Which of the following is the preferred suture material for vascular anastomosis?
**Core Concept**
Monofilament sutures made from materials like nylon, polypropylene, or polytetrafluoroethylene (PTFE) are preferred for vascular anastomosis due to their minimal tissue reactivity and reduced risk of thrombosis.
**Why the Correct Answer is Right**
The preferred suture material for vascular anastomosis is **monofilament polypropylene**. This is because polypropylene suture is non-reactive, non-absorbable, and has a low coefficient of friction, making it ideal for delicate vascular tissues. The monofilament structure also reduces the risk of suture entanglement and thrombosis formation.
**Why Each Wrong Option is Incorrect**
* **Option A:** Monofilament nylon is not the preferred choice for vascular anastomosis due to its relatively higher coefficient of friction compared to polypropylene.
* **Option B:** Absorbable sutures like vicryl or chromic gut can lead to tissue reaction and promote thrombosis formation in vascular anastomosis.
* **Option D:** Multifilament sutures like silk or cotton are not suitable for vascular anastomosis due to their high coefficient of friction and risk of suture entanglement.
**Clinical Pearl / High-Yield Fact**
When performing vascular anastomosis, it's essential to use a suture material that minimizes tissue reaction and promotes optimal healing. Polypropylene suture is a reliable choice for this delicate procedure.
**Correct Answer:** C.