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Single-use lidocaine hydrochloride 5 per cent w/v and phenylephrine hydrochloride 0.5 per cent w/v topical spray; can it now be employed as a multi-use atomiser?

Published online by Cambridge University Press:  17 September 2020

M Jog ,
I Zudovaite ,
M O'Dwyer ,
K Saeed  and
T Singh
M Jog*
Affiliation:
Department of Otolaryngology, University Hospital Southampton NHS Foundation Trust, UK
I Zudovaite
Affiliation:
Department of Microbiology, University Hospital Southampton NHS Foundation Trust and Microbiology and Innovation Research Unit, UK
M O'Dwyer
Affiliation:
Department of Microbiology, University Hospital Southampton NHS Foundation Trust and Microbiology and Innovation Research Unit, UK
K Saeed
Affiliation:
Department of Microbiology, University Hospital Southampton NHS Foundation Trust and Microbiology and Innovation Research Unit, UK School of Medicine, University of Southampton, UK
T Singh
Affiliation:
Department of Otolaryngology, University Hospital Southampton NHS Foundation Trust, UK
*
Author for correspondence: Mr Mandar Jog, Department of Otolaryngology, Mail point OEN, A Level, Royal South Hants Hospital, Brintons Terrace, SouthamptonSO14 0YG, UK E-mail: [email protected]
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Abstract

Objective

This study investigated the risk of contamination of lidocaine hydrochloride 5 per cent w/v and phenylephrine hydrochloride 0.5 per cent w/v topical solution after modification of the application technique.

Methods

This paper reports a prospective basic sciences study involving 22 study samples and 1 control sample of the lidocaine hydrochloride and phenylephrine hydrochloride topical anaesthetic spray. The samples were assessed for microbiological contamination after a single use on patients using a modified application technique. The modification involves keeping the nozzle (actuator) pressed down whilst withdrawing the spray to at least 30 cm (1 ft) from the patient, before releasing the nozzle (actuator) and subsequently reapplying the spray.

Results

Three of the 23 samples confirmed bacterial growth in the bottle contents, but there was no growth in any of the samples from the pump. These bacteria are considered to be contaminants.

Conclusion

There is a potential to use the lidocaine hydrochloride 5 per cent w/v and phenylephrine hydrochloride 0.5 per cent w/v topical solution as a multi-use spray by changing the actuator between patients. This would have significant beneficial cost implications without the attendant infection control risk.

Keywords

Anesthetics, LocalCross InfectionLidocainePhenylephrineEndoscopyDrug Contamination
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 134 , Issue 9 , September 2020 , pp. 826 - 829
Copyright
Copyright © JLO (1984) Limited, 2020

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Footnotes

Mr M Jog takes responsibility for the integrity of the content of the paper

References

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