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A novel approach to stethoscope hygiene: A coat-pocket innovation

Gabriele Messina1, Giuseppe Spataro2, Daniele Rosadini2

  • 1Department of Molecular and Developmental Medicine, University of Siena, via Aldo Moro 2, 53100 Siena, Italy; Post Graduate School of Public Health, University of Siena, via Aldo Moro 2, 53100 Siena, Italy.

Infection, Disease & Health
|May 8, 2024
PubMed
Abstract

Insights

A new portable UV-C device significantly reduced stethoscope membrane contamination by 94.8%. This innovative tool enhances healthcare hygiene by effectively disinfecting medical instruments, promoting patient safety.

Area of Science:

  • Medical Microbiology
  • Infection Control
  • Biomedical Engineering

Background:

  • Stethoscopes are essential healthcare tools frequently contaminated with microbes.
  • Contamination levels on stethoscope diaphragms mirror those on healthcare worker fingertips.
  • There is a need for effective methods to disinfect stethoscope membranes.

Purpose of the Study:

  • To evaluate the efficacy of a novel portable device for disinfecting stethoscope membranes.
  • To assess the reduction in microbial contamination using UV-C radiation.

Main Methods:

  • A cross-sectional study was conducted in four hospital wards.
  • Five wearable UV-C disinfecting devices were used on stethoscope membranes.
  • Microbial colony-forming units (CFU) were quantified on treated and untreated stethoscope membranes.

Main Results:

  • Treated stethoscope membranes showed a 94.8% reduction in CFU compared to untreated membranes.
  • Significant statistical differences (p < 0.001) were observed in microbial load.
  • Reductions ranged from 84.5% to 95.9% across different hospital wards.

Conclusions:

  • The portable UV-C devices are effective and efficient in reducing stethoscope membrane microbial load.
  • The use of these devices can contribute to improved healthcare hygiene practices.
  • Wearing the device may serve as a constant reminder for hygiene maintenance.
Keywords:
DisinfectionHealthcare-associated infectionStethoscopeUV-C

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