title: Safety of coil occlusion of the parent artery for endovascular treatment of anterior communicating artery aneurysm.
abstract: Many studies lay emphasis on the clinical importance of perforating branches of the anterior communicating artery (ACoA) and report that vascular damage of the perforators from ACoA aneurysm during surgery cause subsequent postoperative amnesia. The purpose of our study was to analyze the safety of parent artery occlusion for ACoA aneurysm coiling based on the anatomical features of the ACoA complex in 13 patients with 13 ACoA aneurysms. All patients underwent coiling of the aneurysm sac and ACoA. Aneurysm characteristics including size, dome-to-neck ratio, anterior/posterior orientation of the aneurysm dome with respect to the axis of the pericallosal artery, location of the aneurysm neck with respect to the A1-A2 segment of the anterior cerebral artery (ACA) or the ACoA, and the presence of hypoplasia/aplasia of A1 segment were assessed. The aneurysm neck was located directly on the ACoA in five aneurysms (38%), whereas eight (62%) had the neck located at the A1-A2 junction. Of the five patients whose aneurysm neck was located in the ACoA, four patients had infarcts in the basal forebrain. Three of the patients complained of amnesia. None of the aneurysms with the neck located at the A1-A2 junction were associated with infarction. There has been little evidence thus far that parent vessel occlusion of ACoA aneurysms is a safe method for the treatment of aneurysms. Patients with the aneurysm neck located at the A1-A2 junction and without A1 aplasia, who were treated with aneurysm sac and ACoA embolism, were potentially safe.
authors.affiliation: Department of Radiology, Busan-Ulsan Regional Cardio-Cerebrovascular Diseases Center, Dong-A University Hospital, Republic of Korea.
authors.forename: Sanghyeon
authors.initials: S
authors.lastname: Kim
authors.affiliation: Department of Radiology, Busan-Ulsan Regional Cardio-Cerebrovascular Diseases Center, Dong-A University Hospital, Republic of Korea myongjinkang1@gmail.com.
authors.forename: Myongjin
authors.initials: M
authors.lastname: Kang
authors.affiliation: Department of Neurosurgery, Busan-Ulsan Regional Cardio-Cerebrovascular Diseases Center, Dong-A University Hospital, Republic of Korea.
authors.forename: Jae-Hyung
authors.initials: JH
authors.lastname: Choi
authors.affiliation: Department of Radiology, Dong-A University Hospital, Republic of Korea.
authors.forename: Dong Won
authors.initials: DW
authors.lastname: Kim
mesh_terms: D000328:Adult; D000369:Aged, 80 and over; D002533:Cerebral Angiography; D057510:Endovascular Procedures / Q000009:adverse effects*; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging / Q000601:surgery*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome
keywords: Aneurysm; anterior communicating artery; coiling