Abstract
Objective: To explore the experience and prognostic factors associated with the employment of the step-up approach in the treatment of local complications secondary to severe acute pancreatitis (SAP). Methods: The clinical data of 279 patients admitted to the Department of Pancreatic and Biliary Surgery, First Affiliated Hospital of Harbin Medical University from January 2011 to December 2015, whose local complications secondary to SAP were treated in a staged step-up framework, were retrospectively analyzed.For patients with documented or suspected infected pancreatic necrosis or gastrointestinal tract obstruction, some non-surgical interventions were initialed with the aim of postponing the timing of surgery to the forth week from the onset of SAP.The first-step intervention was a percutaneous catheter drainage (PCD) under the guidance of ultrasound. A minimal access retroperitoneal pancreatic necrosectomy, representing the second-step intervention, was conducted when PCD had failed. Finally, an open necrosectomy (the third-step intervention) was immediately resorted to when all of previous minimal invasive interventions had failed.Normally distributed quantitative variables were analyzed by t-test, non-normally distributed quantitative variables were analyzed by Wilcoxon chi-square test and categorical variables were analyzed by χ2 test or Fisher's exact test.A multivariable Logistic regression analytic model was established to figure out the prognostic factors that were independently associated with the requirement of debridement in addition to drainage procedure during the staged step-up framework of patients with local complications secondary to SAP. Results: The initial interventions in this series were performed at 12 d (9-22 d) from the on-set of SAP and 104 cases (37.3%) were cured with ultrasound guided PCD alone.There were 152 cases (54.5%) cured by debridement in addition to PCD with the time interval of 30 d (25 to 44 d) since the on-set of the disease.The overall incidence of postoperative complications was 22.6% (63 cases) and in-hospital mortality was 8.2% (23 cases) in the present series.Multiple organ failures(MOF)(P<0.01, OR=3.15), heterogeneous collections (P<0.01, OR=2.40) and tertiary transfer (P=0.03, OR=1.80) were verified as the prognostic factors that were independently associated with the requirement of debridement in addition to PCD during the staged step-up framework of patients with local complications secondary to SAP. Conclusions: The staged step-up framework is a promising innovation that complies well with the era of minimal invasive surgery and is optimally suitable for the surgical interventions against SAP.MOF, heterogeneous collections and tertiary transfer are the prognostic factors that are independently associated with the requirement of debridement in addition to PCD during the staged step-up framework of patients with local complications secondary to SAP.
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More From: Zhonghua wai ke za zhi [Chinese journal of surgery]
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