Covid-19 Raises Risk of Lingering and Serious Blood Clotting, Swedish Study Finds

New enquiry from Sweden is the latest to show that people who contract covid-19 are then more susceptible to other serious health problems down the road . The study regain that covid-19 survivors were more likely to experience blood clotting issues in the calendar week and months following their contagion than those not infected . These risk of exposure were much in high spirits for mass with severe covid-19 , but an increased hazard remained even for those with balmy malady .

The sketch , publishedin the BMJ on Wednesday , looked at the outcomes of over a million Swedish mass who came down with lab - substantiate covid-19 between February 2020 and May 2021 . These residents were compared to people likewise matched in historic period , sex , and residency who had test negative for the coronavirus during the same time period . The researcher were specifically looking for reported cases of deep mineral vein thrombosis , pulmonary intercalation , and bleeding .

Overall , the team detect an increased risk of all three conditions in covid-19 patients , compared to controls — one that remained even long after the contagion would usually be cleared . This increase risk was plain up to 70 day later for inscrutable vein thrombosis , up to 110 24-hour interval for pulmonic embolism , and 60 days later for any kind of hemorrhage .

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“ The findings of this study paint a picture that covid-19 is a risk factor for inscrutable vein thrombosis , pulmonic embolism , and bleeding , ” the investigator wrote .

It ’s already jazz that SARS - CoV-2 infection can stimulate acute heart and cardiovascular problem , specially in hard case . And this is n’t the first work toindicatea link between covid-19 and clotting trouble . But one advantage over past study is that Sweden ’s nationalize wellness tutelage system allow the researchers to cut across virtually every confirmed typesetter’s case of covid-19 in the country during their study period and to easy compare their health to masses without confirmed covid . infection in oecumenical are get it on to be linked to coagulation government issue , but covid-19 might represents a unambiguously greater risk factor than the distinctive infectious disease , the author say . They speculate that could be because the computer virus can taint descent vessel cells or due to its seditious effects on the immune system of rules .

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Like other written report , this inquiry points to a clear spectrum of added risk . More than 6 % of covid-19 patient in the ICU , for instance , originate a case of pulmonary embolism , a life - threatening stipulation triggered by stemma coagulum in the lung , but the same was true for 2 % of hospitalized patients and only 0.02 % of non - hospitalized covid-19 patients . Even those non - hospitalized patients had a relatively high rate of these clots compared to hoi polloi who never caught covid-19 at all ( 0.004 % ) . And while this risk may be small in ecumenical for mild covid-19 case , the bold number of infections still means that a sizable number of people in this group can go through these and other serious health problems .

One important limitation to this and other studies measuring the odds of longer term wellness problems linked to covid-19 is its timing . By belated May 2021 , Sweden had only justopened upvaccine availability to people in their mid-50s , and it would take another month before a majority of adult resident were vaccinated . written report haveconsistently shownthat vaccines subdue the risk of serious and recollective - condition symptom , even in people who contract a breakthrough transmission . So the precise numeral in this study may be less applicable to today ’s situation , where much of the earth has either been immunise and/or survived contagion . The discipline did find that the odds of these problem showing up in people did turn down over time , perhaps in part due to inoculation .

Regardless , there are many people who continue to experience severe covid-19 as well as linger symptoms attributed to infection , while many share of the man remain undervaccinated . And the researchers say that more may need to be done to supervise for and debar these specific job in patients , such as put up preventative treatments for clot to gamy - hazard patients .

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