Aortic stenosis stages
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Stages
| STAGE | DEFINITION | VALVE ANATOMY | VALVE HEMODYNAMICS | HEMODYNAMIC CONSEQUENCES | SYMPTOMS |
|---|---|---|---|---|---|
| A | At risk of AS | ❑ Bicuspid valve ❑ Valve sclerosis |
Vmax < 2 m/s | ❑ None | ❑ None |
| B | Progressive AS | ❑ Mild-to-moderate leaflet calcification of valve ❑ Rheumatic valve changes with commissural fusion |
❑ Mild AS: Vmax = 2.0-2.9 m/s or mean ΔP < 20 mmHg ❑ Moderate AS: Vmax = 3.0-3.9 m/s or mean ΔP 20-39 mmHg |
❑ Early LV diastolic dysfunction may be present ❑ Normal LVEF | |
| C1 | Asymptomatic severe AS
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| C2 | Asymptomatic severe AS with LV dysfunction | ||||
| D1 | Symptomatic severe high-gradient AS
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| D2 | Symptomatic severe low-flow/low gradient AS with reduced LVEF | ||||
| D3 | Sympromatic severe low gradient |