Development and evaluation of a new intraoral voice assist device called the voice retriever

Abstract Objective Patients lose their voice after laryngectomy for laryngeal cancer or aspiration prevention surgery for severe dysphagia. To assist such patients, we developed and verified the utility of a novel vocalization method using a device termed the voice retriever (VR), in which the sound...

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Main Authors: Taishi Yamada, Kohei Yamaguchi, Ayane Horike, Kohei Takahashi, Sirinthip Amornsuradech, Kazuharu Nakagawa, Kanako Yoshimi, Haruka Tohara
Format: Article
Language:English
Published: Wiley 2024-02-01
Series:Laryngoscope Investigative Otolaryngology
Subjects:
Online Access:https://doi.org/10.1002/lio2.1204
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author Taishi Yamada
Kohei Yamaguchi
Ayane Horike
Kohei Takahashi
Sirinthip Amornsuradech
Kazuharu Nakagawa
Kanako Yoshimi
Haruka Tohara
author_facet Taishi Yamada
Kohei Yamaguchi
Ayane Horike
Kohei Takahashi
Sirinthip Amornsuradech
Kazuharu Nakagawa
Kanako Yoshimi
Haruka Tohara
author_sort Taishi Yamada
collection DOAJ
description Abstract Objective Patients lose their voice after laryngectomy for laryngeal cancer or aspiration prevention surgery for severe dysphagia. To assist such patients, we developed and verified the utility of a novel vocalization method using a device termed the voice retriever (VR), in which the sound source is placed in the mouth. Methods We investigated the effectiveness of the VR in patients. The VR consists of a mouthpiece with a built‐in speaker and a dedicated application that serves as the sound source. We compared the speech intelligibility and naturalness in normal participants using VR and an electrolarynx (EL) for the first time as well as the voice‐related quality of life (V‐RQOL) in patients with dysphonia before and after using the VR. Results The VR produced significantly higher 100‐syllable test scores as well as fluency, amount of additional noise, intonation, intelligibility and overall long reading test ratings in the first‐time VR and EL users. Furthermore, the VR use significantly improved the V‐RQOL of participants with dysphonia. Conclusion Compared to EL, VR allows more effective speech improvement in participants without experience using an alternative vocalization method and improves the V‐RQOL in patients with dysphonia. Level of Evidence Step 4.
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spelling doaj.art-66beeb2c636b48c8a732d0f70f4abeb22024-02-23T12:00:37ZengWileyLaryngoscope Investigative Otolaryngology2378-80382024-02-0191n/an/a10.1002/lio2.1204Development and evaluation of a new intraoral voice assist device called the voice retrieverTaishi Yamada0Kohei Yamaguchi1Ayane Horike2Kohei Takahashi3Sirinthip Amornsuradech4Kazuharu Nakagawa5Kanako Yoshimi6Haruka Tohara7Department of Dysphagia Rehabilitation, Division of Gerontology and Gerodontology Tokyo Medical and Dental University Tokyo JapanDepartment of Dysphagia Rehabilitation, Division of Gerontology and Gerodontology Tokyo Medical and Dental University Tokyo JapanDepartment of Dysphagia Rehabilitation, Division of Gerontology and Gerodontology Tokyo Medical and Dental University Tokyo JapanDepartment of Rehabilitation Japanese Red Cross Osaka Hospital Osaka JapanDepartment of Dysphagia Rehabilitation, Division of Gerontology and Gerodontology Tokyo Medical and Dental University Tokyo JapanDepartment of Dysphagia Rehabilitation, Division of Gerontology and Gerodontology Tokyo Medical and Dental University Tokyo JapanDepartment of Dysphagia Rehabilitation, Division of Gerontology and Gerodontology Tokyo Medical and Dental University Tokyo JapanDepartment of Dysphagia Rehabilitation, Division of Gerontology and Gerodontology Tokyo Medical and Dental University Tokyo JapanAbstract Objective Patients lose their voice after laryngectomy for laryngeal cancer or aspiration prevention surgery for severe dysphagia. To assist such patients, we developed and verified the utility of a novel vocalization method using a device termed the voice retriever (VR), in which the sound source is placed in the mouth. Methods We investigated the effectiveness of the VR in patients. The VR consists of a mouthpiece with a built‐in speaker and a dedicated application that serves as the sound source. We compared the speech intelligibility and naturalness in normal participants using VR and an electrolarynx (EL) for the first time as well as the voice‐related quality of life (V‐RQOL) in patients with dysphonia before and after using the VR. Results The VR produced significantly higher 100‐syllable test scores as well as fluency, amount of additional noise, intonation, intelligibility and overall long reading test ratings in the first‐time VR and EL users. Furthermore, the VR use significantly improved the V‐RQOL of participants with dysphonia. Conclusion Compared to EL, VR allows more effective speech improvement in participants without experience using an alternative vocalization method and improves the V‐RQOL in patients with dysphonia. Level of Evidence Step 4.https://doi.org/10.1002/lio2.1204dysphoniaelectrolarynxspeech intelligibilityvocalization
spellingShingle Taishi Yamada
Kohei Yamaguchi
Ayane Horike
Kohei Takahashi
Sirinthip Amornsuradech
Kazuharu Nakagawa
Kanako Yoshimi
Haruka Tohara
Development and evaluation of a new intraoral voice assist device called the voice retriever
Laryngoscope Investigative Otolaryngology
dysphonia
electrolarynx
speech intelligibility
vocalization
title Development and evaluation of a new intraoral voice assist device called the voice retriever
title_full Development and evaluation of a new intraoral voice assist device called the voice retriever
title_fullStr Development and evaluation of a new intraoral voice assist device called the voice retriever
title_full_unstemmed Development and evaluation of a new intraoral voice assist device called the voice retriever
title_short Development and evaluation of a new intraoral voice assist device called the voice retriever
title_sort development and evaluation of a new intraoral voice assist device called the voice retriever
topic dysphonia
electrolarynx
speech intelligibility
vocalization
url https://doi.org/10.1002/lio2.1204
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