Ebstein's anomaly associated with a definite atrial left to right shunt--case report.

A case with Ebstein's anomaly associated with large left to right atrial shunt was operated upon. The patient did not demonstrate any tricuspid insufficiency in spite of the downward displacement of the septal and posterior leaflets of tricuspid valve. The surgical closure of the atrial septal defect relieved the impending heart failure. The pulmonary congestion disappeared but the cardiomegaly persisted after the operation.