Patch augmentation of small ascending aorta during stage I procedure reduces the risk of morbidity and mortality.

Objectives: Hypoplastic left heart syndrome (HLHS) with aortic atresia (AA) patients are prone to coronary insufficiency due to a small ascending aorta. Prophylactic patch augmentation of the small ascending aorta during the stage I procedure (S1P) may reduce the risk of coronary insufficiency as marked by ventricular dysfunction, need for extracorporeal membrane oxygenator (ECMO) support or mortality.

Methods: Retrospective analysis of patients with HLHS with AA who underwent an S1P was completed.