Potential Effects of Bariatric Surgery on the Incidence of Heart Failure and Atrial Fibrillation in Patients With Type 2 Diabetes Mellitus and Obesity and on Mortality in Patients With Preexisting Heart Failure: A Nationwide, Matched, Observational Cohort Study

Background Obesity and diabetes mellitus are strongly associated with heart failure (HF) and atrial fibrillation (AF). The benefits of bariatric surgery on cardiovascular outcomes are known in people with or without diabetes mellitus. Surgical treatment of obesity might also reduce the incidence of...

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Main Authors: Gudrún Höskuldsdóttir, Naveed Sattar, Mervete Miftaraj, Ingmar Näslund, Johan Ottosson, Stefan Franzén, Ann‐Marie Svensson, Björn Eliasson
Format: Article
Language:English
Published: Wiley 2021-04-01
Series:Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Subjects:
Online Access:https://www.ahajournals.org/doi/10.1161/JAHA.120.019323
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author Gudrún Höskuldsdóttir
Naveed Sattar
Mervete Miftaraj
Ingmar Näslund
Johan Ottosson
Stefan Franzén
Ann‐Marie Svensson
Björn Eliasson
author_facet Gudrún Höskuldsdóttir
Naveed Sattar
Mervete Miftaraj
Ingmar Näslund
Johan Ottosson
Stefan Franzén
Ann‐Marie Svensson
Björn Eliasson
author_sort Gudrún Höskuldsdóttir
collection DOAJ
description Background Obesity and diabetes mellitus are strongly associated with heart failure (HF) and atrial fibrillation (AF). The benefits of bariatric surgery on cardiovascular outcomes are known in people with or without diabetes mellitus. Surgical treatment of obesity might also reduce the incidence of HF and AF in individuals with obesity and type 2 diabetes mellitus (T2DM). Methods and Results In this register‐based nationwide cohort study we compared individuals with T2DM and obesity who underwent Roux‐en‐Y gastric bypass surgery with matched individuals not treated with surgery. The main outcome measures were hospitalization for HF and/or AF and mortality in patients with preexisting HF. We identified 5321 individuals with T2DM and obesity who had undergone Roux‐en‐Y gastric bypass surgery between January 2007 and December 2013 and 5321 matched controls. The individuals included were 18 to 65 years old and had a body mass index >27.5 kg/m2. The follow‐up time for hospitalization was until the end of 2015 (mean 4.5 years) and the end of 2016 for death. Our results show a 73% lower risk for HF (hazard ratio [HR], 0.27; CI, 0.19–0.38), 41% for AF (HR, 0.59; CI, 0.44–0.78), and 77% for concomitant AF and HF (HR, 0.23; CI, 0.12–0.46) in the surgically treated group. In patients with preexisting HF we observed significantly lower mortality in the group who underwent surgery (HR, 0.23; 95% CI, 0.12–0.43). Conclusions Bariatric surgery may reduce risk for HF and AF in patients with T2DM and obesity, speculatively via positive cardiovascular and renal effects. Obesity treatment with surgery may also be a valuable alternative in selected patients with T2DM and HF.
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spelling doaj.art-9386dbc34e4a4a21b827dc60f3ec3d132022-12-21T21:10:15ZengWileyJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease2047-99802021-04-0110710.1161/JAHA.120.019323Potential Effects of Bariatric Surgery on the Incidence of Heart Failure and Atrial Fibrillation in Patients With Type 2 Diabetes Mellitus and Obesity and on Mortality in Patients With Preexisting Heart Failure: A Nationwide, Matched, Observational Cohort StudyGudrún Höskuldsdóttir0Naveed Sattar1Mervete Miftaraj2Ingmar Näslund3Johan Ottosson4Stefan Franzén5Ann‐Marie Svensson6Björn Eliasson7Department of Molecular and Clinical Medicine University of Gothenburg SwedenThe Institute of Cardiovascular and Medical Sciences University of Glasgow United KingdomCentre of Registers National Diabetes Register Gothenburg SwedenDepartment of Surgery Faculty of Medicine and Health Örebro University Örebro SwedenDepartment of Surgery Faculty of Medicine and Health Örebro University Örebro SwedenCentre of Registers National Diabetes Register Gothenburg SwedenDepartment of Molecular and Clinical Medicine University of Gothenburg SwedenDepartment of Molecular and Clinical Medicine University of Gothenburg SwedenBackground Obesity and diabetes mellitus are strongly associated with heart failure (HF) and atrial fibrillation (AF). The benefits of bariatric surgery on cardiovascular outcomes are known in people with or without diabetes mellitus. Surgical treatment of obesity might also reduce the incidence of HF and AF in individuals with obesity and type 2 diabetes mellitus (T2DM). Methods and Results In this register‐based nationwide cohort study we compared individuals with T2DM and obesity who underwent Roux‐en‐Y gastric bypass surgery with matched individuals not treated with surgery. The main outcome measures were hospitalization for HF and/or AF and mortality in patients with preexisting HF. We identified 5321 individuals with T2DM and obesity who had undergone Roux‐en‐Y gastric bypass surgery between January 2007 and December 2013 and 5321 matched controls. The individuals included were 18 to 65 years old and had a body mass index >27.5 kg/m2. The follow‐up time for hospitalization was until the end of 2015 (mean 4.5 years) and the end of 2016 for death. Our results show a 73% lower risk for HF (hazard ratio [HR], 0.27; CI, 0.19–0.38), 41% for AF (HR, 0.59; CI, 0.44–0.78), and 77% for concomitant AF and HF (HR, 0.23; CI, 0.12–0.46) in the surgically treated group. In patients with preexisting HF we observed significantly lower mortality in the group who underwent surgery (HR, 0.23; 95% CI, 0.12–0.43). Conclusions Bariatric surgery may reduce risk for HF and AF in patients with T2DM and obesity, speculatively via positive cardiovascular and renal effects. Obesity treatment with surgery may also be a valuable alternative in selected patients with T2DM and HF.https://www.ahajournals.org/doi/10.1161/JAHA.120.019323atrial fibrillationbariatric surgeryheart failureobesitytype 2 diabetes mellitus
spellingShingle Gudrún Höskuldsdóttir
Naveed Sattar
Mervete Miftaraj
Ingmar Näslund
Johan Ottosson
Stefan Franzén
Ann‐Marie Svensson
Björn Eliasson
Potential Effects of Bariatric Surgery on the Incidence of Heart Failure and Atrial Fibrillation in Patients With Type 2 Diabetes Mellitus and Obesity and on Mortality in Patients With Preexisting Heart Failure: A Nationwide, Matched, Observational Cohort Study
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
atrial fibrillation
bariatric surgery
heart failure
obesity
type 2 diabetes mellitus
title Potential Effects of Bariatric Surgery on the Incidence of Heart Failure and Atrial Fibrillation in Patients With Type 2 Diabetes Mellitus and Obesity and on Mortality in Patients With Preexisting Heart Failure: A Nationwide, Matched, Observational Cohort Study
title_full Potential Effects of Bariatric Surgery on the Incidence of Heart Failure and Atrial Fibrillation in Patients With Type 2 Diabetes Mellitus and Obesity and on Mortality in Patients With Preexisting Heart Failure: A Nationwide, Matched, Observational Cohort Study
title_fullStr Potential Effects of Bariatric Surgery on the Incidence of Heart Failure and Atrial Fibrillation in Patients With Type 2 Diabetes Mellitus and Obesity and on Mortality in Patients With Preexisting Heart Failure: A Nationwide, Matched, Observational Cohort Study
title_full_unstemmed Potential Effects of Bariatric Surgery on the Incidence of Heart Failure and Atrial Fibrillation in Patients With Type 2 Diabetes Mellitus and Obesity and on Mortality in Patients With Preexisting Heart Failure: A Nationwide, Matched, Observational Cohort Study
title_short Potential Effects of Bariatric Surgery on the Incidence of Heart Failure and Atrial Fibrillation in Patients With Type 2 Diabetes Mellitus and Obesity and on Mortality in Patients With Preexisting Heart Failure: A Nationwide, Matched, Observational Cohort Study
title_sort potential effects of bariatric surgery on the incidence of heart failure and atrial fibrillation in patients with type 2 diabetes mellitus and obesity and on mortality in patients with preexisting heart failure a nationwide matched observational cohort study
topic atrial fibrillation
bariatric surgery
heart failure
obesity
type 2 diabetes mellitus
url https://www.ahajournals.org/doi/10.1161/JAHA.120.019323
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