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Updated: Sep 30, 2025

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure
Published on: February 8, 2022
Submitral aneurysm communicating with coronary sinus in a child
Mathilde Méot1, Fanny Bajolle1, Damien Bonnet1,2
1M3C-Necker, Centre de Référence Malformations Cardiaques Congénitales Complexes, M3C, Hôpital Universitaire Necker-Enfants malades, Assistance Publique - Hôpitaux DE Paris, Paris, France.
Abstract:
A newborn girl was referred for a suspected abnormal pulmonary venous return in coronary sinus. Echocardiogram revealed a large outpouching of the left ventricle creating an accessory cardiac chamber that was connected to the left ventricle behind the mural leaflet of the mitral valve, and with the right atrium via the coronary sinus. Ten years later, the orifice between the submitral aneurysm and the left ventricle was closed percutaneously.
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