Premium
An in vivo canine model for testing treatment effects in laryngeal hyperadduction disorders
Author(s) -
Green David C.,
Berke Gerald S.
Publication year - 1990
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 - 10.1288/00005537-199011000-00019
Subject(s) - spastic , medicine , in vivo , vocal cord paralysis , larynx , cord , spasmodic dysphonia , paralysis , arytenoid cartilage , thyroid cartilage , anatomy , anesthesia , surgery , botulinum toxin , physical medicine and rehabilitation , biology , microbiology and biotechnology , cerebral palsy
Adductor spastic dysphonia is a voice disorder characterized by a strained, squeezed, effortful voice produced by true and false cord hyperadduction. An in vivo canine model has been developed to simulate hyperadduction of the true cords. Using this model, the thyroarytenoid muscle was found to have a greater effect on intraglottic and subglottic pressure than cricothyroid muscle contraction. The intraglottic and subglottic pressure was reduced after simulated recurrent laryngeal paralysis. This model can be used in future studies to compare laryngeal treatment modalities for disorders that have a component of vocal cord hyperadduction, such as spastic dysphonia.