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Neurostimulation

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https://www.readbyqxmd.com/read/28334499/dorsal-column-stimulation-versus-dorsal-root-ganglion-stimulation-for-complex-regional-pain-syndrome-confined-to-the-knee-patients-preference-following-the-trial-period
#1
Catelijne M van Bussel, Dirk L Stronks, Frank J P M Huygen
BACKGROUND AND OBJECTIVES: Patients with complex regional pain syndrome (CRPS) confined to the knee are often therapy resistant. Neurostimulation is an accepted treatment for CRPS. Although results with dorsal column (DC) stimulation in patients with CRPS confined to the knee are often disappointing, the availability of dorsal root ganglion (DRG) stimulation may provide new opportunities for this complaint. Therefore, this study explores patients' preference for DC stimulation vs. DRG stimulation in treating chronic pain due to CRPS confined to the knee...
March 23, 2017: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/28320674/simulation-study-of-an-ultrasound-retinal-prosthesis-with-a-novel-contact-lens-array-for-noninvasive-retinal-stimulation
#2
Mengdi Gao, Yanyan Yu, Huixia Zhao, Guofeng Li, Hongyang Jiang, Congzhi Wang, Feiyan Cai, Leanne Chan, Bernard Chiu, Wei Qian, Weibao Qiu, Hairong Zheng
Millions of people around the world suffer from varying degrees of vision loss (including complete blindness) because of retinal degenerative diseases. Artificial retinal prosthesis, which is usually based on electrical neurostimulation, are the most advanced technology for different types of retinal degeneration. However, this technology involves placing a device into the eyeball, and such a highly invasive procedure is inevitably highly risk and expensive. Ultrasound has been demonstrated to be a promising technology for noninvasive neurostimulation, making it possible to stimulate the retina and induce action potentials similar to those elicited by light stimulation...
March 15, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28320451/personal-medical-electronic-devices-and-walk-through-metal-detector-security-systems-assessing-electromagnetic-interference-effects
#3
Joshua Guag, Bisrat Addissie, Donald Witters
BACKGROUND: There have been concerns that Electromagnetic security systems such as walk-through metal detectors (WTMDs) can potentially cause electromagnetic interference (EMI) in certain active medical devices including implantable cardiac pacemakers and implantable neurostimulators. Incidents of EMI between WTMDs and active medical devices also known as personal medical electronic devices (PMED) continue to be reported. This paper reports on emission measurements of sample WTMDs and testing of 20 PMEDs in a WTMD simulation system...
March 20, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28319561/pediatric-enteric-neuropathies-diagnosis-and-current-management
#4
Maggie L Westfal, Allan M Goldstein
PURPOSE OF REVIEW: Neurointestinal diseases are increasingly recognized as causes of significant gastrointestinal morbidity in children. This review highlights the most common pediatric enteric neuropathies and their diagnosis and management, emphasizing insights and discoveries from the most recent literature available. RECENT FINDINGS: The embryologic and histopathologic causes of enteric neuropathies are varied. They range from congenital aganglionosis in Hirschsprung disease, to autoimmune-mediated loss of neuronal subtypes in esophageal achalasia and Chagas disease, to degenerative neuropathies in some cases of chronic intestinal pseudo-obstruction and gastroparesis...
March 17, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28315922/superior-perioperative-analgesia-with-combined-femoral-obturator-sciatic-nerve-block-in-comparison-with-posterior-lumbar-plexus-and-sciatic-nerve-block-for-acl-reconstructive-surgery
#5
Metaxia Bareka, Michael Hantes, Eleni Arnaoutoglou, George Vretzakis
PURPOSE: The purpose of this randomized controlled study is to compare and evaluate the intraoperative and post-operative outcome of PLPS nerve block and that of femoral, obturator and sciatic (FOS) nerve block as a method of anaesthesia, in performing ACL reconstruction. METHODS: Patients referred for elective arthroscopic ACL reconstruction using hamstring autograft were divided in two groups. The first group received combined femoral-obturator-sciatic nerve block (FOS Group) under dual guidance, whereas the second group received posterior lumbar plexus block under neurostimulation and sciatic nerve block (PLPS Group) under dual guidance...
March 18, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
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
#6
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
https://www.readbyqxmd.com/read/28302532/randomized-controlled-crossover-trial-comparing-the-impact-of-sham-or-intranasal-neurostimulation-on-conjunctival-goblet-cell-degranulation
#7
Koray Gumus, Karri L Schuetzle, Stephen C Pflugfelder
PURPOSE: The aim of the study was to investigate the effects of the Oculeve Intranasal Lacrimal Neurostimulator (ILN) on conjunctival goblet cell degranulation. DESIGN: A randomized, double-masked, placebo-controlled crossover trial METHODS: A total of 15 subjects (5 normal and 10 dry eye) were enrolled in a three-visit study consisting of one screening and two separate randomized-masked ILN treatments (sham extranasal or intranasal). Tear meniscus height (TMH) was measured by AS-OCT before and after applications...
March 13, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28301217/neuromodulation-with-percutaneous-electrical-nerve-field-stimulation-is-associated-with-reduction-in-signs-and-symptoms-of-opioid-withdrawal-a-multisite-retrospective-assessment
#8
Adrian Miranda, Arturo Taca
BACKGROUND: Finding an effective, non-pharmacological approach to treat opioid withdrawal could remove some of the barriers associated with pharmacotherapy. The BRIDGE® is a noninvasive, percutaneous electrical nerve field stimulator developed to target pain. OBJECTIVES: This pilot study aimed to determine (1) the effects of the BRIDGE on withdrawal scores during the induction phase of opioid withdrawal therapy, (2) the percentage of subjects who successfully transitioned to medication assisted therapy (MAT)...
March 16, 2017: American Journal of Drug and Alcohol Abuse
https://www.readbyqxmd.com/read/28297590/insight-into-illness-and-cognition-in-schizophrenia-in-earlier-and-later-life
#9
Philip Gerretsen, Aristotle N Voineskos, Ariel Graff-Guerrero, Mahesh Menon, Bruce G Pollock, David C Mamo, Benoit H Mulsant, Tarek K Rajji
OBJECTIVE: Impaired insight into illness in schizophrenia is associated with illness severity and deficits in premorbid intellectual function, executive function, and memory. A previous study of patients aged 60 years and older found that illness severity and premorbid intellectual function accounted for variance in insight impairment. As such, we aimed to test whether similar relationships would be observed in earlier life. METHODS: A retrospective analysis was performed on 1 large sample of participants (n = 171) with a DSM-IV-TR diagnosis of schizophrenia aged 19 to 79 years acquired from 2 studies: (1) a psychosocial intervention trial for older persons with schizophrenia (June 2008 to May 2014) and (2) a diffusion tensor imaging and genetics study of psychosis across the life span (February 2007 to December 2013)...
March 14, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28289393/toward-a-symptom-guided-neurostimulation-for-gilles-de-la-tourette-syndrome
#10
REVIEW
Nicole Pedroarena-Leal, Diane Ruge
Therapy resistance of approximately one-third of patients with Gilles de la Tourette syndrome (GTS) requires consideration of alternative therapeutic interventions. This article provides a condensed review of the invasive and non-invasive stimulation techniques that have been applied, to date, for treatment and investigation of GTS. Through this perspective and short review, the article discusses potential novel applications for neurostimulation techniques based on a symptom-guided approach. The concept of considering the physiological basis of specific symptoms when using stimulation techniques will provide a platform for more effective non-pharmacological neuromodulation of symptoms in GTS...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28287977/neurostimulation-strategy-for-stress-urinary-incontinence
#11
Xuechen Huang, Kaihui Zheng, Sam Kohan, Petcharat May Denprasert, Limin Liao, Gerald E Loeb
We have developed a percutaneously implantable and wireless microstimulator (NuStim®) to exercise the pelvic floor muscles for treatment of stress urinary incontinence. It produces a wide range of charge-regulated electrical stimulation pulses and trains of pulses using a simple electronic circuit that receives power and timing information from an externally generated RF magnetic field. The complete system was validated in vitro and in vivo in preclinical studies demonstrating that the NuStim can be successfully implanted into an effective, low threshold location and the implant can be operated chronically to produce effective and well-tolerated contractions of skeletal muscle...
March 7, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28282317/intranasal-tear-neurostimulation-an-emerging-concept-in-the-treatment-of-dry-eye
#12
Koray Gumus, Stephen C Pflugfelder
No abstract text is available yet for this article.
2017: International Ophthalmology Clinics
https://www.readbyqxmd.com/read/28273933/anodal-transcranial-direct-current-stimulation-over-the-left-dorsolateral-prefrontal-cortex-modulates-attention-and-pain-in-fibromyalgia-randomized-clinical-trial
#13
Adriana Ferreira Silva, Maxciel Zortea, Sandra Carvalho, Jorge Leite, Iraci Lucena da Silva Torres, Felipe Fregni, Wolnei Caumo
Cognitive dysfunction in fibromyalgia patients has been reported, especially when increased attentional demands are required. Transcranial direct current stimulation (tDCS) over the dorsolateral prefrontal cortex (DLPFC) has been effective in modulating attention. We tested the effects of a single session of tDCS coupled with a Go/No-go task in modulating three distinct attentional networks: alertness, orienting and executive control. Secondarily, the effect on pain measures was evaluated. Forty females with fibromyalgia were randomized to receive active or sham tDCS...
December 2017: Scientific Reports
https://www.readbyqxmd.com/read/28271335/central-and-peripheral-neural-targets-for-neurostimulation-of-chronic-headaches
#14
REVIEW
Massimo Leone, Alberto Proietti Cecchini
PURPOSE OF REVIEW: Chronic headache sufferers are estimated to be around 3% of the population. These patients have a high disease burden. When prophylactic treatments have low efficacy and tolerability, patients are in need of alternative therapeutic strategies and options. RECENT FINDINGS: In the last decade, a number of neuromodulation procedures have been introduced as treatment of chronic intractable headache patients when pharmacological treatments fail or are not well tolerated...
March 2017: Current Pain and Headache Reports
https://www.readbyqxmd.com/read/28269700/balancing-accuracy-delay-and-battery-autonomy-for-pervasive-seizure-detection
#15
Athanasios Karapatis, Robert M Seepers, Marijn van Dongen, Wouter A Serdijn, Christos Strydis
A promising alternative for treating absence seizures has emerged through closed-loop neurostimulation, which utilizes a wearable or implantable device to detect and subsequently suppress epileptic seizures. Such devices should detect seizures fast and with high accuracy, while respecting the strict energy budget on which they operate. Previous work has overlooked one or more of these requirements, resulting in solutions which are not suitable for continuous closed-loop stimulation. In this paper, we perform an in-depth design space exploration of a novel seizure-detection algorithm, which uses a complex Morlet wavelet filter and a static thresholding mechanism to detect absence seizures...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28269663/directionally-sensitive-peripheral-nerve-recording-bipolar-nerve-cuff-design
#16
Parisa Sabetian, Milos R Popovic, Paul B Yoo
Although bipolar nerve cuff electrodes (NCEs) are used in clinical neurostimulation therapies (e.g., epilepsy, obstructive sleep apnea), the use of this electrode as part of a closed-up controlled system is very limited. The literature points to high noise content (i.e., poor signal-to-noise ratio, SNR) as the primary reason for not using bipolar NCEs to record neural activity. In fact, over the past several decades, the pseudo-tripolar NCEs, the symmetric configuration of this electrode array (i.e., electrically-shorted side contacts) makes it very difficult to obtain directional information from the recorded neural activity (efferent vs...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28269604/effects-of-high-frequency-rtms-on-sleep-deprivation-a-pilot-study
#17
D P Martinez-Cancino, J Azpiroz-Leehan, L Jimenez-Angeles, A Garcia-Quintanar, R Santana-Miranda
Transcranial magnetic stimulation is a neurostimulation technique which has the potential to serve as a unique research tool for investigating a wide variety of fields in cognitive neuroscience. TMS has been approved by the FDA to serve as a treatment to depression and has also been used to evaluate its effects among several conditions such as Alzheimer, Parkinson disease, chronic pain and stroke. High frequency TMS has been previously used with the intention to measure and modulate the negative effects of sleep deprivation in cognitive performance, but there is no consensus about the ideal protocol yet...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28269487/cortical-responses-following-simultaneous-and-sequential-retinal-neurostimulation-with-different-return-configurations
#18
Alejandro Barriga-Rivera, John W Morley, Nigel H Lovell, Gregg J Suaning
Researchers continue to develop visual prostheses towards safer and more efficacious systems. However limitations still exist in the number of stimulating channels that can be integrated. Therefore there is a need for spatial and time multiplexing techniques to provide improved performance of the current technology. In particular, bright and high-contrast visual scenes may require simultaneous activation of several electrodes. In this research, a 24-electrode array was suprachoroidally implanted in three normally-sighted cats...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268764/preliminary-statistical-assessment-towards-characterization-of-biobotic-control
#19
Tahmid Latif, Meng Yang, Edgar Lobaton, Alper Bozkurt
Biobotic research involving neurostimulation of instrumented insects to control their locomotion is finding potential as an alternative solution towards development of centimeter-scale distributed swarm robotics. To improve the reliability of biobotic agents, their control mechanism needs to be precisely characterized. To achieve this goal, this paper presents our initial efforts for statistical assessment of the angular response of roach biobots to the applied bioelectrical stimulus. Subsequent findings can help to understand the effect of each stimulation parameter individually or collectively and eventually reach reliable and consistent biobotic control suitable for real life scenarios...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268755/using-liquid-metal-alloy-egain-to-electrochemically-enhance-ss-stimulation-electrodes-for-biobotic-applications
#20
Tahmid Latif, Fengyuan Gong, Michael Dickey, Mihail Sichitiu, Alper Bozkurt
Biobotics is an emerging and useful advent in the field of robotics which harnesses the mechanical power of live invertebrates and benefits from them as "working" animals. Most biobotic applications rely on neural or muscular stimulation through implanted electrodes for achieving direct control of their locomotory behavior. Degradation of stimulation efficiency is often noticed through extended usage, partly owing to incompatibility of implanted electrodes to the application. Our previous achievements in biobotics utilized commercially available stainless steel wires as stimulation electrodes due to its availability and lower cost...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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