Larynx and cervical trachea in humidification and heating of inhaled gases

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dc.contributor.authorDias, Norimar Hernandes [UNESP]
dc.contributor.authorBraz, José Reinaldo Cerqueira
dc.contributor.authorMartins, Regina Helena Garcia
dc.contributor.authorCarvalho, Lídia Raquel
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-28T20:00:43Z
dc.date.available2022-04-28T20:00:43Z
dc.date.issued2005-01-01
dc.description.abstractTo evaluate the participation of the larynx and cervical trachea in conditioning inspired gases, we randomly allocated 16 mixed-breed dogs to two groups: group TT (tracheal tube; n = 8) and group LMA (laryngeal mask airway; n = 8). The dogs were anesthetized with pentobarbital sodium and mechanically ventilated for 3 hours. The parameters studied were temperature and absolute humidities of ambient, inhaled, and tracheal air. There was a small increase in tracheal air temperature compared to inhaled air temperature, but no significant difference between groups. The absolute humidity of tracheal air was greater in group LMA than in group TT (23 mg H2O·L-1 and 14 mg H2O·L-1, respectively; p < .0001). The difference in absolute humidity between the tracheal air and the inhaled air was higher in group LMA at all times (p < .0001). We conclude that the larynx and cervical trachea of the dog participate in humidification and heating of inhaled air by means of air contact with mucosa in this airway segment.en
dc.description.affiliationDepartment of Otorhinolaryngology Ophthalmology and Head and Neck Surgery University of São Paulo State, São Paulo
dc.description.affiliationDepartment of Anesthesiology School of Medicine University of São Paulo State, São Paulo
dc.description.affiliationDepartment of Biostatistics Institute of Bioscience University of São Paulo State, São Paulo
dc.description.affiliationDepartamento de Oftalmologia Otorrinolaringologia e Cirurgia de Cabeça e Pescoço Faculdade de Medicina de Botucatu UNESP, Distrito de Rubião Jr. s/n, Botucatu (SP), 18.618-970
dc.description.affiliationUnespDepartamento de Oftalmologia Otorrinolaringologia e Cirurgia de Cabeça e Pescoço Faculdade de Medicina de Botucatu UNESP, Distrito de Rubião Jr. s/n, Botucatu (SP), 18.618-970
dc.format.extent411-415
dc.identifierhttp://dx.doi.org/10.1177/000348940511400514
dc.identifier.citationAnnals of Otology, Rhinology and Laryngology, v. 114, n. 5, p. 411-415, 2005.
dc.identifier.doi10.1177/000348940511400514
dc.identifier.issn0003-4894
dc.identifier.scopus2-s2.0-18744396662
dc.identifier.urihttp://hdl.handle.net/11449/224546
dc.language.isoeng
dc.relation.ispartofAnnals of Otology, Rhinology and Laryngology
dc.sourceScopus
dc.subjectCervical trachea
dc.subjectConditioning of air
dc.subjectDog
dc.subjectLarynx
dc.titleLarynx and cervical trachea in humidification and heating of inhaled gasesen
dc.typeArtigo

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