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Blood blister-like aneurysms at nonbranching sites of the internal carotid artery.

Authors
Sim, SY; Shin, YS; Cho, KG; Kim, SY; Kim, SH; Ahn, YH; Yoon, SH; Cho, KH
Citation
Journal of neurosurgery, 105(3):400-405, 2006
Journal Title
Journal of neurosurgery
ISSN
0022-30851933-0693
Abstract
OBJECT: The clinical features of blood blister-like aneurysms (BBAs) that arise at nonbranching sites of the internal carotid artery (ICA) differ from those of saccular aneurysms. In this study, the authors attempt to describe optimal treatments for BBAs, which have yet to be clearly established. METHODS: Ten of 483 patients with aneurysmal subarachnoid hemorrhage who had been seen at the authors' institution between March 2001 and June 2005 had intraoperatively confirmed BBAs at nonbranching sites of the ICA. All ten patients were women between the ages of 37 and 64 years (mean age 49.3 years); five had a history of hypertension. The BBAs were localized to the right side of the ICA in seven cases. All patients were successfully treated; clipping was undertaken in six, clipping combined with wrapping in three, and trapping in one. These methods were used in conjunction with various other surgical techniques such as brain relaxation by draining cerebrospinal fluid, anterior clinoidectomy, exposing the cervical ICA, gentle subpial dissection (for aneurysms that adhered to the frontal lobe), complete trapping of the ICA before clipping, and protecting the brain. Clip slippage occurred at the end of dural closing in two cases; the aneurysm was completely obliterated using multiple clips combined with ICA stenosis in one of these cases and ICA trapping with good collateral flow in the other. An excellent clinical outcome was achieved in eight patients, whereas two patients were disabled from massive vasospasm. The authors retrospectively reviewed radiological and surgical data in all cases to determine which treatment methods produced a favorable outcome. CONCLUSIONS: Blood blister-like aneurysms located at nonbranching sites of the ICA are difficult to treat. Preoperative awareness and careful consideration of these lesions during surgery can prevent poor clinical outcomes.
MeSH terms
AdultAgedCarotid Artery Diseases/radiographyCarotid Artery Diseases/surgery*Carotid Artery, Internal*/surgeryCerebral Hemorrhage/surgeryFemaleHumansMiddle AgedRetrospective Studies
DOI
10.3171/jns.2006.105.3.400
PMID
16961134
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Neurosurgery
Journal Papers > School of Medicine / Graduate School of Medicine > Radiology
AJOU Authors
신용삼조경기김선용김세혁안영환윤수한조기홍
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