Hi, my niece have a 2.4 cm hole in the heart...this was already diagnose when she was still a child and doctor advise just take medication as it may close itself in later years.. instead it become big (2.4cm). Doctor advise to go for open heart surgery to cure.. Is there any other less invasive surgery like using the catheter to patch it. Open heart is quite risky as it subject to infection, which may cause death.. Please advise and how much is the estimated cost. She is 26 years old now. Thanks...