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tDCS and Pain

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https://www.readbyqxmd.com/read/29274881/neurobiological-mechanisms-of-antiallodynic-effect-of-transcranial-direct-current-stimulation-tdcs-in-a-mice-model-of-neuropathic-pain
#1
Andressa de Souza, Daniel F Martins, Liciane Fernandes Medeiros, Catharina Nucci, Thiago César Martins, Aline Siteneski, Wolnei Caumo, Adair Roberto Soares Dos Santos, Iraci L S Torres
BACKGROUND: Neuropathic pain is relatively common and occurs in approximately 6-8% of the population. It is associated with allodynia and hyperalgesia. Thus, non-pharmacological treatments, such as transcranial direct current stimulation (tDCS) may be useful for relieving pain. OBJECTIVES: This study aimed to investigate the antiallodynic effect of tDCS in a mice model of neuropathic pain, and the underlying neurotransmission systems that could drive these effects...
December 21, 2017: Brain Research
https://www.readbyqxmd.com/read/29234136/study-adherence-in-a-tdcs-longitudinal-clinical-trial-with-people-with-spinal-cord-injury
#2
Sandra Carvalho, Jorge Leite, Felipe Jones, Leslie R Morse, Ross Zafonte, Felipe Fregni
STUDY DESIGN: Secondary analysis of a clinical trial. OBJECTIVES: To analyze adherence to 1-year transcranial Direct Current Stimulation (tDCS) clinical trial in people with chronic pain due to spinal cord injury (SCI). We also explore the association between dropout and several baseline variables such as age, depression levels, pain severity, number of days with pain in the last 7 days, walking ability, sleep, work, relationship with others, and enjoyment with life...
December 13, 2017: Spinal Cord
https://www.readbyqxmd.com/read/29213529/therapeutic-effect-of-transcranial-direct-current-stimulation-on-neuropsychological-symptoms-of-an-elderly-patient-a-case-report
#3
Aline Iannone, Joaquim Brasil-Neto, Antonio Pedro Mello Cruz, Corina Satler, Nasser Allam
Although growing evidence points to the potential therapeutic effects of transcranial Direct Current Stimulation (tDCS), there is still no consensus on the most appropriate protocol to be used in specific neurological and neuropsychological symptoms. This case report evaluated the neuromodulatory therapeutic effects of two 15-day courses of tDCS on an elderly female patient, aged 78 years with mild neurocognitive disorder, chronic pain and depression-related symptoms. Results indicated an overall significant improvement of cognitive and executive functions, as well as reduction in both depression and chronic pain symptoms...
July 2017: Dementia & Neuropsychologia
https://www.readbyqxmd.com/read/29190741/preoperative-transcranial-direct-current-stimulation-exploration-of-a-novel-strategy-to-enhance-neuroplasticity-before-surgery-to-control-postoperative-pain-a-randomized-sham-controlled-study
#4
Hugo Ribeiro, Ricardo Bertol Sesterhenn, Andressa de Souza, Ana Claudia de Souza, Monique Alves, Jessica Catarina Machado, Nathalia Bofill Burger, Iraci Lucena da Silva Torres, Luciana Cadore Stefani, Felipe Fregni, Wolnei Caumo
BACKGROUND: An imbalance in the excitatory/inhibitory systems in the pain networks may explain the persistent chronic pain after hallux valgus surgery. Thus, to contra-regulate this dysfunction, the use of transcranial direct current stimulation (tDCS) becomes attractive. OBJECTIVE: We tested the hypothesis that two preoperative active(a)-tDCS sessions compared with sham(s)-tDCS could improve the postoperative pain [as indexed by Visual Analogue Scale (VAS) at rest and during walking (primary outcomes)]...
2017: PloS One
https://www.readbyqxmd.com/read/29180075/cortical-neuromodulation-for-neuropathic-pain-and-parkinson-disease-where-are-we
#5
Angelo Lavano, Giusy Guzzi, Domenico Chirchiglia
Cortex neuromodulation is promising approach for treatment of some neurological conditions, especially neuropathic pain and Parkinson's disease. Effects of non-invasive cortical stimulation are short lived; transcranial direct current stimulation (tDCS) and transcranial alternating current stimulation (tACS) may be useful to assess the suitability for invasive cortical stimulation. Direct cortical stimulation (DCS) is the method able to provide long-lasting effects in treatment of neuropathic pain and some symptoms of Parkinson's disease through the use of totally implantable systems that ensure a chronic stimulation...
November 13, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/29175003/transcranial-direct-current-stimulation-tdcs-prevents-chronic-stress-induced-hyperalgesia-in-rats
#6
F Fregni, I C Macedo, L N Spezia-Adachi, V L Scarabelot, G Laste, A Souza, Paulo Roberto Stefani Sanches, W Caumo, I L S Torres
BACKGROUND: Chronic stress (CS) is associated with a decrease in pain threshold caused by the changes in neural pain circuits. It can be associated to glucocorticoid imbalance with alterations in neural circuitry. Inhibition of stress-induced pain-related neural changes by using techniques that safely induce neuroplasticity such as transcranial direct current stimulation (tDCS) may prevent hyperalgesia triggered by CS. OBJECTIVE: This study aimed to verify the effect of tDCS performed prior to CS exposure on nociceptive response...
November 16, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/29169814/safety-of-repeated-sessions-of-transcranial-direct-current-stimulation-a-systematic-review
#7
Stevan Nikolin, Christina Huggins, Donel Martin, Angelo Alonzo, Colleen K Loo
BACKGROUND: Repeated sessions of transcranial direct current stimulation (tDCS) are increasingly used for therapeutic applications. However, adverse events (AEs) associated with repeated sessions have not been comprehensively evaluated. OBJECTIVE: The aim of this study was therefore to evaluate the safety of repeated sessions of tDCS, examining AE risk relative to tDCS exposure. Further, to identify whether certain participant populations are particularly at risk from tDCS...
October 31, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/29163341/effects-of-transcranial-direct-current-stimulation-transcranial-pulsed-current-stimulation-and-their-combination-on-brain-oscillations-in-patients-with-chronic-visceral-pain-a-pilot-crossover-randomized-controlled-study
#8
Aurore Thibaut, Cristina Russo, Aura Maria Hurtado-Puerto, Jorge Leon Morales-Quezada, Alícia Deitos, John Christopher Petrozza, Steven Freedman, Felipe Fregni
Objective: Chronic visceral pain (CVP) syndromes are persistently painful disorders with a remarkable lack of effective treatment options. This study aimed at evaluating the effects of different neuromodulation techniques in patients with CVP on cortical activity, through electreocephalography (EEG) and on pain perception, through clinical tests. Design: A pilot crossover randomized controlled study. Settings: Out-patient. Subjects: Adults with CVP (>3 months)...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29127483/high-definition-transcranial-direct-current-stimulation-of-the-dorsolateral-prefrontal-cortex-for-tinnitus-modulation-a-preliminary-trial
#9
Giriraj Singh Shekhawat, Sven Vanneste
Tinnitus is the perception of sound in the absence of its external source. Non-invasive neuromodulation techniques have been used in the past decade to investigate the impact of stimulation on tinnitus perception. The objective is to invest the impact of high-definition transcranial direct current stimulation (HD-tDCS) of dorsolateral prefrontal cortex (DLPFC) stimulation on tinnitus loudness and annoyance. Thirteen participants underwent two sessions of HD-tDCS (real and sham) in a double blind, sham controlled, randomized trial...
November 10, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/29079458/bilateral-extracephalic-transcranial-direct-current-stimulation-improves-endurance-performance-in-healthy-individuals
#10
L Angius, A R Mauger, J Hopker, A Pascual-Leone, E Santarnecchi, S M Marcora
BACKGROUND: Transcranial direct current stimulation (tDCS) has been used to enhance endurance performance but its precise mechanisms and effects remain unknown. OBJECTIVE: To investigate the effect of bilateral tDCS on neuromuscular function and performance during a cycling time to task failure (TTF) test. METHODS: Twelve participants in randomized order received a placebo tDCS (SHAM) or real tDCS with two cathodes (CATHODAL) or two anodes (ANODAL) over bilateral motor cortices and the opposite electrode pair over the ipsilateral shoulders...
October 5, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/29066167/the-effects-of-medication-use-in-transcranial-direct-current-stimulation-a-brief-review
#11
REVIEW
Molly E McLaren, Nicole R Nissim, Adam J Woods
BACKGROUND: There has been increased interest in the potential use of transcranial direct current stimulation (tDCS) as treatment for multiple conditions including depression, pain, and cognitive impairment. However, few studies account for the possible influence of comorbid medications when conducting tDCS research. OBJECTIVE/HYPOTHESIS: This literature review was conducted to examine what is currently known about the impact of medications on tDCS, provide recommendations for future research practices, and highlight areas where more research is needed...
October 12, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/29016867/the-response-of-the-primary-motor-cortex-to-neuromodulation-is-altered-in-chronic-low-back-pain-a-preliminary-study
#12
Siobhan M Schabrun, Emma Burns, Tribikram Thapa, Paul Hodges
Objective: Neuromodulation is increasingly investigated for the treatment of low back pain (LBP). However, the neurophysiological effects of common neuromodulatory techniques (anodal transcranial direct current stimulation [tDCS] and peripheral electrical stimulation [PES]) have not been investigated in people with chronic LBP. Here we aimed to compare the effect of three neuromodulatory protocols (anodal tDCS, high intensity PES, and a priming protocol of combined tDCS/PES) on primary motor cortex (M1) excitability in people with and without chronic LBP...
July 17, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28990645/-transcranial-direct-current-stimulation-for-the-treatment-of-fibromyalgia-a-systematic-review
#13
(no author information available yet)
INTRODUCTION: Fibromyalgia is a multisymptomatic diffuse chronic musculoskeletal pain syndrome with evidence of central nervous system dysfunction. Accordingly, non-invasive brain stimulation techniques such as transcranial direct current stimulation (tDCS) may be a complementary therapeutic resource to reduce pain perception. AIMS: To review the potential effectiveness of tDCS to reduce pain in fibromyalgia, to identify the most effective neurostimulation parameters and to delimit its safety...
October 16, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28984619/the-therapeutic-use-of-non-invasive-brain-stimulation-in-multiple-sclerosis-a-review
#14
Rosa Iodice, Fiore Manganelli, Raffaele Dubbioso
BACKGROUND: Multiple sclerosis (MS) is an inflammatory demyelinating disease of the central nervous system and a leading cause of disability in young adults. Many disabling symptoms in MS, such as spasticity, pain, depression and cognitive deficits are not fully controlled by drug treatment. Non-invasive brain stimulation (NIBS) techniques can be used as tools for modulating altered cortical excitability and plasticity MS patients, providing an improvement in disabling symptoms affecting such patients...
2017: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/28917592/prefrontal-versus-motor-cortex-transcranial-direct-current-stimulation-tdcs-effects-on-post-surgical-opioid-use
#15
Jeffrey J Borckardt, Scott T Reeves, Cole Milliken, Brittan Carter, Thomas I Epperson, Ryan J Gunselman, Alok Madan, H Del Schutte, Harry A Demos, Mark S George
BACKGROUND: Pain is often a complaint that precedes total knee arthroplasty (TKA), however the procedure itself is associated with considerable post-operative pain lasting days to weeks which can predict longer-term surgical outcomes. Previously, we reported significant opioid-sparing effects of motor cortex transcranial direct current stimulation from a single-blind trial. In the present study, we used double-blind methodology to compare motor cortex tDCS and prefrontal cortex tDCS to both sham and active-control (active electrodes over non-pain modulating brain areas) tDCS...
November 2017: Brain Stimulation
https://www.readbyqxmd.com/read/28877142/adding-prefrontal-transcranial-direct-current-stimulation-before-occipital-nerve-stimulation-in-fibromyalgia
#16
Hye Bin Yoo, Jan Ost, Wim Joos, Tony Van Havenbergh, Dirk De Ridder, Sven Vanneste
OBJECTIVES: Fibromyalgia is a type of chronic musculoskeletal pain without a clear peripheral origin of nociception, often associated with depression. The underlying pathophysiology involves changes in a functional network that is related to pain and emotional processing in the central nervous system. Transcranial direct current stimulation (tDCS) targeting the dorsolateral prefrontal cortex or the occipital nerve (ON) are non-invasive neuromodulation techniques capable of improving fibromyalgia symptoms...
September 1, 2017: Clinical Journal of Pain
https://www.readbyqxmd.com/read/28874923/noninvasive-brain-stimulation-maladaptive-plasticity-and-bayesian-analysis-in-phantom-limb-pain
#17
REVIEW
Leon Morales-Quezada
Introduction: Phantom limb pain (PLP) is a common and poorly understood pathology of difficult medical control that progressively takes place after amputation occurs. Objective: This article discusses the multifactorial bases of PLP. These bases involve local changes at the stump level, spinal modifications of excitability, deafferentation, and central sensitization, leading to the development of maladaptive plasticity, and consequentially, defective processing of sensory information by associative neural networks...
August 1, 2017: Medical Acupuncture
https://www.readbyqxmd.com/read/28827229/safety-and-feasibility-of-transcranial-direct-current-stimulation-tdcs-combined-with-sensorimotor-retraining-in-chronic-low-back-pain-a-protocol-for-a-pilot-randomised-controlled-trial
#18
Adam Louis Ouellette, Matthew B Liston, Wei-Ju Chang, David M Walton, Benedict Martin Wand, Siobhan M Schabrun
INTRODUCTION: Chronic low back pain (LBP) is a common and costly health problem yet current treatments demonstrate at best, small effects. The concurrent application of treatments with synergistic clinical and mechanistic effects may improve outcomes in chronic LBP. This pilot trial aims to (1) determine the feasibility, safety and perceived patient response to a combined transcranial direct current stimulation (tDCS) and sensorimotor retraining intervention in chronic LBP and (2) provide data to support a sample size calculation for a fully powered trial should trends of effectiveness be present...
August 21, 2017: BMJ Open
https://www.readbyqxmd.com/read/28822837/delayed-pain-decrease-following-m1-tdcs-in-spinal-cord-injury-a-randomized-controlled-clinical-trial
#19
Aurore Thibaut, Sandra Carvalho, Leslie R Morse, Ross Zafonte, Felipe Fregni
Despite some encouraging findings for the treatment of neuropathic pain in patients with spinal cord injury (SCI), transcranial direct current stimulation (tDCS) directed to the primary motor cortex (M1) has faced some mixed results. Prior to translating this technology to clinical care, consistent results and durable effects need to be found. We, therefore, aimed to assess the direct and long-term effects of tDCS on pain following SCI. We performed a two-phase randomized sham-controlled clinical trial where patients received 5days of tDCS followed by a 3-month follow-up period (Phase I); then, Phase II consisted of 10days of tDCS with an 8-week follow-up period...
September 29, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28719422/polarity-independent-effects-of-transcranial-direct-current-stimulation-over-the-bilateral-opercular-somatosensory-region-a-magnetoencephalography-study
#20
Kei Nakagawa, Soichiro Koyama, Koji Inui, Satoshi Tanaka, Ryusuke Kakigi, Norihiro Sadato
The opercular somatosensory region (OP) plays an indispensable role in pain perception. In the present study, we investigated the neurophysiological effects of transcranial direct current stimulation (tDCS) over the OP. Somatosensory-evoked magnetic fields following noxious intraepidermal electrical stimulation to the left index finger (pain-SEFs) were recorded before and after tDCS with a single-blind, sham-controlled, cross-over trial design. Three tDCS conditions of left anodal/right cathodal tDCS, left cathodal/right anodal tDCS (each, 2 mA, 12 min), and sham tDCS (2 mA, 15 s) were applied...
September 6, 2017: Neuroreport
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