Long-Term Exposure to Air Pollution Associated with Early Signs of Heart Damage
- Researchers led by Kate Hanneman, M.D., published a July 1, 2025 Radiology study linking long-term air pollution exposure to early heart damage in Toronto and other sites.
- The study evaluated 694 patients between 2018 and 2022, including 493 with dilated cardiomyopathy and 201 healthy controls, to explore pollution's effects on myocardial fibrosis.
- Researchers found fine particulate matter exposure associated with greater diffuse myocardial fibrosis, especially in women, smokers, and patients with hypertension.
- For every 1-µg/m³ rise in PM2.5 exposure, patients with cardiomyopathy exhibited an increase of 0.3 in their native T1 z score , while controls showed a 0.27 increase , suggesting greater myocardial scarring.
- The findings underscore air pollution as a cardiovascular risk factor and highlight a need for public health measures to reduce exposure and improve air quality globally.
32 Articles
32 Articles
Long-term exposure to air pollution associated with early signs of heart damage
Researchers using cardiac MRI have found that long-term exposure to air pollution is associated with early signs of heart damage, according to a study that was published today in Radiology, a journal of the Radiological Society of North America (RSNA).
Exposure to air pollution may cause heart damage, cardiac MRI study finds
Researchers using cardiac MRI have found that long-term exposure to air pollution is associated with early signs of heart damage, according to a study that was published in Radiology. The research indicates that fine particulate matter in the air may contribute to diffuse myocardial fibrosis, a form of scarring in the heart muscle that can precede heart failure.
Even Low Levels Of Air Pollution May Quietly Scar Your Heart, MRI Study Finds - Data Intelligence
Researchers using cardiac MRI have found that long-term exposure to air pollution is associated with early signs of heart damage, according to a study that was published today in Radiology, a journal of the Radiological Society of North America (RSNA). The research indicates that fine particulate matter in the air may contribute to diffuse myocardial fibrosis, a form of scarring in the heart muscle that can precede heart failure. Cardiovascular…
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