Effects on indicators of tissue perfusion in dogs anesthetized with isoflurane at two multiples of the minimum alveolar concentration

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorFloriano, Beatriz P. [UNESP]-
Autor(es): dc.creatorWagatsuma, Juliana T. [UNESP]-
Autor(es): dc.creatorFerreira, Joana Z. [UNESP]-
Autor(es): dc.creatorAbimussi, Caio J.X. [UNESP]-
Autor(es): dc.creatorMenegheti, Thais M. [UNESP]-
Autor(es): dc.creatorSantos, Paulo S. P. [UNESP]-
Autor(es): dc.creatorOliva, Valéria N. L. S. [UNESP]-
Data de aceite: dc.date.accessioned2022-08-04T22:05:14Z-
Data de disponibilização: dc.date.available2022-08-04T22:05:14Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2016-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.2460/ajvr.77.1.24-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/220529-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/220529-
Descrição: dc.descriptionOBJECTIVE To investigate the effects of isoflurane anesthesia administered at 2 multiples of the minimum alveolar concentration (MAC) on tissue perfusion in dogs. ANIMALS 8 healthy young adult Beagles. PROCEDURES A randomized crossover design was used. Dogs were anesthetized with isoflurane at 1.5 or 2.0 times the MAC for 2 hours, a 7-day washout period was provided, and dogs were reanesthetized with the alternate treatment. Various physiologic variables were monitored before anesthesia (baseline), at 20-minute intervals during anesthesia, and after anesthetic recovery. Variable values were compared between MAC multiples by means of repeated-measures ANOVA, with the Tukey test used for multiple comparisons. RESULTS During anesthesia, mean arterial blood pressure, cardiac output, and mixed venous oxygen saturation were significantly greater when isoflurane was administered at 1.5 versus 2.0 times the MAC. Cardiac output gradually increased during anesthesia at 1.5 times but not at 2.0 times the MAC. Arterial blood lactate concentration did not differ between MAC multiples at any point; however, this concentration decreased with increasing anesthetic duration at both MAC multiples. Oxygen delivery differed between MAC multiples, and oxygen consumption differed from baseline during anesthesia at 2.0 times the MAC. Oxygen extraction was higher at 2.0 versus 1.5 times the MAC. Heart rate differed between MAC multiples only after anesthetic recovery. CONCLUSIONS AND CLINICAL RELEVANCE Isoflurane anesthesia impaired tissue perfusion in dogs, but these changes would not be clinically relevant with oxygen delivery at 100%. Peripheral tissue perfusion was maintained or improved with time.-
Descrição: dc.descriptionDepartment of Animal Clinic Surgery and Reproduction São Paulo State University-
Descrição: dc.descriptionDepartment of Animal Clinic Surgery and Reproduction São Paulo State University-
Formato: dc.format24-31-
Idioma: dc.languageen-
Relação: dc.relationAmerican Journal of Veterinary Research-
???dc.source???: dc.sourceScopus-
Título: dc.titleEffects on indicators of tissue perfusion in dogs anesthetized with isoflurane at two multiples of the minimum alveolar concentration-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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