Clinical and EEG Features of Complex Partial Seizures of Extratemporal Origin

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<jats:p><jats:bold>Summary: </jats:bold> Complex partial seizures (CPSs) of extratemporal origin are frequently misdiagnosed. Common reasons for diagnostic errors are failure to recognize the epileptic cause of the attacks or to appreciate localizing clinical seizure characteristics and nonspecific or misleading scalp EEG findings. This report describes clinical characteristics of two types of extratemporal CPSs, frontal and occipital. Frontal lobe CPSs are brief, frequent attacks that begin and end suddenly. They are dominated by complex, semi‐purposeful motor automatisms, and vocalization and sexual automatisms are common. Their often bizarre appearance frequently leads to a misdiagnosis of hysteria. Occipital lobe CPSs are characterized primarily by their spread pattern, which can follow various paths. They may mimic temporal lobe CPSs, sensorimotor partial seizures, or supplementary motor partial seizures. Scalp EEGs are frequently misleading. The initial clinical symptoms are the most important clue to correct diagnosis and include elemental visual symptoms, visual loss, eye pulling or movement sensations in the absence of detectable movement, rapid forced blinking or eye flutter, and contralateral eye deviation.</jats:p>

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  • Epilepsia

    Epilepsia 27 (s2), S46-, 1986-08

    Wiley

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