In this retrospective study of patients with traumatic brain injury (TBI), the impact of two hematocrit levels (< or ≥ 28%) on morbidity and mortality (Glasgow outcome scale) in the immediate postoperative period was analysed. The authors observed that increasing hematocrit above 28% in TBI patients was not associated with improved or worsened outcome. The best transfusion management in TBI patients is still undetermined. – Charlotte Quentin and Jean-Franois Hardy