Q. Explain Aortic Valvuloplasty?
Valvar aortic stenosis accounts for 4-6 per cent of CHD. LV Outflow Tract obstruction eventually leads to LV dysfunction and congestive heart failure.
Congenital AS, unlike PS, progresses over time. Intervention is indicated if the LVOT obstruction is severe (catheter gradient > 65mmHg), or associated symptoms like LV dysfunction, heart failure, angina, syncope or presyncope.
Indications for Balloon Aortic Valvuloplasty
1) Peak systolic pressure gradient at rest of > 65mmHg.
2) Peak systolic pressure gradient at rest of 50-64mmHg with symptoms
3) Low cardiac output regardless of the gradient.