Balloon valvoplasty

Commissurotomy of heart valves is called valvulotomy, valvotomy, valvuloplasty, or valvoplasty and consists of making one or more incisions at the edges of the commissure formed between the two or three valve leaflets, which relieves the constriction of valvular stenosis (especially mitral valve stenosis). As with many other kinds of surgery, valvular commissurotomy may be done by either open or minimally invasive approaches, and sometimes (but not invariably) the terms surgery and surgical are understood to refer only to the open types, with the minimally invasive types then being referred to as interventional procedures. [Source: Wikipedia ]