小児のめまいと脳腫瘍
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概要
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In the past eight years and eight months 1, 502 cases were examined by electronystagmography (ENG). Among them 36 cases (2.4%) were vertiginous or dizzy children between six to fourteen of age. Twenty-three cases were boys and 13 cases were girls. Vertigo was chief complaint in 16 cases and dizziness or dysequilibration was complained in 20 cases.Eleven cases were peripheral vestibular dysfunction and 18 cases were central vestibular disorder. Most important disease is infratentorial brain tumor: two medulloblastoma, two ependymoma, one astrocytoma, one pontine glioma. These tumors show many symptoms even under fundamental vestibular function tests such as detection of gaze nystagmus and righting reflex test.In ENG examination moderately or remarkably abnormal eye tracking test, decreased optokinetic fusion limit(<60°/sec.)in optokinetic nystagmus and dysrhythmia in damped pendular rotation test indicate disorders of central vestibular system.It is necessary for otolaryngologist never to miss brain tumor of posterior fossa complaing to dysequilibration or vertigo. These tumors are suspected by routine vestibular tests.
- 社団法人 日本耳鼻咽喉科学会の論文
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