Prevalence and Risk Factors for Venous Thromboembolic Events in Critically Ill Patients With COVID-19

Symptomatic infection with the severe acute respiratory syndrome coronavirus 2 ranges from mild to critical spectrum. About 80% of laboratory confirmed infections presented with mild symptoms, usually not requiring hospitalization. Critical disease requiring respiratory and/or circulatory support was reported in 5% of the subjects. Acute respiratory distress syndrome represents the most common complication in patients with severe disease. Several cases of venous thromboembolism in patients with laboratory confirmed infection have been reported, but it is unclear if this occurrence is higher in this specific patients' population. The purpose of the present study is to assess the prevalence of deep venous thrombosis in patients infected with SARS-CoV-2 admitted to the Intensive care Unit requiring invasive mechanical ventilation using vein ultrasonography.