Retrospective review of 290 small carotid cave aneurysms over 17 years

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  • 1 Departments of Neurological Surgery and
  • 2 Radiology, Northwestern Memorial Hospital, Feinberg School of Medicine of Northwestern University, Chicago, Illinois
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OBJECTIVE

The carotid cave is a unique intradural region located along the medial aspect of the internal carotid artery. Small carotid cave aneurysms confined within this space are bound by the carotid sulcus of the sphenoid bone and are thought to have a low risk of rupture or growth. However, there is a lack of data on the natural history of this subset of aneurysms.

METHODS

The authors present a retrospective case series of 290 small (≤ 4 mm) carotid cave aneurysms evaluated and managed at their institution between January 2000 and June 2017.

RESULTS

No patient presented with a subarachnoid hemorrhage attributable to a carotid cave aneurysm, and there were no instances of aneurysm rupture or growth during 911.0 aneurysm-years of clinical follow-up or 726.3 aneurysm-years of imaging follow-up, respectively.

CONCLUSIONS

This series demonstrates the benign nature of small carotid cave aneurysms.

ABBREVIATIONS AVM = arteriovenous malformation; ICA = internal carotid artery.

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Contributor Notes

Correspondence Matthew B. Potts: Northwestern Memorial Hospital, Feinberg School of Medicine of Northwestern University, Chicago, IL. matthew.potts@northwestern.edu.

INCLUDE WHEN CITING Published online October 18, 2019; DOI: 10.3171/2019.7.JNS191471.

Disclosures The authors report no conflict of interest concerning the materials or methods used in this study or the findings specified in this paper.

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