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J Interv Cardiol. 2013 Apr;26(2):183-94. doi: 10.1111/joic.12004. Epub 2012 Dec 30.

Aortic valve stenosis: to the gradient and beyond--the mismatch between area and gradient severity.

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1
Department of Cardiology, William Beaumont Hospital, Royal Oak, Michigan 48073, USA.

Abstract

The clinical severity of aortic stenosis (AS) is based largely on symptoms. However, AS severity is primarily determined by estimating the aortic valve area (AVA) and pressure gradients (ΔP). Conditions may arise in which there is a mismatch in severity between AVA and ΔP determinations secondary to errors in measurement and/or assumption, alterations of flow, or variations in the magnitude of pressure recovery. The cause of discrepancy between area and gradient determinations must be deciphered so as to best counsel patients on the most ideal treatment strategy.

PMID:
23278313
DOI:
10.1111/joic.12004
[Indexed for MEDLINE]
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