Unexpected abnormal intraoperative neurophysiologic monitoring change by multiple spontaneous intracerebral

Sungjoon Lee1, Hyungon Lee2, Byung-Sam Choi2

  • 1Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.

We report a patient with multiple angiographically negative intracerebral haemorrhages, which were recognized by significant changes in intraoperative neurophysiologic monitoring during the coil embolization of a left middle cerebral artery aneurysm.