[Successful treatment by Konno's operation for congenital aortic stenosis associated with hypoplastic valve ring].

A 47-year-old woman with congenital aortic stenosis associated with hypoplastic aortic valve ring underwent aortic valve replacement by Konno method. We have to be careful preventing residual VSD because the left ventricular muscle was weak in the aged with congenital aortic stenosis. In early postoperative period, we also have to do a careful treatment in case by Konno's operation, particularly in the patient of advanced age. However, she made a satisfactory recovery with adequate size of aortic valve replacement.