Balloon dilatation is a generic term, which refers to inserting a balloon in a narrowed orifice or area and then dilating the balloon with the view of opening up the narrowed area. This is a common technique and has varied applications. It may be used for the coronary arteries, where it is called PTCA or Stenting or it may be used for opening a valve of the heart (Balloon Mitral Valvotomy / Aortic Valvotomy) or it may be used for opening narrowed ducts in the gastro intestinal tract or strictures in the food pipe or urethra etc.