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Cognitive assessment of infants with West syndrome: how useful is it for diagnosis and prognosis?
F Guzzetta1, A Crisafulli, M Isaya Crinó
1Istituto di Neuropsichiatria Infantile, Policlinico Universitario, Messina, Italy.
Insights
West syndrome in infants can cause temporary cognitive issues during acute stages and lasting effects. Previous mental impairment is a key predictor of long-term cognitive outcomes in children with West syndrome.
Area of Science:
- Pediatric Neurology
- Developmental Neuroscience
- Epileptology
Background:
- West syndrome is a severe form of epilepsy in infants.
- Cognitive impairment is a common complication of West syndrome.
- Understanding prognostic factors is crucial for managing affected children.
Purpose of the Study:
- To assess cognitive competence in infants with West syndrome.
- To differentiate between acute and long-term cognitive impairments.
- To identify predictors of cognitive outcome in West syndrome.
Main Methods:
- Longitudinal follow-up of 31 infants diagnosed with West syndrome.
- Cognitive assessments conducted before, during, and after the acute phase.
- Analysis of cognitive trajectories and developmental quotient progression.
Main Results:
- Two types of cognitive impairment were observed: transient (acute stage, arousal disturbances) and persistent (long-term sequelae).
- Previous mental impairment was highlighted as a significant prognostic factor.
- Progression of the developmental quotient during the acute stage strongly predicted long-term mental outcome.
Conclusions:
- Cognitive impairment in West syndrome has both acute and chronic components.
- Pre-existing cognitive deficits are critical for predicting long-term outcomes.
- Serial cognitive assessment, particularly developmental quotient changes, is vital for prognosis.
Abstract:
Thirty-one infants with West syndrome were followed up. Their cognitive competence was assessed before the onset of the disease, and during and after the acute stage. Two kinds of cognitive impairment were identified: the first was transitory, linked to the acute stage and mainly consisting of arousal disturbances; the second was the well known long-term sequela. It is not possible to exclude the aetiological role of a persistent, severe epileptic change: however, this study emphasizes the prognostic value of previous mental impairment. In serial cognitive assessment during the acute stage, the progression of the developmental quotient was the best indicator of a good mental outcome, and vice versa.