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Coexistence of internal carotid artery stenosis with intracranial aneurysm

Yongping Liang1, Jun Wang, Baomin Li

  • 1Department of Neurosurgery, Chinese PLA General Hospital, Beijing, China.

International Journal of Stroke : Official Journal of the International Stroke Society
|August 29, 2013
PubMed

Insights

Cerebral aneurysms show a significant correlation with internal carotid artery stenosis, even if uncommon. Further imaging like digital subtraction angiography is recommended if stenosis is detected.

Area of Science:

  • Vascular Neurology
  • Cerebrovascular Diseases
  • Medical Imaging

Background:

  • Hemodynamic and rheological alterations in carotid arteries are hypothesized to cause cerebral aneurysms.
  • Internal carotid artery stenosis is a potential risk factor for cerebral aneurysm formation.

Purpose of the Study:

  • To collate existing data on the co-occurrence of cerebral aneurysms and internal carotid artery stenosis.
  • To investigate the epidemiological relationship between these two vascular conditions.

Main Methods:

  • Systematic PubMed search from 1990 to present.
  • Inclusion of studies reporting coexistence of internal carotid artery stenosis and intracranial aneurysm detected by any imaging modality.
  • Spearman's correlation analysis to assess the significance of coexistence.

Main Results:

  • The exact frequency of concurrent extracranial internal carotid artery stenosis and unruptured cerebral artery aneurysm is unknown, estimated around 4%.
  • Significant correlation found between intracranial aneurysms and carotid artery stenosis.
  • Lack of detailed analyses noted as a major limitation.

Conclusions:

  • A significant correlation exists between intracranial aneurysms and carotid artery stenosis.
  • Recommend digital subtraction angiography for aneurysm detection if carotid stenosis is identified via imaging (e.g., carotid ultrasonography).
  • Early detection and characterization of aneurysms are crucial in patients with carotid stenosis.
Abstract

Keywords:
carotid artery stenosisco-occurrenceintracranial aneurysmmetabolic syndrometandem pathology

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