Increased levels of D-dimers are associated with a severe course of COVID-19

We evaluated the level of D-dimers and rate of venous thromboembolic events (VTE) in a cohort of 190 patients with suspected COVID-19. After completion of a 30-days follow-up, VTE was diagnosed in 3 patients of the SARSCoV-2-positive group (6.1%) versus 5 patients in the SARS-CoV-2-negative group (3.5%). VTEs in the COVID-19 group predominantly occurred in ICU courses. Disease severity correlated with the maximum level of D-dimers during follow-up in patients with COVID-19.

Rieder et al. Rate of venous thromboembolism in a prospective all-comers cohort with COVID-19J Thromb Thrombolysis (2020).