Haemolysis following repair of subpulmonic ventricular septal defect with pulmonic stenosis.

We observed a case of severe intravascular haemolysis following repair of subpulmonaic ventricular septal defect with pulmonic stenosis. In this case immunological studies and cardiac catheterization demonstrated haemolysis resulting from mechanical factors. When severe haemolysis and progressive anemia following intracardiac repair persist, inadequate intracardiac correction should be suspected and the second surgery is to be considered.