Abstract:Objective To investigate the early continuous blood purification (CRRT) combined with abdominal minimally invasive drainage on intra-abdominal pressure (IAP), liver function, and inflammatory indexes in patients with severe acute pancreatitis (SAP).Methods Clinical data of 86 patients with SAP admitted in our hospital from January 2015 to December 2019 were retrospectively analyzed. According to the treatment method, patients were divided into two groups: CRRT was performed in 48 patients (control group), and CRRT combined with abdominal minimally invasive drainage was performed in 38 patients (observation group). The IAP, liver function indicators [aspartate aminotransferase (AST), alanine aminotransferase (AST), total bilirubin (TBil), γ-transpeptidase (γ-GT) ], inflammatory factors [procalcitonin (PCT), C-reactive protein (CRP), interleukin-6 (IL-6) ], acute physiology, and chronic health evaluation scoring system Ⅱ (APACHE Ⅱ) score were compared between the two groups.Results Compared with control group, mechanical ventilation time, IAH duration, WBC normalization time, organ dysfunction duration, and hospital stay in the observation group were significantly shortened, the differences were statistically significant (P < 0.05). The decreased values of the IAP, APACHE Ⅱ score, serum levels of AST, ALT, TBIL, γ-GT, PCT, CRP, and IL-6 of the observation group were significantly higher than the control group, and the differences were statistically significant (P < 0.05). The incidence of multiple organ dysfunction syndrome (MODS) in the observation group was lower than that in the control group (68.43% VS 32.25%), and the difference was statistically significant (P < 0.05).Conclusion Early CRRT combined with abdominal minimally invasive drainage can reduce IAP and inflammatory response in SAP patients, which can reduce the risk of MODS, protect liver function, and promote rehabilitation.