Age of onset and outcome in 'acquired aphasia with convulsive disorder' (Landau-Kleffner syndrome).
The relationship between age at onset of language disorder and eventual outcome was examined in 45 cases of Landau-Kleffner syndrome reported in the literature, all of whom had been followed up to at least 12 years of age. A strong relationship was found, which is opposite to that for childhood aphasia after structural lesions of the left hemisphere; i.e. in Landau-Kleffner syndrome, the older the child at onset the better the prognosis for language.
Bishop
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D000367:Age Factors; D001037:Aphasia / Q000175:diagnosis*; D002648:Child; D002675:Child, Preschool; D004569:Electroencephalography; D004833:Epilepsy, Temporal Lobe / Q000175:diagnosis*; D005500:Follow-Up Studies; D006801:Humans; D007805:Language Development Disorders / Q000175:diagnosis; D013577:Syndrome