Arrhythmia Risk and Cannabis Use Have Paradoxical Relationship
Researchers investigated the relationship between cannabis use and arrhythmia risk in patients with and without heart disease.
Cannabis use and arrhythmias have a paradoxical relationship, where cannabis use increases arrhythmia risk in the general population but lowers risk among patients with heart disease, according to a study presented at the Heart Failure Society of America (HFSA) Annual Scientific Meeting 2025.
The relationship between cannabis and arrhythmias is not fully established, with conflicting evidence on whether cannabis is harmful or protective.
- Investigators searched publication databases through February 2025 for relevant studies.
- A total of 21 observational studies were included in this systematic review and meta-analysis.
The relationship between cannabis and arrhythmias has not been fully established.
Author's summary: Cannabis use has a paradoxical relationship with arrhythmia risk.