Q) True about suturing technique in vascular anastomosis
a) Anastomosis may not be completely water tight
b) To prevent intimal injury needle should be moved from with in to out
c) 4-0 suture is preferred for aorta
d) Any bio degradable suture which is monofilament can be used
Answer
b
Vessels should always be sewn with the needle moving from within to without on the downstream edge of the vessel to avoid creating an intimal flap and to fix any atherosclerotic plaque.
Tip of the needle should be at right angle to the intima and curve of the needle should be followed
Distal clamp is released first
Non absorbable sutures should be used
2-0 should be used for aorta 4-0 for femoral and 6-0 for popliteal
Only non absorbable monofilament sutures are used in vascular anastomosis
Bailey 27 page 99