[A case report of Konno's operation for discrete type subaortic stenosis associated with previous VSD closure and repair of coarctation].

A patient, 1 year and 3 month old boy, underwent Konno's operation for severe discrete type subaortic stenosis, which had developed after the coarctation repair (Subclavian Flap Method) at 15 day old and VSD closure at 21 day old. Konno's operation was performed successfully with SJM 21A and postoperative course was uneventful. The discrete type subaortic stenosis may also develop after VSD closure complicating with coarctation complex. Konno's operation is an acceptable method and stenotic left ventricular outflow tract can be enlarged sufficiently in even young infants. This is the youngest patient treated successfully with Konno's operation in Japan.