Effect of Digoxin Therapy on Mortality in Patients With Atrial Fibrillation: An Updated Meta-Analysis

Background: Whether digoxin is associated with increased mortality in atrial fibrillation (AF) remains controversial. We aimed to assess the risk of mortality and clinical effects of digoxin use in patients with AF.Methods: PubMed, Embase, and the Cochrane library were systematically searched to ide...

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Main Authors: Xiaoxu Wang, Yi Luo, Dan Xu, Kun Zhao
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-10-01
Series:Frontiers in Cardiovascular Medicine
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fcvm.2021.731135/full
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author Xiaoxu Wang
Yi Luo
Dan Xu
Kun Zhao
author_facet Xiaoxu Wang
Yi Luo
Dan Xu
Kun Zhao
author_sort Xiaoxu Wang
collection DOAJ
description Background: Whether digoxin is associated with increased mortality in atrial fibrillation (AF) remains controversial. We aimed to assess the risk of mortality and clinical effects of digoxin use in patients with AF.Methods: PubMed, Embase, and the Cochrane library were systematically searched to identify eligible studies comparing all-cause mortality of patients with AF taking digoxin with those not taking digoxin, and the length of follow-up was at least 6 months. Hazard ratios (HRs) with 95% confidence intervals (CIs) were extracted and pooled.Results: A total of 29 studies with 621,478 patients were included. Digoxin use was associated with an increased risk of all-cause mortality in all patients with AF (HR 1.17, 95% CI 1.13–1.22, P < 0.001), especially in patients without HF (HR 1.28, 95% CI 1.11–1.47, P < 0.001). There was no significant association between digoxin and mortality in patients with AF and HF (HR 1.06, 95% CI 0.99–1.14, P = 0.110). In all patients with AF, regardless of concomitant HF, digoxin use was associated with an increased risk of sudden cardiac death (SCD) (HR 1.40, 95% CI 1.23–1.60, P < 0.001) and cardiovascular (CV) mortality (HR 1.27, 95% CI 1.08–1.50, P < 0.001), and digoxin use had no significant association with all-cause hospitalization (HR 1.13, 95% CI 0.92–1.39, P = 0.230).Conclusion: We conclude that digoxin use is associated with an increased risk of all-cause mortality, CV mortality, and SCD, and it does not reduce readmission for AF, regardless of concomitant HF. Digoxin may have a neutral effect on all-cause mortality in patients with AF with concomitant HF.Systematic Review Registration:https://www.crd.york.ac.ukPROSPERO.
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spelling doaj.art-3c59ac385bd7437d9217ae8005ab7b6e2022-12-21T22:08:42ZengFrontiers Media S.A.Frontiers in Cardiovascular Medicine2297-055X2021-10-01810.3389/fcvm.2021.731135731135Effect of Digoxin Therapy on Mortality in Patients With Atrial Fibrillation: An Updated Meta-AnalysisXiaoxu Wang0Yi Luo1Dan Xu2Kun Zhao3Department of Cardiovascular Diseases, The First Branch, The First Affiliated Hospital of Chongqing Medical University, Chongqing, ChinaDepartment of Cardiovascular Diseases, The First Branch, The First Affiliated Hospital of Chongqing Medical University, Chongqing, ChinaDepartment of Cardiovascular Diseases, The First Branch, The First Affiliated Hospital of Chongqing Medical University, Chongqing, ChinaDepartment of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, ChinaBackground: Whether digoxin is associated with increased mortality in atrial fibrillation (AF) remains controversial. We aimed to assess the risk of mortality and clinical effects of digoxin use in patients with AF.Methods: PubMed, Embase, and the Cochrane library were systematically searched to identify eligible studies comparing all-cause mortality of patients with AF taking digoxin with those not taking digoxin, and the length of follow-up was at least 6 months. Hazard ratios (HRs) with 95% confidence intervals (CIs) were extracted and pooled.Results: A total of 29 studies with 621,478 patients were included. Digoxin use was associated with an increased risk of all-cause mortality in all patients with AF (HR 1.17, 95% CI 1.13–1.22, P < 0.001), especially in patients without HF (HR 1.28, 95% CI 1.11–1.47, P < 0.001). There was no significant association between digoxin and mortality in patients with AF and HF (HR 1.06, 95% CI 0.99–1.14, P = 0.110). In all patients with AF, regardless of concomitant HF, digoxin use was associated with an increased risk of sudden cardiac death (SCD) (HR 1.40, 95% CI 1.23–1.60, P < 0.001) and cardiovascular (CV) mortality (HR 1.27, 95% CI 1.08–1.50, P < 0.001), and digoxin use had no significant association with all-cause hospitalization (HR 1.13, 95% CI 0.92–1.39, P = 0.230).Conclusion: We conclude that digoxin use is associated with an increased risk of all-cause mortality, CV mortality, and SCD, and it does not reduce readmission for AF, regardless of concomitant HF. Digoxin may have a neutral effect on all-cause mortality in patients with AF with concomitant HF.Systematic Review Registration:https://www.crd.york.ac.ukPROSPERO.https://www.frontiersin.org/articles/10.3389/fcvm.2021.731135/fulldigoxinatrial fibrillationheart failuremortalityreadmission
spellingShingle Xiaoxu Wang
Yi Luo
Dan Xu
Kun Zhao
Effect of Digoxin Therapy on Mortality in Patients With Atrial Fibrillation: An Updated Meta-Analysis
Frontiers in Cardiovascular Medicine
digoxin
atrial fibrillation
heart failure
mortality
readmission
title Effect of Digoxin Therapy on Mortality in Patients With Atrial Fibrillation: An Updated Meta-Analysis
title_full Effect of Digoxin Therapy on Mortality in Patients With Atrial Fibrillation: An Updated Meta-Analysis
title_fullStr Effect of Digoxin Therapy on Mortality in Patients With Atrial Fibrillation: An Updated Meta-Analysis
title_full_unstemmed Effect of Digoxin Therapy on Mortality in Patients With Atrial Fibrillation: An Updated Meta-Analysis
title_short Effect of Digoxin Therapy on Mortality in Patients With Atrial Fibrillation: An Updated Meta-Analysis
title_sort effect of digoxin therapy on mortality in patients with atrial fibrillation an updated meta analysis
topic digoxin
atrial fibrillation
heart failure
mortality
readmission
url https://www.frontiersin.org/articles/10.3389/fcvm.2021.731135/full
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AT kunzhao effectofdigoxintherapyonmortalityinpatientswithatrialfibrillationanupdatedmetaanalysis