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Neuromodulation: Journal of the International Neuromodulation Society

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https://www.readbyqxmd.com/read/28631870/thalamic-deep-brain-stimulation-for-neuropathic-pain-efficacy-at-three-years-follow-up
#1
Vasco Abreu, Rui Vaz, Virgínia Rebelo, Maria José Rosas, Clara Chamadoira, Martin J Gillies, Tipu Z Aziz, Erlick A C Pereira
OBJECT: Chronic neuropathic pain is estimated to affect 3-4.5% of the worldwide population, posing a serious burden to society. Deep Brain Stimulation (DBS) is already established for movement disorders and also used to treat some "off-label" conditions. However, DBS for the treatment of chronic, drug refractory, neuropathic pain, has shown variable outcomes with few studies performed in the last decade. Thus, this procedure has consensus approval in parts of Europe but not the USA. This study prospectively evaluated the efficacy at three years of DBS for neuropathic pain...
June 20, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28621025/dorsal-root-ganglion-stimulation-as-a-salvage-treatment-for-complex-regional-pain-syndrome-refractory-to-dorsal-column-spinal-cord-stimulation-a-case-series
#2
Ajax Yang, Corey W Hunter
OBJECTIVE: The efficacy of traditional spinal cord stimulation (t-SCS) tends to decay over time in patients with complex regional pain syndrome (CRPS). While it has been shown that dorsal root ganglion (DRG) stimulation is extremely effective in t-SCS-naïve patients with CRPS, its efficacy in patients who had previously failed t-SCS is unknown. Given that DRG-SCS and t-SCS target different spinal pathways, a failure with t-SCS should not automatically preclude a patient from attempting DRG-SCS...
June 16, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28580703/external-trigeminal-nerve-stimulation-for-the-acute-treatment-of-migraine-open-label-trial-on-safety-and-efficacy
#3
Denise E Chou, Giti J Gross, Camilla H Casadei, Marianna Shnayderman Yugrakh
OBJECTIVE: The aim of the current study is to assess the safety and efficacy of external trigeminal nerve stimulation (e-TNS) via a transcutaneous supraorbital stimulator as an acute treatment for migraine attacks. MATERIALS AND METHODS: This was a prospective, open-labeled clinical trial conducted at the Columbia University Headache Center (NY, USA). Thirty patients who were experiencing an acute migraine attack with or without aura were treated with a one-hour session of e-TNS (CEFALY Technology) at the clinic...
June 5, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28580648/paired-associative-stimulation-delivered-by-pairing-movement-related-cortical-potentials-with-peripheral-electrical-stimulation-an-investigation-of-the-duration-of-neuromodulatory-effects
#4
Sharon Olsen, Nada Signal, Imran Khan Niazi, Thomas Christensen, Mads Jochumsen, Denise Taylor
BACKGROUND: Novel paired associative stimulation (novel-PAS), delivered by pairing movement-related cortical potentials (MRCPs) with electrical stimulation of somatosensory afferents, is an innovative neuromodulatory intervention. Novel-PAS results in increased corticomotor excitability and has potential as a rehabilitative adjunct to improve outcomes following stroke. The duration of its excitatory effect has important implications for how this novel PAS intervention might be applied within a traditional therapy session, but previous research has not explored its effects beyond 30 min post-intervention...
June 5, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28568898/conventional-and-novel-spinal-stimulation-algorithms-hypothetical-mechanisms-of-action-and-comments-on-outcomes
#5
REVIEW
Bengt Linderoth, Robert D Foreman
OBJECTIVE: Spinal cord stimulation (SCS) emerged as a direct clinical spin-off from the Gate Control Theory from 1965. Over the last decade, several new modes of SCS have appeared. This review discusses these novel techniques and their hypothetical mechanisms of action. MATERIAL AND METHODS: A recent literature search on SCS coupled with the most recent data from poster presentations and congress lectures have been used to illustrate new hypothetical ways of modulating pain...
May 31, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28560830/intrathecal-opioid-therapy-for-non-malignant-chronic-pain-a-long-term-perspective
#6
Barbara Kleinmann, Tilman Wolter
OBJECTIVES: Many patients with intrathecal opioid pumps do adhere to the therapy for many years but there is scarce knowledge about the long-term effects of intrathecal opioid therapy (IOT) of more than three years. We sought to assess the long-term efficacy and the presence of typical side-effects and complications of IOT. METHODS: A chart review was conducted on all patients with intrathecal opioid pumps that had been treated at our institution between 1.11.1990 and 31...
May 30, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28557242/unexpected-complications-of-novel-deep-brain-stimulation-treatments-ethical-issues-and-clinical-recommendations
#7
REVIEW
Hannah Maslen, Binith Cheeran, Jonathan Pugh, Laurie Pycroft, Sandra Boccard, Simon Prangnell, Alexander L Green, James FitzGerald, Julian Savulescu, Tipu Aziz
BACKGROUND: Innovative neurosurgical treatments present a number of known risks, the natures and probabilities of which can be adequately communicated to patients via the standard procedures governing obtaining informed consent. However, due to their novelty, these treatments also come with unknown risks, which require an augmented approach to obtaining informed consent. OBJECTIVE: This paper aims to discuss and provide concrete procedural guidance on the ethical issues raised by serious unexpected complications of novel deep brain stimulation treatments...
May 30, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28557049/left-dorsolateral-prefrontal-cortex-rtms-in-alleviating-mtbi-related-headaches-and-depressive-symptoms
#8
Albert Leung, Valerie Metzger-Smith, Yifan He, James Cordero, Brandon Ehlert, David Song, Lisa Lin, Golshan Shahrokh, Alice Tsai, Michael Vaninetti, Thomas Rutledge, Greg Polston, Robert Sheu, Roland Lee
OBJECTIVE: Persistent mild traumatic brain injury related headache (MTBI-HA) represents a neuropathic pain state. This study tested the hypothesis that repetitive transcranial magnetic stimulation (rTMS) at the left prefrontal cortex can alleviate MTBI-HA and associated neuropsychological dysfunctions. METHODS AND MATERIALS: Veterans with MTBI-HA were randomized to receive four sessions of either real (REAL group) or sham (SHAM group) high frequency rTMS delivered at 10 Hz, 80% of resting motor threshold and 2000 pulses per session at >24 and <72 hours apart...
May 30, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28547853/the-efficacy-of-high-density-spinal-cord-stimulation-among-trial-implant-and-conversion-patients-a-retrospective-case-series
#9
David A Provenzano, Jared Rebman, Cody Kuhel, Hilary Trenz, Jason Kilgore
OBJECTIVES: Methods of energy delivery for traditional spinal cord stimulation (SCS) systems consist of adjusting programming parameters to affect the total charge delivered per unit time. One high electrical charge delivery method being considered is subthreshold high density (HD) programming. To date, there is limited clinical evidence for the efficacy and safety of paresthesia-free HD programming. The aim of this study was to examine the efficacy and safety of HD programming. MATERIALS AND METHODS: A retrospective review was performed on HD-programmed SCS patients with a minimum of one year follow-up...
May 25, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28544432/are-10-khz-stimulation-and-burst-stimulation-fundamentally-the-same
#10
REVIEW
Dirk De Ridder, Sanjaya Perera, Sven Vanneste
BACKGROUND: Spinal cord stimulation (SCS) is routinely used for intractable pain syndromes. For SCS to be efficacious the painful area needs to be covered by SCS induced paresthesia symptoms. Recently, novel stimulation designs have been developed for spinal cord stimulation (SCS) that are superior to classical spinal cord stimulation and exert their effects without the mandatory paresthesia. Two such stimulation designs are burst stimulation and 10 kHz stimulation. OBJECTIVE: Whereas the mechanism of action of burst SCS has been partly elucidated, in that it modulates the medial pain pathway in contrast to tonic stimulation, the mechanism of action of 10 kHz SCS is still enigmatic...
May 25, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28544182/burst-or-high-frequency-10-khz-spinal-cord-stimulation-in-failed-back-surgery-syndrome-patients-with-predominant-back-pain-one-year-comparative-data
#11
Sajjad Muhammad, Sandra Roeske, Shafqat Rasul Chaudhry, Thomas Mehari Kinfe
OBJECTIVES: Burst and 10 kHz spinal cord stimulation (SCS) demonstrated improvement for failed back surgery syndrome (FBSS) with predominant, refractory back pain. Here, we report the long-term follow-up of a previously published study comparing the safety and efficacy of burst vs. 10 kHz SCS for predominant back pain (70% of global pain) of FBSS patients. METHODS: This comparative, observational study extended the follow-up period up to 20 months evaluating both SCS modalities...
May 24, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28524457/cyclization-of-motor-cortex-stimulation-for-neuropathic-pain-a-prospective-randomized-blinded-trial
#12
Zurab Ivanishvili, Anujan Poologaindran, Christopher R Honey
OBJECTIVES: Programming guidelines for motor cortex stimulation (MCS) in neuropathic pain requires further investigation. After optimizing voltage as a percentage of motor threshold, we evaluated the effect of cyclizing time of stimulation on pain relief for chronic neuropathic pain. METHODS: Six patients were enrolled into this trial. In a prospective, randomized, double-blinded manner, patients were programmed to receive stimulation 100, 83.3, 66.7, or 50% of the time in 30-min intervals...
May 19, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28516669/state-of-the-art-novel-applications-for-deep-brain-stimulation
#13
REVIEW
Holly A Roy, Alexander L Green, Tipu Z Aziz
OBJECTIVES: Deep brain stimulation (DBS) is a rapidly developing field of neurosurgery with potential therapeutic applications that are relevant to conditions traditionally viewed as beyond the limits of neurosurgery. Our objective, in this review, is to highlight some of the emerging applications of DBS within three distinct but overlapping spheres, namely trauma, neuropsychiatry, and autonomic physiology. REVIEW METHODS: An extensive literature review was carried out in MEDLINE, to identify relevant studies and review articles describing applications of DBS in the areas of trauma, neuropsychiatry and autonomic neuroscience...
May 17, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28497554/shaking-up-the-debate-ensuring-the-ethical-use-of-dbs-intervention-criteria-for-mid-stage-parkinson-s-patients
#14
REVIEW
Marleen Eijkholt, Laura Y Cabrera, Adolfo Ramirez-Zamora, Julie G Pilitsis
OBJECTIVES: Deep brain stimulation (DBS) is a well-established treatment for the management of severe motor fluctuations in advanced Parkinson's disease (PD). Until recently, device regulation, medical, and insurance practices limited DBS to patients with advanced stages of PD. In February 2016 this changed, however, when the US Food and Drug Administration (FDA) granted formal approval for the use of brain stimulator in mid-stage PD patients. In this article, we examine whether DBS in mid-stage PD can be ethically justified beyond the FDA approval...
May 11, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28493599/spinal-cord-stimulator-implant-infection-rates-and-risk-factors-a-multicenter-retrospective-study
#15
Bryan C Hoelzer, Mark A Bendel, Timothy R Deer, Jason S Eldrige, David R Walega, Zhen Wang, Shrif Costandi, Gerges Azer, Wenchun Qu, Steven M Falowski, Stephanie A Neuman, Susan M Moeschler, Catherine Wassef, Christopher Kim, Tariq Niazi, Taher Saifullah, Brian Yee, Chong Kim, Christine L Oryhan, Joshua M Rosenow, Daniel T Warren, Imanuel Lerman, Ruben Mora, Salim M Hayek, Michael Hanes, Thomas Simopoulos, Sanjiv Sharma, Chris Gilligan, Warren Grace, Timothy Ade, Nagy A Mekhail, John P Hunter, Daniel Choi, Deborah Y Choi
OBJECTIVES: Spinal cord stimulation is an evidence-based treatment for a number of chronic pain conditions. While this therapy offers improvement in pain and function it is not without potential complications. These complications include device failure, migration, loss of therapeutic paresthesia, and infection. This article looked to establish a modern infection rate for spinal cord stimulators, assess the impact of known risk factors for surgical site infections and to determine the impact of certain preventative measures on the rate of infection...
May 11, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28493348/effect-of-eye-opening-on-single-unit-activity-and-local-field-potentials-in-the-subthalamic-nucleus
#16
Arun Chockalingam, Abigail Belasen, Nita Chen, Adolfo Ramirez-Zamora, Youngwon Youn, Paul Feustel, Meghan E Wilock, Damian S Shin, Julie G Pilitsis
BACKGROUND: Subthalamic nucleus deep brain stimulation (STN DBS) is an established treatment in Parkinson's disease (PD). We investigate the effect of eye opening on neuronal activity and local field potentials (LFPs) in the STN. METHODS: We prospectively enrolled 25 PD patients undergoing STN DBS in our institution. During DBS, single-unit activity (SUA) and LFPs were measured when eyes were open and closed. As movement is known to result in changes in LFPs, we tested response to eye opening in the presence and absence of movement...
May 10, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28480524/stratifying-parkinson-s-patients-with-stn-dbs-into-high-frequency-or-60-hz-frequency-modulation-using-a-computational-model
#17
Anahita Khojandi, Oleg Shylo, Lucia Mannini, Brian H Kopell, Ritesh A Ramdhani
OBJECTIVE: High frequency stimulation (HFS) of the subthalamic nucleus (STN) is a well-established therapy for Parkinson's disease (PD), particularly the cardinal motor symptoms and levodopa induced motor complications. Recent studies have suggested the possible role of 60 Hz stimulation in STN-deep brain stimulation (DBS) for patients with gait disorder. The objective of this study was to develop a computational model, which stratifies patients a priori based on symptomatology into different frequency settings (i...
May 8, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28466562/subsequent-pulse-generator-replacement-surgery-does-not-increase-the-infection-rate-in-patients-with-deep-brain-stimulator-systems-a-review-of-1537-unique-implants-at-a-single-center
#18
Leonardo A Frizon, Olivia Hogue, Connor Wathen, Erin Yamamoto, Navin C Sabharwal, Jaes Jones, Josephine Volovetz, Andres L Maldonado-Naranjo, Darlene A Lobel, Andre G Machado, Sean J Nagel
INTRODUCTION: Deep brain stimulation (DBS) is a well-recognized treatment for patients with movement disorders and other neurological diseases. The implantable pulse generator (IPG) is a fundamental component of the DBS system. Although IPG implantation and replacement surgeries are comparatively minor procedures relative to the brain lead insertion, patients often require multiple IPG replacements during their lifetime with each operation carrying a small but possibly cumulative risk of complications...
May 3, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28464357/effect-of-multicolumn-lead-spinal-cord-stimulation-on-low-back-pain-in-failed-back-surgery-patients-a-three-year-follow-up
#19
Thibault Yves Remacle, Vincent Luce Bonhomme, Henri-Jean Paul Renwart, Jean Michel Remacle
OBJECTIVES: Spinal cord stimulation (SCS) remains poorly efficient at reducing back pain in failed back surgery syndrome (FBSS) patients. We aimed at determining whether a new multicolumn lead SCS technique was efficient at durably reducing their leg (LP) and back (BP) pain. MATERIALS AND METHODS: Sixty-two consecutive refractory FBSS patients received multicolumn SCS. Visual analogue scale (VAS) self-evaluation of BP, LP, and limitation of daily activity (LAD) were recorded preoperatively and at 2, 6, 12, 24, and 36 months after surgery...
May 2, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28425137/three-dimensional-printing-an-aid-to-epidural-access-for-neuromodulation
#20
Murray G Taverner, John P Monagle
OBJECTIVE: The case report details to use of three-dimensional (3D) printing as an aid to neuromodulation. METHODS: A patient is described in whom previous attempts at spinal neuromodulation had failed due to lack of epidural or intrathecal access, and the use of a 3D printed model allowed for improved planning and ultimately, success. RESULTS: Successful spinal cord stimulation was achieved with the plan developed by access to a 3D model of the patient's spine...
April 20, 2017: Neuromodulation: Journal of the International Neuromodulation Society
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