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Caffeine and Arrhythmias: Time to Grind the Data.
Aleksandr Voskoboinik1, Jonathan M Kalman2, Peter M Kistler3
1Alfred Heart Centre, Alfred Hospital, Melbourne, Victoria, Australia; Baker IDI Heart and Diabetes Research Institute, Melbourne, Victoria, Australia; Department of Cardiology, Royal Melbourne Hospital, Melbourne, Victoria, Australia.
JACC. Clinical Electrophysiology
|August 2, 2018
Summary
Caffeinated beverages like coffee and tea may not significantly impact cardiac rhythm, despite common beliefs. This review examines the scientific evidence on caffeine
Area of Science:
- Cardiology
- Electrophysiology
- Public Health
Background:
- Established links exist between lifestyle factors (obesity, alcohol) and arrhythmia episodes.
- Public and professional interest is high regarding caffeinated beverages and heart health.
- Many popular beliefs about caffeine's effects on the heart lack robust scientific support.
Purpose of the Study:
- To conduct a comprehensive review of the scientific literature.
- To evaluate the impact of caffeinated beverages on cardiac rhythm.
- To clarify the evidence regarding caffeine consumption and heart rhythm disorders.
Main Methods:
- Systematic literature search across major databases.
- Analysis of observational studies and clinical trials.
- Synthesis of data on coffee, tea, and energy drink consumption and arrhythmia incidence.
Main Results:
- Evidence does not consistently support a detrimental effect of moderate caffeine intake on cardiac rhythm.
- Specific beverage types and consumption patterns may yield varied outcomes.
- Further research is needed to delineate nuanced relationships.
Conclusions:
- Widely held beliefs about caffeine negatively affecting heart rhythm are often not supported by current scientific evidence.
- Moderate consumption of caffeinated beverages is unlikely to pose a significant risk for most individuals.
- Individual responses to caffeine can vary, warranting personalized assessment.
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