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Masoumbeigi M, Riyahi Alam N, Kordi R, Rostami M, Rahimiforoushani A, Jafari AH, Hashemi H, Ebrahimpour A. Altered Amplitude of Low-Frequency Fluctuations of rs-fMRI Signal followed by rTMS Analgesic Effects in Non-Specific Chronic Low Back Pain (CLBP) Patients. J Biomed Phys Eng 2024; 14:435-446. [PMID: 39391282 PMCID: PMC11462276 DOI: 10.31661/jbpe.v0i0.2204-1481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 06/03/2022] [Indexed: 10/12/2024]
Abstract
Background Non-specific chronic low back pain (CLBP) is a common painful condition and is responsible for different physical disorders. Despite alternative therapies, patients still suffer from persistent pain. Repetitive transcranial magnetic stimulation (rTMS) has provided much evidence of pain reduction, but results have not been examined deeply in CLBP symptoms. Objective The analgesic effect of rTMS in non-specific CLBP patients was evaluated by the amplitude of low-frequency fluctuation (ALFF) analysis in resting-state fMRI. Material and Methods In this experimental study, fifteen non-specific CLBP participants (46.87±10.89 years) received 20 Hz rTMS over the motor cortex. The pain intensity and brain functional scan were obtained during pre and post-stimulation for all participants. The ALFF maps of the brain in two scan sessions were identified and the percentage of pain reduction (PPR%) was determined using paired t-test. Also, correlation analysis was used to find a relationship between ALFFs and pain intensity. Results Pain intensity was significantly reduced after induced-rTMS in non-specific CLBP (36.22%±13.28, P<0.05). Positive correlation was found between ALFF in the insula (INS) and pain intensity (rpre-rTMS=0.59, rpost-rTMS=0.58) while ALFF in medial prefrontal cortex (mPFC) and pain intensity had negatively correlated (rpre-rTMS=-0.54, rpost-rTMS=-0.56) (P<0.05). ALFF increased in mPFC while INS, thalamus (THA), and supplementary motor area (SMA) showed decremental ALFF followed by rTMS. Conclusion This study demonstrated that ALFF in INS, THA, mPFC, and SMA is associated with CLBP symptoms and analgesic effects of rTMS. ALFF potentially seems to be a proper objective neuroimaging parameter to link spontaneous brain activity with pain intensity in non-specific CLBP patients.
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Affiliation(s)
- Mahboubeh Masoumbeigi
- Department of Radiology, School of Para-Medicine, Hormozgan University of Medical Sciences (HUMS), Bandar Abbas, Iran
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Nader Riyahi Alam
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences (TUMS), Tehran, Iran
- PERFORM Preventive Medicine and Health Care Centre, Concordia University, Montreal, Quebec, Canada
| | - Ramin Kordi
- Department of Sports Medicine, School of Medicine, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Mohsen Rostami
- Spine Center of Excellence, Yas Hospital, Tehran University of Medical Sciences, Tehran, Iran
- Department of Neurosurgery, Shariati hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Abbas Rahimiforoushani
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Amir Homayoun Jafari
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Hasan Hashemi
- Department of Radiology, School of Medicine, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Anita Ebrahimpour
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences (TUMS), Tehran, Iran
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Hassan OI, Takamiya S, Asgarihafshejani A, Fehlings MG. Bridging the gap: a translational perspective in spinal cord injury. Exp Biol Med (Maywood) 2024; 249:10266. [PMID: 39391076 PMCID: PMC11464315 DOI: 10.3389/ebm.2024.10266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Accepted: 08/27/2024] [Indexed: 10/12/2024] Open
Abstract
Traumatic spinal cord injury (SCI) is a devastating and complex condition to treat with no curative options. In the past few decades, rapid advancements in our understanding of SCI pathophysiology as well as the mergence of new treatments has created more optimism. Focusing on clinical translation, this paper provides a comprehensive overview of SCI through its epidemiology, pathophysiology, currently employed management strategies, and emerging therapeutic approaches. Additionally, it emphasizes the importance of addressing the heavy quality of life (QoL) challenges faced by SCI patients and their desires, providing a basis to tailor patient-centric forms of care. Furthermore, this paper discusses the frequently encountered barriers in translation from preclinical models to clinical settings. It also seeks to summarize significant completed and ongoing SCI clinical trials focused on neuroprotective and neuroregenerative strategies. While developing a cohesive regenerative treatment strategy remains challenging, even modest improvements in sensory and motor function can offer meaningful benefits and motivation for patients coping with this highly debilitating condition.
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Affiliation(s)
- Omar Imad Hassan
- Division of Genetics and Development, Krembil Brain Institute, University Health Network, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Soichiro Takamiya
- Division of Genetics and Development, Krembil Brain Institute, University Health Network, Toronto, ON, Canada
| | - Azam Asgarihafshejani
- Division of Genetics and Development, Krembil Brain Institute, University Health Network, Toronto, ON, Canada
| | - Michael G. Fehlings
- Division of Genetics and Development, Krembil Brain Institute, University Health Network, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
- Division of Neurosurgery, Krembil Neuroscience Centre, Toronto Western Hospital, University Health Network, Toronto, ON, Canada
- Division of Neurosurgery and Spine Program, Department of Surgery, University of Toronto, Toronto, ON, Canada
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Tamasauskas A, Silva-Passadouro B, Fallon N, Frank B, Laurinaviciute S, Keller S, Marshall A. Management of Central Post-Stroke Pain: Systematic Review and Meta-Analysis. THE JOURNAL OF PAIN 2024:104666. [PMID: 39260808 DOI: 10.1016/j.jpain.2024.104666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 08/30/2024] [Accepted: 08/31/2024] [Indexed: 09/13/2024]
Abstract
Central post stroke pain (CPSP) is a neuropathic pain condition prevalent in 8% to 35% of stroke patients. This systematic review and meta-analysis aimed to provide insight in the effectiveness of available pharmacological, physical, psychological, and neuromodulation intervention in reducing pain in CPSP patients (PROSPERO Registration: CRD42022371835). Secondary outcomes included mood, sleep, global impression of change, and physical responses. Data extraction included participant demographics, stroke aetiology, pain characteristics, pain reduction scores, and secondary outcome metrics. Forty two original studies were included with a total of 1451 participants. No studies providing psychological therapy to CPSP patients were identified. Twelve studies met requirements for a random-effects meta-analyses that found: pharmacological therapy to have a small effect on mean pain score (SMD = -0.36, 96.0% Confidence Interval [-0.68, -0.03], physical interventions did not show a significant effect (SMD = -0.55, [-1.28, 0.18]), and neuromodulation treatments had a moderate effect (SMD -0.64, [-1.08, -0.19]). Fourteen studies were included in proportional meta-analysis with pharmacological studies having a moderate effect (58.3% mean pain reduction, [-36.51, -80.15]), and neuromodulation studies a small effect (31.1% mean pain reduction, [-43.45, -18.76]). Sixteen studies were included in the narrative review, findings from which largely supported meta-analyses results. Duloxetine, Amitriptyline and repetitive Transcranial Magnetic Stimulation (rTMS) had the most robust evidence for their effectiveness in alleviating CPSP induced pain. Further multi-centre placebo-controlled research is needed to ascertain the effectiveness of physical therapies, such as acupuncture and virtual reality, and invasive and non-invasive neuromodulation treatments. PERSPECTIVE: This article presents a top-down and bottom-up overview of evidence for the effectiveness of different pharmacological, physical, and neuromodulation treatments of CPSP. This review could provide clinicians with a comprehensive understanding of the effectiveness and tolerability of different treatment types.
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Kataria M, Gupta N, Kumar A, Bhoriwal S, Singh A, Shekhar V, Bhatia R. Assessing the effectiveness of high frequency repetitive transcranial magnetic stimulation for post-mastectomy pain in breast cancer patients: A randomized controlled trial. Breast Cancer 2024; 31:841-850. [PMID: 38796817 DOI: 10.1007/s12282-024-01598-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 05/20/2024] [Indexed: 05/29/2024]
Abstract
BACKGROUND Post-mastectomy pain Syndrome (PMPS), characterized by chronic neuropathic pain stemming from intercostobrachial nerve lesions, presents a formidable clinical challenge. With the incidence of breast cancer surging, effective interventions for PMPS are urgently needed. To address this, we conducted this double-blind, placebo-controlled, randomized clinical trial to study the efficacy of repetitive Transcranial Magnetic Stimulation (rTMS) therapy over the motor cortex on pain, quality of life and thermal sensitivity in PMPS patients. METHODS We delivered 15 rTMS sessions over three weeks in a cohort of 34 PMPS patients. These patients were allocated randomly to either rTMS therapy or sham therapy groups. Pain assessments, utilizing the Visual Analogue Scale (VAS) and Short Form McGill Pain Questionnaire (SF-MPQ), alongside quality-of-life evaluations through the Functional Assessment of Cancer Therapy-Breast (FACT-B), were recorded before and after the 15 sessions. Additionally, we assessed thermal sensitivity using Quantitative Sensory Testing (QST). RESULTS Our findings demonstrate the superior efficacy of rTMS therapy (over sham therapy) in reducing VAS and SF-MPQ scores (p < 0.0001), improving physical (p = 0.037), emotional (p = 0.033), and functional well-being (p = 0.020) components of quality of life, as quantified by FACT-B. Our investigation also unveiled marked enhancements in thermal sensitivity within the rTMS therapy group, with statistically significant improvements in cold detection threshold (p = 0.0001), warm detection threshold (p = 0.0033), cold pain threshold (p = 0.0078), and hot pain tolerance threshold (p = 0.0078). CONCLUSION The study underscores the profound positive impact of rTMS therapy on pain, quality of life, and thermal sensitivity in patients having PMPS, opening new avenues for pain management strategies.
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Affiliation(s)
- Monika Kataria
- Department of Physiology, All India Institute of Medical Sciences (AIIMS), New Delhi, 110029, India
| | - Nishkarsh Gupta
- Department of Onco-Anesthesiology and Palliative Medicine, All India Institute of Medical Sciences (AIIMS), New Delhi, 110029, India
| | - Aasheesh Kumar
- Department of Physiology, All India Institute of Medical Sciences (AIIMS), New Delhi, 110029, India
| | - Sandeep Bhoriwal
- Department of Surgical Oncology, All India Institute of Medical Sciences (AIIMS), New Delhi, 110029, India
| | - Akanksha Singh
- Department of Physiology, All India Institute of Medical Sciences (AIIMS), New Delhi, 110029, India
| | - Varun Shekhar
- Department of Onco-Anesthesiology and Palliative Medicine, All India Institute of Medical Sciences (AIIMS), New Delhi, 110029, India
| | - Renu Bhatia
- Department of Physiology, All India Institute of Medical Sciences (AIIMS), New Delhi, 110029, India.
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Zhou J, Wang Y, Luo X, Fitzgerald PB, Cash RFH, Fitzgibbon BM, Che X. Revisiting the effects of rTMS over the dorsolateral prefrontal cortex on pain: An updated systematic review and meta-analysis. Brain Stimul 2024; 17:928-937. [PMID: 39089648 DOI: 10.1016/j.brs.2024.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 07/15/2024] [Accepted: 07/22/2024] [Indexed: 08/04/2024] Open
Abstract
BACKGROUND Our previous study synthesized the analgesic effects of repetitive Transcranial Magnetic Stimulation (rTMS) over the dorsolateral prefrontal cortex (DLPFC) trials up to 2019. There has been a significant increase in pain trials in the past few years, along with methodological variabilities such as sample size, stimulation intensity, and rTMS paradigms. OBJECTIVES/METHODS This study therefore updated the effects of DLPFC-rTMS on chronic pain and quantified the impact of methodological differences across studies. RESULTS A total of 36 studies were included. Among them, 26 studies were clinical trials (update = 9, 307/711 patients), and 10 (update = 1, 34/249 participants) were provoked pain studies. The updated meta-analysis does not support an effect on neuropathic pain after including the additional trials (pshort-term = 0.20, pmid-term = 0.50). However, there is medium-to-large analgesic effect in migraine trials extending up to six weeks follow-up (SMDmid-term = -0.80, SMDlong-term = -0.51), that was not previously reported. Methodological differences wthine the studies were considered. DLPFC-rTMS also induces potential improvement in the emotional aspects of pain (SMDshort-term = -0.28). CONCLUSIONS The updated systematic meta-analysis continues to support analgesic effects for chronic pain overall. However, the updated results no longer support DLPFC-rTMS for pain relief in neuropathic pain, and do supports DLPFC-rTMS in the management of migraine. There is also evidence for DLPFC-rTMS to improve emotional aspects of pain.
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Affiliation(s)
- Jie Zhou
- Centre for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Ying Wang
- Centre for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Xi Luo
- School of Nursing, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Paul B Fitzgerald
- School of Medicine and Psychology, The Australian National University, Australian Capital Territory, Australia; Monarch Research Institute, Monarch Mental Health Group, Australia
| | - Robin F H Cash
- Melbourne Neuropsychiatry Centre, The University of Melbourne, Victoria, Australia
| | - Bernadette M Fitzgibbon
- School of Medicine and Psychology, The Australian National University, Australian Capital Territory, Australia; Monarch Research Institute, Monarch Mental Health Group, Australia
| | - Xianwei Che
- Centre for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China.
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Dai Q, Xu A, Wang K, Yang Y, Shao Y, Sun Y. The efficacy of repetitive transcranial magnetic stimulation in postherpetic neuralgia: a meta-analysis of randomized controlled trials. Front Neurol 2024; 15:1365445. [PMID: 38919968 PMCID: PMC11196813 DOI: 10.3389/fneur.2024.1365445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Accepted: 05/30/2024] [Indexed: 06/27/2024] Open
Abstract
Purpose This systematic review and meta-analysis aimed to evaluate the efficacy of repetitive transcranial magnetic stimulation (rTMS) in postherpetic neuralgia (PHN). Methods Through an extensive search in four databases until October 2023, we selected five randomized controlled trials adhering to our specific criteria, involving 257 patients in total. For continuous outcomes, the standardized mean difference (SMD) was calculated. Heterogeneity among the studies was assessed using Cochran's I 2 and Q statistics, adopting a random-effects model for I 2 values over 50%. For assessing potential publication bias, we utilized both funnel plot and Egger's test. Results Our analysis found that rTMS reduced the overall visual analogue scale (VAS) (SMD: -1.52, 95% CI: -2.81 to -0.23, p = 0.02), VAS at 1 month post-treatment (SMD: -2.21, 95% CI: -4.31 to -0.10, p = 0.04), VAS at 3 months post-treatment (SMD: -1.51, 95% CI: -2.81 to -0.22, p = 0.02), as well as patients' global impression of change scale (PGIC) (SMD: -1.48, 95% CI: -2.87 to -0.09, p = 0.04) and short-form McGill pain questionnaire (SF-MPQ) (SMD: -1.25, 95% CI: -2.41 to -0.09, p = 0.03) compared to the sham-rTMS group. Conclusion Our study suggests that rTMS might have a potential alleviating effect on PHN symptoms. However, due to the limited number of studies and variations in rTMS parameters, larger sample studies involving more diverse populations, as well as further clarification of the most appropriate stimulation protocol, are still needed. Systematic review registration https://www.crd.york.ac.uk/prospero/, Identifier ID: CRD42023488420.
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Affiliation(s)
- Qi Dai
- Department of Rehabilitation Medicine, The First Hospital of China Medical University, Shenyang, China
| | - Aihua Xu
- Department of Rehabilitation Medicine, The First Hospital of China Medical University, Shenyang, China
| | - Kunpeng Wang
- Department of Pain Medicine, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Yang Yang
- Department of Rehabilitation Medicine, The First Hospital of China Medical University, Shenyang, China
| | - Yang Shao
- Department of Rehabilitation Medicine, The First Hospital of China Medical University, Shenyang, China
| | - Yongxin Sun
- Department of Rehabilitation Medicine, The First Hospital of China Medical University, Shenyang, China
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González-Zamorano Y, José Sánchez-Cuesta F, Moreno-Verdú M, Arroyo-Ferrer A, Fernández-Carnero J, Chaudhuri KR, Fieldwalker A, Romero JP. TDCS for parkinson's disease disease-related pain: A randomized trial. Clin Neurophysiol 2024; 161:133-146. [PMID: 38479239 DOI: 10.1016/j.clinph.2024.01.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 12/05/2023] [Accepted: 01/04/2024] [Indexed: 04/28/2024]
Abstract
OBJECTIVE To evaluate the effects of transcranial direct current stimulation (tDCS) on Parkinson's disease (PD)-related pain. METHODS This triple-blind randomized controlled trial included twenty-two patients (age range 38-85, 10 male) with PD-related pain. Eleven subjects received ten sessions of 20 minutes tDCS over the primary motor cortex contralateral to pain at 2 mA intensity. Eleven subjects received sham stimulation. Outcome measures included changes in the Kinǵs Parkinsońs Pain Scale (KPPS), Brief Pain Inventory (BPI), widespread mechanical hyperalgesia (WMH), temporal summation of pain (TS), and conditioned pain modulation (CPM). RESULTS Significant differences were found in KPPS between groups favoring the active-tDCS group compared to the sham-tDCS group at 15-days follow-up (p = 0.014) but not at 2 days post-intervention (p = 0.059). The active-group showed significant improvements over the sham-group after 15 days (p = 0.017). Significant changes were found in CPM between groups in favor of active-tDCS group at 2 days post-intervention (p = 0.002) and at 15 days (p = 0.017). No meaningful differences were observed in BPI or TS. CONCLUSIONS tDCS of the primary motor cortex alleviates perceived PD-related pain, reduces pain sensitization, and enhances descending pain inhibition. SIGNIFICANCE This is the first study to test and demonstrate the use of tDCS for improving PD-related pain.
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Affiliation(s)
- Yeray González-Zamorano
- International Doctorate School, Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Universidad Rey Juan Carlos, 28933 Alcorcón, Spain; Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Rey Juan Carlos University, 28933 Alcorcón, Spain; Cognitive Neuroscience, Pain and Rehabilitation Research Group (NECODOR), Faculty of Health Sciences, Rey Juan Carlos University, Madrid, Spain; Brain Injury and Movement Disorders Neurorehabilitation Group (GINDAT), Institute of Life Sciences, Francisco de Vitoria University, Pozuelo de Alarcón, Spain.
| | - Francisco José Sánchez-Cuesta
- Brain Injury and Movement Disorders Neurorehabilitation Group (GINDAT), Institute of Life Sciences, Francisco de Vitoria University, Pozuelo de Alarcón, Spain; Faculty of Experimental Sciences, Francisco de Vitoria University, 28223 Pozuelo de Alarcón, Spain.
| | - Marcos Moreno-Verdú
- Brain Injury and Movement Disorders Neurorehabilitation Group (GINDAT), Institute of Life Sciences, Francisco de Vitoria University, Pozuelo de Alarcón, Spain; Faculty of Experimental Sciences, Francisco de Vitoria University, 28223 Pozuelo de Alarcón, Spain
| | - Aida Arroyo-Ferrer
- Brain Injury and Movement Disorders Neurorehabilitation Group (GINDAT), Institute of Life Sciences, Francisco de Vitoria University, Pozuelo de Alarcón, Spain; Faculty of Experimental Sciences, Francisco de Vitoria University, 28223 Pozuelo de Alarcón, Spain.
| | - Josué Fernández-Carnero
- Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Rey Juan Carlos University, 28933 Alcorcón, Spain; Cognitive Neuroscience, Pain and Rehabilitation Research Group (NECODOR), Faculty of Health Sciences, Rey Juan Carlos University, Madrid, Spain.
| | - K Ray Chaudhuri
- Department of Basic and Clinical Neurosciences, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom; Parkinson's Foundation Centre of Excellence, King's College Hospital, London, United Kingdom.
| | - Anna Fieldwalker
- Department of Basic and Clinical Neurosciences, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom.
| | - Juan Pablo Romero
- Cognitive Neuroscience, Pain and Rehabilitation Research Group (NECODOR), Faculty of Health Sciences, Rey Juan Carlos University, Madrid, Spain; Brain Injury and Movement Disorders Neurorehabilitation Group (GINDAT), Institute of Life Sciences, Francisco de Vitoria University, Pozuelo de Alarcón, Spain; Faculty of Experimental Sciences, Francisco de Vitoria University, 28223 Pozuelo de Alarcón, Spain; Brain Damage Unit, Beata María Ana Hospital, 28007 Madrid, Spain.
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Herrero Babiloni A, Provost C, Charlebois-Plante C, De Koninck BP, Apinis-Deshaies A, Lavigne GJ, Martel MO, De Beaumont L. One session of repetitive transcranial magnetic stimulation induces mild and transient analgesic effects among female individuals with painful temporomandibular disorders. J Oral Rehabil 2024; 51:827-839. [PMID: 38225806 DOI: 10.1111/joor.13655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 11/11/2023] [Accepted: 01/05/2024] [Indexed: 01/17/2024]
Abstract
OBJECTIVE Temporomandibular disorders (TMD) are characterised by chronic pain and dysfunction in the jaw joint and masticatory muscles. Repetitive transcranial magnetic stimulation (rTMS) has emerged as a potential non-invasive treatment for chronic pain; however, its effectiveness in individuals with TMD has not been thoroughly investigated. This study aimed to evaluate the immediate and sustained (over seven consecutive days) effects of a single session of active rTMS compared to sham stimulation on pain intensity and pain unpleasantness in individuals with TMD. METHODS A randomised, double-blind, sham-controlled trial enrolled 41 female participants with chronic TMD. Pain intensity and pain unpleasantness were assessed immediately pre- and post-intervention, as well as twice daily for 21 days using electronic diaries. Secondary outcomes included pain interference, sleep quality, positive and negative affect and pain catastrophizing. Adverse effects were monitored. Repeated measures ANOVA and multilevel modelling regression analyses were employed for data analysis. RESULT Active rTMS demonstrated a significant immediate mild reduction in pain intensity and pain unpleasantness compared to sham stimulation. However, these effects were not sustained over the 7-day post-intervention period. No significant differences were observed between interventions for pain interference, sleep quality and negative affect. A minority of participants reported minor and transient side effects, including headaches and fatigue. CONCLUSION A single session of active rTMS was safe and led to immediate mild analgesic effects in individuals with TMD compared to sham stimulation. However, no significant differences were observed between interventions over the 7-day post-intervention period. Based on this study, rTMS stimulation appears to be a promising safe approach to be tested in TMD patients with longer stimulation protocols.
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Affiliation(s)
- Alberto Herrero Babiloni
- Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada
- Sacre-Coeur Hospital, University of Montreal, Montreal, Quebec, Canada
| | - Catherine Provost
- Sacre-Coeur Hospital, University of Montreal, Montreal, Quebec, Canada
| | - Camille Charlebois-Plante
- Sacre-Coeur Hospital, University of Montreal, Montreal, Quebec, Canada
- Department of Psychology, University of Montreal, Montreal, Quebec, Canada
| | - Beatrice P De Koninck
- Sacre-Coeur Hospital, University of Montreal, Montreal, Quebec, Canada
- Department of Psychology, University of Montreal, Montreal, Quebec, Canada
| | - Amelie Apinis-Deshaies
- Sacre-Coeur Hospital, University of Montreal, Montreal, Quebec, Canada
- Department of Psychology, University of Montreal, Montreal, Quebec, Canada
| | - Gilles J Lavigne
- Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada
- Sacre-Coeur Hospital, University of Montreal, Montreal, Quebec, Canada
- Faculty of Dental Medicine, University of Montreal, Montreal, Quebec, Canada
| | - Marc O Martel
- Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada
- Faculty of Dentistry, McGill University, Montreal, Quebec, Canada
- Department of Anesthesia, McGill University, Montreal, Quebec, Canada
| | - Louis De Beaumont
- Sacre-Coeur Hospital, University of Montreal, Montreal, Quebec, Canada
- Department of Psychology, University of Montreal, Montreal, Quebec, Canada
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Is EE, Aksu S, Karamursel S, Ketenci A, Sindel D. Effectiveness of transcranial direct current stimulation in chronic pain and neurogenic claudication related to lumbar spinal stenosis. Neurol Sci 2024; 45:769-782. [PMID: 38091212 DOI: 10.1007/s10072-023-07248-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 12/01/2023] [Indexed: 01/18/2024]
Abstract
OBJECTIVES Transcranial direct current stimulation (tDCS) is a promising non-invasive brain stimulation technique for treating chronic pain, yet its effectiveness in chronic lower extremity pain due to lumbar spinal stenosis (LSS) has not been studied. This research aimed to investigate the impact of tDCS on pain, walking capacity, functional status, and quality of life in LSS patients. PATIENTS AND METHODS In this prospective, randomized, double-blind, sham-controlled study, 32 LSS patients received either real or sham tDCS over the motor cortex contralateral to the patient's painful lower extremity for 10 consecutive weekdays (10 sessions). Evaluations were conducted at baseline, post-session, and 1-3 months later. The pain was evaluated by Visual Analog Scale (VAS), walking duration and distance by Treadmill Walking Test, functional status by Modified Oswestry Disability Questionnaire (MODQ) and quality of life by Short Form-36 (SF-36). RESULTS In-group comparisons, active tDCS showed sustained analgesic effects for 3-month post-treatment, distinct from sham. After the final session, active group exhibited significantly better asymptomatic walking distance and duration. Active stimulation led to notably lower MOLBDQ scores after 1 month. Significant improvements in SF-36 subscales were seen after 3 months, especially in pain, physical functioning, and general health. Positive tDCS effects on pain, claudication, and some quality of life aspects were evident at 3 months, while functional status improvements were mainly limited to 1 month. CONCLUSION tDCS shows potential as a safe, non-invasive technique for alleviating chronic LSS-related pain, enhancing mobility, functionality, and quality of life. TRIAL REGISTRATION Clinicaltrials.gov ID: NCT03958526.
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Affiliation(s)
- Enes Efe Is
- Department of Physical Medicine and Rehabilitation, University of Health Sciences Turkiye, Sisli Hamidiye Etfal Teaching and Research Hospital, Seyrantepe Campus, Cumhuriyet Ve Demokrasi Avenue, Sariyer, Istanbul, 34485, Turkey.
- Department of Physical Medicine and Rehabilitation, Istanbul University Istanbul Faculty of Medicine, Istanbul, Turkey.
| | - Serkan Aksu
- Department of Physiology, Mugla Sitki Kocman University Faculty of Medicine, Mugla, Turkey
- Department of Physiology, Istanbul University Istanbul Faculty of Medicine, Istanbul, Turkey
| | - Sacit Karamursel
- Department of Physiology, Koc University School of Medicine, Istanbul, Turkey
| | - Aysegul Ketenci
- Department of Physical Medicine and Rehabilitation, Koc University School of Medicine, Istanbul, Turkey
| | - Dilsad Sindel
- Department of Physical Medicine and Rehabilitation, Istanbul University Istanbul Faculty of Medicine, Istanbul, Turkey
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Pérez-Borrego YA, Soto-León V, Brocalero-Camacho Á, Oliviero A, Carrasco-López C. A Retrospective Study on tDCS Treatment in Patients with Drug-Resistant Chronic Pain. Biomedicines 2024; 12:115. [PMID: 38255220 PMCID: PMC10813345 DOI: 10.3390/biomedicines12010115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 12/31/2023] [Accepted: 01/03/2024] [Indexed: 01/24/2024] Open
Abstract
Background. Transcranial direct current stimulation (tDCS) of the primary motor cortex (M1) has an analgesic effect superior to a placebo in chronic pain. Some years ago, tDCS was implemented at the Hospital Nacional of Paraplegics (Toledo, Spain) to treat patients with pharmacological resistance to chronic pain. Objective. The main objectives of this study with tDCS were (1) to confirm the safety of one-year treatment; (2) to estimate the number of patients after one year in treatment; (3) to describe the effects of tDCS on the pain intensity during one-year treatment; and (4) to identify factors related to treatment success. Methods. This was a retrospective study conducted at the National Hospital for Paraplegics with 155 patients with pharmacologically resistant chronic pain. Anodal tDCS was applied over the M1 for 20 min at 1.5 mA for 10 treatment sessions from Monday to Friday (Induction phase), followed by 2-3 sessions per month (Maintenance phase). Pain intensity was assessed using a Visual Analogue Scale (VAS). Results. Anodal tDCS on M1 confirmed the reduction in the pain intensity. Moreover, 58% of outpatients completed one year of treatment. Only the VAS values obtained during the baseline influenced the response to treatment. Patients with a very high VAS at the baseline were more likely to not respond adequately to tDCS treatment. Conclusions. Anodal tDCS over M1 is an adequate therapy (safe and efficient) to treat drug-resistant chronic pain. Moreover, pain intensity at the start of treatment could be a predictor of patients' continuity with tDCS for at least one year.
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Affiliation(s)
- Yolanda A. Pérez-Borrego
- FENNSI Group, Hospital Nacional de Parapléjicos, SESCAM, 45071 Toledo, Spain; (V.S.-L.); (Á.B.-C.); (A.O.)
| | - Vanesa Soto-León
- FENNSI Group, Hospital Nacional de Parapléjicos, SESCAM, 45071 Toledo, Spain; (V.S.-L.); (Á.B.-C.); (A.O.)
| | - Ángela Brocalero-Camacho
- FENNSI Group, Hospital Nacional de Parapléjicos, SESCAM, 45071 Toledo, Spain; (V.S.-L.); (Á.B.-C.); (A.O.)
- Unidad de Neurología, Hospital de Parapléjicos, SESCAM, 45071 Toledo, Spain
| | - Antonio Oliviero
- FENNSI Group, Hospital Nacional de Parapléjicos, SESCAM, 45071 Toledo, Spain; (V.S.-L.); (Á.B.-C.); (A.O.)
- Unidad de Neurología, Hospital de Parapléjicos, SESCAM, 45071 Toledo, Spain
- Hospital Los Madroños, 28690 Brunete, Spain
| | - Carmen Carrasco-López
- Internet of Things and People, University of Malmö, 211 19 Malmö, Sweden
- Department of Anatomy, University of Seville, 41009 Seville, Spain
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Hu YT, Hu XW, Han JF, Zhang JF, Wang YY, Wolff A, Tremblay S, Hirjak D, Tan ZL, Northoff G. Motor cortex repetitive transcranial magnetic stimulation in major depressive disorder - A preliminary randomized controlled clinical trial. J Affect Disord 2024; 344:169-175. [PMID: 37827254 DOI: 10.1016/j.jad.2023.10.058] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/27/2023] [Accepted: 10/09/2023] [Indexed: 10/14/2023]
Abstract
BACKGROUND Repetitive transcranial magnetic stimulation (rTMS) at left dorsolateral prefrontal cortex (lDLPFC) is commonly used in major depressive disorder (MDD), even though its therapeutic efficacy is limited. Given that many MDD patients show psychomotor retardation, we aim to examine whether the left motor cortex (lMC) as a novel rTMS target would provide effective and well-tolerated treatment as being comparable to lDLPFC-rTMS. METHODS In this prospective double-blind randomized single-center study, 131 MDD patients were randomly assigned to the lDLPFC or lMC group and were treated with 10 Hz rTMS (90 % motor threshold) applied twice daily for 4000 pulses continuously over five days. The primary endpoint was the Hamilton Depression Scale (HAMD) total score change after treatment. RESULTS After the five-day rTMS treatment, there was no significant difference in both HAMD reduction rate (lDLPFC 59.3 % ± 20.4 %, lMC 51.3 % ± 26.3 %, P = 0.10) and adverse effects (P = 0.79) between 48 (73.8 %) lMC subjects and 51 (77.3 %) lDLPFC subjects. Furthermore, the lMC study group showed stable HAMD scores at follow-up compared to their endpoint scores (P = 0.08). LIMITATIONS Sham-control group was not included and the sample size was small. Therefore, our results should be seen as exploratory and preliminary. CONCLUSIONS The preliminary good therapeutic response, comparability, and tolerability of lMC-rTMS suggest lMC a potential and more easily accessible rTMS target. Together, our findings raise the possibility of symptom-specific rTMS in motor cortex (psychomotor retardation) or lDLPFC (cognitive deficits). This warrants larger clinical trials of rTMS in MDD with symptom-specific stimulation targets.
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Affiliation(s)
- Yu-Ting Hu
- Affiliated Mental Health Center and Hangzhou Seventh People's Hospital, Zhejiang University School of Medicine, Hangzhou, China; Institute of Mental Health Research, University of Ottawa, Ottawa, Canada
| | - Xi-Wen Hu
- Affiliated Mental Health Center and Hangzhou Seventh People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jin-Fang Han
- Affiliated Mental Health Center and Hangzhou Seventh People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jian-Feng Zhang
- Center for Brain Disorders and Cognitive Sciences, Shenzhen University, Shenzhen, China
| | - Ying-Ying Wang
- Institute of Psychological Sciences, College of Education, Hangzhou Normal University, Hangzhou, China
| | - Annemarie Wolff
- Institute of Mental Health Research, University of Ottawa, Ottawa, Canada
| | - Sara Tremblay
- Institute of Mental Health Research, University of Ottawa, Ottawa, Canada
| | - Dusan Hirjak
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Zhong-Lin Tan
- Affiliated Mental Health Center and Hangzhou Seventh People's Hospital, Zhejiang University School of Medicine, Hangzhou, China.
| | - Georg Northoff
- Affiliated Mental Health Center and Hangzhou Seventh People's Hospital, Zhejiang University School of Medicine, Hangzhou, China; Institute of Mental Health Research, University of Ottawa, Ottawa, Canada.
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12
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Cosentino G, Antoniazzi E, Cavigioli C, Tang V, Tammam G, Zaffina C, Tassorelli C, Todisco M. Repetitive Transcranial Magnetic Stimulation of the Human Motor Cortex Modulates Processing of Heat Pain Sensation as Assessed by the Offset Analgesia Paradigm. J Clin Med 2023; 12:7066. [PMID: 38002678 PMCID: PMC10672427 DOI: 10.3390/jcm12227066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/26/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
Offset analgesia (OA), which is defined as a disproportionately large reduction in pain perception following a small decrease in a heat stimulus, quantifies temporal aspects of endogenous pain modulation. In this study on healthy subjects, we aimed to (i) determine the Heat Pain Threshold (HPT) and the response to constant and dynamic heat stimuli assessing sensitization, adaptation and OA phenomena at the thenar eminence; (ii) evaluate the effects of high-frequency repetitive Transcranial Magnetic Stimulation (rTMS) of the primary motor cortex (M1) on these measures. Twenty-four healthy subjects underwent quantitative sensory testing before and after active or sham 10 Hz rTMS (1200 stimuli) of the left M1, during separate sessions. We did not observe any rTMS-related changes in the HPT or visual analogue scale (VAS) values recorded during the constant trial. Of note, at baseline, we did not find OA at the thenar eminence. Only after active rTMS did we detect significantly reduced VAS values during dynamic heat stimuli, indicating a delayed and attenuated OA phenomenon. rTMS of the left M1 may activate remote brain areas that belong to the descending pain modulatory and reward systems involved in the OA phenomenon. Our findings provide insights into the mechanisms by which rTMS of M1 could exert its analgesic effects.
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Affiliation(s)
- Giuseppe Cosentino
- Department of Brain and Behavioral Sciences, University of Pavia, 27100 Pavia, Italy
- Translational Neurophysiology Research Unit, IRCCS Mondino Foundation, 27100 Pavia, Italy
| | - Elisa Antoniazzi
- Translational Neurophysiology Research Unit, IRCCS Mondino Foundation, 27100 Pavia, Italy
| | - Camilla Cavigioli
- Department of Brain and Behavioral Sciences, University of Pavia, 27100 Pavia, Italy
- Translational Neurophysiology Research Unit, IRCCS Mondino Foundation, 27100 Pavia, Italy
| | - Vanessa Tang
- Department of Brain and Behavioral Sciences, University of Pavia, 27100 Pavia, Italy
| | - Giulia Tammam
- Department of Brain and Behavioral Sciences, University of Pavia, 27100 Pavia, Italy
| | - Chiara Zaffina
- Department of Brain and Behavioral Sciences, University of Pavia, 27100 Pavia, Italy
| | - Cristina Tassorelli
- Department of Brain and Behavioral Sciences, University of Pavia, 27100 Pavia, Italy
- Headache Science and Neurorehabilitation Center, IRCCS Mondino Foundation, 27100 Pavia, Italy
| | - Massimiliano Todisco
- Translational Neurophysiology Research Unit, IRCCS Mondino Foundation, 27100 Pavia, Italy
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Motzkin JC, Kanungo I, D’Esposito M, Shirvalkar P. Network targets for therapeutic brain stimulation: towards personalized therapy for pain. FRONTIERS IN PAIN RESEARCH 2023; 4:1156108. [PMID: 37363755 PMCID: PMC10286871 DOI: 10.3389/fpain.2023.1156108] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 05/19/2023] [Indexed: 06/28/2023] Open
Abstract
Precision neuromodulation of central brain circuits is a promising emerging therapeutic modality for a variety of neuropsychiatric disorders. Reliably identifying in whom, where, and in what context to provide brain stimulation for optimal pain relief are fundamental challenges limiting the widespread implementation of central neuromodulation treatments for chronic pain. Current approaches to brain stimulation target empirically derived regions of interest to the disorder or targets with strong connections to these regions. However, complex, multidimensional experiences like chronic pain are more closely linked to patterns of coordinated activity across distributed large-scale functional networks. Recent advances in precision network neuroscience indicate that these networks are highly variable in their neuroanatomical organization across individuals. Here we review accumulating evidence that variable central representations of pain will likely pose a major barrier to implementation of population-derived analgesic brain stimulation targets. We propose network-level estimates as a more valid, robust, and reliable way to stratify personalized candidate regions. Finally, we review key background, methods, and implications for developing network topology-informed brain stimulation targets for chronic pain.
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Affiliation(s)
- Julian C. Motzkin
- Departments of Neurology and Anesthesia and Perioperative Care (Pain Management), University of California, San Francisco, San Francisco, CA, United States
| | - Ishan Kanungo
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, United States
| | - Mark D’Esposito
- Department of Psychology, University of California, Berkeley, Berkeley, CA, United States
| | - Prasad Shirvalkar
- Departments of Neurology and Anesthesia and Perioperative Care (Pain Management), University of California, San Francisco, San Francisco, CA, United States
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, CA, United States
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14
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Wang H, Hu Y, Deng J, Ye Y, Huang M, Che X, Yu L. A randomised sham-controlled study evaluating rTMS analgesic efficacy for postherpetic neuralgia. Front Neurosci 2023; 17:1158737. [PMID: 37250417 PMCID: PMC10213647 DOI: 10.3389/fnins.2023.1158737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 04/18/2023] [Indexed: 05/31/2023] Open
Abstract
Context Postherpetic neuralgia (PHN) is a refractory neuropathic pain condition in which new treatment options are being developed. Repetitive transcranial magnetic stimulation (rTMS) may have the potential to reduce pain sensations in patients with postherpetic neuralgia. Objectives This study investigated the efficacy on postherpetic neuralgia by stimulating two potential targets, the motor cortex (M1) and the dorsolateral prefrontal cortex (DLPFC). Methods This is a double-blind, randomised, sham-controlled study. Potential participants were recruited from Hangzhou First People's Hospital. Patients were randomly assigned to either the M1, DLPFC or Sham group. Patients received ten daily sessions of 10-Hz rTMS in 2 consecutive weeks. The primary outcome measure was visual analogue scale (VAS) assessed at baseline, first week of treatment (week 1), post-treatment (week 2), 1-week (week 4), 1-month (week 6) and 3-month (week 14) follow-up. Results Of sixty patients enrolled, 51 received treatment and completed all outcome assessments. M1 stimulation resulted in a larger analgesia during and after treatment compared to the Sham (week 2 - week 14, p < 0.005), as well as to the DLPFC stimulation (week 1 - week 14, p < 0.05). In addition to pain, sleep disturbance was significantly improved and relieved by targeting either the M1 or the DLPFC (M1: week 4 - week 14, p < 0.01; DLPFC: week 4 - week 14, p < 0.01). Moreover, pain sensations following M1 stimulation uniquely predicted improvement in sleep quality. Conclusion M1 rTMS is superior to DLPFC stimulation in treating PHN with excellent pain response and long-term analgesia. Meanwhile, M1 and DLPFC stimulation were equally effective in improving sleep quality in PHN. Clinical trial registration https://www.chictr.org.cn/, identifier ChiCTR2100051963.
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Affiliation(s)
- Huan Wang
- Zhejiang Chinese Medicine University, Hangzhou, China
- Department of Anesthesiology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yuzhong Hu
- Zhejiang Chinese Medicine University, Hangzhou, China
| | - Jiayi Deng
- Zhejiang Chinese Medicine University, Hangzhou, China
| | - Yang Ye
- Centre for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Manli Huang
- Department of Mental Health, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- The Key Laboratory of Mental Disorder Management of Zhejiang Province, Hangzhou, China
| | - Xianwei Che
- Centre for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
- TMS Center, Deqing Hospital of Hangzhou Normal University, Deqing, China
| | - Liang Yu
- Zhejiang Chinese Medicine University, Hangzhou, China
- Department of Pain, The Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
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15
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Wang H, Hu YZ, Che XW, Yu L. Motor cortex transcranial magnetic stimulation to reduce intractable postherpetic neuralgia with poor response to other threapies: Report of two cases. World J Clin Cases 2023; 11:2015-2020. [PMID: 36998964 PMCID: PMC10044954 DOI: 10.12998/wjcc.v11.i9.2015] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/05/2023] [Accepted: 02/21/2023] [Indexed: 03/16/2023] Open
Abstract
BACKGROUND Postherpetic neuralgia (PHN) is a typical neuropathic pain condition that appears in the lesioned skin regions following the healing of shingles. The pain condition tends to persist, which is often accompanied by negative emotions (e.g., anxiety and depression) and substantially reduces the quality of life. In addition to analgesia (e.g., pregabalin and gabapentin), nerve radiofrequency technology is an effective treatment for intractable PHN. However, there is still a significant portion of patients who do not benefit from this treatment. As a non-invasive form of brain stimulation, repetitive transcranial magnetic stimulation (rTMS) targeting the motor cortex is able to reduce neuropathic pain with grade A evidence.
CASE SUMMARY Here we report two cases in which motor cortex rTMS was used to treat intractable PHN that did not respond to initial drug and radiofrequency therapies. Moreover, we specifically investigated rTMS efficacy at 3 mo following treatment.
CONCLUSION Motor cortex rTMS can treat intractable PHN that did not respond to initial drug and radiofrequency therapies.
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Affiliation(s)
- Huan Wang
- Department of Anesthesiology, Zhejiang Chinese Medicine University, Hangzhou 310000, Zhejiang Province, China
| | - Yu-Zhong Hu
- Department of Anesthesiology, Zhejiang Chinese Medicine University, Hangzhou 310000, Zhejiang Province, China
| | - Xian-Wei Che
- Transcranial Magnetic Stimulation Centre, Deqing Hospital of Hangzhou Normal University, Hangzhou 310000, Zhejiang Province, China
| | - Liang Yu
- Department of Anesthesiology, Zhejiang Chinese Medicine University, Hangzhou 310000, Zhejiang Province, China
- Department of Pain, Hangzhou First People's Hospital, Hangzhou 310000, Zhejiang Province, China
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16
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Cheng M, Che X, Ye Y, He C, Yu L, Lv Y, Fitzgerald PB, Cash RFH, Fitzgibbon BM. Analgesic efficacy of theta-burst stimulation for postoperative pain. Clin Neurophysiol 2023; 149:81-87. [PMID: 36933324 DOI: 10.1016/j.clinph.2023.02.174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 02/14/2023] [Accepted: 02/20/2023] [Indexed: 03/18/2023]
Abstract
OBJECTIVE Repetitive transcranial magnetic stimulation (rTMS) may be a relevant method to assist postoperative pain. However, studies to date have only used conventional 10 Hz rTMS and targeted the DLPFC for postoperative pain. A more recent form of rTMS, termed intermittent Theta Burst Stimulation (iTBS), enables to increase cortical excitability in a short period of time. This preliminary double-blind, randomised, sham controlled study was designed to evaluate the efficacy of iTBS in postoperative care across two distinct stimulation targets. METHODS A group of 45 patients post laparoscopic surgery were randomised to receive a single session of iTBS over either the dorsolateral prefrontal cortex (DLPFC), primary motor cortex (M1), or Sham stimulation (1:1:1 ratio). Outcome measurements were number of pump attempts, total anaesthetic volume used, and self-rated pain experience, assessed at 1 hour, 6 hours, 24 hours, and 48 hours post stimulation. All randomised patients were analysed (n = 15 in each group). RESULTS Compared to Sham stimulation, DLPFC-iTBS reduced pump attempts at 6 (DLPFC = 0.73 ± 0.88, Sham = 2.36 ± 1.65, P = 0.031), 24 (DLPFC = 1.40 ± 1.24, Sham = 5.03 ± 3.87, P = 0.008), and 48 (DLPFC = 1.47 ± 1.41, Sham = 5.87 ± 4.34, P = 0.014) hours post-surgery, whereby M1 stimulation had no effect. No group effect was observed on total anaesthetics, which was mainly provided through the continuous administration of opioids at a set speed for each group. There was also no group or interaction effect on pain ratings. Pump attempts were positively associated with pain ratings in the DLPFC (r = 0.59, P = 0.02) and M1 (r = 0.56, P = 0.03) stimulation. CONCLUSIONS Our findings show that iTBS to the DLPFC reduces pump attempts for additional anaesthetics following a laparoscopic surgery. However, reduced pump attempts by DLPFC stimulation did not translate into a significantly smaller volume of total anaesthetic, due to the continuous administration of opioids at a set speed for each group. SIGNIFICANCE Our findings therefore provide preliminary evidence for iTBS targeting the DLPFC to be used to improve postoperative pain management.
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Affiliation(s)
- Ming Cheng
- Anaesthesiologic Department, the Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Xianwei Che
- Centre for Cognition and Brain Disorders, the Affiliated Hospital of Hangzhou Normal University, Hangzhou, China; Institutes of Psychological Sciences, Hangzhou Normal University, Hangzhou, China.
| | - Yang Ye
- Centre for Cognition and Brain Disorders, the Affiliated Hospital of Hangzhou Normal University, Hangzhou, China; Institutes of Psychological Sciences, Hangzhou Normal University, Hangzhou, China
| | - Changlin He
- Anaesthesiologic Department, the Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Liang Yu
- Department of Pain, the Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yating Lv
- Centre for Cognition and Brain Disorders, the Affiliated Hospital of Hangzhou Normal University, Hangzhou, China; Institutes of Psychological Sciences, Hangzhou Normal University, Hangzhou, China
| | - Paul B Fitzgerald
- School of Medicine and Psychology, The Australian National University, Australian Capital Territory, Australia
| | - Robin F H Cash
- Melbourne Neuropsychiatry Centre, The University of Melbourne, Victoria, Australia; Department of Biomedical Engineering, The University of Melbourne, Victoria, Australia
| | - Bernadette M Fitzgibbon
- School of Medicine and Psychology, The Australian National University, Australian Capital Territory, Australia; Monarch Research Institute, Monarch Mental Health Group, Australia; Faculty of Medicine, Nursing, and Health Sciences, Monash University, Melbourne, Australia
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Application of Repetitive Transcranial Magnetic Stimulation in Neuropathic Pain: A Narrative Review. Life (Basel) 2023; 13:life13020258. [PMID: 36836613 PMCID: PMC9962564 DOI: 10.3390/life13020258] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/08/2023] [Accepted: 01/12/2023] [Indexed: 01/18/2023] Open
Abstract
Neuropathic pain, affecting 6.9-10% of the general population, has a negative impact on patients' quality of life and potentially leads to functional impairment and disability. Repetitive transcranial magnetic stimulation (rTMS)-a safe, indirect and non-invasive technique-has been increasingly applied for treating neuropathic pain. The mechanism underlying rTMS is not yet well understood, and the analgesic effects of rTMS have been inconsistent with respect to different settings/parameters, causing insufficient evidence to determine its efficacy in patients with neuropathic pain. This narrative review aimed to provide an up-to-date overview of rTMS for treating neuropathic pain as well as to summarize the treatment protocols and related adverse effects from existing clinical trials. Current evidence supports the use of 10 Hz HF-rTMS of the primary motor cortex to reduce neuropathic pain, especially in patients with spinal cord injury, diabetic neuropathy and post-herpetic neuralgia. However, the lack of standardized protocols impedes the universal use of rTMS for neuropathic pain. rTMS was hypothesized to achieve analgesic effects by upregulating the pain threshold, inhibiting pain impulse, modulating the brain cortex, altering imbalanced functional connectivity, regulating neurotrophin and increasing endogenous opioid and anti-inflammatory cytokines. Further studies are warranted to explore the differences in the parameters/settings of rTMS for treating neuropathic pain due to different disease types.
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Freigang S, Fresnoza S, Lehner C, Jasinskaitė D, Ali KM, Zaar K, Mokry M. Twenty-Three Months Repetitive Transcranial Magnetic Stimulation of the Primary Motor Cortex for Refractory Trigeminal Neuralgia: A Single-Case Study. LIFE (BASEL, SWITZERLAND) 2023; 13:life13010126. [PMID: 36676075 PMCID: PMC9866023 DOI: 10.3390/life13010126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/13/2022] [Accepted: 12/27/2022] [Indexed: 01/04/2023]
Abstract
Treatment refractory or recurrent trigeminal neuralgia (TN) is a severe chronic pain illness. Single-session repetitive transcranial magnetic stimulation (rTMS) has been shown to elicit analgesic effects in several craniofacial pain syndromes, including TN. However, the safety and long-term effect of multi-session rTMS for TN have yet to be fully explored. In this study, we present a case of a patient with medical treatment-refractory TN after microvascular decompression. The patient volunteered to undergo 73 sessions of 10 Hz rTMS over 23 months. Neurovagination was used for precise localization and stimulation of the hand and face representation at the left motor cortex. The numeric pain intensity scores derived using the visual analog scale served as a daily index of treatment efficacy. The patient experienced a significant weekly reduction in pain scores, cumulating in 70.89% overall pain relief. The medication dosages were reduced and then discontinued toward the end of the intervention period. No severe adverse events were reported. From our results, we can conclude that the longitudinal multi-session application of rTMS over the hand and face area of M1 is a safe and effective method for producing long-lasting pain relief in TN. Using rTMS may thus prove helpful as an adjunct to conventional methods for treating pain in TN.
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Affiliation(s)
- Sascha Freigang
- Department of Neurosurgery, Medical University Graz, 8036 Graz, Austria
- Correspondence:
| | - Shane Fresnoza
- Institute of Psychology, University of Graz, 8010 Graz, Austria
- BioTechMed, 8010 Graz, Austria
| | - Christian Lehner
- Department of Neurosurgery, Medical University Graz, 8036 Graz, Austria
| | - Dominyka Jasinskaitė
- Faculty of Medicine, Lithuanian University of Health Sciences Kaunas, 44307 Kaunas, Lithuania
| | - Kariem Mahdy Ali
- Department of Neurosurgery, Medical University Graz, 8036 Graz, Austria
| | - Karla Zaar
- Department of Neurosurgery, Medical University Graz, 8036 Graz, Austria
| | - Michael Mokry
- Department of Neurosurgery, Medical University Graz, 8036 Graz, Austria
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Bao Y, Xie Q, Sun XP, Shi JJ, Zhang J, Pan HJ, Li DY, Liang Y. Safety and effectiveness of electromyography-induced rehabilitation treatment after epidural electrical stimulation for spinal cord injury: study protocol for a prospective, randomized, controlled trial. Neural Regen Res 2023; 18:819-824. [DOI: 10.4103/1673-5374.353507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Shao Y, Yang Y, Sun YX, Xu AH. Different frequencies of repetitive transcranial magnetic stimulation combined with local injection of botulinum toxin type A for post-stroke lower limb spasticity: study protocol for a prospective, single-center, non-randomized, controlled clinical trial. Neural Regen Res 2022; 17:2491-2496. [PMID: 35535901 PMCID: PMC9120707 DOI: 10.4103/1673-5374.339011] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
No definite consensus has currently been reached regarding the safety and efficacy of low- or high-frequency repetitive transcranial magnetic stimulation in the treatment of post-stroke muscle spasticity. The latest research indicates that when combined with local injections of botulinum toxin type A, it is more effective on post-stroke muscle spasticity than local injections of botulinum toxin type A alone. We designed a prospective, single-center, non-randomized, controlled clinical trial to investigate the safety and efficacy of different frequencies of repetitive transcranial magnetic stimulation combined with local injections of botulinum toxin type A in treating post-stroke lower limb muscle spasticity to determine an optimal therapeutic regimen. This trial will enroll 150 patients with post-stroke muscle spasticity admitted to the Department of Rehabilitation Medicine at the First Affiliated Hospital of China Medical University. All enrolled patients will undergo routine rehabilitation training and will be divided into five groups (n = 30 per group) according to the particular area of cerebral infarction and treatment methods. Group A: Patients with massive cerebral infarction will be given local injections of botulinum toxin type A and low-frequency (1 Hz) repetitive transcranial magnetic stimulation on the contralateral side; Group B: Patients with non-massive cerebral infarction will be given local injections of botulinum toxin type A and high-frequency (10–20 Hz) repetitive transcranial magnetic stimulation on the affected side; Group C: Patients with massive/non-massive cerebral infarction will be given local injections of botulinum toxin type A; Group D: Patients with massive cerebral infarction will be given low-frequency (1 Hz) repetitive transcranial magnetic stimulation on the contralateral side; and Group E: Patients with non-massive cerebral infarction will be given high-frequency (10–20 Hz) repetitive transcranial magnetic stimulation on the affected side. The primary outcome measure of this trial is a modified Ashworth scale score from 1 day before treatment to 12 months after treatment. Secondary outcome measures include Fugl-Meyer Assessment of Lower Extremity, Visual Analogue Scale, modified Barthel index, and Berg Balance Scale scores for the same time as specified for primary outcome measures. The safety indicator is the incidence of adverse events at 3–12 months after treatment. We hope to draw a definite conclusion on whether there are differences in the safety and efficacy of low- or high-frequency repetitive transcranial magnetic stimulation combined with botulinum toxin type A injections in the treatment of patients with post-stroke lower limb spasticity under strict grouping and standardized operation, thereby screening out the optimal therapeutic regimen. The study protocol was approved by the Medical Ethics Committee of the First Affiliated Hospital of China Medical University (approval No. [2021] 2021-333-3) on August 19, 2021. The trial was registered with the Chinese Clinical Trial Registry (Registration No. ChiCTR2100052180) on October 21, 2021. The protocol version is 1.1.
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Affiliation(s)
- Yang Shao
- Department of Rehabilitation Medicine, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Yang Yang
- Department of Rehabilitation Medicine, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Yong-Xin Sun
- Department of Rehabilitation Medicine, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Ai-Hua Xu
- Department of Rehabilitation Medicine, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
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21
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Lee Y, Oh BM, Park SH, Han TR. Low-Frequency Repetitive Transcranial Magnetic Stimulation in the Early Subacute Phase of Stroke Enhances Angiogenic Mechanisms in Rats. Ann Rehabil Med 2022; 46:228-236. [DOI: 10.5535/arm.22040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 07/19/2022] [Indexed: 11/07/2022] Open
Abstract
Objective To characterize the repetitive transcranial magnetic stimulation (rTMS) induced changes in angiogenic mechanisms across different brain regions.Methods Seventy-nine adult male Sprague-Dawley rats were subjected to a middle cerebral artery occlusion (day 0) and then treated with 1-Hz, 20-Hz, or sham stimulation of their lesioned hemispheres for 2 weeks. The stimulation intensity was set to 100% of the motor threshold. The neurological function was assessed on days 3, 10, and 17. The infarct volume and angiogenesis were measured by histology, immunohistochemistry, Western blot, and real-time polymerase chain reaction (PCR) assays. Brain tissue was harvested from the ischemic core (IC), ischemic border zone (BZ), and contralateral homologous cortex (CH).Results Optical density of angiopoietin1 and synaptophysin in the IC was significantly greater in the low-frequency group than in the sham group (p=0.03 and p=0.03, respectively). The 1-Hz rTMS significantly increased the level of Akt phosphorylation in the BZ (p<0.05 vs. 20 Hz). Endothelial nitric oxide synthase phosphorylation was increased in the IC (p<0.05 vs. 20 Hz), BZ (p<0.05 vs. 20 Hz), and CH (p<0.05 vs. 20 Hz and p<0.05 vs. sham). Real-time PCR demonstrated that low-frequency stimulation significantly increased the transcriptional activity of the TIE2 gene in the IC (p<0.05).Conclusion Low-frequency rTMS of the ipsilesional hemisphere in the early subacute phase of stroke promotes the expression of angiogenic factors and related genes in the brain, particularly in the injured area.
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22
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Sanganahalli BG, Pavuluri S, Chitturi J, Herman P, Elkabes S, Heary R, Hyder F, Kannurpatti SS. Lateralized Supraspinal Functional Connectivity Correlate with Pain and Motor Dysfunction in Rat Hemicontusion Cervical Spinal Cord Injury. Neurotrauma Rep 2022; 3:421-432. [PMID: 36337081 PMCID: PMC9622206 DOI: 10.1089/neur.2022.0040] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Afferent nociceptive activity in the reorganizing spinal cord after SCI influences supraspinal regions to establish pain. Clinical evidence of poor motor functional recovery in SCI patients with pain, led us to hypothesize that sensory-motor integration transforms into sensory-motor interference to manifest pain. This was tested by investigating supraspinal changes in a rat model of hemicontusion cervical SCI. Animals displayed ipsilateral forelimb motor dysfunction and pain, which persisted at 6 weeks after SCI. Using resting state fMRI at 8 weeks after SCI, RSFC across 14 ROIs involved in nociception, indicated lateral differences with a relatively weaker right-right connectivity (deafferented-contralateral) compared to left-left (unaffected-ipsilateral). However, the sensory (S1) and motor (M1/M2) networks showed greater RSFC using right hemisphere ROI seeds when compared to left. Voxel seeds from the somatosensory forelimb (S1FL) and M1/M2 representations reproduced the SCI-induced sensory and motor RSFC enhancements observed using the ROI seeds. Larger local connectivity occurred in the right sensory and motor networks amidst a decreasing overall local connectivity. This maladaptive reorganization of the right (deafferented) hemisphere localized the sensory component of pain emerging from the ipsilateral forepaw. A significant expansion of the sensory and motor network s overlap occurred globally after SCI when compared to sham, supporting the hypothesis that sensory and motor interference manifests pain. Voxel-seed based analysis revealed greater sensory and motor network overlap in the left hemisphere when compared to the right. This left predominance of the overlap suggested relatively larger pain processing in the unaffected hemisphere, when compared to the deafferented side.
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Affiliation(s)
- Basavaraju G. Sanganahalli
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Swathi Pavuluri
- Department of Radiology, Rutgers Biomedical and Health Sciences–New Jersey Medical School, Newark, New Jersey, USA
| | - Jyothsna Chitturi
- Department of Radiology, Rutgers Biomedical and Health Sciences–New Jersey Medical School, Newark, New Jersey, USA
| | - Peter Herman
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Stella Elkabes
- Department of Neurosurgery, Rutgers Biomedical and Health Sciences–New Jersey Medical School, Newark, New Jersey, USA
| | - Robert Heary
- Hackensack Meridian School of Medicine, Mountainside Medical Center, Montclair, New Jersey, USA
| | - Fahmeed Hyder
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Sridhar S. Kannurpatti
- Department of Radiology, Rutgers Biomedical and Health Sciences–New Jersey Medical School, Newark, New Jersey, USA.,Address correspondence to: Sridhar S. Kannurpatti, PhD, Department of Radiology, RUTGERS–New Jersey Medical School, MSB, F-506, 185 South Orange Avenue, Newark, NJ 07103, USA.
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23
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Hwang W, Choi JK, Bang MS, Park WY, Oh BM. Gene Expression Profile Changes in the Stimulated Rat Brain Cortex After Repetitive Transcranial Magnetic Stimulation. BRAIN & NEUROREHABILITATION 2022; 15:e27. [PMID: 36742089 PMCID: PMC9833481 DOI: 10.12786/bn.2022.15.e27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 06/30/2022] [Accepted: 08/22/2022] [Indexed: 12/02/2022] Open
Abstract
Repetitive transcranial magnetic stimulation (rTMS) is gaining popularity as a research tool in neuroscience; however, little is known about its molecular mechanisms of action. The present study aimed to investigate the rTMS-induced transcriptomic changes; we performed microarray messenger RNA, micro RNA, and integrated analyses to explore these molecular events. Eight adult male Sprague-Dawley rats were subjected to a single session of unilateral rTMS at 1 Hz (n = 4) or sham (n = 4). The left hemisphere was stimulated for 20 minutes. To evaluate the cumulative effect of rTMS, eight additional rats were assigned to the 1-Hz (n = 4) or sham (n = 4) rTMS groups. The left hemisphere was stimulated for 5 consecutive days using the same protocol. Microarray analysis revealed differentially expressed genes in the rat cortex after rTMS treatment. The overrepresented gene ontology categories included the positive regulation of axon extension, axonogenesis, intracellular transport, and synaptic plasticity after repeated sessions of rTMS. A single session of rTMS primarily induced changes in the early genes, and several miRNAs were significantly related to the mRNAs. Future studies are required to validate the functional significance of selected genes and refine the therapeutic use of rTMS.
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Affiliation(s)
- Wonjae Hwang
- Department of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul, Korea.,Department of Rehabilitation Medicine, Seoul National University Hospital, Seoul, Korea
| | - Joong Kyung Choi
- Department of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Moon Suk Bang
- Department of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul, Korea.,Department of Rehabilitation Medicine, Seoul National University Hospital, Seoul, Korea.,National Traffic Injury Rehabilitation Hospital, Yangpyeong, Korea
| | - Woong-Yang Park
- Samsung Genome Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Byung-Mo Oh
- Department of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul, Korea.,Department of Rehabilitation Medicine, Seoul National University Hospital, Seoul, Korea.,National Traffic Injury Rehabilitation Hospital, Yangpyeong, Korea.,Institute on Aging, Seoul National University, Seoul, Korea
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24
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Masoumbeigi M, Alam NR, Kordi R, Rostami M, Afzali M, Yadollahi M, Rahimiforoushani A, Jafari AH, Hashemi H, Kavousi M. rTMS Pain Reduction Effectiveness in Non-specific Chronic Low Back Pain Patients using rs-fMRI Functional Connectivity. J Med Biol Eng 2022. [DOI: 10.1007/s40846-022-00721-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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25
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Yang QH, Zhang YH, Du SH, Wang YC, Fang Y, Wang XQ. Non-invasive Brain Stimulation for Central Neuropathic Pain. Front Mol Neurosci 2022; 15:879909. [PMID: 35663263 PMCID: PMC9162797 DOI: 10.3389/fnmol.2022.879909] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 05/04/2022] [Indexed: 12/15/2022] Open
Abstract
The research and clinical application of the noninvasive brain stimulation (NIBS) technique in the treatment of neuropathic pain (NP) are increasing. In this review article, we outline the effectiveness and limitations of the NIBS approach in treating common central neuropathic pain (CNP). This article summarizes the research progress of NIBS in the treatment of different CNPs and describes the effects and mechanisms of these methods on different CNPs. Repetitive transcranial magnetic stimulation (rTMS) analgesic research has been relatively mature and applied to a variety of CNP treatments. But the optimal stimulation targets, stimulation intensity, and stimulation time of transcranial direct current stimulation (tDCS) for each type of CNP are still difficult to identify. The analgesic mechanism of rTMS is similar to that of tDCS, both of which change cortical excitability and synaptic plasticity, regulate the release of related neurotransmitters and affect the structural and functional connections of brain regions associated with pain processing and regulation. Some deficiencies are found in current NIBS relevant studies, such as small sample size, difficulty to avoid placebo effect, and insufficient research on analgesia mechanism. Future research should gradually carry out large-scale, multicenter studies to test the stability and reliability of the analgesic effects of NIBS.
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Affiliation(s)
- Qi-Hao Yang
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
| | - Yong-Hui Zhang
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
| | - Shu-Hao Du
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
| | - Yu-Chen Wang
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
| | - Yu Fang
- School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai, China
- *Correspondence: Yu Fang,
| | - Xue-Qiang Wang
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
- Department of Rehabilitation Medicine, Shanghai Shangti Orthopaedic Hospital, Shanghai, China
- Xue-Qiang Wang,
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26
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Saleh C, Ilia TS, Jaszczuk P, Hund-Georgiadis M, Walter A. Is transcranial magnetic stimulation as treatment for neuropathic pain in patients with spinal cord injury efficient? A systematic review. Neurol Sci 2022; 43:3007-3018. [PMID: 35239053 DOI: 10.1007/s10072-022-05978-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 02/12/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND PURPOSE Neuropathic pain is a clinically relevant complication in individuals with spinal cord injury (SCI). Pharmacological pain treatment is often insufficient and leads to undesirable side effects. Thus, alternative therapeutic approaches such as repetitive transcranial magnetic stimulation (rTMS) are of critical importance. We aimed to evaluate the effectiveness of rTMS in neuropathic pain secondary to SCI. METHODS We conducted a systematic review using the PubMed/MEDLINE, EMBASE, and PsycInfo (via OVID) database up April 2021. Only randomized controlled trials were included. Results regarding the pain intensity scores were pooled using a random-effects model. RESULTS The search identified a total of 203 potential articles. Of these, eight randomized controlled trials (RCTs) met the eligibility criteria for qualitative synthesis providing the total data of 141 patients. All studies applied high-frequency rTMS. In seven studies, rTMS was applied over the motor cortex, and in one study over the left dorsolateral prefrontal cortex. Five studies reported a significant improvement in baseline pain scores after treatment, and three studies found a significant difference between sham vs. non-sham stimulation at any time. Six RCTs were included in the quantitative synthesis and showed a significant overall reduction of pain intensity in the rTMS groups compared with the sham groups (mean difference - 0.81, 95%CI - 1.45 to - 0.17). CONCLUSIONS Our findings indicate that high-frequency rTMS of the primary motor cortex and left dorsolateral prefrontal cortex might be promising stimulation targets for neuropathic pain in SCI.
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Affiliation(s)
- Christian Saleh
- Clinic for Neurorehabilitation and Paraplegiology, REHAB Basel, Im Burgfelderhof 40, CH-4055, Basel, Switzerland
| | - Tatiani Soultana Ilia
- Clinic for Neurorehabilitation and Paraplegiology, REHAB Basel, Im Burgfelderhof 40, CH-4055, Basel, Switzerland
| | - Phillip Jaszczuk
- Clinic for Neurorehabilitation and Paraplegiology, REHAB Basel, Im Burgfelderhof 40, CH-4055, Basel, Switzerland
| | - Margret Hund-Georgiadis
- Clinic for Neurorehabilitation and Paraplegiology, REHAB Basel, Im Burgfelderhof 40, CH-4055, Basel, Switzerland
| | - Anna Walter
- Clinic for Neurorehabilitation and Paraplegiology, REHAB Basel, Im Burgfelderhof 40, CH-4055, Basel, Switzerland.
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27
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Kim H, Jung J, Park S, Joo Y, Lee S, Lee S. Effects of Repetitive Transcranial Magnetic Stimulation on the Primary Motor Cortex of Individuals with Fibromyalgia: A Systematic Review and Meta-Analysis. Brain Sci 2022; 12:570. [PMID: 35624957 PMCID: PMC9139594 DOI: 10.3390/brainsci12050570] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 04/17/2022] [Accepted: 04/26/2022] [Indexed: 02/01/2023] Open
Abstract
The purpose of this study was to quantify the effect of repetitive transcranial magnetic stimulation (rTMS), which is recommended for the improvement of some pain-related symptoms and for antidepressant treatment, on the primary motor cortex (M1) in patients with fibromyalgia (FM). We searched for studies comparing rTMS and sham rTMS in the M1 of FM patients. Pain intensity, quality of life, health status, and depression were compared with or without rTMS for at least 10 sessions. We searched four databases. Quality assessment and quantitative analysis were performed using RevMan 5.4. After screening, five randomized controlled trials of 170 patients with FM were included in the analysis. As a result of the meta-analysis of rTMS on the M1 of individuals with FM, high-frequency rTMS resulted in a significant improvement on quality of life (MD = -2.50; 95% CI: -3.99 to -1.01) compared with sham rTMS. On the other hand, low-frequency rTMS resulted in a significant improvement on health status (MD = 15.02; 95% CI: 5.59 to 24.45). The application of rTMS to the M1 is proposed as an adjunctive measure in the treatment of individuals with FM. Because rTMS has various effects depending on each application site, it is necessary to classify sites or set frequencies as variables.
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Affiliation(s)
- Hyunjoong Kim
- Department of Physical Therapy, Graduate School, Sahmyook University, 815, Hwarang-ro, Seoul 01795, Korea; (H.K.); (S.P.); (Y.J.); (S.L.)
| | - Jihye Jung
- Institute of SMART Rehabilitation, Sahmyook University, 815, Hwarang-ro, Seoul 01795, Korea;
| | - Sungeon Park
- Department of Physical Therapy, Graduate School, Sahmyook University, 815, Hwarang-ro, Seoul 01795, Korea; (H.K.); (S.P.); (Y.J.); (S.L.)
| | - Younglan Joo
- Department of Physical Therapy, Graduate School, Sahmyook University, 815, Hwarang-ro, Seoul 01795, Korea; (H.K.); (S.P.); (Y.J.); (S.L.)
| | - Sangbong Lee
- Department of Physical Therapy, Graduate School, Sahmyook University, 815, Hwarang-ro, Seoul 01795, Korea; (H.K.); (S.P.); (Y.J.); (S.L.)
| | - Seungwon Lee
- Department of Physical Therapy, Sahmyook University, 815, Hwarang-ro, Seoul 01795, Korea
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Xu H, Seminowicz DA, Krimmel SR, Zhang M, Gao L, Wang Y. Altered Structural and Functional Connectivity of Salience Network in Patients with Classic Trigeminal Neuralgia. THE JOURNAL OF PAIN 2022; 23:1389-1399. [PMID: 35381362 DOI: 10.1016/j.jpain.2022.02.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 02/28/2022] [Accepted: 02/28/2022] [Indexed: 12/27/2022]
Abstract
Classic trigeminal neuralgia (CTN) is a neuropathic pain disorder displaying spontaneously stabbing or electric shock-like paroxysms in the face. Previous research suggests structural and functional abnormalities in brain regions related to sensory and cognitive-affective dimensions of pain contribute to the pathophysiology of CTN. However, few studies to date have investigated how changes in whole-brain functional networks and white matter connectivity are related to CTN. We performed an independent component analysis to examine abnormalities in resting state functional connectivity of large-scale networks in 48 patients with CTN compared to 46 matched healthy participants. Then, diffusion tensor tractography was performed to test whether these alterations of functional connectivity in intrinsic networks were associated with impairment of the white matter tracts connecting them. Distinct patterns of functional connectivity were detected within default mode network, somatosensory network, and salience network (SN) in the CTN group when compared with healthy controls. Furthermore, abnormality of SN was negatively correlated with pain severity. In support of aberrant functional connectivity within SN, structural disintegration was observed in the white matter tract from left anterior insula (aIns) to left anterior cingulate cortex (ACC) in CTN. These results suggest that altered structural and functional connectivity between aIns and ACC may underpin the aberrant SN in patients with CTN and provide an alternative target for clinical interventions. PERSPECTIVE: This article presents distinctive abnormalities of functional and structural connectivity from aIns to ACC in the patients with CTN, which is associated with pain ratings. This measure could potentially provide an alternative target for clinicians to alleviate this type of intermittent and refractory pain.
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Affiliation(s)
- Hui Xu
- Department of Medical Imaging, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - David A Seminowicz
- Department of Neural and Pain Sciences, School of Dentistry, University of Maryland Baltimore, Baltimore, Maryland; Center to Advance Chronic Pain Research, University of Maryland Baltimore, Baltimore, Maryland
| | - Samuel R Krimmel
- Department of Neurology, Washington University School of Medicine, St. Louis, Missouri
| | - Ming Zhang
- Department of Medical Imaging, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Lin Gao
- Department of Mechanical Engineering, Xian Jiaotong University, Xi'an, Shaanxi, China
| | - Yuan Wang
- Department of Medical Imaging, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.
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Zang Y, Zhang Y, Lai X, Yang Y, Guo J, Gu S, Zhu Y. Evidence Mapping Based on Systematic Reviews of Repetitive Transcranial Magnetic Stimulation on the Motor Cortex for Neuropathic Pain. Front Hum Neurosci 2022; 15:743846. [PMID: 35250506 PMCID: PMC8889530 DOI: 10.3389/fnhum.2021.743846] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 11/15/2021] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND AND OBJECTIVE There is vast published literature proposing repetitive transcranial magnetic stimulation (rTMS) technology on the motor cortex (M1) for the treatment of neuropathic pain (NP). Systematic reviews (SRs) focus on a specific problem and do not provide a comprehensive overview of a research area. This study aimed to summarize and analyze the evidence of rTMS on the M1 for NP treatment through a new synthesis method called evidence mapping. METHODS Searches were conducted in PubMed, EMBASE, Epistemonikos, and The Cochrane Library to identify the studies that summarized the effectiveness of rTMS for NP. The study type was restricted to SRs with or without meta-analysis. All literature published before January 23, 2021, was included. Two reviewers independently screened the literature, assessed the methodological quality, and extracted the data. The methodological quality of the included SRs was assessed by using the A Measurement Tool to Assess Systematic Reviews (AMSTAR-2). Data were extracted following a defined population, intervention, comparison, and outcome (PICO) framework from primary studies that included SRs. The same PICO was categorized into PICOs according to interventions [frequency, number of sessions (short: 1-5 sessions, medium: 5-10 sessions, and long: >10 sessions)] and compared. The evidence map was presented in tables and a bubble plot. RESULTS A total of 38 SRs met the eligibility criteria. After duplicate primary studies were removed, these reviews included 70 primary studies that met the scope of evidence mapping. According to the AMSTAR-2 assessment, the quality of the included SRs was critically low. Of these studies, 34 SRs scored "critically low" in terms of methodological quality, 2 SR scored "low," 1 SR scored "moderate," and 1 SR scored "high." CONCLUSION Evidence mapping is a useful methodology to provide a comprehensive and reliable overview of studies on rTMS for NP. Evidence mapping also shows that further investigations are necessary to highlight the optimal stimulation protocols and standardize all parameters to fill the evidence gaps of rTMS. Given that the methodological quality of most included SRs was "critically low," further investigations are advised to improve the methodological quality and the reporting process of SRs.
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Affiliation(s)
- Yaning Zang
- Department of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Yongni Zhang
- School of Health Sciences, Duquesne University, Pittsburgh, PA, United States
| | - Xigui Lai
- Department of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Yujie Yang
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Sciences Limited, Hong Kong, Hong Kong SAR, China
| | - Jiabao Guo
- Department of Rehabilitation Medicine, The Second School of Clinical Medicine, Xuzhou Medical University, Xuzhou, China
| | - Shanshan Gu
- Department of Physical Therapy, University of Toronto, Toronto, ON, Canada
| | - Yi Zhu
- Department of Musculoskeletal Pain Rehabilitation, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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DaSilva AF, Datta A, Swami J, Kim DJ, Patil PG, Bikson M. The Concept, Development, and Application of a Home-Based High-Definition tDCS for Bilateral Motor Cortex Modulation in Migraine and Pain. FRONTIERS IN PAIN RESEARCH 2022; 3:798056. [PMID: 35295794 PMCID: PMC8915734 DOI: 10.3389/fpain.2022.798056] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 01/13/2022] [Indexed: 11/16/2022] Open
Abstract
Whereas, many debilitating chronic pain disorders are dominantly bilateral (e.g., fibromyalgia, chronic migraine), non-invasive and invasive cortical neuromodulation therapies predominantly apply unilateral stimulation. The development of excitatory stimulation targeting bilateral primary motor (M1) cortices could potentially expand its therapeutic effect to more global pain relief. However, this is hampered by increased procedural and technical complexity. For example, repetitive transcranial magnetic stimulation (rTMS) and 4 × 1/2 × 2 high-definition transcranial direct current stimulation (4 × 1/2 × 2 HD-tDCS) are largely center-based, with unilateral-target focus-bilateral excitation would require two rTMS/4 × 1 HD-tDCS systems. We developed a system that allows for focal, non-invasive, self-applied, and simultaneous bilateral excitatory M1 stimulation, supporting long-term home-based treatment with a well-tolerated wearable battery-powered device. Here, we overviewed the most employed M1 neuromodulation methods, from invasive techniques to non-invasive TMS and tDCS. The evaluation extended from non-invasive diffuse asymmetric bilateral (M1-supraorbital [SO] tDCS), non-invasive and invasive unilateral focal (4 × 1/2 × 2 HD-tDCS, rTMS, MCS), to non-invasive and invasive bilateral bipolar (M1-M1 tDCS, MCS), before outlining our proposal for a neuromodulatory system with unique features. Computational models were applied to compare brain current flow for current laboratory-based unilateral M11 and bilateral M12 HD-tDCS models with a functional home-based M11-2 HD-tDCS prototype. We concluded the study by discussing the promising concept of bilateral excitatory M1 stimulation for more global pain relief, which is also non-invasive, focal, and home-based.
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Affiliation(s)
- Alexandre F. DaSilva
- Headache and Orofacial Pain Effort Lab, Department of Biologic and Materials Sciences and Prosthodontics, University of Michigan School of Dentistry, Ann Arbor, MI, United States
| | | | - Jaiti Swami
- Neural Engineering Laboratory, Department of Biomedical Engineering, The City College of New York, New York, NY, United States
| | - Dajung J. Kim
- Headache and Orofacial Pain Effort Lab, Department of Biologic and Materials Sciences and Prosthodontics, University of Michigan School of Dentistry, Ann Arbor, MI, United States
| | - Parag G. Patil
- Department of Neurosurgery, University of Michigan, Ann Arbor, MI, United States
- Department of Neurology, University of Michigan, Ann Arbor, MI, United States
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, United States
- Department of Anesthesiology, University of Michigan, Ann Arbor, MI, United States
| | - Marom Bikson
- Neural Engineering Laboratory, Department of Biomedical Engineering, The City College of New York, New York, NY, United States
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Bonifácio de Assis ED, Martins WKN, de Carvalho CD, Ferreira CM, Gomes R, de Almeida Rodrigues ET, Meira UM, de Holanda LJ, Lindquist AR, Morya E, Mendes CKTT, de Assis TCG, de Oliveira EA, Andrade SM. Effects of rTMS and tDCS on neuropathic pain after brachial plexus injury: a randomized placebo-controlled pilot study. Sci Rep 2022; 12:1440. [PMID: 35087138 PMCID: PMC8795394 DOI: 10.1038/s41598-022-05254-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 12/21/2021] [Indexed: 12/11/2022] Open
Abstract
Neuropathic pain after brachial plexus injury (NPBPI) is a highly disabling clinical condition and is increasingly prevalent due to increased motorcycle accidents. Currently, no randomized controlled trials have evaluated the effectiveness of non-invasive brain stimulation techniques such as repetitive transcranial magnetic stimulation (rTMS) and transcranial direct-current stimulation (tDCS) in patients suffering from NPBPI. In this study, we directly compare the efficacy of 10-Hz rTMS and anodal 2 mA tDCS techniques applied over the motor cortex (5 daily consecutive sessions) in 20 patients with NPBPI, allocated into 2 parallel groups (active or sham). The order of the sessions was randomised for each of these treatment groups according to a crossover design and separated by a 30-day interval. Scores for "continuous" and "paroxysmal" pain (primary outcome) were tabulated after the last stimulation day and 30 days after. Secondary outcomes included the improvement in multidimensional aspects of pain, anxiety state and quality of life from a qualitative and quantitative approach. Active rTMS and tDCS were both superior to sham in reducing continuous (p < 0.001) and paroxysmal (p = 0.002; p = 0.02) pain as well as in multidimensional aspects of pain (p = 0.001; p = 0.002) and anxiety state (p = < 0.001; p = 0.005). Our results suggest rTMS and tDCS are able to treat NPBPI with little distinction in pain and anxiety state, which may promote the use of tDCS in brachial plexus injury pain management, as it constitutes an easier and more available technique.Clinical Trial Registration: http://www.ensaiosclinicos.gov.br/, RBR-5xnjbc - Sep 3, 2018.
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Affiliation(s)
- Erickson Duarte Bonifácio de Assis
- Aging and Neuroscience Laboratory, Federal University of Paraíba, João Pessoa, Brazil
- State Hospital for Emergency and Trauma Senator Humberto Lucena, João Pessoa, Paraíba, Brazil
| | | | | | | | - Ruth Gomes
- Aging and Neuroscience Laboratory, Federal University of Paraíba, João Pessoa, Brazil
| | - Evelyn Thais de Almeida Rodrigues
- Aging and Neuroscience Laboratory, Federal University of Paraíba, João Pessoa, Brazil
- State Hospital for Emergency and Trauma Senator Humberto Lucena, João Pessoa, Paraíba, Brazil
| | - Ussânio Mororó Meira
- Aging and Neuroscience Laboratory, Federal University of Paraíba, João Pessoa, Brazil
- State Hospital for Emergency and Trauma Senator Humberto Lucena, João Pessoa, Paraíba, Brazil
| | - Ledycnarf Januário de Holanda
- Laboratory of Intervention and Analysis of Movement, Department of Physical Therapy, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Ana Raquel Lindquist
- Laboratory of Intervention and Analysis of Movement, Department of Physical Therapy, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Edgard Morya
- Edmond and Lily Safra International Institute of Neuroscience, Santos Dumont Institute, Macaíba, Rio Grande do Norte, Brazil
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Mori N, Hosomi K, Nishi A, Dong D, Yanagisawa T, Khoo HM, Tani N, Oshino S, Saitoh Y, Kishima H. Difference in Analgesic Effects of Repetitive Transcranial Magnetic Stimulation According to the Site of Pain. Front Hum Neurosci 2021; 15:786225. [PMID: 34899224 PMCID: PMC8662379 DOI: 10.3389/fnhum.2021.786225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 10/29/2021] [Indexed: 01/09/2023] Open
Abstract
High-frequency repetitive transcranial magnetic stimulation (rTMS) of the primary motor cortex for neuropathic pain has been shown to be effective, according to systematic reviews and therapeutic guidelines. However, our large, rigorous, investigator-initiated, registration-directed clinical trial failed to show a positive primary outcome, and its subgroup analysis suggested that the analgesic effect varied according to the site of pain. The aim of this study was to investigate the differences in analgesic effects of rTMS for neuropathic pain between different pain sites by reviewing our previous clinical trials. We included three clinical trials in this mini meta-analysis: a multicenter randomized controlled trial at seven hospitals (N = 64), an investigator-initiated registration-directed clinical trial at three hospitals (N = 142), and an exploratory clinical trial examining different stimulation parameters (N = 22). The primary efficacy endpoint (change in pain scale) was extracted for each patient group with pain in the face, upper limb, or lower limb, and a meta-analysis of the efficacy of active rTMS against sham stimulation was performed. Standardized mean difference (SMD) with 95% confidence interval (CI) was calculated for pain change using a random-effects model. The analgesic effect of rTMS for upper limb pain was favorable (SMD = -0.45, 95% CI: -0.77 to -0.13). In contrast, rTMS did not produce significant pain relief on lower limb pain (SMD = 0.04, 95% CI: -0.33 to 0.41) or face (SMD = -0.24, 95% CI: -1.59 to 1.12). In conclusion, these findings suggest that rTMS provides analgesic effects in patients with neuropathic pain in the upper limb, but not in the lower limb or face, under the conditions of previous clinical trials. Owing to the main limitation of small number of studies included, many aspects should be clarified by further research and high-quality studies in these patients.
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Affiliation(s)
- Nobuhiko Mori
- Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Koichi Hosomi
- Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Japan,*Correspondence: Koichi Hosomi,
| | - Asaya Nishi
- Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Dong Dong
- Department of Mechanical Science and Bioengineering, Osaka University Graduate School of Engineering Science, Toyonaka, Japan
| | - Takufumi Yanagisawa
- Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Japan,Osaka University Institute for Advanced Co-Creation Studies, Suita, Japan
| | - Hui Ming Khoo
- Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Naoki Tani
- Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Satoru Oshino
- Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Youichi Saitoh
- Department of Mechanical Science and Bioengineering, Osaka University Graduate School of Engineering Science, Toyonaka, Japan,Tokuyukai Rehabilitation Clinic, Toyonaka, Japan
| | - Haruhiko Kishima
- Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Japan
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Jiang X, Yan W, Wan R, Lin Y, Zhu X, Song G, Zheng K, Wang Y, Wang X. Effects of repetitive transcranial magnetic stimulation on neuropathic pain: A systematic review and meta-analysis. Neurosci Biobehav Rev 2021; 132:130-141. [PMID: 34826512 DOI: 10.1016/j.neubiorev.2021.11.037] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 11/13/2021] [Accepted: 11/22/2021] [Indexed: 12/27/2022]
Abstract
Neuropathic pain (NP) is a chronic pain condition caused by lesion or disease of the somatosensory nervous system. Repetitive transcranial magnetic stimulation (rTMS) is a neuroregulatory tool that uses pulsed magnetic fields to modulate the cerebral cortex. This review aimed to ascertain the therapeutic effect of rTMS on NP and potential factors regulating the therapeutic effect of rTMS. Database search included Web of Science, Embase, Pubmed, and Cochrane Library from inception to July 2021. Eligible studies included randomized controlled studies of the analgesic effects of rTMS in patients with NP. Thirty-eight studies were included. Random effect analysis showed effect sizes of -0.66 (95 % CI, -0.87 to -0.46), indicating that real rTMS was better than sham condition in reducing pain (P < 0.001). This comprehensive review indicated that stimulation frequency, intervention site, and location of lesion were important factors affecting the therapeutic effect. The findings of this study may guide clinical decisions and future research.
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Affiliation(s)
- Xue Jiang
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China; Department of Rehabilitation Medicine, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Wangwang Yan
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China; Department of Rehabilitation Medicine, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ruihan Wan
- Department of Sport Rehabilitation, Shenyang Sport University, Shenyang, China; Department of Rehabilitation Medicine, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yangyang Lin
- Department of Rehabilitation Medicine, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xiaoxia Zhu
- Department of Rehabilitation Medicine, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ge Song
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
| | - Kangyong Zheng
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
| | - Yuling Wang
- Department of Rehabilitation Medicine, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
| | - Xueqiang Wang
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China; Department of Rehabilitation Medicine, Shanghai Shangti Orthopaedic Hospital, Shanghai, China.
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Xu R, Xie ME, Jackson CM. Trigeminal Neuralgia: Current Approaches and Emerging Interventions. J Pain Res 2021; 14:3437-3463. [PMID: 34764686 PMCID: PMC8572857 DOI: 10.2147/jpr.s331036] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 09/13/2021] [Indexed: 12/22/2022] Open
Abstract
Trigeminal neuralgia (TN) has been described in the literature as one of the most debilitating presentations of orofacial pain. This review summarizes over 150 years of collective clinical experience in the medical and surgical treatment of TN. Fundamentally, TN remains a clinical diagnosis that must be distinguished from other types of trigeminal neuropathic pain and/or facial pain associated with other neuralgias or headache syndromes. What is increasingly clear is that there is no catch-all medical or surgical intervention that is effective for all patients with trigeminal neuralgia, likely reflective of the fact that TN is likely a heterogenous group of disorders that jointly manifests in facial pain. The first-line treatment for TN remains anticonvulsant medical therapy. Patients who fail this have a range of surgical options available to them. In general, microvascular decompression is a safe and effective procedure with immediate and durable outcomes. Patients who are unable to tolerate general anesthesia or whose medical comorbidities preclude a suboccipital craniectomy may benefit from percutaneous methodologies including glycerol or radiofrequency ablation, or both. For patients with bleeding diathesis due to blood thinning medications who are ineligible for invasive procedures, or for those who are unwilling to undergo open surgical procedures, radiosurgery may be an excellent option-provided the patient understands that maximum pain relief will take on the order of months to achieve. Finally, peripheral neurectomies continue to provide an inexpensive and resource-sparing alternative to pain relief for patients in locations with limited economic and medical resources. Ultimately, elucidation of the molecular mechanisms underlying trigeminal neuralgia will pave the way for novel, more effective and less invasive therapies.
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Affiliation(s)
- Risheng Xu
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Michael E Xie
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Christopher M Jackson
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Sanganahalli BG, Chitturi J, Herman P, Elkabes S, Heary R, Hyder F, Kannurpatti S. Supraspinal sensorimotor and pain-related reorganization after a hemicontusion rat cervical spinal cord injury. J Neurotrauma 2021; 38:3393-3405. [PMID: 34714150 DOI: 10.1089/neu.2021.0190] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Since the presence of pain impedes motor recovery in individuals with spinal cord injury (SCI), it is necessary to understand their supraspinal substrates in translational animal models. Using functional magnetic resonance imaging (fMRI) in a rat model of hemicontusion cervical SCI, supraspinal changes were mapped and correlated with sensorimotor behavioral outcomes. Female adult rats underwent sham or SCI using a 2.5 mm impactor and 150 kDyne force. SCI permanently impaired motor activity in only the ipsilesional forelimb along with thermal hyperalgesia at 5 and 6 wks. Spinal MRI at 8 wks after SCI showed ipsilateral T1 and T2 lesions with no discernable lesions across shams. fMRI mapping during electrical forepaw stimulation indicated SCI-induced sensorimotor reorganization with an expansion of the contralesional forelimb representation. Resting state fMRI based functional connectivity density (FCD), a marker of regional neuronal hubs increased or decreased across brain regions involved in nociception. FCD increases after SCI were in the primary and secondary somatosensory cortices (S1 and S2), anterior cingulate cortex (ACC), insula and the prefrontal cortex (PFC) and decreases were across the hippocampus, thalamus, hypothalamus and amygdala in SCI. Resting state functional connectivity (RSFC) assessments from the FCD altered regions of interest indicated cortico-cortical RSFC increases and cortico-insular, cortico-thalamic and cortico-hypothalamic RSFC decreases after SCI. Hippocampus, amygdala and thalamus showed decreased RSFC with most cortical regions and between themselves except the hippocampus-amygdala network, which showed increased RSFC after SCI. While select nociceptive region's intrinsic activity associated strongly with evoked pain behaviors after SCI (eg., PFC, ACC, hippocampus, thalamus, hypothalamus, M1 and S1BF) other nociceptive regions had weaker associations (eg., amygdala, insula, auditory cortex, S1FL, S1HL, S2 and M2), but differed significantly in their intrinsic activities between sham and SCI. The weaker associated nociceptive regions may possibly encode both the evoked and affective components of pain.
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Affiliation(s)
- Basavaraju G Sanganahalli
- Yale University School of Medicine, 12228, Diagnostic Radiology, New Haven, Connecticut, United States;
| | - Jyothsna Chitturi
- Rutgers Biomedical and Health Sciences, 5751, Radiology, Newark, New Jersey, United States;
| | - Peter Herman
- Yale University School of Medicine, 12228, Magnetic Resonance Research Center, Department of Diagnostic Radiology and Biomedical Engineering, Section of Bioimaging Science, New Haven, Connecticut, United States;
| | - Stella Elkabes
- Rutgers Biomedical and Health Sciences, 5751, Neurosurgery, Newark, New Jersey, United States;
| | - Robert Heary
- Hackensack Meridian School of Medicine, 576909, Nutley, New Jersey, United States;
| | | | - Sridhar Kannurpatti
- Rutgers Biomedical and Health Sciences, 5751, Radiology, Newark, New Jersey, United States;
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Toledo RS, Stein DJ, Stefani Sanches PR, de Souza A, da Silva LS, Medeiros HR, de Souza Antunes MA, de Castro JM, Fregni F, Caumo W, Torres ILS. Repetitive Transcranial Magnetic Stimulation (rTMS) Reverses the Long-term Memory Impairment and the Decrease of Hippocampal Interleukin-10 Levels, both Induced by Neuropathic Pain in Rats. Neuroscience 2021; 472:51-59. [PMID: 34358630 DOI: 10.1016/j.neuroscience.2021.07.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 06/16/2021] [Accepted: 07/25/2021] [Indexed: 12/27/2022]
Abstract
Neuropathic pain (NP) is characterized by the presence of spontaneous pain, allodynia and hyperalgesia. Repetitive transcranial magnetic stimulation (rTMS) is one of neuromodulatory techniques that induces satisfactory NP relief, including that from refractory pain patients. The objective of this study was to evaluate rTMS treatment over long term memory (LTM) and hippocampal BDNF and IL-10 levels in rats submitted to a NP model. A total of 81 adult (60-days old) male Wistar rats were randomly allocated to one of the following 9 experimental groups: control, control + sham rTMS, control + rTMS, sham neuropathic pain, sham neuropathic pain + sham rTMS, sham neuropathic pain + rTMS, neuropathic pain (NP), neuropathic pain + sham rTMS and neuropathic pain + rTMS. Fourteen days after the surgery for chronic constriction injury (CCI) of the sciatic nerve, NP establishment was accomplished. Then, rats were treated with daily 5-minute sessions of rTMS for eight consecutive days. LTM was assessed by the object recognition test (ORT) twenty-four hours after the end of rTMS treatment. Biochemical assays (BDNF and IL-10 levels) were performed in hippocampus tissue homogenates. rTMS treatment reversed the reduction of the discrimination index in the ORT and the hippocampal IL-10 levels in NP rats. This result shows that rTMS reverses the impairment LTM and the increase in the hippocampal IL-10 levels, both induced by NP. Moreover, it appears to be a safe non-pharmacological therapeutic tool since it did not alter LTM and neurochemical parameters in naive animals.
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Affiliation(s)
- Roberta Ströher Toledo
- Programa de Pós-Graduação em Ciências Biológicas: Farmacologia e Terapêutica - Instituto de Ciências Básicas da Saúde - Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Laboratório de Farmacologia da Dor e Neuromodulação: Investigações Pré-Clínicas - Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Dirson João Stein
- Laboratório de Farmacologia da Dor e Neuromodulação: Investigações Pré-Clínicas - Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Medicina: Ciências Médicas - Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Paulo Roberto Stefani Sanches
- Serviço de Pesquisa e Desenvolvimento em Engenharia Biomédica, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Andressa de Souza
- Laboratório de Farmacologia da Dor e Neuromodulação: Investigações Pré-Clínicas - Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Lisiane Santos da Silva
- Laboratório de Farmacologia da Dor e Neuromodulação: Investigações Pré-Clínicas - Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Medicina: Ciências Médicas - Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Helouise Richardt Medeiros
- Laboratório de Farmacologia da Dor e Neuromodulação: Investigações Pré-Clínicas - Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Medicina: Ciências Médicas - Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Mayra Angélica de Souza Antunes
- Laboratório de Farmacologia da Dor e Neuromodulação: Investigações Pré-Clínicas - Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Josimar Macedo de Castro
- Laboratório de Farmacologia da Dor e Neuromodulação: Investigações Pré-Clínicas - Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Medicina: Ciências Médicas - Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Felipe Fregni
- Laboratory of Neuromodulation, Department of Physical Medicine & Rehabilitation, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard University, Boston, MA, USA
| | - Wolnei Caumo
- Programa de Pós-Graduação em Medicina: Ciências Médicas - Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Iraci L S Torres
- Programa de Pós-Graduação em Ciências Biológicas: Farmacologia e Terapêutica - Instituto de Ciências Básicas da Saúde - Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Laboratório de Farmacologia da Dor e Neuromodulação: Investigações Pré-Clínicas - Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Medicina: Ciências Médicas - Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
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Giovannini S, Coraci D, Brau F, Galluzzo V, Loreti C, Caliandro P, Padua L, Maccauro G, Biscotti L, Bernabei R. Neuropathic Pain in the Elderly. Diagnostics (Basel) 2021; 11:diagnostics11040613. [PMID: 33808121 PMCID: PMC8066049 DOI: 10.3390/diagnostics11040613] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/18/2021] [Accepted: 03/25/2021] [Indexed: 02/06/2023] Open
Abstract
Neuropathic pain due to a lesion or a disease of the somatosensory system often affects older people presenting several comorbidities. Moreover, elderly patients are often poly-medicated, hospitalized and treated in a nursing home with a growing risk of drug interaction and recurrent hospitalization. Neuropathic pain in the elderly has to be managed by a multidimensional approach that involves several medical, social and psychological professionals in order to improve the quality of life of the patients and, where present, their relatives.
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Affiliation(s)
- Silvia Giovannini
- Department of Aging, Neurological, Orthopaedic and Head-Neck Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (D.C.); (F.B.); (V.G.); (C.L.); (P.C.); (L.P.); (G.M.); (L.B.); (R.B.)
- Correspondence: ; Tel.: +39-063015-4341
| | - Daniele Coraci
- Department of Aging, Neurological, Orthopaedic and Head-Neck Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (D.C.); (F.B.); (V.G.); (C.L.); (P.C.); (L.P.); (G.M.); (L.B.); (R.B.)
- Department of Neurosciences, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Fabrizio Brau
- Department of Aging, Neurological, Orthopaedic and Head-Neck Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (D.C.); (F.B.); (V.G.); (C.L.); (P.C.); (L.P.); (G.M.); (L.B.); (R.B.)
- Department of Geriatrics and Orthopaedics, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Vincenzo Galluzzo
- Department of Aging, Neurological, Orthopaedic and Head-Neck Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (D.C.); (F.B.); (V.G.); (C.L.); (P.C.); (L.P.); (G.M.); (L.B.); (R.B.)
- Department of Geriatrics and Orthopaedics, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Claudia Loreti
- Department of Aging, Neurological, Orthopaedic and Head-Neck Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (D.C.); (F.B.); (V.G.); (C.L.); (P.C.); (L.P.); (G.M.); (L.B.); (R.B.)
| | - Pietro Caliandro
- Department of Aging, Neurological, Orthopaedic and Head-Neck Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (D.C.); (F.B.); (V.G.); (C.L.); (P.C.); (L.P.); (G.M.); (L.B.); (R.B.)
| | - Luca Padua
- Department of Aging, Neurological, Orthopaedic and Head-Neck Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (D.C.); (F.B.); (V.G.); (C.L.); (P.C.); (L.P.); (G.M.); (L.B.); (R.B.)
- Department of Geriatrics and Orthopaedics, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Giulio Maccauro
- Department of Aging, Neurological, Orthopaedic and Head-Neck Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (D.C.); (F.B.); (V.G.); (C.L.); (P.C.); (L.P.); (G.M.); (L.B.); (R.B.)
- Department of Geriatrics and Orthopaedics, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Lorenzo Biscotti
- Department of Aging, Neurological, Orthopaedic and Head-Neck Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (D.C.); (F.B.); (V.G.); (C.L.); (P.C.); (L.P.); (G.M.); (L.B.); (R.B.)
- Presiding Officer of Geriatric Care Promotion and Development Centre (C.E.P.S.A.G), Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Roberto Bernabei
- Department of Aging, Neurological, Orthopaedic and Head-Neck Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy; (D.C.); (F.B.); (V.G.); (C.L.); (P.C.); (L.P.); (G.M.); (L.B.); (R.B.)
- Department of Geriatrics and Orthopaedics, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
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New Approaches Based on Non-Invasive Brain Stimulation and Mental Representation Techniques Targeting Pain in Parkinson's Disease Patients: Two Study Protocols for Two Randomized Controlled Trials. Brain Sci 2021; 11:brainsci11010065. [PMID: 33561080 PMCID: PMC7825448 DOI: 10.3390/brainsci11010065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/26/2020] [Accepted: 01/01/2021] [Indexed: 12/14/2022] Open
Abstract
Pain is an under-reported but prevalent symptom in Parkinson’s Disease (PD), impacting patients’ quality of life. Both pain and PD conditions cause cortical excitability reduction and non-invasive brain stimulation. Mental representation techniques are thought to be able to counteract it, also resulting effectively in chronic pain conditions. We aim to conduct two independent studies in order to evaluate the efficacy of transcranial direct current stimulation (tDCS) and mental representation protocol in the management of pain in PD patients during the ON state: (1) tDCS over the Primary Motor Cortex (M1); and (2) Action Observation (AO) and Motor Imagery (MI) training through a Brain-Computer Interface (BCI) using Virtual Reality (AO + MI-BCI). Both studies will include 32 subjects in a longitudinal prospective parallel randomized controlled trial design under different blinding conditions. The main outcomes will be score changes in King’s Parkinson’s Disease Pain Scale, Brief Pain Inventory, Temporal Summation, Conditioned Pain Modulation, and Pain Pressure Threshold. Assessment will be performed pre-intervention, post-intervention, and 15 days post-intervention, in both ON and OFF states.
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39
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Motor cortical excitability behavior in chronic spinal cord injury neuropathic pain individuals submitted to transcranial direct current stimulation-case reports. Spinal Cord Ser Cases 2020; 6:101. [PMID: 33208726 DOI: 10.1038/s41394-020-00355-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 10/06/2020] [Accepted: 10/17/2020] [Indexed: 11/09/2022] Open
Abstract
INTRODUCTION Increased excitability of the motor cortex through transcranial direct current stimulation (tDCS) has been described as a non-pharmacological strategy for the treatment of Spinal Cord Injury neuropathic pain (SCINP). It is also believed that the ability to enhance motor cortex excitability (MCE) could be impaired within chronic SCINP individuals. The following case reports describe the MCE behavior in individuals with chronic SCINP submitted to electrical non-invasive neuromodulation. CASE PRESENTATIONS This article reports 11 cases with chronic SCINP in which each individual was submitted to a 5-day pre-post MCE analysis in order to evaluate its behavior after the anodal tDCS sessions. All cases maintained ongoing pharmacological treatment. Four individuals have shown negative variation of the MCE, two of which reported pain intensity reduction. Three other individuals had MCE-positive variation along 5 days, from which only one reported a VAS 0.5 pain reduction after the 5th day of observation. The other four individuals did not present significant variation of the MCE. DISCUSSION The positive variation of MCE was significantly altered by adjunctive tDCS only in three individuals, though no clinically relevant reduction in pain intensity was reported among these participants. Key factors such as pain and injury duration, age, chronic medication use and underlying maladaptive neuroplasticity may influence responsiveness to brain stimulation within this population. These case reports try to add evidence for cautious recommendation of tDCS in chronic SCINP individuals and to the necessity of identifying groups of individuals that are most susceptible to neuromodulation.
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Yu K, Niu X, He B. Neuromodulation Management of Chronic Neuropathic Pain in The Central Nervous system. ADVANCED FUNCTIONAL MATERIALS 2020; 30:1908999. [PMID: 34335132 PMCID: PMC8323399 DOI: 10.1002/adfm.201908999] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Indexed: 05/05/2023]
Abstract
Neuromodulation is becoming one of the clinical tools for treating chronic neuropathic pain by transmitting controlled physical energy to the pre-identified neural targets in the central nervous system. Its nature of drug-free, non-addictive and improved targeting have attracted increasing attention among neuroscience research and clinical practices. This article provides a brief overview of the neuropathic pain and pharmacological routines for treatment, summarizes both the invasive and non-invasive neuromodulation modalities for pain management, and highlights an emerging brain stimulation technology, transcranial focused ultrasound (tFUS) with a focus on ultrasound transducer devices and the achieved neuromodulation effects and applications on pain management. Practical considerations of spatial guidance for tFUS are discussed for clinical applications. The safety of transcranial ultrasound neuromodulation and its future prospectives on pain management are also discussed.
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Affiliation(s)
| | | | - Bin He
- Department of Biomedical Engineering, Carnegie Mellon University
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Gatzinsky K, Bergh C, Liljegren A, Silander H, Samuelsson J, Svanberg T, Samuelsson O. Repetitive transcranial magnetic stimulation of the primary motor cortex in management of chronic neuropathic pain: a systematic review. Scand J Pain 2020; 21:8-21. [PMID: 32892189 DOI: 10.1515/sjpain-2020-0054] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 07/27/2020] [Indexed: 12/18/2022]
Abstract
OBJECTIVES Repetitive transcranial magnetic stimulation (rTMS) of the primary motor cortex (M1) with frequencies 5-20 Hz is an expanding non-invasive treatment for chronic neuropathic pain (NP). Outcome data, however, show considerable inhomogeneity with concern to the levels of effect due to the great diversity of treated conditions. The aim of this review was to survey the literature regarding the efficacy and safety of M1 rTMS, and the accuracy to predict a positive response to epidural motor cortex stimulation (MCS) which is supposed to give a more longstanding pain relief. METHODS A systematic literature search was conducted up to June 2019 in accordance with the PRISMA guidelines. We used the PICO Model to define two specific clinical questions: (1) Does rTMS of M1 relieve NP better than sham treatment? (2) Can the response to rTMS be used to predict the effect of epidural MCS? After article selection, data extraction, and study quality assessment, the certainty of evidence of treatment effect was defined using the GRADE system. RESULTS Data on 5-20 Hz (high-frequency) rTMS vs. sham was extracted from 24 blinded randomised controlled trials which were of varying quality, investigated highly heterogeneous pain conditions, and used excessively variable stimulation parameters. The difference in pain relief between active and sham stimulation was statistically significant in 9 of 11 studies using single-session rTMS, and in 9 of 13 studies using multiple sessions. Baseline data could be extracted from 6 single and 12 multiple session trials with a weighted mean pain reduction induced by active rTMS, compared to baseline, of -19% for single sessions, -32% for multiple sessions with follow-up <30 days, and -24% for multiple sessions with follow-up ≥30 days after the last stimulation session. For single sessions the weighted mean difference in pain reduction between active rTMS and sham was 15 percentage points, for multiple sessions the difference was 22 percentage points for follow-ups <30 days, and 15 percentage points for follow-ups ≥30 days. Four studies reported data that could be used to evaluate the accuracy of rTMS to predict response to MCS, showing a specificity of 60-100%, and a positive predictive value of 75-100%. No serious adverse events were reported. CONCLUSIONS rTMS targeting M1 can result in significant reduction of chronic NP which, however, is transient and shows a great heterogeneity between studies; very low certainty of evidence for single sessions and low for multiple sessions. Multiple sessions of rTMS can maintain a more longstanding effect. rTMS seems to be a fairly good predictor of a positive response to epidural MCS and may be used to select patients for implantation of permanent epidural electrodes. More studies are needed to manifest the use of rTMS for this purpose. Pain relief outcomes in a longer perspective, and outcome variables other than pain reduction need to be addressed more consistently in future studies to consolidate the applicability of rTMS in routine clinical practice.
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Affiliation(s)
- Kliment Gatzinsky
- Department of Neurosurgery, Sahlgrenska University Hospital, Göteborg, Sweden
| | | | - Ann Liljegren
- HTA-centrum of Region Västra Götaland, Göteborg, Sweden
| | - Hans Silander
- Department of Neurosurgery, Sahlgrenska University Hospital, Göteborg, Sweden
| | - Jennifer Samuelsson
- Department of Neurosurgery, Sahlgrenska University Hospital, Göteborg, Sweden
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Shen Z, Li Z, Ke J, He C, Liu Z, Zhang D, Zhang Z, Li A, Yang S, Li X, Li R, Zhao K, Ruan Q, Du H, Guo L, Yin F. Effect of non-invasive brain stimulation on neuropathic pain following spinal cord injury: A systematic review and meta-analysis. Medicine (Baltimore) 2020; 99:e21507. [PMID: 32846761 PMCID: PMC7447445 DOI: 10.1097/md.0000000000021507] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND In recent years, some studies indicated that repetitive transcranial magnetic stimulation (rTMS) could relieve neuropathic pain (NP) following a spinal cord injury (SCI), whereas some studies showed no pain relief effect. In addition, some studies showed the analgesic effect of transcranial direct current stimulation (tDCS) on NP post SCI, whereas other studies showed no effect. METHODS We systematically searched on the PubMed, Web of Science, EMBASE, Medline, Google Scholar for studies exploring the analgesic effect of rTMS or tDCS on NP post SCI until November 2019. Meta-analysis was conducted to summarize results of these studies. RESULTS The present quantitative meta-analysis indicated no significant difference in the effect of treatment on NP following SCI between rTMS and sham rTMS over the motor cortex at about 1 week after the end of the rTMS period (standardized mean difference (SMD) = 2.89, 95% confidence interval (CI) = -0.27 to 6.04). However, the study indicated that rTMS showed significantly better pain relief of treatment compared with sham rTMS between 2 and 6 weeks after the end of the rTMS period (SMD = 3.81, 95%CI: 0.80-7.52). However, no sufficient evidence could be provided to make a meta-analysis for the analgesic effect of tDCS on NP following SCI over the primary motor area (M1). CONCLUSIONS In conclusion, the present meta-analysis suggested that rTMS did not show early analgesic effect on NP after SCI, but showed better middle-term analgesic effect, compared with sham rTMS. More large scale, blinded randomized controlled trials (RCTs) were needed to explore the analgesic effect of rTMS and tDCS on NP following SCI.
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Affiliation(s)
- Zhubin Shen
- Department of Orthopaedic, China–Japan Union Hospital
| | - Zhongrun Li
- Department of Toxicology, School of Public Health, Jilin University, Changchun, China
| | - Junran Ke
- Department of Orthopaedic, China–Japan Union Hospital
| | - Changhao He
- Department of Toxicology, School of Public Health, Jilin University, Changchun, China
| | - Zhiming Liu
- Department of Orthopaedic, China–Japan Union Hospital
| | - Din Zhang
- Department of Orthopaedic, China–Japan Union Hospital
| | - Zhili Zhang
- Department of Toxicology, School of Public Health, Jilin University, Changchun, China
| | - Anpei Li
- Department of Toxicology, School of Public Health, Jilin University, Changchun, China
| | - Shuang Yang
- Department of Orthopaedic, China–Japan Union Hospital
| | - Xiaolong Li
- Department of Orthopaedic, China–Japan Union Hospital
| | - Ran Li
- Department of Orthopaedic, China–Japan Union Hospital
| | - Kunchi Zhao
- Department of Orthopaedic, China–Japan Union Hospital
| | - Qing Ruan
- Department of Orthopaedic, China–Japan Union Hospital
| | - Haiying Du
- Department of Toxicology, School of Public Health, Jilin University, Changchun, China
| | - Li Guo
- Department of Toxicology, School of Public Health, Jilin University, Changchun, China
| | - Fei Yin
- Department of Orthopaedic, China–Japan Union Hospital
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Li W, Yang Y, Huang J, Zhang H, Zeng D, Jiang L, Liu J. Electroacupuncture-induced plasticity between face and hand representations in motor cortex is associated with recovery of function after facial nerve injury. Acupunct Med 2020; 39:75-77. [PMID: 32539425 DOI: 10.1177/0964528420920298] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Wenting Li
- Acupuncture Research Team, The Second Affiliated Hospital of 47879Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yiling Yang
- Acupuncture Research Team, The Second Affiliated Hospital of 47879Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jianpeng Huang
- Acupuncture Research Team, The Second Affiliated Hospital of 47879Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hui Zhang
- Acupuncture Research Team, The Second Affiliated Hospital of 47879Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Dian Zeng
- Acupuncture Research Team, The Second Affiliated Hospital of 47879Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Li Jiang
- Acupuncture Research Team, The Second Affiliated Hospital of 47879Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jianhua Liu
- Acupuncture Research Team, The Second Affiliated Hospital of 47879Guangzhou University of Chinese Medicine, Guangzhou, China
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Hodaj H, Payen JF, Hodaj E, Dumolard A, Maindet C, Cracowski JL, Delon-Martin C, Lefaucheur JP. Long-term treatment of chronic orofacial, pudendal, and central neuropathic limb pain with repetitive transcranial magnetic stimulation of the motor cortex. Clin Neurophysiol 2020; 131:1423-1432. [PMID: 32387962 DOI: 10.1016/j.clinph.2020.03.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 02/20/2020] [Accepted: 03/06/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To assess the long-term analgesic effects of high-frequency repetitive transcranial magnetic stimulation (rTMS) of the motor cortex in patients with chronic pain syndrome. METHODS The study included 57 patients (orofacial pain, n = 26, pudendal neuralgia, n = 18, and neuropathic limb pain, n = 13) with an "induction phase" of 12 daily rTMS sessions for 3 weeks, followed by a "maintenance phase" of bi-monthly sessions for the next five months. RESULTS All pain measures significantly decreased from baseline to the end of the induction phase. Analgesic response, defined as pain intensity decrease ≥ 30% compared to baseline, was observed in 39 patients (68%), who could be differentiated from non-responders from the 7th rTMS session. At the end of the maintenance phase (D180), 27 patients (47%) were still responders. Anxio-depressive symptoms and quality of life also improved. The analgesic response at the end of the induction phase was associated with lower pain score at baseline, and the response at the end of the maintenance phase was associated with lower anxio-depressive score at baseline. CONCLUSION The analgesic efficacy of motor cortex rTMS can be maintained in the long term in various chronic pain conditions. Patients with high pain level and severe anxio-depressive symptoms may have a less favorable profile to respond to the procedure. SIGNIFICANCE The overall impact of rTMS treatment on daily life requires a multidimensional evaluation that goes beyond the analgesic effect that can be achieved.
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Affiliation(s)
- Hasan Hodaj
- Centre de la Douleur, Pôle Anesthésie Réanimation, CHU Grenoble Alpes, F-38000 Grenoble, France; Grenoble Alpes University, Grenoble Institut Neurosciences, GIN, F-38000 Grenoble, France.
| | - Jean-François Payen
- Centre de la Douleur, Pôle Anesthésie Réanimation, CHU Grenoble Alpes, F-38000 Grenoble, France; Grenoble Alpes University, Grenoble Institut Neurosciences, GIN, F-38000 Grenoble, France
| | - Enkelejda Hodaj
- Centre d'Investigation Clinique, CHU Grenoble Alpes, F-38000 Grenoble, France
| | - Anne Dumolard
- Centre de la Douleur, Pôle Anesthésie Réanimation, CHU Grenoble Alpes, F-38000 Grenoble, France
| | - Caroline Maindet
- Centre de la Douleur, Pôle Anesthésie Réanimation, CHU Grenoble Alpes, F-38000 Grenoble, France
| | - Jean-Luc Cracowski
- Centre d'Investigation Clinique, CHU Grenoble Alpes, F-38000 Grenoble, France
| | - Chantal Delon-Martin
- Grenoble Alpes University, Grenoble Institut Neurosciences, GIN, F-38000 Grenoble, France
| | - Jean-Pascal Lefaucheur
- EA 4391, Service de Physiologie - Explorations Fonctionnelles, Hôpital Henri Mondor, Université Paris Est Créteil, Créteil, France
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Motor cortex stimulation in chronic neuropathic orofacial pain syndromes: a systematic review and meta-analysis. Sci Rep 2020; 10:7195. [PMID: 32346080 PMCID: PMC7189245 DOI: 10.1038/s41598-020-64177-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 04/10/2020] [Indexed: 01/21/2023] Open
Abstract
Invasive motor Cortex Stimulation (iMCS) was introduced in the 1990's for the treatment of chronic neuropathic orofacial pain (CNOP), although its effectiveness remains doubtful. However, CNOP is known to be a heterogeneous group of orofacial pain disorders, which can lead to different responses to iMCS. Therefore, this paper investigated (1) whether the effectiveness of iMCS is significantly different among different CNOP disorders and (2) whether other confounding factors can be impacting iMCS results in CNOP. A systematic review and meta-analysis using a linear mixed-model was performed. Twenty-three papers were included, totaling 140 CNOP patients. Heterogeneity of the studies showed to be 55.8%. A visual analogue scale (VAS) measured median pain relief of 66.5% (ranging from 0-100%) was found. Linear mixed-model analysis showed that patients suffering from trigeminal neuralgia responded significantly more favorable to iMCS than patients suffering from dysfunctional pain syndromes (p = 0.030). Also, patients suffering from CNOP caused by (supra)nuclear lesions responded marginally significantly better to iMCS than patients suffering from CNOP due to trigeminal nerve lesions (p = 0.049). No other confounding factors were elucidated. This meta-analysis showed that patients suffering from trigeminal neuralgia and patients suffering from (supra)nuclear lesions causing CNOP responded significantly more favorable than others on iMCS. No other confounding factors were found relevant.
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Lefaucheur JP, Aleman A, Baeken C, Benninger DH, Brunelin J, Di Lazzaro V, Filipović SR, Grefkes C, Hasan A, Hummel FC, Jääskeläinen SK, Langguth B, Leocani L, Londero A, Nardone R, Nguyen JP, Nyffeler T, Oliveira-Maia AJ, Oliviero A, Padberg F, Palm U, Paulus W, Poulet E, Quartarone A, Rachid F, Rektorová I, Rossi S, Sahlsten H, Schecklmann M, Szekely D, Ziemann U. Evidence-based guidelines on the therapeutic use of repetitive transcranial magnetic stimulation (rTMS): An update (2014-2018). Clin Neurophysiol 2020; 131:474-528. [PMID: 31901449 DOI: 10.1016/j.clinph.2019.11.002] [Citation(s) in RCA: 985] [Impact Index Per Article: 246.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 10/21/2019] [Accepted: 11/02/2019] [Indexed: 02/08/2023]
Abstract
A group of European experts reappraised the guidelines on the therapeutic efficacy of repetitive transcranial magnetic stimulation (rTMS) previously published in 2014 [Lefaucheur et al., Clin Neurophysiol 2014;125:2150-206]. These updated recommendations take into account all rTMS publications, including data prior to 2014, as well as currently reviewed literature until the end of 2018. Level A evidence (definite efficacy) was reached for: high-frequency (HF) rTMS of the primary motor cortex (M1) contralateral to the painful side for neuropathic pain; HF-rTMS of the left dorsolateral prefrontal cortex (DLPFC) using a figure-of-8 or a H1-coil for depression; low-frequency (LF) rTMS of contralesional M1 for hand motor recovery in the post-acute stage of stroke. Level B evidence (probable efficacy) was reached for: HF-rTMS of the left M1 or DLPFC for improving quality of life or pain, respectively, in fibromyalgia; HF-rTMS of bilateral M1 regions or the left DLPFC for improving motor impairment or depression, respectively, in Parkinson's disease; HF-rTMS of ipsilesional M1 for promoting motor recovery at the post-acute stage of stroke; intermittent theta burst stimulation targeted to the leg motor cortex for lower limb spasticity in multiple sclerosis; HF-rTMS of the right DLPFC in posttraumatic stress disorder; LF-rTMS of the right inferior frontal gyrus in chronic post-stroke non-fluent aphasia; LF-rTMS of the right DLPFC in depression; and bihemispheric stimulation of the DLPFC combining right-sided LF-rTMS (or continuous theta burst stimulation) and left-sided HF-rTMS (or intermittent theta burst stimulation) in depression. Level A/B evidence is not reached concerning efficacy of rTMS in any other condition. The current recommendations are based on the differences reached in therapeutic efficacy of real vs. sham rTMS protocols, replicated in a sufficient number of independent studies. This does not mean that the benefit produced by rTMS inevitably reaches a level of clinical relevance.
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Affiliation(s)
- Jean-Pascal Lefaucheur
- ENT Team, EA4391, Faculty of Medicine, Paris Est Créteil University, Créteil, France; Clinical Neurophysiology Unit, Department of Physiology, Henri Mondor Hospital, Assistance Publique - Hôpitaux de Paris, Créteil, France.
| | - André Aleman
- Department of Biomedical Sciences of Cells and Systems, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Chris Baeken
- Department of Psychiatry and Medical Psychology, Ghent Experimental Psychiatry (GHEP) Lab, Ghent University, Ghent, Belgium; Department of Psychiatry, University Hospital (UZBrussel), Brussels, Belgium; Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - David H Benninger
- Neurology Service, Department of Clinical Neurosciences, Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
| | - Jérôme Brunelin
- PsyR2 Team, U1028, INSERM and UMR5292, CNRS, Center for Neuroscience Research of Lyon (CRNL), Centre Hospitalier Le Vinatier, Lyon-1 University, Bron, France
| | - Vincenzo Di Lazzaro
- Unit of Neurology, Neurophysiology, Neurobiology, Department of Medicine, Università Campus Bio-Medico di Roma, Rome, Italy
| | - Saša R Filipović
- Department of Human Neuroscience, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Christian Grefkes
- Department of Neurology, Cologne University Hospital, Cologne, Germany; Institute of Neurosciences and Medicine (INM3), Jülich Research Centre, Jülich, Germany
| | - Alkomiet Hasan
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany
| | - Friedhelm C Hummel
- Defitech Chair in Clinical Neuroengineering, Center for Neuroprosthetics (CNP) and Brain Mind Institute (BMI), Swiss Federal Institute of Technology (EPFL), Geneva, Switzerland; Defitech Chair in Clinical Neuroengineering, Swiss Federal Institute of Technology (EPFL) Valais and Clinique Romande de Réadaptation, Sion, Switzerland; Clinical Neuroscience, University of Geneva Medical School, Geneva, Switzerland
| | - Satu K Jääskeläinen
- Department of Clinical Neurophysiology, Turku University Hospital and University of Turku, Turku, Finland
| | - Berthold Langguth
- Department of Psychiatry and Psychotherapy, University of Regensburg, Regensburg, Germany
| | - Letizia Leocani
- Department of Neurorehabilitation and Experimental Neurophysiology Unit, Institute of Experimental Neurology (INSPE), IRCCS San Raffaele, University Vita-Salute San Raffaele, Milan, Italy
| | - Alain Londero
- Department of Otorhinolaryngology - Head and Neck Surgery, Université Paris Descartes Sorbonne Paris Cité, Hôpital Européen Georges Pompidou, Paris, France
| | - Raffaele Nardone
- Department of Neurology, Franz Tappeiner Hospital, Merano, Italy; Department of Neurology, Christian Doppler Medical Center, Paracelsus Medical University, Salzburg, Austria; Karl Landsteiner Institut für Neurorehabilitation und Raumfahrtneurologie, Salzburg, Austria
| | - Jean-Paul Nguyen
- Multidisciplinary Pain Center, Clinique Bretéché, ELSAN, Nantes, France; Multidisciplinary Pain, Palliative and Supportive Care Center, UIC22-CAT2-EA3826, University Hospital, CHU Nord-Laënnec, Nantes, France
| | - Thomas Nyffeler
- Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Bern, Switzerland; Perception and Eye Movement Laboratory, Department of Neurology, University of Bern, Bern, Switzerland; Neurocenter, Luzerner Kantonsspital, Lucerne, Switzerland
| | - Albino J Oliveira-Maia
- Champalimaud Research & Clinical Centre, Champalimaud Centre for the Unknown, Lisbon, Portugal; Department of Psychiatry and Mental Health, Centro Hospitalar de Lisboa Ocidental, Lisbon, Portugal; NOVA Medical School
- Faculdade de Ciências Médicas, Universidade Nova de Lisboa, Lisbon, Portugal
| | - Antonio Oliviero
- FENNSI Group, Hospital Nacional de Parapléjicos, SESCAM, Toledo, Spain
| | - Frank Padberg
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany
| | - Ulrich Palm
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany; Medical Park Chiemseeblick, Bernau, Germany
| | - Walter Paulus
- Department of Clinical Neurophysiology, University Medical Center Göttingen, Göttingen, Germany
| | - Emmanuel Poulet
- PsyR2 Team, U1028, INSERM and UMR5292, CNRS, Center for Neuroscience Research of Lyon (CRNL), Centre Hospitalier Le Vinatier, Lyon-1 University, Bron, France; Department of Emergency Psychiatry, Edouard Herriot Hospital, Groupement Hospitalier Centre, Hospices Civils de Lyon, Lyon, France
| | - Angelo Quartarone
- Department of Biomedical, Dental Sciences and Morphological and Functional Images, University of Messina, Messina, Italy
| | | | - Irena Rektorová
- Applied Neuroscience Research Group, Central European Institute of Technology, CEITEC MU, Masaryk University, Brno, Czech Republic; First Department of Neurology, St. Anne's University Hospital and Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Simone Rossi
- Department of Medicine, Surgery and Neuroscience, Si-BIN Lab Human Physiology Section, Neurology and Clinical Neurophysiology Unit, University of Siena, Siena, Italy
| | - Hanna Sahlsten
- ENT Clinic, Mehiläinen and University of Turku, Turku, Finland
| | - Martin Schecklmann
- Department of Psychiatry and Psychotherapy, University of Regensburg, Regensburg, Germany
| | - David Szekely
- Department of Psychiatry, Princess Grace Hospital, Monaco
| | - Ulf Ziemann
- Department of Neurology and Stroke, and Hertie Institute for Clinical Brain Research, Eberhard Karls University, Tübingen, Germany
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Ramger BC, Bader KA, Davies SP, Stewart DA, Ledbetter LS, Simon CB, Feld JA. Effects of Non-Invasive Brain Stimulation on Clinical Pain Intensity and Experimental Pain Sensitivity Among Individuals with Central Post-Stroke Pain: A Systematic Review. J Pain Res 2019; 12:3319-3329. [PMID: 31853195 PMCID: PMC6916700 DOI: 10.2147/jpr.s216081] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 10/05/2019] [Indexed: 11/23/2022] Open
Abstract
Purpose Central post-stroke pain (CPSP) is a neuropathic disorder resulting in pain and disability. An emerging treatment for CPSP is non-invasive brain stimulation including direct current stimulation [tDCS] and repetitive transcranial magnetic stimulation [rTMS]. This systematic review analyzes the efficacy and quality of non-invasive brain stimulation intervention studies for CPSP. Methods Studies were sought from three research databases published between 2007 and 2017. Studies were included if the sole intervention was non-invasive brain stimulation and the primary outcome either clinical or experimental pain intensity. Studies were qualitatively assessed for risk of bias. Results Of 1107 articles extracted, six met eligibility criteria. Five studies found a decrease in pain intensity (p<0.05) immediately and 3 weeks after rTMS or tDCS was delivered over the primary motor cortex. For experimental pain, one study found thermal pain thresholds improved for those receiving tDCS compared to sham (p<0.05), while another found normalization of the cold detection threshold only after rTMS (p<0.05). Qualitative assessment revealed only one study rated as "excellent/good" quality, while the other five were rated as "fair" or "poor". Conclusion Non-invasive brain stimulation may have a therapeutic effect on pain level for individuals with CPSP, as evidenced by significant decreases in clinical and experimental pain scores. However, despite the impact of CPSP and the promise of non-invasive brain stimulation, few rigorous studies have been performed in this area. Future studies should aim to standardize treatment parameters, measure both clinical and experimental pain, and include long-term follow-up.
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Affiliation(s)
- Benjamin Curtis Ramger
- Physical Therapy Division, Department of Orthopedic Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Kimberly Anne Bader
- Physical Therapy Division, Department of Orthopedic Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Samantha Pauline Davies
- Physical Therapy Division, Department of Orthopedic Surgery, Duke University School of Medicine, Durham, NC, USA
| | - David Andrew Stewart
- Physical Therapy Division, Department of Orthopedic Surgery, Duke University School of Medicine, Durham, NC, USA
| | | | - Corey Brae Simon
- Physical Therapy Division, Department of Orthopedic Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Jody Ann Feld
- Physical Therapy Division, Department of Orthopedic Surgery, Duke University School of Medicine, Durham, NC, USA
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Abdelkader AA, El Gohary AM, Mourad HS, El Salmawy DA. Repetitive TMS in treatment of resistant diabetic neuropathic pain. THE EGYPTIAN JOURNAL OF NEUROLOGY, PSYCHIATRY AND NEUROSURGERY 2019. [DOI: 10.1186/s41983-019-0075-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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New procedure of high-frequency repetitive transcranial magnetic stimulation for central neuropathic pain: a placebo-controlled randomized crossover study. Pain 2019; 161:718-728. [DOI: 10.1097/j.pain.0000000000001760] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Kodama T, Katayama O, Nakano H, Ueda T, Murata S. Treatment of Medial Medullary Infarction Using a Novel iNems Training: A Case Report and Literature Review. Clin EEG Neurosci 2019; 50:429-435. [PMID: 30955363 DOI: 10.1177/1550059419840246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Objective. We describe the case of a 66-year-old Japanese male patient who developed medial medullary infarction along with severe motor paralysis and intense numbness of the left arm, pain catastrophizing, and abnormal physical sensation. We further describe his recovery using a new imagery neurofeedback-based multisensory systems (iNems) training method. Clinical Course and Intervention. The patient underwent physical therapy for the rehabilitation of motor paralysis and numbness of the paralyzed upper limbs; in addition, we implemented iNems training using EEG activity, which aims to synchronize movement intent (motor imagery) with sensory information (feedback visual information). Results. Considerable improvement in motor function, pain catastrophizing, representation of the body in the brain, and abnormal physical sensations was accomplished with iNems training. Furthermore, iNems training improved the neural activity of the default mode network at rest and the sensorimotor region when the movement was intended. Conclusions. The newly developed iNems could prove a novel, useful tool for neurorehabilitation considering that both behavioral and neurophysiological changes were observed in our case.
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Affiliation(s)
- Takayuki Kodama
- 1 Graduate School of Health Sciences, Kyoto Tachibana University, Kyoto, Japan
| | - Osamu Katayama
- 2 Department of Rehabilitation, Watanabe Hospital, Aichi, Japan
| | - Hideki Nakano
- 3 Department of Physical Therapy, Faculty of Health Sciences, Kyoto Tachibana University, Kyoto, Japan
| | - Tomohiro Ueda
- 1 Graduate School of Health Sciences, Kyoto Tachibana University, Kyoto, Japan
| | - Shin Murata
- 1 Graduate School of Health Sciences, Kyoto Tachibana University, Kyoto, Japan
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