title: Peritoneal pharmacokinetics and pharmacodynamic target attainment of meropenem in patients undergoing abdominal surgery.
abstract: Although meropenem is commonly used for intra-abdominal infections, its penetration into the abdominal cavity is not well understood. Meropenem (500 mg) was administered intravenously to 8 patients with inflammatory bowel diseases undergoing laparotomy. The drug concentrations were analyzed and used for a Monte Carlo simulation with minimum inhibitory concentration (MIC) data. Meropenem concentrations in peritoneal fluid (PF) and plasma were similar at 1 h after the end of a 0.5-h infusion. The probabilities of target achievement of drug concentrations over the MIC in PF for 40% of the dosing interval with 500 mg every 8 h and 1000 mg every 8 h, were 84% and 90% against Bacteroides spp., 98% and 99% against Escherichia coli , and 76% and 83% against Pseudomonas aeruginosa, respectively. In conclusion, meropenem penetrated PF well, and 500 mg every 8 h or 1000 mg every 8 h would be suitable for the therapy for intraabdominal infections.
authors.affiliation: Department of Surgery, Graduate school of Biomedical Sciences, Hiroshima University, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Soga
authors.forename: H
authors.initials: H
authors.lastname: Ohge
authors.forename: K
authors.initials: K
authors.lastname: Ikawa
authors.forename: N
authors.initials: N
authors.lastname: Morikawa
authors.forename: K
authors.initials: K
authors.lastname: Ikeda
authors.forename: T
authors.initials: T
authors.lastname: Sueda
mesh_terms: D000328:Adult; D000900:Anti-Bacterial Agents / Q000493:pharmacokinetics / Q000494:pharmacology*; D019540:Area Under Curve; D001202:Ascitic Fluid / Q000382:microbiology*; D005260:Female; D006090:Gram-Negative Bacteria / Q000187:drug effects*; D006801:Humans; D015212:Inflammatory Bowel Diseases / Q000382:microbiology / Q000601:surgery*; D008297:Male; D000077731:Meropenem; D008657:Metabolic Clearance Rate; D008826:Microbial Sensitivity Tests; D008875:Middle Aged; D009010:Monte Carlo Method; D013845:Thienamycins / Q000493:pharmacokinetics / Q000494:pharmacology*
chemical_list: D000900:Anti-Bacterial Agents; D013845:Thienamycins; D000077731:Meropenem