In a study from the National Health Insurance Service in South Korea, scientists found that full vaccination against COVID-19 is associated with a lower risk for heart disease and stroke 31 to 120 days after COVID-19.
They compared the incidence of heart attack and stroke after COVID-19 (July 2020 to December 2021) between patients who were never vaccinated (62,727 individuals) and those who were fully vaccinated (168,310 individuals) with two doses of mRNA vaccines or a viral vector vaccine against COVID-19.
The researchers found hospitalizations for heart attack and stroke (31 to 120 days after COVID-19 diagnosis) had an incidence of 6.18 versus 5.49 per 1 million person-days for unvaccinated versus vaccinated people.
In the fully vaccinated group, the overall risk was much lower, including for both heart attack and stroke.
While a lower risk for outcome events in fully vaccinated patients was found in all subgroups, it was not significant for those with severe or critical infection.
The findings support vaccination, especially for those with risk factors for heart disease.
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For more information about heart health, please see recent studies that COVID-19 can cause strokes too, and results showing common high blood pressure drugs may reduce bleeding stroke risk.
The study was conducted by Young-Eun Kim et al and published in the Journal of the American Medical Association.
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