The lack of separation of these two valves results in a single atrioventricular valve. The single atrioventricular valve may not close properly, allowing blood to leak from the ventricular chambers back into the atrial chambers. Therefore, the heart must pump an excessive amount of blood and this may result in an enlargement of the heart.
Surgical repair is required within the first six months of life.
The surgery involves sewing patches over the ASD and VSD and carefully separating the single atrioventricular valve into two valves. All information on Nemours.org , KidsHealth.org , and PedsRef.org is for educational purposes only. The place to get specific medical advice, diagnoses, and treatment is your doctor. All rights reserved. Please familiarize yourself with our Privacy Policy .