Single center experience on eversion versus standard carotid endarterectomy: a prospective non-randomized study

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Abstract
Background and purpose: The prospective studies that have compared the outcomes of eversion and standard longitudinal carotid endarcterectomy (CEA) have been few and small and available data to reach definitive conclusions are still scarce. This prospective, non-randomized study sought to compare eversion and standard CEA for early and late mortality and morbidity and the incidence of late restenosis. Methods: Between 1992 and 1997, we performed 2806 CEAs in 2469 patients (2124 eversion CEAs in 1859 patients and 682 standard CEAs in 610 patients). All patients underwent preoperative neurological examination and cervical duplex scanning. Patients were followed up by neurological evaluation and duplex scanning at 1 and 6 months after CEA, and yearly afterwards. Results: Demographics and neurologic inidications for CEA were similar in both groups. Mean clamping time was shorter in the eversion CEA group (13.5±6.1 vs 19.9±19.1 min, PP=0.037), as well as total cardiovascular mortality (16/2124 vs 12/682, P=0.038). Early carotid occlusion was more frequent in standard CEA group (12/2124 vs 11/682, P=0.017), as well as total early morbidity (112/2124 vs 53/682, PP=0.006). Conclusions: Our data indicate that eversion CEA as compared to standard CEA technique is associated with lower total cardiovascular perioperative mortality and mortality due to major stroke, shorter clamping time, lower early occlusion rate, and lower late restenosis rate.

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