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Site-Specific Relationship Between Intracranial Aneurysm and Aortic Aneurysm

Yong-Won Shin1, Keun-Hwa Jung2, Jangsup Moon1

  • 1From the Department of Neurology, Seoul National University Hospital, Seoul, South Korea (Y.-W.S., K.-H.J., J.M., S.-T.L., S.K.L., K.C.); and Department of Neurology, The Armed Forces Capital Hospital, Sungnam, Gyeunggido, South Korea (J.-K.R.).

Stroke
|May 21, 2015
PubMed

Insights

Intracranial aneurysms (IAs) and aortic aneurysms (AAs) show location-specific relationships. Anterior circulation IAs are common with ascending AAs, while internal carotid artery IAs are more frequent with infrarenal AAs.

Area of Science:

  • Vascular Surgery
  • Neurology
  • Cardiology

Background:

  • Aortic pathology, including bicuspid aortic valve and coarctation of the aorta, is linked to intracranial aneurysms (IAs).
  • Previous studies have not fully explored the heterogeneity of IA locations in relation to aortic aneurysm (AA) subtypes.

Purpose of the Study:

  • To investigate a potential location-specific relationship between intracranial aneurysms (IAs) and aortic aneurysms (AAs).

Main Methods:

  • Retrospective analysis of 71 patients with 97 IAs and concurrent AAs from 2005-2014.
  • Categorization of IAs by location (internal carotid artery, anterior circulation, posterior arteries) and AAs by type (ascending, descending, infrarenal, multiple).

Main Results:

  • Significant differences in the distribution of anterior circulation-IAs and internal carotid artery-IAs were observed across AA groups (P=0.001 and P=0.01).
  • Anterior circulation-IAs were most common with ascending AAs, whereas internal carotid artery-IAs were most frequent with infrarenal AAs.
  • Posterior artery IA data was insufficient for analysis.

Conclusions:

  • The distinct distribution patterns of IAs in relation to AA location suggest shared, site-specific pathomechanisms.
  • This finding highlights the importance of considering aneurysm location when evaluating the relationship between intracranial and aortic aneurysms.
Abstract

Keywords:
aortic diseasesintracranial aneurysm

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