Bacterial contamination of the anesthesia breathing machine: effectiveness of current infection control measures
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://doi.org/10.25751/rspa.27273 |
Resumo: | Background Bacterial contamination of anesthesia breathing machines and its potential hazard for anesthetized patients have been a concern for many decades. Bacterial filters are effective in preventing breathing circuit contamination but clear recommendations about their use are lacking. The objective of this study is to verify whether the current infection control standards for the operating theater at our institution are effective in preventing contamination of the anesthesia breathing machine. Materials and methods For 5 consecutive days, samples were collected from both the inspiratory and expiratory ports of two anesthesia breathing machines. Samples were incubated and followed up for identification of any microorganism. Results A total of 20 samples were collected, and no bacterial growth was observed. Conclusion In this study both the inspiratory and expiratory ports of the anesthesia machine remained sterile when using the Air-Guard Clear (Intersurgical®) in the expiratory port of the breathing circuit, together with a disposable HME filter for each patient. We conclude that the current infection control protocol is effective in preventing bacterial contamination of the anesthesia breathing machine. Despite Intersurgical® only warrantees filter efficacy over 24h, the filter appears to be effective for 5 days. This increased interval in filter change allows the hospital an estimated annual saving of 4.442€. Clear national and international guidelines about breathing circuit management are lacking and regulatory policies would be most welcome. |
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Bacterial contamination of the anesthesia breathing machine: effectiveness of current infection control measuresContaminação bacteriana do ventilador de anestesia: eficácia das medidas atuais de controlo de infecçãoArtigo OriginalBackground Bacterial contamination of anesthesia breathing machines and its potential hazard for anesthetized patients have been a concern for many decades. Bacterial filters are effective in preventing breathing circuit contamination but clear recommendations about their use are lacking. The objective of this study is to verify whether the current infection control standards for the operating theater at our institution are effective in preventing contamination of the anesthesia breathing machine. Materials and methods For 5 consecutive days, samples were collected from both the inspiratory and expiratory ports of two anesthesia breathing machines. Samples were incubated and followed up for identification of any microorganism. Results A total of 20 samples were collected, and no bacterial growth was observed. Conclusion In this study both the inspiratory and expiratory ports of the anesthesia machine remained sterile when using the Air-Guard Clear (Intersurgical®) in the expiratory port of the breathing circuit, together with a disposable HME filter for each patient. We conclude that the current infection control protocol is effective in preventing bacterial contamination of the anesthesia breathing machine. Despite Intersurgical® only warrantees filter efficacy over 24h, the filter appears to be effective for 5 days. This increased interval in filter change allows the hospital an estimated annual saving of 4.442€. Clear national and international guidelines about breathing circuit management are lacking and regulatory policies would be most welcome.Introdução A contaminação bacteriana dos ventiladores de anestesia e o potencial risco para doentes anestesiados tem sido uma preocupação há muitas décadas. Os filtros bacterianos são eficazes na prevenção da contaminação do circuito respiratório, mas faltam claras recomendações sobre a sua utilização. O objetivo deste estudo é verificar se as normas de controlo de infeção para o bloco operatório da nossa instituição são eficazes na prevenção da contaminação do ventilador anestésico. Material e métodos Durante 5 dias consecutivos, foram colhidas amostras das portas inspiratória e expiratória de dois ventiladores de anestesia. As amostras foram incubadas e observadas para identificação de microrganismos. Resultados Um total de 20 amostras foram colhidas e não foi observado crescimento bacteriano. Conclusão Neste estudo, tanto a porta inspiratória como a porta expiratória do ventilador de anestesia permaneceram estéreis com a utilização do filtro Air-Guard Clear (Intersurgical®) na porta expiratória do circuito respiratório, juntamente com um filtro HME descartável para cada doente. Concluímos que o atual protocolo de controlo de infecção é eficaz na prevenção da contaminação bacteriana do ventilador de anestesia. Apesar da Intersurgical® garantir a eficácia do filtro apenas durante 24h, o filtro parece ser eficaz durante 5 dias. Este aumento do intervalo na troca de filtros permite ao hospital uma poupança anual estimada de 4.442€. Não existem normas nacionais nem internacionais claras sobre a gestão de circuitos respiratórios e, portanto, linhas orientadoras precisam-se.Sociedade Portuguesa de Anestesiologia2023-07-04info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://doi.org/10.25751/rspa.27273eng0871-6099Lopes Simões Duarte, Duarte FilipeSousa Glória, AméliaSilva, Ana CristinaPinto, Ana MartaPacheco da Fonte, MarcosDahlem, Carolineinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-05T05:00:12Zoai:ojs.revistas.rcaap.pt:article/27273Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:02:19.478610Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Bacterial contamination of the anesthesia breathing machine: effectiveness of current infection control measures Contaminação bacteriana do ventilador de anestesia: eficácia das medidas atuais de controlo de infecção |
title |
Bacterial contamination of the anesthesia breathing machine: effectiveness of current infection control measures |
spellingShingle |
Bacterial contamination of the anesthesia breathing machine: effectiveness of current infection control measures Lopes Simões Duarte, Duarte Filipe Artigo Original |
title_short |
Bacterial contamination of the anesthesia breathing machine: effectiveness of current infection control measures |
title_full |
Bacterial contamination of the anesthesia breathing machine: effectiveness of current infection control measures |
title_fullStr |
Bacterial contamination of the anesthesia breathing machine: effectiveness of current infection control measures |
title_full_unstemmed |
Bacterial contamination of the anesthesia breathing machine: effectiveness of current infection control measures |
title_sort |
Bacterial contamination of the anesthesia breathing machine: effectiveness of current infection control measures |
author |
Lopes Simões Duarte, Duarte Filipe |
author_facet |
Lopes Simões Duarte, Duarte Filipe Sousa Glória, Amélia Silva, Ana Cristina Pinto, Ana Marta Pacheco da Fonte, Marcos Dahlem, Caroline |
author_role |
author |
author2 |
Sousa Glória, Amélia Silva, Ana Cristina Pinto, Ana Marta Pacheco da Fonte, Marcos Dahlem, Caroline |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Lopes Simões Duarte, Duarte Filipe Sousa Glória, Amélia Silva, Ana Cristina Pinto, Ana Marta Pacheco da Fonte, Marcos Dahlem, Caroline |
dc.subject.por.fl_str_mv |
Artigo Original |
topic |
Artigo Original |
description |
Background Bacterial contamination of anesthesia breathing machines and its potential hazard for anesthetized patients have been a concern for many decades. Bacterial filters are effective in preventing breathing circuit contamination but clear recommendations about their use are lacking. The objective of this study is to verify whether the current infection control standards for the operating theater at our institution are effective in preventing contamination of the anesthesia breathing machine. Materials and methods For 5 consecutive days, samples were collected from both the inspiratory and expiratory ports of two anesthesia breathing machines. Samples were incubated and followed up for identification of any microorganism. Results A total of 20 samples were collected, and no bacterial growth was observed. Conclusion In this study both the inspiratory and expiratory ports of the anesthesia machine remained sterile when using the Air-Guard Clear (Intersurgical®) in the expiratory port of the breathing circuit, together with a disposable HME filter for each patient. We conclude that the current infection control protocol is effective in preventing bacterial contamination of the anesthesia breathing machine. Despite Intersurgical® only warrantees filter efficacy over 24h, the filter appears to be effective for 5 days. This increased interval in filter change allows the hospital an estimated annual saving of 4.442€. Clear national and international guidelines about breathing circuit management are lacking and regulatory policies would be most welcome. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-04 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://doi.org/10.25751/rspa.27273 |
url |
https://doi.org/10.25751/rspa.27273 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0871-6099 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Sociedade Portuguesa de Anestesiologia |
publisher.none.fl_str_mv |
Sociedade Portuguesa de Anestesiologia |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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