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Aneurysms of the Proximal (A1) Segment of the Anterior Cerebral Artery: A Clinical Analysis of 31 Cases

DC Field Value Language
dc.contributor.authorKim, MK-
dc.contributor.authorLim, YC-
dc.date.accessioned2022-01-14T05:18:42Z-
dc.date.available2022-01-14T05:18:42Z-
dc.date.issued2019-
dc.identifier.issn1878-8750-
dc.identifier.urihttp://repository.ajou.ac.kr/handle/201003/20074-
dc.description.abstractOBJECTIVE: This study aimed to investigate the characteristics of A1 aneurysms according to their locations and to compare their imaging appearances so as to identify factors associated with their rupture.
METHODS: We retrospectively reviewed the medical records of 31 patients harboring 32 A1 aneurysms diagnosed and treated between March 2009 and September 2018 at our institute.
RESULTS: Thirteen (41.9%) of the patients had vascular abnormalities, and multiple aneurysms were found in 13 (41.9%) patients. A total of 16 (53.3%) aneurysms were located on the proximal A1 segment, whereas the middle segments were affected in 7 (23.3%) and the distal segments in 7 (23.3%). Altogether, 93.8% of proximal A1 aneurysms projected posteriorly, 85.7% of middle aneurysms projected superiorly, and 85.7% of distal aneurysms projected inferiorly (P = 0.000). Four (33.3%) of the 12 total ruptured aneurysms were located on the distal A1 segment. Nine (69.2%) ruptured aneurysms were elongated or irregular in shape (P = 0.004). The aspect and height-width ratios of the ruptured aneurysms were higher than those of the unruptured aneurysms (P = 0.001, P = 0.018, respectively).
CONCLUSIONS: Most A1 aneurysms showed a directional predilection according to the location of the A1 segment. Additionally, A1 aneurysms with elongated or irregular shapes, high aspect or height-width ratios, and distal locations of the A1 segment showed high risks of rupture. Therefore, a thorough assessment of the characteristics of A1 aneurysms can enhance the selection of proper treatment strategies.
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dc.subject.MESHAdult-
dc.subject.MESHAged-
dc.subject.MESHAged, 80 and over-
dc.subject.MESHAneurysm, Ruptured-
dc.subject.MESHAnterior Cerebral Artery-
dc.subject.MESHCerebral Angiography-
dc.subject.MESHFemale-
dc.subject.MESHHumans-
dc.subject.MESHIntracranial Aneurysm-
dc.subject.MESHMale-
dc.subject.MESHMiddle Aged-
dc.subject.MESHRetrospective Studies-
dc.subject.MESHSubarachnoid Hemorrhage-
dc.subject.MESHTreatment Outcome-
dc.titleAneurysms of the Proximal (A1) Segment of the Anterior Cerebral Artery: A Clinical Analysis of 31 Cases-
dc.typeArticle-
dc.identifier.pmid30928587-
dc.subject.keywordAneurysm-
dc.subject.keywordAnterior cerebral artery-
dc.subject.keywordRuptured aneurysm-
dc.subject.keywordSubarachnoid hemorrhage-
dc.contributor.affiliatedAuthorKim, MK-
dc.contributor.affiliatedAuthorLim, YC-
dc.type.localJournal Papers-
dc.identifier.doi10.1016/j.wneu.2019.03.178-
dc.citation.titleWorld neurosurgery-
dc.citation.volume127-
dc.citation.date2019-
dc.citation.startPagee488-
dc.citation.endPagee496-
dc.identifier.bibliographicCitationWorld neurosurgery, 127. : e488-e496, 2019-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
dc.identifier.eissn1878-8769-
dc.relation.journalidJ018788750-
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Neurosurgery
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