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https://www.readbyqxmd.com/read/29050383/early-detection-of-consciousness-in-patients-with-acute-severe-traumatic-brain-injury
#1
Brian L Edlow, Camille Chatelle, Camille A Spencer, Catherine J Chu, Yelena G Bodien, Kathryn L O'Connor, Ronald E Hirschberg, Leigh R Hochberg, Joseph T Giacino, Eric S Rosenthal, Ona Wu
See Schiff (doi:10.1093/awx209) for a scientific commentary on this article. Patients with acute severe traumatic brain injury may recover consciousness before self-expression. Without behavioural evidence of consciousness at the bedside, clinicians may render an inaccurate prognosis, increasing the likelihood of withholding life-sustaining therapies or denying rehabilitative services. Task-based functional magnetic resonance imaging and electroencephalography techniques have revealed covert consciousness in the chronic setting, but these techniques have not been tested in the intensive care unit...
September 1, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29048262/genetic-and-environmental-influences-on-developmental-milestones-and-movement-results-from-the-gemini-cohort-study
#2
Lee Smith, Cornelia H M van Jaarsveld, Clare H Llewellyn, Alison Fildes, Guillermo Felipe López Sánchez, Jane Wardle, Abigail Fisher
PURPOSE: Variability in the timing of infant developmental milestones is poorly understood. We used a twin analysis to estimate genetic and environmental influences on motor development and activity levels in infancy. METHOD: Data were from the Gemini Study, a twin birth cohort of 2,402 families with twins born in the United Kingdom in 2007. Parents reported motor activity level for each of the twins at age 3 months using the Revised Infant Behavior Rating Scale and reported the ages at which they first sat unsupported, crawled, and walked unaided...
October 19, 2017: Research Quarterly for Exercise and Sport
https://www.readbyqxmd.com/read/29044937/selective-inhibition-of-m5-muscarinic-acetylcholine-receptors-attenuates-cocaine-self-administration-in-rats
#3
Barak W Gunter, Robert W Gould, Michael Bubser, Kevin M McGowan, Craig W Lindsley, Carrie K Jones
Cocaine use disorder (CUD) remains a debilitating health problem in the United States for which there are no Food and Drug Administration-approved treatment options. Accumulating anatomical and electrophysiological evidence indicates that the muscarinic acetylcholine receptor (mAChR) subtype 5 (M5 ) plays a critical role in the regulation of the mesolimbic dopaminergic reward circuitry, a major site of action for cocaine and other psychostimulants. In addition, M5 knockout mice exhibit reduced cocaine self-administration behaviors with no differences in sugar pellet-maintained responding relative to wild-type mice...
October 18, 2017: Addiction Biology
https://www.readbyqxmd.com/read/29043919/beyond-survival-5-year-neurodevelopmental-follow-up-of-a-cohort-of-preterm-infants-in-colombo-sri-lanka
#4
S P Sumanasena, D V Vipulaguna, M M Mendis, N S Gunawardena
BACKGROUND: There is a lack of information on long-term neurodevelopmental outcome in preterm neonates in low- and middle-income countries. OBJECTIVES: To describe the developmental attainments of preterm neonates followed up for 5 years and to identify the risk factors for impairment. METHOD: A prospective descriptive cohort study was undertaken in neonates of 34 weeks gestation born within a period of 12 months at a single tertiary maternity and neonatal unit in Colombo, Sri Lanka...
October 18, 2017: Paediatrics and International Child Health
https://www.readbyqxmd.com/read/29042171/development-of-a-computerized-adaptive-testing-system-of-the-functional-assessment-of-stroke
#5
Gong-Hong Lin, Yi-Jing Huang, Shih-Chieh Lee, Sheau-Ling Huang, Ching-Lin Hsieh
OBJECTIVE: To develop a computerized adaptive testing system of the Functional Assessment of Stroke (CAT-FAS) to assess upper- and lower-extremity (UE/LE) motor function, postural control, and basic activities of daily living (BADL) with optimal efficiency and without sacrificing psychometric properties in patients with stroke. DESIGN: Simulation study using the data from a previous study. Participants were assessed with the UE/LE subscales of the Fugl-Meyer Assessment (UE-FM/LE-FM), Postural Assessment Scale for Stroke patients (PASS), and Barthel Index (BI) at 14- and 30-day after stroke...
October 14, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29038435/specificity-of-surface-emg-recordings-for-gastrocnemius-during-upright-standing
#6
Taian Martins Vieira, Alberto Botter, Silvia Muceli, Dario Farina
The relatively large pick-up volume of surface electrodes has for long motivated the concern that muscles other than that of interest may contribute to surface electromyograms (EMGs). Recent findings suggest however the pick-up volume of surface electrodes may be smaller than previously appreciated, possibly leading to the detection of surface EMGs insensitive to muscle activity. Here we combined surface and intramuscular recordings to investigate how comparably action potentials from gastrocnemius and soleus are represented in surface EMGs detected with different inter-electrode distances...
October 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29038241/sensorimotor-processing-in-the-basal-ganglia-leads-to-transient-beta-oscillations-during-behavior
#7
Amin Mirzaei, Arvind Kumar, Daniel Leventhal, Nicolas Mallet, Ad Aertsen, Joshua Berke, Robert Schmidt
Brief epochs of beta oscillations have been implicated in sensorimotor control in the basal ganglia of task-performing healthy animals. However, which neural processes underlie their generation and how they are affected by sensorimotor processing remains unclear. To determine the mechanisms underlying transient beta oscillations in the local field potential (LFP), we combined computational modeling of the subthalamo-pallidal network for the generation of beta oscillations with realistic stimulation patterns derived from single unit data...
October 16, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29037885/national-trends-and-outcomes-of-cardiac-arrest-in-opioid-overdose
#8
Ankit Sakhuja, Matthew Sztajnkrycer, Saraschandra Vallabhajosyula, Wisit Cheungpasitporn, Richard Patch, Jacob Jentzer
AIM: To investigate the epidemiology and outcomes of cardiac arrests associated with opioid overdoses. Recent data suggest that drug overdoses are responsible for more deaths than motor vehicle crashes or firearms in the United States each year, with opioids being involved in majority of drug overdose deaths. Despite the potential for opioids to cause cardiac arrest, few studies have examined this association. PATIENTS AND METHODS: Using data from National (Nationwide) Inpatient Sample database from years 2000-2013, we identified hospitalizations with drug overdoses using ICD-9-CM codes...
October 13, 2017: Resuscitation
https://www.readbyqxmd.com/read/29037512/treatment-outcomes-and-associated-factors-among-extremely-preterm-infants-in-a-major-children-hospital-in-guangxi-china
#9
Yan Li, Qiu-Fen Wei, Dan-Hua Meng, Xin-Nian Pan, Yan Mo, Li-Ping Yao, Lian-Fang Jing, Dan Zhao, Kai-Yan Shen, Jing Xu
BACKGROUND: In developing countries, infant survival rate and long-term outcomes of extremely preterm infants(EPIs) have significantly improved due to advances in perinatal care. The striking gap in the treatment outcome of EPIs between China and the other developed countries was a major concern. To assess treatment outcomes and associated factors among EPIs in Nanning, China. METHODS: This was a perspective study consisting of eligible cases with gestational age between 22 and 28 weeks and infants were followed to 18-24 months of age...
September 25, 2017: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/29034688/end-of-life-characteristics-and-palliative-care-provision-for-patients-with-motor-neuron-disease
#10
Hon Wai Benjamin Cheng, Oi Man Iman Chan, Chun Hung Red Chan, Wan Hung Chan, Koon Sim Fung, Kar Yin Wong
Motor neuron disease (MND) is a neurodegenerative disease and manifested as progressive decline in physical, respiratory, swallowing and communication function, and ultimately death. Traditional model of care was fragmented and did not match with multifacet needs of patients and carers. Furthermore, there could be lack of integrated care at end of life for patients with MND in most lower- and middle-income countries or in places with inadequate palliative care (PC) coverage. In view of this, a special workgroup for patients with MND, which includes neurologist, respiratory physician, rehabilitation specialist, and PC physician was formed in Hong Kong since year 2011...
January 1, 2017: American Journal of Hospice & Palliative Care
https://www.readbyqxmd.com/read/29034057/design-and-fabrication-of-a-low-cost-three-dimensional-bioprinter
#11
Colton McElheny, Daniel Hayes, Ram Devireddy
Three-dimensional (3D) bioprinting offers innovative research vectors for tissue engineering. However, commercially available bioprinting platforms can be cost prohibitive to small research facilities, especially in an academic setting. The goal is to design and fabricate a low-cost printing platform able to deliver cell-laden fluids with spatial accuracy along the X, Y, and Z axes of 0.1 mm. The bioprinter consists of three subassemblies: a base unit, a gantry, and a shuttle component. The platform utilizes four stepper motors to position along three axes and a fifth stepper motor actuating a pump...
December 2017: Journal of Medical Devices
https://www.readbyqxmd.com/read/29032012/continuous-subcutaneous-apomorphine-infusion-in-parkinson-s-disease-patients-with-cognitive-dysfunction-a-retrospective-long-term-follow-up-study
#12
Robbert W K Borgemeester, Teus van Laar
INTRODUCTION: Continuous apomorphine infusion (CAI) is an advanced therapy in fluctuating Parkinson's disease (PD). The use of CAI is controversial in PD patients with cognitive dysfunction including visual hallucinations (VHs), and orthostatic hypotension (OH). This study was set-up to analyze the effectiveness and safety of CAI in elderly PD patients with cognitive dysfunction. METHODS: This new-user cohort study identified fluctuating PD patients who started CAI treatment at the rehabilitation unit of Parkinson Expertise Center (RU-PEC) Groningen, from November 2004 until 2016...
September 29, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29031542/complications-and-30-day-readmission-rates-after-craniotomy-craniectomy-a-single-institutional-study-of-243-consecutive-patients
#13
Aladine A Elsamadicy, Amanda Sergesketter, Owoicho Adogwa, Michael Ongele, Oren N Gottfried
Early hospital readmission has become a proxy for quality of care and contributes significantly to high health care costs in the United States, with more than $20 billion health care dollars are spent on 30-day readmission annually. Cranial neurosurgical procedures (i.e., craniotomy, craniectomy) are associated with high readmission rates; however, studies examining readmission after cranial procedures are limited and relatively unknown. The aim of this study is to identify the drivers of 30-day unplanned readmission in consecutive patients undergoing craniotomies and craniectomies...
October 11, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29028962/clinical-features-of-acute-flaccid-myelitis-temporally-associated-with-an-enterovirus-d68-outbreak-results-of-a-nationwide-survey-of-acute-flaccid-paralysis-in-japan-august-december-2015
#14
Pin Fee Chong, Ryutaro Kira, Harushi Mori, Akihisa Okumura, Hiroyuki Torisu, Sawa Yasumoto, Hiroyuki Shimizu, Tsuguto Fujimoto, Nozomu Hanaoka, Susumu Kusunoki, Toshiyuki Takahashi, Kazunori Oishi, Keiko Tanaka-Taya
Backgroud: Acute flaccid myelitis (AFM) is an acute flaccid paralysis (AFP) syndrome with spinal motor neuron involvement of unknown etiology. We investigated the characteristics and prognostic factors of AFM clusters coincident with an enterovirus D68 (EV-D68) outbreak in Japan during autumn 2015. Methods: An AFM case series study was conducted following a nationwide survey from August to December 2015. Radiographic and neurophysiologic data were subjected to centralized review, and virology studies were conducted for available specimens...
October 6, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29024654/striatal-local-circuitry-a-new-framework-for-lateral-inhibition
#15
REVIEW
Dennis A Burke, Horacio G Rotstein, Veronica A Alvarez
This Perspective will examine the organization of intrastriatal circuitry, review recent findings in this area, and discuss how the pattern of connectivity between striatal neurons might give rise to the behaviorally observed synergism between the direct/indirect pathway neurons. The emphasis of this Perspective is on the underappreciated role of lateral inhibition between striatal projection cells in controlling neuronal firing and shaping the output of this circuit. We review some classic studies in combination with more recent anatomical and functional findings to lay out a framework for an updated model of the intrastriatal lateral inhibition, where we explore its contribution to the formation of functional units of processing and the integration and filtering of inputs to generate motor patterns and learned behaviors...
October 11, 2017: Neuron
https://www.readbyqxmd.com/read/29020054/a-novel-approach-for-automatic-visualization-and-activation-detection-of-evoked-potentials-induced-by-epidural-spinal-cord-stimulation-in-individuals-with-spinal-cord-injury
#16
Samineh Mesbah, Claudia A Angeli, Robert S Keynton, Ayman El-Baz, Susan J Harkema
Voluntary movements and the standing of spinal cord injured patients have been facilitated using lumbosacral spinal cord epidural stimulation (scES). Identifying the appropriate stimulation parameters (intensity, frequency and anode/cathode assignment) is an arduous task and requires extensive mapping of the spinal cord using evoked potentials. Effective visualization and detection of muscle evoked potentials induced by scES from the recorded electromyography (EMG) signals is critical to identify the optimal configurations and the effects of specific scES parameters on muscle activation...
2017: PloS One
https://www.readbyqxmd.com/read/29020012/wearable-sensors-objectively-measure-gait-parameters-in-parkinson-s-disease
#17
Johannes C M Schlachetzki, Jens Barth, Franz Marxreiter, Julia Gossler, Zacharias Kohl, Samuel Reinfelder, Heiko Gassner, Kamiar Aminian, Bjoern M Eskofier, Jürgen Winkler, Jochen Klucken
Distinct gait characteristics like short steps and shuffling gait are prototypical signs commonly observed in Parkinson's disease. Routinely assessed by observation through clinicians, gait is rated as part of categorical clinical scores. There is an increasing need to provide quantitative measurements of gait, e.g. to provide detailed information about disease progression. Recently, we developed a wearable sensor-based gait analysis system as diagnostic tool that objectively assesses gait parameter in Parkinson's disease without the need of having a specialized gait laboratory...
2017: PloS One
https://www.readbyqxmd.com/read/28994667/relative-contribution-of-different-altered-motor-unit-control-to-muscle-weakness-in-stroke-a-simulation-study
#18
Henry Shin, Nina Suresh, William Zev Rymer, Xiaogang Hu
Chronic muscle weakness impacts the majority of individuals after a stroke. The origins of this hemiparesis is multifaceted, and an altered spinal control of the motor unit (MU) pool can lead to muscle weakness. However, the relative contribution of different MU recruitment and discharge organization is not well understood. In this study, we sought to examine these different effects by utilizing a MU simulation with variations set to mimic the changes of MU control in stroke. Approach: Using a well-established model of the MU pool, this study quantified the changes in force output caused by changes in MU recruitment range and recruitment order, as well as MU firing rate organization at the population level...
October 10, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28993073/the-use-of-cannabis-in-response-to-the-opioid-crisis-a-review-of-the-literature
#19
Marianne Beare Vyas, Virginia T LeBaron, Aaron M Gilson
BACKGROUND: A staggering number of Americans are dying from overdoses attributed to prescription opioid medications (POMs). In response, states are creating policies related to POM harm reduction strategies, overdose prevention, and alternative therapies for pain management, such as cannabis (medical marijuana). However, little is known about how the use of cannabis for pain management may be associated with POM use. PURPOSE: The purpose of this article is to examine state medical cannabis (MC) use laws and policies and their potential association with POM use and related harms...
September 21, 2017: Nursing Outlook
https://www.readbyqxmd.com/read/28991688/postvoid-residual-predicts-the-diagnosis-of-multiple-system-atrophy-in-parkinsonian-syndrome
#20
Tatsuya Yamamoto, Masato Asahina, Yoshitaka Yamanaka, Tomoyuki Uchiyama, Shigeki Hirano, Miki Fuse, Yasuko Koga, Ryuji Sakakibara, Satoshi Kuwabara
OBJECTIVE: It is difficult to differentiate multiple system atrophy (MSA) from Parkinson's disease (PD) at least in the early stage. Urodynamic study (UDS) is useful in differentiating MSA from PD. We aimed to clarify which UDS parameter was useful in differentiating MSA from PD. METHODS: We retrospectively reviewed 273 cases and performed UDS and external anal sphincter electromyography (EAS-EMG) in patients with MSA (n=182) and PD (n=91). We analyzed the utility of UDS parameters, including postvoid residuals (PVR), detrusor overactivity (DO), degree of bladder contraction, and mean duration of motor unit potentials (MUPs) in EAS-EMG, for differentiating MSA from PD...
October 15, 2017: Journal of the Neurological Sciences
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