Shinya Hiroshiba - Academia.edu (original) (raw)

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Papers by Shinya Hiroshiba

Jibi inkōka rinshō, 1995

The Japan Journal of Logopedics and Phoniatrics, 2021

Nippon Jibiinkoka Gakkai Kaiho, 2017

Laryngoscope, Apr 18, 2023

ObjectiveTo determine the durability of current titanium implants (TI) used in voice improvement ... more ObjectiveTo determine the durability of current titanium implants (TI) used in voice improvement surgery for adductor spasmodic dysphonia (ADSD), which is type II thyroplasty (T2T), and identify the effects of their fractures on vocal functions.MethodsA total of 36 ADSD patients who underwent T2T had the following exams: The CT scans of the larynx were performed 1 year after the surgery to assess the fractures of TI. The improvement in the mean voice handicap index 10 (VHI‐10) scores and the success rate between nonfractured (NFR) and fractured (FR) groups were compared.ResultsIt was indicated that TI was broken in 21 cases (58.3%). In one case (2.7%), a fracture on the part of the bridge that connects both sides of the plates was observed, and fractures at holes placed on the plates in the other 35 cases (55.6%). The mean VHI‐10 score improved from 27.2 ± 8.1 to 11.4 ± 7.9 in the NFR group and from 26.3 ± 4.9 to 9.7 ± 7.9 in the FR group. The success rates were 66.6% in the NFR group and 71.5% in the FR group. No statistical difference was observed in the improvement in the mean VHI‐10 scores, and the success rate between the two groups. However, two cases resulted in failure in the FR group, whereas no worsened case was observed in the NFR group.ConclusionThe current TI used in T2T has low durability and could result in the worsening of vocal symptoms after the surgery.Level of Evidence4 Laryngoscope, 133:3028–3033, 2023

Nihon Kikan Shokudoka Gakkai Kaiho, 2013

Nihon Kikan Shokudoka Gakkai Kaiho, 1998

Nihon Kikan Shokudoka Gakkai Kaiho, 1997

The Laryngoscope

Nihon Bika Gakkai Kaishi (Japanese Journal of Rhinology)

Surgeries, 2022

Allergic rhinitis (AR) is a common chronic condition that is usually treated medically. Adolescen... more Allergic rhinitis (AR) is a common chronic condition that is usually treated medically. Adolescents form a unique population in which AR-associated symptoms are greater than those in adults or children, and are closely related to sleep and mental disorders. In the current study, a retrospective analysis was performed to illustrate the surgical effects of AR symptoms on sleep and mental disorders in adolescents. In 81 adolescents with AR symptoms refractory to medical management, the severity of the AR symptoms was correlated with that of sleep or mental disorders. As a standard surgical procedure, submucosal bony resection of inferior turbinates with posterior nasal neurectomy was performed and half of the subjects underwent septoplasty due to severe deviation of the nasal septum. The degree of improvement in AR-associated symptoms by surgical treatment was correlated with that of mental disorders in adolescent patients who had sleep and mental disorders preoperatively. Considering ...

The Japan Journal of Logopedics and Phoniatrics, 2021

Scientific Reports, 2020

Spasmodic dysphonia (SD) is characterized by an involuntary laryngeal muscle spasm during vocaliz... more Spasmodic dysphonia (SD) is characterized by an involuntary laryngeal muscle spasm during vocalization. Previous studies measured brain activation during voice production and suggested that SD arises from abnormal sensorimotor integration involving the sensorimotor cortex. However, it remains unclear whether this abnormal sensorimotor activation merely reflects neural activation produced by abnormal vocalization. To identify the specific neural correlates of SD, we used a sound discrimination task without overt vocalization to compare neural activation between 11 patients with SD and healthy participants. Participants underwent functional MRI during a two-alternative judgment task for auditory stimuli, which could be modal or falsetto voice. Since vocalization in falsetto is intact in SD, we predicted that neural activation during speech perception would differ between the two groups only for modal voice and not for falsetto voice. Group-by-stimulus interaction was observed in the l...