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Neurostimulation

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https://www.readbyqxmd.com/read/29155063/technical-note-robotic-guided-bi-hippocampal-and-bi-parahippocampal-depth-placement-for-responsive-neurostimulation-in-bitemporal-lobe-epilepsy
#1
Pratik Rohatgi, Ryan J Jafrani, Nicholas J Brandmeir, Frank G Gilliam, Tiffany L Fisher, Michael D Sather
BACKGROUND: Patients with bitemporal lobe epilepsy are generally not considered for surgical resection. Fortunately, responsive neurostimulation proves another avenue for the management of this challenging disease process. In conjunction with our epileptologist, we consider responsive neurostimulation for patients who have clinical features of temporal lobe epilepsy without clear localization on imaging and stereo-EEG. METHODS: Here we describe our technique for implanting a responsive neurostimulator (NeuroPace, NeuroPace Inc...
November 14, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29152818/electrical-stimulation-of-dorsal-root-ganglion-in-the-context-of-pain-a-systematic-review-of-in-vitro-and-in-vivo-animal-model-studies
#2
REVIEW
Ivana Vuka, Katarina Vučić, Tihana Repić, Lejla Ferhatović Hamzić, Damir Sapunar, Livia Puljak
OBJECTIVE: Dorsal root ganglion (DRG) has recently emerged as an attractive target for neuromodulation therapy since primary sensory neurons and their soma in DRGs are important sites for pathophysiologic changes that lead to neuropathic pain. Our aim was to create evidence synthesis about the effects of electrical stimulation of DRG in the context of pain from in vitro and in vivo animal models, analyze methodology and quality of studies in the field. METHODS: For conducting systematic review we searched three data bases: MEDLINE, Embase and Web of Science...
November 20, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/29149156/survival-analysis-of-occipital-nerve-stimulator-leads-placed-under-fluoroscopic-guidance-with-and-without-ultrasonography
#3
James H Jones, Alison Brown, Daniel Moyse, Wenjing Qi, Lance Roy
BACKGROUND: Electrical stimulation of the greater occipital nerves is performed to treat pain secondary to chronic daily headaches and occipital neuralgia. The use of fluoroscopy alone to guide the surgical placement of electrodes near the greater occipital nerves disregards the impact of tissue planes on lead stability and stimulation efficacy. OBJECTIVE: We hypothesized that occipital neurostimulator (ONS) leads placed with ultrasonography combined with fluoroscopy would demonstrate increased survival rates and times when compared to ONS leads placed with fluoroscopy alone...
November 2017: Pain Physician
https://www.readbyqxmd.com/read/29135692/ultrasound-with-neurostimulation-compared-with-ultrasound-guidance-alone-for-lumbar-plexus-block-a-randomised-single-blinded-equivalence-trial
#4
Vanlapa Arnuntasupakul, Theerawat Chalachewa, Prangmalee Leurcharusmee, Worakamol Tiyaprasertkul, Roderick J Finlayson, De Q Tran
BACKGROUND: Ultrasound-guided lumbar plexus blocks usually require confirmatory neurostimulation. A simpler alternative is to inject local anaesthetic inside the posteromedial quadrant of the psoas muscle under ultrasound guidance. OBJECTIVE: We hypothesised that both techniques would result in similar total anaesthesia time, defined as the sum of performance and onset time. DESIGN: A randomised, observer-blinded, equivalence trial (equivalence margin = 7...
November 11, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/29119963/-what-physiotherapeutic-method-for-the-treatment-of-post-mastectomy-lymphedema-is-the-most-effective
#5
T I Grushina
We have undertaken the search for the publications of interest in the following databases: Scopus, Web of Science, MedLine, The Cochrane Library, CyberLeninka, and Russian science citation index. In addition, we evaluated the effectiveness of the physical agents and procedures having different mechanisms of action of the known factors responsible for the development of post-mastectomy lymphedema. Such agents and procedures include self-massage, manual lymphatic drainage, therapeutic physical exercises, compression bandaging, wearing elastic compression garments, Kinesio Tex taping, pneumatic compression, ultrasonic, electrostatic, extracorporeal shock wave therapy, electrical muscle stimulation, microcurrent and low-intensity laser therapy...
2017: Voprosy Kurortologii, Fizioterapii, i Lechebnoĭ Fizicheskoĭ Kultury
https://www.readbyqxmd.com/read/29118434/supernatural-belief-is-not-modulated-by-intuitive-thinking-style-or-cognitive-inhibition
#6
Miguel Farias, Valerie van Mulukom, Guy Kahane, Ute Kreplin, Anna Joyce, Pedro Soares, Lluis Oviedo, Mathilde Hernu, Karolina Rokita, Julian Savulescu, Riikka Möttönen
According to the Intuitive Belief Hypothesis, supernatural belief relies heavily on intuitive thinking-and decreases when analytic thinking is engaged. After pointing out various limitations in prior attempts to support this Intuitive Belief Hypothesis, we test it across three new studies using a variety of paradigms, ranging from a pilgrimage field study to a neurostimulation experiment. In all three studies, we found no relationship between intuitive or analytical thinking and supernatural belief. We conclude that it is premature to explain belief in gods as 'intuitive', and that other factors, such as socio-cultural upbringing, are likely to play a greater role in the emergence and maintenance of supernatural belief than cognitive style...
November 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29113468/hippocampal-cholinergic-neurostimulating-peptide-as-a-possible-modulating-factor-against-glutamatergic-neuronal-disability-by-amyloid-oligomers
#7
Toyohiro Sato, Yoshiaki Ohi, Daisuke Kato, Masayuki Mizuno, Hiroshi Takase, Tetsuko Kanamori, Cesar V Borlongan, Akira Haji, Noriyuki Matsukawa
Despite having pathological changes in the brain associated with Alzheimer's disease (AD), some patients have preserved cognitive function. A recent epidemiological study has shown that diet, exercise, cognitive training, and vascular risk monitoring interventions may reduce cognitive decline in at-risk elderly people in the general population. However, the details of molecular mechanisms underlying this cognitive function preservation are still unknown. Previous reports have demonstrated that enriched environments prevent the impairment of hippocampal long-term potentiation (LTP) through β2-adrenergic signals, when LTP is incompletely suppressed by synthetic amyloid-β (Aβ) oligomers...
September 2017: Cell Transplantation
https://www.readbyqxmd.com/read/29101842/the-effect-of-transcranial-direct-current-stimulation-of-the-prefrontal-cortex-on-implicit-self-esteem-is-mediated-by-rumination-after-criticism
#8
Rudi De Raedt, Jonathan Remue, Tom Loeys, Jill M Hooley, Chris Baeken
It has been proposed that a crucial link between cognitive (i.e., self-schemas) and biological vulnerability is prefrontal control. This is because decreased control leads to impaired ability to inhibit ruminative thinking after the activation of negative self-schemas. However, current evidence is mainly correlational. In the current experimental study we tested whether the effect of neurostimulation of the dorsolateral prefrontal cortex (DLPFC) on self-esteem is mediated by momentary ruminative self-referential thinking (MRST) after the induction of negative self-schemas by criticism...
October 21, 2017: Behaviour Research and Therapy
https://www.readbyqxmd.com/read/29098688/thalamocortical-functional-connectivity-in-lennox-gastaut-syndrome-is-abnormally-enhanced-in-executive-control-and-default-mode-networks
#9
Aaron E L Warren, David F Abbott, Graeme D Jackson, John S Archer
OBJECTIVE: To identify abnormal thalamocortical circuits in the severe epilepsy of Lennox-Gastaut syndrome (LGS) that may explain the shared electroclinical phenotype and provide potential treatment targets. METHODS: Twenty patients with a diagnosis of LGS (mean age = 28.5 years) and 26 healthy controls (mean age = 27.6 years) were compared using task-free functional magnetic resonance imaging (MRI). The thalamus was parcellated according to functional connectivity with 10 cortical networks derived using group-level independent component analysis...
November 3, 2017: Epilepsia
https://www.readbyqxmd.com/read/29082824/cranial-parasympathetic-activation-induces-autonomic-symptoms-but-no-cluster-headache-attacks
#10
Song Guo, Anja Sofie Petersen, Henrik Winther Schytz, Mads Barløse, Anthony Caparso, Jan Fahrenkrug, Rigmor Højland Jensen, Messoud Ashina
Background Low frequency (LF) stimulation of the sphenopalatine ganglion (SPG) may increase parasympathetic outflow and provoke cluster headache (CH) attacks in CH patients implanted with an SPG neurostimulator. Methods In a double-blind randomized sham-controlled crossover study, 20 CH patients received LF or sham stimulation for 30 min on two separate days. We recorded headache characteristics, cephalic autonomic symptoms (CAS), plasma levels of parasympathetic markers such as pituitary adenylate cyclase-activating polypeptide-38 (PACAP38) and vasoactive intestinal peptide (VIP), and mechanical detection and pain thresholds as a marker of sensory modulation...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/29077142/-non-invasive-neurostimulation-in-the-treatment-of-child-and-adolescent-psychiatry
#11
S van der Meersche, G Lemmens, C Matton, C Baeken
Neurostimulation is a potentially interesting treatment option for children and adolescents with psychiatric disorders.<br/> AIM: To review the efficacy of two non-invasive neurostimulation techniques, namely repetitive transcranial magnetic stimulation (rtms) and transcranial direct current stimulation (tdcs), in the treatment of child and adolescent psychiatric disorders.<br/> METHOD: We searched the literature research using PubMed.<br/> RESULTS: There is some evidence that rtms is being used to treat unipolar depression, psychosis, autism spectrum disorder, attention deficit hyperactivity disorder and tic disorder...
2017: Tijdschrift Voor Psychiatrie
https://www.readbyqxmd.com/read/29077132/-brain-stimulation-the-most-direct-form-of-neurostimulation
#12
T A de Graaf, C Baeken, P Sienaert, A Aleman, A T Sack
BACKGROUND: Brain stimulation is the most direct form of neuromodulation. Direct brain stimulation is an older procedure that has taken various forms, but 'non-invasive brain stimulation' is a more recent development. AIM: To provide an overview of the current arsenal of non-invasive brain stimulation techniques. METHOD: We discuss the underlying principles, the pros and cons, and the applicability of non-invasive brain stimulation in experimental research and treatment of neuropsychiatric disorders...
2017: Tijdschrift Voor Psychiatrie
https://www.readbyqxmd.com/read/29076214/thinking-small-progress-on-microscale-neurostimulation-technology
#13
REVIEW
Joseph J Pancrazio, Felix Deku, Atefeh Ghazavi, Allison M Stiller, Rashed Rihani, Christopher L Frewin, Victor D Varner, Timothy J Gardner, Stuart F Cogan
OBJECTIVES: Neural stimulation is well-accepted as an effective therapy for a wide range of neurological disorders. While the scale of clinical devices is relatively large, translational, and pilot clinical applications are underway for microelectrode-based systems. Microelectrodes have the advantage of stimulating a relatively small tissue volume which may improve selectivity of therapeutic stimuli. Current microelectrode technology is associated with chronic tissue response which limits utility of these devices for neural recording and stimulation...
October 27, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/29067158/proof-of-concept-short-term-non-invasive-cervical-vagus-nerve-stimulation-in-patients-with-drug-refractory-gastroparesis
#14
Emma Paulon, Despoina Nastou, Francesca Jaboli, Juana Marin, Eric Liebler, Owen Epstein
BACKGROUND: Gastric electric stimulation (GES) is a treatment approach to refractory gastroparesis, possibly acting centrally via afferent vagus nerve stimulation (VNS). Non-invasive VNS (nVNS) is a potential alternative to GES that could eliminate the safety risks of or identify likely responders to implantable neurostimulators. OBJECTIVE: This open-label proof-of-concept study assessed the effects of nVNS in patients with severe drug-refractory gastroparesis. METHODS: Patients used the Gastroparesis Cardinal Symptom Index (GCSI) to grade symptoms in diaries daily for 2 weeks before treatment (baseline) and during ≥3 weeks of nVNS therapy...
October 2017: Frontline Gastroenterology
https://www.readbyqxmd.com/read/29061008/-efficacy-and-safety-of-ultrasound-guided-or-neurostimulator-guided-bilateral-axillary-brachial-plexus-block
#15
C S Xu, X L Zhao, H B Zhou, Z J Qu, Q G Yang, H J Wang, G Wang
Objective: To explore the efficacy and safety of bilateral axillary brachial plexus block under the guidance of ultrasound or neurostimulator. Methods: From February 2012 to April 2014, 120 patients undergoing bilateral hand/forearm surgery in Beijing Jishuitan Hospital were enrolled and anaesthetized with bilateral axillary brachial plexus block. All patients were divided into two groups randomly using random number table: the ultrasound-guided group (group U, n=60) and the neurostimulator-guidedgroup (group N, n=60)...
October 17, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29060742/modeling-electrical-stimulation-of-mammalian-nerve-fibers-a-mechanistic-versus-probabilistic-approach
#16
Vijay Sadashivaiah, Pierre Sacre, Yun Guan, William S Anderson, Sridevi V Sarma
Electrical neurostimulation is increasingly used over neuropharmacology to treat various diseases. Despite efforts to model the effects of electrical stimulation, its underlying mechanisms remain unclear. This is because current mechanistic models just quantify the effects that the electrical field produces near the fiber and do not capture interactions between stimulus-initiated action potentials (APs) and underlying physiological activity initiated APs. In this study, we aim to quantify and compare these interactions...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29060671/em-fields-comparison-between-planar-vs-solenoidal-%C3%AE-ms-coil-designs-for-nerve-stimulation
#17
Giorgio Bonmassar, Laleh Golestanirad
Micro-magnetic stimulation (μMS) is an emerging neurostimulation technology that promises to revolutionize the therapeutic stimulation of the human nervous system. μMS uses sub-millimeter sized coils that can be implemented in the central nervous system to elicit neuronal activation using magnetically induced electric currents. By their microscopic size, μMS coils can be acutely implanted in deep brain structures to deliver therapeutic stimulation with effects analogous to those achieved by state-of-the-art deep brain stimulation (DBS)...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29059697/stimulation-of-the-mesencephalic-locomotor-region-for-gait-recovery-after-stroke
#18
Felix Fluri, Uwe Malzahn, György A Homola, Michael K Schuhmann, Christoph Kleinschnitz, Jens Volkmann
OBJECTIVE: One-third of all stroke survivors are unable to walk, even after intensive physiotherapy. Thus, other concepts to restore walking are needed. Because electrical stimulation of the mesencephalic locomotor region (MLR) is known to elicit gait movements, this area might be a promising target for restorative neurostimulation in stroke patients with gait disability. The present study aims to delineate the effect of high-frequency stimulation of the MLR (MLR-HFS) on gait impairment in a rodent stroke model...
October 23, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/29046985/new-devices-and-technologies-for-the-management-of-overactive-bladder
#19
REVIEW
Juan M Guzman-Negron, Howard B Goldman
PURPOSE OF REVIEW: Overactive bladder (OAB) affects millions of people in the USA and has a significant impact on their quality of life. Despite having a number of safe and effective ways of managing refractory OAB patients, there are many promising new technologies actively being studied and developed for the treatment of this population. This review examines current new devices and technologies under study for the treatment of OAB. RECENT FINDINGS: Modifications to already established therapies such as sacral nerve stimulation (SNS) or tibial nerve stimulation (TNS) are currently being studied for refractory OAB...
October 18, 2017: Current Urology Reports
https://www.readbyqxmd.com/read/29030173/a-novel-miniature-wireless-neurostimulator-in-the-management-of-chronic-craniofacial-pain-preliminary-results-from-a-prospective-pilot-study
#20
Richard L Weiner, Carlos Montes Garcia, Niek Vanquathem
OBJECTIVE: To report a novel wireless neuromodulation system for treatment of refractory craniofacial pain. BACKGROUND: Previous studies utilizing peripheral nerve stimulation (PNS) of the occipital and trigeminal nerves reported positive outcomes for alleviating neuropathic pain localized to the craniofacial and occipital areas. However several technological limitations and cosmetic concerns inhibited a more widespread acceptance and use of neuromodulation. Also, a relatively high incidence of adverse events like electrode erosions, dislocation, wire fracture and/or infection at the surgical site mandates a change in our approach to neuromodulation technology and implant techniques in the craniofacial region...
October 10, 2017: Scandinavian Journal of Pain
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