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[Benign epileptic infantile spasms].

O Dulac, P Plouin, I Jambaque

    Revue D'Electroencephalographie Et De Neurophysiologie Clinique
    |December 1, 1986
    PubMed
    Summary
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    Fourteen infants with infantile spasms showed favorable outcomes and normal development. This specific type of idiopathic infantile spasms appears to be a non-lesional epilepsy, distinct from those linked to focal lesions.

    Area of Science:

    • Neurology
    • Pediatric Neurology
    • Epileptology

    Context:

    • Infantile spasms (IS) are a severe epilepsy syndrome in infants.
    • Idiopathic IS can have favorable or unfavorable prognoses.
    • Distinguishing between IS subtypes is crucial for predicting outcomes.

    Purpose:

    • To characterize a specific subgroup of idiopathic infantile spasms (IS) with a favorable outcome.
    • To differentiate this subtype from IS associated with underlying brain lesions.
    • To analyze electroencephalogram (EEG) and developmental features in infants with favorable IS.

    Summary:

    • A study of 100 infants identified 14 with idiopathic infantile spasms and favorable outcomes.
    • These infants exhibited normal development, early object reaching, and moderate regression without loss of eye-following.

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  • EEG findings included identifiable basic activity and sleep spindles, with no slow wave focus even after diazepam; spasms were independent during clusters.
  • This subtype represents a non-lesional epilepsy, contrasting with idiopathic IS linked to pre-existing focal lesions causing cognitive issues.

    • Impact:

    • Identifies a distinct, non-lesional form of idiopathic infantile spasms with a positive prognosis.
    • Highlights specific EEG and developmental markers for favorable IS outcomes.
    • Informs differential diagnosis and prognostic assessment in infants with infantile spasms.