ArticleCJC open2025
Longitudinal Changes in Diastolic Dysfunction in Heart Failure with Reduced Ejection Fraction: Clinical and Echocardiographic Associations.
Article in CJC open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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3 authors.
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Abstract
Background: Diastolic dysfunction (DD) in heart failure with reduced ejection fraction (HFrEF) is relatively understudied, particularly regarding longitudinal changes in DD after HFrEF diagnosis and their clinical and echocardiographic associations. Methods: This retrospective study included 360 patients with HFrEF who visited heart failure (HF) clinics in King Salman Heart Center, Riyadh, Saudi Arabia, between October 2019 and January 2020. Associations between DD grades and patients' clinical characteristics and echocardiographic parameters at diagnosis and during follow-up were evaluated. Results: At diagnosis, left ventricular ejection fraction (LVEF) was 26.7% ( ± 7.2%), and 43.1%, 29.4%, and 27.5% of patients had grade III, II, and I DD, respectively. After 3.4 years, 65% and 57.5% of patients with grades III and II DD, respectively, improved by at least one grade. Concordant improvements in almost all diastolic parameters were observed. DD grade improvement was predicted by increased LVEF ( Conclusions: In HFrEF, DD improves with better LVEF and absence of ischemia or infarction. DD improvement is independently associated with improved New York Heart Association class, systolic blood pressure, and B-type natriuretic peptide level, suggesting that in HFrEF, diastolic HF coexists with and parallels systolic HF severity, and contributes independently to symptoms and hemodynamics.
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