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Updated: Jan 31, 2026

Biaxial Mechanical Characterizations of Atrioventricular Heart Valves
Published on: April 9, 2019
Novel Left Atrioventricular Valvuloplasty for Atrioventricular Septal Defect
Motonori Ishidou1, Kazuyoshi Kanno1, Kenta Imai1
1Department of Cardiovascular Surgery, Mt. Fuji Shizuoka Children's Hospital, Shizuoka City, Japan.
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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