Beta-blocker use and acute exacerbations of COPD following myocardial infarction: a Danish nationwide cohort study
Research output: Contribution to journal › Journal article › Research › peer-review
INTRODUCTION: Patients with chronic obstructive pulmonary disease (COPD) are undertreated with beta-blockers following myocardial infarction (MI), possibly due to fear for acute exacerbations of COPD (AECOPD). Is beta-blocker use associated with increased risk of AECOPD in patients following first-time MI?
METHODS: Danish nationwide study of patients with COPD following hospitalisation for MI from 2003 to 2015. Multivariable, time-dependent Cox regression accounting for varying beta-blocker use based on claimed prescriptions during up to 13 years of follow-up.
RESULTS: A total of 10 884 patients with COPD were discharged after first-time MI. The 1-year rate of AECOPD was 35%, and 65% used beta-blockers at 1 year. Beta-blocker use was associated with a lower risk of AECOPD (multivariable-adjusted HR 0.78, 95% CI 0.74-0.83). This association was independent of the type of MI (HR 0.70, 95% CI 0.59-0.83 in ST-elevation MI (STEMI) and HR 0.80, 95% CI 0.75-0.84 in non-STEMI), presence or absence of heart failure (HR 0.82, 95% CI 0.74-0.90 and HR 0.77, 95% CI 0.72-0.82, respectively), beta-blocker dosage and type, as well as exacerbation severity. Results were similar in 1118 patients with full data on COPD severity and symptom burden (median forced expiratory volume in 1 s as percentage of predicted was 46 and majority had moderate dyspnoea), and in 1358 patients with severe COPD and frequent AECOPD with a high 1-year rate of AECOPD of 70%.
DISCUSSION: Beta-blocker use was not associated with increased risk of AECOPD following MI. This finding was independent of COPD severity, symptom burden and exacerbation history, and supports the safety of beta-blockers in patients with COPD, including high-risk patients with severe disease.
Original language | English |
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Journal | Thorax |
Volume | 75 |
Issue number | 11 |
Pages (from-to) | 928-933 |
ISSN | 0040-6376 |
DOIs | |
Publication status | Published - 2020 |
- Acute Disease, Adrenergic beta-Antagonists/therapeutic use, Aged, Aged, 80 and over, Denmark, Disease Progression, Female, Humans, Male, Myocardial Infarction/drug therapy, Pulmonary Disease, Chronic Obstructive/drug therapy, Registries, Risk Factors
Research areas
ID: 260764593