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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
Background:
Dermatoscopes are applied directly to cutaneous or mucocutaneous surfaces with immersion fluid (IF) such as oil or alcohol to reduce light reflection. Recently, Staphylococcus aureus has been isolated from dermatosopes that used mineral oil as the IF. Thus, dermatoscopes might be a potential source of nosocomial infection.
Objective:
In this study we propose the use of an alcohol-based antibacterial gel to reduce nosocomial infection transmission while optimizing optical resolution during dermatoscopic examination.
Materials And Methods:
Aerobic bacterial cultures were performed on three dermatoscopes used in an outpatient setting after routine examination of 31 patients with an alcohol-based antibacterial gel as IF.
Results:
There was no bacterial growth after using the antibacterial gel with the dermatoscopes. The optical resolution for the antibacterial gel appeared equal to the 'dermatoscopy oil' and superior to alcohol wipes.
Conclusions:
Alcohol-based antibacterial gel appears to inhibit bacterial colonization while offering excellent optical resolution during dermoscopic examination. The use of alcohol-based IF appears to obviate the risk of nosocomial infections.
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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