Association of Clonal Hematopoiesis With Incident Heart Failure

Published on Jul 6, 2021in Journal of the American College of Cardiology20.589
· DOI :10.1016/J.JACC.2021.04.085
Bing Yu26
Estimated H-index: 26
(University of Texas Health Science Center at Houston),
Mary B. Roberts26
Estimated H-index: 26
(Brown University)
+ 22 AuthorsAdolfo Correa84
Estimated H-index: 84
(UMMC: University of Mississippi Medical Center)
Sources
Abstract
Abstract null null Background null Age-related clonal hematopoiesis of indeterminate potential (CHIP), defined as clonally expanded leukemogenic sequence variations (particularly in DNMT3A, TET2, ASXL1, and JAK2) in asymptomatic individuals, is associated with cardiovascular events, including recurrent heart failure (HF). null null null Objectives null This study sought to evaluate whether CHIP is associated with incident HF. null null null Methods null CHIP status was obtained from whole exome or genome sequencing of blood DNA in participants without prevalent HF or hematological malignancy from 5 cohorts. Cox proportional hazards models were performed within each cohort, adjusting for demographic and clinical risk factors, followed by fixed-effect meta-analyses. Large CHIP clones (defined as variant allele frequency >10%), HF with or without baseline coronary heart disease, and left ventricular ejection fraction were evaluated in secondary analyses. null null null Results null Of 56,597 individuals (59% women, mean age 58 years at baseline), 3,406 (6%) had CHIP, and 4,694 developed HF (8.3%) over up to 20 years of follow-up. CHIP was prospectively associated with a 25% increased risk of HF in meta-analysis (hazard ratio: 1.25; 95% confidence interval: 1.13-1.38) with consistent associations across cohorts. ASXL1, TET2, and JAK2 sequence variations were each associated with an increased risk of HF, whereas DNMT3A sequence variations were not associated with HF. Secondary analyses suggested large CHIP was associated with a greater risk of HF (hazard ratio: 1.29; 95% confidence interval: 1.15-1.44), and the associations for CHIP on HF with and without prior coronary heart disease were homogenous. ASXL1 sequence variations were associated with reduced left ventricular ejection fraction. null null null Conclusions null CHIP, particularly sequence variations in ASXL1, TET2, and JAK2, represents a new risk factor for HF.
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