Impairment of Voice Quality in Paradoxical Vocal Fold Motion Dysfunction

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• 作者：Kursat Yelken ; Erdogan Gultekin ; Mehmet Guven ; Ahmet Eyibilen ; Ibrahim Aladag
• 关键词：Paradoxical vocal fold motion dysfunction ; Laryngostroboscopy ; Acoustic analysis ; Aerodynamic measurements ; GRBAS— ; Voice Handicap Index-10
• 刊名：Journal of Voice
• 出版年：2010
• 出版时间：November 2010
• 年：2010
• 卷：24
• 期：6
• 页码：724-727
• 全文大小：157 K

文摘

Summary

Objectives/Hypothesis

To compare subjective and objective voice-quality parameters between asymptomatic paradoxical vocal fold motion dysfunction (PVFMD) patients and healthy individuals.

Study Design

Prospective.

Methods

A total number of 12 patients with PVFMD and 12 healthy control subjects had voice evaluations by means of laryngostroboscopy, acoustic analysis (jitter, shimmer, and harmonics-to-noise ratio [HNR]), aerodynamic measurements (maximum phonation time [MPT], s/z ratio), and perceptual analysis (Grade, Roughness, Breathiness, Asthenicity, and Strain Scale [GRBAS] and Voice Handicap Index-10 [VHI-10] scales). Evaluations were conducted when all the patients were asymptomatic.

Results

False vocal cord adduction, anteroposterior constriction of the supraglottic larynx, decreased amplitude, and decreased mucosal wave were observed in the great majority of the PVFMD patients during laryngostroboscopy. Mean jitter and shimmer rates were significantly high in PVFMD patients and there was no significant difference in mean HNR between groups (P < 0.05). Mean MPT was significantly long in control subjects (P < 0.05) and mean s/z ratio was nearly equal between patients and control subjects. There was a statistically significant difference between groups about GRBAS and VHI-10 scales (P < 0.05).

Conclusions

Based on the subjective and objective voice parameters, voice quality is significantly impaired in asymptomatic PVFMD patients when compared with the healthy control subjects.