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| content:developmental_and:or_epileptic_encephalopathy_with_spike-wave_activation_in_sleep_d:ee-swas [2024/03/23 20:40] – biju.hameed@gmail.com | content:developmental_and:or_epileptic_encephalopathy_with_spike-wave_activation_in_sleep_d:ee-swas [2024/03/23 20:47] (current) – [EEG] biju.hameed@gmail.com | ||
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| * The background activity during wakefulness may show focal or diffuse slowing and often contains focal or multifocal discharges, but it may be normal. | * The background activity during wakefulness may show focal or diffuse slowing and often contains focal or multifocal discharges, but it may be normal. | ||
| * Epileptiform discharges during wakefulness are not continuous. | * Epileptiform discharges during wakefulness are not continuous. | ||
| - | * In drowsiness and sleep, there is marked activation of epileptiform activity, with almost continuous, slow (1.5-2Hz) spike-wave in slow sleep, often occupying >50% of slow sleep. Typically, this activity is also seen in Stage II sleep[(: | + | * In drowsiness and sleep, there is marked activation of epileptiform activity, with almost continuous, slow (1.5-2Hz) |
| * SWAS is usually diffuse but may occur more focally (typically frontally) or multifocally. | * SWAS is usually diffuse but may occur more focally (typically frontally) or multifocally. | ||
| * In REM sleep, the discharges become less frequent or may even be absent. | * In REM sleep, the discharges become less frequent or may even be absent. | ||