Pharmacodynamics and microbiology of trovafloxacin in animal models of surgical infection.

Abstract

Trovafloxacin provides broad in vitro and in vivo coverage of the aerobic and anaerobic pathogens found frequently in surgical infections. In vitro susceptibility testing indicated that trovafloxacin inhibited gram-positive staphylococci and enterococci, numerous gram-negative organisms, including Escherichia coli, and anaerobic pathogens, such as Bacteroides fragilis. Trovafloxacin protected mice from lethal infections induced by gram-negative or gram-positive organisms, even when these organisms were inoculated in combination with B. fragilis. Trovafloxacin protected rats in models of intra-abdominal sepsis induced by inoculation with E. coli and B. fragilis or with multiple aerobic and anaerobic pathogens. In these experimental models, trovafloxacin protected rats from lethal infection, reduced intra-abdominal abscess formation, and inhibited bacterial growth. Drug concentrations were greater in intra-abdominal abscesses than in serum, reflecting the good tissue penetration of trovafloxacin. These results indicate that trovafloxacin may be effective in prophylaxis and treatment of mixed infections in surgical patients.

• Authors: A B Onderdonk
• Journal: American journal of surgery (Am J Surg) Vol. 176 Issue 6A Suppl Pg. 39S-45S (Dec 1998) ISSN: 0002-9610 [Print] United States
• PMID: 9935256 (Publication Type: Journal Article)

Chemical References

• Anti-Infective Agents
• Fluoroquinolones
• Naphthyridines
• trovafloxacin

Topics

• Abdominal Abscess (microbiology, prevention & control)
• Animals
• Anti-Infective Agents (pharmacokinetics, pharmacology)
• Antibiotic Prophylaxis
• Bacteria (drug effects, pathogenicity)
• Bacteroides fragilis (drug effects, pathogenicity)
• Biological Availability
• Disease Models, Animal
• Escherichia coli (drug effects, pathogenicity)
• Fluoroquinolones
• Male
• Mice
• Naphthyridines (pharmacokinetics, pharmacology)
• Rats
• Rats, Sprague-Dawley
• Rats, Wistar
• Surgical Wound Infection (drug therapy, microbiology, prevention & control)