High temperature fluctuations cause increased heart attacks

High temperature fluctuations cause increased heart attacks

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Study shows: More heart attacks with strong temperature fluctuations

It has long been known that the weather can have a huge impact on health. A study has now shown that strong temperature fluctuations lead to a significant increase in heart attacks and unstable angina pectoris.

Cold and heat affect the risk of heart attack

According to medical experts, smoking, diabetes, high blood pressure and high cholesterol are among the biggest risk factors for myocardial infarction. But it is also known that the weather influences the risk of cardiovascular diseases. Health experts point out that this risk is increased in heat, but also in high sub-zero temperatures. As reported at the European Cardiology Congress, strong temperature fluctuations apparently have an impact on the likelihood of suffering a heart attack.

No significant difference between days with or without snow

According to a new study, strong temperature fluctuations of more than 17.7 degrees Celsius lead to a significant increase in heart attacks and unstable angina pectoris (acute coronary syndrome) within 24 hours.

Like Prof. Dr. Dirk von Lewinski and Dr. Men from Klemens Ablasser from Graz (Austria) reported at the congress of the European Cardiology Society (ESC) in Munich.

According to a message from the German Society for Cardiology - Cardiovascular Research eV, published by the Science Information Service (idw), contrary to the original assumption of the research team, there was no significant difference between days with or without snowfall in terms of the frequency of acute coronary syndromes .

Accordingly, the risk of a heart attack does not increase even on the days after snowfall when physical exertion is most likely when shoveling snow.

And temperatures below freezing do not significantly affect the occurrence of acute coronary syndromes, says Dr. Discharge.

The increased risk could not be confirmed

For their study in the Graz area, the scientists included 18,075 patients with acute coronary syndromes over a period of eight years who came to a cardiac catheter laboratory for treatment.

Weather data were reported, including hourly records of snowfall, rainfall, and temperature. The subjects included in the study were on average 67 years old and 74 percent men.

In the winter months, snow and cold not only make life more difficult for many, but can also be life-threatening for people with cardiovascular diseases.

As a trigger for a heart attack, snowfall and low temperatures were suspected, especially in combination with physical exertion, such as snow shovels.

However, this could not be confirmed in the new study, with the exception of strong temperature fluctuations. (ad)

Author and source information

Video: Heart Disease Prevention: What You Need to Know (September 2022).


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