Severity of Aortic Stenosis in Adults
Bonow, RO, Carabello, BA, Chatterjee, K, et al. ACC/AHA 2006 guidelines for the management of patients with valvular heart disease. A report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines. J Am Coll Cardiol 20006; 48:e1.
| Aortic Jet Velocity (m/sec) | Mean Gradient (mmHg) | Valve Area (cm2) | |
| Normal | <1.5 | <5 | 3-4 |
| Mild | <3 | <25 | >1.5 |
| Moderate | 3-4 | 25-40 | 1-1.5 |
| Severe | > 4 | >40 | <1.0 |
| Critical | >5 | --- | <0.75 |