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
Acta cir. bras
; 29(6): 382-388, 06/2014. graf
Article
en En
| LILACS
| ID: lil-711595
Biblioteca responsable:
BR1.1
ABSTRACT
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. .Palabras clave
Texto completo:
1
Índice:
LILACS
Asunto principal:
Hombro
/
Plexo Braquial
/
Colorantes
/
Técnicas de Trazados de Vías Neuroanatómicas
/
Miembro Anterior
/
Anestesia Local
/
Azul de Metileno
Tipo de estudio:
Diagnostic_studies
Límite:
Animals
Idioma:
En
Revista:
Acta cir. bras
Asunto de la revista:
CIRURGIA GERAL
/
Procedimentos Cir£rgicos Operat¢rios
Año:
2014
Tipo del documento:
Article