Masumi Kobayashi
YOU?
Author Swipe
View article: Establishing standardized conditions for clinically available sound-localization tests: A multicenter approach
Establishing standardized conditions for clinically available sound-localization tests: A multicenter approach Open
Sound localization is essential for auditory spatial awareness. The process relies on interaural differences in timing and level, and spectral cues. This study aimed to standardize sound-localization testing conditions across facilities in…
View article: Cognitive function and speech outcomes after cochlear implantation in older adults
Cognitive function and speech outcomes after cochlear implantation in older adults Open
Background The impact of cochlear implantation on cognitive function in older adults and the relationship between preoperative cognitive ability and postoperative speech perception remain poorly understood. In this study, we aimed to evalu…
View article: Microsurgical Robotic System for Myringoplasty: Feasibility Study
Microsurgical Robotic System for Myringoplasty: Feasibility Study Open
Objective Otological surgery requires exceptional precision and advanced surgical skills, particularly for procedures involving the tympanic membrane and middle ear structures. Microsurgical robotic systems have shown promise in enhancing …
View article: Perilymphatic enhancement and endolymphatic hydrops: MRI findings and clinical associations
Perilymphatic enhancement and endolymphatic hydrops: MRI findings and clinical associations Open
Objective In this study, we aimed to summarize magnetic resonance imaging (MRI) findings of perilymphatic enhancement (PE) and endolymphatic hydrops (EH) of the inner ear, which are associated with vestibular and cochlear symptoms. Methods…
View article: Factors influencing auditory brainstem response changes in infants
Factors influencing auditory brainstem response changes in infants Open
Half of the infants tested the second time showed improvement in ABR threshold. Children with congenital syndromes (such as Down syndrome) or otitis media with effusion should undergo a second ABR examination or other auditory assessments …
View article: A Review of Airway Management in 73 Cases of Acute Epiglottitis
A Review of Airway Management in 73 Cases of Acute Epiglottitis Open
急性喉頭蓋炎は急激な気道閉塞を引き起こし致命的になり得る疾患であり, 迅速な診断と治療を要する. 気道確保の方法は, 過去の報告では大半の症例で気管切開がされていたが, 近年では内視鏡下挿管が増加しており喉頭浮腫が比較的高度な症例に対しても気道確保ができる場合がある. 今回, われわれは当院を受診した急性喉頭蓋炎73例について検討した. Katori らの重症度分類 (Katori 分類) ではⅠ度が36例, Ⅱ度が23例, Ⅲ度が14例であり, 田中らの重症度分類 (田中…
View article: Improvement of vertigo symptoms and acoustic power absorbance in cases with endolymphatic hydrops
Improvement of vertigo symptoms and acoustic power absorbance in cases with endolymphatic hydrops Open
Objective The pathophysiology and symptoms underlying Meniere's disease (MD) manifest as endolymphatic hydrops (EH), potentially impacting acoustic power absorbance in vestibular EH. The longitudinal effects of middle ear pressure therapy …
View article: A Case of Pharyngolaryngeal Syphilis with Bilateral Cervical Lymphadenopathy Requiring Tracheostomy
A Case of Pharyngolaryngeal Syphilis with Bilateral Cervical Lymphadenopathy Requiring Tracheostomy Open
Syphilis is a systemic bacterial infection caused by Treponema pallidum that is exclusively transmitted through direct contact with contagious mucocutaneous lesions, with the exception of vertical transmission. The laryngeal mucosa serves …
View article: A Case of Metastatic Lung Adenocarcinoma to the Temporal Bone Presenting with Temporal Pain
A Case of Metastatic Lung Adenocarcinoma to the Temporal Bone Presenting with Temporal Pain Open
A 70-year-old female patient complaining of persistent pain in the left temporal region was referred to our university hospital by her physician. Audiometry and examination of the tympanic membrane yielded no unremarkable findings. Further…
View article: Comparative Analysis of Cartilage Conduction Hearing Aid Users and Non-Users: An Investigative Study
Comparative Analysis of Cartilage Conduction Hearing Aid Users and Non-Users: An Investigative Study Open
Clinical findings on cartilage conduction hearing aids (CCHAs) have gradually become clear; however, few reports include a large number of cases. This study included 91 ears from 69 patients who underwent CCHA fitting in our hospital. Thei…
View article: Significance of an augmented response on cervical vestibular evoked myogenic potential testing in Meniere's disease.
Significance of an augmented response on cervical vestibular evoked myogenic potential testing in Meniere's disease. Open
The potential mechanism of augmented response on cervical vestibular evoked myogenic potential (cVEMP) testing and its decrease following treatment in a patient with Meniere's disease (MD) are discussed. Changes of static posturography and…
View article: Pathophysiological analysis of idiopathic sudden sensorineural hearing loss by magnetic resonance imaging: A mini scoping review
Pathophysiological analysis of idiopathic sudden sensorineural hearing loss by magnetic resonance imaging: A mini scoping review Open
Objective To summarize the pathophysiological analysis of idiopathic sudden sensorineural hearing loss (ISSNHL) by magnetic resonance imaging (MRI), focusing on the findings of high signal or endolymphatic hydrops (EH) in the inner ear. Me…
View article: A Case of Bilateral Cochlear Implantation for Congenital Visual-Auditory Dual Disability Associated with Wolfram Syndrome and Osteogenesis Imperfecta
A Case of Bilateral Cochlear Implantation for Congenital Visual-Auditory Dual Disability Associated with Wolfram Syndrome and Osteogenesis Imperfecta Open
We report a case of bilateral cochlear implant surgery performed for profound sensorineural hearing loss in a 2-year-old girl with Wolfram syndrome and osteogenesis imperfecta type I. Wolfram syndrome is a rare autosomal-recessive genetic …
View article: Impact of endolymphatic hydrops on <scp>DPOAE</scp> in subjects with normal to mild hearing loss
Impact of endolymphatic hydrops on <span>DPOAE</span> in subjects with normal to mild hearing loss Open
Objective The increased endolymph volume affects a shift in the organ of Corti and basilar membrane in ears with endolymphatic hydrops (EH), which might affect distortion‐product otoacoustic emissions (DPOAE) by altering the operating poin…
View article: 17O-labeled water distribution in the human inner ear: Insights into lymphatic dynamics and vestibular function
17O-labeled water distribution in the human inner ear: Insights into lymphatic dynamics and vestibular function Open
We evaluated the inner ear distribution of 17 O-labeled saline administered to the human tympanic cavity. Magnetic resonance imaging was performed after intratympanic administration in five healthy volunteers and one patient with cochlear …
View article: Primary laryngeal cryptococcosis mimicking laryngeal malignancy: a case report.
Primary laryngeal cryptococcosis mimicking laryngeal malignancy: a case report. Open
Primary laryngeal cryptococcosis is an extremely rare infection and presents with non-specific symptoms such as hoarseness or sore throat, resulting in delayed diagnosis. Here, we report the patient of a 56-year-old female patient with pri…
View article: Pathological significance and classification of endolymphatic hydrops in otological disorders.
Pathological significance and classification of endolymphatic hydrops in otological disorders. Open
We summarize the presence of endolymphatic hydrops (EH) in otological disorders evaluated with magnetic resonance imaging (MRI) of temporal bones, and propose a classification of EH based on its pathological significance. A search of the l…
View article: Effect of Binaural Hearing Aids on the Improvement of the Maximum Discrimination Score
Effect of Binaural Hearing Aids on the Improvement of the Maximum Discrimination Score Open
両耳聴の意義に対する認識が高まり, 補聴器も人工内耳も可能であれば両耳聴を目指す方向に向かっている. 今回, 装用前の語音弁別能は不良であったが, 両耳装用後に実用レベルに達した症例について検討した. 耳鳴を主訴とした両側水平性感音難聴の2症例で, 語音弁別能は初診時左右それぞれ30～55%であったが, 1年後には両耳装用下の音場検査にて各々80,95%という結果が得られた. これは周波数ごとに圧縮を変更しながら十分なファンクショナルゲインを確保したことと, 優れた両耳聴効…