Management of severe asymptomatic aortic stenosis (AS): current ACC/AHA guidelines
| Indication | Class |
|---|---|
| 1. Symptomatic patients with severe AS | I |
| 2. Patients with severe AS before undergoing coronary artery bypass surgery | I |
| 3. Patients with severe AS undergoing surgery on the aorta or other heart valves | I |
| 4. Patients with moderate AS undergoing coronary artery bypass surgery or surgery on the aorta or other heart valves | IIa |
| 5. Asymptomatic patients with severe AS and: | |
| ▸ left ventricular (LV) systolic dysfunction | IIa |
| ▸ abnormal response to exercise (for example, hypotension) | IIa |
| ▸ ventricular tachycardia | IIb |
| ▸ pronounced or excessive LV hypertrophy (⩾15 mm) | IIb |
| ▸ valve area <0.6 cm2 | IIb |
| 6. Prevention of sudden death in asymptomatic patients with none of the findings listed under indication 5 | III |