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The Annals of Thoracic Surgery, Vol 45, 603-609, Copyright © 1988 by The Society of Thoracic Surgeons

ARTICLES

Early and late results in patients with carotid disease undergoing myocardial revascularization

RD Schultz, AV Sterpetti and RJ Feldhaus
Department of Surgery, Creighton University School of Medicine, Omaha, NE 68131.

A ten-year review of 1,360 patients undergoing coronary artery bypass grafting (CABG) by the same surgeon was undertaken. Sixty-two patients with symptoms of coronary artery insufficiency underwent carotid endarterectomy prior to or at the time of CABG (Group I). Ninety-seven patients had asymptomatic carotid bruits but did not undergo carotid endarterectomy (Group II). Sixty of these patients were studied by ultrasonic duplex scanning or ocular pneumoplethysmography or both, and hemodynamically significant stenosis was detected in 50 (Group IIa). Group III included 80 patients without carotid artery disease matched with Group II for sex, age, and clinical status. Group IV consisted of 200 patients without carotid artery disease randomly selected from our series. Follow-up ranged from 3 to 120 months (median, 41 months). In patients with proven carotid artery disease (Groups I and IIa), operative mortality was greater than in the patients randomly selected (Group IV) (p less than 0.05) but similar to that in the matched Group III. Late neurological deficits were greater in patients with carotid disease not undergoing carotid endarterectomy (p less than 0.01). Patients with carotid artery disease had lower survival than Group IV patients (p less than 0.01) but similar survival to that in the matched Group III. This study suggests that (1) asymptomatic patients with carotid artery disease who undergo CABG are not at increased risk of perioperative stroke; (2) these same patients are at increased risk of late neurological deficit; and (3) carotid artery disease is an indirect sign of severe associated disease and therefore is associated with increased operative mortality and decreased life expectancy.

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