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Long-term results of reconstructive surgery for aorto-iliac arterial occlusive lesions
Insights
Synthetic bypasses offer superior long-term patency for aorto-iliac occlusive disease. Treating associated femoro-popliteal lesions significantly improves outcomes, highlighting the importance of comprehensive arterial reconstruction.
Area of Science:
- Vascular Surgery
- Cardiovascular Research
- Surgical Outcomes Analysis
Background:
- Aorto-iliac arterial occlusive lesions significantly impact patient health.
- Reconstructive surgery is a primary treatment modality.
- Long-term patency rates of different surgical approaches require evaluation.
Purpose of the Study:
- To compare the long-term patency rates of various surgical reconstructions for aorto-iliac occlusive disease.
- To assess the impact of treating associated femoro-popliteal occlusive lesions on bypass graft patency.
- To identify factors influencing successful long-term outcomes in arterial reconstruction.
Main Methods:
- Retrospective review of 215 arterial reconstructions in 156 patients.
- Analysis of cumulative patency rates for Dacron synthetic bypass prostheses, blunt endarterectomies, and axillo-femoral bypasses.
- Comparison of patency rates based on the presence and treatment of associated femoro-popliteal occlusive lesions.
Main Results:
- At 13 years, Dacron synthetic bypasses showed a 71.6% patency rate.
- Bypasses had significantly higher patency when peripheral arteries were not involved (85.1% at 13 years).
- Treating associated femoro-popliteal lesions improved patency (53.2% at 12 years) compared to untreated lesions (39.3% at 7 years).
Conclusions:
- Dacron synthetic bypasses provide durable long-term patency for aorto-iliac occlusive disease.
- Simultaneous treatment of femoro-popliteal occlusive lesions is crucial for optimizing long-term graft survival.
- Comprehensive surgical management addressing distal outflow significantly enhances reconstructive success.
Abstract:
We report a review of 215 reconstructions for aorto-iliac arterial occlusive lesions, involving 156 patients. At 13 years, the cumulative patency rate of 158 aorto-femoral or aorto-iliac dacron synthetic bypass prostheses was 71.6 per cent as compared to 52.7 per cent at 5 years for 22 blunt endarterectomies and 47.4 per cent at 6 years for 35 axillo-femoral bypass prostheses. Of the 158 synthetic bypass prostheses, the cumulative patency rate at 13 years was 85.1 per cent in cases with no occlusive involvement of the peripheral arteries, significantly higher (p less than 0.03) than the 39.3 per cent patency rate at 7 years in cases in which associated femoro-popliteal occlusive lesions were not treated. At 12 years, the patency rate was 53.2 per cent in cases in which associated femoro-popliteal occlusive lesions were treated during the same reconstructive intervention, i.e. markedly higher (p less than 0.08) than in patients in whom the degree of outflow in the distal vessels was poor. Our findings indicated that, in order to achieve a satisfactory long-term patency rate, it is important to treat associated occulusive lesions in the femoro-popliteal arteries.