[Internal carotid artery surgery using a venous graft]

Area of Science:

• Vascular Surgery
• Cardiovascular Disease

Background:

• Carotid endarterectomy is a common procedure for atheromatous lesions.
• Complications can arise from difficult surgical sites, radiation-induced lesions, or associated conditions like fibromuscular dysplasia.
• Restenosis and occlusion rates after endarterectomy range from 10-50%.

Purpose of the Study:

• To evaluate venous graft bypass as an alternative to carotid endarterectomy.
• To assess the long-term efficacy and safety of venous grafts in carotid artery restoration.

Main Methods:

• Harvesting autologous greater saphenous vein grafts with specific criteria (length, no valves, diameter >4mm, good texture).
• Performing end-to-side distal anastomosis on the internal carotid artery with stump ligation.
• Utilizing techniques like eversion endarterectomy or patch angioplasty for comparison.

Main Results:

• Venous graft bypass demonstrated excellent long-term patency.
• Late restenosis or occlusion rates were less than 5% with venous grafts.
• Alternative techniques like eversion endarterectomy and patch angioplasty can reduce complications.

Conclusions:

• Venous graft bypass is a viable and effective alternative to carotid endarterectomy.
• This technique is particularly beneficial for young patients and women prone to late complications.
• Careful graft selection and surgical technique are crucial for optimal outcomes.