[COVID-19 and venous thromboembolism].

Ann Cardiol Angeiol (Paris)

Unité Inserm U970, Paris centre de recherche cardiovasculaire (PARCC), université de Paris, 75015 Paris, France. Electronic address:

Published: December 2020

AI Article Synopsis

  • COVID-19 is linked to a higher risk of venous thromboembolism (VTE), which can often occur without symptoms and worsen patient outcomes.
  • Risk factors for VTE during COVID-19 include traditional ones like prolonged inactivity, alongside unique factors such as severe age and obesity, which are more common in serious cases.
  • The disease causes inflammation and damage to blood vessel lining, leading to a prothrombotic state; ongoing clinical trials aim to refine anticoagulation treatment for affected patients.

Article Abstract

Coronavirus disease 2019 (COVID-19) is associated with an increased incidence of venous thromboembolism (VTE). Frequently asymptomatic, VTE has a negative impact on patients clinical course. On top of traditional VTE risk factors encountered during COVID-19 such as prolonged bed rest, hypoxemia and intravascular material, main features of patients with severe forms (old age, obesity) explain in part the VTE frequency. In addition, COVID-19 causes an endothelial disease following endotheliitis after the direct invasion of endothelial cells and a prothrombotic state secondary to the strong inflammatory response to infection. Altogether, these mechanisms lead to an extensive immunothrombosis within the pulmonary vasculature. VTE risk stratification to prescribe adequate anticoagulation is an imperious requirement in the COVID-19 treatment. So far, guidelines are mainly based on observational data. Randomized controlled clinical trials are ongoing and will allow to precise the anticoagulant regiment of patients hospitalized for COVID-19.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7522640PMC
http://dx.doi.org/10.1016/j.ancard.2020.09.027DOI Listing

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