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Search: WFRF:(Sacca F)

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  • Arcopinto, M., et al. (author)
  • Growth Hormone Deficiency Is Associated with Worse Cardiac Function, Physical Performance, and Outcome in Chronic Heart Failure: Insights from the TOSCA. GHD Study
  • 2017
  • In: Plos One. - : Public Library of Science (PLoS). - 1932-6203. ; 12:1
  • Journal article (peer-reviewed)abstract
    • Background Although mounting evidence supports the concept that growth hormone (GH) deficiency (GHD) affects cardiovascular function, no study has systematically investigated its prevalence and role in a large cohort of chronic heart failure (CHF) patients. Aim of this study is to assess the prevalence of GHD in mild-to-moderate CHF and to explore clinical and functional correlates of GHD. One-hundred thirty CHF patients underwent GH provocative test with GHRH+arginine and accordingly categorized into GH-deficiency (GHD, n = 88, age = 61.6 +/- 1.1 years, 68% men) and GH-sufficiency (GHS, n = 42, age = 63.6 +/- 1.5 years, 81% men) cohorts. Both groups received comprehensive cardiovascular examination and underwent Doppler echocardiography, cardiopulmonary exercise testing, and biochemical and hormonal assay. GHD was detected in roughly 30% of CHF patients. Compared to GHD, GHS patients showed smaller end-diastolic and end-systolic LV volumes (-28%, p=.008 and -24%, p=.015, respectively), lower LV end-systolic wall stress (-21%, p=.03), higher RV performance (+18% in RV area change, p=.03), lower estimated systolic pulmonary artery pressure (-11%, p=.04), higher peak VO2 (+20%, p=.001) and increased ventilatory efficiency (-12% in VE/VCO2 slope, p=.002). After adjusting for clinical covariates (age, gender, and tertiles of LV ejection fraction, IGF-1, peak VO2, VE/VCO2 slope, and NT-proBNP), logistic multivariate analysis showed that peak VO2 (beta = -1.92, SE = 1.67, p=.03), VE/VCO2 slope (beta = 2.23, SE = 1.20, p=.02) and NT-proBNP (beta = 2.48, SE = 1.02, p=.016), were significantly associated with GHD status. Finally, compared to GHS, GHD cohort showed higher all-cause mortality at median follow-up of 3.5 years (40% vs. 25%, p<.001, respectively), independent of age, sex, NT-proBNP, peak VO2 and LVEF. GH deficiency identifies a subgroup of CHF patients characterized by impaired functional capacity, LV remodeling and elevated NT-proBNP levels. GHD is also associated with increased all-cause mortality.
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