A ventricular septal defect (VSD) is a hole in the septum, which is the wall separating the two lower chambers of the heart. In many cases, the hole closes on its own. A ventricular septal defect is a ...

The septum of the heart is a wall of tissue that separates the left and right sides of the heart and enables blood to flow as it should. It consists of the atrial septum and the ventricular septum.

SINCE the advent of open-heart surgery ventricular septal defects have become a surgically correctable anomaly. Surgeons, in their understandable enthusiasm, have recommended early repair of these ...