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Weight History and Subclinical Myocardial Damage
Journal article   Peer reviewed

Weight History and Subclinical Myocardial Damage

Chiadi E. Ndumele, Laura Cobb, Mariana Lazo, Natalie A. Bello, Amil Shah, Vijay Nambi, Roger S. Blumenthal, Gary Gerstenblith, Scott D. Solomon, Christie M. Ballantyne, …
Clinical chemistry (Baltimore, Md.), v 64(1), pp 201-209
01 Jan 2018
DOI: https://doi.org/10.1373/clinchem.2017.282798
PMID: 29158254
url
https://doi.org/10.1373/clinchem.2017.282798View
Published, Version of Record (VoR) Open

Abstract

Life Sciences & Biomedicine Medical Laboratory Technology Science & Technology
BACKGROUND: Excess weight is associated with subclinical myocardial damage, as reflected by high-sensitivity cardiac troponin T (hs-cTnT) concentrations, which portends high heart failure risk. However, the association between weight history and myocardial damage is unknown. METHODS: We evaluated 9062 Atherosclerosis Risk in Communities (ARIC) visit 4 (1996-1999) participants with a body mass index (BMI) >= 18.5 kg/m(2) and no previous cardiovascular disease. We cross-tabulated visit 4 ("current") BMI categories of normal weight, over-weight, and obese with those at visit 1 (1987-1989) and with BMI categories calculated from self-reported weight at age 25 years. Duration of obesity was calculated in years. A cumulative weight measure of "excess BMI-years" was also calculated [product of mean BMI (centered at 25 kg/m(2)) over all ARIC time points x follow-up duration]. We used logistic regression to estimate associations of weight history metrics with increased hs-cTnT (>= 14 ng/L) at visit 4. RESULTS: Overall, 623 individuals (7%) had increased hs-cTnT at visit 4. Within each current BMI category, previous excess weight was associated with increased hs-cTnT, with the strongest associations for those with past and current obesity [odds ratio (OR), 3.85; 95% CI, 2.51-5.90 for obesity at age 25 years and visit 4]. Each 10-year longer obesity duration was associated with increased hs-cTnT (OR, 1.26; 95% CI, 1.17-1.35). Each 100 higher excess BMI-years was also progressively associated with increased hs-cTnT (OR, 1.21; 95% CI, 1.14-1.27). CONCLUSIONS: Previous obesity and greater cumulative weight from young adulthood increase the likelihood of myocardial damage, indicating long-term toxic effects of adiposity on the myocardium and the need for weight maintenance strategies targeting the entire life span. (c) 2017 American Association for Clinical Chemistry

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