Ruptured aneurysm associated with partially duplicated posterior communicating artery--case report.
Ruptured aneurysm associated with partially duplicated posterior communicating artery--case report.
复制标题
与部分重复的后交通动脉相关的破裂动脉瘤——病例报告。
DOI：
10.2176/nmc.42.23
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发表时间：
2002
影响因子：
1.9
通讯作者：
A. Yokota
中科院分区：
文献类型：
--
作者：
M. Hashimoto;E. Urasaki;Satoshi Tsujigami;A. Yokota
一位65岁的女性，因囊性动脉瘤破裂并罕见的后交通动脉变异（PcoA），部分重复PcoA。具有这种变异的PcoA在动脉瘤颈的远端分叉，两个分支独立地汇入大脑后动脉。最初的夹闭未能将动脉瘤与两个分支中的一个分离，因此动脉瘤圆顶继续搏动和出血。临时夹住近段颈内动脉，发现两条分支的分叉就在动脉瘤颈的远端。使用弯曲的Yasargil夹子夹住动脉瘤并保留PcoA和分支。由于动脉结构可能被增厚的蛛网膜所掩盖，因此需要仔细观察PcoA的变化。
A 65-year-old woman presented with a ruptured saccular aneurysm associated with a rare variation of the posterior communicating artery (PcoA), partially duplicated PcoA. The PcoA with this variation forked just distal to the aneurysmal neck, and the two branches independently merged into the posterior cerebral artery. Initial clipping failed to isolate the aneurysm from one of the two branches, so the aneurysmal dome continued to pulsate and bleed. Temporary clipping of the proximal internal carotid artery revealed the fork of the two branches just distal to the aneurysmal neck. A curved Yasargil clip was used to clip the aneurysm and preserve the PcoA and branches. Careful observation of this PcoA variation is needed because the arterial structures may be hidden by the thickened arachnoid membrane.