Read by QxMD icon Read

Clinical neurophysiology

Yi-Ming Ren, Xi-Shan Wang, Zhi-Jian Wei, Bao-You Fan, Wei Lin, Xian-Hu Zhou, Shi-Qing Feng
BACKGROUND: Carpal tunnel syndrome (CTS) is a common peripheral nerve entrapment disease. Either surgical or conservative intervention for CTS patients is needed to choose. We conducted this systematic review and meta-analysis to compare the clinical efficacy, safety, and cost of surgical versus nonsurgical intervention. METHODS: The eligible studies were acquired from PubMed, Medline, Embase, Web of Science, Google, and Cochrane Library. The data were extracted by 2 of the coauthors independently and were analyzed by RevMan5...
October 2016: Medicine (Baltimore)
Zulfi Haneef, Sharon Chiang, Holly Rutherford, Arun Antony
INTRODUCTION: Fellowship training in Clinical Neurophysiology (CNP) is often sought following Neurology residency. However, data documenting the reasons for choosing CNP fellowship, and experiences therein, are sparse. METHODS: Current Neurophysiology fellows across the United States participated in a 17-item, internet-based survey. Data regarding demographics, reasons for choosing fellowship, adequacy of training, and future plans were collected. RESULTS: Among respondents (n=49), 84% graduated from a US medical school...
October 5, 2016: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
Maarika Liik, Anna Rostedt Punga
OBJECTIVE: We assessed the diagnostic pattern of repetitive nerve stimulation (RNS) test and concentric electrode (CNE) jitter analysis between patients with generalized myasthenia gravis (GMG) with acute versus slow onset. METHODS: All examinations that established the diagnosis of GMG at the department of Clinical Neurophysiology, Uppsala University Hospital, were retrospectively analyzed from January 2012 to December 2014. Patients were grouped according to disease duration at neurophysiological evaluation: acute onset (<4weeks) or slow onset (⩾4weeks)...
October 3, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
Jin-Gyu Choi, Sang-Woo Ha, Byung-Chul Son
OBJECTIVES: The authors investigated the difference in clinical outcome and the position of paddle lead spinal cord stimulation (SCS) between three-column and five-column paddle lead SCS in patients with FBSS. MATERIALS AND METHODS: In 21 patients who underwent paddle lead SCS at T9 (three-column, n = 9; five-column, n =12) for FBSS, a 12-month follow-up numerical rating scale, percent pain relief, and CT assessment of contact angle and percent reduction of T9 canal area were investigated...
October 12, 2016: World Neurosurgery
Simone Gross, Andrea Fischer, Marco Rosati, Lara Matiasek, Daniele Corlazzoli, Rodolfo Cappello, Laura Porcarelli, Tom Harcourt-Brown, Konrad Jurina, Laurent Garosi, Thomas Flegel, Pia Quitt, Jessica Molin, Velia-Isabel Huelsmeyer, Henning Schenk, Gualtiero Gandini, Kirsten Gnirs, Stéphane Blot, Aurélien Jeandel, Massimo Baroni, Shenja Loderstedt, Gianluca Abbiati, Carola Leithaeuser, Sabine Schulze, Marion Kornberg, Mark Lowrie, Kaspar Matiasek
Recent views on Guillain-Barré syndrome (GBS) question the accuracy of classification into axonal and demyelinating subtypes that represent convergent neurophysiological phenotypes rather than immunological targets. Instead it has been proposed to clarify the primarily affected fibre subunit in nerve biopsies. As nerve biopsies rarely are part of routine work-up in human patients we evaluated tissues taken from companion animals affected by GBS-like polyradiculoneuropathy to screen for distribution of immune cells, targeted fibre components and segregating non-inflammatory lesions...
September 1, 2016: Neuromuscular Disorders: NMD
N M Giannantoni, M Minisci, V Brunetti, E Scarano, E Testani, C Vollono, E De Corso, G Bastanza, L D'Alatri, G Della Marca
Oro-pharyngeal dysphagia is frequently present during the acute phase of stroke. The aim of the present study was to evaluate whether the recording of surface EMG using a nasopharyngeal (NP) electrode could be applied to evaluation of pharyngeal muscle activity in acute stroke patients and if this neurophysiological measure is related with clinical assessment of swallowing. Patients were examined and clinical severity was assessed with the National Institute of Health Stroke Scale (NIHSS) score; dysphagia was evaluated through bedside screening test using the Gugging Swallowing Scale (GUSS)...
August 2016: Acta Otorhinolaryngologica Italica
Nicola Marchili, Eleonora Ortu, Davide Pietropaoli, Ruggero Cattaneo, Annalisa Monaco
Stomatognathic system is strictly correlated to other anatomical regions; many studies investigated relationship between temporomandibular joint and posture, several articles describe cranio-facial pain from dental causes, such as trigger points. Until now less interest has been given to connections between dental occlusion and ophthalmology, even if they are important and involving. Clinical experience in dental practice claims that mandibular latero-deviation is connected both to eye dominance and to defects of ocular convergence...
2016: Open Dentistry Journal
Claudio Del Percio, Wilhelmus Drinkenburg, Susanna Lopez, Francesco Infarinato, Jesper Frank Bastlund, Bettina Laursen, Jan T Pedersen, Ditte Zerlang Christensen, Gianluigi Forloni, Angelisa Frasca, Francesco M Noè, Marina Bentivoglio, Paolo Francesco Fabene, Giuseppe Bertini, Valeria Colavito, Jonathan Kelley, Sophie Dix, Jill C Richardson, Claudio Babiloni
Resting state electroencephalographic (EEG) rhythms reflect the fluctuation of cortical arousal and vigilance in a typical clinical setting, namely the EEG recording for few minutes with eyes closed (i.e., passive condition) and eyes open (i.e., active condition). Can this procedure be back-translated to C57 (wild type) mice for aging studies? On-going EEG rhythms were recorded from a frontoparietal bipolar channel in 85 (19 females) C57 mice. Male mice were subdivided into 3 groups: 25 young (4.5-6 months), 18 middle-aged (12-15 months), and 23 old (20-24 months) mice to test the effect of aging...
September 15, 2016: Neurobiology of Aging
Jennifer M Buchman-Schmitt, Sarah J Brislin, Noah C Venables, Thomas E Joiner, Christopher J Patrick
BACKGROUND: The RDoC matrix framework calls for investigation of mental health problems through analysis of core biobehavioral processes quantified and studied across multiple domains of measurement. Critics have raised concerns about RDoC, including overemphasis on biological concepts/measures and disregard for the principle of multifinality, which holds that identical biological predispositions can give rise to differing behavioral outcomes. The current work illustrates an ontogenetic process approach to addressing these concerns, focusing on biobehavioral traits corresponding to RDoC constructs as predictors, and suicidal behavior as the outcome variable...
October 1, 2016: Journal of Affective Disorders
Cui Su, Zhenhu Liang, Xiaoli Li, Duan Li, Yongwang Li, Mauro Ursino
OBJECTIVE: Multiscale permutation entropy (MSPE) is becoming an interesting tool to explore neurophysiological mechanisms in recent years. In this study, six MSPE measures were proposed for on-line depth of anesthesia (DoA) monitoring to quantify the anesthetic effect on the real-time EEG recordings. The performance of these measures in describing the transient characters of simulated neural populations and clinical anesthesia EEG were evaluated and compared. METHODS: Six MSPE algorithms-derived from Shannon permutation entropy (SPE), Renyi permutation entropy (RPE) and Tsallis permutation entropy (TPE) combined with the decomposition procedures of coarse-graining (CG) method and moving average (MA) analysis-were studied...
2016: PloS One
Y E M Dreissen, D C Cath, M A J Tijssen
Functional jerks are among the most common functional movement disorders. The diagnosis of functional jerks is mainly based on neurologic examination revealing specific positive clinical signs. Differentiation from other jerky movements, such as tics, organic myoclonus, and primary paroxysmal dyskinesias, can be difficult. In support of a functional jerk are: acute onset in adulthood, precipitation by a physical event, variable, complex, and inconsistent phenomenology, suggestibility, distractibility, entrainment and a Bereitschaftspotential preceding the movement...
2017: Handbook of Clinical Neurology
J Stone, S Aybek
Functional (psychogenic) limb weakness describes genuinely experienced limb power or paralysis in the absence of neurologic disease. The hallmark of functional limb weakness is the presence of internal inconsistency revealing a pattern of symptoms governed by abnormally focused attention. In this chapter we review the history and epidemiology of this clinical presentation as well as its subjective experience highlighting the detailed descriptions of authors at the end of the 19th and early 20th century. We discuss the relevance that physiological triggers such as injury and migraine and psychophysiological events such as panic and dissociation have to understanding of mechanism and treatment...
2017: Handbook of Clinical Neurology
M-P Stenner, P Haggard
Patients with functional movement disorders (FMD) experience movements as involuntary that share fundamental characteristics with voluntary actions. This apparent paradox raises questions regarding the possible sources of a subjective experience of action. In addition, it poses a yet unresolved diagnostic challenge, namely how to describe or even quantify this experience in a scientifically and clinically useful way. Here, we describe recent experimental approaches that have shed light on the phenomenology of action in FMD...
2017: Handbook of Clinical Neurology
Claudio Babiloni, Alfredo Pennica, Paolo Capotosto, Paolo Onorati, Chiara Muratori, Stefano Ferracuti, Paolo Roma, Valentina Correr, Elisa Piccinni, Giuseppe Noce, Claudio Del Percio, Susanna Cordone, Cristina Limatola, Andrea Soricelli, Francesco Di Campli, Laura Gianserra, Lorenzo Ciullini, Antonio Aceti, Magdalena Viscione, Elisabetta Teti, Loredana Sarmati, Massimo Andreoni
OBJECTIVE: Cortical sources of electroencephalographic (EEG) rhythms were investigated in two sub-populations of naïve HIV subjects, grouped based on clinical criteria to receive different combination anti-retroviral therapies (cARTs). These EEG sources were hypothesized to reflect beneficial effects of both regimes. METHODS: Eyes-closed resting state EEG data were collected in 19 (Group A) and 39 (Group B) naïve HIV subjects at baseline (i.e. pre-treatment; T0) and after 5months of cART (T5)...
September 9, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
Oluwaseun Akeju, Seong-Eun Kim, Rafael Vazquez, James Rhee, Kara J Pavone, Lauren E Hobbs, Patrick L Purdon, Emery N Brown
An improved understanding of the neural correlates of altered arousal states is fundamental for precise brain state targeting in clinical settings. More specifically, electroencephalogram recordings are now increasingly being used to relate drug-specific oscillatory dynamics to clinically desired altered arousal states. Dexmedetomidine is an anesthetic adjunct typically administered in operating rooms and intensive care units to produce and maintain a sedative brain state. However, a high-density electroencephalogram characterization of the neural correlates of the dexmedetomidine-induced altered arousal state has not been previously accomplished...
2016: PloS One
Harsh V Gupta, John N Caviness
BACKGROUND: Myoclonus may occur after hypoxia. In 1963, Lance and Adams described persistent myoclonus with other features after hypoxia. However, myoclonus occurring immediately after hypoxia may demonstrate different syndromic features from classic Lance-Adams syndrome (LAS). The aim of this review is to provide up-to-date information about the spectrum of myoclonus occurring after hypoxia with emphasis on neurophysiological features. METHODS: A literature search was performed on PubMed database from 1960 to 2015...
2016: Tremor and Other Hyperkinetic Movements
Jumpei Matsumoto, Hiroshi Nishimaru, Yusaku Takamura, Susumu Urakawa, Taketoshi Ono, Hisao Nishijo
Although, clinical studies reported hyperactivation of the auditory system and amygdala in patients with auditory hallucinations (hearing others' but not one's own voice, independent of any external stimulus), neural mechanisms of self/other attribution is not well understood. We recorded neuronal responses in the dorsal amygdala including the lateral amygdaloid nucleus to ultrasonic vocalization (USVs) emitted by subjects and conspecifics during free social interaction in 16 adult male rats. The animals emitting the USVs were identified by EMG recordings...
2016: Frontiers in Neuroscience
M Merino-Andreu, A Alvarez-Ruiz de Larrinaga, J A Madrid-Perez, M A Martinez-Martinez, F J Puertas-Cuesta, A J Asencio-Guerra, O Romero Santo-Tomas, M J Jurado-Luque, F J Segarra-Isern, T Canet-Sanz, P Gimenez-Rodriguez, J Teran-Santos, M L Alonso-Alvarez, D Garcia-Borreguero Diaz-Varela, B Barriuso-Esteban
One of the main objectives of the Spanish Sleep Society is to promote healthy sleep in both the general population and in health professionals. This document aims to conduct a review of the current scientific literature on sleep habits that can serve as the basis on which to establish a set of general recommendations, regarding healthy sleep, for use by the general population in Spain as well as to identify the main challenges faced by research into sleep habits. The document has been developed by a multidisciplinary team made up of members of the Spanish Sleep Society who are experts in paediatric sleep medicine, clinical neurophysiology, pulmonology, neurology, chronobiology, physiology and psychology...
October 3, 2016: Revista de Neurologia
Maryam Abbaszadeh-Amirdehi, Noureddin Nakhostin Ansari, Soofia Naghdi, Gholamreza Olyaei, Mohammad Reza Nourbakhsh
BACKGROUND: Active myofascial trigger points (MTrPs) are major pain generators in myofascial pain syndrome. Dry needling (DN) is an effective method for the treatment of MTrPs. OBJECTIVE: To assess the immediate neurophysiological and clinical effects of DN in patients with upper trapezius MTrPs. METHODS: This was a prospective, clinical trial study of 20 patients with upper trapezius MTrPs and 20 healthy volunteers (matched for height, weight, body mass index and age), all of whom received one session of DN...
October 3, 2016: Acupuncture in Medicine: Journal of the British Medical Acupuncture Society
Keith A Vossel, Kamalini G Ranasinghe, Alexander J Beagle, Danielle Mizuiri, Susanne M Honma, Anne F Dowling, Sonja M Darwish, Victoria Van Berlo, Deborah E Barnes, Mary Mantle, Anna M Karydas, Giovanni Coppola, Erik D Roberson, Bruce L Miller, Paul A Garcia, Heidi E Kirsch, Lennart Mucke, Srikantan S Nagarajan
OBJECTIVE Seizures are more frequent in patients with Alzheimer's disease (AD) and can hasten cognitive decline. However, the incidence of subclinical epileptiform activity in AD and its consequences are unknown. Motivated by results from animal studies, we hypothesized higher than expected rates of subclinical epileptiform activity in AD with deleterious effects on cognition. METHODS We prospectively enrolled 33 patients (mean age 62 years) who met criteria for AD, but had no history of seizures, and 19 age-matched, cognitively normal controls...
October 1, 2016: Annals of Neurology
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"