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  • Title: Carotid stenting versus endarterectomy in patients undergoing reintervention after prior carotid endarterectomy.
    Author: Fokkema M, de Borst GJ, Nolan BW, Lo RC, Cambria RA, Powell RJ, Moll FL, Schermerhorn ML, Vascular Study Group of New England.
    Journal: J Vasc Surg; 2014 Jan; 59(1):8-15.e1-2. PubMed ID: 23972527.
    Abstract:
    BACKGROUND: Outcomes for patients undergoing intervention for restenosis after prior ipsilateral carotid endarterectomy (CEA) in the era of carotid angioplasty and stenting (CAS) are unclear. We compared perioperative results and durability of CAS vs CEA in patients with symptomatic or asymptomatic restenosis after prior CEA and investigated the risk of reintervention compared with primary procedures. METHODS: Patients undergoing CAS and CEA for restenosis between January 2003 and March 2012 were identified within the Vascular Study Group of New England (VSGNE) database. End points included any stroke, death or myocardial infarction (MI) within 30 days, cranial nerve injury at discharge, and restenosis ≥ 70% at 1-year follow-up. Multivariable logistic regression was done to identify whether prior ipsilateral CEA was an independent predictor for adverse outcome. RESULTS: Out of 9305 CEA procedures, 212 patients (2.3%) underwent redo CEA (36% symptomatic). Of 663 CAS procedures, 220 patients (33%) underwent CAS after prior ipsilateral CEA (31% symptomatic). Demographics of patients undergoing redo CEA were comparable to patients undergoing CAS after prior CEA. Stroke/death/MI rates were statistically similar between redo CEA vs CAS after prior CEA in both asymptomatic (4.4% vs 3.3%; P = .8) and symptomatic patients (6.6% vs 5.8%; P = 1.0). No significant difference in restenosis ≥ 70% was identified between redo CEA and CAS after prior CEA (5.2% vs 3.0%; P = .5). Redo CEA vs primary CEA had increased stroke/death/MI rate in both symptomatic (6.6% vs 2.3%; P = .05) and asymptomatic patients 4.4% vs 1.7%; P = .03). Prior ipsilateral CEA was an independent predictor for stroke/death/MI among all patients undergoing CEA (odds ratio, 2.1; 95% confidence interval, 1.3-3.5). No difference in cranial nerve injury was identified between redo CEA and primary CEA (5.2% vs 4.7%; P = .8). CONCLUSIONS: In the VSGNE, CEA and CAS showed statistically equivalent outcomes in asymptomatic and symptomatic patients treated for restenosis after prior ipsilateral CEA. However, regardless of symptom status, the risk of reintervention was increased compared with patients undergoing primary CEA.
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