[Influence of pavulon on facial nerve monitoring during middle ear-mastoid operation].
OBJECTIVE
To evaluate the influence of pavulon (muscle relaxant) on facial nerve monitoring for patient with middle ear-mastoid operation during general anesthesia.


METHODS
Intraoperative monitoring of the facial nerve (FNM) was done in 45 ears (44 case). For patient with middle ear-mastoid disease, 38 ears underwent inhaled-intravenous anesthesia with muscle relaxant pavulon (group of general anesthesia), 7 ears underwent local anesthesia (group of local anesthesia). Accelography (ACCG) was used in 10 case for testing the correlation between of FNM and the various degree of recovery from ulnar nerve-musculor blockade.


RESULTS
FNM could be elicited during different periods of recovery with values of T4/T1 varying from 10%-98%. Pavulon could be used to eliminate muscular vibration from disturbing FNM. Electromyography (EMG) potentials were successfully recorded in 34 ears (89.4%). Anesthesia was uneventful and it may be controled satisfactority.


CONCLUSIONS
Considering the advantage of pavulon. It can be used for general anesthesia during intraoperative monitoring of the facial nerve for children or adults suffering from local complicated diseases.
Leng
T
T
Department of Otolaryngology, Tongren Hospital, Beijing 100730.
Zhao
Y
Y
Zhang
B
B
Dai
H
H
Yang
Q
Q
Zhang
X
X
Gao
Y
Y
Li
T
T
Mi
J
J
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D004427:Ear Diseases / Q000601:surgery; D004432:Ear, Middle / Q000601:surgery*; D005154:Facial Nerve / Q000187:drug effects* / Q000503:physiopathology; D005260:Female; D006801:Humans; D008297:Male; D008416:Mastoid / Q000601:surgery*; D008875:Middle Aged; D016343:Monitoring, Intraoperative; D009469:Neuromuscular Junction / Q000187:drug effects / Q000503:physiopathology; D003473:Neuromuscular Nondepolarizing Agents / Q000627:therapeutic use*; D010197:Pancuronium / Q000627:therapeutic use*
D003473:Neuromuscular Nondepolarizing Agents; D010197:Pancuronium