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Publish-COVID Danger for Blood Clot Lasts at Least 6 Months


By Robert Preidt HealthDay Reporter
HealthDay Reporter

THURSDAY, April 7, 2022 (HealthDay Information) — COVID-19 will increase individuals’s threat of harmful blood clots and bleeding for months after an infection, researchers say.

The brand new findings counsel that COVID-19 is an impartial threat issue for deep vein thrombosis, pulmonary embolism and bleeding.

“Our findings arguably assist [treatment] to keep away from thrombotic occasions, particularly for high-risk sufferers, and strengthen the significance of vaccination towards COVID-19,” the examine authors concluded within the report revealed April 6 within the BMJ.

Whereas the added threat of clots and bleeding was recognized, it was unclear how lengthy it lasted, the researchers famous in a journal information launch.

To search out out, the investigators in contrast a couple of million individuals in Sweden who examined optimistic for COVID-19 between Feb. 1, 2020, and Might 25, 2021, and a management group of greater than 4 million individuals who didn’t have a optimistic COVID take a look at.

In comparison with the management group, COVID-19 sufferers had a considerably larger threat of deep vein thrombosis, or DVT, (a blood clot within the leg) for as much as three months after an infection; pulmonary embolism (a blood clot within the lung) for as much as six months; and a bleeding occasion for as much as two months.

After accounting for quite a few presumably important components, the researchers concluded that these with COVID-19 had a 5 instances’ larger threat of DVT; a 33-fold larger threat of pulmonary embolism; and a virtually doubled threat of bleeding within the 30 days after an infection.

Deep vein thrombosis occurred in 0.04% of COVID-19 sufferers and 0.01% of management sufferers. Pulmonary embolism occurred in 0.17% of COVID-19 sufferers and 0.004% of management sufferers. And bleeding occasions occurred in 0.10% of COVID-19 sufferers and 0.04% of management sufferers, in accordance with the report.

The dangers of blood clots and bleeding had been highest in sufferers whose COVID-19 was extra extreme, these with different well being circumstances and people contaminated in the course of the first wave somewhat than within the second and third waves. The researchers mentioned that could possibly be defined by improved remedy and vaccine protection in older sufferers after the primary wave.

Even sufferers with gentle COVID-19 had an elevated threat of DVT and pulmonary embolism, the examine discovered. Whereas no elevated threat of bleeding was present in these with gentle COVID, there was a noticeable enhance in sufferers with extra extreme an infection.

The examine was led by Anne-Marie Fors Connolly of the division of medical microbiology at Umeå College in Sweden.

Frederick Ho of the Institute of Well being and Wellbeing on the College of Glasgow in Scotland and his colleagues wrote an editorial that accompanied the findings.

Despite the fact that many nations are eradicating pandemic restrictions and shifting their focus to dwelling with COVID-19, this examine “reminds us of the necessity to stay vigilant to the problems related to even gentle SARS-CoV-2 an infection, together with thromboembolism,” Ho’s workforce wrote.

Extra info

There’s extra on COVID-19 and the blood on the U.S. Nationwide Coronary heart, Lung, and Blood Institute.

SOURCE: BMJ, information launch, April 6, 2022

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