Severity of Aortic Stenosis in Adults 
Current ACC/AHA ...

Severity of Aortic Stenosis in Adults 

Current ACC/AHA guidelines recommend cut-off values for Doppler-echocardiographic measurements of severe aortic stenosis (AS) as follows: 

aortic valve area (AVA) <1.0 cm2 and/or indexed for body surface area <0.6 cm2/m2, mean gradient >40 mmHg and peak velocity >4.0 m/s (1). 

Similarly, ESC guidelines set the mean transvalvular gradient of >50 mmHg (2) (Table 1). However, inconsistent grading of AS remains a common problem in clinical practice, both in patients with impaired and normal LV functions. A common pattern is the combination of an AVA <1 cm2 with a gradient <40 mmHg.

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Contributed by

Dr. Gerald Diaz
Board Certified Internal Medicine Hospitalist, GrepMed Editor in Chief πŸ‡΅πŸ‡­ πŸ‡ΊπŸ‡Έ - Sign up for an account to like, bookmark and upload images to contribute to our community platform. Follow us on IG: | Twitter:

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