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Archives of cardiovascular diseases. Supplements v.10 no.2, 2018년, pp.196 - 197   SCOPUS
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Left ventricular global longitudinal strain across the spectrum of heart failure stages and its prevalence, correlates and prognostic relevance in heart failure with preserved ejection fraction

Roy, C.    (Corresponding author.  ); Slimani, A.   De Meester, C.   Amzulescu, M.   Pasquet, A.   Vancraeynest, D.   Vanoverschelde, J.L.   Beauloye, C.   Gerber, B.   Pouleur, A.C.  
  • 초록  

    Background LV global longitudinal strain (GLS) is significantly altered in HFpEF and is a powerful predictor of outcome according to a recent meta-analysis. Aim We sought to determine the evolution of GLS across the spectrum of AHA HF stages and to analyze the correlation of GLS with other clinical, biological and imaging variables and its prognostic value in HFpEF. Methods GLS was assessed by 2D speckle-tracking echocardiography in 172 patients with HFpEF stage C (78±10 yrs, 38%men), 22 stage B (73±10 yrs, 32%men), 56 stage A (63±16 yrs, 52% men) and 20 healthy volunteers (38±12 yrs, 55% men). Impaired GLS was defined as −16.6%, corresponding to 2 SD below the mean value of age and sex matched controls. All patients underwent 2D echo and cMR. Patients were followed up for a composite outcome of mortality and first HF hospitalization. Results Mean GLS was −20.1±1.0%, −19.8±1.6%, −19.1±2.6% and −16.6±3.0% in volunteers, stage A, stage B and stage C respectively ( P for trend P = 0.002), higher sST2 ( P = 0.023), higher incidence of AF (55% vs. 36%, P = 0.014), lower LVEF ( P P = 0.041) and impaired RV systolic function (lower FAC, P = 0.002; lower TAPSE, P P P = 0.005) and NTproBNP (OR 1.91 [1.26–2.88], P = 0.003) were associated with impaired GLS in HFpEF stage C, even after adjustment for other variables. During a mean follow up of 19±9months, 85 patients (49%) reached the combined endpoint. In univariate Cox analysis, GLS was not associated with outcome. Conclusion There is a continuum in GLS impairment across the spectrum of AHA HF stages confirming the role of a subclinical myocardial dysfunction in HFpEF. Impaired GLS was associated with RV dysfunction and NTproBNP but not with clinical outcomes in HFpEF.


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