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Related Experiment Videos

Clostridium difficile in emergency room.

Gayane Martirosian1, Adam Szczesny, Joseph Silva

  • 1Department of Medical Microbiology, Medical University of Silesia, 18 Medykow Str., Katowice 40-752, Poland. gmartir@slam.katowice.pl

Anaerobe
|May 17, 2006
PubMed
Summary

Clostridium difficile infections are common in emergency room patients, with many strains showing antibiotic resistance. Early detection in ER patients is crucial to prevent hospital-acquired infections.

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Area of Science:

  • Microbiology
  • Infectious Diseases

Background:

  • Clostridium difficile is a major cause of hospital-acquired infections, including antibiotic-associated diarrhea and colitis.
  • Emergency room patients may harbor C. difficile, posing a risk for transmission within healthcare settings.

Purpose of the Study:

  • To determine the frequency of C. difficile infection in emergency room patients.
  • To characterize isolated C. difficile strains phenotypically and genotypically.
  • To assess the potential for C. difficile transmission from environmental sources in the ER.

Main Methods:

  • Culture of stool samples from diarrheic ER patients and environmental samples.
  • Isolation and identification of C. difficile using selective media.
  • Toxinotyping (TcdA, TcdB) and antimicrobial susceptibility testing.

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  • Molecular typing using AP-PCR and PCR-ribotyping.

    • Main Results:

    • Eighteen C. difficile strains were isolated from patients and 5 from environmental samples.
    • Eleven patient isolates were toxigenic (TcdA+/TcdB+), 6 non-toxigenic, and 1 unique TcdA-/TcdB+.
    • Antibiotic resistance (erythromycin, clindamycin) was observed in 5 strains.
    • Genetic heterogeneity was found among patient strains, with similarities to environmental isolates.

    Conclusions:

    • Emergency room patients can be a significant source of C. difficile strains.
    • Routine screening of ER patients for C. difficile is recommended to prevent further spread.
    • Understanding strain characteristics and environmental contamination is key to infection control.