Parameters for acute symptomatic seizures proposed by the International League against Epilepsy
| Provoking insult | Time-frame |
|---|---|
| Stroke/hypoxia | <1 week |
| Traumatic brain injury without subdural haematoma | <1 week |
| Traumatic brain injury with subdural haematoma | Up to 1 month |
| Intracranial surgery | <1 week |
| Arteriovenous malformation at time of haemorrhage | <1 week |
| CNS infection | Until laboratory and clinical signs of infection have resolved |
| Multiple sclerosis | <1 week (of relapse) |
| Alcohol withdrawal | 7–48 hours from last alcoholic drink |
| Serum glucose (within 24 hours) | <36 mg/dL (2 mM) or >450 mg/dL (25 mM) and ketoacidosis |
| Serum sodium (within 24 hours) | <115 mg/dL (<5 mM) |
| Serum calcium (within 24 hours) | <5 mg/dL (<1.2 mM) |
| Serum magnesium (within 24 hours) | <0.8 mg/dL (<0.3 mM) |
| Urea nitrogen (within 24 hours) | >100 mg/dL (>35.7 mM) |
| Creatinine (within 24 hours) | >10 mg/dL (>884 uM) |
Adapted with permission from Beghi et al, 2010.14 CNS = central nervous system