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      O sevofluorano em psitacídeos (Amazonas aestiva): determinação da dose mínima (d. a. m) para produção de anestesia geral Translated title: Sevoflurane in psitacines (Amazonas aestiva): determination of minimal anesthetic concentration to produce general anesthesia

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          Abstract

          Foram utilizados 10 psitacídeos da espécie Amazonas aestiva (papagaio-verdadeiro). Após contenção física, a anestesia foi induzida com o auxílio de uma máscara facial conectada ao sistema de Maplesson D (BARAKA), utilizando sevofluorano a 6V% e fluxo diluente de O2 de 1,5<IMG SRC="http:/img/fbpe/cr/v32n5/11864s1.gif">/min de oxigênio. A determinação da Dose Anestésica Mínima (DAM) foi estabelecida de maneira similar àquela proposta por LUDDERS et al. (1990). A DAM obtida neste experimento 3,44V%, que eqüivale a concentração alveolar mínima de mamíferos mostrou-se maior nas aves analisadas quando comparada a obtida nos mamíferos. O anestésico mostrou-se bastante seguro para a espécie, não alterando de forma deletéria as variáveis fisiológicas analisadas.

          Translated abstract

          Ten adult psittacines (Amazonas aestiva) were used. After appropriate immobilization the anesthetic induction was accomplished with facial mask connect to modified circuit of Maggil using 6V% of Sevofluorano with oxygen flow rate at 1.5/<IMG SRC="http:/img/fbpe/cr/v32n5/11864s1.gif">. The Minimal Anesthetic Concentration was determined in a manner similar to that proposed by LUDDERS et al. (1990). The MAC obtained was 3.44V%, higher than MAC. proposed to mammals. Sevoflurane can be used safely in avian species once it did not alter significantly all physiological parameters analyzed.

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          Most cited references28

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          Cardiopulmonary effects of sevoflurane, compared with halothane, enflurane, and isoflurane, in dogs.

          To evaluate cardiopulmonary effects of sevoflurane (Sevo), compared with halothane (Hal), enflurane (Enf), and isoflurane (Iso).
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            The Effects of Sevoflurane, Halothane, Enflurane, and Isoflurane on Hepatic Blood Flow and Oxygenation in Chronically Instrumented Greyhound Dogs

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              Airway irritation produced by volatile anaesthetics during brief inhalation: comparison of halothane, enflurane, isoflurane and sevoflurane.

              Eleven male volunteers were studied to compare the airway irritation produced by the four anaesthetic agents: halothane, enflurane, isoflurane and sevoflurane at two concentrations, equivalent to one and two MAC. Tidal volume, respiratory frequency and functional residual capacity changes induced by 15 sec inhalation of the anaesthetics were measured using respiratory inductive plethysmograph. Appearance of the cough reflex was also observed. The order of subjective airway irritation was evaluated by the volunteers. Inhalation of the anaesthetic agents induced a decrease in tidal volume, increase in respiratory frequency and decrease in functional residual capacity. Significant changes were considered to have occurred if tidal volume and respiratory frequency changed by more than 30% from the resting values for at least ten seconds, or if functional residual capacity changed by more than 30% of the value at resting tidal volume, for at least ten seconds. Each change was induced most frequently by isoflurane followed by enflurane, halothane and, least frequently, by sevoflurane. The orders of appearance of the cough reflex and of subjective airway irritation were similar. Sevoflurane did not elicit a cough reflex. It is concluded that sevoflurane was the least irritant anaesthetic and is considered to be the most suitable for inhalational induction of anaesthesia.
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                Author and article information

                Journal
                cr
                Ciência Rural
                Cienc. Rural
                Universidade Federal de Santa Maria (Santa Maria, RS, Brazil )
                0103-8478
                1678-4596
                October 2002
                : 32
                : 5
                : 781-786
                Affiliations
                [01] orgnameUSP orgdiv1Departamento de Cirurgia Veterinária
                [02] orgnameUSP orgdiv1Faculdade de Medicina orgdiv2Departamento de Anestesiologia
                Article
                S0103-84782002000500007 S0103-8478(02)03200507
                5302a10e-b8d7-43de-b7c5-f54c6b9571e8

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 05 December 2001
                : 03 May 2001
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 28, Pages: 6
                Product

                SciELO Brazil

                Categories
                Clínica e Cirurgia

                CAM,anestésicos inalatórios,aves,anestesia inalatória,inhalation anesthetics,avian,inhalation anesthesia

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