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Coronavirus disease 2019 (COVID-19) is associated with significant hypercoagulability. However, despite prophylactic anticoagulation, critically ill patients with this condition develop thromboses. This forum discusses the lungs as the epicenter for the hemostatic issues, puts forward a proposal for staging COVID-19 coagulopathy based on available diagnostic markers, and suggest considering current and future treatment options based on these different stages.
The 3 stages of COVID‐19–associated hemostatic abnormalities (CAHA). In stage 1, regions of…
FIGURE 1
The 3 stages of COVID‐19–associated hemostatic abnormalities (CAHA). In stage 1, regions of microthrombi could be identified throughout the peripheral parenchyma. In stage 2, this extends to most of the lung. In stage 3, further coagulation activation becomes systemic thrombi. aPTT, activated partial thromboplastin time; ICU, intensive care unit; PT, prothrombin time
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