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Cerebral infarct in apparent transient ischemic attack.

J Bogousslavsky, F Regli

    Neurology
    |October 1, 1985
    PubMed
    Summary
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    Transient ischemic attacks (TIAs) lasting over 45-60 minutes often indicate cerebral infarction with transient signs (CITS), not true TIAs. Longer attack duration significantly increases stroke risk in TIA patients.

    Area of Science:

    • Neurology
    • Radiology
    • Vascular Neurology

    Background:

    • Transient ischemic attacks (TIAs) are critical warning signs for stroke.
    • Distinguishing between true TIAs and cerebral infarction with transient signs (CITS) is crucial for patient management.

    Purpose of the Study:

    • To investigate the relationship between TIA characteristics and the presence of cerebral infarction.
    • To differentiate between true TIAs and CITS based on attack duration.

    Main Methods:

    • Computed tomography (CT) scans were performed on 57 patients 3-28 days after their last carotid territory TIA.
    • Clinical data including attack duration, number of attacks, and symptoms were analyzed.

    Main Results:

    • Cerebral infarction was detected in 28% of patients.

    Related Experiment Videos

  • Infarction risk increased with longer mean attack duration, longest attack duration, and total symptom duration.
  • Attacks exceeding 45-60 minutes had an >80% risk of infarction, suggesting CITS.

    • Conclusions:

    • TIAs can be categorized into true TIAs (shorter duration) and CITS (longer duration).
    • Prolonged TIA duration is a strong predictor of cerebral infarction.
    • CT imaging is valuable for identifying infarcts in patients with TIA symptoms.