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Predictive value of laryngeal electromyography in patients with vocal cord paralysis of neurogenic origin
Author(s) -
Parnes Steven M.,
SatyaMurti Saty
Publication year - 1985
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1288/00005537-198511000-00005
Subject(s) - cord , electromyography , medicine , paralysis , predictive value , motor unit , vocal cord paralysis , spinal cord , motor function , anatomy , surgery , physical medicine and rehabilitation , psychiatry
Laryngeal electromyography can provide prognostic information when evaluating patients with vocal cord dysfunction. Twentyfour patients were studied to determine the predictive capacity of this test. Six patients had bilateral vocal cord paralysis, constituting a total of 30 vocal cords examined. Sixteen of these cords had decreased or absent motor unit potentials, fibrillations, or positive waves. None of these patients recovered function. Fourteen cords demonstrated either normal motor unit or polyphasic potentials. Return of mobility was evident in 11 of these cords. The combined total was 27 of 30 cords correctly predicted, demonstrating a 90% accuracy rate.