Heart attacks, strokes lower after Covid-19 vaccination, says Cambridge University study
It was observed all over the world that the incidence of cardiovascular diseases increased after the COVID-19 pandemic. A study by Cambridge University has said that the incidence of heart attacks and strokes is lower in the people who are vaccinated for Covid-19 as compared to those who are not vaccinated.
Study in UK: A study by the University of Cambridge suggested that the incidence of heart attacks and strokes is reduced among vaccinated people. The research says that in the initial 13 to 24 weeks of the first COVID-19 vaccine, the heart attacks were lower by 10%. After the second dose of the AstraZeneca vaccine, it lowered by 27% and after the second dose of the Pfizer/Biotech vaccine, it was lower by 20%.
Dr Samantha Ip, Research Associate at the Department of Public Health and Primary Care, University of Cambridge and the first co-author said, “We studied COVID-19 vaccines and cardiovascular disease in nearly 46 million adults in England and found a similar or lower incidence of common cardiovascular diseases, such as heart attacks and strokes, following each vaccination than before or without vaccination. This research further supports the large body of evidence on the safety of the COVID-19 vaccination programme, which has been shown to provide protection against severe COVID-19 and saved millions of lives worldwide.”
Professor William Whiteley, Associate Director at the BHF Data Science Centre and Professor of Neurology and Epidemiology at the University of Edinburgh, said: “The COVID-19 vaccination programme rollout began strongly in the UK, with over 90% of the population over the age of 12 vaccinated with at least one dose by January 2022. This England-wide study offers patients reassurance of the cardiovascular safety of first, second and booster doses of COVID-19 vaccines. It demonstrates that the benefits of second and booster doses, with fewer common cardiovascular events including heart attacks and strokes after vaccination, outweigh the very rare cardiovascular complications.”
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Along with the University of Cambridge, this study was jointly conducted by Edinburgh, Bristol and the British Heart Foundation (BHF) Data Science Centre at Health Data Research UK. They de-identified and analysed the health records of 46 million adults in England between 8 December 2020 and 23 January 2022.
The researchers compared this data with the incidence of heart attacks after the Covid-19 vaccination was given to people.
Some of the earlier research had found that rare heart complications increased after the vaccination such as pericarditis and myocarditis were reported after the Pfizer/Biotech vaccine. Also, after the AstraZeneca vaccine, it was seen that vaccine-induced thrombotic thrombocytopenia increased.
"This study supports these findings, but importantly it did not identify new adverse cardiovascular conditions associated with COVID-19 vaccination and offers further reassurance that the benefits of vaccination outweigh the risk," reads the official notification.
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