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The microbiological and sustainability effects of washing anaesthesia breathing circuits less frequently

McGain, F., Algie, C. M., O’Toole, J., Lim, F. T., Mohebbi, M., Story, D. A. and Leder, K. 2014, The microbiological and sustainability effects of washing anaesthesia breathing circuits less frequently, Anaesthesia, vol. 69, no. 4, pp. 337-342, doi: 10.1111/anae.12563.

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Title The microbiological and sustainability effects of washing anaesthesia breathing circuits less frequently
Author(s) McGain, F.
Algie, C. M.
O’Toole, J.
Lim, F. T.
Mohebbi, M.ORCID iD for Mohebbi, M. orcid.org/0000-0001-9713-7211
Story, D. A.
Leder, K.
Journal name Anaesthesia
Volume number 69
Issue number 4
Start page 337
End page 342
Total pages 6
Publisher Wiley-Blackwell
Place of publication Chichester, England
Publication date 2014
ISSN 0003-2409
Summary In the presence of single-use airway filters, we quantified anaesthetic circuit aerobic microbial contamination rates when changed every 24 h, 48 h and 7 days. Microbiological samples were taken from the interior of 305 anaesthetic breathing circuits over a 15-month period (3197 operations). There was no significant difference in the proportion of contaminated circuits when changed every 24 h (57/105 (54%, 95% CI 45–64%)) compared with 48 h (43/100 (43%, 95% CI 33–53%, p = 0.12)) and up to 7 days (46/100 (46%, 95% CI 36–56%, p = 0.26)). Median bacterial counts were not increased at 48 h or 7 days provided circuits were routinely emptied of condensate. Annual savings for one hospital (six operating theatres) were $AU 5219 (£3079, €3654, $US 4846) and a 57% decrease in anaesthesia circuit steriliser loads associated with a yearly saving of 2760 kWh of electricity and 48 000 l of water. Our findings suggest that extended circuit use from 24 h up to 7 days does not significantly increase bacterial contamination, and is associated with labour, energy, water and financial savings.
Language eng
DOI 10.1111/anae.12563
Field of Research 179999 Psychology and Cognitive Sciences not elsewhere classified
110899 Medical Microbiology not elsewhere classified
Socio Economic Objective 920108 Immune System and Allergy
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2014, Wiley-Blackwell
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30066328

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.