TY - CHAP M1 - Book, Section TI - Intraoperative Neurologic Monitoring A1 - Keifer, John C. A1 - Cruz-Navarro, Jovany A1 - Borel, Cecil O. A1 - McDonagh, David L. A2 - Longnecker, David E. A2 - Mackey, Sean C. A2 - Newman, Mark F. A2 - Sandberg, Warren S. A2 - Zapol, Warren M. PY - 2017 T2 - Anesthesiology, 3e AB - KEY POINTSAnesthetic strategies to enhance intraoperative monitoring of the nervous system include techniques that minimize interference with neurophysiologic monitoring as well as techniques that preserve neurocognitive function during structural and functional mapping in awake patients.The cellular basis of normal electroencephalography (EEG) reveals a variety of pathways to produce alterations of electrical and neurocognitive function.Synchronous EEG is seen with sleep, sedation and anesthesia, and cerebral ischemia.Processed EEG algorithms can aid the objective assessment of EEG changes. As long as there is an understanding of the EEG features analyzed by these algorithms, pitfalls leading to inaccurate assessment can be avoided.Achieving reliability with evoked potential monitoring depends on minimizing anesthetic effects, maintaining constant anesthetic levels, and ensuring adequate tissue perfusion.Intraoperative wakefulness for cortical mapping has been achieved by a variety of techniques. For a successful procedure, all techniques must address maintenance of effective ventilation during craniotomy and a balance of clear sensorium and sufficient analgesia to enable effective patient participation.Intraoperative computed tomography (iCT), intraoperative magnetic resonance imaging (iMRI), and biplanar angiography are opening a whole new realm of real-time anatomic and physiologic monitoring that will further enhance neurosurgical patient outcomes. It is essential that the anesthesiologist have a clear understanding of these technologies to facilitate the neurosurgical intervention while maximizing patient safety. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/24 UR - accessanesthesiology.mhmedical.com/content.aspx?aid=1144116183 ER -