Carotid Endarterectomy in Octogenarian: Short- and Midterm Results

Abstract

Randomized controlled trials that have established recommendations for carotid surgery have excluded patients >79 years of age, and in our day to day practice, patients in this age group are becoming more common. We sought to analyze the outcomes of carotid endarterectomy (CEA) in octogenarians, determine the risk factors of morbidity and mortality, and evaluate the midterm survey of these patients. Age was the only selection criteria for inclusion in this study. We compared symptomatic and asymptomatic populations and retrospectively analyzed the CEA results performed in patients ≥80 years of age in each group. We calculated the combined ipsilateral stroke/death for each group. In the 6-year study period (2002-2007), 132 CEAs were performed in 118 octogenarians. The mean age was 83.2 years (range: 80-93), and there were 70 men (59.3%) and 48 women (40.6%). In this study group, 37.9% of patients were symptomatic and 62.1% were asymptomatic; the rate of internal carotid stenosis was 81.6% (standard deviation: ±8.5%). The combined ipsilateral stroke/death rate was 3.79% (4 deaths and 1 stroke): 2% in the symptomatic patients and 4.88% in the asymptomatic patients. No differences were found between the groups' combined ipsilateral stroke/death rate (P > 0.05), but there were significant more patients with coronary artery disease and peripheral artery disease in the asymptomatic patients. A contralateral significant internal carotid stenosis was a risk factor of combined ipsilateral stroke and death (P = 0.024). The mean duration of follow-up was 3.8 ± 2.0 years, and 73% ± 5% of the patients were alive at 3 years. The good immediate results and good probability of survival at 3 years after surgery conveys a real benefit of this surgery in this age group, but patients should be selected on a case by case basis. In our experience, the presence of bilateral lesions should be a significant influence criterion in the preoperative risk assessment. Other evaluation criteria, such as cardiac status, are needed to optimize the selection of asymptomatic patients in particular.