====== Landau-Kleffner syndrome versus ECSWS ======

^ EG aspects                        ^ [[:content:landau-kleffner_syndrome|Landau-Kleffner syndrome]]     | [[content:epileptic_encephalopathy_with_continuous_spike-waves_during_sleep|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:[(:cite:1904218342>[[isbn>1904218342]])].