bypass graft
Surgical conduit used to reroute blood flow around a blocked or diseased blood vessel, restoring circulation to downstream tissues.
Full Definition
A bypass graft is a surgical procedure and the conduit used to circumvent arterial occlusions or stenoses by creating an alternative pathway for blood flow. The graft material can be autologous (patient's own vessel, such as saphenous vein or internal mammary artery), synthetic (Dacron or PTFE), or biological (processed animal tissue). Common bypass procedures include coronary artery bypass grafts (CABG) for cardiac revascularization and peripheral bypass grafts for limb salvage. The choice of graft material and configuration depends on factors including the anatomical location, expected flow requirements, patient anatomy, and long-term patency considerations.
Usage
Usage note: Specify graft material and anatomical configuration for precision in medical documentation.
In Context
- "A femoral-popliteal bypass graft using reversed saphenous vein was performed for critical limb ischemia." — Operative report
- "The PTFE bypass graft demonstrated excellent patency at six-month follow-up." — Post-operative surveillance note