A Ventral Septal Defect, more commonly known as a ventricular septal defect (VSD), is a hole between the heart’s lower chambers (ventricles). The defect can occur anywhere within the muscle dividing the two sides of the heart.
There are varying types of VSD defects. Smaller defects may close without any treatment, and will not cause any long-term effects. Defects that don’t close on their own can usually be repaired by surgery.