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Late results of extra-anatomic bypass
Insights
Extra-anatomic bypass surgery offers a safe and effective solution for high-risk patients with brachiocephalic and aortoiliac occlusive disease, demonstrating good graft patency and limb salvage rates.
Area of Science:
- Vascular Surgery
- Surgical Outcomes
- Arterial Reconstruction
Background:
- Extra-anatomic bypass procedures are utilized for brachiocephalic and aortoiliac occlusive disease.
- These interventions are often performed in high-risk patients to avoid complex intrathoracic or intra-abdominal reconstructions.
Purpose of the Study:
- To review the clinical progress and outcomes of extra-anatomic bypass procedures.
- To evaluate the safety, effectiveness, and long-term patency of these bypasses in high-risk populations.
Main Methods:
- Retrospective review of 100 consecutive patients undergoing 113 extra-anatomic bypass procedures over 15 years.
- Procedures included brachiocephalic vessel bypass, axillo-femoral bypass, and femorofemoral bypass.
- Analysis of operative mortality, symptomatic improvement, Doppler ankle pressure index, limb salvage, and graft patency using life-table analysis.
Main Results:
- Low operative mortality was achieved despite high-risk patient characteristics.
- Significant symptomatic improvement, augmented Doppler ankle pressure index, and high limb-salvage rates were observed.
- Life-table analysis confirmed prolonged five-year graft patency, though progressive mortality was noted due to comorbidities, particularly after axillo-femoral bypass.
Conclusions:
- Extra-anatomic bypass surgery is a safe and effective option for treating brachiocephalic and aortoiliac occlusive disease in poor-risk patients.
- The procedures provide durable graft patency and successful limb salvage.
- Associated severe comorbidities significantly impact long-term survival, necessitating careful patient selection.
Abstract:
Clinical progress and results were reviewed in 100 consecutive patients who underwent extra-anatomic bypass procedures for brachiocephalic and aortoiliac occlusive disease during the past 15 years. Of 113 procedures in this group, extra-anatomic bypass of the brachiocephalic vessels, axillo-femoral bypass, and femorofemoral bypass were performed. Although these procedures were performed in high-risk patients to avoid intrathoracic and intra-abdominal reconstruction or to circumvent undesirable anatomic areas, a low operative mortality was achieved. Symptomatic improvement, augmented Doppler ankle pressure index, and high limb-salvage rate were noted. Life-table analysis has confirmed prolonged five-year graft patency. The suspected high-risk characteristic in this group was corroborated by high progressive mortality observed particularly after axillo-femoral bypass and was due primarily to the severity of associated diseases. Analysis of the late results of extraanatomic bypass confirms the safety and effectiveness of this procedure in poor-risk patients.