Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2002. Module: SNOMED CT core
Descriptions:
Id | Description | Lang | Type | Status | Case? | Module |
73622018 | Benign Rolandic epilepsy | en | Synonym (core metadata concept) | Active | Only initial character case insensitive (core metadata concept) | SNOMED CT core |
5348013019 | Self-limited epilepsy with centrotemporal spikes | en | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core |
5348014013 | Self-limited epilepsy with centrotemporal spikes (disorder) | en | Fully specified name | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core |
5348015014 | Childhood epilepsy with centrotemporal spikes | en | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core |
5348016010 | Benign epilepsy of childhood with centro-temporal spikes | en | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core |
5348017018 | SeLECTS - self-limited epilepsy with centrotemporal spikes | en | Synonym (core metadata concept) | Active | Entire term case sensitive (core metadata concept) | SNOMED CT core |
5362250012 | A common type of self-limited focal epilepsy syndrome, which begins typically between four and ten years (peak is seven years; range three to twelve years). Seizures are focal, infrequent (most children have fewer than ten in lifetime), brief (typically less than two to three minutes) and occur mostly in sleep (eighty to ninety percent of children). Individuals may have frequent seizures over a few days or weeks and then several months before subsequent seizure. Focal seizures with characteristic frontoparietal opercular features and/or nocturnal bilateral tonic-clonic seizures are mandatory for diagnosis. Characteristic semiology includes somatosensory symptoms (unilateral numbness or paresthesia of the tongue, lips, gums and inner cheek), orofacial motor signs (unilateral tonic or clonic contractions), speech arrest (dysarthria or anarthria) with preserved understanding, and sialorrhea. Seizures may evolve rapidly to tonic-clonic activity of the ipsilateral upper limb, to an ipsilateral hemiclonic seizure, or to a focal to bilateral tonic-clonic seizure. Todd paresis may occur postictally. Seizures occurring during sleep are seen within one hour of falling asleep or one to two hours prior to awakening. Development and cognition are typically normal. Neurological examination is normal. The electroencephalogram (EEG) background activity is normal. EEG must show centrotemporal biphasic epileptiform discharges which are characteristically high-amplitude complexes (less than 200 microvolts, peak to trough) that activate in drowsiness and sleep. MRI is normal or has nonspecific findings. | en | Definition | Active | Entire term case sensitive (core metadata concept) | SNOMED CT core |
5362251011 | A common type of self-limited focal epilepsy syndrome, which begins typically between four and ten years (peak is seven years; range three to twelve years). Seizures are focal, infrequent (most children have fewer than ten in lifetime), brief (typically less than two to three minutes) and occur mostly in sleep (eighty to ninety percent of children). Individuals may have frequent seizures over a few days or weeks and then several months before subsequent seizure. Focal seizures with characteristic frontoparietal opercular features and/or nocturnal bilateral tonic-clonic seizures are mandatory for diagnosis. Characteristic semiology includes somatosensory symptoms (unilateral numbness or paraesthesia of the tongue, lips, gums and inner cheek), orofacial motor signs (unilateral tonic or clonic contractions), speech arrest (dysarthria or anarthria) with preserved understanding, and sialorrhoea. Seizures may evolve rapidly to tonic-clonic activity of the ipsilateral upper limb, to an ipsilateral hemiclonic seizure, or to a focal to bilateral tonic-clonic seizure. Todd paresis may occur postictally. Seizures occurring during sleep are seen within one hour of falling asleep or one to two hours prior to awakening. Development and cognition are typically normal. Neurological examination is normal. The electroencephalogram (EEG) background activity is normal. EEG must show centrotemporal biphasic epileptiform discharges which are characteristically high-amplitude complexes (less than 200 microvolts, peak to trough) that activate in drowsiness and sleep. MRI is normal or has nonspecific findings. | en | Definition | Active | Entire term case sensitive (core metadata concept) | SNOMED CT core |
73622018 | Benign Rolandic epilepsy | en | Synonym (core metadata concept) | Active | Only initial character case insensitive (core metadata concept) | SNOMED CT core |
781239015 | Benign Rolandic epilepsy (disorder) | en | Fully specified name | Active | Only initial character case insensitive (core metadata concept) | SNOMED CT core |
1230051017 | Centralopathic epilepsy | en | Synonym (core metadata concept) | Active | Only initial character case insensitive (core metadata concept) | SNOMED CT core |
1230051017 | Centralopathic epilepsy | en | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core |
1230052012 | Temporal-central focal epilepsy | en | Synonym (core metadata concept) | Active | Only initial character case insensitive (core metadata concept) | SNOMED CT core |
1230052012 | Temporal-central focal epilepsy | en | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core |
1230053019 | Centrotemporal epilepsy | en | Synonym (core metadata concept) | Active | Only initial character case insensitive (core metadata concept) | SNOMED CT core |
1230053019 | Centrotemporal epilepsy | en | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core |
5348013019 | Self-limited epilepsy with centrotemporal spikes | en | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core |
5348014013 | Self-limited epilepsy with centrotemporal spikes (disorder) | en | Fully specified name | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core |
5348015014 | Childhood epilepsy with centrotemporal spikes | en | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core |
5348016010 | Benign epilepsy of childhood with centro-temporal spikes | en | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core |
5348017018 | SeLECTS - self-limited epilepsy with centrotemporal spikes | en | Synonym (core metadata concept) | Active | Entire term case sensitive (core metadata concept) | SNOMED CT core |
5362250012 | A common type of self-limited focal epilepsy syndrome, which begins typically between four and ten years (peak is seven years; range three to twelve years). Seizures are focal, infrequent (most children have fewer than ten in lifetime), brief (typically less than two to three minutes) and occur mostly in sleep (eighty to ninety percent of children). Individuals may have frequent seizures over a few days or weeks and then several months before subsequent seizure. Focal seizures with characteristic frontoparietal opercular features and/or nocturnal bilateral tonic-clonic seizures are mandatory for diagnosis. Characteristic semiology includes somatosensory symptoms (unilateral numbness or paresthesia of the tongue, lips, gums and inner cheek), orofacial motor signs (unilateral tonic or clonic contractions), speech arrest (dysarthria or anarthria) with preserved understanding, and sialorrhea. Seizures may evolve rapidly to tonic-clonic activity of the ipsilateral upper limb, to an ipsilateral hemiclonic seizure, or to a focal to bilateral tonic-clonic seizure. Todd paresis may occur postictally. Seizures occurring during sleep are seen within one hour of falling asleep or one to two hours prior to awakening. Development and cognition are typically normal. Neurological examination is normal. The electroencephalogram (EEG) background activity is normal. EEG must show centrotemporal biphasic epileptiform discharges which are characteristically high-amplitude complexes (less than 200 microvolts, peak to trough) that activate in drowsiness and sleep. MRI is normal or has nonspecific findings. | en | Definition | Active | Entire term case sensitive (core metadata concept) | SNOMED CT core |
5362251011 | A common type of self-limited focal epilepsy syndrome, which begins typically between four and ten years (peak is seven years; range three to twelve years). Seizures are focal, infrequent (most children have fewer than ten in lifetime), brief (typically less than two to three minutes) and occur mostly in sleep (eighty to ninety percent of children). Individuals may have frequent seizures over a few days or weeks and then several months before subsequent seizure. Focal seizures with characteristic frontoparietal opercular features and/or nocturnal bilateral tonic-clonic seizures are mandatory for diagnosis. Characteristic semiology includes somatosensory symptoms (unilateral numbness or paraesthesia of the tongue, lips, gums and inner cheek), orofacial motor signs (unilateral tonic or clonic contractions), speech arrest (dysarthria or anarthria) with preserved understanding, and sialorrhoea. Seizures may evolve rapidly to tonic-clonic activity of the ipsilateral upper limb, to an ipsilateral hemiclonic seizure, or to a focal to bilateral tonic-clonic seizure. Todd paresis may occur postictally. Seizures occurring during sleep are seen within one hour of falling asleep or one to two hours prior to awakening. Development and cognition are typically normal. Neurological examination is normal. The electroencephalogram (EEG) background activity is normal. EEG must show centrotemporal biphasic epileptiform discharges which are characteristically high-amplitude complexes (less than 200 microvolts, peak to trough) that activate in drowsiness and sleep. MRI is normal or has nonspecific findings. | en | Definition | Active | Entire term case sensitive (core metadata concept) | SNOMED CT core |
3417071001000115 | Rolando-Epilepsie | de | Synonym (core metadata concept) | Active | Entire term case sensitive (core metadata concept) | SNOMED CT Switzerland NRC maintained Module |
408091000172110 | ERB - épilepsie rolandique bénigne | fr | Synonym (core metadata concept) | Active | Entire term case sensitive (core metadata concept) | SNOMED CT Switzerland NRC maintained Module |
620271000172114 | épilepsie rolandique bénigne | fr | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT Switzerland NRC maintained Module |
408091000172110 | ERB - épilepsie rolandique bénigne | fr | Synonym (core metadata concept) | Active | Entire term case sensitive (core metadata concept) | SNOMED CT Switzerland NRC maintained Module |
620271000172114 | épilepsie rolandique bénigne | fr | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT Switzerland NRC maintained Module |
3417071001000115 | Rolando-Epilepsie | de | Synonym (core metadata concept) | Active | Entire term case sensitive (core metadata concept) | SNOMED CT Switzerland NRC maintained Module |
Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values |
A common type of self-limited focal epilepsy syndrome, which begins typically between four and ten years (peak is seven years; range three to twelve years). Seizures are focal, infrequent (most children have fewer than ten in lifetime), brief (typically less than two to three minutes) and occur mostly in sleep (eighty to ninety percent of children). Individuals may have frequent seizures over a few days or weeks and then several months before subsequent seizure. Focal seizures with characteristic frontoparietal opercular features and/or nocturnal bilateral tonic-clonic seizures are mandatory for diagnosis. Characteristic semiology includes somatosensory symptoms (unilateral numbness or paresthesia of the tongue, lips, gums and inner cheek), orofacial motor signs (unilateral tonic or clonic contractions), speech arrest (dysarthria or anarthria) with preserved understanding, and sialorrhea. Seizures may evolve rapidly to tonic-clonic activity of the ipsilateral upper limb, to an ipsilateral hemiclonic seizure, or to a focal to bilateral tonic-clonic seizure. Todd paresis may occur postictally. Seizures occurring during sleep are seen within one hour of falling asleep or one to two hours prior to awakening. Development and cognition are typically normal. Neurological examination is normal. The electroencephalogram (EEG) background activity is normal. EEG must show centrotemporal biphasic epileptiform discharges which are characteristically high-amplitude complexes (less than 200 microvolts, peak to trough) that activate in drowsiness and sleep. MRI is normal or has nonspecific findings. | Is a | epilessia idiopatica correlata a localizzazione | false | Inferred relationship | Existential restriction modifier (core metadata concept) | ||
A common type of self-limited focal epilepsy syndrome, which begins typically between four and ten years (peak is seven years; range three to twelve years). Seizures are focal, infrequent (most children have fewer than ten in lifetime), brief (typically less than two to three minutes) and occur mostly in sleep (eighty to ninety percent of children). Individuals may have frequent seizures over a few days or weeks and then several months before subsequent seizure. Focal seizures with characteristic frontoparietal opercular features and/or nocturnal bilateral tonic-clonic seizures are mandatory for diagnosis. Characteristic semiology includes somatosensory symptoms (unilateral numbness or paresthesia of the tongue, lips, gums and inner cheek), orofacial motor signs (unilateral tonic or clonic contractions), speech arrest (dysarthria or anarthria) with preserved understanding, and sialorrhea. Seizures may evolve rapidly to tonic-clonic activity of the ipsilateral upper limb, to an ipsilateral hemiclonic seizure, or to a focal to bilateral tonic-clonic seizure. Todd paresis may occur postictally. Seizures occurring during sleep are seen within one hour of falling asleep or one to two hours prior to awakening. Development and cognition are typically normal. Neurological examination is normal. The electroencephalogram (EEG) background activity is normal. EEG must show centrotemporal biphasic epileptiform discharges which are characteristically high-amplitude complexes (less than 200 microvolts, peak to trough) that activate in drowsiness and sleep. MRI is normal or has nonspecific findings. | Finding site | The cerebrum is the regional structure of the brain, which is the adult equivalent of the forebrain or prosencephalon. It is constituted by the structural derivatives of the telencephalon and diencephalon including the cerebral hemispheres, epithalamus, thalamus, hypothalamus, lateral ventricles and third ventricle. This definition is harmonious with the Federation of Association of Anatomist Second Edition (2019) Part V Terminologia Anatomica. | false | Inferred relationship | Existential restriction modifier (core metadata concept) | 1 | |
A common type of self-limited focal epilepsy syndrome, which begins typically between four and ten years (peak is seven years; range three to twelve years). Seizures are focal, infrequent (most children have fewer than ten in lifetime), brief (typically less than two to three minutes) and occur mostly in sleep (eighty to ninety percent of children). Individuals may have frequent seizures over a few days or weeks and then several months before subsequent seizure. Focal seizures with characteristic frontoparietal opercular features and/or nocturnal bilateral tonic-clonic seizures are mandatory for diagnosis. Characteristic semiology includes somatosensory symptoms (unilateral numbness or paresthesia of the tongue, lips, gums and inner cheek), orofacial motor signs (unilateral tonic or clonic contractions), speech arrest (dysarthria or anarthria) with preserved understanding, and sialorrhea. Seizures may evolve rapidly to tonic-clonic activity of the ipsilateral upper limb, to an ipsilateral hemiclonic seizure, or to a focal to bilateral tonic-clonic seizure. Todd paresis may occur postictally. Seizures occurring during sleep are seen within one hour of falling asleep or one to two hours prior to awakening. Development and cognition are typically normal. Neurological examination is normal. The electroencephalogram (EEG) background activity is normal. EEG must show centrotemporal biphasic epileptiform discharges which are characteristically high-amplitude complexes (less than 200 microvolts, peak to trough) that activate in drowsiness and sleep. MRI is normal or has nonspecific findings. | Has definitional manifestation | Seizure | false | Inferred relationship | Existential restriction modifier (core metadata concept) | ||
A common type of self-limited focal epilepsy syndrome, which begins typically between four and ten years (peak is seven years; range three to twelve years). Seizures are focal, infrequent (most children have fewer than ten in lifetime), brief (typically less than two to three minutes) and occur mostly in sleep (eighty to ninety percent of children). Individuals may have frequent seizures over a few days or weeks and then several months before subsequent seizure. Focal seizures with characteristic frontoparietal opercular features and/or nocturnal bilateral tonic-clonic seizures are mandatory for diagnosis. Characteristic semiology includes somatosensory symptoms (unilateral numbness or paresthesia of the tongue, lips, gums and inner cheek), orofacial motor signs (unilateral tonic or clonic contractions), speech arrest (dysarthria or anarthria) with preserved understanding, and sialorrhea. Seizures may evolve rapidly to tonic-clonic activity of the ipsilateral upper limb, to an ipsilateral hemiclonic seizure, or to a focal to bilateral tonic-clonic seizure. Todd paresis may occur postictally. Seizures occurring during sleep are seen within one hour of falling asleep or one to two hours prior to awakening. Development and cognition are typically normal. Neurological examination is normal. The electroencephalogram (EEG) background activity is normal. EEG must show centrotemporal biphasic epileptiform discharges which are characteristically high-amplitude complexes (less than 200 microvolts, peak to trough) that activate in drowsiness and sleep. MRI is normal or has nonspecific findings. | Is a | Self-limited focal epilepsy (disorder) | true | Inferred relationship | Existential restriction modifier (core metadata concept) | ||
A common type of self-limited focal epilepsy syndrome, which begins typically between four and ten years (peak is seven years; range three to twelve years). Seizures are focal, infrequent (most children have fewer than ten in lifetime), brief (typically less than two to three minutes) and occur mostly in sleep (eighty to ninety percent of children). Individuals may have frequent seizures over a few days or weeks and then several months before subsequent seizure. Focal seizures with characteristic frontoparietal opercular features and/or nocturnal bilateral tonic-clonic seizures are mandatory for diagnosis. Characteristic semiology includes somatosensory symptoms (unilateral numbness or paresthesia of the tongue, lips, gums and inner cheek), orofacial motor signs (unilateral tonic or clonic contractions), speech arrest (dysarthria or anarthria) with preserved understanding, and sialorrhea. Seizures may evolve rapidly to tonic-clonic activity of the ipsilateral upper limb, to an ipsilateral hemiclonic seizure, or to a focal to bilateral tonic-clonic seizure. Todd paresis may occur postictally. Seizures occurring during sleep are seen within one hour of falling asleep or one to two hours prior to awakening. Development and cognition are typically normal. Neurological examination is normal. The electroencephalogram (EEG) background activity is normal. EEG must show centrotemporal biphasic epileptiform discharges which are characteristically high-amplitude complexes (less than 200 microvolts, peak to trough) that activate in drowsiness and sleep. MRI is normal or has nonspecific findings. | Finding site | Brain structure | true | Inferred relationship | Existential restriction modifier (core metadata concept) | 1 |
Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group |
Status epilepticus in benign Rolandic epilepsy | Is a | False | A common type of self-limited focal epilepsy syndrome, which begins typically between four and ten years (peak is seven years; range three to twelve years). Seizures are focal, infrequent (most children have fewer than ten in lifetime), brief (typically less than two to three minutes) and occur mostly in sleep (eighty to ninety percent of children). Individuals may have frequent seizures over a few days or weeks and then several months before subsequent seizure. Focal seizures with characteristic frontoparietal opercular features and/or nocturnal bilateral tonic-clonic seizures are mandatory for diagnosis. Characteristic semiology includes somatosensory symptoms (unilateral numbness or paresthesia of the tongue, lips, gums and inner cheek), orofacial motor signs (unilateral tonic or clonic contractions), speech arrest (dysarthria or anarthria) with preserved understanding, and sialorrhea. Seizures may evolve rapidly to tonic-clonic activity of the ipsilateral upper limb, to an ipsilateral hemiclonic seizure, or to a focal to bilateral tonic-clonic seizure. Todd paresis may occur postictally. Seizures occurring during sleep are seen within one hour of falling asleep or one to two hours prior to awakening. Development and cognition are typically normal. Neurological examination is normal. The electroencephalogram (EEG) background activity is normal. EEG must show centrotemporal biphasic epileptiform discharges which are characteristically high-amplitude complexes (less than 200 microvolts, peak to trough) that activate in drowsiness and sleep. MRI is normal or has nonspecific findings. | Inferred relationship | Existential restriction modifier (core metadata concept) | |
Rolandic epilepsy, speech dyspraxia syndrome | Is a | True | A common type of self-limited focal epilepsy syndrome, which begins typically between four and ten years (peak is seven years; range three to twelve years). Seizures are focal, infrequent (most children have fewer than ten in lifetime), brief (typically less than two to three minutes) and occur mostly in sleep (eighty to ninety percent of children). Individuals may have frequent seizures over a few days or weeks and then several months before subsequent seizure. Focal seizures with characteristic frontoparietal opercular features and/or nocturnal bilateral tonic-clonic seizures are mandatory for diagnosis. Characteristic semiology includes somatosensory symptoms (unilateral numbness or paresthesia of the tongue, lips, gums and inner cheek), orofacial motor signs (unilateral tonic or clonic contractions), speech arrest (dysarthria or anarthria) with preserved understanding, and sialorrhea. Seizures may evolve rapidly to tonic-clonic activity of the ipsilateral upper limb, to an ipsilateral hemiclonic seizure, or to a focal to bilateral tonic-clonic seizure. Todd paresis may occur postictally. Seizures occurring during sleep are seen within one hour of falling asleep or one to two hours prior to awakening. Development and cognition are typically normal. Neurological examination is normal. The electroencephalogram (EEG) background activity is normal. EEG must show centrotemporal biphasic epileptiform discharges which are characteristically high-amplitude complexes (less than 200 microvolts, peak to trough) that activate in drowsiness and sleep. MRI is normal or has nonspecific findings. | Inferred relationship | Existential restriction modifier (core metadata concept) | |
épilepsie infantile bénigne réfractaire avec pointes centrotemporales | Is a | False | A common type of self-limited focal epilepsy syndrome, which begins typically between four and ten years (peak is seven years; range three to twelve years). Seizures are focal, infrequent (most children have fewer than ten in lifetime), brief (typically less than two to three minutes) and occur mostly in sleep (eighty to ninety percent of children). Individuals may have frequent seizures over a few days or weeks and then several months before subsequent seizure. Focal seizures with characteristic frontoparietal opercular features and/or nocturnal bilateral tonic-clonic seizures are mandatory for diagnosis. Characteristic semiology includes somatosensory symptoms (unilateral numbness or paresthesia of the tongue, lips, gums and inner cheek), orofacial motor signs (unilateral tonic or clonic contractions), speech arrest (dysarthria or anarthria) with preserved understanding, and sialorrhea. Seizures may evolve rapidly to tonic-clonic activity of the ipsilateral upper limb, to an ipsilateral hemiclonic seizure, or to a focal to bilateral tonic-clonic seizure. Todd paresis may occur postictally. Seizures occurring during sleep are seen within one hour of falling asleep or one to two hours prior to awakening. Development and cognition are typically normal. Neurological examination is normal. The electroencephalogram (EEG) background activity is normal. EEG must show centrotemporal biphasic epileptiform discharges which are characteristically high-amplitude complexes (less than 200 microvolts, peak to trough) that activate in drowsiness and sleep. MRI is normal or has nonspecific findings. | Inferred relationship | Existential restriction modifier (core metadata concept) | |
épilepsie infantile bénigne non réfractaire avec pointes centrotemporales | Is a | False | A common type of self-limited focal epilepsy syndrome, which begins typically between four and ten years (peak is seven years; range three to twelve years). Seizures are focal, infrequent (most children have fewer than ten in lifetime), brief (typically less than two to three minutes) and occur mostly in sleep (eighty to ninety percent of children). Individuals may have frequent seizures over a few days or weeks and then several months before subsequent seizure. Focal seizures with characteristic frontoparietal opercular features and/or nocturnal bilateral tonic-clonic seizures are mandatory for diagnosis. Characteristic semiology includes somatosensory symptoms (unilateral numbness or paresthesia of the tongue, lips, gums and inner cheek), orofacial motor signs (unilateral tonic or clonic contractions), speech arrest (dysarthria or anarthria) with preserved understanding, and sialorrhea. Seizures may evolve rapidly to tonic-clonic activity of the ipsilateral upper limb, to an ipsilateral hemiclonic seizure, or to a focal to bilateral tonic-clonic seizure. Todd paresis may occur postictally. Seizures occurring during sleep are seen within one hour of falling asleep or one to two hours prior to awakening. Development and cognition are typically normal. Neurological examination is normal. The electroencephalogram (EEG) background activity is normal. EEG must show centrotemporal biphasic epileptiform discharges which are characteristically high-amplitude complexes (less than 200 microvolts, peak to trough) that activate in drowsiness and sleep. MRI is normal or has nonspecific findings. | Inferred relationship | Existential restriction modifier (core metadata concept) | |
Rolandic epilepsy, paroxysmal exercise-induced dystonia, writer's cramp syndrome (disorder) | Is a | True | A common type of self-limited focal epilepsy syndrome, which begins typically between four and ten years (peak is seven years; range three to twelve years). Seizures are focal, infrequent (most children have fewer than ten in lifetime), brief (typically less than two to three minutes) and occur mostly in sleep (eighty to ninety percent of children). Individuals may have frequent seizures over a few days or weeks and then several months before subsequent seizure. Focal seizures with characteristic frontoparietal opercular features and/or nocturnal bilateral tonic-clonic seizures are mandatory for diagnosis. Characteristic semiology includes somatosensory symptoms (unilateral numbness or paresthesia of the tongue, lips, gums and inner cheek), orofacial motor signs (unilateral tonic or clonic contractions), speech arrest (dysarthria or anarthria) with preserved understanding, and sialorrhea. Seizures may evolve rapidly to tonic-clonic activity of the ipsilateral upper limb, to an ipsilateral hemiclonic seizure, or to a focal to bilateral tonic-clonic seizure. Todd paresis may occur postictally. Seizures occurring during sleep are seen within one hour of falling asleep or one to two hours prior to awakening. Development and cognition are typically normal. Neurological examination is normal. The electroencephalogram (EEG) background activity is normal. EEG must show centrotemporal biphasic epileptiform discharges which are characteristically high-amplitude complexes (less than 200 microvolts, peak to trough) that activate in drowsiness and sleep. MRI is normal or has nonspecific findings. | Inferred relationship | Existential restriction modifier (core metadata concept) |
This concept is not in any reference sets