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Related Experiment Videos

Amaurosis fugax

J E Mungas, W H Baker

    Stroke
    |March 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    All patients experiencing amaurosis fugax (temporary vision loss) need carotid angiography to check for operable carotid stenosis. Clinical signs like bruits or Doppler results do not reliably predict operable lesions.

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    Area of Science:

    • Neurology
    • Vascular Surgery
    • Ophthalmology

    Background:

    • Amaurosis fugax is a transient visual loss often caused by carotid artery disease.
    • Indications for carotid angiography in these patients require refinement.

    Purpose of the Study:

    • To refine indications for carotid angiography in patients with amaurosis fugax.
    • To determine predictors of operable carotid lesions in this patient group.

    Main Methods:

    • Retrospective review of 112 patients with amaurosis fugax.
    • Analysis of clinical findings, ophthalmologic, and cerebrovascular Doppler examinations.
    • Correlation with surgical findings of carotid endarterectomy.

    Main Results:

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  • Eighty patients underwent carotid endarterectomy.
  • Thirty-four patients with ipsilateral hemispheric transient ischemic attacks and amaurosis fugax had operable lesions.
  • Carotid bruit, ophthalmologic, or Doppler findings did not reliably predict operable lesions.

    • Conclusions:

    • Carotid angiography is required for all patients with amaurosis fugax evaluated for operable carotid stenosis.
    • Clinical examination findings are insufficient to rule out significant carotid artery disease.