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Incidence and significance of intraperitoneal aerobic and anaerobic bacteria

C E Nord1

  • 1Department of Microbiology, Huddinge University Hospital, Karolinska Institute, Stockholm, Sweden.

Clinical Therapeutics
|January 1, 1990
PubMed

Insights

Intra-abdominal infections are complex, polymicrobial conditions requiring prompt surgical drainage and targeted antimicrobial therapy. Understanding common bacterial culprits like Enterobacteriaceae and Bacteroides fragilis is key for effective treatment.

Area of Science:

  • Infectious Diseases
  • Microbiology
  • Surgical Infections

Background:

  • Intra-abdominal infections (IAIs) are common post-trauma, surgery, or gastrointestinal disease.
  • These infections present diagnostic and therapeutic challenges due to their varied locations and polymicrobial nature.
  • IAIs typically involve 2-5 bacterial strains, with a predominance of anaerobic bacteria.

Purpose of the Study:

  • To review the characteristics of intra-abdominal infections.
  • To highlight common causative microorganisms.
  • To emphasize optimal management strategies.

Main Methods:

  • Review of literature on intra-abdominal infections.
  • Analysis of common aerobic and anaerobic bacterial isolates.
  • Discussion of diagnostic and therapeutic principles.

Main Results:

  • Common aerobic bacteria include Enterobacteriaceae (e.g., Escherichia coli) and enterococci (e.g., Enterococcus faecalis).
  • Predominant anaerobic bacteria are Bacteroides fragilis, anaerobic cocci, and clostridia.
  • Polymicrobial infections are characteristic, often with a dominance of anaerobes.

Conclusions:

  • Effective management of IAIs necessitates adequate surgical drainage and appropriate antimicrobial therapy.
  • Antimicrobial selection should consider infection type, likely pathogens, and local resistance patterns.
  • Patient outcomes are improved by addressing both the infectious burden and the side-effect profile of treatments.

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