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

Taishi Yamada; Kohei Yamaguchi; Ayane Horike; Kohei Takahashi; Sirinthip Amornsuradech; Kazuharu Nakagawa; Kanako Yoshimi; Haruka Tohara

doi:10.1002/lio2.1204

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

Taishi Yamada
, Kohei Yamaguchi
, Ayane Horike
, Kohei Takahashi
, Sirinthip Amornsuradech
, Kazuharu Nakagawa
, Kanako Yoshimi
, Haruka Tohara

Division of Gerontology and Gerodontology Tokyo Medical and Dental University Tokyo Japan
Department of Rehabilitation Japanese Red Cross Osaka Hospital Osaka Japan
Department of Dysphagia Rehabilitation
Department of Community Dentistry Mahidol University Bangkok Thailand

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

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.

Original language	English
Pages (from-to)	e1204
Journal	Laryngoscope Investigative Otolaryngology
Volume	9
Issue number	1
DOIs	https://doi.org/10.1002/lio2.1204
Publication status	Published - Feb 2024
Externally published	Yes

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SDG 3 Good Health and Well-being

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10.1002/lio2.1204

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title = "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 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.",

author = "Taishi Yamada and Kohei Yamaguchi and Ayane Horike and Kohei Takahashi and Sirinthip Amornsuradech and Kazuharu Nakagawa and Kanako Yoshimi and Haruka Tohara",

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T1 - Development and evaluation of a new intraoral voice assist device called the voice retriever

AU - Yamada, Taishi

AU - Yamaguchi, Kohei

AU - Horike, Ayane

AU - Takahashi, Kohei

AU - Amornsuradech, Sirinthip

AU - Nakagawa, Kazuharu

AU - Yoshimi, Kanako

AU - Tohara, Haruka

PY - 2024/2

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N2 - 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.

AB - 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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JO - Laryngoscope Investigative Otolaryngology

JF - Laryngoscope Investigative Otolaryngology

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ER -

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

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