Question: what does it mean when a baby is born with a hole in its heart?
Answer: Ventricular septal defect (VSD) is a gap or defect in the septum between the heart's two lower chambers (ventricles). The septum is a wall that separates the heart's left and right side. Septal defects are sometimes called a 'hole' in the heart. It is the most common heart problem that babies are born with.