Child with a hole in their heart ?

My educated guess (I am NOT a medical professional) is that they'll want to repair the hole. That would involve open heart surgery which is a very major surgery. The good news is its a very established procedure and the doctor who operates on your child will either be very well trained, or under the supervision of one who is. Recovery times are much shorter now, and your son will undoubtedly feel much better after he recovers from the initial surgery trauma. My son had a school friend who had to have a hole repaired in her heart, and she had lots more energy after she recovered from the operation. (It took over a year for full recovery, but she noticed the improved energy within two weeks after the surgery.) It's always scary when a child has to be operated on, but try not to worry too much, this will help him a lot.