Fortunately, very well. Most children lead normal lifestyles. Very few restrictions apply. For instance, if they have had surgery through an incision through the middle of the chest, that has split the breast-bone, they are limited from playing rough contact sports for fear of breaking the weak bone. Other than this, VSD-repaired patients have an almost normal life.
Heart disease is quite complex, and it takes years and years of studying it to get a clear picture.
If there's anything more you want to know, or some areas which aren't clear enough, don't hesitate to LET ME KNOW , and I'll try and make it easier to understand. Let me know what you think about it. Learn a little more about heart disease and its treatment.