Divided left atrium

Description

A congenital cardiac malformation in which there is a partition that divides the left atrium into a posterosuperior chamber that receives some or all of the pulmonary veins and an antero-inferior chamber that communicates with the left atrial appendage and atrioventricular junction (usually the mitral valve). Additional information: in differentiating 'Divided left atrium' from 'Congenital supravalvar or intravalvar mitral ring', in the latter, the antero-inferior compartment contains only the mitral valvar orifice.

Index terms

Divided left atrium
Cor triatriatum sinister
Cor triatriatum sinistrum

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Left cor triatriatum
left triatrial heart

Exclusions from above levels

http://id.who.int/icd/entity/733825440 – Inborn errors of metabolism

Sibling codes

LA8G.Y – Other specified congenital anomaly of left atrium
LA8G.Z – Congenital anomaly of left atrium, unspecified

Foundation entity

Divided left atrium – http://id.who.int/icd/entity/90967508

Part of: LA8G: Congenital anomaly of left atrium › 20: Developmental anomalies