RESUMO
OBJECTIVE: The objective of this study is to assess and compare the efficacy of oXiris with conventional continuous renal replacement therapy (CRRT) in managing severe abdominal infections. METHODS: A retrospective analysis encompassing cases from 2017 to 2023 was conducted at the Department of Critical Care Medicine within the First Affiliated Hospital of Fujian Medical University. Parameters including heart rate (HR), mean arterial pressure (MAP), oxygenation index (OI), lactate (Lac), platelet count (PLT), neutrophil ratio (N%), procalcitonin (PCT), C-reactive protein (CRP), interleukin-6 (IL-6), norepinephrine (NE) dosage, acute physiology and chronic health evaluation II (APACHE II), and sequential organ failure assessment (SOFA) were recorded prior to treatment initiation, at 24 hours, and 72 hours post-treatment for both the oXiris and conventional CRRT groups. Additionally, the duration of respiratory support, CRRT treatment, length of stay in the intensive care unit (ICU), total hospitalization period, as well as mortality rates at 14 and 28 days for both groups were recorded. RESULTS: 1) Within the conventional CRRT group, notable enhancement was observed solely in Lac levels at 24 hours post-treatment compared to pre-treatment levels. Also, at 72 hours post-treatment, improvements were evident in HR, Lac, CRP, and IL-6 levels. 2) Conversely, the oXiris group exhibited improvements in HR, MAP, Lac, OI, N%, and IL-6 at 24 hours post-treatment when compared to baseline values. Additionally, reductions were observed in APACHE II and SOFA scores. At 72 hours post-treatment, all parameters demonstrated enhancement except for PLT. 3) Analysis of the changes in the indexes (Δ) between the two groups at 24 hours post-treatment revealed variances in HR, MAP, Lac, NE dosage, CRP levels, IL-6 levels, APACHE II scores, and SOFA scores. 4) The Δ indexes at 72 hours post-treatment indicated more significant improvements following oXiris treatment for both groups, except for PCT. 5) The 14-day mortality rate (24.4%) exhibited a significant reduction in the oXiris group when compared to the conventional group (43.6%). However, no significant difference was observed in the 28-day mortality rate between the two groups. 6) Subsequent to multifactorial logistic regression analysis, the results indicated that oXiris treatment correlated with a noteworthy decrease in the 14-day and 28-day mortality rates associated with severe abdominal infections, by 71.3% and 67.6%, respectively. CONCLUSION: oXiris demonstrates clear advantages over conventional CRRT in the management of severe abdominal infections. Notably, it reduces the fatality rates, thereby establishing itself as a promising and potent therapeutic option.