Arytenoid adduction asymmetries in persons with and without voice disorders.
Asymmetry of the arytenoid complex is considered when evaluating a patient for a voice disorder. This study sought to determine if there were differences in arytenoid adduction asymmetry in persons with and without voice disorders. Three aspects of arytenoid adduction asymmetry were judged from still frames of the arytenoids in the adducted position from stroboscopy recordings of 52 vocally normal speakers and 54 persons with voice disorders. Asymmetry of the arytenoids was prevalent in both normophonic and dysphonic speakers. The lack of strong differences in the prevalence of arytenoid asymmetries in the adducted position between normophonic and dysphonic speakers suggests that caution should be taken when using these asymmetries as indicator of or related to a voice disorder.
Bonilha
Heather Shaw
HS
Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, USA. bonilha@sc.edu
O'Shields
Maureen
M
Gerlach
Terri Treman
TT
Deliyski
Dimitar D
DD
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001193:Arytenoid Cartilage / Q000473:pathology / Q000503:physiopathology*; D001696:Biomechanical Phenomena; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D007821:Laryngeal Muscles / Q000473:pathology / Q000503:physiopathology*; D007828:Laryngoscopy; D008297:Male; D008875:Middle Aged; D009657:North Carolina; D010699:Phonation; D013022:South Carolina; D049489:Stroboscopy; D014831:Voice; D014832:Voice Disorders / Q000473:pathology / Q000503:physiopathology*; D055815:Young Adult