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  • Title: Endovascular carotid artery stenting and early coronary artery bypass grafting for asymptomatic carotid artery stenosis: long-term outcomes and neurologic events.
    Author: Ranaweera PS, Bigelow BC, Leary MC, de la Torre R, Sellke F, Garcia LA.
    Journal: Catheter Cardiovasc Interv; 2009 Feb 01; 73(2):139-42. PubMed ID: 19156875.
    Abstract:
    BACKGROUND: Optimal management of patients with asymptomatic critical carotid artery stenoses prior to coronary artery bypass grafting (CABG) has no clear consensus. Further, optimal timing for surgical coronary revascularization has not been defined after or with any carotid revascularization. METHODS: We reviewed the data from 2002 to 2007, of all patients in our institution who underwent carotid artery stenting (CAS) for critical carotid artery stenoses, prior to CABG. Twenty patients with critical carotid disease were referred for preoperative carotid intervention prior to CABG. Carotid duplex demonstrated evidence of critical stenoses in all patients. Patients were serially assessed by a stroke neurologist before and after the procedure (immediately, at 24 hr, at 48 hr, immediately following CABG, and at 30 days). We evaluated initial procedural success as well as freedom from periprocedure stroke. RESULTS: Prior to undergoing CABG, 20 patients had stents placed in a single carotid artery for unilateral asymptomatic critical carotid artery stenoses. All the procedures, except one, were performed with distal embolic protection. Patients received aspirin and clopidogrel. There were no strokes or deaths up to a mean follow up of 486 days. The mean time from CAS to CABG performed in the same hospital admission was 6.4 days. Transfusion rates were not excessive despite dual antiplatelet therapy. CONCLUSION: In a real-world setting, endovascular extracranial CAS for asymptomatic carotid artery stenosis by experienced operators, prior to CABG was safe and permitted early coronary revascularization without increased risk of strokes or death in this high-risk cardiovascular patient population.
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