Transient global amnesia (TGA): differential diagnosis

Written and reviewed by Dr Ibrahim Imam, Consultant Neurologist. Last reviewed .

Transient global amnesia (TGA): differential diagnosis. Transient epileptic amnesia (TEA). Fully referenced neurology checklist.

Neurological differentials

  • Transient epileptic amnesia (TEA)
  • Transient ischaemic attacks (TIAs)
  • Seizures
  • Migraine
  • Concussion
  • Traumatic brain injury (TBI)
  • Cerebral hypoxia e.g. with aortic dissection
  • Encephalitis
  • Wernicke's encephalopathy

Psychiatric

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Systemic

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Drugs

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References

  1. Hodges JR, Warlow CP. The aetiology of transient global amnesia: a case control study of 114 cases with productive follow up. Brain 1990; 113:639-657.
  2. Kirshner HS. Transient global amnesia: a brief review and update. Curr Neurol Neurosci Rep 2011; 11:578-582.
  3. Spiegel DR, Smith J, Wade RR, et al. Transient global amnesia: current perspectives. Neuropsychiatr Dis Treat 2017; 13:2691-2703.
  4. Sheikh Hassan M, Osman Sidow N, Adam Mohamed N. Transient global amnesia: uncommon diagnosis of exclusion. Clin Case Rep 2022; 10:e6533.

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