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Seizures in Patients With Metastatic Brain Tumors: Prevalence, Clinical Characteristics, and Features on EEG
Conclusions: Seizures and epileptiform discharges are common in patients with MB. Tumor size and pathology were significantly associated with CDS. Larger studies are needed for further analysis. (Source: Journal of Clinical Neurophysiology)
Source: Journal of Clinical Neurophysiology - March 1, 2021 Category: Neurology Tags: Original Research Source Type: research

EEG Correlates of Delirium in Children and Young Adults With CD19-Directed CAR T Cell Treatment-Related Neurotoxicity
Conclusions: Continuous EEG monitoring is high yield for seizure detection in high-risk chimeric antigen receptor T cell patients, and electrographic-only seizures are common. Increasing severity of EEG background abnormalities correlates with increasing neurotoxicity grade. (Source: Journal of Clinical Neurophysiology)
Source: Journal of Clinical Neurophysiology - March 1, 2021 Category: Neurology Tags: Original Research Source Type: research

EEG in the Pediatric Intensive Care Unit: An Irish Experience
Conclusions: EEG provides important diagnostic information in a large proportion of PICU patients. In the absence of 24/7 EEG availability, empirical antiepileptic drug utilization is high. (Source: Journal of Clinical Neurophysiology)
Source: Journal of Clinical Neurophysiology - March 1, 2021 Category: Neurology Tags: Original Research Source Type: research

Continuous EEG Findings in Autoimmune Encephalitis
Conclusion: Our study confirms a signature EEG pattern in anti-N-methyl-D-aspartate AE, termed extreme delta brush, identified as generalized rhythmic delta activity plus fast activity in our study. We found no other pattern association with other AE subtypes. We also found a high incidence of seizures among patients with AE. Finally, periodic or rhythmic patterns, seizures, and new-onset refractory status epilepticus conferred an increased risk of poor outcome regardless of AE subtype. (Source: Journal of Clinical Neurophysiology)
Source: Journal of Clinical Neurophysiology - March 1, 2021 Category: Neurology Tags: Original Research Source Type: research

High-Density EEG in Current Clinical Practice and Opportunities for the Future
Summary: High-density EEG (HD-EEG) recordings use a higher spatial sampling of scalp electrodes than a standard 10-20 low-density EEG montage. Although several studies have demonstrated improved localization of the epileptogenic cortex using HD-EEG, widespread implementation is impeded by cost, setup and interpretation time, and lack of specific or sufficient procedural billing codes. Despite these barriers, HD-EEG has been in use at several institutions for years. These centers have noted utility in a variety of clinical scenarios where increased spatial resolution from HD-EEG has been required, justifying the extra t...
Source: Journal of Clinical Neurophysiology - March 1, 2021 Category: Neurology Tags: Special Article Source Type: research

Ambulatory EEG Usefulness in Epilepsy Management
Summary: Long-term video-EEG monitoring has been the gold standard for diagnosis of epileptic and nonepileptic events. Medication changes, safety, and a lack of recording EEG in one's habitual environment may interfere with diagnostic representation and subsequently affect management. Some spells defy standard EEG because of ultradian and circadian times of occurrence, manifest nocturnal expression of epileptiform activity, and require classification for clarifying diagnostic input to identify optimal treatment. Some patients may be unaware of seizures, have frequent events, or subclinical seizures that require quantif...
Source: Journal of Clinical Neurophysiology - March 1, 2021 Category: Neurology Tags: Invited Review Source Type: research

Long-term Home Video EEG for Recording Clinical Events
Summary: Around 50 years after the first EEG acquisition by Hans Berger, its use in ambulatory setting was demonstrated. Ever since, ambulatory EEG has been widely available and routinely used in the United States (and to a lesser extent in Europe) for diagnosis and management of patients with epilepsy. This technology alone cannot help with semiological characterization, and absence of video is one of its main drawbacks. Addition of video to ambulatory EEG potentially improves diagnostic yield and opens new aspects of utility for better characterization of patient's events, including differential diagnosis, classifica...
Source: Journal of Clinical Neurophysiology - March 1, 2021 Category: Neurology Tags: Invited Review Source Type: research

Ambulatory EEG to Classify the Epilepsy Syndrome
Summary: Recording of interictal epileptiform discharges to classify the epilepsy syndrome is one of the most common indications for ambulatory EEG. Ambulatory EEG has superior sampling compared with standard EEG recordings and advantages in terms of cost-effectiveness and convenience compared with a prolonged inpatient EEG study. Ambulatory EEG allows for EEG recording in all sleep stages and transitional states, which can be very helpful in capturing interictal epileptiform discharges. In the absence of interictal epileptiform discharges or in patients with atypical events, the characterization of an epilepsy syndrom...
Source: Journal of Clinical Neurophysiology - March 1, 2021 Category: Neurology Tags: Invited Review Source Type: research

Ambulatory EEG Monitoring, Reviewing, and Interpreting
Summary: This section of this volume of the Journal of Neurophysiology's review of ambulatory EEG (aEEG) is an overview of the uses of the technique, the clinicians who most often use it, and why they use it. It looks at the use of aEEG from the perspectives of the “generalist” and the “specialist” and discusses where they have similar interests and where their interest may diverge. It compares the use of aEEG to the more classic inpatient-based epilepsy monitoring unit service and compares the advantages and disadvantages of the two approaches (aEEG vs. epilepsy monitoring unit). This section then reviews how ...
Source: Journal of Clinical Neurophysiology - March 1, 2021 Category: Neurology Tags: Invited Review Source Type: research

Utility of Ambulatory Surface Electroencephalography
No abstract available (Source: Journal of Clinical Neurophysiology)
Source: Journal of Clinical Neurophysiology - March 1, 2021 Category: Neurology Tags: Guest Editorial Source Type: research

Transcranial Motor Evoked Potential Monitoring in a Patient With a Deep Brain Stimulator: A Case Report
Summary: A major complication of surgical scoliosis correction is permanent injury of the spinal cord. Intraoperative neuromonitoring continually evaluates spinal cord function through monitoring sensory and corticospinal motor tracts. There is no literature or manufacturer recommendation on whether transcranial motor evoked potential (tcMEP) monitoring can be performed safely in the presence of a deep brain stimulator (DBS) system. A 17-year-old adolescent boy with severe neuromuscular scoliosis presented for a posterior spinal fusion. The patient suffered from generalized dystonia treated with a DBS terminating in th...
Source: Journal of Clinical Neurophysiology - January 1, 2021 Category: Neurology Tags: Case Report Source Type: research

McLean EMG guide, 2nd Edition
No abstract available (Source: Journal of Clinical Neurophysiology)
Source: Journal of Clinical Neurophysiology - January 1, 2021 Category: Neurology Tags: Book Review Source Type: research

Hematoma Risk After Needle Electromyography in Patients Using Newer Oral Anticoagulants
Conclusions: Patients on NOACs had minimal risk of clinically relevant hemorrhagic complications, and the risk is not significantly different from those on warfarin. (Source: Journal of Clinical Neurophysiology)
Source: Journal of Clinical Neurophysiology - January 1, 2021 Category: Neurology Tags: Original Research Source Type: research

Mathematical Analysis of EEG Concordance in Preterm Twin Infants
Purpose: Preterm twins are at higher risk of neurodisability than preterm singletons, with monochorionic–diamniotic (MCDA) twins at higher risk than dichorionic–diamniotic (DCDA) twins. The impact of genetic influences on EEG concordance in preterm twins (Source: Journal of Clinical Neurophysiology)
Source: Journal of Clinical Neurophysiology - January 1, 2021 Category: Neurology Tags: Original Research Source Type: research

Relationship Between Abnormalities in Resting-State Quantitative Electroencephalogram Patterns and Poststroke Depression
Conclusions: Absolute powers of alpha and theta bands significantly distinguish between PSD patients and PSND subjects. Besides, absolute alpha1 power is positively associated with the severity of depression. (Source: Journal of Clinical Neurophysiology)
Source: Journal of Clinical Neurophysiology - January 1, 2021 Category: Neurology Tags: Original Research Source Type: research