 Further clinical research in the form of randomized controlled trials is required to determine the effectiveness and safety of this procedure due abdominal or thoracic trauma surgery.The disadvantage of autotransfusion is the depletion of plasma and platelets.The washed autotransfusion system removes the plasma and platelets to eliminate activated clotting factors and activated platelets which would cause coagulopathy if they were reinfused to the patient, generating a packed red blood cell (PRBC) product.