Preparations and Considerations
Allen Test
forearm angio < 5 % necessary
Easier access radial!
Reasons for Failure of Transradial Approach
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Radial artery puncture failure
Arterial loops or atypical vessels
Radial artery spasm
Tortuous Subclavian Arteries (prevalence ~ 10%)
Atypical coronary ostiums
Not enough backup for intervention with 6F
• Radial access will make your interventions
easier, but sometimes femoral access can easily
overcome inadequate radial problems.
Peripheral and aortic disease
Easy radial access
Difficult femoral access
Access is usually very easy and fast!
2ml Lidocain 2%
not too close to the wrist !
Usually no scalpel needed
Use short (8cm) specially designed transradial sheath
Radial Spasm
after Nitro 200 µg ia
More common in younger women and less sick patients, typical for „ruleouts“
Often sedation is helpful
Difficult artery
Difficult access to Aorta ascendens
Access to Aorta ascendens
LAO ~ 45 °
JR
Deep breath
Sometimes hydrophilic wire helpful
Use 180 cm 0.035 J- wire for easier catheter exchange
Keep the tip of the wire in the aortic root for catheter exchange
Theory
True in ~90% of cases
Access to LCA usually very easy with
JL 3,5 (right) or JL 4.0 (left)
RAO 30° or LAO 45°
Access to RCA usually more challenging
Try ccw rotation
LAO 40- 50°
Real Life
Stop
Check for alternatives
Only for very experienced toughies
Reasons for Failure of Transradial Approach
• Radial artery puncture failure (more often in repeat
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access)
Arterial loops or atypical vessels (don‘t try again, other
side often same problem, ulnar possible?)
Radial artery spasm
Tortuous Subclavian Arteries (prevalence ~ 10%)
• Right or Left
• often possible with more experience, don‘t wait to long
to change access site
Atypical coronary ostiums (have different catheters
available)
Not enough backup for intervention with 6F
• Mother and Child catheters, 5 in 6 Fr, deep
engagement, use EBU- catheters
Guide Catheter Selection
Size:
3.0
3.5
3.75
4.0
Size: 5
Catheter selection (>95% of cases)
RCA LCA SVG
• Diagnostic catheters:
• Guiding catheters:
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JR4, JR5,
AL 0.75, AL 1, AL 2
AR mod, AR2
3DRC
TIG II
JL3.5
JL4
JR5
AL1
MP
JR5
XBRCA ~ RBU
AL 0.75, AL1
Extra Backup 3.5
Extra Backup 3.75
Extra Backup 4.0
JR5
AL1
MP
• Guideliner
Left or Right?
Left
Radialist
Right
Radialist
Left or Right?
Both!
Cardiogenic Shock in Anterior MI
Severe peripheral arteriopathy
Anterior MI, right radial approach
Cardiogenic Shock in Anterior MI
No problems after IABP
Result
Hemostasis
Radistop
TR Band
Similar Procedure Times.
Higher Access Failures With TRA
Hetherington et al. Heart Online, July 2009
Interventional Cardiologists handshake
Don’t call yourseIf
Interventional Cardiologist if
you are not in the TRI- Team!