Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Comment
. 2018 Jul 21;39(28):2656-2658.
doi: 10.1093/eurheartj/ehy224.

Evaluating the severity of aortic stenosis: a re-look at our current 'gold standard' measurements

Yogesh N V Reddy  1 , Rick A Nishimura  1
Affiliations
Comment

Evaluating the severity of aortic stenosis: a re-look at our current 'gold standard' measurements

Yogesh N V Reddy et al. Eur Heart J. .
No abstract available

PubMed Disclaimer

Figures

Take home figure
Take home figure
In patients with clinical concern for severe AS, the gradient must be measured; if high, this confirms severe AS. If the gradient is low, the AVA should be evaluated, but interpreted with caution given its greater variability and flow dependence. Then, with a low gradient, if the AVA calculates small, valve stress testing using dobutamine, nitroprusside, or exercise should be performed to differentiate pseudo-severe from severe AS. Even if the AVA calculates large, further testing may still be warranted if clinical suspicion is high.
None
See this image and copyright information in PMC

Comment on

References

    1. Gorlin R, Gorlin SG.. Hydraulic formula for calculation of the area of the stenotic mitral valve, other cardiac valves, and central circulatory shunts. I. Am Heart J 1951;41:1–29. - PubMed
    1. Oh JK, Taliercio CP, Holmes DR Jr., Reeder GS, Bailey KR, Seward JB, Tajik AJ.. Prediction of the severity of aortic stenosis by Doppler aortic valve area determination: prospective Doppler–catheterization correlation in 100 patients. J Am Coll Cardiol 1988;11:1227–1234. - PubMed
    1. Nishimura RA, Carabello BA.. Hemodynamics in the cardiac catheterization laboratory of the 21st century. Circulation 2012;125:2138–2150. - PubMed
    1. Cannon SR, Richards KL, Crawford M.. Hydraulic estimation of stenotic orifice area: a correction of the Gorlin formula. Circulation 1985;71:1170–1178. - PubMed
    1. Ford LE, Feldman T, Chiu YC, Carroll JD.. Hemodynamic resistance as a measure of functional impairment in aortic valvular stenosis. Circ Res 1990;66:1–7. - PubMed

Publication types