What is the prevalence of symptomatic epilepsy in children with infantile spasm (West syndrome)?

Updated: Jan 11, 2019
  • Author: Tracy A Glauser, MD; Chief Editor: Stephen L Nelson, Jr, MD, PhD, FAACPDM, FAAN, FAAP  more...
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Answer

Of patients with infantile spasms, 70-75% have symptomatic epilepsy; this percentage depends on the degree of sophistication of diagnostic studies. (The development of more exquisite neurodiagnostic techniques is expected to alter the relative proportion of symptomatic, cryptogenic, and idiopathic cases that has been reported.)


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