Three cases of fatal postoperative thromboembolic complications in patients with liver cirrhosis and bleeding from esophageal varicose veins after COVID-19.

Coronavirus disease (COVID-19), which broke out in China and caused a devastating pandemic worldwide, is associated with a significantly increased risk of thrombotic complications, especially pulmonary embolism. During the COVID-19 pandemic, investigations have reported a high incidence of venous thromboembolic (VTE) events in hospitalized patients with COVID-19, often despite thromboprophylaxis. Current recommendations for thromboprophylaxis are based on randomized clinical trials, which usually exclude patients at а potentially high risk of hemorrhagic complications.