Intraoperative motor-evoked potential monitoring during coil embolization for anterior choroidal artery aneurysms

被引：4

作者：

Ito, Akira ^{[1
,2
]}

Sato, Kenichi ^{[1
,3
]}

Niizuma, Kuniyasu ^{[2
,4
,5
]}

Endo, Hidenori ^{[1
,2
]}

Matsumoto, Yasushi ^{[1
]}

Tominaga, Teiji ^{[2
]}

机构：

[1] Kohnan Hosp, Dept Neuroendovasc Therapy, Sendai, Miyagi, Japan

[2] Tohoku Univ, Dept Neurosurg, Grad Sch Med, Aoba Ku, 1-1 Seiryo Machi, Sendai, Miyagi 9808574, Japan

[3] Tohoku Med & Pharmaceut Univ, Dept Neurosurg, Sendai, Miyagi, Japan

[4] Tohoku Univ, Dept Neurosurg Engn & Translat Neurosci, Grad Sch Biomed Engn, Sendai, Miyagi, Japan

[5] Tohoku Univ, Dept Neurosurg Engn & Translat Neurosci, Grad Sch Med, Sendai, Miyagi, Japan

来源：

NEURORADIOLOGY | 2022年 / 64卷 / 06期

关键词：

Anterior choroidal artery; Cerebral aneurysm; Endovascular treatment; Motor-evoked potential; MEP; BLOOD-FLOW INSUFFICIENCY; MICROVASCULAR DOPPLER; SURGERY; STIMULATION; ANATOMY;

D O I：

10.1007/s00234-021-02847-z

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

Purpose Intraoperative motor-evoked potential (MEP) monitoring is widely used in the neck clipping of cerebral aneurysms. Little is known regarding the usefulness of intraoperative MEP monitoring in endovascular aneurysm surgery. The purpose of this study was to validate the feasibility of intraoperative MEP monitoring during the coil embolization of anterior choroidal artery (AChA) aneurysms. Methods Clinical and angiographic data of consecutive patients who underwent coil embolization for unruptured AChA aneurysms with or without intraoperative MEP monitoring between January 2014 and December 2018 at our institute were abstracted and analyzed retrospectively. Results Twenty-three unruptured AChA aneurysms were treated. Eleven patients received MEP monitoring, and three of them experienced intraoperative reduction or disappearance of the MEP wave. Even during MEP changes, AChA filling showed no change in any of the three cases. Although one case with MEP monitoring encountered the disappearance of AChA filling, there was no change in MEP. This might be due to retrograde filling of the AChA from the anastomosis with the lateral posterior choroidal artery. AChA blood flow detected by angiography did not always reflect MEP status. When comparing the presence or absence of MEP monitoring, the volume embolization ratio of coiled aneurysms was significantly better in the MEP group. Conclusion Intraoperative MEP monitoring during endovascular coiling for AChA aneurysms may be feasible. AChA blood flow detected by angiography does not always reflect MEP status.

引用

页码：1221 / 1229

页数：9