ArticleEpilepsy & behavior reports2021
Acquired visual agnosia as an uncommon presentation of epileptic encephalopathy in a 6-year-old boy with CSWS.
Article in Epilepsy & behavior reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 7 citations in OpenAlex.
- Lesion-network mapping in task-dependent frequencies uncovers remote consequences of focal damage.Imaging neuroscience (Cambridge, Mass.) · 2025Article
- Continuous Spike-Waves during Slow Sleep Today: An Update.Children (Basel, Switzerland) · 2024Review
- Serial neuropsychological testing before and after hemispherectomy in a child with electrical status epilepticus in slow wave sleep.Epilepsy & behavior reports · 2022Article
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6 authors at 3 institutions in 1 country.
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Abstract
backgroundAcquired visual agnosia in the context of continuous spikes and waves during slow sleep (CSWS) is rarely described. We present a case of an almost 7-year-old boy who lost his ability to name pictures and recognize familiar faces. Initial encephalography (EEG) revealed sleep induced epileptiform activity with a spike-wave index (SWI) of 100%, predominanting in the left posterior head region.
methodsSerial neuropsychological testing with concomitant EEG was done during the first 18 months of treatment with intravenous methylprednisolone. We administered intelligence scales, verbal tasks (memory, fluency), visual tasks (drawings, search, face recognition), and tasks requiring visual-verbal integration (picture naming, visual closure). ANALYSES: Neuropsychological recovery studied with reliable cognitive change cut-offs and 95% confidence intervals.
resultsWith treatment, there was an improvement of the EEG pattern (SWI reduction to 45%), followed by a relapse (SWI 82%). Neuropsychological measures in part synchronized with improvement, stability, and fluctuating values. Significant increases were seen on Verbal Comprehension Index and semantic memory. Visual Spatial Index remained unchanged (67 to 73). Naming pictures showed only limited change. Interpreting degraded pictures remained extremely difficult. DISCUSSION: Acquired visual agnosia may be seen in children with CSWS. Early recognition, prompt accurate treatment and tailored neuropsychological assessment remain crucial.
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