Evaluation of a hydrogen peroxide-based system for high-level disinfection of vaginal ultrasound probes

Johnson, Stephen, Proctor, Matthew, Bluth, Edward, Smetherman, Dana, Baumgarten, Katherine, Troxclair, Laurie and Bienvenu, Michele (2013) Evaluation of a hydrogen peroxide-based system for high-level disinfection of vaginal ultrasound probes. Journal of Ultrasound in Medicine, 32 10: 1799-1804. doi:10.7863/ultra.32.10.1799

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Author Johnson, Stephen
Proctor, Matthew
Bluth, Edward
Smetherman, Dana
Baumgarten, Katherine
Troxclair, Laurie
Bienvenu, Michele
Title Evaluation of a hydrogen peroxide-based system for high-level disinfection of vaginal ultrasound probes
Journal name Journal of Ultrasound in Medicine   Check publisher's open access policy
ISSN 0278-4297
Publication date 2013-10-01
Sub-type Article (original research)
DOI 10.7863/ultra.32.10.1799
Open Access Status
Volume 32
Issue 10
Start page 1799
End page 1804
Total pages 6
Place of publication Laurel, MD, United States
Publisher American Institute for Ultrasound in Medicine
Language eng
Formatted abstract
Objectives: Because of the complex process and the risk of errors associated with the glutaraldehyde-based solutions previously used at our institution for disinfection, our department has implemented a new method for high-level disinfection of vaginal ultrasound probes: the hydrogen peroxide-based Trophon system (Nanosonics, Alexandria, New South Wales, Australia). The aim of this study was to compare the time difference, safety, and sonographers' satisfaction between the glutaraldehyde-based Cidex (CIVCO Medical Solutions, Kalona, IA) and the hydrogen peroxide-based Trophon disinfection systems.

Methods: The Institutional Review Board approved a 14-question survey administered to the 13 sonographers in our department. Survey questions addressed a variety of aspects of the disinfection processes with graded responses over a standardized 5-point scale. A process diagram was developed for each disinfection method with segmental timing analysis, and a cost analysis was performed.

Results: Nonvariegated analysis of the survey data with the Wilcoxon signed rank test showed a statistical difference in survey responses in favor of the hydrogen peroxidebased system over the glutaraldehyde-based system regarding efficiency (P = .0013), ease of use (P = .0013), ability to maintain work flow (P = .026), safety (P = .0026), fixing problems (P = .0158), time (P = .0011), and overall satisfaction (P = .0018). The glutaraldehyde-based system took 32 minutes versus 14 minutes for the hydrogen peroxide-based system; the hydrogen peroxide-based system saved on average 7.5 hours per week. The cost of the hydrogen peroxide-based system and weekly maintenance pays for itself if 1.5 more ultrasound examinations are performed each week.

Conclusions: The hydrogen peroxide-based disinfection system was proven to be more efficient and viewed to be easier and safer to use than the glutaraldehyde-based system. The adoption of the hydrogen peroxide-based system led to higher satisfaction among sonographers.
Keyword Infection control
Transvaginal ultrasound
Ultrasound technology
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
School of Medicine Publications
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Citation counts: TR Web of Science Citation Count  Cited 3 times in Thomson Reuters Web of Science Article | Citations
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Created: Sun, 01 Dec 2013, 10:05:33 EST by System User on behalf of School of Medicine