Body Mass Index: An Effective Predictor of Ejection Fraction Improvement in Heart Failure

Background: Heart failure patients with higher body mass index (BMI) exhibit better clinical outcomes. Therefore, we assessed whether the BMI can predict left ventricular ejection fraction (EF) improvement following heart failure.Methods and Results: We included 184 patients newly diagnosed with dil...

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Main Authors: Li-fang Ye, Xue-ling Li, Shao-mei Wang, Yun-fan Wang, Ya-ru Zheng, Li-hong Wang
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-12-01
Series:Frontiers in Cardiovascular Medicine
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fcvm.2021.586240/full
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author Li-fang Ye
Li-fang Ye
Xue-ling Li
Xue-ling Li
Shao-mei Wang
Shao-mei Wang
Yun-fan Wang
Yun-fan Wang
Ya-ru Zheng
Ya-ru Zheng
Li-hong Wang
Li-hong Wang
author_facet Li-fang Ye
Li-fang Ye
Xue-ling Li
Xue-ling Li
Shao-mei Wang
Shao-mei Wang
Yun-fan Wang
Yun-fan Wang
Ya-ru Zheng
Ya-ru Zheng
Li-hong Wang
Li-hong Wang
author_sort Li-fang Ye
collection DOAJ
description Background: Heart failure patients with higher body mass index (BMI) exhibit better clinical outcomes. Therefore, we assessed whether the BMI can predict left ventricular ejection fraction (EF) improvement following heart failure.Methods and Results: We included 184 patients newly diagnosed with dilated cardiomyopathy and reduced EF in our center and who underwent follow-up examination of EF via echocardiography after 6 months. The EF improved at 6 months in 88 participants, who were included in the heart failure with recovered EF (HFrecEF) subgroup. Patients in whom the EF remained reduced were included in the heart failure with persistently reduced EF (persistent HFrEF) subgroup. Our analyses revealed that EF increase correlated with age (r = −0.254, P = 0.001), left ventricular diastolic dimension (LVDD; r = −0.210, P = 0.004), diabetes (P = 0.034), brain natriuretic peptide (r = −0.199, P = 0.007), and BMI grade (P = 0.000). BMI grade was significantly associated with elevated EF after adjustment for other variables (P = 0.001). On multivariable analysis, compared to patients with persistent HFrEF, those with HFrecEF had higher BMI [odds ratio (OR) = 2.342 per one standard deviation increase; P = 0.001] and lower LVDD (OR = 0.466 per one standard deviation increase; P = 0.001). ROC-curve analysis data showed that BMI > 22.66 kg/m2 (sensitivity 84.1%, specificity 59.4%, AUC 0.745, P = 0.000) indicate high probability of EF recovery in 6 months.Conclusions: Our data suggest that higher BMI is strongly correlated with the recovered EF and that BMI is an effective predictor of EF improvement in patients with heart failure and reduced EF.
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spelling doaj.art-2c5db270ec5e4e6786512c8846971b662022-12-21T19:55:51ZengFrontiers Media S.A.Frontiers in Cardiovascular Medicine2297-055X2021-12-01810.3389/fcvm.2021.586240586240Body Mass Index: An Effective Predictor of Ejection Fraction Improvement in Heart FailureLi-fang Ye0Li-fang Ye1Xue-ling Li2Xue-ling Li3Shao-mei Wang4Shao-mei Wang5Yun-fan Wang6Yun-fan Wang7Ya-ru Zheng8Ya-ru Zheng9Li-hong Wang10Li-hong Wang11Department of Cardiology, Zhejiang Provincial People's Hospital, Hangzhou, ChinaPeople's Hospital of Hangzhou Medical College, Hangzhou, ChinaDepartment of Cardiology, Zhejiang Provincial People's Hospital, Hangzhou, ChinaPeople's Hospital of Hangzhou Medical College, Hangzhou, ChinaDepartment of Cardiology, Zhejiang Provincial People's Hospital, Hangzhou, ChinaPeople's Hospital of Hangzhou Medical College, Hangzhou, ChinaDepartment of Cardiology, Zhejiang Provincial People's Hospital, Hangzhou, ChinaPeople's Hospital of Hangzhou Medical College, Hangzhou, ChinaDepartment of Cardiology, Zhejiang Provincial People's Hospital, Hangzhou, ChinaPeople's Hospital of Hangzhou Medical College, Hangzhou, ChinaDepartment of Cardiology, Zhejiang Provincial People's Hospital, Hangzhou, ChinaPeople's Hospital of Hangzhou Medical College, Hangzhou, ChinaBackground: Heart failure patients with higher body mass index (BMI) exhibit better clinical outcomes. Therefore, we assessed whether the BMI can predict left ventricular ejection fraction (EF) improvement following heart failure.Methods and Results: We included 184 patients newly diagnosed with dilated cardiomyopathy and reduced EF in our center and who underwent follow-up examination of EF via echocardiography after 6 months. The EF improved at 6 months in 88 participants, who were included in the heart failure with recovered EF (HFrecEF) subgroup. Patients in whom the EF remained reduced were included in the heart failure with persistently reduced EF (persistent HFrEF) subgroup. Our analyses revealed that EF increase correlated with age (r = −0.254, P = 0.001), left ventricular diastolic dimension (LVDD; r = −0.210, P = 0.004), diabetes (P = 0.034), brain natriuretic peptide (r = −0.199, P = 0.007), and BMI grade (P = 0.000). BMI grade was significantly associated with elevated EF after adjustment for other variables (P = 0.001). On multivariable analysis, compared to patients with persistent HFrEF, those with HFrecEF had higher BMI [odds ratio (OR) = 2.342 per one standard deviation increase; P = 0.001] and lower LVDD (OR = 0.466 per one standard deviation increase; P = 0.001). ROC-curve analysis data showed that BMI > 22.66 kg/m2 (sensitivity 84.1%, specificity 59.4%, AUC 0.745, P = 0.000) indicate high probability of EF recovery in 6 months.Conclusions: Our data suggest that higher BMI is strongly correlated with the recovered EF and that BMI is an effective predictor of EF improvement in patients with heart failure and reduced EF.https://www.frontiersin.org/articles/10.3389/fcvm.2021.586240/fullbody mass indexobesityleft ventricular ejection fractionimprovementheart failure
spellingShingle Li-fang Ye
Li-fang Ye
Xue-ling Li
Xue-ling Li
Shao-mei Wang
Shao-mei Wang
Yun-fan Wang
Yun-fan Wang
Ya-ru Zheng
Ya-ru Zheng
Li-hong Wang
Li-hong Wang
Body Mass Index: An Effective Predictor of Ejection Fraction Improvement in Heart Failure
Frontiers in Cardiovascular Medicine
body mass index
obesity
left ventricular ejection fraction
improvement
heart failure
title Body Mass Index: An Effective Predictor of Ejection Fraction Improvement in Heart Failure
title_full Body Mass Index: An Effective Predictor of Ejection Fraction Improvement in Heart Failure
title_fullStr Body Mass Index: An Effective Predictor of Ejection Fraction Improvement in Heart Failure
title_full_unstemmed Body Mass Index: An Effective Predictor of Ejection Fraction Improvement in Heart Failure
title_short Body Mass Index: An Effective Predictor of Ejection Fraction Improvement in Heart Failure
title_sort body mass index an effective predictor of ejection fraction improvement in heart failure
topic body mass index
obesity
left ventricular ejection fraction
improvement
heart failure
url https://www.frontiersin.org/articles/10.3389/fcvm.2021.586240/full
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