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Neuromodulation: Journal of the International Neuromodulation Society

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https://read.qxmd.com/read/30762923/dorsal-root-ganglion-stimulation-as-a-potentially-effective-treatment-for-painful-hereditary-and-idiopathic-axonal-polyneuropathy-a-retrospective-case-series
#1
Kwo Wei David Ho, Torge Rempe, Nivedita Jerath, Ajay Antony
OBJECTIVES: Dorsal root ganglion (DRG) stimulation has been demonstrated to be effective in treating painful diabetic polyneuropathy in a small case series. However, diabetic polyneuropathy only accounts for 41% of all polyneuropathies and the efficacy of DRG on other types of polyneuropathy is unclear. The objective of this study is to evaluate the efficacy of DRG stimulation in treating painful hereditary and idiopathic axonal polyneuropathy. MATERIALS AND METHODS: This is a monocentric retrospective case series...
February 14, 2019: Neuromodulation: Journal of the International Neuromodulation Society
https://read.qxmd.com/read/30748045/medical-methods-patents-in-neuromodulation
#2
REVIEW
Dylan Roskams-Edris, Stacey Anderson-Redick, Judy Illes, Zelma Ht Kiss
There is a rapidly growing number of patents on methods of modulating brain regions. Despite this trend, and the massive potential of neuromodulation for treating patients, researchers and physicians who use neuromodulation techniques and technologies often have little idea of the significant ways these patents could affect their work. This article describes medical method patents, including a brief history of their development, and analyzes their potential direct and indirect effects on neuromodulation treatment and research efforts...
February 12, 2019: Neuromodulation: Journal of the International Neuromodulation Society
https://read.qxmd.com/read/30742344/effects-of-high-and-low-frequency-stimulation-of-the-thalamic-reticular-nucleus-on-pentylentetrazole-induced-seizures-in-rats
#3
Víctor Manuel Magdaleno-Madrigal, Gerardo Contreras-Murillo, Alejandro Valdés-Cruz, David Martínez-Vargas, Adrián Martínez, Benjamín Villasana-Salazar, Salvador Almazán-Alvarado
RATIONALE: The use of electrical stimulation therapy to treat epilepsy is currently being studied in experimental animals and patients. Our study was designed to evaluate the effects of electrical stimulation applied in the thalamic reticular nucleus (TRN) on the development of pentylentetrazole-induced seizures. MATERIALS AND METHODS: Experiments were performed using male Wistar rats with electrodes stereotaxically implanted in the left TRN. Epidural EEG recording screws were implanted in the motor cortex for EEG recording...
February 11, 2019: Neuromodulation: Journal of the International Neuromodulation Society
https://read.qxmd.com/read/30701655/an-acute-randomized-controlled-trial-of-noninvasive-peripheral-nerve-stimulation-in-essential-tremor
#4
Rajesh Pahwa, Rohit Dhall, Jill Ostrem, Ryder Gwinn, Kelly Lyons, Susie Ro, Cameron Dietiker, Nijee Luthra, Paula Chidester, Samuel Hamner, Erika Ross, Scott Delp
OBJECTIVE: To evaluate the safety and effectiveness of a wrist-worn peripheral nerve stimulation device in patients with essential tremor (ET) in a single in-office session. METHODS: This was a randomized controlled study of 77 ET patients who received either treatment stimulation (N = 40) or sham stimulation (N = 37) on the wrist of the hand with more severe tremor. Tremor was evaluated before and immediately after the end of a single 40-minute stimulation session...
January 30, 2019: Neuromodulation: Journal of the International Neuromodulation Society
https://read.qxmd.com/read/30701632/dorsal-root-ganglion-stimulation-is-paresthesia-independent-a-retrospective-study
#5
Paul Verrills, Bruce Mitchell, David Vivian, William Cusack, Jeffery Kramer
INTRODUCTION: Neuromodulation is an important tool for achieving pain relief in otherwise-intractable neuropathic pain conditions. Dorsal root ganglion (DRG) stimulation, in which primary sensory neurons are stimulated prior to their entry into the spinal canal, provides treatment with high levels of dermatomal specificity and can provide advantages compared to conventional spinal cord stimulation. Although DRG stimulation can produce perceptible paresthesias, many patients operate their systems at subthreshold amplitudes that do not elicit this sensation...
January 30, 2019: Neuromodulation: Journal of the International Neuromodulation Society
https://read.qxmd.com/read/30681234/extracorporeal-shockwave-lithotripsy-procedure-in-children-with-intrathecal-baclofen-pump
#6
LETTER
Marta González-Pombo, Javier Márquez-Rivas
No abstract text is available yet for this article.
January 25, 2019: Neuromodulation: Journal of the International Neuromodulation Society
https://read.qxmd.com/read/30637862/brain-activity-and-clinical-outcomes-in-adults-with-depression-treated-with-synchronized-transcranial-magnetic-stimulation-an-exploratory-study
#7
Ian A Cook, Andrew C Wilson, Juliana Corlier, Andrew F Leuchter
BACKGROUND: Synchronized transcranial magnetic stimulation (sTMS) imparts low-amplitude magnetic stimulation matched to each patient's individual alpha frequency. It may act through entrainment of brain oscillations. OBJECTIVES: To explore sTMS effects on neurophysiology with electroencephalography (EEG) in adults with major depressive disorder. METHODS: As an ancillary study to a clinical trial of sTMS, EEGs were recorded at baseline and at one and six weeks of treatment...
January 13, 2019: Neuromodulation: Journal of the International Neuromodulation Society
https://read.qxmd.com/read/30632655/durotomy-surrogate-and-seals-for-intradural-spinal-cord-stimulators-apparatus-and-review-of-clinical-methods-and-materials
#8
Sean J Nagel, Logan Helland, Royce W Woodroffe, Leonardo A Frizon, Marshall T Holland, Andre G Machado, Satoshi Yamaguchi, George T Gillies, Matthew A Howard, Saul Wilson
INTRODUCTION: We are developing a novel intradural spinal cord stimulator for treatment of neuropathic pain and spasticity. A key feature is the means by which it seals the dura mater to prevent leakage of cerebrospinal fluid (CSF). We have built and employed a test rig that enables evaluation of candidate seal materials. METHODS: To guide the design of the test rig, we reviewed the literature on neurosurgical durotomies. The test rig has a mock durotomy slot with a dural substitute serving as the surrogate dura mater and water as the CSF...
January 11, 2019: Neuromodulation: Journal of the International Neuromodulation Society
https://read.qxmd.com/read/30629330/accuracy-of-intraoperative-computed-tomography-in-deep-brain-stimulation-a-prospective-noninferiority-study
#9
Naomi I Kremer, D L Marinus Oterdoom, Peter Jan van Laar, Dan Piña-Fuentes, Teus van Laar, Gea Drost, Arjen L J van Hulzen, J Marc C van Dijk
INTRODUCTION: Clinical response to deep brain stimulation (DBS) strongly depends on the appropriate placement of the electrode in the targeted structure. Postoperative MRI is recognized as the gold standard to verify the DBS-electrode position in relation to the intended anatomical target. However, intraoperative computed tomography (iCT) might be a feasible alternative to MRI. MATERIALS AND METHODS: In this prospective noninferiority study, we compared iCT with postoperative MRI (24-72 hours after surgery) in 29 consecutive patients undergoing placement of 58 DBS electrodes...
January 10, 2019: Neuromodulation: Journal of the International Neuromodulation Society
https://read.qxmd.com/read/30629320/burst-or-conventional-peripheral-nerve-field-stimulation-for-treatment-of-neuropathic-facial-pain
#10
Andrew Manning, James Fitzgerald, Alexander Green, Tipu Aziz, Stana Bojanic, Rodrigo Ortega Garcia, Liz Moir, Tamara Edwards
BACKGROUND: Trigeminal Neuropathic Pain (TNP) is a chronic facial pain syndrome caused by a lesion or disease affecting one or more branches of the trigeminal nerve. It may, for example, result from accidental injury to a branch of the trigeminal nerve by trauma or during surgery; it may also be idiopathic. TNP is typically constant, in contrast to most cases of the commoner trigeminal neuralgia. In some cases, pain may be refractory to pharmacological treatment. Peripheral nerve field stimulation is recognized as an effective minimally invasive surgical treatment option for this debilitating condition...
January 10, 2019: Neuromodulation: Journal of the International Neuromodulation Society
https://read.qxmd.com/read/30624003/comparison-of-paresthesia-coverage-of-patient-s-pain-dorsal-root-ganglion-vs-spinal-cord-stimulation-an-accurate-study-sub-analysis
#11
Timothy R Deer, Robert M Levy, Jeffery Kramer, Lawrence Poree, Kasra Amirdelfan, Eric Grigsby, Peter Staats, Abram H Burgher, James Scowcroft, Stan Golovac, Leonardo Kapural, Richard Paicius, Jason E Pope, Sam Samuel, William Porter McRoberts, Michael Schaufele, Allen W Burton, Adil Raza, Filippo Agnesi, Nagy Mekhail
OBJECTIVES: This was a sub-analysis of the ACCURATE clinical trial that evaluated the accuracy and necessity of targeting paresthesia coverage of painful areas with dorsal root ganglion (DRG) stimulation vs. tonic spinal cord stimulation (SCS). MATERIALS AND METHODS: On diagrams of the torso and lower limbs, subjects marked where they felt pain at baseline and paresthesias at three months postimplant. Seventy-five subjects (41 DRG and 34 SCS) with diagrams of sufficient quality were scanned, digitized, and included in this analysis...
January 9, 2019: Neuromodulation: Journal of the International Neuromodulation Society
https://read.qxmd.com/read/30620789/cervical-and-high-thoracic-dorsal-root-ganglion-stimulation-in-chronic-neuropathic-pain
#12
Guilherme Santos Piedade, Jan Vesper, Apostolos Chatzikalfas, Philipp J Slotty
INTRODUCTION: Dorsal root ganglion stimulation is a meanwhile established but rather new technique of neuromodulation to treat chronic pain states of different origin. While being primarily used in the lumbar region, dorsal root ganglion (DRG) stimulation also can be used in the upper thoracic and cervical region with slight alterations of the surgical approach. This offers new therapeutic options especially in the treatment of neuropathic pain states of the upper extremities. Data on surgical technique, outcome and complications rates of DRG in this region are limited...
January 8, 2019: Neuromodulation: Journal of the International Neuromodulation Society
https://read.qxmd.com/read/30620420/serum-level-of-metalloproteinase-2-but-not-metalloproteinase-9-rises-in-patients-with-failed-back-surgery-syndrome-after-spinal-cord-stimulation
#13
Piotr Kamieniak, Joanna Bielewicz, Jacek Kurzepa, Beata Daniluk, Joanna Kocot, Tomasz Trojanowski
OBJECTIVES: The impact of spinal cord stimulation (SCS) on serum levels of metalloproteinase-2 (MMP-2) and metalloproteinase-9 (MMP-9) was assessed in a group of patients with failed back surgery syndrome (FBSS). The study was to give new insights into the SCS mechanism of action and the role of MMP-2 and MMP-9 in the development of NP. MATERIAL AND METHODS: Clinical assessments were performed and biochemical markers were determined in two groups of patients: the control group (24 individuals) and the FBSS group (24 patients)...
January 8, 2019: Neuromodulation: Journal of the International Neuromodulation Society
https://read.qxmd.com/read/30609180/results-of-sacral-neuromodulation-therapy-for-urinary-voiding-dysfunction-five-year-experience-of-a-retrospective-multicenter-study-in-china
#14
Peng Zhang, Jian-Ye Wang, Yaoguang Zhang, Limin Liao, Jian-Wei Lv, Qing Ling, Zhong-Qing Wei, Tie Zhong, Zhi-Hui Xu, Wei Wen, Jia-Yi Li, De-Yi Luo
PURPOSE: This five-year, retrospective, multicenter study evaluated the long-term safety and efficiency of sacral neuromodulation (SNM) in Chinese patients with urinary voiding dysfunction. PATIENTS AND METHODS: This is a Chinese national, multicenter, retrospective study that included 247 patients (51.2% female) who received an implantable pulse generator (IPG) (InterStim, Medtronic, Minneapolis, MN, USA) between 2012 and 2016. Success was considered if the initial ≥50% improvement in any of primary voiding diary variables persisted compared with baseline...
January 4, 2019: Neuromodulation: Journal of the International Neuromodulation Society
https://read.qxmd.com/read/30609120/accuracy-in-pinch-force-control-can-be-altered-by-static-magnetic-field-stimulation-over-the-primary-motor-cortex
#15
Kento Nakagawa, Atsushi Sasaki, Kimitaka Nakazawa
OBJECTIVE: Transcranial static magnetic field stimulation (tSMS) has recently been demonstrated to modulate cortical excitability and perceptual functions in humans, however, the effect of tSMS on motor behavior is still unknown. We investigated whether tSMS over the primary motor cortex (M1) alters voluntary ballistic force control. MATERIALS AND METHODS: Twenty healthy participants performed ballistic pinch contractions in both hands alternatively at a predetermined submaximal force level and without visual feedback, before, during and after tSMS and sham interventions...
January 4, 2019: Neuromodulation: Journal of the International Neuromodulation Society
https://read.qxmd.com/read/30586207/computational-study-of-the-effect-of-electrode-polarity-on-neural-activation-related-to-paresthesia-coverage-in-spinal-cord-stimulation-therapy
#16
Jose L Durá, Carmen Solanes, Jose De Andrés, Javier Saiz
OBJECTIVE: Using computer simulation, we investigated the effect of electrode polarity on neural activation in spinal cord stimulation and propose a new strategy to maximize the activating area in the dorsal column (DC) and, thus, paresthesia coverage in clinical practice. MATERIALS AND METHODS: A new three-dimensional spinal cord model at the T10 vertebral level was developed to simulate neural activation induced by the electric field distribution produced by different typical four-contact electrode polarities in single- and dual-lead stimulation...
December 26, 2018: Neuromodulation: Journal of the International Neuromodulation Society
https://read.qxmd.com/read/30570187/dorsal-root-ganglion-stimulation-in-experimental-painful-diabetic-peripheral-neuropathy-burst-vs-conventional-stimulation-paradigm
#17
Glenn Franken, Jacques Debets, Elbert A J Joosten
OBJECTIVES: Painful diabetic peripheral neuropathy (PDPN) is a long-term complication of diabetes mellitus (DM). Dorsal Root Ganglion Stimulation (DRGS) has recently emerged as a neuromodulation modality in the treatment of chronic neuropathic pain. The objective of this study was to compare the effect of burst DRGS (Burst-DRGS) and conventional DRGS (Con-DRGS) in an experimental model of PDPN. MATERIALS AND METHODS: DM was induced in female Sprague-Dawley rats by intraperitoneal injection of streptozotocin (STZ, n = 48)...
December 20, 2018: Neuromodulation: Journal of the International Neuromodulation Society
https://read.qxmd.com/read/30561852/neurophysiological-effects-of-dorsal-root-ganglion-stimulation-drgs-in-pain-processing-at-the-cortical-level
#18
Matthias Hubert Morgalla, Marcos Fortunato de Barros Filho, Bankim Subhash Chander, Surjo Raphael Soekadar, Marcos Tatagiba, Guilherme Lepski
OBJECTIVES: Dorsal root ganglion stimulation (DRGS) has been used successfully against localized neuropathic pain. Nevertheless, the effects of DRGS on pain processing, particularly at the cortical level, remain largely unknown. In this study, we investigated whether positive responses to DRGS treatment would alter patients' laser-evoked potentials (LEP). METHODS: We prospectively enrolled 12 adult patients with unilateral localized neuropathic pain in the lower limbs or inguinal region and followed them up for six months...
December 18, 2018: Neuromodulation: Journal of the International Neuromodulation Society
https://read.qxmd.com/read/30556623/successful-burst-spinal-cord-stimulation-in-refractory-angina
#19
LETTER
Yousef Abusabha, Philipp J Slotty
No abstract text is available yet for this article.
December 17, 2018: Neuromodulation: Journal of the International Neuromodulation Society
https://read.qxmd.com/read/30556616/the-impact-of-electrical-charge-delivery-on-inhibition-of-mechanical-hypersensitivity-in-nerve-injured-rats-by-sub-sensory-threshold-spinal-cord-stimulation
#20
Zhiyong Chen, Qian Huang, Fei Yang, Christine Shi, Eellan Sivanesan, Shuguang Liu, Xueming Chen, Sridevi V Sarma, Louis P Vera-Portocarrero, Bengt Linderoth, Srinivasa N Raja, Yun Guan
OBJECTIVES: Spinal cord stimulation (SCS) represents an important neurostimulation therapy for pain. A new ultra-high frequency (10,000 Hz) SCS paradigm has shown improved pain relief without eliciting paresthesia. We aim to determine whether sub-sensory threshold SCS of lower frequencies also can inhibit mechanical hypersensitivity in nerve-injured rats and examine how electric charge delivery of stimulation may affect pain inhibition by different patterns of subthreshold SCS. MATERIALS AND METHODS: We used a custom-made quadripolar electrode (Medtronic Inc...
December 17, 2018: Neuromodulation: Journal of the International Neuromodulation Society
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