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High frequency spinal cord stimulation

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https://www.readbyqxmd.com/read/29126228/prospective-randomized-blind-effect-on-outcome-study-of-conventional-vs-high-frequency-spinal-cord-stimulation-in-patients-with-pain-and-disability-due-to-failed-back-surgery-syndrome
#1
Jose De Andres, Vicente Monsalve-Dolz, Gustavo Fabregat-Cid, Vicente Villanueva-Perez, Anushik Harutyunyan, Juan Marcos Asensio-Samper, Nerea Sanchis-Lopez
Objectives: Spinal cord stimulation (SCS) for patients with failed back surgery syndrome (FBSS) show variable results and limited to moderate evidence. In the last years the stimulation of high frequency (HF) has been considered as a better alternative in this pathology for its supposed benefits compared to the stimulation with conventional frequency (CF). To compare in one year follow-up, the efficacy of high-frequency SCS (HF) versus conventional frequency SCS (CF) on the patients with FBSS...
November 4, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/29110687/effects-of-high-frequency-transcranial-magnetic-stimulation-on-functional-performance-in-individuals-with-incomplete-spinal-cord-injury-study-protocol-for-a-randomized-controlled-trial
#2
Amanda Vitória Lacerda de Araújo, Valéria Ribeiro Nogueira Barbosa, Gilma Serra Galdino, Felipe Fregni, Thais Massetti, Sara Lynn Fontes, Danilo de Oliveira Silva, Talita Dias da Silva, Carlos Bandeira de Mello Monteiro, James Tonks, Fernando Henrique Magalhães
BACKGROUND: Repetitive transcranial magnetic stimulation (rTMS) has been investigated as a new tool in neurological rehabilitation of individuals with spinal cord injury (SCI). However, due to the inconsistent results regarding the effects of rTMS in people with SCI, a randomized controlled double-blind crossover trial is needed to clarify the clinical utility and to assess the effect size of rTMS intervention in this population. Therefore, this paper describes a study protocol designed to investigate whether the use of rTMS can improve the motor and sensory function, as well as reduce spasticity in patients with incomplete SCI...
November 6, 2017: Trials
https://www.readbyqxmd.com/read/29106051/treatment-of-chronic-refractory-neuropathic-pelvic-pain-with-high-frequency-10-kilohertz-spinal-cord-stimulation
#3
Thomas Simopoulos, Jason Yong, Jatinder S Gill
Chronic non-malignant pain perceived in the pelvic region commonly presents as a diagnostic challenge and is often difficult to manage. Treatment options are delayed as well as limited. The prevalence in the United States and the United Kingdom has been estimated to range from 14.7 % to 24% respectively (1, 2). Common chronic pelvic pain syndromes include interstitial cystitis, chronic prostatitis, coccygodynia, vulvodynia, chronic proctalgia, and pudendal neuralgia. This article is protected by copyright. All rights reserved...
November 6, 2017: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/29105244/spinal-cord-stimulation-for-treating-chronic-pain-reviewing-preclinical-and-clinical-data-on-paresthesia-free-high-frequency-therapy
#4
REVIEW
Krishnan Chakravarthy, Hira Richter, Paul J Christo, Kayode Williams, Yun Guan
BACKGROUND: Traditional spinal cord stimulation (SCS) requires that paresthesia overlaps chronic painful areas. However, the new paradigm high-frequency SCS (HF-SCS) does not rely on paresthesia. STUDY DESIGN: A review of preclinical and clinical studies regarding the use of paresthesia-free HF-SCS for various chronic pain states. METHODS: We reviewed available literatures on HF-SCS, including Nevro's paresthesia-free ultra high-frequency 10 kHz therapy (HF10-SCS)...
November 3, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/29077889/long-term-improvements-in-chronic-axial-low-back-pain-patients-without-previous-spinal-surgery-a-cohort-analysis-of-10-khz-high-frequency-spinal-cord-stimulation-over-36%C3%A2-months
#5
Adnan Al-Kaisy, Stefano Palmisani, Thomas E Smith, Roy Carganillo, Russell Houghton, David Pang, William Burgoyne, Khai Lam, Jonathan Lucas
Objective: This prospective, open-label study was designed to evaluate the long-term effectiveness of 10-kHz high-frequency spinal cord stimulation (SCS) in the treatment of chronic axial low back pain with no history of spinal surgery. Methods: Patients with chronic low back pain without previous spinal surgery underwent assessment by a multidisciplinary pain and surgical team to confirm eligibility. After a successful temporary trial of 10-kHz HF-SCS therapy, defined by ≥50% back pain reduction, enrolled subjects underwent permanent system implantation and were followed up for 36 months...
October 24, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/29058295/effects-of-high-frequency-repetitive-transcranial-magnetic-stimulation-on-kcc2-expression-in-rats-with-spasticity-following-spinal-cord-injury
#6
Wei Gao, Li-Guo Yu, Ya-Li Liu, Mo Chen, Yi-Zhao Wang, Xiao-Lin Huang
The effect of high-frequency repetitive transcranial magnetic stimulation (rTMS) on potassium- chloride cotransporter-2 (KCC2) protein expression following spinal cord injury (SCI) and the action mechanism were investigated. SCI models were established in SD rats. Five groups were set up randomly: normal control group, SCI 7-day (7D) model group, SCI 14-day (14D) model group, SCI-7D rTMS group and SCI-14D rTMS group (n=5 each). The rats in SCI rTMS groups were treated with 10 Hz rTMS from 8th day and 15th day after SCI respectively, once every day, 5 days every week, a total of 4 weeks...
October 2017: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/29026048/spinal-cord-stimulation-for-chronic-non-cancer-pain-a-review-of-current-evidence-and-practice
#7
S Sc Wong, C W Chan, C W Cheung
Spinal cord stimulation provides analgesia through electrical stimulation of the dorsal column of the spinal cord via electrode leads placed into the epidural space. In traditional tonic stimulation, a painful sensation is replaced with paraesthesia. Spinal cord stimulation is effective in reducing neuropathic pain, enhancing function, and improving quality of life in different chronic pain conditions. Currently, there is most evidence to support its use for failed back surgery syndrome when multidisciplinary conventional management is unsuccessful...
October 2017: Hong Kong Medical Journal, Xianggang Yi Xue za Zhi
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
#8
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/28938297/new-advancements-in-spinal-cord-stimulation-for-chronic-pain-management
#9
Jijun Xu, Aijun Liu, Jianguo Cheng
PURPOSE OF REVIEW: To update the recent development of spinal cord stimulation (SCS) technology in the management of chronic pain. RECENT FINDINGS: Efficacy of SCS therapy has been significantly improved by the recent development of high frequency (HF-10 kHz) stimulation, burst stimulation, and dorsal root ganglion (DRG) stimulation. A few latest SCS modalities are in clinical trial. New approaches to guide lead placement and advances in surgical lead are introduced...
December 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28935824/effects-of-expiratory-muscle-activation-via-high-frequency-spinal-cord-stimulation
#10
Krzysztof E Kowalski, Jaroslaw Richard Romaniuk, Tomasz Kowalski, Anthony F DiMarco
In persons with spinal cord injury, lower thoracic low frequency spinal cord stimulation (LF-SCS, 50Hz,15mA) is a useful method to restore an effective cough. Unfortunately, the high stimulus amplitude requirements and potential activation of pain fibers significantly limits this application in persons with intact sensation. In this study, the mechanism of the expiratory muscle activation, via high frequency SCS (HF-SCS;500Hz,1mA) was evaluated in dogs. In group one, the effects of electrode placement on airway pressure generation (P) was evaluated...
September 21, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28872930/inconsistence-between-number-and-function-of-autoreactive-t-cells-in-the-course-of-experimental-autoimmune-encephalomyelitis
#11
Xin Wan, Weiya Pei, Yiming Zhang, Lei Zhang, Khawar Ali Shahzad, Tao Xu, Chuanlai Shen
BACKGROUND: Mouse experimental autoimmune encephalomyelitis (EAE) is widely used model of multiple sclerosis (MS). The role of autoreactive CD4(+) and CD8(+) T cells in the development of mouse EAE has been demonstrated. However, little information is available about the relation between the frequency and reactivity of myelin antigen-reactive CD4(+) and CD8(+) T cells in secondary lymphoid organs and their relevance with the inflammation and pathological lesion of CNS during the course of EAE mouse model...
September 5, 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28834092/therapy-related-explants-after-spinal-cord-stimulation-results-of-an-international-retrospective-chart-review-study
#12
Jean-Pierre Van Buyten, Frank Wille, Iris Smet, Carin Wensing, Jennifer Breel, Edward Karst, Marieke Devos, Katja Pöggel-Krämer, Jan Vesper
OBJECTIVES: Clinical trials of spinal cord stimulation (SCS) have largely focused on conversion from trial to permanent SCS and the first years after implant. This study evaluates the association of type of SCS and patient characteristics with longer-term therapy-related explants. MATERIALS AND METHODS: Implanting centers in three European countries conducted a retrospective chart review of SCS systems implanted from 2010 to 2013. Ethics approval or waiver was obtained, and informed consent was not required...
October 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28809704/kilohertz-electrical-stimulation-nerve-conduction-block-effects-of-electrode-material
#13
Yogi A Patel, Brian S Kim, Robert J Butera
Kilohertz electrical stimulation (KES) has enabled a novel new paradigm for spinal cord and peripheral nerve stimulation to treat a variety of neurological diseases. KES can excite or inhibit nerve activity and is used in many clinical devices today. However, the impact of different electrode materials on the efficacy of KES is unknown. We investigated the effect of different electrode materials and their respective charge injection mechanisms on KES nerve block thresholds using 20 and 40 kHz current-controlled sinusoidal KES waveforms...
August 10, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28762503/mechanomyography-based-wearable-monitor-of-quasi-isometric-muscle-fatigue-for-motor-neural-prostheses
#14
Eddy Krueger, Lana Popović-Maneski, Percy Nohama
A motor neural prosthesis based on surface functional electrical stimulation (sFES) can restore functional movement (e.g., standing, walking) in patients with a spinal cord injury (SCI). sFES generates muscle contractions in antigravity muscles and allows balance-assisted standing. This induced standing has several benefits, such as improved cardiovascular function, decreased incidence of urinary infections, reduced joint contractures, and muscle atrophy. The duration of sFES assisted standing is limited due to the quick onset of muscle fatigue...
August 1, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28716590/lumbar-muscle-inflammation-alters-spinally-mediated-locomotor-recovery-induced-by-training-in-a-mouse-model-of-complete-spinal-cord-injury
#15
Renaud Jeffrey-Gauthier, Mathieu Piché, Hugues Leblond
Locomotor networks after spinal cord injury (SCI) are shaped by training-activated proprioceptive and cutaneous inputs. Nociception from injured tissues may alter these changes but has largely been overlooked. The objective of the present study was to ascertain whether lumbar muscle inflammation hinders locomotion recovery in a mouse model of complete SCI. Lower limb kinematics during treadmill training was assessed before and after complete SCI at T8 (2, 7, 14, 21 and 28days post-injury). Locomotor recovery was compared in 4 groups of CD1 mice: control spinal mice; spinal mice with daily locomotor training; spinal mice with lumbar muscle inflammation (Complete Freund's Adjuvant (CFA) injection); and spinal mice with locomotor training and CFA...
July 15, 2017: Neuroscience
https://www.readbyqxmd.com/read/28615341/high-frequency-epidural-stimulation-across-the-respiratory-cycle-evokes-phrenic-short-term-potentiation-after-incomplete-cervical-spinal-cord-injury
#16
Elisa J Gonzalez-Rothi, Kristi A Streeter, Marie H Hanna, Anna C Stamas, Paul J Reier, David M Baekey, David D Fuller
C2 spinal hemilesion (C2Hx) paralyzes the ipsilateral diaphragm, but recovery is possible through activation of "crossed spinal" synaptic inputs to ipsilateral phrenic motoneurons. We tested the hypothesis that high-frequency epidural stimulation (HF-ES) would potentiate ipsilateral phrenic output after subacute and chronic C2Hx. HF-ES (300 Hz) was applied to the ventrolateral C4 or T2 spinal cord ipsilateral to C2Hx in anesthetized and mechanically ventilated adult rats. Stimulus duration was 60 s, and currents ranged from 100 to 1,000 µA...
October 1, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28568898/conventional-and-novel-spinal-stimulation-algorithms-hypothetical-mechanisms-of-action-and-comments-on-outcomes
#17
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...
August 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
#18
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...
October 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28505029/treatment-options-for-failed-back-surgery-syndrome-patients-with-refractory-chronic-pain-an-evidence-based-approach
#19
Kasra Amirdelfan, Lynn Webster, Lawrence Poree, Vishad Sukul, Porter McRoberts
STUDY DESIGN: A significant number of lumbar postsurgical patients continue to suffer persistent pain and limited function and are termed to have "Failed back surgery syndrome" (FBSS). This review evaluates clinical trial data for the treatment of FBSS patients. OBJECTIVE: Using an evidence-based approach to evaluate FBSS treatments will assist clinicians in choosing the most effective options for FBSS patients. Furthermore, reducing the utilization of less effective therapies may result in substantial financial savings for this patient population...
July 15, 2017: Spine
https://www.readbyqxmd.com/read/28498725/evaluation-of-abbott-s-burstdr-stimulation-device-for-the-treatment-of-chronic-pain
#20
Timothy R Deer, Lucas W Campos, Jason E Pope
Burst stimulation, as described by DeRidder, is a novel waveform made up of closely spaced, high-frequency electrical impulses delivered in packets, which are followed by a quiescent period or interburst interval. Electrically generated burst waveforms were initially designed to treat neural pathology in the auditory cortex and were later applied to the spinal cord through spinal cord stimulation (SCS) devices to treat chronic pain states. When Burst stimulation is applied to the spinal cord, the impulses travel to the thalamus and then diverge, targeting both the somatosensory cortex and the limbic system where they treat both the sensory, affective and attentional components of neuropathic pain...
June 2017: Expert Review of Medical Devices
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