Conditions Treated with Recruitment of Borderline Ventricles

Recruitment of borderline ventricles is performed for the following conditions, among others:

  • Borderline hypoplastic right/left heart syndrome (HRHS/HLHS). With these congenital heart defects, the left or right side of the heart is underdeveloped and is too small to handle a normal amount of blood flow.

  • Unbalanced AV canal defect, also known as unbalanced AV septal defect (AVSD). The upper collecting chambers of the heart (the atria) are separated from the bottom pumping chambers of the heart (the ventricles) by two valves, the mitral valve on the left side of the heart and the tricuspid valve on the right side of the heart. With unbalanced AV (atrioventricular) canal defect, the heart did not develop in the normal way before birth, and there is a large hole in the center of the heart with just one valve separating the top chambers from the bottom chambers. In addition, one ventricle is larger than the other.

  • Ventricular imbalance. This occurs when the two ventricles, or pumping chambers, on each side of the heart are not the same size.

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