Also sometimes called Laryngography has become a popular tool for evaluating vocal fold function noninvasively
Electroglottography (EGG)
reflects the surface area of contact of the vocal folds
Lx wave
Duration of closed phase divided by time of entire vibratory cycle
Closed quotient/contact quotient (CQ)
Duration of opening of glottis in relation to entire cycle
Open Quotient (OQ)
Ratio of difference in time between closing and opening phases divided by duration of closed phase
Contact index (CI)
Relative durations of closed and open phases of duty cycle
Close-to-open ratio (C/O ratio)
Ratio of opening-phase duration to closing-phase duration
Speed quotient (SQ)
Used to characterize the aging of the laryngeal mechanism
Presbylarngis
vocal fold changes resulting from the aging process
presbyphonia
Suitable fetal cells are transplanted into the appropriate site in the patient's brain
Fetal cell transplantation (FCT)
...
Deep brain stimulation (DBS)
slight or partial paralysis, resulting in partial loss of the muscle strength and movement
Paresis
Surgical technique to position vocal folds close together and reduce glottal insuffiecieny
Medialization thyroplasty
Surgical technique to rotate the arytenoid cartilages to improve glottal closure
Arytenoid adduction
Involuntary spasms of the vocal folds
Laryngospasms
Procedure in which minute amounts of botuliunum toxin are injected into the vocal folds to alleviate spasms
Botox injection
Wheexzing sound during breathing
Stridor
person's subjective sensation of difficulty and or discomfort during breathing
Dyspnea
Reflux that enters the pharyngeal area and comes into contact with the posterior larynx
laryngopharyngeal reflux (LPR)
Complete removal of the larynx , the individual is not able to produce voice in the normal way
total laryngectomy (TL)
Surgical procedure in which a portion of the larynx is removed
Vertical partial laryngectomy (VPL)