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[Autologous vein vs. human umbilical vein for femoropopliteal bypass]
T Flørenes1, W Zasada, J Pillgram-Larsen
1Thoraxkirurgisk avdeling, Ullevål sykehus, Oslo.
Insights
Human umbilical vein offers a satisfactory alternative for below-knee femoropopliteal bypass surgery when saphenous veins are unavailable. This vascular graft shows comparable patency rates with lower early mortality and fewer complications than saphenous vein grafts.
Area of Science:
- Vascular Surgery
- Biomaterials Science
- Regenerative Medicine
Background:
- Femoropopliteal bypass surgery is crucial for treating peripheral artery disease.
- Saphenous vein grafts are a common choice, but availability and complications can be issues.
- Alternative graft materials are needed to improve patient outcomes.
Purpose of the Study:
- To compare the efficacy and safety of modified human umbilical vein (HUV) grafts versus reversed saphenous vein (SV) grafts for below-knee femoropopliteal bypass.
- To evaluate patency rates, early mortality, and complication rates between the two graft types.
- To assess the long-term durability and potential complications, such as aneurysm formation, with HUV grafts.
Main Methods:
- A comparative study involving 81 patients receiving reversed SV grafts and 74 patients receiving modified HUV grafts for below-knee femoropopliteal bypass.
- Patient groups were matched for indications, comorbidities, and distal arterial run-off.
- Key outcomes measured included cumulative patency rates, early mortality, wound complications, and aneurysm formation.
Main Results:
- Cumulative patency rates were nearly identical between the HUV and SV groups.
- The SV group experienced higher early mortality and a greater incidence of wound complications compared to the HUV group.
- No significant aneurysm formation was observed in the HUV grafts during this series.
Conclusions:
- Modified human umbilical vein grafts are a highly satisfactory alternative for below-knee femoropopliteal bypass when saphenous veins are not suitable.
- HUV grafts may offer advantages in reducing operative time and trauma, making them a viable option in selected cases.
- The use of HUV grafts is a safe and effective strategy, demonstrating comparable patency with improved early safety profiles.
Abstract:
Below knee femoropopliteal bypass was performed with reversed saphenous vein in 81 cases and with modified human umbilical vein in 74. The two groups were comparable as regards indications, coexisting disease and distal run-off. The cumulated patency rates were almost identical in the two groups, but early mortality and wound complications were higher in the saphenous vein group. Aneurysm formation in the umbilical veins was not a problem in this series. It is concluded that human umbilical vein is a very satisfactory bypass alternative when the saphenous vein is not available. In selected cases it may also be justifiable to use it in order to keep operation time and trauma at a minimum.