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Images in Clinical Medicine
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Volume 334:634 March 7, 1996 Number 10
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Periodic Lateralized Epileptiform Discharges

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Figure 1A.



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Figure 1. Electroencephalography in a 13-year-old boy with fever, altered sensorium, and sudden onset of seizures reveals complex repetitive discharges composed of spiky elements mixed with slower waveforms (Panel A). They are seen diffusely in the left (L) hemisphere (leads 1 to 8), occurringat intervals of approximately 2.5 seconds (arrows). The right (R) hemisphere (leads 11 to 18) shows abnormally slow background activity of 2 Hz per second (delta rhythm) compatible with the presence of acute encephalopathy. For comparison, an electroencephalogram obtained in a normal, awake subject is shown in Panel B. There is normal background activity of 11 . . . [Full Text of this Article]

 

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Extract | Full Text  
N Engl J Med 1996; 335:209, Jul 18, 1996. Correspondence

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