• Wei-hui Liu, Li-na Ren, Tao Chen, Li-ye Liu, Jin-heng Jiang, Tao Wang, Chuan Xu, Hong-tao Yan, Xiao-bo Zheng, Fu-qiang Song, and Li-jun Tang.
• 1General Surgery Center of PLA, Chengdu Military General Hospital, Chengdu, Sichuan Province, China. 2Department of Oncology, Chengdu Military General Hospital, Chengdu, Sichuan Province, China.
• Crit. Care Med. 2015 Jan 1; 43 (1): 109-19.

ObjectiveThe efficacy and safety of ultrasound-guided abdominal paracentesis drainage ahead of percutaneous catheter drainage as the new second step of a step-up approach are evaluated.DesignThe observed parameters were compared between groups including mortality, infection, organ failure, inflammatory factor levels, indexes of further interventions, and drainage-related complications.PatientsThis retrospective study included 102 consecutive patients with acute pancreatitis from June 2009 to June 2011.InterventionsIn this step-up approach, all patients subsequently received medical management, percutaneous catheter drainage (with or without previous abdominal paracentesis drainage), and necrosectomy if necessary according to indications. The patients were divided into two groups: 53 cases underwent abdominal paracentesis drainage followed by percutaneous catheter drainage (abdominal paracentesis drainage + percutaneous catheter drainage group) and 49 cases were managed only with percutaneous catheter drainage (percutaneous catheter drainage-alone group).Measurements And Main ResultsThe demographic data and severity scores of the two groups were comparable. The mortality rate was lower in the abdominal paracentesis drainage + percutaneous catheter drainage group (0%) than the percutaneous catheter drainage-alone group (8.2%) (p = 0.050). Compared with the percutaneous catheter drainage-alone group, the laboratory variables of the abdominal paracentesis drainage + percutaneous catheter drainage group decreased more rapidly, the mean number of failed organs was lower, and the interval from the onset of disease to further interventions was much longer. However, there was no significant difference in the prevalence and duration of infections between the two groups.ConclusionApplication of abdominal paracentesis drainage ahead of percutaneous catheter drainage is safe and beneficial to patients by reducing inflammatory factors, postponing further interventions, and delaying or avoiding multiple organ failure.

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