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Arrhythmias and cannabis use: A comprehensive overview
Shweta Paulraj1, Prakash Upreti2, Ketan Tamirisa3
1Department of Clinical Cardiac Electrophysiology, Medstar Washington Hospital Center/Georgetown University, Washington, DC.
Heart Rhythm O2
|April 14, 2025
Summary
Cannabis use is linked to a higher risk of arrhythmias like atrial fibrillation, especially in young males. Patients with heart conditions should avoid cannabis due to potential cardiac risks.
Area of Science:
- Cardiology
- Pharmacology
- Public Health
Background:
- Global cannabis use is rising, necessitating an understanding of its cardiovascular effects.
- Tetrahydrocannabinol (THC), the main psychoactive component, interacts with the endocannabinoid system, influencing cardiac function.
- Concerns exist regarding the arrhythmogenic potential of both natural and synthetic cannabinoids.
Purpose of the Study:
- To review the current evidence on the arrhythmogenic properties of cannabis.
- To assess the association between cannabis use and the risk of developing various cardiac arrhythmias.
- To provide guidance for at-risk populations regarding cannabis consumption.
Main Methods:
- Systematic review of epidemiological data and clinical studies.
- Analysis of case reports linking cannabis use to specific arrhythmias.
- Evaluation of the arrhythmogenic potential of tetrahydrocannabinol and synthetic cannabinoids.
Main Results:
- Significant association found between cannabis use and increased risk of arrhythmias, particularly atrial fibrillation.
- Higher risk observed in younger males; links to ventricular tachycardia and fibrillation noted in vulnerable individuals.
- Synthetic cannabinoids may pose a greater arrhythmogenic risk due to higher potency.
Conclusions:
- The evidence suggests cannabis use is correlated with an elevated risk of cardiac arrhythmias.
- Rising THC levels in products and limited long-term data necessitate further research.
- Patients with pre-existing heart conditions should refrain from cannabis use pending more data.
Keywords:
ArrhythmiaAtrial fibrillationCannabisMarijuanaTetrahydrocannabinolVentricular fibrillation/tachycardiaMore Related Videos
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