Valve surgery recommended at what point if you have aortic stenosis?

See below: The accepted indications for surgical treatment are syncope (fainting) which may indicate critical narrowing. Chest pain which may be due to poor flow to the coronary arteries which start just beyond the aortic valve and shortness of breath which may be due to congestive heart failure are the two others.

Aortic stenosis: Surgery when valve area is critical by measurements on echocardiogram or cath or severe with symptoms of chest pain, shortness of breath, or dizziness or blacking out with exercise.

Symptoms: Symptomatic aortic stenosis or aortic stenosis that has started to affect the heart (enlargement, decrease in ejection fraction) even in the absence of symptoms are indications for surgery.