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January 18, 2021
New data from China show that greater exposure to some forms of air pollution, even in the short term, is linked to an increased risk of dying from myocardial infarction.
The relationship was seen for particulate matter with an aerodynamic diameter of ≤ 2.5 µg (PM
2.5) and ≤ 10 µg (PM
10), as well as for nitrogen dioxide (NO
2), Yuewei Liu, MD, PhD (Sun Yat-sen University, Guangzhou, China), and colleagues report in their paper published online today in the
Journal of the American College of Cardiology.
Earlier studies have shown a connection between air pollution and more-chronic forms of heart disease, as well as for MI itself. This study takes a different angle, the researchers explain. “Because MI is a leading cause of death that accounts for over 30% of all deaths from ischemic heart diseases, it is of great importance to understand whether air pollutant exposures also trigger deaths from MI.”
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Researchers urge patients to continue preventive care for heart disease during the COVID-19 pandemic and not to delay urgent care.
While COVID-19 has already claimed hundreds of thousands of lives in the United States and the death toll continues to climb, new research finds another deadly cost of the pandemic. Deaths from cardiovascular issues spiked in regions of the country that were hit earliest by the pandemic, according to a study published January 2021 in the
The results add credence to previous reports that found some patients feared contracting COVID-19 at the hospital and chose to delay or not seek care at all during medical emergencies last spring. As the United States continues to battle the virus and is currently in the midst of a surge of COVID-19 cases, experts say it’s imperative the public understands that care should not be delayed for vital health issues like heart problems.
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COVID-19 has had an indirect toll on heart health around the world, as cardiovascular testing volumes plummeted and cardiovascular deaths rose in 2020, researchers found.
CDC data revealed that in the first U.S. coronavirus epicenters like New York, the number of people who died from ischemic heart disease and hypertension increased dramatically after mid-March compared with historical controls from the year before.
It remains unclear whether the excess deaths were related to people avoiding necessary medical care for fear of contracting SARS-CoV-2 or reflected other factors, such as undiagnosed COVID-19, according to study authors led by Rishi Wadhera, MD, MPP, MPhil, of Beth Israel Deaconess Medical Center and Harvard Medical School in Boston, reporting in the