Loyola University Medical Education Network Ventricular Septal Defect

The ventricular septal defect is the most common of all congenital heart anomalies. It may be caused by any of the four malformations:

In the case of a VSD there is a massive left to right shunting of blood and pulmonary hypertension. The absence of the interventricular septum results in a Common Ventricle.

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John A. McNulty
Last Updated: April 14, 1996
Created: September 25, 1995