Figure 2

Survival rate of each group. We allocated one point to each of the three prognostic factors (vasopressor dependency index before PMX-DHP greater than 0.499/mmHg, leukocyte count before PMX-DHP less than 1360/μL, and base excess after PMX-DHP less than −6.4 mmol/L), and calculated the prognostic score by adding these points. All patients with a score of 0 (n = 18) were alive after 28 days, whereas the patient with a score of 3 (n = 1) died within 24 h. The survival rates of the patients with a score of 1 (n = 6) and a score of 2 (n = 4) were 67% and 25%, respectively. There were significant differences in survival rates between a score of 0 and a score of 1 (p = 0.0078) and between a score of 0 and a score of 2 (p < 0.0001). Abbreviation: PMX-DHP, direct hemoperfusion with polymyxin B-immobilized fiber.