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Updated: May 13, 2026

Colon Ascendens Stent Peritonitis (CASP) - a Standardized Model for Polymicrobial Abdominal Sepsis
Published on: December 18, 2010
Peritonitis from perforated peptic ulcer and immune response
Mario Schietroma1, Federica Piccione, Francesco Carlei
1Department of Surgery, University of L'Aquila , Coppito , Italy.
Laparoscopic repair of perforated peptic ulcers (PPU) resulted in lower rates of bacteremia, endotoxemia, and systemic inflammation compared to open surgery. This suggests laparoscopy may offer improved outcomes in PPU patients.
Area of Science:
- Surgical Innovation
- Gastroenterology
- Immunology
Background:
- Elevated intra-abdominal pressure during laparoscopy can increase risks of bacteremia and systemic inflammation.
- Perforated peptic ulcer (PPU) with generalized peritonitis presents significant surgical challenges.
- Comparing laparoscopic and open approaches is crucial for managing PPU complications.
Purpose of the Study:
- To compare the acute phase response, immunologic status, and bacterial translocation between laparoscopic and open repair of PPU.
- To evaluate the impact of surgical approach on systemic inflammation and infection markers.
Main Methods:
- A comparative study of 115 patients with PPU: 58 laparoscopic repair (LR) and 57 open repair (OR).
- Investigated markers including bacteremia, endotoxemia, white blood cells, HLA-DR, neutrophil-elastase, IL-1, IL-6, and CRP.
- Data collected from July 2005 to September 2011.
Main Results:
- Laparoscopic repair showed significantly lower bacteremia and endotoxemia one hour post-intervention compared to open repair.
- Open surgery led to increased neutrophil counts, neutrophil-elastase, IL-1, IL-6, and CRP, with a decrease in HLA-DR.
- Intra-abdominal abscesses were significantly less frequent after LR (1.7%) than OR (10.3%).
Conclusions:
- Open repair of PPU with peritonitis increases bacteremia, endotoxemia, and systemic inflammation compared to laparoscopic repair.
- Postoperative inflammation following laparotomy may transiently impair immune defenses (reduced HLA-DR), increasing sepsis risk.
- Laparoscopic approach appears to be a safer and more effective method for PPU management in peritonitis.
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