Novel Left Atrioventricular Valvuloplasty for Atrioventricular Septal Defect

摘要

An infant boy with 21 trisomy was diagnosed with complete atrioventricular septal defect-Rastelli type A with parachute left atrioventricular valve and absent left mural leaflet. Biventricular repair was difficult in infancy because the left ventricular volume and left atrioventricular valve annulus were too small. After 2 pulmonary artery bandings, the left atrioventricular valve annulus increased to 85 of normal mitral valve, and the left ventricular end-diastolic volume increased to 98 of normal. We report a successful instance of complete atrioventricular septal defect that achieved biventricular repair via novel left atrioventricular valvuloplasty for parachute left atrioventricular valve and absent left mural leaflet. (C) 2019 by The Society of Thoracic Surgeons