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Neurophysiologie Clinique, Clinical Neurophysiology

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https://www.readbyqxmd.com/read/28844760/template-operated-mup-analysis-is-not-accurate-in-the-diagnosis-of-myopathic-or-neuropathic-changes-in-the-diaphragm
#1
Lea Leonardis, Simon Podnar
OBJECTIVES: The aim of this study was to evaluate the quantitative motor unit potential (MUP) analysis in the diagnosis of myopathy and neuropathy of the diaphragm. METHODS: Diaphragm template-operated quantitative EMG were performed in 30 patients with myotonic dystrophy type 1 (DM1), 17 with myotonic dystrophy type 2 (DM2) and 40 with amyotrophic lateral sclerosis (ALS). RESULTS: Low MUP amplitude precluded MUP analysis in 21% of DM1 patients...
August 24, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28784338/evaluation-of-neuromuscular-tone-phenotypes-in-children-with-autism-spectrum-disorder-an-exploratory-study
#2
Aude Paquet, Bertrand Olliac, Bernard Golse, Laurence Vaivre-Douret
OBJECTIVE: Motor disorders are known in autism spectrum disorder (ASD), but muscle tone assessments are rarely performed. Muscle tone underpins movement. We investigated muscle tone in 34 ASD children using a standardized neuro-developmental battery, which uses the French norms for muscular tone in children. METHODS: Dangling and extensibility were used to examine passive muscle tone in the upper and lower limbs and the body axis. A comparison between muscles of the right and left sides enabled the determination of tonic laterality...
August 4, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28780193/is-brain-computed-tomography-combined-with-somatosensory-evoked-potentials-useful-in-the-prediction-of-brain-death-after-cardiac-arrest
#3
Maenia Scarpino, Giovanni Lanzo, Francesco Lolli, Marco Moretti, Riccardo Carrai, Maria Luisa Migliaccio, Maddalena Spalletti, Manuela Bonizzoli, Adriano Peris, Aldo Amantini, Antonello Grippo
BACKGROUND: Brain death (BD) in coma after cardiac arrest (CA) is difficult to predict. Basal ganglia gray matter/white matter (GM/WM) ratio density and somatosensory evoked potentials (SEPs) may differentiate patients evolving toward BD. METHODS: We used SEPs and brain computed tomography (CT) after coma onset, within the first 24hours. RESULTS: Of the 160 patients included in the study, 22 (14%) evolved toward BD. SEP patterns predicted BD (ROC area=0...
August 2, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28736099/selective-anterior-interosseous-nerve-conduction-study-coaxial-needle-versus-surface-electrode-recordings
#4
Paul Seror
OBJECTIVES: The aim is to determine which method provides the most selective motor nerve conduction of the anterior interosseous nerve (AIN), when the stimulation cannot be restricted to this nerve. METHODS: The AIN was stimulated at the elbow, along with the whole median nerve. The motor action potential (MAP) of the AIN was recorded with 2 different methods: 1 - a coaxial needle inserted in the pronator quadratus muscle (PQ); 2 - a pair of surface electrodes fixed on the PQ...
July 20, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28734554/serial-electrophysiological-studies-using-transcranial-magnetic-stimulation-and-blink-reflex-demonstrating-demyelinating-origin-of-isolated-facial-diplegia-subtype-of-guillain-barr%C3%A3-syndrome
#5
LETTER
Anca Loredana Alungulese, José Luis Muñoz Blanco, Irene Catalina Álvarez, Alfredo Traba López
No abstract text is available yet for this article.
July 19, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28528745/measurement-of-electrochemical-conductance-of-penile-skin-using-sudoscan-%C3%A2-a-new-tool-to-assess-neurogenic-impotence
#6
Jean-Pascal Lefaucheur
OBJECTIVES: To investigate the value of electrochemical skin conductance (ESC) measurement at penile level using Sudoscan(®) for the diagnosis of neurogenic impotence in diabetics. METHODS: The following neurophysiological parameters were assessed in 25 male diabetics who complained of impotence and 25 age-matched normal male subjects without erectile dysfunction (age range: 29-70 years): ESC, sympathetic skin responses (SSR), warm detection thresholds (WDT), and cold detection thresholds (CDT) for the penis and the feet, vibration detection thresholds (VDT) for the penis, and sensory nerve conduction study of the dorsal nerve of the penis (DNP) with sensory nerve action potential (SNAP) recording...
June 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28571630/occipital-transcranial-magnetic-stimulation-discriminates-transient-neurological-symptoms-of-vascular-origin-from-migraine-aura-without-headache
#7
Gilles Naeije, Yannick Fogang, Noémie Ligot, Nicolas Mavroudakis
OBJECTIVES: The diagnosis of transient neurological attacks (TNA) relies on medical history. Transient ischemic attack is often considered until proven otherwise, because of lack of objective paraclinical tools that can help discriminate TIA from differential diagnoses such as migraine aura. This may lead to needless and potentially harmful stroke secondary prevention in many cases. This study aimed at determining the yield of occipital transcranial magnetic stimulation (oTMS) in discriminating TNA of vascular origin from migraine aura without headache (MAWH)...
May 29, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28479260/cortical-excitability-changes-a-mirror-to-the-natural-history-of-multiple-sclerosis
#8
EDITORIAL
Samar S Ayache, Moussa A Chalah
No abstract text is available yet for this article.
May 4, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28479259/physical-activity-limits-the-effects-of-age-and-alzheimer-s-disease-on-postural-control
#9
Lola Debove, Noelle Bru, Martine Couderc, Frederic Noé, Thierry Paillard
The aim was to study the possible influence of physical activity on the postural performance of subjects with Alzheimer's disease (AD). The postural performance (i.e. surface area of the center of foot pressure displacement) of 3 groups was compared: Alzheimer active group (AA), Alzheimer non-active group (ANA) and healthy non-active group (HNA). The AA group's postural performance was superior to that of the ANA and HNA groups. AD disturbed postural performance but participation in regular physical activity made it possible to limit the disturbing effects of AD to a surprising extent, since the postural performance of active AD subjects was also superior to that of healthy subjects...
May 4, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28434551/neuromuscular-fatigue-during-exercise-methodological-considerations-etiology-and-potential-role-in-chronic-fatigue
#10
REVIEW
Rosie Twomey, Saied Jalal Aboodarda, Renata Kruger, Susan Nicole Culos-Reed, John Temesi, Guillaume Y Millet
The term fatigue is used to describe a distressing and persistent symptom of physical and/or mental tiredness in certain clinical populations, with distinct but ultimately complex, multifactorial and heterogenous pathophysiology. Chronic fatigue impacts on quality of life, reduces the capacity to perform activities of daily living, and is typically measured using subjective self-report tools. Fatigue also refers to an acute reduction in the ability to produce maximal force or power due to exercise. The classical measurement of exercise-induced fatigue involves neuromuscular assessments before and after a fatiguing task...
April 20, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28416274/fatigue-in-multiple-sclerosis-insights-into-evaluation-and-management
#11
REVIEW
Samar S Ayache, Moussa A Chalah
Multiple sclerosis (MS) is a chronic inflammatory and neurodegenerative disease of the central nervous system, characterized by the accumulation of numerous neurological symptoms and signs throughout its course. Fatigue is one of the most distressing complaints that MS patients may experience over their lifetime. In spite of its high prevalence, the pathophysiology of MS fatigue is far from being fully elucidated and a constellation of mechanisms seems implicated in this setting. Several factors could contribute to its development and/or exacerbation, and this requires a careful workup in order to search for all possible underlying causes, such as sleep disturbances, endocrine dysfunction and mood disorders, to cite a few...
April 14, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28410876/the-treatment-of-fatigue-by-non-invasive-brain-stimulation
#12
REVIEW
Jean-Pascal Lefaucheur, Moussa A Chalah, Alaa Mhalla, Ulrich Palm, Samar S Ayache, Veit Mylius
The use of non-invasive brain neurostimulation (NIBS) techniques to treat neurological or psychiatric diseases is currently under development. Fatigue is a commonly observed symptom in the field of potentially treatable pathologies by NIBS, yet very little data has been published regarding its treatment. We conducted a review of the literature until the end of February 2017 to analyze all the studies that reported a clinical assessment of the effects of NIBS techniques on fatigue. We have limited our analysis to repetitive transcranial magnetic stimulation (rTMS) and transcranial direct current stimulation (tDCS)...
April 11, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28392007/exercise-sleep-and-cancer-related-fatigue-are-they-related
#13
REVIEW
Mary E Medysky, John Temesi, Susan Nicole Culos-Reed, Guillaume Y Millet
Cancer-related fatigue (CRF) is a commonly reported and debilitating side effect of cancer and/or cancer treatment. Sleep disorders are also highly reported in the cancer population; however it is unknown if sleep is associated with fatigue. In the general population, exercise has been shown to improve sleep, however in the cancer population this idea is under investigation. The primary purposes of this review were to: (i) review the prevalence and causes of sleep disorders in cancer patients and survivors, (ii) examine the relationship between sleep and CRF and (iii) review the impact of exercise interventions on sleep in cancer patients and survivors...
April 5, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28478844/how-can-clinical-neurophysiology-help-in-studying-fatigue
#14
EDITORIAL
Jean-Michel Guerit
No abstract text is available yet for this article.
April 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28410877/chronic-fatigue-syndrome-and-the-immune-system-where-are-we-now
#15
REVIEW
Fane Kojo Fosu Mensah, Amolak Singh Bansal, Brian Ford, Geraldine Cambridge
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is characterised by multiple symptoms including fatigue, headaches and cognitive impairment, which have a significantly adverse effect on the normal functioning and well-being of the individual. These symptoms are often triggered or worsened following physical or mental exertion. ME/CFS has long been thought of as having a significant immunological component, but reports describing changes in immune function are often inconsistent between study groups...
April 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28318816/use-of-electromyography-to-optimize-lokomat-%C3%A2-settings-for-subject-specific-gait-rehabilitation-in-post-stroke-hemiparetic-patients-a-proof-of-concept-study
#16
Yosra Cherni, Mickael Begon, Hicham Chababe, Florent Moissenet
OBJECTIVES: While generic protocols exist for gait rehabilitation using robotic orthotics such as the Lokomat(®), several settings - guidance, body-weight support (BWS) and velocity - may be adjusted to individualize patient training. However, no systematic approach has yet emerged. Our objective was to assess the feasibility and effects of a systematic approach based on electromyography to determine subject-specific settings with application to the strengthening of the gluteus maximus muscle in post-stroke hemiparetic patients...
March 16, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28314522/increased-photosensitivity-following-short-sleep-in-sleep-deprived-patients
#17
Ayşe Deniz Elmalı, Hatice Kurucu, Özdem Ertürk Çetin, Özlem Çokar, Zeliha Matur, Ayşin Dervent, Gülçin Benbir Şenel, Candan Gürses, Veysi Demirbilek
INTRODUCTION: We aimed to determine the effect of short day-time sleep on photoparoxysmal epileptic activity in sleep-deprived patients. METHODS: We retrospectively reviewed video-EEG recordings performed between 2003 and 2015. All recordings following at least four hours of sleep deprivation, including intermittent photic stimulation (IPS) both before and after sleep with any form of epileptiform activity were included. The study group was divided into four subgroups: (1) no photoparoxysmal response (PPR) group, with epileptiform activities other than PPRs; (2) increment group, with PPR duration increased by ≥200% after vs...
March 14, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28314521/orienting-reaction-may-help-recognition-of-patients-with-psychogenic-nonepileptic-seizures
#18
Murat Yalçın, Evrim Tellioğlu, Ayşegül Gündüz, Mine Özmen, Naz Yeni, Çiğdem Özkara, Meral E Kiziltan
OBJECTIVE: Psychogenic nonepileptic seizures (PNES) are abrupt, paroxysmal changes in behavior or consciousness that may phenomenologically resemble epileptic seizures. Given the known association between anxiety and PNES, we hypothesized that in these subjects there may be evidence that the nervous system is hypersensitive to external stimuli. We aimed to test our hypothesis by means of the auditory startle reaction (ASR). By investigating ASR, we also had the opportunity to test presence of orienting reaction, which is generally defined as the second phase of response after the auditory stimulus, with longer latency...
March 14, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28314520/interaction-between-postural-asymmetry-and-visual-feedback-effects-in-undisturbed-upright-stance-control-in-healthy-adults
#19
Patrice R Rougier, Samir Boudrahem
OBJECTIVES: The technique of additional visual feedback has been shown to significantly decrease the center of pressure (CP) displacements of a standing subject. Body-weight asymmetry is known to increase postural instability due to difficulties in coordinating the reaction forces exerted under each foot and is often a cardinal feature of various neurological and traumatic diseases. To examine the possible interactions between additional visual feedback and body-weight asymmetry effects, healthy adults were recruited in a protocol with and without additional visual feedback, with different levels of body-weight asymmetry...
March 14, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28314519/after-effects-of-peripheral-neurostimulation-on-brain-plasticity-and-ankle-function-in-chronic-stroke-the-role-of-afferents-recruited
#20
Louis-David Beaulieu, Hugo Massé-Alarie, Samuel Camiré-Bernier, Édith Ribot-Ciscar, Cyril Schneider
AIMS OF THE STUDY: This study tested the after-effects of neuromuscular electrical stimulation (NMES), repetitive peripheral magnetic stimulation (rPMS) and muscle tendon vibration (VIB) on brain plasticity and sensorimotor impairments in chronic stroke to investigate whether different results could depend on the nature of afferents recruited by each technique. MATERIALS AND METHODS: Fifteen people with chronic stroke participated in five sessions (one per week)...
March 14, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
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