Study finds risk of serious blood clots up to six months after Covid-19

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The results show that compared with the control period, risks were significantly increased 90 days after covid-19 for deep vein thrombosis. Photo: Pexels


(British Medical Journal) — A study from Sweden published by The BMJ today finds an increased risk of deep vein thrombosis (a blood clot in the leg) up to three months after covid-19 infection, pulmonary embolism (a blood clot in the lung) up to six months, and a bleeding event up to two months.

The findings also show a higher risk of events in patients with underlying conditions (comorbidities), patients with more severe covid-19, and during the first pandemic wave compared with the second and third waves.

The researchers say these results support measures to prevent thrombotic events (thromboprophylaxis), especially for high risk patients, and strengthen the importance of vaccination against covid-19. (…)

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