title: Vocal nodules and laryngeal morphology.
abstract: Our purpose was to study the occurrence of vocal fold nodules under conditions of habitual vocal abuse associated with increased laryngeal muscle tension, to identify the existence of a relationship between vocal nodules and laryngeal morphology. We studied one group of 30 subjects with vocal nodules, 18 to 50 years old, who were compared with two control groups, one of females and one of males, consisting of 30 subjects each. The parameters evaluated were: type of vocal folds coaptation, glottic proportion (GP) and abduction angle (AA), obtained by videotelelaryngoscopy. In the nodules group, the larynges presented a mean value of GP similar to that of the female group, both of which were lower than the mean GP value of the male group. On the other hand, the mean AA was lower than the one in the female group, and closer to the one in the male group. We concluded that vocal nodules were present only in larynges with a predominantly young female morphology, with functional limitations of abduction.
authors.affiliation: Department of Otolaryngology and Human Communication Disorders at Universidade Federal de São Paulo, Escola Paulista de Medicina, Instituto da Laringe, Brazil. ppontes@inlar.com.br
authors.forename: Paulo
authors.initials: P
authors.lastname: Pontes
authors.forename: Leny
authors.initials: L
authors.lastname: Kyrillos
authors.forename: Mara
authors.initials: M
authors.lastname: Behlau
authors.forename: Noemi
authors.initials: N
authors.lastname: De Biase
authors.forename: Antonio
authors.initials: A
authors.lastname: Pontes
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D005931:Glottis / Q000503:physiopathology*; D006801:Humans; D007818:Laryngeal Diseases / Q000175:diagnosis / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D014827:Vocal Cords / Q000503:physiopathology*; D014833:Voice Quality