The Relationship Between the Aerodynamic Parameters of Voice and Perceptual Evaluation in the Iranian Population With or Without Voice Disorders

Aghajanzadeh, Mahshid; Darouie, Akbar; Dabirmoghaddam, Payman; Salehi, Abolfazl; Rahgozar, Mehdi

doi:10.1016/j.jvoice.2016.07.014

Cited by 14 publications

(2 citation statements)

References 32 publications

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“…The differences in the mean value of the PQ between both groups of the present study were statistically significant (p<0.01). This finding of the present study agrees with the studies of Hirano, Koike, and Von Leden 10 , Iwata and Von Leden, 11 and Aghajanzadeh et al 21 The high PQ values might be interpreted as the tumors of the vocal folds causing incomplete glottic closure 22 and interfering with vocal fold vibrations. Poor vocal fold approximation then causes airflow leakage during phonation, increasing breathiness, and shortening of MPT.…”

Section: Discussionsupporting

confidence: 93%

A comparison of the phonation quotient between patients with voice disorders caused by benign vocal fold lesions and normal adults 20-80 years of age

Nilsuwankhosit,

Jeeraumporn,

Dechongkit

et al. 2024

JAMS

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Background: A voice evaluation is an important first step in analyzing voice symptoms and determining appropriate treatment plans. The phonation quotient is a valid aerodynamic parameter in voice evaluations which is an indirect source of information for evaluating the valve function of the vocal folds of patients with voice disorders, especially patients with voice disorders caused by tumors of the vocal folds which is the most common cause in the patients with voice disorders. Objective: The present study aims to determine and compare the phonation quotient between patients with voice disorders caused by benign vocal fold lesions and normal adults between 20-80 years of age. Materials and methods: The participants comprised 40 adults with voice disorders caused by benign vocal fold lesions and 40 with normal voices. All participants’ voices were evaluated in the Speech Clinic at Ramathibodi Hospital, Bangkok. The phonation quotient (PQ) was calculated by the ratio of vital capacity (VC) to the maximum phonation time (MPT). VC and MPT were measured using a phonatory aerodynamic system (PAS). Results: The results of the present study indicated that the mean value of the PQ of adults with normal voices was 122.60 cc/sec (SD=16.36). The mean value of the PQ of adults with voice disorders caused by benign vocal fold lesions was 292.08 cc/ sec (SD=97.14). The mean value of the PQ in the group with voice disorders caused by benign vocal fold lesions was significantly more significant than the mean value of the PQ in the group with normal voice. Conclusion: The significant difference between the phonation quotient of adults with voice disorders caused by benign vocal fold lesions and adults with normal voice was that the PQ might be an indicator for indirect evaluation of the airflow leakage related to the efficiency of vocal fold movement during phonation. The PQ can be the optional voice measurement for monitoring and analyzing the outcomes of voice therapy.

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Section: Discussionsupporting

confidence: 93%

A comparison of the phonation quotient between patients with voice disorders caused by benign vocal fold lesions and normal adults 20-80 years of age

Nilsuwankhosit,

Jeeraumporn,

Dechongkit

et al. 2024

JAMS

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“…However, the values obtained fall short of what are expected when traditionally oriented as in studies found in the literature 3,10,19,20 . Thus, we questioned if other studies conducted with traditional orientation for extracting the MPT 3,4,[18][19][20][21][22][23][24][25][26] would have values different from those obtained here in case they had been performed under the same conditions but requesting the airflow control during the emissions.…”

Section: Discussionmentioning

confidence: 74%

Influence of the speech-language pathologist’s orientation on maximum phonation times

et al. 2018

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Purpose: to compare the results of maximum phonation times (MPTs) under two different forms of speech-language pathology orientation to extract these measures. Methods: 60 women between 17 and 23 years divided equally into two groups participated: Study Group (SG) - that performed the task under the two forms of orientation (traditional orientation and with control request of the air outlet); and the Control Group (CG) - which carried out the task in a single form of orientation (traditional one). The procedures performed comprised the extraction of MPT in the vowels /a/, /i/ and /u/, the fricatives /s/ and /z/ and numbers counting. The data were tabulated and statistically analyzed (p<0.05). Results: by comparing the two groups at the first instant of the MPT emissions, no statistically significant differences were found. However, when the second instant was compared, there were differences in most emissions, which indicates that the air control request promotes the increase of MPTs. Conclusion: the way the speech-language pathologist guides the performance of the maximum phonation times, during the evaluation of these measures, requesting the individual tomaximally control air exit, modifies the result of the extraction of the temporal measures of the voice, which must be considered in the daily vocal clinical practice.

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Changes After Voice Therapy in Acoustic Voice Analysis of Chinese Patients With Voice Disorders

et al. 2018

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The Relationship Between the Aerodynamic Parameters of Voice and Perceptual Evaluation in the Iranian Population With or Without Voice Disorders

Cited by 14 publications

References 32 publications

A comparison of the phonation quotient between patients with voice disorders caused by benign vocal fold lesions and normal adults 20-80 years of age

A comparison of the phonation quotient between patients with voice disorders caused by benign vocal fold lesions and normal adults 20-80 years of age

Influence of the speech-language pathologist’s orientation on maximum phonation times

Changes After Voice Therapy in Acoustic Voice Analysis of Chinese Patients With Voice Disorders

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