Benefit of Intraoperative Somatosensory Evoked Potentials without Motor Evoked Potentials in Unruptured Cerebral Aneurysm Clipping

Objective : Intraoperative neurophysiological monitoring(IONM), particularly of somatosensory evoked potentials(SSEP) and motor evoked potentials(MEP), is a technique used to predict and prevent neurologic injury during clipping surgery of intracranial unruptured aneurysms. This study was designed to evaluate the effectiveness of applying SSEP with and without MEP monitoring during aneurysm surgery.