Premium
Photoelectric measurement of laryngeal paralyses correlated with videostroboscopy
Author(s) -
Trapp Terrence K.,
Berke Gerald S.
Publication year - 1988
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 - 10.1288/00005537-198805000-00002
Subject(s) - electroglottograph , phonation , medicine , laryngeal paralysis , larynx , paralysis , glottis , audiology , surgery
Photoglottography and electroglottography are relatively noninvasive techniques that provide detailed information about vocal fold vibration. However, few significant clinical applications have been made by correlating photoelectric waveforms to specific pathologic changes in laryngeal vibration. Videostroboscopy has recently been used to document vibratory patterns of laryngeal paralyses in a canine model of phonation. A study of PGG and EGG waveforms correlated with videostroboscopy in an in‐vivo canine model of phonation with simulated unilateral recurrent or superior laryngeal nerve paralysis is presented. The shift quotient—a new glottographic parameter which identifies flaccid laryngeal paralyses—is presented.