EPILEPSY WITH AUDITORY FEATURES (EAF)

Overview
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Seizure Classification
Generalized onset seizure
- Motor Onset
- Non-Motor Onset
Focal Onset Seizure
- By Onset Feature
- Focal to Bilateral Tonic-Clonic
- Hemispheric lateralization
- Lobar localization
  - Frontal
  - Temporal
  - Parietal
  - Occipital
Unknown Onset Seizure
Neonatal Seizure
Epilepsy Classification
Generalized Epilepsy
Focal Epilepsy
Generalized and Focal Epilepsy
Unknown Epilepsy
Epilepsy Syndromes
Neonate/Infant
- Self-limited
- With developmental and epileptic encephalopathy
Childhood
- Self-limited focal epilepsy syndromes
  - Remission expected in all cases by adolescence
    - Self-limited epilepsy with centrotemporal spikes
    - Self-limited epilepsy with autonomic seizures
  - Remission expected in most cases by adolescence
    - Childhood occipital visual epilepsy
    - Photosensitive occipital lobe epilepsy
- Genetic generalised epilepsy syndromes
  - Epilepsy with eyelid myoclonia
  - Epilepsy with myoclonic absence
- Idiopathic generalised epilepsy syndrome
  - Childhood absence epilepsy
- With developmental and/or epileptic encephalopathy
Variable Age
- Idiopathic generalised epilepsy syndromes
- Focal epilepsy syndromes
- Combined generalised and focal epilepsy syndrome
  - Epilepsy with reading-induced seizures
- With developmental and/or epileptic encephalopathy or progressive neurological deterioration
  - Progressive myoclonus epilepsies
  - Rasmussen syndrome
Epilepsy Etiologies
Genetic Etiologies
- Chromosomal abnormalities
- Gene abnormalities
Structural Etiologies
- Malformations of cortical development
- Vascular malformations
- Hippocampal sclerosis
- Hypoxic-Ischemic
- Traumatic brain injury
- Tumors
- Porencephalic Cyst
Metabolic Etiologies
Immune Etiologies
Infectious Etiologies
Unknown Etiologies
Encephalopathy
Epilepsy imitators

EPILEPSY WITH AUDITORY FEATURES (EAF)

	Mandatory	Alerts	Exclusionary
Seizures	Focal sensory auditory seizures and/or focal cognitive seizures with receptive aphasia		Generalized seizures Other focal seizures
EEG		Generalized epileptiform abnormality
Age at onset
Development at onset			Moderate or greater intellectual impairment
Neurological exam		Abnormal exam
Imaging	Normal or focal cortical dysplasia
Are MRI or ictal EEG required for diagnosis? An MRI is required for diagnosis to exclude other causes An ictal EEG is not required for diagnosis
Syndrome without laboratory confirmation: in resource-limited regions, MRI is still required to exclude other causes

NOTE Alert criteria are absent in the vast majority of patients with the syndrome, but rarely can be seen. Their presence should result in caution in diagnosing the syndrome and consideration of other conditions