From the number of angioplasties, interventions to unblock the coronary arteries, researchers confirm the link between pollution and heart disease, especially in winter.
Nine out of ten people breathe polluted air on the planet. Undergoing daily pollution is harmful for your health, especially your heart. The European Society of Cadiology publishes a study on the link between pollution, season and angioplasties. Researchers find that these interventions are more numerous in polluted cities and in winter.
Polluted city VS unpolluted city
Angioplasty is a surgical procedure that allows to open one or more coronary arteries. In this new study, researchers used it as a benchmark for assessing heart health. More than 10,000 patients living in polluted areas and more than 5,000 inhabitants of cities with clean air participated in the study: all underwent angioplasty after a heart attack or angina pectoris. Fine particle pollution levels were measured by the calculation of PM10 levels: particles smaller than 10 μm. In polluted cities, it was on average 50.95 μg / m3 against 26.62 μg / m3 in so-called unpolluted cities. With each increase of this level, the number of angioplasties increases whatever the type of city.
The researchers found that people living in areas where pollution is usually low, are more sensitive to changes in air quality: each increase of 1 μg / m3 of the PM10 level adds 0.22 angioplasties per year. week. In comparison, this number increases by 0.18 in polluted cities.
More winter pollution
The time of year also has implications for heart health. Whatever the type of city, the number of angioplasties is higher in winter. "The increase in the incidence of angioplasty in winter is due to the increase in air pollution during this period," says Dr. Januszek, author of the research, which is linked to several factors including artificial heating and to the fog he creates. "
This study will be presented in its entirety at the Congress of the European Society of Cardiology, which is held from August 31 to September 4 in Paris. More than 30,000 health professionals will come together.