Figure 5From: Prothrombin complex concentrate in surgical patients: retrospective evaluation of vitamin K antagonist reversal and treatment of severe bleedingMean ± standard error of the mean hemoglobin concentrations in patients requiring urgent reversal of vitamin K antagonist therapy (reversal) or with severe bleeding (bleeding). White bars: before (baseline); black bars: after infusion of prothrombin complex concentrate. The mean ± SEM units of red blood cells transfused in each patient group are also shown. Light gray bar: patients requiring urgent reversal of vitamin K antagonist therapy; dark gray bar: patients with severe bleeding. * P < 0.05 vs baseline.Back to article page