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Shirakawa H.,Clinic Nagisa | Katoh H.,Suda Hospital
Journal of the Japan Epilepsy Society | Year: 2015

We investigated the memory impairment among 5 elderly patients who suffer from symptomatic partial epilepsy. They have short-term and declarative memory impairments including episodic and semantic memory impairments. It is difficult to distinguish epileptic short-term memory impairment from dementia. Decreasing seizures by medication improves short-term memory impairment. This is the remarkable difference between epileptic memory impairment and dementia. Some episodic memory impairments were improved and some were not. Semantic memory impairment was improved. There are 2 ways to diagnose wrongly; one is to regard complex partial seizures as the symptoms of dementia and the other is to regard the short-term memory impairments that often continue for hours or for days in some cases after the seizures as the symptoms of dementia. The hippocampus seemed to be concerned with prolonged memory dysfunction. Though the memory impairment of dementia is an organic impairment, the epileptic memory impairment seems to be a functional disorder and mostly can be recovered.

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