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European Archives of Oto-Rhino-Laryngology

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Open Access 01-10-2018 | Laryngology

Electroglottography in the diagnosis of functional dysphonia

Authors: A. Szkiełkowska, P. Krasnodębska, B. Miaśkiewicz, H. Skarżyński

Published in: European Archives of Oto-Rhino-Laryngology | Issue 10/2018

Abstract

Introduction

Electroglottography (EGG) is the most commonly used method of indirect visual examination of vocal fold vibration.

Aim

The study was conducted with an aim of assessing EGG quasi open quotient (QOQ_EGG) in different functional dysphonias to develop a differential diagnosis. The second aim was to check the influence of articulation on QOQ_EGG values.

Material and methods

There were 20 people without voice problems, 20 patients with hypofunctional dysphonia and 20 patients with hyperfunctional dysphonia included in the study. Electroglottography was recorded during comfortable sustained phonation of [a], [e], [i], [o], [u].

Results

There were no statistically significant differences in QOQ_EGG observed during phonation of different vowels in the control group and patients with hyperfunctional dysphonia. In patients with hypofunctional dysphonia, significantly higher values of QOQ_EGG were observed during [a] and [e]. Both in the control and in studied groups vowel [i] was vocalized significantly quieter.

Conclusions

To conclude, EGG can be useful in differential diagnosis of functional dysphonia. QOQ_EGG is a parameter differentiating hypofunctional dysphonia from hyperfunctional dysphonia. Dissimilarities in articulation of different vowels in patients with various types of dysphonia influence values of QOQ_EGG. EGG study protocol in cases of functional dysphonia should include a comparison of [a], [e], [i] vowels.

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Title: Electroglottography in the diagnosis of functional dysphonia
Authors: A. Szkiełkowska
P. Krasnodębska
B. Miaśkiewicz
H. Skarżyński
Publication date: 01-10-2018
Publisher: Springer Berlin Heidelberg
Published in: European Archives of Oto-Rhino-Laryngology / Issue 10/2018
Print ISSN: 0937-4477
Electronic ISSN: 1434-4726
DOI: https://doi.org/10.1007/s00405-018-5012-6

Keynote webinar | Spotlight on sleep in brain health

Springer Medicine

Electroglottography in the diagnosis of functional dysphonia

Abstract

Introduction

Aim

Material and methods

Results

Conclusions

Keynote webinar | Spotlight on sleep in brain health

Springer Medicine

Abstract

Introduction

Aim

Material and methods

Results

Conclusions

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