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Ana_Rosa _Otero.pdf: 933122 bytes, checksum: 172dcee08d4bf2f715ad6aa990a20e73 (MD5) / Objetivou-se avaliar os efeitos cardiorrespiratórios e sobre a qualidade da recuperação anestésica, decorrentes da infusão contínua de dexmedetomidina, associada ou não ao midazolam em cadelas submetidas à ovariosalpingohisterectomia. Foram utilizadas 20 cadelas adultas hígidas, distribuídas em dois grupos denominados grupo dexmedetomidina (GD) e grupo dexmedetomidina-midazolam (GDM). Procedeu-se a pré-medicação com atropina (0,044 mg/kg) e, após 15 minutos, administrou-se propofol IV, em dose suficiente para intubação orotraqueal, mantendo-se a anestesia com isofluorano. O grupo GD recebeu dexmedetomidina em bolus (2 μg/kg), seguido de infusão contínua (2 μg/kg/h). O grupo GDM recebeu o mesmo tratamento acrescido do midazolam nas doses de 0,2 mg/kg e 0,2 mg/kg/h, respectivamente. As cadelas foram submetidas à ovariosalpingohisterectomia, registrando-se as variáveis cardiorrespiratórias imediatamente antes da aplicação da dexmedetomidina ou de dexmedetomidina e midazolam (M0) e imediatamente após, em intervalos de 10 minutos durante 40 minutos (M1 a M4). Foram avaliados os tempos e a qualidade da recuperação anestésica. No GD houve aumento inicial das PAS, PAD e PAM e redução da FC. A associação dexmedetomidina-midazolam resultou em maior estabilidade hemodinâmica. Ambos os protocolos são considerados seguros e proporcionam adequada recuperação anestésica. / The aim of this study was to evaluate the cardiorespiratory effects and quality of anesthetic recovery due to the continuous infusion of dexmedetomidine associated or not with midazolam in bitches submitted to ovariosalpingohisterectomy. Twenty healthy adult bitches were used and distributed on two groups named dexmedetomidine group (GD) and dexmedetomidine-midazolam group (GDM). All animals received atropine (0.044 mg/kg) and, after 15 minutes, propofol IV was infused in a dose sufficient to orotracheal intubation and anesthesia was maintained with isofluorane. GD group received bolus administration of dexmedetomidine (2 μg/kg) followed by continuous infusion (2 μg/kg/h). GDM group received the same treatment plus midazolam in a dose of 0.2 mg/kg and 0.2 mg/kg/h respectively. The bitches were submitted to ovariosalpingohisterectomy and cardiorespiratory data were registered immediately before dexmedetomidine or dexmedetomidine and midazolam administration (M0) and immediately after, every ten minutes, for 40 minutes (M1 to M4). Times and quality of anesthetic recovery were evaluated. There were an initial increase of systolic, median and diastolic blood pressure and decrease of heart rate in GD group. The association dexmedetomidine-midazolam resulted on improved hemodynamic stability. Both protocols are considered secure and provide adequate anesthetic recovery.
| Identifer | oai:union.ndltd.org:IBICT/oai:192.168.11:11:ri/20373 |
| Date | 23 September 2015 |
| Creators | Otero, Ana Rosa dos Santos |
| Contributors | Costa Neto, João Moreira da, Barbosa, Vivian Fernanda, Ramalho, Maria José Pedreira, Newton, Nunes, Peixoto, Tiago da Cunha, Costa Neto, João Moreira da |
| Publisher | Universidade Federal da Bahia, Programa de Pós Graduação em Ciência Animal nos Trópicos, UFBA, brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | Portuguese |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFBA, instname:Universidade Federal da Bahia, instacron:UFBA |
| Rights | info:eu-repo/semantics/openAccess |
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