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Updated: Jun 22, 2026

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure
Published on: February 8, 2022
Biventricular repair in unbalanced atrioventricular septal defect
Edmar Atik1, Patrícia O Marques, Rogério A Miranda
1Hospital Sírio Libanês de São Paulo, São Paulo, SP, Brazil. eatik@cardiol.br
Abstract:
We present the case of a 2.5 year-old child with unbalanced atrioventricular septal defect due to a small left ventricle (LV) (mitral annulus of 10mm and a 0.4 ratio in relation to the tricuspid annulus, LVDD: 17 mm, LV Vd2: 15 ml/m(2) and LV/RV long-axis ratio of 0.71); he had a favorable outcome after biventricular surgical repair. Normal LV development was observed three months after the operation (mitral annulus of 22 mm, with a 0.84 ratio in relation to the tricuspid annulus, and LVDD of 30 mm). Current parameters for utilization of the hypoplastic ventricle are discussed.
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