Single Ventricle Physiology
A cardiac condition where only one functional ventricle is present, requiring staged surgical palliation.
Full Definition
Single ventricle physiology describes a group of complex congenital heart defects characterized by the presence of only one functional ventricle capable of supporting either systemic or pulmonary circulation. These conditions include tricuspid atresia, mitral atresia, and double inlet left ventricle, among others. Patients typically require a series of staged surgical procedures to separate the systemic and pulmonary circulations, ultimately leading to a Fontan circulation. Management involves careful balance of systemic and pulmonary blood flow.
Usage
Usage note: Refers to physiology rather than anatomy; may have two ventricles anatomically but only one functions.
In Context
- "The neonate was diagnosed with single ventricle physiology requiring staged palliation." — Discharge summary
- "Careful monitoring of oxygen saturations is essential in single ventricle physiology." — Clinical guideline