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deep transcranial magnetic stimulation

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https://www.readbyqxmd.com/read/28938143/contribution-of-transcranial-magnetic-stimulation-to-assessment-of-brain-connectivity-and-networks
#1
REVIEW
Mark Hallett, Riccardo Di Iorio, Paolo Maria Rossini, Jung E Park, Robert Chen, Pablo Celnik, Antonio P Strafella, Hideyuki Matsumoto, Yoshikazu Ugawa
The goal of this review is to show how transcranial magnetic stimulation (TMS) techniques can make a contribution to the study of brain networks. Brain networks are fundamental in understanding how the brain operates. Effects on remote areas can be directly observed or identified after a period of stimulation, and each section of this review will discuss one method. EEG analyzed following TMS is called TMS-evoked potentials (TEPs). A conditioning TMS can influence the effect of a test TMS given over the motor cortex...
September 5, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28928648/a-single-session-of-rtms-enhances-small-worldness-in-writer-s-cramp-evidence-from-simultaneous-eeg-fmri-multi-modal-brain-graph
#2
Rose D Bharath, Rajanikant Panda, Venkateswara Reddy Reddam, M V Bhaskar, Suril Gohel, Sujas Bhardwaj, Arvind Prajapati, Pramod Kumar Pal
Background and Purpose: Repetitive transcranial magnetic stimulation (rTMS) induces widespread changes in brain connectivity. As the network topology differences induced by a single session of rTMS are less known we undertook this study to ascertain whether the network alterations had a small-world morphology using multi-modal graph theory analysis of simultaneous EEG-fMRI. Method: Simultaneous EEG-fMRI was acquired in duplicate before (R1) and after (R2) a single session of rTMS in 14 patients with Writer's Cramp (WC)...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28927961/clinical-and-electrophysiological-outcomes-of-deep-tms-over-the-medial-prefrontal-and-anterior-cingulate-cortices-in-ocd-patients
#3
Lior Carmi, Uri Alyagon, Noam Barnea-Ygael, Joseph Zohar, Reuven Dar, Abraham Zangen
BACKGROUND: Obsessive Compulsive Disorder (OCD) is a chronic and disabling disorder with poor response to pharmacological treatments. Converging evidences suggest that OCD patients suffer from dysfunction of the cortico-striato-thalamo-cortical (CSTC) circuit, including in the medial prefrontal cortex (mPFC) and the anterior cingulate cortex (ACC). OBJECTIVE: To examine whether modulation of mPFC-ACC activity by deep transcranial magnetic stimulation (DTMS) affects OCD symptoms...
September 6, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/28905370/neuromodulation-and-devices-in-trigeminal-neuralgia
#4
Kevin Weber
PREMISE: Trigeminal neuralgia is a severe facial pain disorder that has been studied for decades. Classical trigeminal neuralgia (CTN) is either idiopathic or caused by neurovascular compression. The related painful trigeminal neuropathies are often secondary to other causes, such as multiple sclerosis or trauma. PROBLEM: Therapies for trigeminal neuralgia and neuropathy have often been pharmacologic or surgical. Pharmacologic therapies are not effective in some cases and often cause side effects, some substantial...
September 14, 2017: Headache
https://www.readbyqxmd.com/read/28822321/neurostimulation-techniques-in-the-treatment-of-cocaine-dependence-a-review-of-the-literature
#5
REVIEW
Fady Rachid
OBJECTIVE: Cocaine use disorder is a very common condition that represents a substantial public health problem, and no effective pharmacological or psychological therapies have been identified to date. Urgent therapeutic alternatives are therefore needed such as neurostimulation techniques. The purpose of this review is to describe and discuss studies that have evaluated the safety and efficacy of these techniques for the treatment of cocaine dependence. METHODS: The electronic literature on repetitive transcranial magnetic stimulation, theta-burst stimulation, deep transcranial magnetic stimulation, transcranial direct current stimulation, magnetic seizure therapy, electroconvulsive therapy, cranial electro-stimulation, and deep brain stimulation in the treatment of cocaine addiction were reviewed...
August 10, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28802935/depression-and-anxiety-in-parkinson-s-disease
#6
Anette Schrag, Raquel N Taddei
Depression and anxiety are some of the most common comorbidities arising in patients with Parkinson's disease. However, their timely recognition and diagnosis are often hindered by overlap with other somatic features and a low rate of self-report. There is a need for greater awareness and for better assessment and treatment options are highly required. Currently available scales can serve as tools to monitor change over time and the effect of interventional strategies. Development of new therapeutic strategies, including nonpharmacological approaches such as transcranial magnetic stimulation and deep brain stimulation, may provide alternatives to currently available treatment approaches...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28664353/adopting-reciprocity-theorem-in-deep-transcranial-magnetic-stimulation-problem-to-design-an-efficient-single-source-coil-array-based-on-nerve-cell-direction
#7
Ali Mohtadi Jafari, Ali Abdolali
Deep transcranial magnetic stimulation (dTMS) plays an important role in the treatment of many diseases. Previous designs rarely considered the direction of the induced electric field (E) with respect to nerve fibers. However, it can be observed from related formulae that the tangential component of E (E effective) has a more significant role in the stimulation of nerve cells. In this paper, a new approach is proposed for designing a single-source coil array (CA) by combining tractography and the reciprocity theorem (RT)...
June 29, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28663570/brain-stimulation-in-obesity
#8
REVIEW
C H Göbel, V M Tronnier, T F Münte
Obesity is taking up epidemic proportions worldwide with significant impacts on the health of both the affected individual and on society as a whole. Treatment approaches consist of behavioural and pharmacological approaches, however, these are often found to be ineffective. In severe obesity, bariatric surgery is frequently performed. Unfortunately, 40% of patients show substantial weight gain over the long term or display the associated metabolic syndrome, making the development of novel therapies necessary...
June 30, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28655149/neuromodulation-of-axon-terminals
#9
Darpan Chakraborty, Dennis Q Truong, Marom Bikson, Hanoch Kaphzan
Understanding which cellular compartments are influenced during neuromodulation underpins any rational effort to explain and optimize outcomes. Axon terminals have long been speculated to be sensitive to polarization, but experimentally informed models for CNS stimulation are lacking. We conducted simultaneous intracellular recording from the neuron soma and axon terminal (blebs) during extracellular stimulation with weak sustained (DC) uniform electric fields in mouse cortical slices. Use of weak direct current stimulation (DCS) allowed isolation and quantification of changes in axon terminal biophysics, relevant to both suprathreshold (e...
June 24, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28586349/comparison-of-the-induced-fields-using-different-coil-configurations-during-deep-transcranial-magnetic-stimulation
#10
Mai Lu, Shoogo Ueno
Stimulation of deeper brain structures by transcranial magnetic stimulation (TMS) plays a role in the study of reward and motivation mechanisms, which may be beneficial in the treatment of several neurological and psychiatric disorders. However, electric field distributions induced in the brain by deep transcranial magnetic stimulation (dTMS) are still unknown. In this paper, the double cone coil, H-coil and Halo-circular assembly (HCA) coil which have been proposed for dTMS have been numerically designed. The distributions of magnetic flux density, induced electric field in an anatomically based realistic head model by applying the dTMS coils were numerically calculated by the impedance method...
2017: PloS One
https://www.readbyqxmd.com/read/28570499/stable-remission-of-multiple-chemical-sensitivity-syndrome-and-major-depression-with-citalopram-and-1-month-deep-transcranial-magnetic-stimulation-a-case-report
#11
Antonio Del Casale, Chiara Rapinesi, Georgios D Kotzalidis, Serena Sorice, Alessio Padovano, Giovanna Gentile, Gloria Angeletti, Stefano Ferracuti, Gabriele Sani, Maurizio Pompili, Maurizio Simmaco, Paolo Girardi
No abstract text is available yet for this article.
September 2017: Journal of ECT
https://www.readbyqxmd.com/read/28545010/factors-associated-with-response-after-deep-transcranial-magnetic-stimulation-in-a-real-world-clinical-setting-results-from-the-first-40-cases-of-treatment-resistant-depression
#12
K Feffer, K A B Lapidus, Y Braw, Y Bloch, S Kron, R Netzer, U Nitzan
BACKGROUND: Deep transcranial magnetic stimulation (dTMS) has been sanctioned by the United States Food and Drug Administration for treatment-resistant depression. In a retrospective cohort study, we evaluated response and effectiveness of dTMS in real-world practice, as an add-on treatment for resistant depression. METHODS: Forty adult outpatients suffering from depression, all taking psychiatric medications, underwent 20 dTMS treatments over a 4-6 week period...
April 11, 2017: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/28525197/-treatment-resistant-depression-actuality-and-perspectives-in-2017
#13
REVIEW
N Lucas, P Hubain, G Loas, F Jurysta
Major depressive disorder (MDD) affects 3 to 17 % of adults. 15 to 30 % of patients with MDD suffer from treatment resistant depression (TRD). No international consensus defines TRD. The most common definition is " MDD that is not enough improved after two successive and different classes of antidepressant treatments in appropriate dose and duration ". The appropriate dose corresponds to maximal dose accepted by scientific reports and clinical recommendations, while the appropriate duration is around 6 weeks...
2017: Revue Médicale de Bruxelles
https://www.readbyqxmd.com/read/28509934/the-role-of-the-prefrontal-cortex-in-freezing-of-gait-in-parkinson-s-disease-insights-from-a-deep-repetitive-transcranial-magnetic-stimulation-exploratory-study
#14
Moria Dagan, Talia Herman, Anat Mirelman, Nir Giladi, Jeffrey M Hausdorff
Freezing of Gait (FOG) is one of the most debilitating gait impairments in Parkinson's disease (PD), leading to increased fall risk and reduced health-related quality of life. The utility of parkinsonian medications is often limited in the case of FOG and it frequently becomes dopamine resistant. Recent studies have suggested that pre-frontal cortex (PFC) dysfunction contributes to FOG; however, most previous findings provide only indirect evidence. To better understand the role of the PFC, we aimed to investigate the impact of high frequency, deep, repetitive transcranial magnetic stimulation (drTMS) of the medial PFC on FOG and its mediators...
August 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28496402/cortico-striatal-thalamic-loop-circuits-of-the-orbitofrontal-cortex-promising-therapeutic-targets-in-psychiatric-illness
#15
REVIEW
Peter Fettes, Laura Schulze, Jonathan Downar
Corticostriatal circuits through the orbitofrontal cortex (OFC) play key roles in complex human behaviors such as evaluation, affect regulation and reward-based decision-making. Importantly, the medial and lateral OFC (mOFC and lOFC) circuits have functionally and anatomically distinct connectivity profiles which differentially contribute to the various aspects of goal-directed behavior. OFC corticostriatal circuits have been consistently implicated across a wide range of psychiatric disorders, including major depressive disorder (MDD), obsessive compulsive disorder (OCD), and substance use disorders (SUDs)...
2017: Frontiers in Systems Neuroscience
https://www.readbyqxmd.com/read/28486925/the-mutual-interaction-between-sleep-and-epilepsy-on-the-neurobiological-basis-and-therapy
#16
Yi-Qun Wang, Meng-Qi Zhang, Rui Li, Wei-Min Qu, Zhi-Li Huang
Sleep and epilepsy are mutually related in a complex, bidirectional manner. However, our understanding of this relationship remains unclear. In this paper, we address the issues involved in these phenomena and also discuss the various therapies used to modify them. The literatures of the neurobiological basis of the interactions between sleep and epilepsy indicate that non-rapid eye movement sleep and idiopathic generalized epilepsy share the same thalamocortical networks. Neuromodulators-such as adenosine, melatonin, prostaglandin D2, serotonin, and histamine-promote wakefulness and are considered to have antiepilepsy effects; antiepileptic drugs, in turn, also have effects on sleep...
May 8, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28474552/new-directions-in-the-use-of-brain-stimulation-interventions-in-patients-with-obsessive-compulsive-disorder
#17
Bernardo Dell'Osso, Laura Cremaschi, Lucio Oldani, Alfredo Carlo Altamura
Obsessive-Compulsive Disorder (OCD) is a highly disabling condition with early onset and chronic course in most of the affected patients. In addition, OCD may show high comorbidity and suicide attempt rates, which worsen the overall burden of the disease for patients and their caregivers. First-line treatments for OCD consist of pro-serotonergic compounds and cognitive-behavioral therapy. Nonetheless, many patients show only limited benefit from such interventions and require additional "next-step" interventions, including augmentative antipsychotics and glutamate-modulating agents...
May 4, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28390775/deep-transcranial-magnetic-stimulation-of-the-dorsolateral-prefrontal-cortex-in-alcohol-use-disorder-patients-effects-on-dopamine-transporter-availability-and-alcohol-intake
#18
Giovanni Addolorato, Mariangela Antonelli, Fabrizio Cocciolillo, Gabriele A Vassallo, Claudia Tarli, Luisa Sestito, Antonio Mirijello, Anna Ferrulli, Daniele A Pizzuto, Giovanni Camardese, Antonio Miceli, Marco Diana, Alessandro Giordano, Antonio Gasbarrini, Daniela Di Giuda
Repetitive Transcranial Magnetic Stimulation (rTMS) of the dorsolateral prefrontal cortex may affect neuro-adaptations associated with alcohol use disorder (AUD), potentially influencing craving and alcohol intake. We investigated alcohol intake and dopamine transporter (DAT) availability by Single Photon Emission Computed Tomography (SPECT) in the striatum of AUD patients before and after deep rTMS. Fourteen patients underwent baseline clinical and SPECT assessment. Eleven out of fourteen patients were randomized into two groups for the REAL (n...
April 5, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28330592/61-of-unmedicated-treatment-resistant-depression-patients-who-did-not-respond-to-acute-tms-treatment-responded-after-four-weeks-of-twice-weekly-deep-tms-in-the-brainsway-pivotal-trial
#19
Agustin G Yip, Mark S George, Aron Tendler, Yiftach Roth, Abraham Zangen, Linda L Carpenter
BACKGROUND: An acute course of dTMS typically involves treatments delivered 5 days a week, for 4 weeks. Should more treatments be given if the patient has not responded? Data are needed to inform decisions about the best next steps for acute non-responders. OBJECTIVE: To characterize response among acute-phase non-responders in a randomized controlled trial of deep repetitive transcranial magnetic stimulation (dTMS) monotherapy for medication-resistant depression...
March 10, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/28324454/reward-circuitry-in-addiction
#20
REVIEW
Sarah Cooper, A J Robison, Michelle S Mazei-Robison
Understanding the brain circuitry that underlies reward is critical to improve treatment for many common health issues, including obesity, depression, and addiction. Here we focus on insights into the organization and function of reward circuitry and its synaptic and structural adaptations in response to cocaine exposure. While the importance of certain circuits, such as the mesocorticolimbic dopamine pathway, are well established in drug reward, recent studies using genetics-based tools have revealed functional changes throughout the reward circuitry that contribute to different facets of addiction, such as relapse and craving...
July 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
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