Prevention of nosocomial infection during dermoscopy?

Susan C Kelly1, Stephen M Purcell

  • 1Department of Dermatology, Dartmouth Hitchcock, Keene, New Hampshire 03431, USA. Susan.C.Kelly@Hitchcock.org

Abstract

Insights

Using an alcohol-based antibacterial gel as an immersion fluid (IF) for dermatoscopes effectively prevents bacterial growth. This method optimizes optical resolution, reducing the risk of nosocomial infections during dermatoscopic examinations.

Area of Science:

  • Dermatology
  • Infection Control
  • Medical Devices

Background:

  • Dermatoscopes use immersion fluids (IF) like oil or alcohol to reduce light reflection during examinations.
  • Staphylococcus aureus has been detected on dermatoscopes using mineral oil, indicating a risk of nosocomial infection transmission.
  • Current IFs may pose a risk for spreading infections in clinical settings.

Purpose of the Study:

  • To evaluate an alcohol-based antibacterial gel as an alternative immersion fluid for dermatoscopes.
  • To assess the gel's efficacy in preventing bacterial transmission.
  • To determine if the gel maintains or improves optical resolution during dermatoscopic procedures.

Main Methods:

  • Three dermatoscopes were cultured for aerobic bacteria after routine patient examinations.
  • An alcohol-based antibacterial gel was used as the immersion fluid (IF) during these examinations.
  • Optical resolution was compared between the antibacterial gel, standard dermatoscopy oil, and alcohol wipes.

Main Results:

  • No bacterial growth was observed on dermatoscopes after using the alcohol-based antibacterial gel.
  • The optical resolution provided by the antibacterial gel was comparable to traditional dermatoscopy oil.
  • The antibacterial gel demonstrated superior optical resolution compared to alcohol wipes.

Conclusions:

  • Alcohol-based antibacterial gel effectively inhibits bacterial colonization on dermatoscopes.
  • The gel provides excellent optical resolution, suitable for dermatoscopic examinations.
  • Utilizing alcohol-based antibacterial gel as an immersion fluid can mitigate the risk of nosocomial infections associated with dermatoscopy.

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