起源于近端a(1)开窗远端的破裂动脉瘤：病例报告及文献复习
Ruptured aneurysm arising from the distal end of a proximal a(1) fenestration : case report and review of the literature.
作者信息
Koh Jun Seok, Kim Eui Jong, Lee Seung Hwan, Bang Jae Seung
机构信息
Department of Neurosurgery, Stroke and Neurological Disorders Centre, East-West Neo Medical Hospital, Kyung Hee University School of Medicine, Seoul, Korea.
出版信息
J Korean Neurosurg Soc. 2009 Jan;45(1):43-5. doi: 10.3340/jkns.2009.45.1.43. Epub 2009 Jan 31.
Abstract
A 75-year-old female presented with subarachnoid hemorrhage. Angiography revealed a partial duplication (fenestration) in the proximal A(1) segment and a ruptured aneurysm at the distal end of A(1) fenestration. This congenital anomaly accompanying an aneurysm was associated with duplicated ipsilateral middle cerebral artery (MCA). Congenital defect of the arterial wall and hemodynamic factors at the fenestrated A(1) are considered to play a significant role in the development of this aneurysm. The present case is peculiar because not only the ruptured A(1) aneurysm was related with the anterior and middle cerebral artery duplication but also the location of A(1) fenestration and the origin of A(1) aneurysm in a fenestration are quite unusual.
摘要
一名75岁女性出现蛛网膜下腔出血。血管造影显示A（1）段近端存在部分重复（开窗），且在A（1）开窗远端有一个破裂的动脉瘤。这种伴有动脉瘤的先天性异常与同侧大脑中动脉（MCA）重复有关。动脉壁的先天性缺陷以及开窗的A（1）处的血流动力学因素被认为在该动脉瘤的形成中起重要作用。本病例很特殊，因为不仅破裂的A（1）动脉瘤与大脑前动脉和大脑中动脉重复有关，而且A（1）开窗的位置以及开窗处A（1）动脉瘤的起源都非常不寻常。
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