Aortic Valve Replacement for Quadricuspid Aortic Valve Associated With Right Coronary Ostium Anomaly: a Case Report

Abstract Background: Quadricuspid aortic valve is a rare congenital heart disease that may be associated with coronary ostium anomalies. Care should be taken to avoid occluding or compressing the coronary ostium while performing aortic valve replacement.Case presentation: Herein, we report a case of a 59-year-old woman who underwent aortic valve replacement for a quadricuspid aortic valve with severe aortic regurgitation. Intraoperatively, the aortic valve had four cusps of almost equal size and the right coronary artery arose adjacent to one of the commissures. The annular stitches were placed in a non-everting mattress fashion with pledgets on the ventricular side, and stitches near the right coronary ostium were transitioned to the subannular ventricular myocardium to maintain the distance from the ostium. Further, we selected a small prosthesis because oversized prosthetic valve could potentially compress the right coronary ostium.Conclusions: While performing aortic valve replacement for a quadricuspid aortic valve associated with a right coronary ostium anomaly, careful selection of the size of the prosthesis and modification of the annular stitches are essential to prevent obstruction of the coronary ostium.