Tobacco and cannabis consumption could significantly raise heart disease-related deaths in the coming years, with recent studies predicting a 50 per cent surge in mortality over the next five years.
Presented at the ongoing Society for Cardiovascular Angiography and Interventions (SCAI) 2025 annual scientific sessions in Washington, DC, the twin studies revealed alarming links between substance use and cardiovascular complications.
One study projected that tobacco use alone could increase coronary heart disease deaths by 40 per cent. In contrast, individuals diagnosed with cannabis use disorder (CUD) were found to be 50 per cent more likely to suffer from cardiogenic shock, acute myocardial infarction, and arrhythmias.
“Despite major public health campaigns to raise awareness about the harms of tobacco and cannabis, usage remains widespread, and we continue to witness its impact on cardiovascular health,” said James B. Hermiller, President of SCAI.
Ischemic heart disease, also known as coronary heart disease, occurs when reduced blood flow due to narrowed or blocked coronary arteries weakens the heart.
Researchers from Wayne State University in the U.S. analysed data from 1999 to 2020, focusing on tobacco-related ischemic heart disease mortality among individuals aged 25 and older. The analysis projected a 43.7 per cent rise in tobacco-related deaths by 2030. While mortality rates among females showed a decline, deaths among males registered a sharp increase.
“Tobacco-related ischemic heart disease is not merely a problem of the past; it continues to be a leading cause of death. Targeted interventions are essential, especially as vulnerable groups remain disproportionately affected,” said Roopeessh Vempati, lead researcher from Wayne State University.
In a separate study, researchers from Sinai Hospital in the U.S. examined data from over 1.3 million patients admitted with heart failure. Findings indicated that patients with both heart failure and CUD were significantly more prone to severe cardiovascular events. The risk of cardiogenic shock was 27 per cent higher, acute myocardial infarction 50 per cent higher, and arrhythmias 48 per cent higher in this group.
Interestingly, the study noted that patients with CUD had a slightly lower risk of mortality compared to those without the disorder. However, researchers cautioned that the overall cardiovascular risks remained considerably elevated.
“Even if the chance of death is slightly lower, the risk of developing severe cardiovascular conditions such as heart attacks or irregular heartbeat is substantially greater. It is essential for physicians and public health professionals to educate individuals on these risks early, even before heart failure sets in,” said Dr. Syed Ishaq, Internal Medicine resident at Sinai Hospital.
– IANS
