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Updated: Jul 21, 2026

Colon Ascendens Stent Peritonitis (CASP) - a Standardized Model for Polymicrobial Abdominal Sepsis
Published on: December 18, 2010
Secondary peritonitis: severity of disease and activation of peritoneal cells
Objective:
To compare the degree of the inflammatory response of human peritoneum with the severity of peritonitis.
Design:
Clinical laboratory study.
Setting:
University hospital, Germany.
Subjects:
15 patients with diffuse secondary peritonitis and 5 having conventional cholecystectomy (controls) had peritoneal specimens taken from the site of incision.
Main Outcome Measures:
Correlation between presence of indicators of the inflammatory response: interleukin 1 (IL-1), interleukin 6 (IL-6), intercellular adhesion molecule-1 (ICAM-1), antibacterial protein (defensin 3 reflecting the activation of granulocytes), the antibody clone HAM 56 (for detection of local macrophages), and antibodies against macrophage migration inhibiting factor (MIF)-related proteins 8 and 14 (MRP 8 and 14), and clinical state evaluated by the Mannheim Peritonitis Index (MPI), the Peritonitis Index Altona II (PIA II) and the Acute Physiology Score (APS). C-reactive protein (CRP) concentrations were measured preoperatively in the serum.
Results:
Expression of MRP 8 and 14, HAM 56, and defensin 3 was significantly higher in patients with peritonitis than in controls (p < 0.05). Expression of IL-1 and IL-6 was almost undetectable. ICAM-1 expression correlated significantly with phagocytic activation. There was no correlation between clinical scores, CRP, and immunohistochemically detectable variables.
Conclusion:
The pattern of peritoneal inflammatory reactions is relatively uniform and does not correlate with the clinical grading of severity.
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