Maeda Kazushi, Kawano Yosuke, Maehara Naoki, Michiwaki Yuhei, Nagaoka Shintaro, Uno Junji, Gi Hidefuku, Kanemoto Yukihide
Department of Neurosurgery, Baba Memorial Hospital, Sakai City, Osaka, Japan.
Neuroradiol J. 2020 Apr;33(2):140-144. doi: 10.1177/1971400920902537. Epub 2020 Feb 4.
Saccular aneurysms in the non-branching segment of the distal anterior cerebral artery (DACA) are extremely rare. Here, we describe the first case of coil embolization using a simple, non-adjunctive technique for an aneurysm at this rare location.
A 74-year-old man with an asymptomatic, unruptured aneurysm of the right DACA was followed up annually for 3 years by medical checkup. Endovascular treatment was proposed because of a slight angiographic change in the shape of the aneurysm in the past year. The aneurysm at the non-branching site of the right calloso-marginal artery was 2 mm distal to the origin, and measured 3 mm in height and 3.3 mm in width, with a neck measuring 1.7 mm wide; the calloso-marginal artery diameter was 1.6 mm. The aneurysm was successfully embolized with a simple technique using a Pre-Shaped S Microcatheter and two coils.
The simple, non-adjunctive technique for coil embolization of saccular side-wall type aneurysm in the non-branching segment of the DACA could be performed using the appropriate catheter and a softer coil.
大脑前动脉远端非分支段（DACA）的囊状动脉瘤极为罕见。在此，我们描述首例采用简单、非辅助技术对该罕见部位动脉瘤进行弹簧圈栓塞的病例。
一名74岁男性，右侧DACA有无症状、未破裂动脉瘤，通过体检每年随访3年。因过去一年动脉瘤形态出现轻微血管造影变化，建议进行血管内治疗。右侧胼周动脉非分支部位的动脉瘤位于起源点远端2毫米处，高3毫米，宽3.3毫米，颈部宽1.7毫米；胼周动脉直径为1.6毫米。使用预塑形S型微导管和两个弹簧圈，通过简单技术成功栓塞该动脉瘤。
使用合适的导管和较软的弹簧圈，可对DACA非分支段的囊状侧壁型动脉瘤进行简单、非辅助的弹簧圈栓塞技术。
