Novel Left Atrioventricular Valvuloplasty for Atrioventricular Septal Defect.

Ishidou, Motonori; Kanno, Kazuyoshi; Imai, Kenta; Murata, Masaya; Hirose, Keiichi; Nagato, Hisao; Ikai, Akio; Sakamoto, Kisaburo · Ann Thorac Surg · 2019

case_report · Level V

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Abstract

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.

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