Immediate effects of water resistance therapy on patients with vocal fold mass lesions

Language
en
Document Type
Article
Issue Date
2023-05-24
First published
2020-07-01
Issue Year
2020
Authors
Echternach, Matthias
Raschka, Julius
Kuranova, Liudmila
Köberlein, Marie
Richter, Bernhard
Döllinger, Michael
Kainz, Marie-Anne
Editor
Publisher
Springer Berlin Heidelberg
Abstract

Abstract

      Introduction
      Semi-occluded vocal tract exercises, such as water resistance therapy (WRT), are widely used in voice therapy. However, the potential positive effects of such a therapy on vocal fold oscillation patterns in patients indicating a need for phonomicrosurgery have not yet been explored. The presented study aims to analyze the effect of WRT in patients suffering from vocal fold mass lesions.
    
    
      Materials and methods
      Eight participants with vocal fold mass lesions were asked to sustain a phonation on the vowel /i/ at a comfortable loudness and a fundamental frequency of 250 Hz (females) or 125 Hz (males). During phonation the subjects were simultaneously recorded with transnasal high-speed videoendoscopy (HSV, 20.000 fps), electroglottography, and audio signals. These subjects then performed a WRT (phonation in a silicone tube of 30 cm length, 5 cm below the water surface) for 10 min. Repeated measurements of sustained phonation were performed 0, 10, and 30 min after exercising. From the HSV data the glottal area waveform (GAW) was segmented and GAW parameters were computed.
    
    
      Results
      During WRT there was an increase of the GAW related open quotient and closing quotient. Immediately after WRT, there was a drop of both values followed by a rise of these parameters up to 30 min after the intervention. Furthermore, there was no correlation between GAW and electroglottographical open quotients.
    
    
      Conclusions
      The effects observed after a single session of WRT on participants with vocal fold mass lesions showed a similar pattern to vocal fatigue.
Journal Title
European Archives of Oto-Rhino-Laryngology
Volume
277
Issue
7
Citation

European Archives of Oto-Rhino-Laryngology 277.7 (2020): 1995-2003. https://link.springer.com/article/10.1007/s00405-020-05887-y