[Efficacy of continuous blood purification in treatment of severe acute pancreatitis in children]

Objective: To explore the therapeutic role of bedside continuous blood purification(CBP) in children with severe acute pancreatitis(SAP). Method: The clinical and laboratory data of 11 children with SAP who were admitted to Pediatric Intensive Care Unit (PICU) of Shanghai Children's Hospital from June 2013 to May 2016 were analyzed, including using pediatric critical illness score (PCIS) and pediatric risk of score mortality (PRISM)-Ⅲ score to assessing the severity of the disease.For those patients with severe organ dysfunction, CBP treatment was used when conventional therapy was not efficient.The evolution and prognosis of the disease were observed and analyzed.The measurement data were analyzed by Wilcoxon signed rank test. Result: From June 2013 to May 2016, 11 cases with SAP were treated in PICU, of whom 7 cases had combined multiple organ dysfunction syndrome(MODS). After conservative treatment for 12-24 h, 6 cases with SAP deteriorated aggressively and were treated with CBP.PRISMA and PRISMA flex machines were used with Gambro PRISMA filter, and continuous venovenous hemodiafiltration(CVVHDF) or high volume hemofiltration (HVHF) were chosen as the therapy model.All 6 SAP patients survived after bedside CBP treatment(the median time spent on CBP were 48.5(48.0, 55.5) h). The serum concentration of amylase before and after the CBP treatment were respectively 675(495, 1 334)vs.176(136, 246) U/L, lipase 551(385, 1 075)vs.143(117, 185) U/L, CRP 168(125, 192) vs. 67(28, 87) mg/L, and inflammatory cytokines(TNF alpha 67.2(51.0, 72.9)vs. 22.6(19.3, 31.0) ng/L, IL-6 47.8(35.2, 88.4)vs. 23.6(20.3, 42.9) ng/L, IL-10 21.3(16.8, 23.9)vs. 35.6(26.5, 38.6) ng/L), which were obviously improved after CBP treatment(all P<0.05). And after CBP treatment, partial pressure of oxygen(PaO(2))/fraction of inspiration O(2)(FiO(2)) (192(101, 208)and 240(207, 267) mmHg, 1 mmHg=0.133 kPa), MAP (58.3(56.3, 62.5) and 83.3(74.0, 87.4) mmHg) and PCIS scores (66(62.5, 72)and 92(89, 94) scores) were higher (all P<0.05). Conclusion: CBP in critically ill with SAP can rapidly reduce blood amylase and lipase, help to keep the stable internal environment, block the systemic inflammatory response, improve the organ functions and maintain the fluid balance.CBP treatment may be a potential therapy in children with SAP.