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(Circulation. 1972;46:794.)
© 1972 American Heart Association, Inc.

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Coexistence of Single Ventricle with Atresia of One Atrioventricular Orifice

MANUEL QUERO ¹

¹ From Cardiologia Pediátrica, Madrid, Spain.

A new case of an unusual association of mitral atresia with single left ventricle is reported. The salient anatomic features include: (1) the right atrioventricular valve is atretic; (2) the left atrioventricular valve enters the large ventricle with morphologic characteristics of the left ventricle; and (3) this large ventricle communicates by way of an interventricular communication with a smaller left-sided ventricle, but with the morphologic characteristics of the right ventricle. Guidelines for the recognition of these uncommon malformations are given.

Key Words: Single left ventricle • Mitral ateresia • Double-inlet left ventricle • L-Loop • Atrioventricular orifice atresia

Submitted on January 26, 1972
Accepted on May 3, 1972