Transient Global Amnesia - Clinical Features
- Abrupt onset in middle to old age
- No impairment of consciousness or other cognitive functions besides memory
- Dense anterograde amnesia
- Rare recurrence (rate approximately 3% per year)
- Attacks last for 4-10 hours
- Often triggered by acute emotional or physical stress
- Repetitive questioning; usually related to self-orientation e.g. "where am I?"
- Sometimes non-specific symptoms of nausea and headaches present