keyword
MENU ▼
Read by QxMD icon Read
search

Quantitative eeg

keyword
https://www.readbyqxmd.com/read/28110410/neurophysiological-assessment-of-brain-dysfunction-in-critically-ill-patients-an-update
#1
REVIEW
Eric Azabou, Catherine Fischer, Jean Michel Guerit, Djillali Annane, François Mauguiere, Fréderic Lofaso, Tarek Sharshar
The aim of this review was to provide up-to-date information about the usefulness of clinical neurophysiology testing in the management of critically ill patients. Evoked potentials (EPs) and electroencephalogram (EEG) are non-invasive clinical neurophysiology tools that allow an objective assessment of the central nervous system's function at the bedside in intensive care unit (ICU). These tests are quite useful in diagnosing cerebral complications, and establishing the vital and functional prognosis in ICU...
January 21, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28109794/mir-29a-expressions-in-peripheral-blood-mononuclear-cell-and-cerebrospinal-fluid-diagnostic-value-in-patients-with-pediatric-tuberculous-meningitis
#2
Deng Pan, Miao Pan, Yu-Ming Xu
To evaluate the value of miR-29a expression in peripheral blood mononuclear cell (PBMC) and cerebrospinal fluid (CSF) in the diagnosis of pediatric tuberculous meningitis (TBM). Our study enrolled 112 children with TBM and 130 healthy children, from which PBMC and CSF were collected. The quantitative real-time polymerase chain reaction (qRT-PCR) was used to measure the expression of miR-29a in PBMC and CSF, and then analyze the diagnostic value. Compared with control group, the miR-29a expressions in PBMC and CSF were increased in TBM children (both P <0...
January 18, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28099139/quantitative-eeg-in-obstructive-sleep-apnea-syndrome-a-review-of-the-literature
#3
Szilvia Puskás, Norbert Kozák, Dóra Sulina, László Csiba, Mária Tünde Magyar
Obstructive sleep apnea syndrome (OSAS) is characterized by the recurrent cessation (apnea) or reduction (hypopnea) of airflow due to the partial or complete upper airway collapse during sleep. Respiratory disturbances causing sleep fragmentation and repetitive nocturnal hypoxia are responsible for a variety of nocturnal and daytime complaints of sleep apnea patients, such as snoring, daytime sleepiness, fatigue, or impaired cognitive functions. Different techniques, such as magnetic resonance imaging, magnetic resonance spectroscopy, and positron emission tomography, are used to evaluate the structural and functional changes in OSAS patients...
January 18, 2017: Reviews in the Neurosciences
https://www.readbyqxmd.com/read/28079758/concussion-in-ice-hockey-current-gaps-and-future-directions-in-an-objective-diagnosis
#4
Aynsley M Smith, Michael J Stuart, William O Roberts, David W Dodick, Jonathan T Finnoff, Janelle K Jorgensen, David A Krause
OBJECTIVE: This review provides an update on sport-related concussion (SRC) in ice hockey and makes a case for changes in clinical concussion evaluation. Standard practice should require that concussions be objectively diagnosed and provide quantitative measures of the concussion injury that will serve as a platform for future evidence-based treatment. METHODS: The literature was surveyed to address several concussion-related topics: research in ice hockey-related head trauma, current subjective diagnosis, promising components of an objective diagnosis, and current and potential treatments...
January 10, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28073596/quantitative-eeg-during-normal-aging-association-with-the-alzheimer-s-disease-genetic-risk-variant-in-picalm-gene
#5
Natalya V Ponomareva, Tatiana V Andreeva, Maria S Protasova, Lef I Shagam, Daria D Malina, Andrey Yu Goltsov, Vitaly F Fokin, Sergey N Illarioshkin, Evgeny I Rogaev
Genome-wide association studies have identified novel risk variants for Alzheimer's disease (AD). Among these, a gene carrying one of the highest risks for AD is PICALM. The PICALM rs3851179 A allele is thought to have a protective effect, whereas the G allele appears to confer risk for AD. The influence of the PICALM genotype on brain function in nondemented subjects remains largely unknown. We examined the possible effect of the PICALM rs3851179 genotype on quantitative electroencephalography recording at rest in 137 nondemented volunteers (age range: 20-79 years) subdivided into cohorts of those younger than and those older than 50 years of age...
December 20, 2016: Neurobiology of Aging
https://www.readbyqxmd.com/read/28070124/an-endophenotype-approach-to-the-genetics-of-alcohol-dependence-a-genome-wide-association-study-of-fast-beta-eeg-in-families-of-african-ancestry
#6
J L Meyers, J Zhang, J C Wang, J Su, S I Kuo, M Kapoor, L Wetherill, S Bertelsen, D Lai, J E Salvatore, C Kamarajan, D Chorlian, A Agrawal, L Almasy, L Bauer, K K Bucholz, G Chan, V Hesselbrock, L Koganti, J Kramer, S Kuperman, N Manz, A Pandey, M Seay, D Scott, R E Taylor, D M Dick, H J Edenberg, A Goate, T Foroud, B Porjesz
Fast beta (20-28 Hz) electroencephalogram (EEG) oscillatory activity may be a useful endophenotype for studying the genetics of disorders characterized by neural hyperexcitability, including substance use disorders (SUDs). However, the genetic underpinnings of fast beta EEG have not previously been studied in a population of African-American ancestry (AA). In a sample of 2382 AA individuals from 482 families drawn from the Collaborative Study on the Genetics of Alcoholism (COGA), we performed a genome-wide association study (GWAS) on resting-state fast beta EEG power...
January 10, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28062149/prediction-of-neonatal-seizures-in-hypoxic-ischemic-encephalopathy-using-electroencephalograph-power-analyses
#7
Siddharth V Jain, Amit Mathur, Preethi Srinivasakumar, Michael Wallendorf, Joseph P Culver, John M Zempel
BACKGROUND: The severity of the initial encephalopathy in neonatal hypoxic-ischemic encephalopathy correlates with seizure burden. Early electroencephalograph (EEG) background activity reflects the severity of encephalopathy. Thus, we hypothesized that early EEG background would be predictive of subsequent seizures in neonatal hypoxic-ischemic encephalopathy. METHODS: This study included infants undergoing therapeutic hypothermia at St. Louis Children's Hospital between January 2009 and April 2013...
November 11, 2016: Pediatric Neurology
https://www.readbyqxmd.com/read/28058208/quantitative-eeg-in-attention-deficit-hyperactivity-disorder-a-companion-payment-policy-review-for-clinicians-and-payers
#8
Marc R Nuwer, Jeffrey Buchhalter, Katie M Shepard
Quantitative EEG measurement of the scalp vertex theta/beta ratio (TBR) is marketed as a tool for use in the evaluation of patients who may have attention-deficit/hyperactivity disorder (ADHD). The American Academy of Neurology (AAN) recently assessed the literature about this tool. The assessment urged caution, considering that the TBR remains an investigational research tool at this time. This perspective comments further on that assessment and its rationale, and recommends a perspective for the clinician and payer...
December 2016: Neurology. Clinical Practice
https://www.readbyqxmd.com/read/28054328/magnetoencephalography-and-new-imaging-modalities-in-epilepsy
#9
REVIEW
Jessica Falco-Walter, Christian Owen, Mishu Sharma, Christopher Reggi, Mandy Yu, Travis R Stoub, Michael A Stein
The success of epilepsy surgery is highly dependent on correctly identifying the entire epileptogenic region. Current state-of-the-art for localizing the extent of surgically amenable areas involves combining high resolution three-dimensional magnetic resonance imaging (MRI) with electroencephalography (EEG) and magnetoencephalography (MEG) source modeling of interictal epileptiform activity. Coupling these techniques with newer quantitative structural MRI techniques, such as cortical thickness measurements, however, may improve the extent to which the abnormal epileptogenic region can be visualized...
January 4, 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/28045857/quantitative-eeg-after-brain-stimulation-and-cognitive-training-in-alzheimer-disease
#10
Revital Gandelman-Marton, Sergio Aichenbaum, Evgenya Dobronevsky, Michael Khaigrekht, Jose M Rabey
PURPOSE: Medications are the currently accepted symptomatic treatment of Alzheimer disease (AD), but their impact on delaying the progression of cognitive deficits and functional impairment is limited. The authors aimed to explore long-term electrophysiological effects of repetitive transcranial magnetic stimulation interlaced with cognitive training on quantitative electroencephalography (EEG) in patients with AD. METHODS: Quantitative EEG was assessed on non-repetitive transcranial magnetic stimulation interlaced with cognitive training treatment days before treatment and after each treatment phase in seven patients with mild AD...
January 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/28030933/event-related-potentials-erp-and-sgip1-gene-polymorphisms-in-alcoholics-relation-to-family-history-of-alcoholism-and-drug-usage
#11
Roman Chwedorowicz, Grzegorz Raszewski, Lucyna Kapka-Skrzypczak, Krzysztof Sawicki, Tadeusz Studziński
OBJECTIVE: The electrophysiological characteristics may serve as valuable biomarkers for the genetic vulnerability underlying alcoholism. The purpose of this study was to evaluate the potential associations between single nucleotide polymorphisms (SNPs) located in the SGIP1 gene and the theta ERP quantitative traits. METHOD: The theta band (4-7 Hz) visual ERP occurring in the P300 response in the resting EEG were examined to explore the electrophysiological effects of alcohol on the brain in five regions: frontal, central, parietal, temporal and occipital in patients with alcohol addiction...
23, 2016: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/28030932/usage-of-perioperative-anxiety-neuromarker-for-improving-the-quality-of-life-of-a-patient-operated-on-for-critical-stenosis-of-the-internal-carotid-artery
#12
Mariusz Trystuła, Paweł Półrola, Juri Kropotov
OBJECTIVE: The aim of the study was to find a neuromarker of perioperative anxiety in a patient with critical carotid stenosis through the use of neuromarkers in Quantitative EEG (QEEG) and Event Related Potentials (ERPs). The indirect purpose of the research was evaluation of improvement in the patient's quality of life. CASE STUDY: A 45-year-old woman was admitted to the Department of Vascular Surgery and Endovascular Interventions at the John Paul II Hospital in Krakow, with the diagnosis of critical internal carotid stenosis (over 80%), confirmed by Doppler Ultrasound and Angio-CT examinations...
23, 2016: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/28027874/deep-brain-stimulation-of-the-anterior-nucleus-of-the-thalamus-reverses-the-gene-expression-of-cytokines-and-their-receptors-as-well-as-neuronal-degeneration-in-epileptic-rats
#13
Ying-Chuan Chen, Guan-Yu Zhu, Xiu Wang, Lin Shi, Yin Jiang, Xin Zhang, Jian-Guo Zhang
BACKGROUND: Deep brain stimulation of the anterior nucleus of the thalamus (ANT-DBS) is effective in seizure control. However, the mechanisms remain unclear. METHODS: Sixty-four rats were randomly assigned to the control group, the kainic acid (KA) group, the sham-DBS group and the DBS group. Video-electroencephalogram (EEG) was used to monitor seizures. Quantitative real time PCR (qPCR) was applied for detecting interleukin-1 beta (IL-1β), IL-1 receptor (IL-1R), IL-6, IL-6 receptor (IL-6R), gp130, tumor necrosis factor-alpha (TNF-α), TNF-receptor 1 (TNF-R1) and TNF-receptor 2 (TNF-R2) expression 12 hours after the establishment of an epileptic model...
December 24, 2016: Brain Research
https://www.readbyqxmd.com/read/28018852/the-delta-between-postoperative-seizure-freedom-and-persistence-automatically-detected-focal-slow-waves-after-epilepsy-surgery
#14
Margit Schönherr, Hermann Stefan, Hajo M Hamer, Karl Rössler, Michael Buchfelder, Stefan Rampp
OBJECTIVE: In this study, we use a novel automated method for localization and quantitative comparison of magnetoencephalographic (MEG) delta activity in patients with and without recurrent seizures after epilepsy surgery as well as healthy controls. METHODS: We identified the generators of delta activity by source location in frequency domain between 1 and 4 Hz in spontaneous MEG data. Comparison with healthy control subjects by z-transform emphasized relative changes of activation in patients...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28011172/wake-sleep-and-cardiovascular-regulatory-changes-in-rats-made-obese-by-a-high-fat-diet
#15
Marco Luppi, Abed A Al-Jahmany, Flavia Del Vecchio, Matteo Cerri, Alessia Di Cristoforo, Timna Hitrec, Davide Martelli, Emanuele Perez, Giovanni Zamboni, Roberto Amici
Obesity is known to be associated with alterations in wake-sleep (WS) architecture and cardiovascular parameters. This study was aimed at assessing the possible influence of diet-induced obesity (DIO) on sleep homeostasis and on the WS state-dependent levels of arterial pressure (AP) and heart rate in the rat. Two groups of age-matched Sprague-Dawley rats were fed either a high-fat hypercaloric diet, leading to DIO, or a normocaloric standard diet (lean controls) for 8 weeks. While under general anesthesia, animals were implanted with instrumentation for the recording of electroencephalogram, electromyogram, arterial pressure, and deep brain temperature...
December 21, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27974864/comparative-lateralizing-ability-of-multimodality-mri-in-temporal-lobe-epilepsy
#16
Karabekir Ercan, Hediye Pinar Gunbey, Erhan Bilir, Elcin Zan, Halil Arslan
Purpose. The objective is to compare lateralizing ability of three quantitative MR (qMRI) modalities to depict changes of hippocampal architecture with clinical entities in temporal lobe epilepsy. Methods. We evaluated 14 patients with clinical and EEG proven diagnosis of unilateral TLE and 15 healthy volunteers. T1-weighted 3D dataset for volumetry, single-voxel (1)H MR spectroscopy (MRS), and diffusion tensor imaging (DTI) were performed for bilateral hippocampi of all subjects. Results. Individual volumetric measurements provided accurate lateralization in 85% of the patients, spectroscopy in 57%, and DTI in 57%...
2016: Disease Markers
https://www.readbyqxmd.com/read/27965619/dynamic-changes-in-spectral-and-spatial-signatures-of-high-frequency-oscillations-in-rat-hippocampi-during-epileptogenesis-in-acute-and-chronic-stages
#17
Pan-Pan Song, Jing Xiang, Li Jiang, Heng-Sheng Chen, Ben-Ke Liu, Yue Hu
OBJECTIVE: To analyze spectral and spatial signatures of high frequency oscillations (HFOs), which include ripples and fast ripples (FRs, >200 Hz) by quantitatively assessing average and peak spectral power in a rat model of different stages of epileptogenesis. METHODS: The lithium-pilocarpine model of temporal lobe epilepsy was used. The acute phase of epilepsy was assessed by recording intracranial electroencephalography (EEG) activity for 1 day after status epilepticus (SE)...
2016: Frontiers in Neurology
https://www.readbyqxmd.com/read/27965571/increase-of-eeg-spectral-theta-power-indicates-higher-risk-of-the-development-of-severe-cognitive-decline-in-parkinson-s-disease-after-3-years
#18
Vitalii V Cozac, Menorca Chaturvedi, Florian Hatz, Antonia Meyer, Peter Fuhr, Ute Gschwandtner
Objective: We investigated quantitative electroencephalography (qEEG) and clinical parameters as potential risk factors of severe cognitive decline in Parkinson's disease. Methods: We prospectively investigated 37 patients with Parkinson's disease at baseline and follow-up (after 3 years). Patients had no severe cognitive impairment at baseline. We used a summary score of cognitive tests as the outcome at follow-up. At baseline we assessed motor, cognitive, and psychiatric factors; qEEG variables [global relative median power (GRMP) spectra] were obtained by a fully automated processing of high-resolution EEG (256-channels)...
2016: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/27941960/gender-differences-in-quantitative-electroencephalogram-during-a-simple-hand-movement-task-in-young-adults
#19
Jessica Cantillo-Negrete, Rubén Isaac Carino-Escobar, Paul Carrillo-Mora, Teodoro Bernardo Flores-Rodríguez, David Elías-Vinas, Josefina Gutiérrez-Martínez
BACKGROUND: No consensus has been reached regarding the existence of gender differences during motor tasks in electroencephalography. This could lead to misinterpretation of electroencephalography clinical diagnosis and affect the calibration of brain-computer interfaces. OBJECTIVE: To assess whether there are statistically significant gender differences in electroencephalography recorded during hand movements. METHODS: Electroencephalography data were recorded from 18 women and 18 men while performing hand movements and rest...
September 2016: Revista de Investigación Clínica; Organo del Hospital de Enfermedades de la Nutrición
https://www.readbyqxmd.com/read/27922904/utilization-of-quantitative-eeg-trends-for-critical-care-continuous-eeg-monitoring-a-survey-of-neurophysiologists
#20
Christa B Swisher, Saurabh R Sinha
PURPOSE: Quantitative EEG (QEEG) can be used to assist with review of large amounts of data generated by critical care continuous EEG monitoring. This study aimed to identify current practices regarding the use of QEEG in critical care continuous EEG monitoring of critical care patients. METHODS: An online survey was sent to 796 members of the American Clinical Neurophysiology Society (ACNS), instructing only neurophysiologists to participate. RESULTS: The survey was completed by 75 neurophysiologists that use QEEG in their practice...
December 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
keyword
keyword
69068
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"