Benign EEG Variants
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Small Sharp Spikes (SSS)/Benign Epileptiform Transients of Sleep (BETS) | show 🗑
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show | Best appreciated during drowsiness & light sleep. Likely present when background contains sharply contoured waveforms (6-11 Hz) & are usually recorded over the anterior or mid-temporal head regions.
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show | Seen in children & adolescents during drowsiness & light non-REM sleep. These rhythmic bursts consist of trains of arch shaped waves & occur bisynchronously or independently. The bursts are usually maximal voltage over the posterior temporal head region.
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6-Hz Spike and Wave/Phantom Spike and Wave | show 🗑
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Rhythmic Temporal Theta Bursts of Drowsiness (RTTD) | show 🗑
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show | Occurs in w/hyperventilation in adults over the age of fifty. Also present during drowsiness & rest. Consists of rhythmic, sharply contoured waveforms that evolve into a sustained 5 to 6 Hz pattern. Widespread & maximal over the parietal & posterior tempo
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show | Consists of trains of rhythmic 5-7 Hz activity recorded over midline electrodes. Recorded during awake and drowsy states in both children and adults and may have a smooth, sinusoidal, arciform, spikey, or mu like appearance.
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show | Present over skull defects. Higher in amplitude and may have a sharp appearance.
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Created by:
akesselman
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