Intraoperative neuromonitoring and mapping during spinal cord untethering surgery. Preliminary findings from a single-centre paediatric neurosurgery unit.

Objective To review intraoperative neuromonitoring (IONM) and mapping (IONMa) utility during paediatric tethered cord surgery with particular attention to feasibility, measures to prevent injury, and postoperative outcome. Methods A retrospective analysis of spinal cord untethering surgery between 2015-2022. Cohort demographics, clinical and imaging characteristics of tethered cord, IONM/IONMa data and procedural details were summarised and associations between variables explored. Clinical outcome was assessed 3-months post procedure via review of medical records.

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.

Intraoperative neurophysiological monitoring of the phrenic nerve in videothoracoscopic surgeries

Intraoperative neurophysiological monitoring of the phrenic nerve in videothoracoscopic surgeries. Authors: Dr. Grossi Matias, Dr. Piñero Santiago, Dr. Zurita Perea Santos Nicolas, Dr. Perrote Federico.1 1Neurology Service, Intraoperative Neurophysiology Unit, Hospital Privado Universitario de Córdoba, Argentina. OBJECTIVE: Demonstrate the usefulness of intraoperative neurophysiological monitoring for phrenic nerve in videothoracoscopic surgeries. METHODS: Videothoracoscopic surgeries performing monitoring and nerve mapping techniques to avoid phrenic nerve injuries.

Dorsal Rhizotomy, Keyhole interlaminar approach and intraoperative neuromonitoring for spastic diplegia/ quadriplegia in children with cerebral palsy

OBJECTIVE: Dorsal rhizotomy is considered the gold standard for treating spastic diplegia/quadriplegia in children with cerebral palsy, when rehabilitation programs reveal insufficient to control excess of spasticity. We present the entire surgical technique along with its specific intraoperative neuromonitoring. METHODS: The Keyhole Interlaminar Dorsal rhizotomy (KIDr) modality has been developed to access – individually – all L2-S2 roots, intradurally at the corresponding dural sheath, and preserve the posterior spine architecture.

Intraoperative neuromonitoring using motor evoked potential with direct cortical stimulation for lower limb region

Introduction: Transcranial motor evoked potentials (Tc-MEPs) and somatosensory evoked potentials (SSEPs) have been used together for monitoring to prevent motor paralysis in the lower limb region. However, it is difficult to evaluate Tc-MEPs in the lower limb region accurately due to the limited placement of the stimulating electrodes. In this study, we report a direct cortical stimulation motor evoked potential (D-MEP).