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Updated: Jun 11, 2025

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Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
Published on: August 18, 2020
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Cannabinoids and the heart-a psychiatrist's perspective
Johannes Kramer1, Gabi Koller1, Oliver Pogarell2
1Klinik und Poliklinik für Psychiatrie und Psychotherapie, LMU Klinikum, LMU München, Nußbaumstr. 7, 80336, Munich, Germany.
Herz
|September 27, 2024
Summary
Germany
Area of Science:
- Cardiology
- Psychiatry
- Pharmacology
Background:
- Cannabis legalization in Germany (2024) impacts medical and recreational use.
- Tetrahydrocannabinol (THC) affects cardiovascular function via the endocannabinoid system.
- Cannabis use is linked to cardiovascular events, though research is ongoing.
Purpose of the Study:
- To review the cardiovascular and psychiatric risks associated with cannabis use.
- To inform healthcare professionals about potential patient risks.
- To advocate for interdisciplinary care in managing cannabis-related health issues.
Main Methods:
- Literature review of studies on cannabis and cardiovascular health.
- Analysis of THC and cannabidiol (CBD) effects.
- Examination of psychiatric risks including dependence and psychosis.
Main Results:
- Acute and chronic cannabis use present cardiovascular risks, including potential links to stroke and myocardial infarction.
- Smoking cannabis exacerbates cardiovascular risks, similar to tobacco use.
- Cannabis use is associated with psychiatric risks like dependence and psychosis.
Conclusions:
- Cardiologists must inquire about cannabis use and educate patients on cardiovascular risks.
- Interdisciplinary collaboration between cardiology and psychiatry is crucial for managing cannabis-related health problems.
- The evolving legal landscape necessitates awareness of cannabis's health implications.
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