大脑中动脉镜像动脉瘤

Mirror - image aneurysm of medical cerebral artery

目的 探讨大脑中动脉（MCA）镜像动脉瘤的临床特征、影像学改变及显微外科手术治疗的疗效.方法 回顾分析显微外科手术治疗的9例18个MCA镜像动脉瘤患者的临床资料.采取早期与择期、一期与分期相结合的方法处理MCA镜像动脉瘤,原则是先处理破裂动脉瘤,再处理未破裂动脉瘤.结果 动脉瘤直接夹闭17个,未处理1个.依据GOS判断：优良6例,轻残2例,重残1例.结论 将MCA镜像动脉瘤分为Ⅰ型（完全对称型）和Ⅱ型（不完全对称型）有助于判断出血的责任动脉瘤.显微外科手术治疗MCA镜像动脉瘤效果显著.

Objective To study the clinical characteristics, neuroradiological manifestations of mirror - image aneurysm of middle cerebral artery （MCA） and effects of microsurgical management.Method The clinical data of 9 cases with 18 mirror - image aneurysms of MCA which underwent microsurgical operation were analysed retrospectively. The mirror - image aneurysms of MCA were treated through the method of combining early - stage with select - stage operation and one - stage with two - stage operation. The operating principle was the ruptured aneurysm performed treated first and the unruptureed aneurysm performed treated second. Results Seventeen aneurysms were clipped directly and one aneurysm did not treat. Surgical outcome were good in 6 cases, light disability in 2 cases and severe disability in 1 case. Conclusions It can help to determine the responsibility aneurysm of ruptured aneurysms if the mirror - image aneurysm of MCA had been divided into Ⅰ model （ perfectly symmetry model ） and Ⅱ model （ in perfectly symmetry model）. The surgical outcome were predominance if the mirror -image aneurysm of MCA performed microsurgical operation.