Massive Pulmonary Thromboembolism in Patients withCOVID-19; Report of Three Cases

COVID-19 is a novel infectious disease, which has challenged people all around the world. As of today, healthcarepractitioners and researchers have made great effort to understand the characteristics and clinical presentationsof the disease; however, the existing literature is still incomplete in this regard. A growing body of evidence in-dicates that coagulopathies and thromboembolic events are of utmost importance in COVID-19 patients andare related to poor prognosis. Here, we report three ICU admitted cases of COVID-19, in which massive pul-monary thromboembolism (PTE) occurred a few days after disease onset. Unfortunately, one of the patients didnot survive and two were treated; one with thrombectomy and other with antithrombotic agents. It seems thatsevere cases of COVID-19 are at risk for developing PTE and in-charge physicians should be prepared and planfor anticoagulant prophylaxis using low-molecular-weight heparin (LMWH).