Swedish researchers found After being infected with coronavirus, the risk of thromboembolism increases for 6 months.
7 Apr BBC A research report from Sweden found that recovered from severe coronavirus infection and those who recovered from the infection in the first wave of outbreaks There is a risk of developing serious blood clots in the next six months, and the researchers say. This underlines the importance of vaccination against the virus.
A major British study found Blood clots can form after vaccination. but the risk is much less accordingly
Covid-19 infected people More prone to blood clots especially patients who need to be hospitalized The researchers wanted to know when that risk would return to normal. It therefore monitors the health of more than 1 million people who tested positive for COVID-19 during February. 2020-May 2021 in Sweden and compared to 4 million people of the same age and sex who did not test positive.
AFP
The researchers found after covid infection The increased risks are as follows:
- Blood clots in the legs or blood clots Deep vein thrombosis (DVT) for up to 3 months
- Pulmonary thrombosis or pulmonary embolism for up to 6 months
- Internal bleeding, such as a stroke, that lasts up to 2 months.
When researchers compared the risk of blood clots after contracting COVID to normal risk levels, they found:
- Four out of 10,000 COVID-19 patients have DVT, compared to 1 in 10,000 who don’t have coronavirus.
- Approximately 17 out of every 10,000 people with coronavirus have a blood clot in their lungs. This compares to less than 1 person in every 10,000 people who don’t get coronavirus.
The study, published in the British Medical Journal (BMJ), said the increased risk of thrombosis in the first wave of outbreaks was higher than in subsequent ones. This may be because the treatment was better during the pandemic. and elderly patients began to be vaccinated in the second wave of outbreaks.
“Good Reasons to Get Vaccinated”
The risk of pulmonary thrombosis in critically ill patients with severe COVID-19 is 290 times higher than normal and seven times higher than normal after contracting mild COVID-19, but there is no risk of visceral bleeding. severe cases of covid
“For those who are not vaccinated, That’s a really good reason. to get vaccinated That risk is much higher than the risk from vaccines.”
However, in this study Researchers can’t prove that coronavirus causes blood clots to form. But there are several theories as to why it happened. This may be a direct effect of the virus on the layers of cells lining the blood vessels. Excessive inflammatory response to the virus or the body causes blood clots to form at inappropriate times
Vaccines are very effective against severe coronavirus. but provides less protection against infection especially with omikron mutants. which means Recurrent infections with symptoms are usually normal. because different countries Finding a way to live with covid
Frederic K. Ho, professor of public health at the University of Glasgow in England, said the study “Reminds us of the need to be cautious of complications associated with mild infection (COVID), including thrombosis.”
“The risk of thrombosis increases after vaccination. But the risks are smaller and for a shorter duration associated with infection,” said Frederiksrim.