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Antibiotic efficacy in intraabdominal sepsis: a clinically relevant model
J M Bohnen1, A G Matlow, R A Mustard
1Department of Surgery, Wellesley Hospital and University of Toronto, Ont., Canada.
Canadian Journal of Microbiology
|March 1, 1988
Summary
This study shows that antibiotics improve outcomes in intraabdominal sepsis, even when treatment is delayed. A new animal model demonstrated reduced mortality in rats receiving cefoxitin after infection onset.
Area of Science:
- Infectious Diseases
- Pharmacology
- Surgical Research
Background:
- Intraabdominal sepsis is a serious condition often requiring delayed antibiotic treatment.
- Existing animal models typically administer antibiotics early, not reflecting clinical practice.
Purpose of the Study:
- To evaluate the efficacy of antibiotics in a novel, clinically relevant animal model of intraabdominal sepsis.
- To assess the impact of delayed antibiotic administration on sepsis outcomes.
Main Methods:
- A new rat model of intraabdominal sepsis was established via cecal ligation and perforation.
- Antibiotics (cefoxitin) or saline were administered 18 hours post-infection, mimicking delayed clinical treatment.
- Mortality rates between antibiotic-treated and control groups were compared.
Main Results:
- Antibiotic treatment with cefoxitin significantly reduced mortality in rats with intraabdominal sepsis (31% vs. 58% in controls, p < 0.005).
- The results support the efficacy of antibiotics even when initiated significantly after infection onset.
Conclusions:
- Delayed antibiotic administration, as modeled in this study, improves outcomes in intraabdominal sepsis.
- This new animal model provides a valuable platform for future research comparing antimicrobial agents for intraabdominal sepsis.