Observation reveals that periodic sharp complexes indicate pathophysiologic changes in HSVE rather than poor prognosis.
For the electroencephalographer, focal temporal periodic complexes have been strongly associated with herpes simplex virus encephalitis (HSVE). The appearance and subsequent disappearance of these complexes has generally been held to herald a poor prognosis. This report involves an elderly man with HSVE who survived with no neurologic deficits despite the presence and later disappearance of periodic sharp complexes. This supports the view that the periodic complexes are more a function of the pathophysiologic changes caused by HSVE as opposed to a marker of tissue injury.
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Peña et al. (1987) studied this question.
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