Amiodarone Interaction With β-Blockers
Key result
Amiodarone combined with beta-blockers in post-myocardial infarction patients significantly reduced cardiac death (P=0.05) and arrhythmic death or resuscitated cardiac arrest (P=0.03).
Why the study?
Does the combination of amiodarone and beta-blockers reduce mortality and arrhythmic death in post-myocardial infarction patients?
Population
Post-myocardial infarction patients
Comparison
Amiodarone combined with beta-blockers vs Beta-blockers alone, amiodarone alone, or neither
Design
Meta-analysis
Authors
Discussion
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Member takes
Implication
Supports combined amiodarone-beta-blocker use post-MI to reduce cardiac and arrhythmic deaths; confirms experimental synergy.
Study Design
Type
RCT
Multicenter
Yes
Structured PICO
Does the combination of amiodarone and beta-blockers reduce mortality and arrhythmic death in post-myocardial infarction patients?
P
Population
Post-myocardial infarction patients (pooled from the European Amiodarone Myocardial Infarction Trial [EMIAT] and the Canadian Amiodarone Myocardial Infarction Trial [CAMIAT])
I
Intervention
Amiodarone combined with beta-blockers
C
Comparator
Beta-blockers alone, amiodarone alone, or neither
O
Outcome
All-cause mortality, cardiac death, arrhythmic cardiac death, nonarrhythmic cardiac death, arrhythmic death, or resuscitated cardiac arresthard clinical
Main Result
p-value: p=0.05 and 0.03
The combination of amiodarone and beta-blockers in post-myocardial infarction patients is safe and synergistically reduces cardiac and arrhythmic deaths.
Limitations
- Findings are based on a post hoc analysis.
- post hoc analysis
Cite This Study
Boutitie et al. (1999) conducted an RCT in Post-myocardial infarction. Amiodarone and beta-blockers vs. Without beta-blockers, with or without amiodarone was evaluated on Cardiac death and arrhythmic death or resuscitated cardiac arrest (p=0.05 and 0.03). Amiodarone combined with beta-blockers in post-myocardial infarction patients significantly reduced cardiac death (P=0.05) and arrhythmic death or resuscitated cardiac arrest (P=0.03).