鐙骨筋反射に関する研究

スポンサーリンク

概要

• 論文の詳細を見る

• In this paper the following items were studied and discussed.1. Mechanism of Stapedius Reflex (SR) decay.It has been claimed that SR decay could not be attributed only to the stapedius muscle fatigue.In this experiment, second stimuli of lower tone were added to an ipsilateral ear and SR of the contralateral ear was recorded in the adult cat, while SR decay was observed by continuous 4kHz stimuli. The response magnitude of obtained SR induced by second tone stimuli was dependent on the difference of the frequency of second stimulus tone, in that second stimuli of lower tone (eg. 1kHz) elicited bigger SR magnitude than higher tone (eg. 2kHz).From the above results, it was concluded that SR decay was not only caused by the stapedius muscle fatigue, but also by the acoustic fatigue.2. Influence of anestheticus on the SR decay.The magnitude of SR induced by 1kHz pure tone stimuli was compared among slightly anesthetized and well-anesthetized cats with pentobarbital-Na by intra-peritoneal administrationand the cat anesthetized with Ketalar which has only slight influence on the brain stem. The following results were obtained.In the well-anesthetized cat marked SR decay was recorded by continuous 1kHz pure tone stimuli, while in the slightly anesthetized cat and the cat anesthetized by intra-muscular administration of Ketalar no change in the magnitude of SR was observed. From these results it was concluded that the shift of acoustic threshold in well-anesthetized cat was due to SR decay.3. SR test for the evaluation of prognosis of peripheral facial nerve palsy.In 107 cases of Bells palsy, 86 cases showed almost complete recovery of facial movement in which SR was first recorded within 40 days from the onset, while 21 cases showed incomplete recovery whose SR was first recorded after 40 days. In the cases with Ramsay Hunt syndrome the relation was the same as was observed in Bells palsy.From this fact it was concluded that SR test was useful for the evaluation of prognosis of peripheral facial nerve palsy.

• 社団法人 日本耳鼻咽喉科学会の論文

著者

• 松居 敏夫

  神戸大学医学部耳鼻咽喉科学教室

関連論文

• 第33回 日本平衡神経科学会秋季学会
• 鐙骨筋反射に関する研究
• The Results of the Treatment for Carcinoma of the Hypopharynx and Cervical Esophagus
• 外傷性顔面神経麻痺の経過について--保存的治療及び減荷術施行40例に関して (服部浩教授開講10周年記念論文集)
• 下咽頭・喉頭の重複癌の2例 (服部浩教授開講10周年記念論文集)
• 喉摘後T-Eshuntによる新しい発声手術方法
• 喉摘後丁一EshURtによる新しい発声手術方快

スポンサーリンク