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      Comparação entre a lidocaína e a acupuntura no tratamento da taquicardia ventricular induzida com dopamina em equinos anestesiados com halotano Translated title: Comparative study between lidocaine and acupunture in the treatment of ventricular tachycardia induced by dopamine in horses anesthetized with halothane

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          Abstract

          Os efeitos da lidocaina e da acupuntura nos pontos bilaterais associados ao pericárdio 6 (Pc6-Neiguan) e ao coração 7 (C7-Shenmen), no tratamento da taquicardia ventricular (TV) induzida por dopamina em equinos anestesiados com halotano, foram avaliados e comparados. Seis equinos, distribuídos em três grupos: grupo-controle (GC), grupo tratado com acupuntura (GA) e grupo tratado com lidocaína (GL), foram anestesiados três vezes cada, com intervalo de uma semana entre cada anestesia. Avaliaram-se os parâmetros cardiovasculares (frequência cardíaca, pressão arterial e eletrocardiografia), os respiratórios (frequência respiratória, capnografía, saturação de hemoglobina e hemogasometria) e o escore de recuperação. A dose arritmogênica da dopamina (DAD) foi determinada a partir da infusão de 70µg/kg/min IV durante 10 minutos, sem interrupção, preenchendo o critério arritmogênico: quatro ou mais complexos ventriculares prematuros seguidos, com duração de pelo menos 15 segundos ou TV sustentada. O tempo médio de aparecimento da DAD ou da TV foi de 6,05±0,45 minutos nos animais não tratados, e a TV se reverteu espontaneamente aos 2,7±0,2 minutos. O grupo tratado com acupuntura reverteu a TV no tempo médio de 1,8±0,2 (P<0,05) em relação ao grupo tratado com lidocaina 1,3±0,2 (P<0,01). Os tratamentos mostraram-se eficientes na reversão TV.

          Translated abstract

          The effects of lidocaine and acupuncture in the associated bilateral points, i.e. pericardium 6 (Pc 6- Neiguan) and heart 7 (H7 - Shenmen), on the ventricular tachycardia (VT) induced by dopamine were evaluated in horses anesthetized with halothane. Six horses were distributed in three groups: control group (CG), acupuncture treated group (AG), and lidocaine treated group (LG). They were anesthetized three times each one using halothane with one week interval between each anesthesic procedure. Cardiovascular (heart rate, arterial pressure, and ECG) and respiratory (respiratory rate, capnometry, hemoglobin saturation, and blood gas analysis) parameters and recovery score were evaluated. The arrhythmogenic dose of dopamine (ADD) was determined by the infusion of 70mg/kg/min during 10 minutes without interruption fulfilling the arrhythmogenic criterion by the presence of four or more ectopic ventricular contractions during at least 15 seconds or maintained VT. The mean time for the occurrence of ADD or VT was 6.05 ± 0.45 minutes in no treated animals and the VT reverted spontaneously in 2.7 ± 0.2 minutes. The group treated with acupuncture reverted the VT in a mean time of 1.8 ± 0.2 (P<0.05) compared to the group treated with lidocaine 1.3±0.2 (P<0.01), both of them were efficacious for the treatment of VT.

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          Most cited references20

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          Cardiopulmonary effects of ephedrine in halothane anesthetized horses

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            Equine cardiology

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              Textbook of veterinary internal medicine

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                Author and article information

                Journal
                abmvz
                Arquivo Brasileiro de Medicina Veterinária e Zootecnia
                Arq. Bras. Med. Vet. Zootec.
                Universidade Federal de Minas Gerais, Escola de Veterinária (Belo Horizonte, MG, Brazil )
                0102-0935
                1678-4162
                August 2009
                : 61
                : 4
                : 777-784
                Affiliations
                [01] Botucatu SP orgnameUNESP orgdiv1Faculdade de Medicina Veterinária e Zootecnia
                [02] Lages SC orgnameUDESC orgdiv1Centro de Ciências Agroveterinárias
                Article
                S0102-09352009000400003 S0102-0935(09)06100403
                1afb6d07-356c-45ff-857e-41f54c9fd654

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

                History
                : 27 June 2007
                : 08 April 2009
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 21, Pages: 8
                Product

                SciELO Brazil

                Categories
                Medicina Veterinária

                taquicardia ventricular,halotano,equino,acupuntura,ventricular tachycardia,halothane,acupuncture

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