Ventricular septal defect overview
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] and Leida Perez, M.D.
Associate Editor-in-Chief: Keri Shafer, M.D. [2]
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Overview
A ventricular septal defect (or VSD) is a defect in the ventricular septum (the wall dividing the left and right ventricles of the heart). The ventricular septum consists of a muscular (inferior) and membranous portion (superior). The membranous portion (which is close to the atrioventricular node) is most commonly affected.[1]
Congential VSDs are collectively the most common congenital heart defect.[2]