Journal of Clinical Neurophysiology This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

Intrarater and Interrater Reliability of Heckmatt Scoring System in Amyotrophic Lateral Sclerosis
Conclusions: The Heckmatt score is a reliable method in evaluating muscles of the upper extremities in patients with amyotrophic lateral sclerosis. It moderately correlates with quantitative values and functional status. (Source: Journal of Clinical Neurophysiology)
Source: Journal of Clinical Neurophysiology - July 1, 2021 Category: Neurology Tags: Original Research Source Type: research

Practice Guideline: Use of Quantitative EEG for the Diagnosis of Mild Traumatic Brain Injury: Report of the Guideline Committee of the American Clinical Neurophysiology Society
Summary: Despite many decades of research, controversy regarding the utility of quantitative EEG (qEEG) for the accurate diagnosis of mild traumatic brain injury (mTBI) remains. This guideline is meant to assist clinicians by providing an expert review of the clinical usefulness of qEEG techniques for the diagnosis of mTBI. This guideline addresses the following primary aim: For patients with or without posttraumatic symptoms (abnormal cognition or behavior), does qEEG either at the time of injury or remote from the injury, as compared with current clinical diagnostic criteria, accurately identify those patients with m...
Source: Journal of Clinical Neurophysiology - July 1, 2021 Category: Neurology Tags: ACNS GUIDELINE Source Type: research

Tilt Test: A Review
Summary: This review recapitulates the head-up tilt test, which is commonly used for evaluation of orthostatic syndromes and dysautonomia. Tilt test evaluates autonomic system responses to orthostatic stress. Established tilt testing includes monitoring of heart rate and blood pressure; adding capnography and cerebral blood flow monitoring expands its diagnostic yield and allows assessing cerebral blood flow regulation. Common syndromes detectable by the tilt test are neurally mediated syncope (vasodepressor, cardiovagal, or mixed), orthostatic hypotension, postural orthostatic tachycardia syndrome, hypocapnic cerebral...
Source: Journal of Clinical Neurophysiology - July 1, 2021 Category: Neurology Tags: Invited Review Source Type: research

Antibody Testing for Suspected Autoimmune Autonomic Dysfunction and Small Fiber Neuropathies
Summary: Autonomic dysfunction and small fiber neuropathies are heterogeneous disorders with a wide array of potential etiologies. As with other neurologic diseases, autoantibodies specific to neural tissue, either in the setting of cancer or systemic autoimmunity, may cause autonomic abnormalities. Given the complex and varied functions of the autonomic nervous system, however, the presentation of these conditions may be quite variable. This, in addition to pitfalls of autonomic testing especially for the novice, can lead to inaccuracies in recognizing and characterizing these conditions. We now have a large number of...
Source: Journal of Clinical Neurophysiology - July 1, 2021 Category: Neurology Tags: Invited Review Source Type: research

Auxiliary Tests of Autonomic Functions
Summary: The autonomic nervous system is a complex neural network that controls several organ systems. Its assessment includes a detailed history of autonomic functions, clinical examination, and autonomic tests. Most widely used is a battery of tests that assess cardiovascular reflex autonomic and sudomotor tests, which include deep breathing (assesses parasympathetic function), Valsalva maneuver, tilt test (both assess parasympathetic and adrenergic functions), and sudomotor testing for the evaluation of postganglionic sudomotor fibers. These basic tests represent a foundation of autonomic testing. Nevertheless, the ...
Source: Journal of Clinical Neurophysiology - July 1, 2021 Category: Neurology Tags: Invited Review Source Type: research

Basic Tests of Autonomic Function
Summary: Over the past 3 decades, tests of autonomic function have become increasingly standardized across most laboratories, particularly with commercially available equipment similar to other neurophysiologic tests. Most neurologically based laboratories perform four or five tests of autonomic function. Two of these, the sudomotor axon reflex response and the thermoregulatory sweat test (which some laboratories do not perform because it requires extensive equipment), examine sudomotor autonomic function. The remaining three, the cardiovascular response to a tilt table test, the cardiovascular response to the Valsalva...
Source: Journal of Clinical Neurophysiology - July 1, 2021 Category: Neurology Tags: Invited Review Source Type: research

Autonomic Testing
No abstract available (Source: Journal of Clinical Neurophysiology)
Source: Journal of Clinical Neurophysiology - July 1, 2021 Category: Neurology Tags: Guest Editorial Source Type: research

American Clinical Neurophysiology Society Guideline 1: Minimum Technical Requirements for Performing Clinical Electroencephalography: ERRATUM
No abstract available (Source: Journal of Clinical Neurophysiology)
Source: Journal of Clinical Neurophysiology - May 1, 2021 Category: Neurology Tags: Erratum Source Type: research

JCN Book Review
No abstract available (Source: Journal of Clinical Neurophysiology)
Source: Journal of Clinical Neurophysiology - May 1, 2021 Category: Neurology Tags: Book Review Source Type: research

COVID-19 Presenting With Confusion: An Unusual but Suggestive Electroencephalography Pattern of Encephalitis
Summary: A 78-year-old man was admitted for acute confusion. At initial investigation physical examination, blood and cerebrospinal fluid tests were unremarkable and EEG showed synchronous bifrontal periodic discharges, an evocative pattern of encephalitis. Coronavirus disease 2019 was diagnosed later after fever onset. Isolated mild confusion may thus be an initial clinical picture of Coronavirus disease 2019 infection. (Source: Journal of Clinical Neurophysiology)
Source: Journal of Clinical Neurophysiology - May 1, 2021 Category: Neurology Tags: Case Report Source Type: research

Transient Orthostatic Hypertension During Head-Up Tilt Test in Young Adults: A Phenotype of Blood Pressure Variability
Purpose: The mechanisms underlying orthostatic hypertension (OHT) remain poorly understood. The authors evaluated the cardiovascular, cerebrovascular dynamics, and autonomic response to head-up tilt test (HUTT) in young adults with symptoms of orthostatic intolerance and transient OHT. Methods: Forty-four female subjects were included (34 ± 13 years old) and categorized in three groups after a 30-minute 70° passive HUTT: symptomatic patients with OHT (surge of systolic blood pressure ≥20 mm Hg for at least 5 minutes at any given time during HUTT), orthostatic intolerance (symptomatic patients without orthost...
Source: Journal of Clinical Neurophysiology - May 1, 2021 Category: Neurology Tags: Original Research Source Type: research

Nocturnal Rapid Eye Movement Sleep Without Atonia can Be a Diagnostic Parameter in Differentiating Narcolepsy Type 1 From Type 2
Conclusions: As an electrophysiological biomarker, RSWA and tonic RSWA indices can be sensitive and specific polysomnography parameters in distinguishing narcolepsy type 1 from narcolepsy type 2. (Source: Journal of Clinical Neurophysiology)
Source: Journal of Clinical Neurophysiology - May 1, 2021 Category: Neurology Tags: Original Research Source Type: research

Neurophysiological Intraoperative Monitoring in the Elderly
Conclusions: Elderly patients have a similar rate of changes in IONM signals compared with younger patients during heterogeneous surgeries guided by IONM. (Source: Journal of Clinical Neurophysiology)
Source: Journal of Clinical Neurophysiology - May 1, 2021 Category: Neurology Tags: Original Research Source Type: research

A New Methodology for Intraoperative Monitoring of the Functional Integrity of the Phrenic Nerve During Cardiothoracic Surgery
Conclusions: We reported a new methodology which allows the assessment of phrenic nerve functional integrity during surgical procedures. (Source: Journal of Clinical Neurophysiology)
Source: Journal of Clinical Neurophysiology - May 1, 2021 Category: Neurology Tags: Original Research Source Type: research

Predictors of Nonconvulsive Seizure and Their Effect on Short-term Outcome
In this study, we aimed to determine the effect of NCSs on short-term outcome and to assess the clinical and EEG factors associated with NCSs. Methods: We retrospectively identified 219 adult patients from the EEG reporting system who underwent continuous EEG (cEEG) monitoring between January 2018 and June 2018. Patients with anoxic brain injury were excluded from the study. Clinical, laboratory, and EEG data were reviewed to determine potentially predictive factors of NCSs. The impact of NCSs on in-hospital mortality, length of stay, and disability on discharge was measured; an modified Rankin scale of three or g...
Source: Journal of Clinical Neurophysiology - May 1, 2021 Category: Neurology Tags: Original Research Source Type: research