STAPEDIAL REFLEX IN PARKINSON'S DISEASE
By means of impedance audiometry, the stapedial reflex was recorded and analyzed in 10 patients with Parkinson's disease to determine whether the reflex shows changes. Eight young and eight elderly normal subjects were also as controls. Impedance changes were recorded on an X-Y plotter by contr...
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| Published in | Journal of The Showa Medical Association Vol. 57; no. 2; pp. 149 - 154 |
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| Main Author | |
| Format | Journal Article |
| Language | English Japanese |
| Published |
The Showa University Society
1997
昭和大学学士会 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 0037-4342 2185-0976 |
| DOI | 10.14930/jsma1939.57.149 |
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| Abstract | By means of impedance audiometry, the stapedial reflex was recorded and analyzed in 10 patients with Parkinson's disease to determine whether the reflex shows changes. Eight young and eight elderly normal subjects were also as controls. Impedance changes were recorded on an X-Y plotter by contralateral sound stimulation. Sounds applied were 500Hz and 1000Hz, 10dB above the threshold of the reflex, for 1.5 seconds. Four latencies in the reflex curve were evaluated in normal subjects and in patients with Parkinson's disease. There were no significant differences in the latencies between young and elderly normal subjects. However, one of the four latencies (D50) was significantly longer in patients with Parkinson's disease than in the elderly normal subjects. We hypothesize that disturbance of the extrapyramidal system causes prolongation of the latency of the stapedial reflex in patients with Parkinson's disease. |
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| AbstractList | By means of impedance audiometry, the stapedial reflex was recorded and analyzed in 10 patients with Parkinson's disease to determine whether the reflex shows changes. Eight young and eight elderly normal subjects were also as controls. Impedance changes were recorded on an X-Y plotter by contralateral sound stimulation. Sounds applied were 500Hz and 1000Hz, 10dB above the threshold of the reflex, for 1.5 seconds. Four latencies in the reflex curve were evaluated in normal subjects and in patients with Parkinson's disease. There were no significant differences in the latencies between young and elderly normal subjects. However, one of the four latencies (D50) was significantly longer in patients with Parkinson's disease than in the elderly normal subjects. We hypothesize that disturbance of the extrapyramidal system causes prolongation of the latency of the stapedial reflex in patients with Parkinson's disease. By means of impedance audiometry, the stapedial reflex was recorded and analyzed in 10 patients with Parkinson's disease to determine whether the reflex shows changes. Eight young and eight elderly normal subjects were also as controls.Impedance changes were recorded on an X-Y plotter by contralateral sound stimulation. Sounds applied were 500Hz and 1000Hz, 10dB above the threshold of the reflex, for 1.5 seconds. Four latencies in the reflex curve were evaluated in normal subjects and in patients with Parkinson's disease. There were no significant differences in the latencies between young and elderly normal subjects. However, one of the four latencies (D50) was significantly longer in patients with Parkinson's disease than in the elderly normal subjects.We hypothesize that disturbance of the extrapyramidal system causes prolongation of the latency of the stapedial reflex in patients with Parkinson's disease. パーキンソン病は黒質線条体, 淡蒼球, 青斑核などの大脳基底核病変を中心とした神経核変性疾患であり, 錐体外路症状を中心に多様な症状を呈する.近年インピーダンスオージオメトリーの測定に関する機器の普及により, 神経変性疾患におけるアブミ骨筋反射の異常が報告されてきているが, パーキンソン病についてはほとんど報告が見られていない.今回われわれは, パーキンソン病患者10名についてアブミ骨筋反射を記録し, その波形より各種潜時を測定し正常耳と比較検討した.対象は太田熱海病院神経内科入院中のパーキンソン病患者と, 正常若年者及び正常老年者で, その聴力, アブミ骨筋反射閾値を測定し, ついでアブミ骨筋反射をX-Yレコーダに記録して諸潜時の測定を行なった.その結果, 正常若年者と正常老年者の間には差が見られず, 正常老年者とパーキンソン病患者の間においてアブミ骨筋反射潜時の一部に延長を認めた.このことは, 従来のアブミ骨筋反射の反射経路の他にも別の経路が存在することを推測させた. |
| Author | YOKOKAWA, Tomohisa |
| Author_FL | 横川 友久 |
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| References | 13) Gacek, R.R. and Radpour, S.: Fiber orientation of the facial nerve : An experimental stady in the cat. Laryngoscope 92: 547-556, 1982. 11) Borg, E.: On the neuronal organization of the acoustic middle ear reflex. Brain Res. 49: 101-123, 1973. 7) 室根郁男: 錐体外路疾患. 内科マニュアル. (阿部裕, 他編) , pp, 29-31, 永井書店, 大阪, 1972. 14) Hall., J.W. and Jerger, J.: Acoustic reflex characterristics in spastic dysphonia. Arch. Otolaryngol. 102: 411-415, 1976. 5) 山根雅昭: 神経・筋疾患と耳小骨筋反射. インピーダンスオージオメトリー (野村恭也, 本庄巌編) , pp. 111-129, 金原出版, 東京, 1983. 4) McCall, G.N.: Acoustic impedance meas-urement in the study of patient with spas-modic dysphonia. J. Speech Hear. Dis. 38: 250-255, 1973. 1) 室伏利久, 山根雅昭, 水野正浩, 他: パーキンソン病患者のアブミ骨筋反射の検討-a pre-liminary report-. 臨床耳科16: 79-85, 1989. 9) Lyon, M.J.: The central location of the motor neurons to the stapedius muscle in the cat. Brain Res. 143: 437-444, 1978. 12) Tatton, W.G. and Lee. R.G.: Evidence for abnormal long-loop reflexes in rigid Parkin-sonian patients. Brain Res. 100 : 671-676, 1975. 8) 長崎浩: 老化の科学, 現代化学増刊24: 111-114, 1994. 6) Norris, T.W., Stelmachowicz, P., Bowling, C., et al.: Latency measures of the acous-tic reflex. Audiology 13 : 464-469, 1974. 3) Jerger, J.F., Oliver, TA., Chmiel, R.A., et al.: Patterns of auditory abnormality in multiple sclerosis. Audiology 25 : 193-209, 1986. 2) Murofusi, T., Yamane, M. and Osanai, R.: Stapedial reflex in Parkinson's disease. J. Oto-Rhino-Laryngol. Relat. Special. 54 255-258, 1992. 10) 水野美邦: パーキンソン病. pp. 7-14, 59-61, 129-130, 星和書店, 東京, 1984. |
| References_xml | – reference: 13) Gacek, R.R. and Radpour, S.: Fiber orientation of the facial nerve : An experimental stady in the cat. Laryngoscope 92: 547-556, 1982. – reference: 4) McCall, G.N.: Acoustic impedance meas-urement in the study of patient with spas-modic dysphonia. J. Speech Hear. Dis. 38: 250-255, 1973. – reference: 1) 室伏利久, 山根雅昭, 水野正浩, 他: パーキンソン病患者のアブミ骨筋反射の検討-a pre-liminary report-. 臨床耳科16: 79-85, 1989. – reference: 11) Borg, E.: On the neuronal organization of the acoustic middle ear reflex. Brain Res. 49: 101-123, 1973. – reference: 2) Murofusi, T., Yamane, M. and Osanai, R.: Stapedial reflex in Parkinson's disease. J. Oto-Rhino-Laryngol. Relat. Special. 54 255-258, 1992. – reference: 5) 山根雅昭: 神経・筋疾患と耳小骨筋反射. インピーダンスオージオメトリー (野村恭也, 本庄巌編) , pp. 111-129, 金原出版, 東京, 1983. – reference: 8) 長崎浩: 老化の科学, 現代化学増刊24: 111-114, 1994. – reference: 10) 水野美邦: パーキンソン病. pp. 7-14, 59-61, 129-130, 星和書店, 東京, 1984. – reference: 6) Norris, T.W., Stelmachowicz, P., Bowling, C., et al.: Latency measures of the acous-tic reflex. Audiology 13 : 464-469, 1974. – reference: 12) Tatton, W.G. and Lee. R.G.: Evidence for abnormal long-loop reflexes in rigid Parkin-sonian patients. Brain Res. 100 : 671-676, 1975. – reference: 3) Jerger, J.F., Oliver, TA., Chmiel, R.A., et al.: Patterns of auditory abnormality in multiple sclerosis. Audiology 25 : 193-209, 1986. – reference: 9) Lyon, M.J.: The central location of the motor neurons to the stapedius muscle in the cat. Brain Res. 143: 437-444, 1978. – reference: 14) Hall., J.W. and Jerger, J.: Acoustic reflex characterristics in spastic dysphonia. Arch. Otolaryngol. 102: 411-415, 1976. – reference: 7) 室根郁男: 錐体外路疾患. 内科マニュアル. (阿部裕, 他編) , pp, 29-31, 永井書店, 大阪, 1972. |
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| SubjectTerms | impedance audiometry latency Parkinson's disease stapedial reflex アブミ骨筋反射 インピーダンスオージオメトリー パーキンソン病 潜時 |
| Title | STAPEDIAL REFLEX IN PARKINSON'S DISEASE |
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