Patients with severe trauma who received transfusion of at least 1 unit of red blood cells (40 studies, n= 11074).
Systematic review on the incidence of thromboembolic events.
A total of 1145 thromboembolic events were reported, yielding an incidence of 10% thromboembolic events. In studies performing routine screening for thromboembolic complications, the incidence ranged from 12% to 23%. The risk of thromboembolic events was increased after administration of tranexamic acid and fibrinogen concentrate. Blood product ratio, the use of prothrombin complex concentrate or recombinant factor VIIa were not associated with thromboembolic events.