Journal of Stroke & Cerebrovascular Diseases
Volume 17, Issue 1 , Pages 1-4, January 2008

Common Carotid Artery Stenosis and Amaurosis Fugax

  • Kastumi Hoya, MD, PhD

      Affiliations

    • Corresponding Author InformationAddress correspondence to Kastumi Hoya, MD, PhD, Department of Neurosurgery, Dokkyo Medical University, Koshigaya Hospital, 2-1-50, Minami-Koshigaya, Koshigaya, Saitama 343-8555 Japan.
    • ,
  • Eiharu Morikawa, MD, PhD
    • ,
  • Akira Tamura, MD, PhD
    • ,
  • Isamu Saito, MD, PhD

Department of Neurosurgery, Fuji Brain Institute and Hospital, Fujinomiya, Shizuoka, Japan

Received 7 May 2007; received in revised form 22 August 2007; accepted 30 August 2007.

Background

Clinical characteristics of common carotid artery (CCA) stenosis have been reported relatively rarely, compared with those of internal carotid artery (ICA) stenosis. The current retrospective study aimed to clarify the symptomatology of CCA stenosis.

Methods

Summarized records of patients admitted were reviewed to identify patients with CCA stenosis or extracranial ICA stenosis. Clinical histories and neurologic symptoms were identified and analyzed.

Results

CCA stenosis was present in 12 patients (symptomatic, n = 8; asymptomatic, n = 4). Among symptomatic patients, 4 (50%) had amaurosis fugax. Among 137 patients with symptomatic extracranial ICA stenosis, amaurosis fugax occurred in 9 patients (6.6%).

Conclusions

Frequency of amaurosis fugax was significantly higher in CCA stenosis than in ICA stenosis. Patients with CCA stenosis may be susceptible to transient hemodynamic insufficiency of the retina as a result of simultaneous reductions in blood supplies from both the external carotid artery and the ICA.

Key Words: Common carotid artery, stenosis, amaurosis fugax

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PII: S1052-3057(07)00140-1

doi:10.1016/j.jstrokecerebrovasdis.2007.08.003

Journal of Stroke & Cerebrovascular Diseases
Volume 17, Issue 1 , Pages 1-4, January 2008

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