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The evaluation of β-adrenoceptor blocking agents in patients with COPD and congestive heart failure: a nationwide study

Authors Liao KM, Lin T, Huang Y, Kuo C, Chen C

Received 12 May 2017

Accepted for publication 29 July 2017

Published 26 August 2017 Volume 2017:12 Pages 2573—2581


Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Charles Downs

Peer reviewer comments 3

Editor who approved publication: Dr Richard Russell

Kuang-Ming Liao,1,* Tien-Yu Lin,2,3 Yaw-Bin Huang,2,3 Chen-Chun Kuo,2,* Chung-Yu Chen2,3

1Department of Internal Medicine, Chi Mei Medical Center, Chiali, Tainan, 2School of Pharmacy, Kaohsiung Medical University, 3Department of Pharmacy, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan, Republic of China

*These authors contributed equally to this work

Objective: β-Blockers are safe and improve survival in patients with both congestive heart failure (CHF) and COPD. However, the superiority of different types of β-blockers is still unclear among patients with CHF and COPD. The association between β-blockers and CHF exacerbation as well as COPD exacerbation remains unclear. The objective of this study was to compare the outcome of different β-blockers in patients with concurrent CHF and COPD.
Patients and methods: We used the National Health Insurance Research Database in Taiwan to conduct a retrospective cohort study. The inclusion criteria for CHF were patients who were >20 years old and were diagnosed with CHF between January 1, 2005 and December 31, 2012. COPD patients included those who had outpatient visit claims ≥2 times within 365 days or 1 claim for hospitalization with a COPD diagnosis. A time-dependent Cox proportional hazards regression model was applied to evaluate the effectiveness of β-blockers in the study population.
Results: We identified 1,872 patients with concurrent CHF and COPD. Only high-dose bisoprolol significantly reduced the risk of death and slightly decreased the hospitalization rate due to CHF exacerbation (death: adjusted hazard ratio [aHR] =0.51, 95% confidence interval [CI] =0.29–0.89; hospitalization rate due to CHF exacerbation: aHR =0.48, 95% CI =0.23–1.00). No association was observed between β-blocker use and COPD exacerbation.
Conclusion: In patients with concurrent CHF and COPD, β-blockers reduced mortality, CHF exacerbation, and the need for hospitalization. Bisoprolol was found to reduce mortality and CHF exacerbation compared to carvedilol and metoprolol.

Keywords: congestive heart failure, COPD, β-blockers, acute exacerbation

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