{"title":"When the Crown has Thorns - Epileptic Spike-Wave Discharges over the Vertex: Erratum.","authors":"","doi":"10.1080/21646821.2025.2456412","DOIUrl":"https://doi.org/10.1080/21646821.2025.2456412","url":null,"abstract":"","PeriodicalId":22816,"journal":{"name":"The Neurodiagnostic Journal","volume":"65 1","pages":"76"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143626137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Early Neurophysiological Monitoring of Train of Four Assists in the Detection of Pseudocholinesterase Deficiency.","authors":"Victoria Celis, Shashank Gandhi, Kathryn Overzet","doi":"10.1080/21646821.2024.2401641","DOIUrl":"10.1080/21646821.2024.2401641","url":null,"abstract":"<p><p>A craniotomy with cortical and subcortical mapping was planned for a 64-year-old male with a large right frontotemporal brain mass. Total intravenous anesthesia was performed, and 200 milligrams of succinylcholine was administered at induction. A train of four prior to head pinning (52 minutes after succinylcholine administration) revealed zero of four twitches in the left hand and foot. The patient did not regain spontaneous breathing despite discontinuation of infusions and the surgeon canceled the case at 108 minutes from induction. The patient was safely extubated at 270 minutes. Pseudocholinesterase deficiency was suspected, and labs revealed that the patient was outside of the normal range for pseudocholinesterase enzyme at 698 units/L with a dibucaine inhibition number of 40. The patient's procedure was rescheduled 2 days later, and neuromuscular blockade was avoided. The procedure went ahead as planned with successful mapping and monitoring. This case highlights the effect of pseudocholinesterase deficiency on neuromonitoring and the importance of running train of four early on to detect neuromuscular junction issues in high-risk procedures. In this case, the surgeon was able to avoid pinning and positioning the patient and rescheduled the procedure so that motor mapping, direct cortical motor evoked potentials, and transcranial motor evoked potentials could be successfully performed.</p>","PeriodicalId":22816,"journal":{"name":"The Neurodiagnostic Journal","volume":" ","pages":"57-63"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142354339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Technical Tips: Recommendations for Reducing Emotional Distress Through a Trauma Informed Approach to EEG Lead Placements in the Pediatric Population.","authors":"Briana Choyeske","doi":"10.1080/21646821.2025.2455760","DOIUrl":"10.1080/21646821.2025.2455760","url":null,"abstract":"<p><p>When faced with challenging behaviors from pediatric patients, technologists can often feel unprepared. This can lead to poor appointment outcomes as well as unintended traumatic experiences for patients. It is important to understand the role the technologist plays in providing high-quality care that addresses behavioral concerns while minimizing trauma; however, training and education in this area of patient care is limited in the field of neurodiagnostics. This lack of training and education can deter technologists from working with the pediatric population. This article aims to address core reasons for displayed behaviors in pediatric patients as well as the risks associated with not addressing the behaviors during EEG lead placements. In an effort to continue striving for high-quality, family-centered care in the field of pediatric neurodiagnostics, proposed interventions such as the CARE process and distraction are outlined and discussed.</p>","PeriodicalId":22816,"journal":{"name":"The Neurodiagnostic Journal","volume":" ","pages":"46-56"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143504293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Megan V Ryan, Khoa Nguyen, Willy Boucharel, Caley Dunn, Sarah Graber, Joyce Oleszek, William B Harris, Emily Cooper, Corbett Wilkinson
{"title":"Comparison of EMG Waveforms versus Degree of Spread in Selective Dorsal Rhizotomy.","authors":"Megan V Ryan, Khoa Nguyen, Willy Boucharel, Caley Dunn, Sarah Graber, Joyce Oleszek, William B Harris, Emily Cooper, Corbett Wilkinson","doi":"10.1080/21646821.2025.2457293","DOIUrl":"10.1080/21646821.2025.2457293","url":null,"abstract":"<p><p>Selective dorsal rhizotomy (SDR) is a treatment for lower-extremity spasticity in disorders such as cerebral palsy (CP). \"Selective\" refers to sectioning nerve rootlets with the most abnormal responses on electromyography (EMG) upon intraoperative stimulation. EMG abnormalities can be classified by waveform appearance or by degree of spread throughout lower extremity muscles. We examine the relationship between different EMG waveforms and grades of spread. Intraoperative SDR EMG records from November 2009 through December 2021 were analyzed for waveform types and degrees of spread. Irregular, incremental, multiphasic, sustained, and clonic waveform patterns were considered more abnormal. Decremental, squared decremental, and squared waveforms were less abnormal. Degrees of spread were graded 0-4+, 4+ signifying the most abnormal spread. Distribution of grades of spread was compared between waveform patterns using pairwise Cochran-Armitage tests with Holm-Bonferroni correction. We hypothesized that more abnormal EMG waveform patterns would correlate with higher grades of spread. Sixty-three patients were included, with an average age of 8 years. Most had cerebral palsy (86%, n = 54). The remainder had brain malformations (8%, n = 5) and other etiologies (6%, n = 4). Higher grades of spread significantly increased the likelihood of multiphasic, sustained, or clonic patterns, compared to decremental, irregular, and squared patterns (p < .05). Squared waveforms decreased with higher grades of spread relative to other patterns (p < .05). Different EMG waveform patterns are associated with varying grades of spread in SDR, suggesting that evaluating both waveform pattern and degree of spread together can be useful in guiding rootlet sectioning.</p>","PeriodicalId":22816,"journal":{"name":"The Neurodiagnostic Journal","volume":" ","pages":"13-31"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143450235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Spinal Cord Infarction Presenting with Abnormal F Waves.","authors":"Daniel Gabay Moreira","doi":"10.1080/21646821.2024.2448359","DOIUrl":"10.1080/21646821.2024.2448359","url":null,"abstract":"<p><p>A 42-year-old female presented with acute onset of asymmetric lower extremity weakness, bilateral lower extremity areflexia and sensory loss, and urinary incontinence. Initial investigation with a spine MRI for a spinal cord process was negative, leading to further investigation with nerve conduction studies/electromyography (NCS/EMG). This revealed absent F waves bilaterally in the fibular nerves, and there was only one isolated F wave with decreased amplitude and increased latency in the left tibial nerve and had lack of heterogeneity in the right tibial nerve. Given the early presentation of her symptoms, this led to a working diagnosis of Guillain-Barré Syndrome, which was treated with plasmapheresis without improvement. After plasmapheresis, the diagnosis was revisited, and a repeat spine MRI revealed an extensive lower thoracic and lumbar spinal cord infarction. In this unique scenario, the properties and abnormalities of F waves are discussed and reviewed, along with the influence of acute central nervous system lesions on their configuration.</p>","PeriodicalId":22816,"journal":{"name":"The Neurodiagnostic Journal","volume":" ","pages":"64-75"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143365518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Of Pilots and Copilots: The Evolving Role of Artificial Intelligence in Clinical Neurophysiology.","authors":"Aatif M Husain","doi":"10.1080/21646821.2025.2465089","DOIUrl":"10.1080/21646821.2025.2465089","url":null,"abstract":"<p><p>Artificial intelligence (AI) is revolutionizing clinical neurophysiology (CNP), particularly in its applications to electroencephalography (EEG), electromyography (EMG), and polysomnography (PSG). AI enhances diagnostic accuracy and efficiency while addressing interrater variability and the growing data volume. The evolution of AI tools, from early mimetic methods to advanced deep learning techniques, has significantly improved spike and seizure detection in EEG and facilitated whole EEG evaluations, reducing the workload on clinicians. In EMG, AI demonstrates promise in identifying motor unit abnormalities and analyzing audio signals, though challenges persist due to limited datasets and clinical context considerations. PSG scoring has seen substantial integration of AI, with systems achieving high accuracy through uncertainty estimation and selective manual review, but limitations remain in analyzing epileptic activity and classifying certain sleep stages. As a \"co-pilot,\" AI augments human expertise by improving quality control, standardizing clinical trials, and enabling rapid data review, particularly for less experienced providers. Future AI advancements in CNP aim to shift from isolated data interpretation to providing clinical context, considering patient history, treatment options, and prognostic implications. While the potential of generative AI and \"AI-omics\" is transformative, the importance of thoughtful integration to augment rather than replace human expertise must be emphasized, ensuring that AI becomes a tool for collaboration and innovation in medicine.</p>","PeriodicalId":22816,"journal":{"name":"The Neurodiagnostic Journal","volume":" ","pages":"2-12"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143504286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}