著者

坂田 英治 大都 京子 志村 弘道 酒井 繁

出版者

耳鼻咽喉科臨床学会

雑誌

耳鼻咽喉科臨床 (ISSN:00326313)

巻号頁・発行日

vol.79, no.12, pp.1999-2013, 1986-12-01 (Released:2011-11-04)

参考文献数

15

被引用文献数

1

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In recent years some youngsters have been indulging in what is called thinner inhalation, posing a serious social problem.Organic solvents have also been widely used industrially as adhesives or degreasing and rinsing agents, generating a kind of occupational disease which has become a medical problem.Furthermore, some schoolchildren who refuse to go to school complaining of headache, head heaviness, blurred vision, diplopia, dizziness, or equilibrium disturbances, may actually have toluene toxicosis caused by the adhesive they use in constructing plastic models.The authors examined 35 such patients neurotologically and found some impairment in the cerebellar cortex, cerebellar nuclei, or efferent pathways. This report is presented to invite comments from other researchers.

著者

伊藤 彰紀 坂田 英治

出版者

耳鼻咽喉科臨床学会

雑誌

耳鼻咽喉科臨床 (ISSN:00326313)

巻号頁・発行日

vol.82, no.9, pp.1221-1228, 1989-09-01 (Released:2011-11-04)

参考文献数

12

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Four cases of typical “Patulous Canal” are presented. Two of the patients had von Recklinghausen's disease. Patulous canal is defined as bilateral dilatation of the internal auditory canal without an accompanying acoustic neurinoma.Bilateral perceptive deafness may rarely accompany this syndrome.Etiologies of bone changes of von Recklinghausen's disease may be summarized as:1. Changes in the bone secondary to mass effect of neurofibromas.2. Intrinsic factors in the initial stage of ontogenesis.Among the latter, abnormalities of mesodermal tissues are found frequently.Ontogenitically the skull, especially the temporal bone including the internal auditory canal, are derived from the peri-otic capsule of the cartilaginous neurocranium which is of mesenchymal origin.The inner ear is derived from the otic vesicle which separates from the epidermal ectoderm.The presence of bone changes such as dilatation of the internal auditory canal in von Recklinghausen's disease and in other illnesses may suggest that bony changes are accompanied by mesenchymal abnormalities ontogenetically.The rarity of the complication of deafness may be explained by the low incidence of coincidental involvement of both mesenchymal and ectodermal tissues in congenital and intrinsic abnormalities.Attention has been focused on the occurrence of similar bony changes, such as dilatation of the internal auditory canal in von Recklinghausen's disease. The possible mechanisms causing these changes are discussed from the embryological viewpoint.

著者

馬塲 完仁 坂田 英治 飯田 祐起子 半田 由紀 井上 鐵三

出版者

Japan Society for Equilibrium Research

雑誌

Equilibrium Research (ISSN:03855716)

巻号頁・発行日

vol.47, no.4, pp.396-402, 1988 (Released:2009-10-20)

参考文献数

26

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Eye movements induced by the I.V. injection of ketamine hydrochloride (Group 1; n=8) and diazepam (Group 2; n=7) were axamined electro-nystagmographically in 15 healthy adults.Complete gaze nystagmus and horizontal rebound nystagmus were observed in all 8 subjects of Group 1, and rebound nystagmus in all 4 directions in 2, but none had positional nystagmus.Primary position downbeat nystagmus was observed in 5 subjects of Group 2, and horizontal gaze nystagmus in all 7, but none had rebound nystagmus, vertical gaze nystagmus or positional nystagmus.

著者

坂田 英治

出版者

Japan Society for Equilibrium Research

雑誌

Equilibrium Research (ISSN:03855716)

巻号頁・発行日

vol.51, no.2, pp.219-225, 1992 (Released:2009-12-07)

参考文献数

18

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It is generally accepted that positional vertigo might result both from lesions in the central nervous system and from lesions in the peripheral vestibular organ. In 1921, Bardny described a characteristic paroxysmal vertigo and nystagmus occurring in a certain critical position, and he suggested that the pathogenesis of this condition was related to otolith disease. In 1952, Dix and Hallpike described positional vertigo of the benign paroxysmal type (BPPN) due to a disorder of the otolith. This nyatagmus is very characteristic and nowadays is widely accepted among clinicians as a nystagmus due to otolith lesions. Furthermore, this characteristic nystagmus has become one of the most reliable signs for diagnosing vertigo due to disorder of peripheral vestibular organs. Although there have been numbers published papers describing positional vertigo due to lesions within the central nervous system (Bruns, 1902 ; Alpers and Yaskin, 1944 ; Allen and Fernandez, 1960 ; Fernandez and Alzate, 1960 ; Sakata u. a., 1979 ; Sakata, Ohtsu and Takahashi, 1984), most of these cases are not of the benign paroxysmal type. Recently, we have treated several patients with typical nystagmus of the benign paroxysmal ty-pe due to lesions in the cerebellar vermis. We discussed the differential diagnosis of BPPN, Pseudo-BPPN and MPPN.

著者

坂田 英治 梅田 悦生 大都 京子 金沢 致吉 村岡 潔

出版者

Japanese Society of Otorhinolaryngology-Head and neck surgery

雑誌

日本耳鼻咽喉科学会会報 (ISSN:00306622)

巻号頁・発行日

vol.81, no.7, pp.676-682, 1978-07-20 (Released:2008-03-19)

参考文献数

12

被引用文献数

1

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Unter den Krankheitsfällen, die über Schwindel klagen, findet man nicht selten Prodromalsymptome schwerer Krankheiten oder Initialsymptome von Hirntumor usw.Neben der Schwindelbeschwerde, dem subjektven Symptom der Patienten, lassen sich auch die objektiven Symptome Spontan-und Provokations-Nystagmus feststellen. Hierhin liegt auch der Grund für die in den letzten Jahren die Forschung in Bezug auf Spontan-Nystagmus, über deren Bedeutung man sich mehr und meter hewusst geworden ist. Tatsache ist jedoch, dass vom pathophysiologischen Aspekt aus betrachtet uber Schwindel noch viel Dunkel herrscht.Wir haben deshalb aufgrund von Untersuchungen Genaueres über die Mechanismen, die beim Zuatandekommen von Spontan-und Provokations-Schwindel wirken, zu ergründen versucht, wobei wir erstere an einem Krankengut mit Morbus Ménière, akuten Labyrinthf unktionsausfall sowie Innenohrentzündungen, letztere bei Lageschwindel vom gut-bzw. bösartigen paroxysmalen Typ sowie bei Zervikalschwindel anstellten.Die Verfasser haben insbesondere Schuknechts mechanische Erklärung über den Lageschwindel vom gutartigen paroxysmalen Typ zum Anlass seiner Forschung, da er glaubte theseArt von Schwindel durch einen funktionelleren Mechanismus erklärbar machen zu können. Desweiteren hat der Autor die Zusaznmenhänge von "Bruns-Syndrom" und "akutem Unterwurmsyndrom" beim Lageschwindel vom bösartigen paroxysmalen Typ ereörtert und dabei betont, dass Storung im Vestibulariscerebellum die Hauptursache bei der Entstehung dieser Erkrankungen sind.

著者

梅田 悦生 坂田 英治

出版者

耳鼻と臨床会

雑誌

耳鼻と臨床 (ISSN:04477227)

巻号頁・発行日

vol.23, no.6, pp.859-862, 1977 (Released:2013-05-10)

参考文献数

4

著者

馬塲 完仁 坂田 英治 大都 京子

出版者

耳鼻咽喉科臨床学会

雑誌

耳鼻咽喉科臨床 (ISSN:00326313)

巻号頁・発行日

vol.79, no.11, pp.1761-1769, 1986-11-01 (Released:2011-11-04)

参考文献数

7

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We reported fistula symptoms in three patients with congenital syphilis, one with sudden deafness and two with cochleovestibular disorders of unknown origin. Fistula symptoms in all six cases were atypical, so we emphasize that nystagmus is not the only symptom. Whether nystagmus or deviation is present depends upon the intensity of the stimulus and the degree of labyrinthine impairment. We observed pendular eye movements, when the external auditory canals were repeatedly compressed and decompressed with the patients' own fingers. Because of the various patterns on electronystagmography, it was suspected that the histopathology in these six patients was different.

著者

馬場 完仁 坂田 英治 大都 京子

出版者

耳鼻咽喉科臨床学会

雑誌

耳鼻咽喉科臨床 (ISSN:00326313)

巻号頁・発行日

vol.79, no.10, pp.1573-1580, 1986-10-01 (Released:2011-11-04)

参考文献数

29

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We have recently observed fistula symptoms in patients with chronic otitis media, congenital syphilis and many other cochleovestibular disorders of unknown origin.The fistula symptoms were not only horizontal nystagmus, but also vertical nystagmus, rotatory nystagmus and sometimes simple deviation.Since almost all patients in whom fistula symptoms were noted experienced vertigo when their external auditory canals were compressed or decompressed with their own fingers, it is important to ask them about this experience. The incidence is often higher with the finger than with the Politzer bag. It is considered necessary to investigate possible adhesions of the membranous labyrinth to the footplate, which may well be part of the etiology of fistula symptoms.

著者

坂田 英治 李 汝培 栄木 恭男 和田 昌士

出版者

The Oto-Rhino-Laryngological Society of Japan, Inc.

雑誌

日本耳鼻咽喉科学会会報 (ISSN:00306622)

巻号頁・発行日

vol.75, no.7, pp.764-782, 1972

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目的<br>中枢神経系,とくに天幕下領域や間脳における各種の疾患において,眼球運動の性状を精細に分栃し,検討することが診断上有力な役割を果すことが少なくない.<br>しかし乍ら従来は,このうち眼振にたいしては臨床家の注意は高まりつつあるが,眼振以外の自発性の異常眼運動については殆んど関心が普Eわれていない.<br>われわれは過去2年間に亘り,この問題に注目し研究をつづけてきたが,その病巣局在診断的意義と病態生理の一端を明らかにし得たのでご批判を乞う.<br>症例ならびに検査方法<br>病理解剖や手術•さらに精細な神経学的検索によつて診断を下し,しかもこの現象をみとめた症例101例を対象とした.<br>眼運動の記録は,電気的な記録法によつては不可能な注視痙攣や輻輳痙撃は映画に撮影し,その他にENGを用いた.<br>時定数3秒(原波形)ならびに0.03秒(微分波形)として,水平ならびに垂直誘導をおこなつた.EMGの混入やEEGの混入をこの現象と誤認しないよう,これらの同時記録もおこなつた.<br>結果<br>非眼振性•自発性の異常眼運動を1)調整困難性眼運動(a:固視振動,b:追越または低越性振動,c:羽攣性振動),2)間代性眼運動(a:電光運動,b:視性ミオクロニー),3)緊張性上眼運動(a:注視厘攣,b:輻輳痙攣)に分類し,整理•整頓した.<br>第1群はそれぞれ,17例,12例,27例においてみとめたが,おもに小脳疾患である.<br>第2群はまた,それぞれ23例,9例でみとめたが脳幹を中心とする錐体外路系障害例である.<br>第3群はまた,それぞれ7例,6例であり,上部脳幹を中心とする錐体外路系障害例においてみとめた.<br>この現象の病態生理学についても考察を加えた.