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Contamination of reusable electroencephalography electrodes: A multicenter study.

Nancy M Albert1, James F Bena2, Charlotte Ciudad3

  • 1Office of Nursing Research and Innovation, Cleveland Clinic, Cleveland OH.

American Journal of Infection Control
|July 13, 2018
PubMed
Summary

Reusable EEG electrodes can harbor bacteria, posing a risk for hospital-acquired infections. Studies found 25% of cleaned electrodes had bacteria, including potentially harmful species, highlighting the need for infection control measures.

Keywords:
Antibiotic resistanceBacteriaCross-contaminationElectroencephalography (EEG) cup electrodesInfection controlLead wires

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Area of Science:

  • Microbiology
  • Infection Control
  • Medical Devices

Background:

  • Reusable electroencephalography cup electrodes and lead wires (rEEGs-CELWs) are critical for patient monitoring.
  • These devices can potentially harbor microorganisms, contributing to hospital-acquired infections.

Purpose of the Study:

  • To investigate the presence and types of bacterial species on cleaned reusable electroencephalography cup electrodes and lead wires (rEEGs-CELWs).

Main Methods:

  • Microbiologic evaluation of rEEGs-CELWs from four epilepsy monitoring units.
  • Standard swabbing techniques were employed to collect samples for bacterial analysis.
  • Descriptive statistics and logistic regression were used for data analysis.

Main Results:

  • Bacterial cultures were positive in 25% of the 124 swabs analyzed.
  • Identified bacteria included species with no risk, potential risk, and at-risk for hospital-acquired infections.
  • At-risk species like Staphylococcus epidermidis were prevalent; 6.7% of positive cultures showed antibiotic resistance.

Conclusions:

  • A significant percentage of cleaned rEEGs-CELWs harbor bacteria, including potentially pathogenic and antibiotic-resistant strains.
  • The findings suggest a need for enhanced infection control strategies for reusable EEG equipment.
  • Further research into single-use electrodes and scalp infection reduction interventions is recommended.