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Id: lil-711595
Autor: Mencalha, Rodrigo; Fernandes, Neide; Sousa, Carlos Augusto dos Santos; Abidu-Figueiredo, Marcelo.
Título: A cadaveric study to determine the minimum volume of methylene blue to completely color the nerves of brachial plexus in cats. An update in forelimb and shoulder surgeries
Fonte: Acta cir. bras;29(6):382-388, 06/2014. graf.
Idioma: en.
Resumo: PURPOSE: To determine the minimum volume of methylene blue (MB) to completely color the brachial plexus (BP) nerves, simulating an effective anesthetic block in cats. METHODS: Fifteen adult male cat cadavers were injected through subscapular approach with volumes of 2, 3, 4, 5 and 6 ml in both forelimbs, for a total of 30 brachial plexus blocks (BPB). After infusions, the specimens were carefully dissected preserving each nervous branch. The measurement of the effective area was indicated by the impregnation of MB. Nerves were divided into four segments from the origin at the spinal level until the insertion into the thoracic limb muscles. The blocks were considered effective only when all the nerves were strongly or totally colored. RESULTS: Volumes of 2, 3 and 4 ml were considered insufficient suggesting a failed block, however, volumes of 5 and 6 ml were associated with a successful block. CONCLUSIONS: The injection of methylene blue, in a volume of 6 ml, completely colored the brachial plexus. At volumes of 5 and 6 ml the brachial plexus blocks were considered a successful regional block, however, volumes of 2, 3 and 4 ml were considered a failed regional block. .
Descritores: Anestesia Local/veterinária
Plexo Braquial/efeitos dos fármacos
Corantes/administração & dosagem
Membro Anterior/cirurgia
Azul de Metileno/administração & dosagem
Técnicas de Rastreamento Neuroanatômico/métodos
Ombro/cirurgia
-Anestesia Local/métodos
Plexo Braquial/anatomia & histologia
Cadáver
Dissecação
Membro Anterior/inervação
Ilustração Médica
Bloqueio Nervoso/métodos
Valores de Referência
Reprodutibilidade dos Testes
Ombro/inervação
Limites: Animais
Gatos
Masculino
Tipo de Publ: Research Support, Non-U.S. Gov't
Responsável: BR1.1 - BIREME



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