Mitral Stenosis and Aortic Atresia—A Risk Factor for Mortality After the Modified Norwood Operation in Hypoplastic Left Heart Syndrome [1]
The impact of combined mitral stenosis and aortic atresia on outcomes of Norwood procedures for hypoplastic left heart syndrome was examined in a single institution. The incidence among 74 operated patients was 19%. Mortality for affected patients was 29% vs 7% for the other patients. The mechanism of mortality appeared to be myocardial ischemia. Preoperative angiography did not assist in risk-stratifying patients.