Tuesday , March 9 2021

Influenza vaccine: Possible protection against heart attack – Austria –



An influenza vaccine can protect against heart attacks.


An influenza vaccine can protect against heart attacks.
© APA / BARBARA GINDL

An influenza vaccine can certainly reduce the risk of heart attack. This was emphasized today by the Austrian Association of Vaccine Producers.

Cardiovascular diseases such as heart attack or stroke and influenza are related. According to a study published in the New England Journal of Medicine, the first week after the diagnosis of influenza was particularly critical. The flu vaccine can reduce the risk. The Austrian company Verband der Impfstoffhersteller (ÖVIH) said this in a press release Wednesday.

An influenza vaccine can protect against heart attacks

The risk of heart attack in the first seven days after the infection of the flu is therefore six times greater than in the year before or later. The risk was particularly high in elderly patients, those who had B-viruses and those who had the first infarction.

In the last few years, there are several studies on this subject. Why influenza leads to an increased risk of heart attack and stroke, but it was not entirely understandable, the statement said.

Increased risk of inflammation

Basically, all infections through systemic infections and resulting inflammation lead to an increased risk of cardiovascular disease. However, for influenza, other factors will probably be added. One hypothesis is that the virus leads to clots of existing atherosclerotic plaques (deposits) and thus causes acute coronary occlusion, i.e. Blockade of coronary arteries. Other potential causes include decreased antiinflammatory activity or increased circulation of macrophages (macrophages – "phagocytes" of the immune system) in the arteries.

Deaths from vaccination can be reduced

As early as 2015, another analysis of several studies of hinwetg has shown not only that heart attacks are more common in patients with flu, but also that the vaccine can reduce the risk. The calculated vaccine efficacy was therefore below 30 percent. Cardiovascular deaths will also be reduced by vaccination. According to the Kohrane Library's analysis, among those with bias in the vaccinated group, 2.3 percent of patients died, but more than twice as high (5.1 percent) in the non-vaccinated group.


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