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Transient global amnesia and stroke.

J Bogousslavsky1, F Regli

  • 1Service de Neurologie, Centre Hospitalier Universitaire Vaudois, Lausanne, Suisse.

European Neurology
|January 1, 1988
PubMed
Summary
This summary is machine-generated.

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Transient global amnesia can be linked to stroke, affecting areas like the temporal lobe, lentiform nucleus, or thalamus. However, this association does not predict future cerebrovascular events.

Area of Science:

  • Neurology
  • Neuroimaging
  • Cerebrovascular Diseases

Background:

  • Transient global amnesia (TGA) is a distinct neurological condition characterized by sudden, temporary memory loss.
  • The underlying pathophysiology of TGA remains incompletely understood, with various etiological factors proposed.

Observation:

  • This study examined four patients with isolated TGA who presented with neuroimaging evidence of acute cerebral lesions.
  • Computed tomography (CT) revealed cerebral infarct in three patients and cerebral hemorrhage in one patient.
  • Lesions were located in the medial temporal lobe (two patients), left lentiform nucleus (one patient), and left thalamus (one patient).

Findings:

  • The neuroimaging findings suggest a potential association between TGA and stroke (infarction or hemorrhage).

Related Experiment Videos

  • The observed lesion locations indicate that TGA does not have a specific localizing value within temporodiencephalic structures.
  • Follow-up data over 1 to 5 years showed no subsequent cerebrovascular events in these patients.

    • Implications:

    • TGA may, in some instances, be a manifestation of an acute cerebrovascular event.
    • The findings challenge the notion of a single, specific anatomical correlate for TGA.
    • TGA associated with detectable infarction or hemorrhage appears to be a low-risk indicator for future stroke events.