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Eur J Cardiothorac Surg 2003;24:535-540
© 2003 Elsevier Science NL

Management of mild to moderate aortic valve disease during coronary artery bypass grafting

Department of Cardiac Surgery, Royal Victoria Hospital, Belfast, UK

Received 20 September 2002; received in revised form 10 May 2003; accepted 18 May 2003.

^* Corresponding author. Tel.: +44-2890230415
e-mail: alsir{at}hotmail.com

Objective: The long term survival of patients with mild to moderate aortic valve disease who do not have valve replacement at the time of coronary artery bypass grafting (CABG) is unknown. Therefore we have reviewed our experience with such patients. Methods: We reviewed the medical records of consecutive patients between June 1978 and December 1996, and identified 40 patients with mild to moderate aortic valve disease, who underwent CABG, without valve replacement (study group). Mean preoperative aortic gradient was 34 mmHg and mean intraoperative gradient 20 mmHg. Eleven patients underwent valve inspection, and an equal number, underwent valve repair. The records of 61 other patients with severe aortic valve disease, who underwent concomitant aortic valve replacement (AVR) and CABG (control group), were also reviewed. Results: Survival was significantly better in the control group. Eleven patients (27.5%) in the study group underwent reoperation for AVR, with no operative mortality. Multivariate analysis confirmed valve replacement at initial CABG to be the only predictor of survival (ß=0.586,P=0.038) Preoperative gradient <40 mmHg, intraoperative gradient <20 mmHg, age over 70, sex, aortic stenosis and valve pathology did not predict survival in the study group. Conclusion: Patients with mild to moderate aortic valve disease undergoing coronary artery bypass grafting may be best served by valve replacement, rather than repair, inspection or no procedure.

Key Words: Mild aortic valve disease • Coronary bypass surgery

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