bypass graft patency
The state of a coronary bypass graft remaining open and functional after surgical placement.
Full Definition
Bypass graft patency refers to the continued openness and functionality of coronary artery bypass grafts following surgical revascularization. Patency rates vary by graft type and time, with arterial grafts generally demonstrating superior long-term patency compared to venous grafts. Assessment involves imaging studies such as coronary angiography, CT angiography, or stress testing. Factors affecting patency include graft selection, surgical technique, target vessel quality, and patient factors such as diabetes and smoking. Documentation should distinguish between early patency (perioperative period) and long-term patency (months to years post-surgery).
Usage
Usage note: Hyphenate compound modifier; specify timeframe when discussing patency rates.
In Context
- "Follow-up angiography demonstrated excellent bypass graft patency at one year." — clinical report
- "The study evaluated factors associated with long-term bypass graft patency." — research abstract