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Related Experiment Videos

Clinical problems posed by multiresistant nonfermenting gram-negative pathogens

J P Quinn1

  • 1Department of Medicine, University of Illinois at Chicago, College of Medicine, USA.

Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America
|August 26, 1998
PubMed
Summary
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This review examines opportunistic pathogens Pseudomonas aeruginosa, Acinetobacter baumanii, Stenotrophomonas maltophilia, and Burkholderia cepacia. These bacteria exhibit intrinsic antibiotic resistance and pose significant healthcare challenges.

Area of Science:

  • Medical Microbiology
  • Infectious Diseases
  • Antimicrobial Resistance

Background:

  • Opportunistic pathogens like Pseudomonas aeruginosa, Acinetobacter baumanii, Stenotrophomonas maltophilia, and Burkholderia cepacia are significant threats in healthcare settings.
  • These bacteria are frequently isolated from the environment and are associated with device-related infections.
  • Intrinsic resistance to multiple antibiotics and disinfectants, along with facile transmission via fomites and healthcare personnel, contribute to their clinical importance.

Purpose of the Study:

  • To review the role of specific Gram-negative opportunistic pathogens.
  • To highlight emerging clinical syndromes associated with these bacteria.
  • To discuss the impact of antimicrobial resistance and specific therapeutic agents.

Main Methods:

Related Experiment Videos

  • Literature review of Pseudomonas aeruginosa, Acinetobacter baumanii, Stenotrophomonas maltophilia, and Burkholderia cepacia.
  • Emphasis on intrinsic antibiotic resistance mechanisms.
  • Discussion of clinical syndromes and epidemiological factors.

Main Results:

  • Pseudomonas aeruginosa, Acinetobacter baumanii, Stenotrophomonas maltophilia, and Burkholderia cepacia are significant opportunistic pathogens with intrinsic multidrug resistance.
  • These organisms are linked to device-related infections and environmental persistence.
  • Emerging issues include P. aeruginosa in AIDS patients, carbapenem-selected A. baumanii and S. maltophilia, and B. cepacia in cystic fibrosis.

Conclusions:

  • These opportunistic pathogens represent a growing challenge due to intrinsic resistance and adaptability.
  • Understanding their unique clinical niches and resistance patterns is crucial for effective management.
  • Antimicrobial stewardship and infection control are vital to combat the spread of these multidrug-resistant organisms.