scholarly journals Tongue Laceration during Neurophysiologic Monitoring with Motor Evoked Potentials

2012 ◽  
Vol 02 (05) ◽  
pp. 226-227 ◽  
Author(s):  
Sergey Pisklakov ◽  
Vanny Le ◽  
Paul Sandoval
Keyword(s):  
Evoked Potentials ◽  
Motor Evoked Potentials ◽  
Neurophysiologic Monitoring

Neurophysiologic Monitoring

2019 ◽  
Author(s):  
Scott Vaughan ◽  
Chadron Vassar ◽  
Nitin Kumar ◽  
Kerolos Yousef
Keyword(s):  
Nervous System ◽  
Evoked Potentials ◽  
Predictive Value ◽  
Auditory Evoked Potentials ◽  
Motor Evoked Potentials ◽  
Neurophysiologic Monitoring ◽  
High Positive Predictive Value ◽  
Sensory Evoked Potentials ◽  
Sensory Evoked ◽  
Bispectral Index Monitor

Neurophysiologic monitoring is a diverse group of instruments that are used to monitor the central and peripheral nervous system during surgical procedures. Some are used to monitor anesthetic depth, whereas others are used by neurologists to monitor the integrity of the nervous system during surgical procedure. The goal of neurophysiologic monitoring is to have reliable, reproducible, and predictive monitors that can identify impending compromise to the neurologic system (or anesthetic) with minimal false predictive value and high positive predictive value. This allows for the identification of neurologic tissues by location and type that are at risk of compromise by vascular and/or mechanical injury. This review contains 3 figures, 8 tables, and  34 references. Key Words: auditory evoked potentials, bispectral index monitor, electrocorticography, electroencephalography, electromyographic monitoring, M-ENTROPY, motor evoked potentials, narcotrend index, sensory evoked potentials, spectral analysis

Neurophysiologic Monitoring

2018 ◽  
Author(s):  
Antoun Koht ◽  
Tod B. Sloan
Keyword(s):  
Evoked Potentials ◽  
Motor Evoked Potentials ◽  
Auditory Brainstem ◽  
Auditory Brainstem Responses ◽  
Corrective Surgery ◽  
Neurophysiologic Monitoring ◽  
Intraoperative Neurophysiologic Monitoring ◽  
Evoked Electromyography ◽  
Signal Evaluation

Intraoperative neurophysiologic monitoring is used for monitoring and mapping of neurological structures during surgery and procedures where the neurological structures are at risk. Among the most commonly used techniques are electrophysiologic techniques, which include spontaneous and evoked electromyography, somatosensory evoked potentials, motor evoked potentials, electroencephalography, and auditory brainstem responses. These methods differ in their responses to anesthesia and in their clinical contribution to monitoring because of differing anatomy. Their use in spinal corrective surgery highlights the role of the anesthesiologist during cases when these techniques are utilized. Optimization of anesthesia, position, and physiology provide better monitoring conditions, enhance signal evaluation, and may lead to better neurological outcome.

Neurophysiologic Monitoring for Neurosurgery

2019 ◽  
pp. 137-148
Author(s):  
Antoun Koht ◽  
Laura B. Hemmer ◽  
J. Richard Toleikis ◽  
Tod B. Sloan
Keyword(s):  
Patient Outcome ◽  
Decision Making ◽  
Spinal Cord ◽  
Evoked Potentials ◽  
Motor Evoked Potentials ◽  
Neurophysiological Monitoring ◽  
New Techniques ◽  
Neurophysiologic Monitoring ◽  
Supportive Role ◽  
Improve Patient

Intra-operative neurophysiological monitoring (IOM) has evolved substantially since its beginnings in the 1970s with somatosensory evoked potentials (SSEP) and facial nerve electromyography (EMG). The introduction of new techniques (especially motor evoked potentials [MEP]) and refinements of older techniques have become important tools that the surgeon can use to enhance intra-operative decision making and improve patient outcome of surgical (e.g., intracranial, neurovascular, skull base and brainstem, spine and spinal cord, peripheral nerve) procedures. These monitoring modalities are used to map the anatomic location of neural structures and monitor the functional status of the neural tracts. The anaesthetist plays a key supportive role in monitoring and management when IOM indicates potential neural compromise.

scholarly journals Combined extradural-interdural-intradural approach to a trigeminal nerve cystic haemangiopericytoma with intra-operative cranial nerve monitoring

2019 ◽  
Vol 21 (Supplement_4) ◽  
pp. iv18-iv18
Author(s):  
Joseph Frantzias ◽  
José Lavrador ◽  
Noémia Pereira ◽  
Richard Gullan ◽  
Keyoumars Ashkan ◽  
...  
Keyword(s):  
Evoked Potentials ◽  
Trigeminal Nerve ◽  
Cranial Nerve ◽  
Motor Evoked Potentials ◽  
Close Relation ◽  
Blink Reflex ◽  
Neurophysiologic Monitoring ◽  
Complete Tumour ◽  
Sensory Evoked Potentials ◽  
Sensory Evoked

Abstract Objectives Haemangiopericytoma of the trigemimal nerve is extremely rare, with only two previous cases described to our knowledge. We present the surgical approach to this tumour, and describe a previously poorly reported method of monitoring the function of the branches of the trigeminal nerve: mapping of the sensory roots through transcranial somatosensory cortex sensory evoked potentials (SSEPs), motor evoked potentials (MEP) for the motor root and blink reflex. Design Case and technical reports Subjects 32 year-old male patient presenting with headaches and vomiting, found to have a mixed cystic-solid tumour of the left middle skull base region, in close relation with the foramen ovale and Meckel’s cave. Methods The radiological features of the tumour, technical aspects of the technical approach and neurophysiologic monitoring will be described. Results A pterional craniotomy with fronto-temporal extradural-interdural-intradural approach, and the tumour was debulked with MEP, SSEP and blink reflex monitoring of the branches of the trigeminal nerve. Complete tumour removal was achieved with no post-operative cranial nerve deficits. The histopathology revealed a cystic haemangiopericytoma. Conclusions Haemangiopericytoma is a rare entity. MEP and SSEP monitoring of the trigeminal nerve can be used to achieve complete and safe removal of the tumour.

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