著者

佐川 雄一 大谷 巌 鈴木 聡明

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.106, no.7, pp.739-749, 2003-07-20 (Released:2008-03-19)

参考文献数

24

被引用文献数

2 1

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ヒト側頭骨病理標本を用い,耳小骨靱帯周囲の硬化性病変について観察を行い.次の結果を得た.1. 非炎症群では前ツチ骨靱帯,後キヌタ骨靱帯で,30歳未満の群と30歳以上の群の間で硬化性所見に有意差を認めた.このことは,硬化性所見は加齢とともに増加することを意味している.2. 慢性炎症群では前ツチ骨靱帯,後キヌタ骨靱帯について,非炎症群に比較し,各年代とも硬化性変化の程度が強く,また.年代間に有意差を認めなかった.炎症の影響が加齢の影響よりも強く,炎症が起きると加齢と関係なく硬化性変化が進むと考えられた.硬化性変化を進行させないためには,中耳炎,特に小児の中耳炎の治療の際に.炎症を速やかに改善させ,慢性期に至らせないよう注意が必要である.3. 輪状靱帯については,非炎症群,慢性炎症群のいずれについても,各年齢間で有意差を認めなかったが,前ツチ骨靱帯,後キヌタ骨靱帯よりも硬化性所見は少なかった.また,非炎症群と慢性炎症群の比較でも,60歳代の群を除き,有意差を認めなかった.このことから,輪状靱帯は,加齢や炎症の影響を受けにくく,硬化性変化が進行しにくいことが示唆された.4. 輪状靱帯よりも前ツチ骨靱帯や後キヌタ骨靱帯で硬化性変化が起きる頻度が高いことは,ツチ骨とキヌタ骨を残した手術では伝音系全体の可働性が制限され,十分聴力が改善しない可能性があることを意味し,炎症耳の手術の際は,年齢に関係なく前ツチ骨靱帯,後キヌタ骨靱帯の可動性を確認し,可動性が損なわれている場合には,これらの靱帯を切離するような術式が有効であると考えられた.

著者

深澤 仁美 大谷 巌 大内 仁 永盛 肇

出版者

日本耳科学会

雑誌

臨床耳科 (ISSN:18845800)

巻号頁・発行日

vol.9, no.1, pp.282-283, 1982 (Released:2011-08-10)

参考文献数

2

著者

佐久間 仁 大河内 幸男 馬場 陽子 大谷 巌 平山 和美 佐藤 正憲 児玉 南海男

出版者

耳鼻咽喉科臨床学会

雑誌

耳鼻咽喉科臨床 補冊 (ISSN:09121870)

巻号頁・発行日

vol.1991, no.Supplement43, pp.70-76, 1991-04-25 (Released:2012-11-27)

参考文献数

25

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A case of brainstem cavernous angioma associated with hearing loss and dizziness is reported. A 25-year-old female initially complained of hearing loss in the leftear and dizziness. Six months thereafter she suddenly developed additional symptoms, and was diagnosed as having hemorrhage in the brainstem on the basis of CT scan and MRI findings. Otological examination revealed low- and high-frequency hearing loss and abnormal ABR consisting of only wave I in the left ear. Follow-up MRI showed cavernous angioma, which was surgically removed.

著者

角田 保雄 尾股 丈夫 大谷 巌

出版者

耳鼻咽喉科臨床学会

雑誌

耳鼻咽喉科臨床 補冊 (ISSN:09121870)

巻号頁・発行日

vol.1995, no.Supplement83, pp.53-67, 1995-08-01 (Released:2012-11-27)

参考文献数

41

被引用文献数

1

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Correlations were made between audiometric pattern (especially flat and gradual high tone loss)and speech discrimination score (SDS) in 255 ears with sensorineural hearing loss that were tested at the Department of Otolaryngology of Shirakawa Kousei General Hospital during the past 6 years.First, the audiometric pattern was defined on all frequencies (0.125 k-8 kHz). SDS of each audiometric pattern resembled that in all similarly affected ears, but in younger ears (under 75 years old, the average value of pure tone hearing level subtracted from speech reception threshold was under 10 dB), SDS of patients with flat audiogram or abrupt high tone loss (mainly 8 kHz) maintained a good score (over 70%) at 10 dB intervals below 70 dB, then sharply decreased at 70 dB. However, SDS of patients with gradual high tone loss decreased in proportion to hearing loss. This fact supports Schuknecht's classification of hearing loss in presbycusis. Furthermore, this suggests that there is a boundary of good SDS at the 60 dB level, at which SDS was marked by deafness and a flat audiometric pattern caused by atrophy of the stria vascularis.Second, the audiometric pattern was defined by the slope of the audiogram (value of 2 kHz loss subtracted from 0.5 kHz loss, and 4 kHz loss from 0.5 kHz loss). The gradual high tone loss group had a good SDS (over 70%) under 50 dB. In cases involving hearing loss reaching and exceeding 50 dB, SDS declined abruptly. Good SDS almost disappeared and poor SDS (under 50%) increased suddenly. This suggests that not only that the decrease in neurons reached the minimum necessary to maintain a good SDS, but also that the neurons which transfer information under 50 dB exerted great influence on SDS.Differences were analyzed, between each audiometric pattern and between the group before abrupt deccrease in SDS and the group after the abrupt decrease in the flat audiogram or gradual high tone loss group.

著者

鹿野 真人 桑畑 直史 佐久間 仁 大谷 巌

出版者

日本喉頭科学会

雑誌

喉頭 (ISSN:09156127)

巻号頁・発行日

vol.11, no.2, pp.62-67, 1999-12-01 (Released:2012-09-24)

参考文献数

7

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A survey regarding post-laryngectomy olfaction was conducted on 17 patients. 12 patients expressed the ability to smell after laryngectomy. All of five patients who had esophageal voice and five of 10 patients who had electrolaryngeal voice stated that they could smell. The post-operative period before patients indicated that they could smell ranged from 0 to 5 years. These patients who claimed the ability to smell could not do so with complete function. 11 patients (65%) hoped to regain normal olfaction.In order to achieve this goal, we manufactured a tool to restore the capability of smelling. Utilization of this tool is projected to restore normal nasal airflow and to improve the olfactory threshold. This tool offers an invaluable improvement of the quality of life of patients that have undergone laryngectomy.