Pulmonary Embolism Developing Despite the Use of Anticoagulants in Covid-19 Pneumonia: A case report

was initiated for the patient. He developed sudden respiratory distress and showed an increase in oxygen demand. D-dimer value increased abruptly to 35.2 mg/L. Pulmonary CT angiography showed multiple bilateral subsegmental pulmonary embolisms. Since COVID-19 infection can cause arterial and venous thromboembolic events in patients following up with COVID-19 pneumonia, prophylactic anticoagulation should be initiated in hospitalized patients. Attention should be paid to signs of bleeding, and dose adjustment should be made by monitoring coagulation parameters.