A significant new study reinforces concerns that using cannabis may significantly increase the risk of serious heart problems. Published in the international peer-reviewed journal Heart, the research adds to a growing body of evidence linking marijuana use to cardiovascular issues.
The comprehensive review found that adults who use cannabis were 29% more likely than non-users to develop Acute Coronary Syndrome (ACS). Additionally, cannabis users faced a 20% higher likelihood of suffering a stroke compared to those who don’t use marijuana.
Understanding Acute Coronary Syndrome
Acute Coronary Syndrome encompasses conditions caused by a sudden reduction or blockage of blood flow to the heart muscle. This critical situation can lead directly to a heart attack.
The study’s findings are based on an analysis of 24 separate studies conducted between 2016 and 2023. This meta-analysis included data from over 400 million participants, predominantly aged between 19 and 59, providing robust statistical power to its conclusions.
“Our findings are consistent with those from previous reviews, which outlined a positive association between cannabis use and cardiovascular disorders,” the study authors noted. They suggest that increased awareness of this potential risk should prompt healthcare professionals to inquire about cannabis use in all patients presenting with serious heart conditions.
How Might Cannabis Affect the Heart?
While research is still developing, particularly regarding consumption methods beyond smoking, there’s a general understanding of how cannabis might impact the cardiovascular system.
According to information from the Centers for Disease Control and Prevention (CDC) and insights from medical experts, cannabis can cause the heart to beat faster and elevate blood pressure.
Experts believe this increase in blood pressure and heart rate could potentially damage the endothelium, the thin layer of cells lining the coronary arteries. This damage, combined with rapid blood flow, might contribute to the formation of blood clots, known as thrombosis. A blood clot in the coronary arteries can block blood flow (ischemia), starving the heart muscle of oxygen and potentially causing a myocardial infarction, or heart attack.
Consistency with Previous Research
The results of this new study align with earlier research findings on cannabis and heart health. For instance, a study published earlier this year highlighted risks for younger users, finding that people under 50 who consumed marijuana were about 6.2 times more likely to experience a heart attack than non-users in the same age group. That study also indicated younger users were 4.3 times more likely to have an ischemic stroke and double the risk of heart failure.
Similarly, research published last year in the Journal of the American Heart Association concluded that cannabis users generally face higher cardiovascular risks compared to individuals who do not use it.
This consistent pattern across multiple studies underscores the importance of understanding the potential link between cannabis use and cardiovascular health, encouraging further investigation and increased patient awareness.
