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Prognostic value of global left ventricular strain for conservatively treated patients with symptomatic aortic stenosis.

Abstract：

AIMS:Impaired left ventricular (LV) strain is associated with an increased risk of cardiac events in asymptomatic severe aortic stenosis (AS). We aimed to evaluate the prognostic value of global LV strain in conservatively treated patients with symptomatic AS. METHODS AND RESULTS:This cohort study retrospectively reviewed symptomatic AS patients who were treated conservatively or surgically between July 2007 and April 2010. We measured their global longitudinal strain (GLS) and global circumferential strain (GCS). Clinical events were defined as readmission for heart failure or all-cause death for 2 years. GLS and GCS could predict a worse outcome in the conservatively treated group at cut-offs of =-16.5% (77% sensitivity and 67% specificity) and =-22.2% (92% sensitivity and 83% specificity), respectively. By univariate Cox regression analysis, age, logistic EuroSCORE, aortic valve area, GLS, and GCS were significant predictors. When adjusted for age, logistic EuroSCORE, and aortic valve area, impaired GLS and GCS were independently associated with a higher risk of clinical events. CONCLUSION:In conservatively treated patients with symptomatic AS, impaired GLS and GCS were associated with an increased risk of cardiac events during a 2-year follow-up. Global LV strain may help to define a higher risk subset; therefore, a larger and prospective observation study would be necessary.

journal_name

J Cardiol

journal_title

Journal of cardiology

authors

Lee HF,Hsu LA,Chan YH,Wang CL,Chang CJ,Kuo CT

doi

10.1016/j.jjcc.2013.05.001

subject

Has Abstract

pub_date

2013-11-01 00:00:00

pages

301-6

issue

5

eissn

0914-5087

issn

1876-4738

pii

S0914-5087(13)00162-7

journal_volume

62

pub_type

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