TY - JOUR
T1 - Correlation between stroboscopy and electromyography in laryngeal paralysis
AU - Kokesh, John
AU - Robinson, Lawrence R.
AU - Flint, Paul Warren
AU - Cummings, Charles W.
PY - 1993/11
Y1 - 1993/11
N2 - Twenty patients with vocal fold motion impairment were reviewed to correlate the findings of electromyography (EMG) and stroboscopy. The causes of motion impairment were idiopathic, previous surgery with recurrent laryngeal nerve injury, neck and skull base trauma, and neoplasm. The EMG studies were analyzed to assess the status of innervation of the immobile vocal fold. The presence or absence of the mucosal wave prior to therapeutic intervention was determined with stroboscopic examination. Eight of 10 patients with EMG evidence of reinnervation or partial denervation were found to have mucosal waves, and 3 of 10 patients with EMG evidence of denervation were found to have mucosal waves. Six patients developed mucosal waves after surgical medialization, despite evidence of denervation by EMG criteria. These findings support the premise that tension and subglottic pressure, rather than status of innervation, determine the presence of the mucosal wave.
AB - Twenty patients with vocal fold motion impairment were reviewed to correlate the findings of electromyography (EMG) and stroboscopy. The causes of motion impairment were idiopathic, previous surgery with recurrent laryngeal nerve injury, neck and skull base trauma, and neoplasm. The EMG studies were analyzed to assess the status of innervation of the immobile vocal fold. The presence or absence of the mucosal wave prior to therapeutic intervention was determined with stroboscopic examination. Eight of 10 patients with EMG evidence of reinnervation or partial denervation were found to have mucosal waves, and 3 of 10 patients with EMG evidence of denervation were found to have mucosal waves. Six patients developed mucosal waves after surgical medialization, despite evidence of denervation by EMG criteria. These findings support the premise that tension and subglottic pressure, rather than status of innervation, determine the presence of the mucosal wave.
KW - electromyography
KW - laryngeal paralysis
KW - stroboscopy
UR - http://www.scopus.com/inward/record.url?scp=0027365186&partnerID=8YFLogxK
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U2 - 10.1177/000348949310201105
DO - 10.1177/000348949310201105
M3 - Article
C2 - 8239345
AN - SCOPUS:0027365186
SN - 0003-4894
VL - 102
SP - 852
EP - 857
JO - Annals of Otology, Rhinology & Laryngology
JF - Annals of Otology, Rhinology & Laryngology
IS - 11
ER -