前庭機能異常--その病態と臨床的特徴 (前庭機能異常の研究-1-)

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It is very important to discriminate the disorder with organic change and the temporal dysfunction in the peripheral vestibular system, in diagnosing and treating patients with otogenic vertigo.For the observation of clinical features in each type of the organic and the functional disorder, 155 vertiginous patients with some abnormal findings in the so-called routine vestibular tests were classified into the disease-groups, and were evaluated statistically in terms of significant difference of the abnormality ratio in every routine test among the disease-groups.In organic peripheral disorders such as Meniere's disease, the abnormality ratio appeared with significantly higher frequencies in statokinetic test (as abnormal tilting and deviating), caloric test (canal paresis—CP) and hearing test (loss of labyrinthine type) than in functional vestibular disorders such as orthostatic dysregulation. Namely the discriminating point to the organic and the functional disorder was in these three test findings. And it appears that the most of patients with cervical vertigo can be ascribed to the temporal dysfunction type, whereas the caloric CP was rarely found in the patients.The observations take issue with the conception as the “otogenic vertigo” is treating as the organic disorder, and a lot of this kind of vertigo in which cervical nystagmus and/or a positive Schellong's test result are present stems definitely from temporal functional disorder in the peripheral vestibular system, so that the therapy should be directed not to peripheral vestibular system but to some primary factors influencing the system.
耳鼻咽喉科臨床学会の論文

前庭機能異常--その病態と臨床的特徴 (前庭機能異常の研究-1-)

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