Paradoxical low flow and/or low gradient severe aortic stenosis despite preserved left ventricular ejection fraction : implications for diagnosis and treatment

Auteur(s): Dumesnil, Jean G.Pibarot, Philippe; Carabello, Blase
Résumé: Paradoxical low flow, low gradient, severe aortic stenosis (AS) despite preserved ejection fraction is a recently described clinical entity whereby patients with severe AS on the basis of aortic valve area have a lower than expected gradient in relation to generally accepted values. This mode of presentation of severe AS is relatively frequent (up to 35% of cases) and such patients have a cluster of findings, indicating that they are at a more advanced stage of their disease and have a poorer prognosis if treated medically rather than surgically. Yet, a majority of these patients do not undergo surgery likely due to the fact that the reduced gradient is conducive to an underestimation of the severity of the disease and/or of symptoms. The purpose of this article is to review and further analyse the distinguishing characteristics of this entity and to present its implications with regards to currently accepted guidelines for AS severity.
Type de document: Article de recherche
Date de publication: 8 septembre 2009
Date de la mise en libre accès: Accès restreint
Version du document: VoR
Lien permanent: http://hdl.handle.net/20.500.11794/7889
Ce document a été publié dans: European Heart Journal, Vol. 31 (3), 281–289 (2010)
https://doi.org/10.1093/eurheartj/ehp361
European Society of Cardiology
Autre version disponible: 10.1093/eurheartj/ehp361
19737801
Collection :Articles publiés dans des revues avec comité de lecture

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