Related Experiment Videos
The fate of bypass grafts to an isolated popliteal artery segment
Insights
Femoropopliteal bypass grafts to isolated popliteal artery segments offer good limb salvage rates (83%) for patients with advanced atherosclerosis. These bypasses provide a viable option for limb salvage when other options are limited.
Area of Science:
- Vascular Surgery
- Reconstructive Surgery
- Atherosclerosis Treatment
Background:
- Femoropopliteal bypass grafting is a key intervention for limb salvage in patients with severe peripheral artery disease.
- The use of an isolated popliteal artery segment as a recipient vessel presents unique challenges and outcomes.
- Understanding the efficacy of these grafts is crucial for optimizing treatment strategies in at-risk populations.
Purpose of the Study:
- To evaluate the long-term patency and limb salvage rates of femoropopliteal bypass grafts to isolated popliteal artery segments.
- To compare the outcomes of these grafts with established results for other infrainguinal bypass configurations.
- To assess the role of graft revision in maintaining patency and limb salvage.
Main Methods:
- Retrospective analysis of 64 femoropopliteal bypass grafts performed between 1967 and 1982 in 55 patients.
- Life table analysis was used to determine graft patency and limb salvage rates at 2 and 5 years.
- Outcomes were compared with historical data for autogenous vein grafts and femoral-tibial/peroneal grafts.
Main Results:
- The 30-day operative mortality was 1.6%, and the 30-day amputation rate was 3.2%.
- The 2-year graft patency rate was 70.6%, and the 5-year patency rate was 60.7%.
- Both 2- and 5-year limb salvage rates were 83%, with successful revision in 6% of grafts.
Conclusions:
- Femoropopliteal bypass to an isolated popliteal artery segment is an appropriate and effective procedure for limb salvage.
- Graft patency and limb salvage rates fall between those of bypasses to popliteal arteries with tibial runoff and femoral-tibial/peroneal grafts.
- Reasonably good outcomes can be anticipated, supporting its use in selected patients with threatened limbs.
Abstract:
From 1967 to 1982, 55 patients underwent 64 femoropopliteal bypass grafts into an isolated popliteal artery segment. Seventy-six percent of these patients had threatened limb loss from advanced atherosclerosis, and 24% had disabling claudication. Forty-five percent of the patients were diabetic. The 30-day operative mortality rate was 1.6%, and the 30-day postoperative amputation rate was 3.2%. Graft potencies were analyzed by the life table method. The 2-year graft patency rate was 70.6%, and the 5-year patency was 60.7%. The 2- and 5-year limb salvage rates were each 83%. With evidence for decreased graft function, four grafts (6%) were successfully revised before failure occurred. Among 10 polytetrafluoroethylene grafts followed up to a maximum of 48 months, there was one early postoperative occlusion, one long-term occlusion, and one early amputation. With respect to patency and limb salvage, the results of isolated popliteal artery segment grafts fall between the 5-year patency and limb salvage rates for autogenous vein grafts to popliteal arteries with at least one tibial vessel runoff (78% patency and 89% limb salvage) and the rates for femoral-tibial/peroneal grafts (5-year patency 56%, limb salvage 69%). An isolated segment is an appropriate recipient vessel for a reconstruction for limb salvage, and reasonably good results can be anticipated.