The Neurodiagnostic Journal最新文献

A century ago, it was a challenge for neuroscientists to decipher the mysteries of human brain functioning until German psychiatrist Hans Berger discovered what is now one of the most well-known electrophysiological recording techniques to examine brain function, EEG. He is rightly regarded as the Father of The Electroencephalogram (EEG), since he performed the first human electroencephalogram in 1924. Berger attempted to investigate the connection between psychology and physiology and to solve the "psychic energy" enigma. Despite turbulence in his professional life and slow progress in his research, he persevered and succeeded in giving humankind an indispensable technique that is now widely used in clinical and research practice. His publications on EEG provide valuable insight into our current understanding of several of the brain's responses to physiological and pathological phenomena. In July 2024, it will be 100 years since Berger recorded the first human EEG, and that calls for a celebration among EEG researchers, neuroscientists, psychiatrists, and neurologists. This article presents a brief account of his journey and commemorates Hans Berger's contributions to the field of neurodiagnostics.

The purpose of this strategic staffing study was to retrospectively evaluate the impact of the charge neurodiagnostic technologist (NDT) within a 24/7 pediatric NAEC Level IV, ABRET LAB-LTM accredited epilepsy monitoring unit (EMU) during a 4-month pilot. The association between a high-reliability organization (HRO), Lean thinking, and organizational strategic goals were utilized as guiding principles. This paper reviews the operational need to further develop frontline neurodiagnostic leadership roles within Ann & Robert H. Lurie Children's Hospital of Chicago along with the design and implementation, training, and competencies required.

Transcranial motor-evoked potentials (TcMEPs) play an integral role in assessing motor tract function in surgical procedures where motor function is at risk. However, transcranial stimulation creates a risk for oral trauma. Several studies have reported on distinct factors that can influence the rate of TcMEP-induced oral trauma, but little is known about how an anesthetic regimen can influence this rate. In this retrospective review, we investigated the incidence of oral injury under total intravenous anesthesia (TIVA) and balanced anesthesia in 66,166 cases from 2019 to 2021. There were 295 oral injuries in our sample, yielding an incidence of 0.45%, which is in line with ranges reported in the literature. A total of 222 of the injured patients were sedated with balanced anesthesia, while the remaining 73 were under TIVA anesthetics. This difference in distribution was statistically significant (p < 0.0002). Our findings suggest TIVA is associated with lower risk of oral trauma when TcMEPs are monitored, thereby improving patient safety.

We report a case where neuromonitoring, using motor evoked potentials (MEP), detected an intraoperative L5 nerve root deficit during a lumbosacral decompression and instrumented fusion procedure. Critically, the MEP changes were not preceded nor accompanied by any significant spontaneous electromyography (sEMG) activity. Presumptive L5 innervated muscles, including tibialis anterior (TA), extensor hallucis longus (EHL) and gluteus maximus, were targets for nerve root surveillance using combined MEP and sEMG techniques. During a high-grade spondylolisthesis correction procedure, attempts to align a left-sided rod resulted in repeated loss and recovery cycles of MEP from the TA and EHL. No accompanying EMG alerts were associated with any of the MEP changes nor were MEP variations seen from muscles innervated above and below L5. After several attempts, the rod alignment was achieved, but significant MEP signal decrement (72% decrease) remained from the EHL. Postoperatively, the patient experienced significant foot drop on the left side that recovered over a period of 3 months. This case contributes to a growing body of evidence that exclusive reliance on sEMG for spinal nerve root scrutiny can be unreliable and MEP may provide more dependable data on nerve root patency.