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A randomised, single-blind comparison of high-level disinfectants for flexible nasendoscopes

  • B Hitchcock (a1), S Moynan (a2), C Frampton (a3), R Reuther (a2), P Gilling (a4) and F Rowe (a5)...



To compare the microbiological efficacy, turnaround time, cost, convenience, and patient and user tolerance of Tristel Trio Wipes, PeraSafe solution and Cidex OPA solution for the high-level disinfection of flexible nasendoscopes.


Flexible nasendoscopes were used in routine clinical encounters. They were then disinfected with one of the three disinfectant methods. Surveillance cultures were taken before and after each disinfection process. Data relating to each of the study parameters were recorded.


Positive bacterial cultures were discovered on nasendoscopes disinfected with PeraSafe and Cidex OPA. Tristel Trio Wipes have no capital outlay cost, the lowest running cost, the greatest convenience and the fastest turnaround time. PeraSafe had a faster turnaround time than Cidex OPA, and lower running costs.


Tristel Trio Wipes are equal to PeraSafe and Cidex OPA in terms of microbiological efficacy. Turnaround time and cost are dramatically reduced when using Tristel Trio Wipes compared to the other disinfectant methods.


Corresponding author

Address for correspondence: Dr Brandon Hitchcock, McIndoe Clinic, 15 Brown Street, Tauranga 3110, New Zealand Fax: +64 7 578 3109 E-mail:


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The Journal of Laryngology & Otology
  • ISSN: 0022-2151
  • EISSN: 1748-5460
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