Electrophysiological monitoring during intraoperative occlusion of middle cerebral artery aneurysms
LI Wen-Chao
ZHOU Wen-Ke
ZHAO Jin-Li
HUANG Li-Yong
HUI Lei
GAO Guo-jun
WANG Lei
JIN Bao-zhe
Abstract：Objective To observe the safe time limit of temporary clipping of the middle cerebral artery (MCA) with the intraoperative neurophysiological monitoring. Methods Under normal temperature and atmospheric pressure, intraoperative neuro-physiological monitoring was performed in 51 patients with 56 MCA aneurysms undergoing clipping. The duration and the number of temporary clipping of MCA, the changes in the electroencephalographic waves before and after the temporary clipping of MCA and the ischemic events related to the temporary clipping of MCA were observed and the relationship among them analyzed. Results Of 5 patients with ischemic electroencephalographic waveform after the temporary clipping of MCA, 2 had the normal electro-encephalographic waveform after the adoption of corresponding measures and 3 still had the ischemic electroencephalographic waveform and a certain degree of limb dysfunction 6 months after the operation. Conclusion It is suggested that the clipping of MCA for shorter than 8 minutes may be safe during the clipping for the MCA aneurysms.
Keywords：Intracranial aneurysmsMiddle cerebral arteryClippingElectrophysiological monitoringSafe time limit
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 405-406,415 )