NIH Common Data Elements (CDE) Repository

General Details:

Name:: Seizure focal classification type
Steward:: NINDS
Definition:: The type of focal epileptic seizures, considered to originate within networks limited to one hemisphere, which may be discretely localized or more widely distributed, and may originate in subcortical structures, experience by the participant/subject.
Registration Status:: Qualified

Value	Code Name	Code Description
Without impairment of consciousness or responsiveness	Without impairment of consciousness or responsiveness	Without impairment of consciousness or responsiveness
With observable motor or autonomic components	With observable motor or autonomic components	Without impairment of consciousness or responsiveness-With observable motor or autonomic components (roughly corresponds to the concept of "simple partial seizure")
Involving subjective sensory or psychic phenomena only	Involving subjective sensory or psychic phenomena only	Without impairment of consciousness or responsiveness-Involving subjective sensory or psychic phenomena only (corresponds to the concept of "aura")
With impairment of consciousness or responsiveness	With impairment of consciousness or responsiveness	With impairment of consciousness or responsiveness (roughly corresponds to the concept of "complex partial seizure")
Evolving to a bilateral, convulsive seizure	Evolving to a bilateral, convulsive seizure	Evolving to a bilateral, convulsive seizure (involving tonic, clonic, or tonic and clonic components replaces the term "secondarily generalized seizure")

Definition:: The type of focal epileptic seizures, considered to originate within networks limited to one hemisphere, which may be discretely localized or more widely distributed, and may originate in subcortical structures, experience by the participant/subject.
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