Shigeru Hirano

Prof. Shigeru Hirano

orcid

Research Focus & Metrics

Academic Career Length

36Years (1991-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 July 2009 in Journal of Voice
Verified
Journal Article
Closed access
SHShigeru Hirano
Shigeru Hirano
SMSachiko Minamiguchi
Sachiko Minamiguchi
MYMasaru Yamashita
Masaru Yamashita
TOTsunehisa Ohno
Tsunehisa Ohno
SKShin-Ichi Kanemaru
Shin-Ichi Kanemaru
MKMorimasa Kitamura
Morimasa Kitamura

1 September 2015 in Journal of Voice
Verified
Journal Article
Open access
MKMami Kaneko
Mami Kaneko
SHShigeru Hirano
Shigeru Hirano
ITIchiro Tateya
Ichiro Tateya
YKYo Kishimoto
Yo Kishimoto
NHNao Hiwatashi
Nao Hiwatashi
JIJuichi Ito
Juichi Ito
Age-related voice change is characterized as weak, harsh, and breathy. These changes are caused by histologic alteration of the lamina propria of the vocal fold mucosa as well as atrophy of the thyroarytenoid muscle. Several therapeutic strategies involving laryngeal framework surgery and injection laryngoplasty have been tried, but effects have been limited. Vocal function exercises (VFE) have been used to treat age-related vocal fold atrophy although the effectiveness has been shown with limited analysis. The present study aims to determine the effectiveness of VFE for the treatment of aged atrophy using multidimensional analysis. This is a retrospective study. Sixteen patients with vocal fold atrophy aged 65-81 years underwent voice therapy using VFE. Six patients with vocal fold atrophy aged 65-85 years were involved as a historical control group. The grade, roughness, breathiness, asthenia, strain (GRBAS) scale, stroboscopic examinations, aerodynamic assessment, acoustic analysis, and Voice Handicap Index-10 (VHI-10) were performed before and after VFE. Normalized mucosal wave amplitude (NMWA), normalized glottal gap (NGG), and bowing index (BI) were measured by image analysis during stroboscopic examinations. After VFE, significant improvements were shown in GRBAS, maximum phonation time, jitter, NMWA, NGG, and VHI-10 although BI has not changed significantly. There were no significant improvements in the historical control. The data suggest that VFE produces significant improvement in subjective, objective, and patient self-evaluation and deserves further attention as a treatment for aged atrophy of the vocal fold. It was also suggested that VFE does not improve the vocal fold bowing but may improve muscular function during voicing.

1 January 2017 in Journal of Voice
Verified
Journal Article
Closed access
MKMami Kaneko
Mami Kaneko
OSOsamu Shiromoto
Osamu Shiromoto
MFMasako Fujiu-Kurachi
Masako Fujiu-Kurachi
YKYo Kishimoto
Yo Kishimoto
ITIchiro Tateya
Ichiro Tateya
SHShigeru Hirano
Shigeru Hirano

17 January 2012 in The Laryngoscope
Verified
Journal Article
Closed access
PDF file
SHShigeru Hirano
Shigeru Hirano
ITIchiro Tateya
Ichiro Tateya
YKYo Kishimoto
Yo Kishimoto
SKShin‐Ichi Kanemaru
Shin‐Ichi Kanemaru
JIJuichi Ito
Juichi Ito

27 October 2020 in The Laryngoscope
Verified
Journal Article
Closed access
PDF file
SHShigeru Hirano
Shigeru Hirano
YSYoichiro Sugiyama
Yoichiro Sugiyama
MKMami Kaneko
Mami Kaneko
SMShigeyuki Mukudai
Shigeyuki Mukudai
SFShinya Fuse
Shinya Fuse
KHKeiko Hashimoto
Keiko Hashimoto

30 October 2017 in Journal of Tissue Engineering and Regenerative Medicine
Verified
Journal Article
Closed access
PDF file
SHShigeru Hirano
Shigeru Hirano
AKAtsuhiko Kawamoto
Atsuhiko Kawamoto
ITIchiro Tateya
Ichiro Tateya
MMMasanobu Mizuta
Masanobu Mizuta
YKYo Kishimoto
Yo Kishimoto
SKShin‐Ichi Kanemaru
Shin‐Ichi Kanemaru