Normal Heart Vs. Heart with Defect (IMAGE) Johns Hopkins Medicine Caption Graphic comparing a normal heart to one with a typical congenital heart defect where there is a hole in the wall separating the lower two chambers. A Johns Hopkins-led study recommends that children who have surgery to repair defects such as this be monitored to lower their risk of hypertension during adulthood. Credit Public Domain via Wikipedia Commons as released by Mariana Ruiz Villarreal, LadyofHats Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.