Some defects require no treatment. Others may require urgent surgery. Let's look at several in more detail. If the holes are large and a lot of blood is mixed, the baby's skin may be a slight bluish color. Ventricular septal defect is a hole in the wall between the right and left ventricles.
Blood moves from the left ventricle to the right.
This causes the right side of the heart to work harder, sends extra blood to the lungs and can increase blood pressure in the lungs. Small ventricular septal defects may close on their own without treatment. Larger defects may need surgical correction. Atrial septal defect is an opening in the wall between the right and left atrium. The hole allows blood to move from the left atrium to the right.