Clinical Features of Venous Thromboembolism in Patients With Coronavirus Disease 2019 (COVID-19) in Japan　- A Case Series Study.

BACKGROUND: Suspicion that the coronavirus disease 2019 (COVID-19) caused venous thromboembolism (VTE).Methods and Results:We conducted a case series study of 5 VTE patients with COVID-19 in Japan. The median body mass index was 27.7 kg/m2, and all patients required mechanical ventilation during hospitalization. Patients were diagnosed as VTE in the intensive care unit (ICU), general ward, and outpatient ward. CONCLUSIONS: The current case series study revealed some clinical features of VTE patients with COVID-19 in Japan, including obese patients and those requiring mechanical ventilation during hospitalization, who should be followed closely for VTE, even after leaving the ICU.