Background: The aim of this study is to assess and compare the short- and long-term results of carotid artery stenting (CAS) and redo surgery in patients with restenosis after carotid endarterectomy (CEA).

Methods: From January 1988 to December 2014, 44 consecutive patients were treated for carotid restenosis (CR): 23 redo-CEA (52.3%) and 21 CAS (47.7%). Data from these patients were prospectively collected in a dedicated database. Early results and 3-year end points were analyzed and compared between groups with χ test, Kaplan-Meier curves, and Breslow test.

Results: Demographic characteristics and comorbidity were similar in both groups, except for arterial hypertension and chronic renal insufficiency which were higher in the CAS group. CR was symptomatic in 7 patients in the redo-CEA group (30.4%) and 1 (4.8%) in CAS (P = 0.04). No differences were found in the time period between primary CEA and reintervention, critical carotid stenosis, or contralateral carotid occlusion. Median follow-up was 61.5 months. In the redo-CEA group, 1 patient (4.3%) had a perioperative transient ischemic attack and 3 (13%) experienced cranial nerve injury with complete regression at 30 days. No differences were found between groups in terms of early and long-term mortality, neurologic morbidity, and overall morbidity. The rate of secondary restenosis and freedom from reintervention was similar in both groups during follow-up.

Conclusions: Both CAS and redo-CEA are suitable options for patients with CR. CAS might be the treatment of choice due to the risk of cranial nerve injuries in redo-CEA. When CAS is contraindicated, redo-CEA remains a safe and effective treatment option.

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http://dx.doi.org/10.1016/j.avsg.2016.02.027DOI Listing

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