Document Detail

Facial nerve evoked potentials in the cat.
MedLine Citation:
PMID:  3128755     Owner:  NLM     Status:  MEDLINE    
Electrophysiologic facial nerve testing usually involves stimulation of the peripheral nerve in order to make some indirect inference about nerve integrity at a more proximal site of lesion. In an attempt to develop a test of facial nerve function by use of across-the-lesion testing, the cat facial nerve was stimulated percutaneously at the stylomastoid foramen while retrograde activity through the temporal bone and cranium was monitored with scalp electrodes. A biphasic evoked potential could be identified within 3 milliseconds of stimulation with the use of a signal-averaging computer. This potential remained when the animal was paralyzed and disappeared when the facial nerve was cut proximal to the stimulation site. A potential of similar latency and duration but larger amplitude was recorded from the subarachnoid space. Mapping studies indicated its origin to be a dipole located between ipsilateral mastoid and parietal recording sites that corresponded to the region of the intracranial facial nerve. Optimal stimulation and recording techniques for subsequent studies of human beings are discussed.
R Metson
Related Documents :
3473925 - A diagnostic adjunct in treatment planning for the dentofacial deformity patient.
11314345 - The expression kinetics of myogenin in facial muscle denervation.
1762785 - Intraoperative facial nerve monitoring.
2757405 - The microanatomical basis of facial frown lines.
20665515 - Alcock canal syndrome due to obturator internus muscle fibrosis.
3836015 - Increased myosin orientation during muscle contraction: a measure of cardiac contractil...
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery     Volume:  98     ISSN:  0194-5998     ISO Abbreviation:  Otolaryngol Head Neck Surg     Publication Date:  1988 Feb 
Date Detail:
Created Date:  1988-05-16     Completed Date:  1988-05-16     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  8508176     Medline TA:  Otolaryngol Head Neck Surg     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  130-7     Citation Subset:  IM    
Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Electric Stimulation
Evoked Potentials*
Facial Nerve / physiology*
Grant Support

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  An objective assessment of voice production after radiation therapy for stage I squamous cell carcin...
Next Document:  The singular canal: a valuable landmark in surgery of the internal auditory canal.