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Infantile spasms combined with partial seizures: electroclinical study of eleven cases
F Viani1, A Romeo, M Mastrangelo
1Centro di epilettologia, Ospedale Regina Elena, Milano, Italia.
Insights
This study investigated infantile spasms (IS) combined with partial seizures in 11 infants, finding they represent a distinct subgroup with significant psychomotor retardation, differing from West syndrome.
Area of Science:
- Pediatric Neurology
- Epileptology
- Developmental Neuroscience
Background:
- Infantile spasms (IS) are a severe epilepsy syndrome in infancy.
- Combined IS and partial seizures present unique clinical challenges.
- Distinguishing IS subtypes is crucial for prognosis and treatment.
Purpose of the Study:
- To characterize a subgroup of infants with combined infantile spasms and partial seizures.
- To differentiate this subgroup from the established West syndrome.
- To analyze the clinical and polygraphic features and long-term outcomes.
Main Methods:
- Retrospective analysis of 11 infants with combined IS and partial seizures.
- Clinical and polygraphic (EEG) data review.
- Neurological examination and neuroimaging (CT/MRI) assessment.
- Long-term follow-up of seizure control and developmental outcomes.
Main Results:
- All 11 infants had neurological or CT/MRI abnormalities; 5 had a family history of epilepsy.
- The age of onset for spasms ranged from 6 days to 9 months.
- Seizure control was achieved in only 2 of 10 followed infants.
- All patients developed mild to severe psychomotor retardation.
Conclusions:
- Combined infantile spasms and partial seizures constitute a distinct epileptic subgroup in infants.
- This subgroup is characterized by significant neurodevelopmental impairment.
- The findings suggest this condition is separate from West syndrome, necessitating tailored management strategies.
Abstract:
We studied 11 infants (7 males) with combined infantile spasms (IS) and partial seizures. The age of onset of the spasms ranged from 6 days to 9 months. All of the children had neurological or CT/MRI abnormalities, and five also had a family history of epilepsy. The clinical and polygraphic patterns of the clusters of spasms combined with partial seizures were analysed. Ten infants were followed-up for a mean period of 3 years, 4 months (range 1 year 10 months to 4 years 11 months). At the last check-up, the seizures were controlled in 2 patients; the others continued to have spasms and/or partial seizures. All of the patients developed mild to severe psychomotor retardation. This condition defines a subgroup of infants presenting with IS, which is distinct from West syndrome.