Comparison of Pre and Post-operational Phonatory Aerodynamic Parameters in Vocal Polyp and Vocal Cord Palsy Patients

Phonatory Deviation Diagram pre and post vocal rehabilitation.

OBJECTIVE Verify whether PDD reflects vocal changes obtained by vocal rehabilitation and whether it reflects the changes in perceptual analysis. METHODS Samples of the sustained vowel / ε /, pre and post-therapy, from 34 individuals with different dysphonia diagnosis were collected. The voices were acoustically analyzed by the PDD and an auditory perceptual analysis was performed using a visu...

Vocal Cord Palsy

Anatomy of vagus nerve: The vagus nerve arises from three nuclei located in the medulla of brain. They are (DAT) 1. Nucleus ambiguous (Motor) 2. Nucleus dorsalis 3. Nucleus of tractus solitaries Nucleus ambiguus: Is the motor nucleus of the vagus nerve (upper part give fibres to 9 nerve and lower to 10 th ). The efferent fibers of the dorsal nucleus innervates the involuntary muscles of bronchi...

The Effects of Size and Type of Vocal Fold Polyp on Some Acoustic Voice Parameters

Background: Vocal abuse and misuse would result in vocal fold polyp. Certain features define the extent of vocal folds polyp effects on voice acoustic parameters. The present study aimed to define the effects of polyp size on acoustic voice parameters, and compare these parameters in hemorrhagic and non-hemorrhagic polyps.Methods: In the present retrospective study, 28 individuals with hemorrha...

Unilateral Vocal Cord Palsy: An Etiopathological Study

Unilateral vocal cord palsy (UVCP) is not an uncommon finding in ENT practice. It is not a diagnosis by itself. The exact incidence of UVCP has been difficult to find out because of multiple reasons. Many cases are underdiagnosed because of spontaneous recovery or compensation by the opposite cord. Also, a good number of patients with postoperative hoarseness do not undergo a laryngoscopic eval...

Vocal fold vibration patterns and phonatory modes