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KMID : 0960920020010020133
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Dementia and Neurocognitive Disorders
2002 Volume.1 No. 2 p.133 ~ p.137
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A Case of Idiopathic Normal Pressure Hydrocephalus Showing Marked Improvement of Frontal Lobe Dysfunction
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Park Kyung-Won
Kang Do-Young
Kim Jae-Woo
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Abstract
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Normal pressure hydrocephalus (NPH) is one of the few treatable causes of dementia. The dementia type of NPH is subcortical and characterized by inertia, forgetfulness, and poor executive function. We report a patient with idiopathic NPH who showed marked improvement of frontal executive dysfunction after shunt operation. Brain MRI showed marked enlargement of ventricular system, and neuropsychological tests performed before shunt operation demonstrated cognitive impairment predominantly in frontal-executive and memory functions. Brain SPECT showed diffusely decreased perfusion in the cerebral cortex and subcortical area. After shunt operation, the diffuse hypoperfusion on SPECT improved, as did frontal-executive and memory functions on neuropsychological tests.
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KEYWORD
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Normal pressure hydrocephalus, Frontal lobe dysfunction, Brain perfusion
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