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Long Term Chronic Pseudomonas aeruginosa Airway Infection in Mice
15:43

Long Term Chronic Pseudomonas aeruginosa Airway Infection in Mice

Published on: March 18, 2014

A three-year study of nosocomial infections associated with Pseudomonas aeruginosa

R J Sherertz, F A Sarubbi

    Journal of Clinical Microbiology
    |July 1, 1983
    PubMed

    Insights

    Pseudomonas aeruginosa nosocomial infections are common in hospitals, especially in ICUs and among older patients. Certain serotypes, like type 6, are linked to antibiotic resistance, posing treatment challenges.

    Area of Science:

    • Medical Microbiology
    • Hospital Epidemiology

    Background:

    • Nosocomial infections pose a significant threat in healthcare settings.
    • Pseudomonas aeruginosa is a common opportunistic pathogen causing hospital-acquired infections.

    Purpose of the Study:

    • To investigate the epidemiology and characteristics of nosocomial Pseudomonas aeruginosa infections.
    • To identify risk factors and common infection sites.
    • To analyze serotype distribution and antibiotic resistance patterns.

    Main Methods:

    • Retrospective analysis of 417 nosocomial infections caused by Pseudomonas aeruginosa over 3 years.
    • Data collection on patient demographics, hospital services, and intensive care unit (ICU) exposure.
    • Serotyping of bacterial isolates and antibiotic susceptibility testing.

    Main Results:

    • The overall incidence rate was 5.3 cases per 1,000 patients.
    • Higher infection rates were observed in patients on surgery/medicine services, older patients, and those in burn, surgery, or medicine ICUs.
    • Common infection sites included lower respiratory tract, urinary tract, bloodstream, and surgical wounds.
    • Serotype 6 was most prevalent and associated with resistance to carbenicillin, gentamicin, and tobramycin.
    • 13.2% of isolates were resistant to all three tested antibiotics, with resistance linked to urinary tract infections.

    Conclusions:

    • Pseudomonas aeruginosa nosocomial infections are associated with specific patient populations and hospital units.
    • Serotype 6 is a significant factor in antibiotic resistance, particularly against common antibiotics.
    • The prevalence of multi-drug resistant strains highlights the need for vigilant infection control and antibiotic stewardship.

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