Intensive Care Medicine

, Volume 38, Issue 1, pp 69–75

Soluble triggering receptor expressed on myeloid cells in severe acute pancreatitis: a biological marker of infected necrosis

  • Zheng Lu
  • Yan Liu
  • Yuan-hang Dong
  • Xian-bao Zhan
  • Yi-qi Du
  • Jun Gao
  • Yan-fang Gong
  • Zhao-shen Li
Original

Abstract

Purpose

The diagnosis and treatment of secondary infection of pancreatic necrotic tissue remain a major challenge. The level of soluble triggering receptor expressed on myeloid cells (sTREM-1) in fine needle aspiration (FNA) fluid may be a good marker of infected necrosis.

Methods

Patients with a clinical suspicion of secondary infection of necrotic tissue were enrolled. The serum levels of C-reactive protein, amylase, procalcitonin (PCT), and sTREM-1 and the fluid levels of sTREM-1, PCT, interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and amylase were examined. When infected necrosis was defined, the first step was percutaneous or endoscopic drainage. If there was no improvement after 72 h, an open necrosectomy was performed.

Results

In 30 patients with suspected infection, 18 patients were diagnosed as having secondary infection of necrotic tissue. The levels of sTREM-1 and PCT in FNA fluid were found to have the closest correlation with the diagnosis of infected necrosis [sTREM-1: area under the receiver operating characteristic curve (AUC) 0.972; 95% confidence interval (95%CI) 0.837–1.000; PCT: AUC 0.903; 95%CI 0.670–0.990, P > 0.05]. A fluid sTREM-1 cutoff value of 285.6 pg/ml had a sensitivity of 94.4% and a specificity of 91.7%. In a multiple logistic regression analysis, an sTREM-1 level of more than 285 pg/ml and a PCT level of more than 2.0 ng/ml in FNA fluid were independent predictors of infected necrosis.

Conclusions

The fluid level of sTREM-1 will help in the rapid and accurate diagnosis of secondary infection of necrotic tissue in patients with severe acute pancreatitis (SAP).

Keywords

Acute pancreatitis Drainage Pancreatic surgery Biological markers/analysis Infection diagnosis ROC curve 

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Copyright information

© Copyright jointly held by Springer and ESICM 2011

Authors and Affiliations

  • Zheng Lu
    • 1
  • Yan Liu
    • 1
  • Yuan-hang Dong
    • 1
  • Xian-bao Zhan
    • 1
  • Yi-qi Du
    • 1
  • Jun Gao
    • 1
  • Yan-fang Gong
    • 1
  • Zhao-shen Li
    • 1
  1. 1.Department of Gastroenterology, Changhai HospitalSecond Military Medical UniversityShanghaiChina

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