General treatment results Groups Index Total (n = 165) ± SD Group 1 (n = 83) ± SD Group 2 (n = 82) ± SD p Hospitalized days (days) ± SD 8.9 ± 5.21 7.5 ± 5.33 10.1 ± 6.31 <0.05 Min-Max 2 - 21 2 - 18 2 - 21 - ICU length of stay (days) ± SD 4.71 ± 2.55 4.01 ± 2.35 5.51 ± 3.12 <0.05 Min-Max 1 - 9 1 - 8 1 - 9 - Mortality rate (n; ratio) 3 (1.8%) 0 (0%) 3 (3.7%) - y = - 0.0106x + 4.428 r = 0.1196 0 20 40 60 80 100 120 140 SO FA TG (mmol / l) 15 Comment: The average number of hospitalized days was lower than that of the without PEX group. The difference was statistically significant with p <0.05.