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Paradoxical LF-LG normal EF3
Classical LF-LG low EF3
Normal LVEF
Normal-flow
High-gradient
Normal LVEF "Paradoxical"
Low-flow
Low-gradient
Low LVEF “Classical”
Low-flow
Low-gradient
Photography is courtesy of Piedmont Atlanta Hospital.
See why a proper echo is vital to diagnosing symptomatic severe aortic stenosis.
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Experts share why it’s important to go beyond gradients when detecting the severity of aortic stenosis.
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View more clinical data
and access procedural resources.
Learn more about determining severity — because AS can’t wait.
Check out expert conversations on the ACC/AHA guidelines.
Otto C, Nishimura R, et al. 2020 ACC/AHA guideline for the management of patients with valvular heart disease. Circulation. 2021;143:e1-e156.
Awtry E, Davidoff, R. Low-flow/Low-gradient aortic stenosis. Circulation. 2011;124:e739-e741.
Clavel M, Burwash I, Pibarot P. Cardiac imaging for assessing low-gradient severe aortic stenosis. J Am Coll Cardiol. 2017;10:185-202.
Thaden J, Nkomo V, Lee K, Oh J. Doppler imaging in aortic stenosis. J Am Soc Echocardiogr. 2015;28:780-85.