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Clinical neurophysiology

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https://www.readbyqxmd.com/read/29689402/intradural-lumbar-migration-of-an-intracranial-neurosurgical-hemostatic-clip-associated-with-lumbosciatic-pain
#1
Mourad Ould-Slimane, Martin Petit, Gaëtan Tesson, Jordane Mouton, Rémi Gauthé
BACKGROUND: Clips implanted during intracranial neurosurgical procedures sometimes migrate intradurally with rare cases of spinal migration. The appearance of radicular symptoms of topography concordant with the position of the foreign body leads to discussion about the optimal therapeutic strategy. CASE DESCRIPTION: We report the case of a 52-year-old woman suffering from L5 radicular pain resistant to medical treatment in the presence of L4L5 lumbar stenosis and a neurosurgical clip migrated to the L5S1 level...
April 21, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29687017/the-interrelation-between-clinical-presentation-and-neurophysiology-of-posthypoxic-myoclonus
#2
Jonathan C van Zijl, Martijn Beudel, Bauke M de Jong, Joukje van der Naalt, Rodi Zutt, Fiete Lange, Walter M van den Bergh, Jan-Willem J Elting, Marina A J Tijssen
Objective: Posthypoxic myoclonus (PHM) in the first few days after resuscitation can be divided clinically into generalized and focal (uni- and multifocal) subtypes. The former is associated with a subcortical origin and poor prognosis in patients with postanoxic encephalopathy (PAE), and the latter with a cortical origin and better prognosis. However, use of PHM as prognosticator in PAE is hampered by the modest objectivity in its clinical assessment. Therefore, we aimed to obtain the anatomical origin of PHM with use of neurophysiological investigations, and relate these to its clinical presentation...
April 2018: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/29685807/removal-notice-to-eight-abstracts-in-abstracts-of-the-61st-scientific-annual-meeting-of-the-german-society-for-clinical-neurophysiology-and-functional-imaging-dgkn-leipzig-germany-april-27-29-2017
#3
(no author information available yet)
No abstract text is available yet for this article.
April 20, 2018: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29685207/psychiatric-benefits-of-lithium-in-water-supplies-may-be-due-to-protection-from-the-neurotoxicity-of-lead-exposure
#4
Eric E Brown, Philip Gerretsen, Bruce Pollock, Ariel Graff-Guerrero
INTRODUCTION: Lithium is a medication used to treat bipolar disorder and may also prevent cognitive decline and suicide. Lithium is also found naturally, in levels well below clinical doses, in drinking water worldwide, and levels have been inversely associated with rates of psychiatric disorders. Lead (Pb) is another element in the environment but is a toxin of public health concern. Negative effects of chronic lead exposure and possible benefits of environmental lithium exposure appear complementary...
June 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29682349/multiple-sclerosis-patients-with-markedly-low-intrathecal-antibody-response-in-sri-lanka
#5
S M K Gamage, I Wijeweera, S B Adikari, Katharina Fink, Jan Hillert, Anna Fogdell-Hahn, H M A Sominanda
Multiple sclerosis (MS) is a heterogeneous disease which is poorly studied in Asia, where the disease is known to be rare with significant differences in clinical and radiological presentations and intrathecal antibody response. Therefore the objective of this study was to determine clinical presentation, radiological and neurophysiological characteristics, and oligoclonal band status in Sri Lankan MS patients, following careful exclusion of patients with neuromyelitis optica spectrum disorders and other conditions mimicking multiple sclerosis...
2018: Multiple Sclerosis International
https://www.readbyqxmd.com/read/29680317/a-double-blind-placebo-controlled-phase-ii-randomised-cross-over-trial-investigating-the-use-of-duloxetine-for-the-treatment-of-chemotherapy-induced-peripheral-neuropathy
#6
Eva Battaglini, Susanna B Park, Elizabeth H Barnes, David Goldstein
BACKGROUND: Chemotherapy-induced peripheral neuropathy (CIPN) is a significant side effect of cancer treatment, potentially leading to early cessation of chemotherapy, enduring symptoms and long-lasting disability. Evidence from preclinical and clinical studies suggests that duloxetine, a serotonin-noradrenaline reuptake inhibitor, may be effective in the symptomatic treatment of CIPN. This double blind, placebo controlled, phase II randomised cross-over trial aims to determine whether treatment with duloxetine results in a reduction in chronic neuropathic symptoms experienced as a result of neurotoxic chemotherapy treatment...
April 19, 2018: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/29679698/neurophysiological-and-neuroradiological-multimodal-approach-for-early-poor-outcome-prediction-after-cardiac-arrest
#7
Maenia Scarpino, Giovanni Lanzo, Francesco Lolli, Riccardo Carrai, Marco Moretti, Maddalena Spalletti, Morena Cozzolino, Adriano Peris, Aldo Amantini, Antonello Grippo
INTRODUCTION: Prognosticating outcome after cardiac arrest(CA) requires a multimodal approach. However, evidence regarding combinations of methods is limited. We evaluated whether the combination of electroencephalography(EEG), somatosensory evoked potentials(SEPs) and brain computed tomography(CT) could predict poor outcome. METHODS: We screened our database regarding patients successfully resuscitated after CA, for whom EEG, SEPs and brain CT were available within 24 hours...
April 18, 2018: Resuscitation
https://www.readbyqxmd.com/read/29679154/effectiveness-of-a-mandibular-advancement-device-in-obstructive-sleep-apnea-patients-a-prospective-clinical-trial
#8
Rocío Marco Pitarch, Marina Selva García, Javier Puertas Cuesta, Jaime Marco Algarra, Enrique Fernández Julian, Antonio Fons Font
PURPOSE: This study aimed to determine the effectiveness of a mandibular advancement device in a sample of obstructive sleep apnea syndrome patients by the evaluation of respiratory and neurophysiologic parameters and clinical symptoms. Second, the influence of certain predictor factors related with the patient and the intraoral device, were considered in the final response with this treatment option. METHODS: Forty-one patients constituted the final sample. Outcomes were measured using polysomnography, Epworth sleepiness scale and an analogue visual snoring scale, before treatment and once the device was properly titrated...
April 20, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29678760/sub-millimeter-ecog-pitch-in-human-enables-higher-fidelity-cognitive-neural-state-estimation
#9
John Hermiz, Nicholas Rogers, Erik Kaestner, Mehran Ganji, Daniel R Cleary, Bob Carter, David Barba, Shadi Dayeh, Eric Halgren, Vikash Gilja
Electrocorticography (ECoG), electrophysiological recording from the pial surface of the brain, is a critical measurement technique for clinical neurophysiology, basic neurophysiology studies, and demonstrates great promise for the development of neural prosthetic devices for assistive applications and the treatment of neurological disorders. Recent advances in device engineering are poised to enable orders of magnitude increase in the resolution of ECoG without comprised measurement quality. This enhancement in cortical sensing enables the observation of neural dynamics from the cortical surface at the micrometer scale...
April 17, 2018: NeuroImage
https://www.readbyqxmd.com/read/29671621/a-research-framework-to-isolate-visuospatial-from-childhood-motor-coordination-phenotypes
#10
Michele Poletti
Clinicians acknowledge the presence of developmental cognitive phenotypes mainly characterized by a specific visuospatial impairment in presence of intact verbal functioning (usually referred as Nonverbal Learning Disability: NLD) since many decades, without providing sufficient empirical evidence supporting their nosological validity and inclusion in current diagnostic manuals. This contribution suggests that the goal of including NLD in future diagnostic manuals could be achieved only be the demonstration of the validity of this hypothesized clinical category...
April 19, 2018: Applied Neuropsychology. Child
https://www.readbyqxmd.com/read/29670817/dejerine-sottas-disease-in-childhood-genetic-and-sonographic-heterogeneity
#11
Sanne M R Hobbelink, Cain R Brockley, Rachel A Kennedy, Kate Carroll, Katy de Valle, Padma Rao, Mark R Davis, Nigel G Laing, Nicol C Voermans, Monique M Ryan, Eppie M Yiu
Introduction: The nerve sonographic features of Dejerine-Sottas disease (DSD) have not previously been described. Methods: This exploratory cross-sectional, matched, case-control study investigated differences in nerve cross-sectional area (CSA) in children with DSD compared to healthy controls and children with Charcot-Marie-Tooth disease type 1A (CMT1A). CSA of the median, ulnar, tibial, and sural nerves was measured by peripheral nerve ultrasound. The mean difference in CSA between children with DSD, controls, and CMT1A was determined individually and within each group...
April 2018: Brain and Behavior
https://www.readbyqxmd.com/read/29664058/relationships-between-rapid-eye-movement-sleep-behavior-disorder-and-neurodegenerative-diseases-clinical-assessments-biomarkers-and-treatment
#12
REVIEW
Min Li, Li Wang, Jiang-Hong Liu, Shu-Qin Zhan
Objective: Rapid eye movement sleep behavior disorder (RBD) is characterized by dream enactment and loss of muscle atonia during rapid eye movement sleep. RBD is closely related to α-synucleinopathies including Parkinson's disease, dementia with Lewy bodies, and multiple system atrophy. Many studies have investigated the markers of imaging and neurophysiological, genetic, cognitive, autonomic function of RBD and their predictive value for neurodegenerative diseases. This report reviewed the progress of these studies and discussed their limitations and future research directions...
April 20, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29663022/-diagnostics-and-conservative-treatment-of-cervical-and-lumbar-spinal-stenosis
#13
REVIEW
A Hug, S Hähnel, N Weidner
BACKGROUND: Degenerative stenotic spondylosis is not an uncommon cause of cervical spondylotic myelopathy (CSM) and cauda equina lesions in the aged population. Limited standardization exists with respect to diagnostic and therapeutic procedures. OBJECTIVE: Literature review with respect to diagnostic and therapeutic procedures for neurologically relevant cervical and lumbar spinals stenosis. MATERIAL AND METHODS: Comprehensive literature review...
April 16, 2018: Der Nervenarzt
https://www.readbyqxmd.com/read/29656311/consensus-paper-neurophysiological-assessments-of-ataxias-in-daily-practice
#14
REVIEW
W Ilg, M Branscheidt, A Butala, P Celnik, L de Paola, F B Horak, L Schöls, H A G Teive, A P Vogel, D S Zee, D Timmann
The purpose of this consensus paper is to review electrophysiological abnormalities and to provide a guideline of neurophysiological assessments in cerebellar ataxias. All authors agree that standard electrophysiological methods should be systematically applied in all cases of ataxia to reveal accompanying peripheral neuropathy, the involvement of the dorsal columns, pyramidal tracts and the brainstem. Electroencephalography should also be considered, although findings are frequently non-specific. Electrophysiology helps define the neuronal systems affected by the disease in an individual patient and to understand the phenotypes of the different types of ataxia on a more general level...
April 14, 2018: Cerebellum
https://www.readbyqxmd.com/read/29652303/-respiratory-hypercapnic-hypoxic-training-is-an-effective-component-of-complex-therapy-of-polyneuropathy-in-children-with-diabetes-type-1
#15
K V Smirnov, Yu V Smirnova, V P Kulikov, O M Nazarkina
AIM: To study the effectiveness of respiratory hypercapnic-hypoxic training in complex treatment of neuropathy due to diabetes type 1. MATERIAL AND METHODS: Fifty children, 31 girls and 19 boys, were examined. The inclusion criteria were the presence of polyneuropathy, verified on the basis of clinical data and electromyographic changes. The patients were divided into 2 groups: the main group (n=25, 15 girls and 10 boys, mean age 12.9±1.8 years (M±SD) and the comparison group (n=25, 16 girls and 9 boys, mean age 13...
2018: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/29649674/are-there-clinical-and-neurophysiologic-predictive-factors-for-a-positive-response-to-hf-rtms-in-patients-with-treatment-resistant-depression
#16
Anna Poleszczyk, Maria Rakowicz, Tadeusz Parnowski, Jakub Antczak, Łukasz Święcicki
Better selection of patients with treatment-resistant depression for high-frequency repetitive transcranial magnetic stimulation (HF-rTMS) would make the procedure more efficient. The objective of this study was to search for clinical and neurophysiologic predictors of therapeutic response with a special focus on the bipolar population. Forty patients (30 bipolar) underwent 20 daily sessions of HF-rTMS. Clinical outcome measures included the 21-item Hamilton Depression Rating Scale, the Beck Depression Inventory, the Clinical Global Impression, and the Patient Global Impression...
April 3, 2018: Psychiatry Research
https://www.readbyqxmd.com/read/29643331/electroencephalographic-delta-alpha-frequency-activity-differentiates-psychotic-disorders-a-study-of-schizophrenia-bipolar-disorder-and-methamphetamine-induced-psychotic-disorder
#17
REVIEW
Fleur M Howells, Hendrik S Temmingh, Jennifer H Hsieh, Andrea V van Dijen, David S Baldwin, Dan J Stein
Electroencephalography (EEG) has been proposed as a neurophysiological biomarker to delineate psychotic disorders. It is known that increased delta and decreased alpha, which are apparent in psychosis, are indicative of inappropriate arousal state, which leads to reduced ability to attend to relevant information. On this premise, we investigated delta/alpha frequency activity, as this ratio of frequency activity may serve as an effective neurophysiological biomarker. The current study investigated differences in delta/alpha frequency activity, in schizophrenia (SCZ), bipolar I disorder with psychotic features and methamphetamine-induced psychosis...
April 12, 2018: Translational Psychiatry
https://www.readbyqxmd.com/read/29628943/provocative-testing-prior-to-anterior-cerebral-artery-fusiform-aneurysm-embolization
#18
Pouria Moshayedi, Dan-Victor Giurgiutiu, Andrew F Ducruet, Brian T Jankowitz, Ashutosh P Jadhav
We report 2 cases of parent artery occlusion (PAO) for anterior cerebral artery (ACA) fusiform aneurysm embolization after superselective provocative testing was performed to confirm distal territory viability. The first case involves a patient in the second decade of life who presented with subarachnoid hemorrhage and underwent PAO after a balloon test occlusion in the distal ACA revealed no neurophysiology changes. The second case involves another patient in the forth decade of life who presented with an enlarging pseudoaneurysm and underwent PAO after a sodium amobarbital infusion in the distal ACA revealed no clinical change...
February 2018: Interventional Neurology
https://www.readbyqxmd.com/read/29627716/preserved-somatosensory-discrimination-predicts-consciousness-recovery-in-unresponsive-wakefulness-syndrome
#19
Rossella Spataro, Alexander Heilinger, Brendan Allison, Domenico De Cicco, Santino Marchese, Cesare Gregoretti, Vincenzo La Bella, Christoph Guger
OBJECTIVE: To assess somatosensory discrimination and command following using a vibrotactile P300-based Brain-Computer Interface (BCI) in Unresponsive Wakefulness Syndrome (UWS), and investigate the predictive role of this cognitive process on the clinical outcomes. METHODS: Thirteen UWS patients and six healthy controls each participated in two experimental runs in which they were instructed to count vibrotactile stimuli delivered to the left or right wrist. A BCI determined each subject's task performance based on EEG measures...
March 12, 2018: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29626178/unique-clinical-and-neurophysiologic-profile-of-a-cohort-of-children-with-cmtx3
#20
Manoj Kanhangad, Kayla Cornett, Megan H Brewer, Garth A Nicholson, Monique M Ryan, Robert L Smith, Gopinath M Subramanian, Helen K Young, Stephan Züchner, Marina L Kennerson, Joshua Burns, Manoj P Menezes
OBJECTIVE: To describe in detail the clinical profile of Charcot-Marie-Tooth disease subtype 3 (CMTX3) to aid appropriate genetic testing and rehabilitative therapy. METHODS: We reviewed the clinical and neurophysiologic profile and CMT Pediatric Scale (CMTPedS) assessments of 11 children with CMTX3. RESULTS: Compared with the more common forms of CMT, CMT1A and CMTX, CMTX3 was characterized by early onset with early and progressive hand weakness...
April 6, 2018: Neurology
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