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Eur J Cardiothorac Surg 2001;19:619-626
© 2001 Elsevier Science NL

Should severe monolateral asymptomatic carotid artery stenosis be treated at the time of coronary artery bypass operation?

Department of Cardiac Surgery, Catholic University, Rome, Italy

Received 19 September 2000; received in revised form 21 January 2001; accepted 7 February 2001.

Corresponding author. Cattedra di Cardiochirurgia, Policlinico Universitario Agostino Gemelli, Largo A. Gemelli 8, 00168 Rome, Italy. Tel.: +39-06-305-8181; fax: +39-06-305-8181
e-mail: mgaudino{at}tiscalinet.it

Objective: The optimal treatment of severe monolateral asymptomatic carotid artery stenosis (SMACS) in patients undergoing coronary artery bypass grafting (CABG) is still controversial. Materials and methods: This study is based on the in-hospital and mid-term (>5 years) clinical results of a cohort of 139 consecutive CABG patients with SMACS operated at our Institution between January 1989 and December 1995. In the first 73 patients (no carotid surgery group), the SMACS was left untouched at the time of coronary surgery, whereas in the remaining 66 (carotid endoarterectomy group), the carotid stenosis was treated either immediately before or concomitantly with the CABG procedure (depending on the severity of the anginal symptoms). Results: The overall preoperative characteristics of the patients were comparable. The in-hospital results were similar between the two groups with regard to mortality, stroke and major postoperative complications. However, at mid-term follow-up, significantly more patients of the no carotid surgery group suffered cerebral events (transient or permanent) ipsilateral to the SMACS or the lesion had to be operated on. Conclusions: The concomitant treatment (either staged or simultaneous) of SMACS at the time of CABG does not influence the in-hospital results, but confers significant neurological protection during the years after the operation.

Key Words: Carotid artery • Coronary surgery • Stroke

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