温度性前庭刺激による指尖容積脈波の変化 : Plethysmographyの自浴E神経反応としての意義

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概要

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• This study was performed in order to examine whether a condition of subjective-objective autonomic nervous functions could been conjectured or not, from the rate of diminution of amplit-ude of plethysmogram while caloric irrigation. The subjects were 30 patients selected from from patients complaining of vertigo or equilibr-lum disturbance. These patients wer devided into 3 groups, that is, first group was patients of Menieres disease or Meniere syndrom, second group was patients of Orthostatic-dysreguation or vegetative dysregulation and third group was patients with loss of vestibular reaction involving acusticus neurinoma.A reflection photoelectric plethysmograph was attached on tip of second finger and vestibular stimulation the irrigation of water of 30°C and 40° into the external auditory canal for 40 seconds.The changes of amplitude of plethysmogram, the duration time of nystagmus and subjective-objective autonomic nervous symptomns were measured. Central and peripheral autonomic ervous function test were examined before or after the stimulation.This data was dealt with analysis of multiple egression and the correlation and the weight of factors were computed, Results1. Caloric stimulation resulted in the increase in 53%, the decrease in 19% and no change in 28% of pulse rate.2. A correlation was recognized between the rate of diminution of amplitude on maximum reaction point and the appearance of caloric nystagmus.3. Points of autonomic nervous symptoms registered the lowest point in the third group, next in the first group and the highest point in the second group.4. From the correlation coefficient, it is concluded that, there was correlation between the rate of diminution of amplitude and the duration time of nystagmus, autonomic nervous symptoms, Mecholyl test.5. Analysis of multiple regression resulted in the following regression equation.Y=43.173 +0.079503×1-0.82767×2+2.01735×3+4.2567×4- 2.0375X5- 1.3427X6.From that standard regreesion coefficient, it is considered that the rate of diminution of wave in caloric irrigation was mainly influenced by vestibular reaction and autonomic nervous system, especially central autonomic nerve.6. Multiple correlation coefficient of all subjects was 0.6975. The coefficient of second group was the highest value of 0.8301, the coefficient DP group was higher than the one cf CP group in first group.

• 社団法人 日本耳鼻咽喉科学会の論文

著者

• 上条 明

  信州大学医学部耳鼻咽喉科学教室

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• 温度性前庭刺激による指尖容積脈波の変化 : Plethysmographyの自浴E神経反応としての意義
• 温度性前庭刺激による指尖容積脈波の変化 : 第1報 正常者における反応様式

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