Immediate and Short-term Effects of Straw Phonation in Air or Water on Vocal Fold Vibration and Supraglottic Activity of Adult Patients with Voice Disorders Visualized with Strobovideolaryngoscopy : A Pilot Study

Copyright © 2021 The Voice Foundation. Published by Elsevier Inc. All rights reserved..

Purpose The first purpose of this study was to investigate and compare the short-term effects after a semi-occluded vocal tract (SOVT) therapy session consisting of straw phonation (SP) in air or water on vocal fold vibration and supraglottic activity of adult patients with voice disorders, visualized with strobovideolaryngoscopy (SVL). The second purpose of this study was to investigate and compare immediate changes in the patients' vocal fold vibration and supraglottic activity during SP in air or water, visualized with SVL. Methods Twelve adult patients with voice disorders (eight women and four men, mean age 52 years) were assigned randomly to one of two study groups: SP in air or SP in water. Immediately before and after a therapy session of 15 min, participants underwent a rigid SVL to determine the short-term effects of the SP session. At the posttherapy examination, flexible SVL while performing SP was added to determine the effects occurring during SP. The visual-perceptual ratings were performed blindly and in random order by three laryngologists, using the Voice-Vibratory Assessment with Laryngeal Imaging rating form for stroboscopy. ResultsShort-term effects after SP: After the SP-in-air session, the supraglottic mediolateral compression decreased significantly. The SP-in-water session led to significantly increased left vibrational amplitude. Immediate effects during SP: During SP in air, a significantly increased left amplitude and mucosal wave, and significantly decreased mediolateral supraglottic activity, were found. SP in water tended to decrease the vibrational amplitude during performance of the task. A trend toward higher anteroposterior supraglottic compression was observed during both SP in air and water, being more prominent in the latter. Conclusion SP in air led to less false vocal fold adduction and consequently less hyperfunction. The small increment in anteroposterior supraglottic activity during SP in air and water might be related to epilarynx narrowing, an economic phenomenon associated with SOVT exercises. The effects on vibrational amplitude were rather ambiguous. The small reduction in amplitude during SP in water is expected to diminish vocal fold impact stress and therefore creates an ideal basis for voice therapy. The increment in amplitude and mucosal wave during SP in air might indicate insufficient supraglottic pressure to obtain the favorable effects of semi-occlusion. Whether or not the rise in amplitude after the SP-in-water session is due to voice efficiency or voice fatigue remains unknown. Future larger-scale investigation in subgroups of voice patients is needed to explore these hypotheses.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:38

Enthalten in:

Journal of voice : official journal of the Voice Foundation - 38(2024), 2 vom: 07. März, Seite 392-403

Sprache:

Englisch

Beteiligte Personen:

Meerschman, Iris [VerfasserIn]
Van Lierde, Kristiane [VerfasserIn]
D'haeseleer, Evelien [VerfasserIn]
Alnouri, Ghiath [VerfasserIn]
Burdett, Jacob [VerfasserIn]
Palmer, Jesse [VerfasserIn]
Rose, Bridget [VerfasserIn]
Doucette, Philip [VerfasserIn]
Paknezhad, Hassan [VerfasserIn]
Ross, Justin [VerfasserIn]
Brennan, Matthew [VerfasserIn]
Sataloff, Robert T [VerfasserIn]

Links:

Volltext

Themen:

059QF0KO0R
Efficacy—Semi-occluded vocal tract therapy—Straw phonation— Vocal fold vibration—Supraglottic activity—Strobovideolaryngoscopy
Journal Article
Randomized Controlled Trial
Water

Anmerkungen:

Date Completed 01.04.2024

Date Revised 01.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.jvoice.2021.09.017

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM333401786