transient global amnesia

Etiology

• associated with triggers that cause transient intracranial venous hypertension
  • Valsalva maneuver
  • sexual activity
  • emotional shock
• risk factors for recurrence
  • earlier age of 1st episode
  • history of migraine or family history of migraine

Epidemiology

• middle age or older adults

Clinical manifestations

• antegrade amnesia, profound memory loss & disorientation
• duration 4-6 hours

Radiology

• neuroimaging, usually are normal

Complications

• often no sequelae occur

More general terms

• amnesia