[A case of quadricuspid aortic valve associated with mitral insufficiency].

We report a case of a 70-year-old woman who had congenital quadricuspid aortic valve. She had undergone Manouguian's operation because of the narrow annulus associated with aortic steno-insufficiency and mitral insufficiency. The aortic valve was found to have 4 equal-sized cusps. The noncoronary cusp was divided into two equal parts. This congenital quadricuspid valve was extremely rare anomaly and we have nerve seen the case which had been corrected surgically by Manouguian's procedure. The aortic valve was replaced by a 23 mm St. Jude Medical prosthesis and the mitral valve was replaced by a 29 mm CarboMedics prosthesis. The postoperative course was uneventful and she is doing well six months after operation.