Obesity paradox in chronic heart failure with moderately reduced or preserved left ventricular ejection fraction: impact on a prognosis for patients according to a five-year follow-up

Aim. To investigate the obesity paradox by studying the impact of overweight and abdominal obesity on the prognosis in chronic heart failure (CHF) patients with moderately reduced or preserved left ventricular ejection fraction (LVEF) by five-year follow-up results. Materials and methods. A prosp...

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Main Authors: P. P. Bidzilya, V. H. Kadzharian, M. V. Bychko
Format: Article
Language:English
Published: Zaporizhzhia State Medical and Pharmaceutical University 2023-07-01
Series:Zaporožskij Medicinskij Žurnal
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Online Access:http://zmj.zsmu.edu.ua/article/view/280957/279335
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author P. P. Bidzilya
V. H. Kadzharian
M. V. Bychko
author_facet P. P. Bidzilya
V. H. Kadzharian
M. V. Bychko
author_sort P. P. Bidzilya
collection DOAJ
description Aim. To investigate the obesity paradox by studying the impact of overweight and abdominal obesity on the prognosis in chronic heart failure (CHF) patients with moderately reduced or preserved left ventricular ejection fraction (LVEF) by five-year follow-up results. Materials and methods. A prospective, open, parallel-group study included 314 CHF patients with moderately reduced or preserved LVEF, average age was 65.3 ± 11.2 years. Group 1 – 66 patients with normal weight; Group 2 – 67 overweight patients; Group 3 – 90 patients with I degree abdominal obesity; Group 4 – 91 subjects with II–III degrees of obesity. Adverse cardiovascular events (CVEs) were studied as a cumulative endpoint, cardiovascular death, and rehospitalization due to decompensated CHF. Results. It has been found that excess body weight (overweight and I–III degrees of abdominal obesity) did not affect the prevalence and spectrum of adverse CVEs in CHF patients with moderately reduced and preserved LVEF. In overweight patients, compared to I degree obesity group, the incidence of cumulative end point (by 15.4 %; χ2 = 3.95, p < 0.05) and cases of re-hospitalization (by 19.0 %; χ2 = 5.6, p < 0.05) were more often observed. Concomitant overweight was associated with an increased risk for faster onset of the cumulative end point (HR 1.46, 95 % CI 1.1–2.2, p < 0.05) and re-hospitalization (HR 1.53, 95 % CI 1.1–2.4, p < 0.05). Conclusions. The presence of excess body weight (overweight and I–III degrees of abdominal obesity) did not affect the prevalence and spectrum of adverse CVEs in CHF patients with moderately reduced and preserved LVEF during the five-year follow-up. In the presence of overweight, in comparison with I degree abdominal obesity, the incidence of cumulative end point and re-hospitalization due to the disease decompensation were more often observed, which could be evidence for the existence of the obesity paradox. The most adverse effect on the prognosis in CHF patients with moderately reduced and preserved LVEF caused by concomitant overweight, in the presence of which, there was a significant increase in the risk for more faster onset of cumulative end point and re-hospitalization due to decompensation of the disease.
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spelling doaj-art-b05f334a0dfe4e4096d7c2b9b5c477ba2025-08-20T01:59:56ZengZaporizhzhia State Medical and Pharmaceutical UniversityZaporožskij Medicinskij Žurnal2306-41452310-12102023-07-0125430330810.14739/2310-1210.2023.4.280957Obesity paradox in chronic heart failure with moderately reduced or preserved left ventricular ejection fraction: impact on a prognosis for patients according to a five-year follow-upP. P. Bidzilya0https://orcid.org/0000-0003-2451-317XV. H. Kadzharian1https://orcid.org/0000-0003-2542-7142M. V. Bychko2https://orcid.org/0009-0003-7880-6581Zaporizhzhia State Medical and Pharmaceutical University, UkraineZaporizhzhia State Medical and Pharmaceutical University, UkraineUzhhorod National University, UkraineAim. To investigate the obesity paradox by studying the impact of overweight and abdominal obesity on the prognosis in chronic heart failure (CHF) patients with moderately reduced or preserved left ventricular ejection fraction (LVEF) by five-year follow-up results. Materials and methods. A prospective, open, parallel-group study included 314 CHF patients with moderately reduced or preserved LVEF, average age was 65.3 ± 11.2 years. Group 1 – 66 patients with normal weight; Group 2 – 67 overweight patients; Group 3 – 90 patients with I degree abdominal obesity; Group 4 – 91 subjects with II–III degrees of obesity. Adverse cardiovascular events (CVEs) were studied as a cumulative endpoint, cardiovascular death, and rehospitalization due to decompensated CHF. Results. It has been found that excess body weight (overweight and I–III degrees of abdominal obesity) did not affect the prevalence and spectrum of adverse CVEs in CHF patients with moderately reduced and preserved LVEF. In overweight patients, compared to I degree obesity group, the incidence of cumulative end point (by 15.4 %; χ2 = 3.95, p < 0.05) and cases of re-hospitalization (by 19.0 %; χ2 = 5.6, p < 0.05) were more often observed. Concomitant overweight was associated with an increased risk for faster onset of the cumulative end point (HR 1.46, 95 % CI 1.1–2.2, p < 0.05) and re-hospitalization (HR 1.53, 95 % CI 1.1–2.4, p < 0.05). Conclusions. The presence of excess body weight (overweight and I–III degrees of abdominal obesity) did not affect the prevalence and spectrum of adverse CVEs in CHF patients with moderately reduced and preserved LVEF during the five-year follow-up. In the presence of overweight, in comparison with I degree abdominal obesity, the incidence of cumulative end point and re-hospitalization due to the disease decompensation were more often observed, which could be evidence for the existence of the obesity paradox. The most adverse effect on the prognosis in CHF patients with moderately reduced and preserved LVEF caused by concomitant overweight, in the presence of which, there was a significant increase in the risk for more faster onset of cumulative end point and re-hospitalization due to decompensation of the disease.http://zmj.zsmu.edu.ua/article/view/280957/279335chronic heart failuremoderately reduced ejection fractionpreserved ejection fractionoverweightobesityprognosis
spellingShingle P. P. Bidzilya
V. H. Kadzharian
M. V. Bychko
Obesity paradox in chronic heart failure with moderately reduced or preserved left ventricular ejection fraction: impact on a prognosis for patients according to a five-year follow-up
Zaporožskij Medicinskij Žurnal
chronic heart failure
moderately reduced ejection fraction
preserved ejection fraction
overweight
obesity
prognosis
title Obesity paradox in chronic heart failure with moderately reduced or preserved left ventricular ejection fraction: impact on a prognosis for patients according to a five-year follow-up
title_full Obesity paradox in chronic heart failure with moderately reduced or preserved left ventricular ejection fraction: impact on a prognosis for patients according to a five-year follow-up
title_fullStr Obesity paradox in chronic heart failure with moderately reduced or preserved left ventricular ejection fraction: impact on a prognosis for patients according to a five-year follow-up
title_full_unstemmed Obesity paradox in chronic heart failure with moderately reduced or preserved left ventricular ejection fraction: impact on a prognosis for patients according to a five-year follow-up
title_short Obesity paradox in chronic heart failure with moderately reduced or preserved left ventricular ejection fraction: impact on a prognosis for patients according to a five-year follow-up
title_sort obesity paradox in chronic heart failure with moderately reduced or preserved left ventricular ejection fraction impact on a prognosis for patients according to a five year follow up
topic chronic heart failure
moderately reduced ejection fraction
preserved ejection fraction
overweight
obesity
prognosis
url http://zmj.zsmu.edu.ua/article/view/280957/279335
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AT vhkadzharian obesityparadoxinchronicheartfailurewithmoderatelyreducedorpreservedleftventricularejectionfractionimpactonaprognosisforpatientsaccordingtoafiveyearfollowup
AT mvbychko obesityparadoxinchronicheartfailurewithmoderatelyreducedorpreservedleftventricularejectionfractionimpactonaprognosisforpatientsaccordingtoafiveyearfollowup