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Featured researches published by Nobuya Ushio.


Practica oto-rhino-laryngologica | 1981

Role of the Proprioceptors of the Extrinsic Eye Muscles in the Maintenance of Body Equilibrium in Response to Optokinetic Stimulation

Nobuya Ushio; Hideyuki Fukushima; Tomoyuki Haji; Tokuya Takatani; Hiroyuki Kitamura; Hideo Higashitsuji; Masahiko Hayashi; Susumu Tamaki; Manabi Hinoki; Kazuhito Nakanishi; Seiji Kishimoto; J. B. Baron

視運動刺激下の身体平衡維持に外眼筋深部受容器の果す役割を明かにするたために, 次の検索を行った. すなわち, 外眼筋麻痺 (核上性) を伴う頭頸部外傷例を対象とし, 麻痺眼へ prism 装着を行い, その眼筋の低下した深部受容器活動性を促進, 鼓舞するよう操作した場合, 視運動刺激に対する眼反射と脊髄反射がどのように変動するかを観察し, かつ両者の相関を検討した. この際, 眼球運動と身体の平衡状態 (立直り反射) をそれぞれ眼振電計と重心動揺計で測定記録した. 得られた成績は次の通りである.(1) prism 装着によって視運動眼振はかなりの率で変動を示した. すなわち, この眼振の発現が促進されたもの53%, 眼振発現に有意の変化のなかったもの21%, 却って眼振の抑制がみられたもの26%である.(2) 同時記録した重心動揺曲線と視運動眼振発現状況の間には次のような相関がみられた. すなわち, prism 装着で眼振の出現が活発となるものは重心動揺曲線が安定化し, 立直り機能改善を示唆する所見が得られる傾向が強かった. これに対し, prism の装着で眼振の発現が却って抑制されたものでは, 重心動揺の度が増大し, 立直り機能の低下がうかがわれる傾向が示された.(3) 視運動刺激で誘発されるめまいとこの刺激でおこる眼反射, 脊髄反射の変化の間には一定の相関がある. すなわち, 眼振の抑制と重心動揺の増大がおこるとめまいが出現又は増強する傾向があり, 両者間に平行関係のあることが判った.これまでの報告や自験を参照し, 以上の成績より次の結論をのべた.1. 視運動刺激に対して眼球及び身体の平衡機能が円滑に発揮されるためには, その前提として外眼筋深部受容器と網膜の機能的協応が成立している必要がある. 従って, 外眼筋麻痺例にしばしば出現する視運動性めまいの背景には, 上記の2つの器官の協応の破綻があり, それに由来して眼筋, 躯幹, 四肢筋の機能失調がおこり, それを土台にめまいが生ずる.2. 眼球の非動化を行わず, 外眼筋深部受容器活動性を prism で変化させて視運動眼振や視運動脊髄反射を観察する方法は, 従来の研究方法にくらべてより生理的であり, 新しい研究分野の開発に役立ちうる.


Practica oto-rhino-laryngologica | 1981

Ectopic Thymic Tissue in the Neck

Masahiko Hayashi; Hiroyuki Kitamura; Hideo Higashitsuji; Susumu Tamaki; Noriko Uehara; Nobuya Ushio; Seiji Kishimoto

In 1971 an ectopic solid thymus gland of the neck was first reported in Japan. Since then only a few individual case reports have been published. This article presents one such patient who was recently found and reviews the literature. The embryology of ectopic solid thymus glands and thymic cysts in the neck is also discussed.


Practica oto-rhino-laryngologica | 1981

Clinical Evaluation of Ultrasonic Examination on Thyroid Tumors

Seiji Kishimoto; Hiroyuki Kitamura; Hideo Higashitsuji; Nobuya Ushio; Masahiko Hayashi; Motoyo Takamaru

For the diagnosis of thyroid tumors, palpation, X-ray, RI-scintiphoto and biopsy have been employed. They are, however, insufficient for the determination of the characteristics of tumors, but also cause several side effects, such as spreading tumor cells and haemorrhage.In order to obtain more accurate information about thyroid tumors without any serious side effects, we employed B-mode ultrasonography to evaluate 223 patients with thyroid tumors. In 84 of the 223 patients tested, the correlation was examined between the results of ultrasonography and the histological findings.The results obtained were as follows:(1) On the basis of the presence or absence of echo within tumor pictures, the tumors were classified into the following 3 types, i. e., solid, cystic and mixed. The solid type tended to be malignant. In contrast, in the case of the cystic type, tumors tended to be benign with a few exceptions.(2) On the basis of echo structures within tumor pictures, the tumors were divided into the following two types, i. e., coarse and non-uniform or fine uniform. The latter echo has been considered to be indicative of benignity. However, the present examination revealed that in 45% of the tumors with the latter echo malignancy was proved histologically.(3) On the basis of marginal echo structure between tumors and the surrounding tissues, the tumors were classified into the following two types, i. e., smooth and irregular. In the case of the latter type, tumors tended to be malignant.In contrast, in the case of the former type, tumors tended to be benign with a few exceptions. There were nine patients with malignant tumors, four with cysts and five with encapsulated tumors.From these findings, we conclude that the classification of ultrasonographic echoes described in (1) and (3) are valuable in determining the characteristics of thyroid tumors.


Practica oto-rhino-laryngologica | 1981

A Report on 31 Patients with Nasopharyngeal Carcinoma with Special Reference to the Results of Treatment

Susumu Tamaki; Hiroyuki Kitamura; Hideo Higashitsuji; Masahiko Hayashi; Noriko Uehara; Nobuya Ushio

1) 昭和41年4月から昭和54年10月までの間に当科に入院加療を見った上咽頭悪性腫瘍は39例あり, そのうち癌腫は31例であった. これらの症例について統計学的観察を行い, 次の成績をえた.2) 男性20人, 女性11人で男性に多く, その平均年令は50.3才であった.3) 初発症状は, 耳症状, 鼻症状, 頸部腫瘤, 頭痛, 脳神経症状の順に高かった. また, 経過中脳神経症状を示した症例は14症例あり, そのうち第V, 第VI脳神経の症状が多かった.4) 初発症状発現から初診までに要した期間は, 6ヵ月以内が19人66%である. 初診時にほとんどの症例で診断がついた. 但し, 1症例では初診2ヵ月後にはじめて確診しえた.5) 扁平上皮癌が15症例, リンパ上皮腫が8症例, 未分化癌が8症例で, 31症例中23症例は Stage IV に属した.6) 治療は放射線療法を主体とし, これに化学療法を併用することが多かった. 治療効果を高めるため, 症例によっては抗癌剤の動脈潅流や口蓋開窓術, 頸部廓清術を加えた. その結果, 3年粗生存率は62.5%, 5年粗生存率は33.3%となった.7) 遠隔転移は, 肺, 骨に多く, 院内死亡例10例のうち3例は内頸動脈破裂が直接の死因であった.


Acta Oto-laryngologica | 1975

Lumbomuscular Proprioceptive Reflexes in body Equilibrium

Manabi Hinoki; Nobuya Ushio


Practica oto-rhino-laryngologica | 1976

Two phases of proprioceptive reflexes of ocular muscle origin from the standpoint of body equilibrium.

Nobuya Ushio; Manabi Hinoki; Shunichi Shizuku; Kenjiro Matsuura; J. B. Baron; J. C. Bessinetone; M. Pacifici; P. M. Gagey; J. Meyer


Practica oto-rhino-laryngologica | 1975

Neurotological Studies on the Symptoms of CraniCervical Injury

Nobuya Ushio; Kenjiro Matuura; Manabi Hinoki; Sonoji Hine; Shuji Okada; Mamoru Nakagawa; Kazuhito Nakanishi; Fusako Yamanaka; Hiroshi Satake; Hiroe Enomoto; Yoshio Ishida; Jiro Fukumoto; Yutaka Tada; Hiroshi Niki; Satoshi Koike; Taizo Ichibangase; Shunichi Shizuku


Practica oto-rhino-laryngologica | 1973

Studies on Proprioceptive Reflexes of Lumbo-muscular Origin from the Standpoint of Body Equilibrium

Nobuya Ushio


Practica oto-rhino-laryngologica | 2001

A Case of the Cocklebur Foreign Body in the Larynx.

Tomoko Tateya; Hiroyuki Kitamura; Shin-ichi Takagita; Yuka Iwahashi; Yasutaka Kawata; Masakazu Miyazaki; Nobuya Ushio


Practica oto-rhino-laryngologica | 1981

Le Vertige D' Origine Proprioceptives Des Muscles Moteurs Oculaires

Nobuya Ushio; Hideyuki Fukushima; Tomoyuki Haji; Tokuya Takatani; Manabi Hinoki; Seiji Kishimoto; Hiroyuki Kitamura; Hideo Higashitsuji; Masahiko Hayashi; Susumu Tamaki; J. B. Baron

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Seiji Kishimoto

Tokyo Medical and Dental University

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Sonoji Hine

University of Tokushima

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Yutaka Tada

University of Tokushima

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