Evaluation of laryngeal mask as an alternative to endotracheal intubation in cats anesthetized under spontaneous or controlled ventilation

Detalhes bibliográficos
Autor(a) principal: Cassu, R. N.
Data de Publicação: 2004
Outros Autores: Luna, SPL, Teixeira Neto, Francisco José [UNESP], Braz, JRC, Gasparini, S. S., Crocci, A. J.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1111/j.1467-2987.2004.00195.x
http://hdl.handle.net/11449/10857
Resumo: Objective To compare the cardiorespiratory effects and incidence of gastroesophageal reflux with the use of a laryngeal mask airway (LMA) or endotracheal tube (ET) in anesthetized cats during spontaneous (SV) or controlled ventilation (CV).Study design Prospective randomized experimental trial.Animals Thirty-two adult crossbred cats, weighing 2.7 +/- 0.4 kg.Methods the cats were sedated with intramuscular (IM) methotrimeprazine (0.5 mg kg(-1)) and buprenorphine (0.005 mg kg(-1)), followed 30 minutes later by induction of anesthesia with intravenous (IV) thiopental (12.5-20 mg kg(-1)). An ET was used in 16 cats and an LMA in the remaining 16 animals. Anesthesia was maintained with 0.5 minimum alveolar concentration (0.6%) of halothane in oxygen using a Mapleson D breathing system. Cats in both groups were further divided into two equal groups (n = 8), undergoing either SV or CV. Neuromuscular blockade with pancuronium (0.06 mg kg(-1)) was used to facilitate CV. Heart and respiratory rates, direct arterial blood pressure, capnometry (PE'CO2) and arterial blood gases were measured. Gastric reflux and possible aspiration was investigated by intragastric administration of 5 mL of radiographic contrast immediately after induction of anesthesia. Cervical and thoracic radiographs were taken at the end of anesthesia. Data were analyzed using ANOVA followed by Student-Newman-Keuls, Kruskal-Wallis or Friedman test where appropriate.Results Values for PaCO2 and PE'CO2 were higher in spontaneously breathing cats with the LMA when compared with other groups. Values of PaO2 and hemoglobin oxygen saturation did not differ between groups. Gastroesophageal reflux occurred in four of eight and two of eight cats undergoing CV with ET or LMA, respectively. There was no tracheal or pulmonary aspiration in any cases.Conclusions and clinical relevance the use of an LMA may be used as an alternative to endotracheal intubation in anesthetized cats. Although aspiration was not observed, gastric reflux may occur in mechanically ventilated animals.
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spelling Evaluation of laryngeal mask as an alternative to endotracheal intubation in cats anesthetized under spontaneous or controlled ventilationairwaycatendotracheal intubationgastroesophageal refluxlaryngeal maskObjective To compare the cardiorespiratory effects and incidence of gastroesophageal reflux with the use of a laryngeal mask airway (LMA) or endotracheal tube (ET) in anesthetized cats during spontaneous (SV) or controlled ventilation (CV).Study design Prospective randomized experimental trial.Animals Thirty-two adult crossbred cats, weighing 2.7 +/- 0.4 kg.Methods the cats were sedated with intramuscular (IM) methotrimeprazine (0.5 mg kg(-1)) and buprenorphine (0.005 mg kg(-1)), followed 30 minutes later by induction of anesthesia with intravenous (IV) thiopental (12.5-20 mg kg(-1)). An ET was used in 16 cats and an LMA in the remaining 16 animals. Anesthesia was maintained with 0.5 minimum alveolar concentration (0.6%) of halothane in oxygen using a Mapleson D breathing system. Cats in both groups were further divided into two equal groups (n = 8), undergoing either SV or CV. Neuromuscular blockade with pancuronium (0.06 mg kg(-1)) was used to facilitate CV. Heart and respiratory rates, direct arterial blood pressure, capnometry (PE'CO2) and arterial blood gases were measured. Gastric reflux and possible aspiration was investigated by intragastric administration of 5 mL of radiographic contrast immediately after induction of anesthesia. Cervical and thoracic radiographs were taken at the end of anesthesia. Data were analyzed using ANOVA followed by Student-Newman-Keuls, Kruskal-Wallis or Friedman test where appropriate.Results Values for PaCO2 and PE'CO2 were higher in spontaneously breathing cats with the LMA when compared with other groups. Values of PaO2 and hemoglobin oxygen saturation did not differ between groups. Gastroesophageal reflux occurred in four of eight and two of eight cats undergoing CV with ET or LMA, respectively. There was no tracheal or pulmonary aspiration in any cases.Conclusions and clinical relevance the use of an LMA may be used as an alternative to endotracheal intubation in anesthetized cats. Although aspiration was not observed, gastric reflux may occur in mechanically ventilated animals.Univ Estadual Paulista Julio Mesquita Filho, Fac Vet Med & Anim Sci, FMVZ, Dept Vet Surg & Anaesthesiol, BR-18618000 Botucatu, SP, BrazilUniv Estadual Paulista Julio Mesquita Filho, Fac Med, Dept Anaesthesiol, Botucatu, SP, BrazilBiosci Inst, Dept Stat, Botucatu, SP, BrazilUniv Estadual Paulista Julio Mesquita Filho, Fac Vet Med & Anim Sci, FMVZ, Dept Vet Surg & Anaesthesiol, BR-18618000 Botucatu, SP, BrazilUniv Estadual Paulista Julio Mesquita Filho, Fac Med, Dept Anaesthesiol, Botucatu, SP, BrazilBlackwell PublishingUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Cassu, R. N.Luna, SPLTeixeira Neto, Francisco José [UNESP]Braz, JRCGasparini, S. S.Crocci, A. J.2014-05-20T13:31:52Z2014-05-20T13:31:52Z2004-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article213-221http://dx.doi.org/10.1111/j.1467-2987.2004.00195.xVeterinary Anaesthesia and Analgesia. Oxford: Blackwell Publishing Ltd, v. 31, n. 3, p. 213-221, 2004.1467-2987http://hdl.handle.net/11449/1085710.1111/j.1467-2987.2004.00195.xWOS:00022323810000944732604100996230000-0001-5312-9076Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengVeterinary Anaesthesia and Analgesia2.0640,800info:eu-repo/semantics/openAccess2024-08-14T13:20:25Zoai:repositorio.unesp.br:11449/10857Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-14T13:20:25Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Evaluation of laryngeal mask as an alternative to endotracheal intubation in cats anesthetized under spontaneous or controlled ventilation
title Evaluation of laryngeal mask as an alternative to endotracheal intubation in cats anesthetized under spontaneous or controlled ventilation
spellingShingle Evaluation of laryngeal mask as an alternative to endotracheal intubation in cats anesthetized under spontaneous or controlled ventilation
Cassu, R. N.
airway
cat
endotracheal intubation
gastroesophageal reflux
laryngeal mask
title_short Evaluation of laryngeal mask as an alternative to endotracheal intubation in cats anesthetized under spontaneous or controlled ventilation
title_full Evaluation of laryngeal mask as an alternative to endotracheal intubation in cats anesthetized under spontaneous or controlled ventilation
title_fullStr Evaluation of laryngeal mask as an alternative to endotracheal intubation in cats anesthetized under spontaneous or controlled ventilation
title_full_unstemmed Evaluation of laryngeal mask as an alternative to endotracheal intubation in cats anesthetized under spontaneous or controlled ventilation
title_sort Evaluation of laryngeal mask as an alternative to endotracheal intubation in cats anesthetized under spontaneous or controlled ventilation
author Cassu, R. N.
author_facet Cassu, R. N.
Luna, SPL
Teixeira Neto, Francisco José [UNESP]
Braz, JRC
Gasparini, S. S.
Crocci, A. J.
author_role author
author2 Luna, SPL
Teixeira Neto, Francisco José [UNESP]
Braz, JRC
Gasparini, S. S.
Crocci, A. J.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade de São Paulo (USP)
dc.contributor.author.fl_str_mv Cassu, R. N.
Luna, SPL
Teixeira Neto, Francisco José [UNESP]
Braz, JRC
Gasparini, S. S.
Crocci, A. J.
dc.subject.por.fl_str_mv airway
cat
endotracheal intubation
gastroesophageal reflux
laryngeal mask
topic airway
cat
endotracheal intubation
gastroesophageal reflux
laryngeal mask
description Objective To compare the cardiorespiratory effects and incidence of gastroesophageal reflux with the use of a laryngeal mask airway (LMA) or endotracheal tube (ET) in anesthetized cats during spontaneous (SV) or controlled ventilation (CV).Study design Prospective randomized experimental trial.Animals Thirty-two adult crossbred cats, weighing 2.7 +/- 0.4 kg.Methods the cats were sedated with intramuscular (IM) methotrimeprazine (0.5 mg kg(-1)) and buprenorphine (0.005 mg kg(-1)), followed 30 minutes later by induction of anesthesia with intravenous (IV) thiopental (12.5-20 mg kg(-1)). An ET was used in 16 cats and an LMA in the remaining 16 animals. Anesthesia was maintained with 0.5 minimum alveolar concentration (0.6%) of halothane in oxygen using a Mapleson D breathing system. Cats in both groups were further divided into two equal groups (n = 8), undergoing either SV or CV. Neuromuscular blockade with pancuronium (0.06 mg kg(-1)) was used to facilitate CV. Heart and respiratory rates, direct arterial blood pressure, capnometry (PE'CO2) and arterial blood gases were measured. Gastric reflux and possible aspiration was investigated by intragastric administration of 5 mL of radiographic contrast immediately after induction of anesthesia. Cervical and thoracic radiographs were taken at the end of anesthesia. Data were analyzed using ANOVA followed by Student-Newman-Keuls, Kruskal-Wallis or Friedman test where appropriate.Results Values for PaCO2 and PE'CO2 were higher in spontaneously breathing cats with the LMA when compared with other groups. Values of PaO2 and hemoglobin oxygen saturation did not differ between groups. Gastroesophageal reflux occurred in four of eight and two of eight cats undergoing CV with ET or LMA, respectively. There was no tracheal or pulmonary aspiration in any cases.Conclusions and clinical relevance the use of an LMA may be used as an alternative to endotracheal intubation in anesthetized cats. Although aspiration was not observed, gastric reflux may occur in mechanically ventilated animals.
publishDate 2004
dc.date.none.fl_str_mv 2004-07-01
2014-05-20T13:31:52Z
2014-05-20T13:31:52Z
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 http://dx.doi.org/10.1111/j.1467-2987.2004.00195.x
Veterinary Anaesthesia and Analgesia. Oxford: Blackwell Publishing Ltd, v. 31, n. 3, p. 213-221, 2004.
1467-2987
http://hdl.handle.net/11449/10857
10.1111/j.1467-2987.2004.00195.x
WOS:000223238100009
4473260410099623
0000-0001-5312-9076
url http://dx.doi.org/10.1111/j.1467-2987.2004.00195.x
http://hdl.handle.net/11449/10857
identifier_str_mv Veterinary Anaesthesia and Analgesia. Oxford: Blackwell Publishing Ltd, v. 31, n. 3, p. 213-221, 2004.
1467-2987
10.1111/j.1467-2987.2004.00195.x
WOS:000223238100009
4473260410099623
0000-0001-5312-9076
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Veterinary Anaesthesia and Analgesia
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0,800
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 213-221
dc.publisher.none.fl_str_mv Blackwell Publishing
publisher.none.fl_str_mv Blackwell Publishing
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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