Six hundred consecutive carotid endarterectomies with temporary shunt and vein patch angioplasty: early and long-term results

Abstract

Purpose: This retrospective study evaluates the long-term clinical outcome and the survival of 600 consecutive carotid endarterectomies performed with a temporary shunt. All arteriotomies were closed by vein patch angioplasty. Materials and methods: Between November 1989 and November 1998, 600 isolated carotid endarterectomies (CEA) were performed in 540 patients by a uniform surgical technique at the University Clinic of Mont-Godinne. An intraluminal shunt and patch closure were systematically used. The mean age was 68 yr (ranging from 41 to 91 yr), 400 patients were men. The risk factors included hypertension in 73%, smoking history in 60%, coronary artery disease in 51% and hyperlipidemia in 35%. The indications were asymptomatic stenosis in 47%, transient ischemic attack in 40%, vertebrobasilar symptoms in 7% and stroke in 6%. Early results: The combined 30-day stroke and death rate was 0.9%. There were four deaths. The stroke and TIAs rates were 0.2% and 1.5% respectively. The incidence of early carotid occlusion was 0.5%. Cranial or cervical nerve dysfunction was identified in 6.3%. Late results: The median follow-up was 49 months with a range of 2–124 months. Cumulative survival rates at 5 and 10 yr were 92±1% and 89±2% respectively. Thirty-two patients died during long-term follow-up; the death was stroke-related in only three patients. Conclusion: Carotid endarterectomy using an intraluminal shunt and vein patch closure is a safe and effective procedure associated with low morbidity and mortality rates at short and long-term follow-up.