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Endovascular treatment for aneurysms of the posterior cerebral artery : 12 years' experience with 21 cases

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Title: Endovascular treatment for aneurysms of the posterior cerebral artery : 12 years' experience with 21 cases
Authors: Kashiwazaki, Daina Browse this author
Ushikoshi, Satoshi Browse this author
Asano, Takeshi Browse this author
Osanai, Toshiya Browse this author
Kuroda, Satoshi Browse this author →KAKEN DB
Houkin, Kiyohiro Browse this author →KAKEN DB
Keywords: Aneurysm
Endovascular treatment
Posterior cerebral artery
Parent artery occlusion
Issue Date: Nov-2011
Publisher: Springer Vienna
Journal Title: Acta Neurochirurgica
Volume: 153
Issue: 11
Start Page: 2151
End Page: 2158
Publisher DOI: 10.1007/s00701-011-1111-5
PMID: 21805284
Abstract: Background and Purpose: To discuss and summarize the strategies and complications of endovascular embolization for aneurysms of the posterior cerebral artery (PCA). Methods: Data of patients with PCA aneurysms treated by an endovascular procedure were analyzed retrospectively (n = 21). Twenty patients with aneurysms were treated by detachable coil embolization, and 1 patient was treated with n-butyl cyanoacrylate. Of the 21 aneurysm embolization cases, 9 were treated by parent artery occlusion (PAO), and 12 were treated by selective occlusion of the aneurysm (SOA). Results: All 12 aneurysms treated by SOA showed complete occlusion. Two aneurysms became recanalized 6 months after the first embolization and were then re-embolized; complete healing was observed on follow-up angiography. All patients showed acceptable outcomes without any procedural complications, except 1 patient who died 2 days after treatment. PAO resulted in 100% occlusion of all aneurysms. Cerebral infarction was noted in most patients (78%). However, the area of infarction was small. Permanent neurological deficit was observed in 2 patients (22%), but their condition was not critical. Conclusions: Aneurysm embolization with SOA is well indicated for saccular aneurysms with well-defined necks, whereas PAO carries a risk of ischemic complications. Although the PCA is rich in collateral circulation, ischemic complications were noted in most patients after PAO, and it was difficult to predict occurrence of these complications. However, the area of cerebral infarction tended to be small, and the neurological deficits observed were not critical.
Rights: The original publication is available at
Type: article (author version)
Appears in Collections:医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 宝金 清博

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