Heart conditions: Congenital Learning Hub

Single ventricle anomalies

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Learn about single ventricle anomalies. This term refers to a group of severe conditions in which only one ventricle is of adequate size, such as hypoplastic left heart syndrome (HLHS).

Key points

  • Surgery for single ventricle anomalies depends on the type of defect.

Single ventricle anomalies refer to a group of severe conditions in which only one ventricle is of adequate size, such as hypoplastic left heart syndrome (HLHS).

This condition includes, for example, tricuspid atresia and HLHS. In some cases, the single ventricle has to pump the blood to both the body and the lungs.

Surgical treatment depends on the type of defect.


Last updated: December 4th 2009