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Sequential cohort study comparing chlorine dioxide wipes with automated washing for decontamination of flexible nasendoscopes

  • C Q Phua (a1), Y Mahalingappa (a1) and Y Karagama (a1)

Abstract

Introduction:

Flexible nasoendoscope is an important tool in otorhinolaryngology practice. The endoscope needs to be decontaminated prior to use in the next patient. The 2005 ENT-UK guidance for cleaning fibre-optic laryngoscopes stated that the ideal disinfecting agent and process should be effective and have low capital and maintenance costs.

Objective:

To compare the efficacy and cost-effectiveness of chlorine dioxide wipes versus automated washer, for decontamination of flexible nasendoscopes.

Methods:

A sequential cohort, in vitro study was performed to test the efficacy of chlorine dioxide wipes and automated washer. Costs were also calculated.

Results:

After deliberate bacterial contamination of the nasendoscope and subsequent decontamination, swab samples from the endoscope showed Staphylococcus epidermidis growth in 2 per cent (1/50 swabs) of the chlorine dioxide wipe group and in 28 per cent (14/50 swabs) of the automated washer group (p = 0.00). Based on a projected 10-year cost calculation, the automated washer was cheaper.

Conclusion:

Further studies are required to test whether these results are replicable. A similar study should be performed using real patients, to check the significance of improper decontamination.

Copyright

Corresponding author

Address for correspondence: Mr Yakubu Karagama, Department of ENT Surgery, Tameside General Hospital, Fountain Street, Ashton OL6 9RW, UK E-mail: y.karagama@nhs.net

Footnotes

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Presented as a poster at the North of England Otolaryngology Spring Meeting, 11 March 2011, Darlington, UK

Footnotes

References

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Keywords

Sequential cohort study comparing chlorine dioxide wipes with automated washing for decontamination of flexible nasendoscopes

  • C Q Phua (a1), Y Mahalingappa (a1) and Y Karagama (a1)

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