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Contact Pressure Between the Vocal Folds in Reinke's Edema: Experimental Observations on an Excised Human Larynx

Abstract : Objective. To analyze the range of values of the contact pressure between the membranous vocal folds with Reinke’s edema and to compare it to those observed in the absence of such a lesion. Methods. Two human larynges were separately tested on the experimental bench, one of them with a bilateral loose swelling of the vocal folds. Once in a glottal prephonatory configuration, airflow was increased until achievement of self-sustained oscillations while recording aerodynamic, acoustic, electroglottographic data, and contact pressure between the folds. Results. We observed well-documented variations in acoustical parameters, as the decrease of the fundamental frequency and the increase of the phonation threshold pressure. The results of the study also point to a significant increase in the amplitude of the contact pressure in presence of the Reinke’s edema, and a lower degree of harmonicity of the produced sounds. Conclusion. This is the first report of ex vivo study of a larynx with Reinke’s edema. It highlights the increase in the contact pressure during phonation, which possibly contributes to sustain the lesion once it appeared.
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https://hal.archives-ouvertes.fr/hal-02517126
Contributeur : Fabrice Silva <>
Soumis le : mardi 24 novembre 2020 - 11:00:53
Dernière modification le : mercredi 25 novembre 2020 - 03:12:26

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Distributed under a Creative Commons Paternité - Pas d'utilisation commerciale - Pas de modification 4.0 International License

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Fabrice Silva, Thierry Legou, Pierre Champsaur, Antoine Giovanni, Aude Lagier. Contact Pressure Between the Vocal Folds in Reinke's Edema: Experimental Observations on an Excised Human Larynx. Journal of Voice, Elsevier, In press, ⟨10.1016/j.jvoice.2020.02.020⟩. ⟨hal-02517126⟩

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