Table 2 Common causes for provoked and unprovoked seizures in the elderly [9]
Causes of provoked seizures | Relative proportion (%) |
|---|---|
Acute stroke | 50% |
Metabolic derangement | 6–30% |
Secondary to medications/alcohol | 10% |
Others (intracranial hemorrhage, intracranial infection, and so on) | 5–20% |
Causes of unprovoked seizures | Relative proportion (%) |
Cerebrovascular disease | 30–50% |
Dementia | 9–17% |
Others (previous head injury or infection, brain tumor, and so on) | 5–15% |
Unknown | 30–50% |