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Landau-Kleffner syndrome versus ECSWS
| EG aspects | Landau-Kleffner syndrome | ECSWS |
|---|---|---|
| CSWS | 80% | 100% |
| Main spike localisation | Temporal | Frontal |
| Clinical aspects | ||
| Seizures | Three-quarters of patients | All patients |
| Symptomatic causes | Rare (~10% abnormal MRI) | One third (~33% abnormal MRI) |
| Primary language impairment | Verbal auditory agnosia | Expressive >receptive aphasia |
| Psychomotor/behavioural deficits | Common (45%) | Nearly all (95%) |
| Onset of cognitive impairment | Verbal auditory agnosia | Global |
| Prognosis | Half reach near-normal life | One-quarter reach near-normal life |
source:Source:Panayiotopoulos CP. The Epilepsies: Seizures, Syndromes and Management. Oxfordshire (UK): Bladon Medical Publishing; 2005.
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