Direct Impact

Concepts for which they have direct influence:

vocal nodules
laryngeal morphology
abduction angle
functional limitations
glottic proportion
lower male

External impact

Concepts related to the work of other authors :

anatomic correlation
muscle tension dysphonia
chronic laryngitis
video recordings
free tension
arytenoid cartilages
vocal nodules

Vocal Nodules and Laryngeal Morphology


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.

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