A5006486118- Hearing, Cochlea, Tinnitus, Genetics
- Meningioma and schwannoma management
- Hearing Loss and Rehabilitation
- Vestibular and auditory disorders
- Neurofibromatosis and Schwannoma Cases
- Ear and Head Tumors
- Facial Nerve Paralysis Treatment and Research
- Trigeminal Neuralgia and Treatments
- Trauma Management and Diagnosis
- Ear Surgery and Otitis Media
- Noise Effects and Management
- Cerebral Venous Sinus Thrombosis
- IgG4-Related and Inflammatory Diseases
- Disaster Response and Management
- Bat Biology and Ecology Studies
- Hematological disorders and diagnostics
- Dysphagia Assessment and Management
- Hearing Impairment and Communication
- Salivary Gland Tumors Diagnosis and Treatment
- Nerve Injury and Rehabilitation
- Acupuncture Treatment Research Studies
- Complementary and Alternative Medicine Studies
- Vasculitis and related conditions
- Traumatic Ocular and Foreign Body Injuries
- Disaster Management and Resilience
Keio University
2012-2025
Keio University Hospital
2023-2025
keiyu Hospital
2022-2023
Saiseikai Utsunomiya hospital
2019-2022
Kawasaki Hospital
2018
Abstract The extent of hearing loss requiring aid (HA) to prevent cognitive decline is unclear; we assessed this post-midlife along with the relationship between thresholds and function in those who had never used HA (non-users) or HAs for >3 years (long-term users). This study comprised 117 individuals ≥55 an average threshold ≥25 dB HL their better ear 55 non-users 62 long-term users. Mini-Mental State Examination, Symbol Digit Modalities Test (SDMT), pure-tone sound-field audiometry...
To assess pretreatment factors including preoperative vestibular function tests evaluated using cVEMP and caloric tests, which correlate with the development of prolonged dizziness after schwannoma resection. Retrospective cohort study. Academic tertiary referral centers. Patients who underwent surgery completed questionnaires. Diagnostic. Participants were divided into nonprolonged groups according to their postoperative DHI scores. The rates abnormal results (caloric test, cVEMP), other...
Facial nerve paralysis caused by a vestibular schwannoma is rare but critical symptom; however, few reports have focused on preoperative facial palsy from the viewpoint of treatment. In addition, its mechanism not fully understood. We report case that improved after surgical resection small with hearing preservation. A within internal auditory canal acute deafness and in 51-year-old woman. Conservative treatment was initially administered, severe loss persisted for 3 months onset....
The cause of idiopathic sudden sensorineural hearing loss (idiopathic SSNHL)-diagnosed after excluding other causes loss, such as SSNHL associated with vestibular schwannoma (VS)-is unknown. presumed pathogenesis includes circulatory disorders (e.g., cochlear infarction). We tested the hypothesis that patients who are at high stroke risk will have a lower rate VS compared to those low risk. rationale is primary in might be disturbance. conducted retrospective study six hospitals. Our...
Surgery for vestibular schwannoma includes various techniques such as the middle cranial fossa, suboccipital, translabyrinthine, and retrolabyrinthine approaches. The approach does not impair labyrinth allows postoperative hearing preservation. Previously, we reported an endoscope-assisted under reinforced continuous intraoperative monitoring preservation of facial nerve function. However, rate was relatively low in patients with long-wave V latency auditory brainstem response or poor...
A vestibular schwannoma is a benign tumor; however, the itself and interventions can cause sensorineural hearing loss. Most schwannomas are unilateral tumors that affect only on one side. Attention has focused improving quality of life for patients with loss therapeutic to address this issue have been emphasized. Herein, we encountered patient who was candidate preservation surgery based preoperative findings had nonserviceable after surgery, according Gardner-Robertson classification....
Highly accurate real-time cochlear nerve monitoring to preserve function is essential for simultaneous implantation and ipsilateral vestibular schwannoma resection. In the present study, we developed a novel system that combines dorsal nucleus action potential with intracochlear stimulating electrodes (Auditory Nerve Test System, ANTS). We used this case resection via translabyrinthine approach. The in study detected highly reliable evoked potentials from every two seconds continuously...
Cartilage conduction hearing aids (CC-HA), bone anchored (Baha), and ADHEAR are good choices to improve in patients who cannot use air because of aural atresia or continuous otorrhea. As there many overlaps the characteristics these devices, we conducted a comparative trial CC-HA, Baha, ADHEAR. We provided with opportunity select their devices. The data 6 underwent trials our department between October 2021 August 2022 were retrospectively examined. gains Baha CC-HA outweighed those...
Abstract Atherosclerosis is reported to be a risk factor for the severity of idiopathic sudden sensorineural hearing loss (ISSNHL). We evaluated hypothesis that atherosclerosis affects thresholds both affected and healthy sides ISSNHL patients. conducted multivariate analyses on retrospectively collected data patients with (N = 762) evaluate relationship between known factors linked whether these are prognostic recovery. Older ages, vertigo or dizziness, diabetes mellitus, congestive heart...
Febrile neutropenia (FN) is the most serious hematologic toxicity of systemic chemotherapy. However, accurate prediction FN development has been difficult because risk varies largely depending on chemotherapy regimen and various individual factors.We retrospectively analyzed diverse clinical factors including pretreatment hematological parameters to clarify reliable predictors during with a docetaxel, cisplatin, fluorouracil (TPF) in patients head neck squamous cell carcinoma.Among 50...
Between August 15th and 19th, 2011, eight 5th-year medical students from the Keio University School of Medicine had opportunity to visit Peking hold a discussion session titled “What is most effective way educate people for survival in an acute disaster situation (before mental health care stage)?” During session, we discussed following six points: basic information regarding Sichuan Earthquake East Japan Earthquake, differences preparedness earthquakes, government actions, acceptance rescue...
Macrophages are essential immune cells in the cochlea that contribute to inflammation, tissue repair, and homeostasis. They also play an important role local cochlear immunity. The developmental immigration maturation of macrophages have been investigated considered for normal hearing acquisition. Most our current knowledge regarding development is based on rodent models because ethical challenges using human fetal samples research. However, inter-species differences between rodents humans...
Type I spiral ganglion neurons are peripheral essential for hearing perception. While they can be subdivided in mice based on characteristic gene expression patterns, detailed examinations of these subtypes primates and humans lacking. In this study, we investigated the developmental common marmoset (Callithrix jacchus). We confirmed that divided patterns several marker genes. However, some combinations genes differ from those rodents, suggesting marmoset's suitability advancing our...
<title>Abstract</title> Hearing loss is a potential risk factor for cognitive decline, and the use of hearing aids thought to have positive effect preventing decline. However, extent requiring aid prevent decline unclear. This study examined thresholds associated with in individuals impairment analyzed relationship between function those who had never used or > 3 years. cross-sectional, prospective, cohort was undertaken at tertiary care center September 2022 2023. The comprised 117 aged...
Abstract Background Inflammatory pseudotumors (IPTs) are rare, idiopathic, and inflammatory lesions that histopathologically benign. Here, we present three cases of labyrinthine destruction caused by an IPT. Methods The first patient was a 74‐year‐old male with mass lesion extending from the inner ear to external canal. second 62‐year‐old female foliated polycystic in petrous bone on dorsal side left internal auditory third 68‐year‐old middle ear, destroying semicircular canal cochlea....
要旨: 音楽幻聴は, 外部からの音刺激がないのに歌や旋律が自然に聞こえる現象であり, 耳鳴患者の中にも稀に存在する。2011年1月から2018年10月までに当科を受診した耳鳴患者のうち, 音楽幻聴を訴えた23例の臨床像を検討した。このうち11例に対し耳鳴について詳細に説明した上で補聴器による音響療法を行い, 治療効果を検討した。音楽幻聴症例は, 高齢者・女性に多く1例を除く全例で感音難聴を認めた。全例で病識が保たれており, 精神神経科疾患の合併を認めなかった。治療後に Tinnitus Handicap Inventory の合計値, 耳鳴の自覚的大きさ・苦痛の Visual Analogue Scale は有意に改善した。本検討から, 精神神経科疾患の合併がなく難聴が主病因の音楽幻聴に対し耳鳴の説明と補聴器による音響療法が有効な治療である可能性が示唆され, 耳鼻咽喉科医が中心となり診療に携わることが望ましいと考えられた。
唾液誤嚥により肺炎を繰り返すなどの高度嚥下障害に対する外科的治療として,気道と食道を分離する誤嚥防止手術が行われている。声門閉鎖術(鹿野式)をはじめ多くの誤嚥防止手術はカニューレフリーを目的として狭窄しにくい永久気管孔を造設するように工夫している。一方,術後人工呼吸器管理が必要な症例ではカフ付き気管カニューレの装着が必要となる。気管カニューレは気管切開孔への装着を目的に設計されているために永久気管孔と適合しないことが多い。誤嚥防止手術後のカニューレ不適合は気管切開術と比較して気管カニューレの脱落や気管腕頭動脈瘻などの重篤な合併症のリスクが上昇する。今回われわれは術後気管カニューレの装着を必要とする7例の患者に対して輪状軟骨を温存して声門閉鎖を行い,一般的な気管切開孔の形状を残す「輪状軟骨温存型声門閉鎖術」を行った。本術式における永久気管孔の曲率半径は声門閉鎖術(鹿野式)と比較したところ有意に小さく,気管カニューレの曲率半径に近似していた。われわれが本術式を施行した7例中5例に術後気管カニューレが装着され,術後経過は良好で重篤な合併症を認めていない。輪状軟骨温存型声門閉鎖術は気管カ...
要旨: 慢性耳鳴に対する治療として, 教育的カウンセリングや音響療法, 認知行動療法などが行われており, 特に難聴を伴う耳鳴に対しては補聴器による音響療法も普及してきている。今回, 難聴を伴う慢性耳鳴に対して宇都宮方式聴覚リハビリテーションで補聴器調整を行った症例95例を対象とし, 耳鳴改善効果について評価した。治療前の平均 THI 値は55±24点であったが, 治療開始3カ月後の平均 値は22±23点, 治療開始1年間の 最低値の平均は14±18点であり, 治療前と比較し有意に低下した。THI 値低下率は75%, 全症例の92%で 値が軽症化または20点以上の低下を認め, 難聴を伴う慢性耳鳴に対する補聴器による音響療法は有効な治療法であると考えられた。また両側耳鳴・片側耳鳴群では 値低下率に有意差は認めなかった。聴力左右差が20dBHL 以上の症例では, 20dBHL 未満の症例と比較して 値低下率が高く, 改善した症例の割合が多い傾向があった。