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      Efectos cardiorrespiratorios de la administración de xilazina-morfina en perros anestesiados con pentobarbital sódico Translated title: Cardiorespiratory effects of the administration of xylazine-morphine in dogs under general anaesthesia with sodium pentobarbital

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          Abstract

          El objetivo del presente estudio fue determinar los cambios fisiológicos cardiorrespiratorios presentados posterior a la administración endovenosa de morfina, xilazina y la asociación xilazina-morfina en perros. Se utilizaron 6 perros, los cuales fueron sometidos a 4 tratamientos, recibiendo posterior a ser anestesiados con pentobarbital sódico (30 mg/kg) a) 5 mi de suero fisiológico; b) 0,4 mg/kg de xilazina; c) 0,4 mg/kg de morfina y d) 0,4 mg/kg de morfina y 0,4 mg/kg de xilazina. Las variables analizadas fueron frecuencia cardíaca, frecuencia respiratoria, presión arterial sistólica, diastólica y media por espacio de una hora y análisis de gases arteriales. Los resultados señalan que la frecuencia cardíaca disminuyó significativamente (P < 0,05) en los grupos tratados con xilazina y la asociación entre xilazina y morfina. La frecuencia respiratoria aumentó en los grupos morfina y xilazina/morfina. La presión arterial aumentó inicialmente en los grupos xilazina y xilazina/morfina, para posteriormente disminuir hasta el final del experimento. El análisis de gases arteriales no presentó diferencias significativas en los diferentes tratamientos. Se concluye que la administración endovenosa de xilazina, morfina y la asociación entre xilazina y morfina produjo cambios significativos en frecuencia cardíaca, frecuencia respiratoria y presión arterial en perros y que no produjo cambios significativos en pH arterial, presión parcial de oxígeno arterial (Pa0(2)), presión parcial de dióxido de carbono arterial (PaC0(2)) y concentración de bicarbonato arterial en perros

          Translated abstract

          Cardiorespiratory effects after the administration of morphine, xylazine and the combination of xylazine and morphine were evaluated. Six young and healthy dogs were used for this study. Each animal received four treatments after being anaesthetized with sodium pentobarbital (30 mg/kg), a) 5 ml of saline; b) 0.4 mg/kg of xylazine; c) 0.4 mg/kg of morphine and d) 0.4 mg/kg of morphine plus 0.4 mg/kg of xylazine. The following variables were analyzed for one hour: heart rate, respiratory rate, systolic, diastolic and mean arterial blood pressure. Also, samples for blood gas analysis during times -5, 1, 5, 10, 15 and 30 were taken. Results obtained show that heart rate diminished significantly (P < 0.05) in xylazine and xylazine/morphine groups. Respiratory rate increased in xylazine and xylazine/morphine groups. Blood pressure increased initially in xylazine and xylazine/morphine groups and later diminished until the end of the experiment. Blood gas analysis did not present significant differences among treatments. It can be concluded that the endovenous administration of xylazine, morphine and xylazine and morphine combination produced significant changes (P < 0.05) in heart rate, respiratory rate and blood pressure and did not produce significant changes (P > 0.05) in arterial pH, Pa0(2), PaC0(2) and bicarbonate in dogs

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          Most cited references46

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          Alpha-2 adrenoceptor agonists: defining the role in clinical anesthesia.

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            Cardiovascular Effects of High Dosages of Fentanyl, Meperdine, and Naloxone in Dogs

            ENNO FREYE (1974)
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              Clinical biochemistry of domestic animals

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                Author and article information

                Journal
                amv
                Archivos de medicina veterinaria
                Arch. med. vet.
                Facultad de Ciencias Veterinarias, Universidad Austral de Chile (Valdivia, , Chile )
                0301-732X
                2007
                : 39
                : 3
                : 215-222
                Affiliations
                [02] Liverpool orgnameUniversity of Liverpool orgdiv1Duncan Building orgdiv2University Clinical Departments U.K.
                [01] Valdivia orgnameUniversidad Austral de Chile orgdiv1Instituto de Ciencias Clínicas Veterinarias Chile
                Article
                S0301-732X2007000300004 S0301-732X(07)03900300004
                9cad75f4-7aca-4b30-b690-01550be169f6

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

                History
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 47, Pages: 8
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                SciELO Chile

                Categories
                ARTICULOS ORIGINALES

                cardiorespiratory,perros,morfina,xilazina,cardiorrespiratorio,dogs,morphine,xylazine

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