[Angioscopic in-situ arterial bypass for lower extremity revascularization]

Area of Science:

• Vascular Surgery
• Minimally Invasive Techniques
• Arterial Bypass Grafting

Context:

• Limited autogenous vein grafts pose challenges in lower extremity revascularization.
• Arteriovenous fistula and ischemic injury are common complications.
• Intraoperative graft assessment is crucial for successful outcomes.

Purpose:

• To evaluate the efficacy of angioscopy-assisted in-situ arterial bypass for lower extremity revascularization.
• To assess the impact of angioscopy on graft preparation and anastomosis.
• To determine the effect of the biocomposite graft and common ostium technique on graft patency and limb salvage.

Summary:

• Angioscopy facilitates complete valvular ablation and precise ligation of saphenous vein graft tributaries, preventing complications.
• A novel biocomposite graft and common ostium technique optimizes vein graft utilization and distal blood flow.
• The study involved 37 lower extremity revascularizations using angioscopic in-situ arterial bypass.

Impact:

• Achieved a limb salvage rate of 34/37 (91.9%).
• Demonstrated sustained anastomotic patency over a 2-18 month follow-up period.
• Significantly improved ankle and toe pressures postoperatively, indicating successful revascularization.