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Intraperitoneal penetration of cefpirome
1Department of Medical Microbiology, Dudley Road Hospital, Birmingham, UK.
Summary
Cefpirome demonstrated excellent penetration into peritoneal fluid during gastrointestinal surgery, achieving high concentrations rapidly after intravenous administration. This cefpirome pharmacokinetic profile supports its efficacy in preventing surgical site infections.
Area of Science:
- Pharmacology
- Surgical Infectious Diseases
- Clinical Microbiology
Background:
- Surgical site infections (SSIs) are a significant concern in gastrointestinal surgery.
- Prophylactic antibiotics are crucial for preventing SSIs.
- Understanding antibiotic distribution in surgical sites is vital for optimizing treatment.
Purpose of the Study:
- To evaluate the pharmacokinetic profile of cefpirome in serum and peritoneal fluid.
- To determine the penetration rate and half-life of cefpirome in peritoneal fluid.
- To assess the therapeutic implications of cefpirome's distribution in gastrointestinal surgery.
Main Methods:
- Twenty-six patients undergoing elective gastrointestinal surgery were administered 1g intravenous cefpirome.
- Serum and peritoneal fluid samples were collected 0.5-7.6 hours post-administration.
- Cefpirome concentrations were measured using a microbiological assay.
Main Results:
- The mean serum half-life of cefpirome was 2.1 hours.
- Mean peritoneal fluid concentration was 44.4 µg/mL within 0-2 hours post-administration.
- Intraperitoneal penetration reached a mean of 97.7% with a peritoneal fluid half-life of 2 hours.
Conclusions:
- Cefpirome exhibits rapid and extensive penetration into peritoneal fluid.
- The high concentrations and favorable half-life suggest cefpirome's efficacy for SSI prophylaxis in gastrointestinal surgery.
- Pharmacokinetic data support the clinical use of cefpirome in this patient population.