Selective reinnervation of the abductor and adductor muscles of the canine larynx after recurrent nerve paralysis.
Ann Otol Rhinol Laryngol
; 98(7 Pt 1): 530-6, 1989 Jul.
Article
em En
| MEDLINE
| ID: mdl-2751212
ABSTRACT
Functional rehabilitation of the larynx after unilateral vocal cord paralysis was attempted in the dog by selective reinnervation of the laryngeal muscles. The intralaryngeal branches of the right recurrent nerve were dissected. The adductor branch was anastomosed with the ansa cervicalis; the abductor branch was anastomosed with the trunk of the phrenic nerve either within the larynx or through the recurrent nerve, the adductor branch of which was sectioned. Results could be analyzed in seven dogs mobility of the vocal cord was checked, and electromyography, stimulation of the nerves, and histologic studies were performed. Functional reinnervation of both the adductor and abductor muscles was obtained in only one case, with good abduction. Adduction was recorded in five cases. False-positive results emphasize the necessity of collecting several types of data before concluding that functional reinnervation has been accomplished. The reliability of the procedure can and must be improved.
Buscar no Google
Base de dados:
MEDLINE
Assunto principal:
Nervo Frênico
/
Nervo Laríngeo Recorrente
/
Plexo Cervical
/
Paralisia das Pregas Vocais
/
Músculos Laríngeos
/
Nervos Laríngeos
/
Músculos
Limite:
Animals
Idioma:
En
Ano de publicação:
1989
Tipo de documento:
Article