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はじめに
Landar-Kleffner症候群(以下,LKSと略)は小児期に発症し獲得性失語を示す症候群で,その言語機能障害の予後は悪い1〜5)。しかし聴力検査,ABR,頭部CTやMRIで異常所見はなく3),正しい診察ができなければ自閉症や心因性疾患として経過観察してしまい,治療が遅れる可能性がある。
今回われわれは,LKS症例を経験したので文献的考察を加えて報告する。
A 7-year-old female presented with a rapid deterio-ration of speech comprehension and expression.
She had a past history of partial seizure at age ofthree years, but her development was normal.
There were no abnormal findings in her ear drum. ABR and MRI showed no abnormal findings. Her EEG showed frequent multifocal spike-wave discharges, which became continuous when she was asleep.
The diagnosis was Landau-Kleffner syndrome. She was given γ-globlin intravenously, but the symptoms were not changed. Then, she was given corticosteroid intravenously, and her speech was recovered.
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