In this video, Dr. Radha Krishnan, Director, Pediatric Cardiologist at Fortis Escorts Heart Institute, New Delhi, will explain the repair of atrial septum defect in this video. He will explain that there are only two ways of closing an ASD.One way of closure is the surgery and the other way is with a device. He will further talk on the criteria which are need to be fulfilled for a device to be suitable for the closure of the hole. Echocardiography is done to analyze the margins around the defect. Also, there are lot of other factors which are taken into consideration for closure of ASD.