1
|
Idlett-Ali SL, Salazar CA, Bell MS, Short EB, Rowland NC. Neuromodulation for treatment-resistant depression: Functional network targets contributing to antidepressive outcomes. Front Hum Neurosci 2023; 17:1125074. [PMID: 36936612 PMCID: PMC10018031 DOI: 10.3389/fnhum.2023.1125074] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 02/14/2023] [Indexed: 03/06/2023] Open
Abstract
Non-invasive brain stimulation is designed to target accessible brain regions that underlie many psychiatric disorders. One such method, transcranial magnetic stimulation (TMS), is commonly used in patients with treatment-resistant depression (TRD). However, for non-responders, the choice of an alternative therapy is unclear and often decided empirically without detailed knowledge of precise circuit dysfunction. This is also true of invasive therapies, such as deep brain stimulation (DBS), in which responses in TRD patients are linked to circuit activity that varies in each individual. If the functional networks affected by these approaches were better understood, a theoretical basis for selection of interventions could be developed to guide psychiatric treatment pathways. The mechanistic understanding of TMS is that it promotes long-term potentiation of cortical targets, such as dorsolateral prefrontal cortex (DLPFC), which are attenuated in depression. DLPFC is highly interconnected with other networks related to mood and cognition, thus TMS likely alters activity remote from DLPFC, such as in the central executive, salience and default mode networks. When deeper structures such as subcallosal cingulate cortex (SCC) are targeted using DBS for TRD, response efficacy has depended on proximity to white matter pathways that similarly engage emotion regulation and reward. Many have begun to question whether these networks, targeted by different modalities, overlap or are, in fact, the same. A major goal of current functional and structural imaging in patients with TRD is to elucidate neuromodulatory effects on the aforementioned networks so that treatment of intractable psychiatric conditions may become more predictable and targeted using the optimal technique with fewer iterations. Here, we describe several therapeutic approaches to TRD and review clinical studies of functional imaging and tractography that identify the diverse loci of modulation. We discuss differentiating factors associated with responders and non-responders to these stimulation modalities, with a focus on mechanisms of action for non-invasive and intracranial stimulation modalities. We advance the hypothesis that non-invasive and invasive neuromodulation approaches for TRD are likely impacting shared networks and critical nodes important for alleviating symptoms associated with this disorder. We close by describing a therapeutic framework that leverages personalized connectome-guided target identification for a stepwise neuromodulation paradigm.
Collapse
Affiliation(s)
- Shaquia L. Idlett-Ali
- Department of Neurosurgery, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
- *Correspondence: Shaquia L. Idlett-Ali,
| | - Claudia A. Salazar
- Department of Neurosurgery, Medical University of South Carolina, Charleston, SC, United States
| | - Marcus S. Bell
- Department of Neurosurgery, Medical University of South Carolina, Charleston, SC, United States
| | - E. Baron Short
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, United States
| | - Nathan C. Rowland
- Department of Neurosurgery, Medical University of South Carolina, Charleston, SC, United States
| |
Collapse
|
2
|
Kochanski RB, Slavin KV. The future perspectives of psychiatric neurosurgery. PROGRESS IN BRAIN RESEARCH 2022; 270:211-228. [PMID: 35396029 DOI: 10.1016/bs.pbr.2022.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The future of psychiatric neurosurgery can be viewed from two separate perspectives: the immediate future and the distant future. Both show promise, but the treatment strategy for mental diseases and the technology utilized during these separate periods will likely differ dramatically. It can be expected that the initial advancements will be built upon progress of neuroimaging and stereotactic targeting while surgical technology becomes adapted to patient-specific symptomatology and structural/functional imaging parameters. This individualized approach has already begun to show significant promise when applied to deep brain stimulation for treatment-resistant depression and obsessive-compulsive disorder. If effectiveness of these strategies is confirmed by well designed, double-blind, placebo-controlled clinical studies, further technological advances will continue into the distant future, and will likely involve precise neuromodulation at the cellular level, perhaps using wireless technology with or without closed-loop design. This approach, being theoretically less invasive and carrying less risk, may ultimately propel psychiatric neurosurgery to the forefront in the treatment algorithm of mental illness. Despite prominent development of non-invasive therapeutic options, such as stereotactic radiosurgery or transcranial magnetic resonance-guided focused ultrasound, chances are there will still be a need in surgical management of patients with most intractable psychiatric conditions.
Collapse
Affiliation(s)
- Ryan B Kochanski
- Neurosurgery, Methodist Healthcare System, San Antonio, TX, United States
| | - Konstantin V Slavin
- Department of Neurosurgery, University of Illinois at Chicago, Chicago, IL, United States; Neurology Service, Jesse Brown Veterans Administration Medical Center, Chicago, IL, United States.
| |
Collapse
|
3
|
Abstract
For many decades, psychiatric treatment has been primarily guided by two major paradigms of psychopathology: a neurochemical paradigm leading to the development of medications and a psychological paradigm resulting in the development of psychotherapies. A third paradigm positing that psychiatric dysfunction results from abnormal communication within a network of brain regions that regulate mood, thought, and behavior has gained increased attention over the past several years and underlies the development of multiple neuromodulation and neurostimulation therapies. This neural circuit paradigm is not new. In the late 19th and early 20th centuries, it was a common way of understanding psychiatric illness and led to several of our earliest somatic therapies. However, with the rise of effective medications and evidence-based psychotherapies, this paradigm went mostly dormant. Its recent reemergence resulted from a growing recognition that medications and psychotherapy leave many patients inadequately treated, along with technological advances that have revolutionized our ability to understand and modulate the neural circuitry involved in psychiatric disorders. In this overview, the authors review the history and current state of neuromodulation for psychiatric illness and specifically focus on these approaches as a treatment for depression, as this has been the primary indication for these interventions over time.
Collapse
Affiliation(s)
- Susan K Conroy
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis (Conroy);National Center for PTSD, Executive Division, White River Junction VA Medical Center, White River Junction, Vt. (Holtzheimer);Departments of Psychiatry and Surgery, Geisel School of Medicine at Dartmouth, Dartmouth Hitchcock Medical Center, Lebanon, N.H. (Holtzheimer)
| | - Paul E Holtzheimer
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis (Conroy);National Center for PTSD, Executive Division, White River Junction VA Medical Center, White River Junction, Vt. (Holtzheimer);Departments of Psychiatry and Surgery, Geisel School of Medicine at Dartmouth, Dartmouth Hitchcock Medical Center, Lebanon, N.H. (Holtzheimer)
| |
Collapse
|
4
|
Dandekar MP, Diaz AP, Rahman Z, Silva RH, Nahas Z, Aaronson S, Selvaraj S, Fenoy AJ, Sanches M, Soares JC, Riva-Posse P, Quevedo J. A narrative review on invasive brain stimulation for treatment-resistant depression. ACTA ACUST UNITED AC 2021; 44:317-330. [PMID: 34468549 PMCID: PMC9169472 DOI: 10.1590/1516-4446-2021-1874] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 04/22/2021] [Indexed: 12/20/2022]
Abstract
While most patients with depression respond to pharmacotherapy and psychotherapy, about one-third will present treatment resistance to these interventions. For patients with treatment-resistant depression (TRD), invasive neurostimulation therapies such as vagus nerve stimulation, deep brain stimulation, and epidural cortical stimulation may be considered. We performed a narrative review of the published literature to identify papers discussing clinical studies with invasive neurostimulation therapies for TRD. After a database search and title and abstract screening, relevant English-language articles were analyzed. Vagus nerve stimulation, approved by the U.S. Food and Drug Administration as a TRD treatment, may take several months to show therapeutic benefits, and the average response rate varies from 15.2-83%. Deep brain stimulation studies have shown encouraging results, including rapid response rates (> 30%), despite conflicting findings from randomized controlled trials. Several brain regions, such as the subcallosal-cingulate gyrus, nucleus accumbens, ventral capsule/ventral striatum, anterior limb of the internal capsule, medial-forebrain bundle, lateral habenula, inferior-thalamic peduncle, and the bed-nucleus of the stria terminalis have been identified as key targets for TRD management. Epidural cortical stimulation, an invasive intervention with few reported cases, showed positive results (40-60% response), although more extensive trials are needed to confirm its potential in patients with TRD.
Collapse
Affiliation(s)
- Manoj P Dandekar
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
| | - Alexandre P Diaz
- Center of Excellence on Mood Disorders, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - Ziaur Rahman
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
| | - Ritele H Silva
- Laboratório de Psiquiatria Translacional, Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense (UNESC), Criciúma, SC, Brazil
| | - Ziad Nahas
- Department of Psychiatry and Behavioral Sciences, University of Minnesota, Minneapolis, MN, USA
| | - Scott Aaronson
- Clinical Research Programs, Sheppard Pratt Health System, Baltimore, MD, USA
| | - Sudhakar Selvaraj
- Center of Excellence on Mood Disorders, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - Albert J Fenoy
- Center of Excellence on Mood Disorders, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.,Deep Brain Stimulation Program, Department of Neurosurgery, McGovern Medical School, UTHealth, Houston, TX, USA
| | - Marsal Sanches
- Center of Excellence on Mood Disorders, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - Jair C Soares
- Center of Excellence on Mood Disorders, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.,Neuroscience Graduate Program, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA
| | - Patricio Riva-Posse
- Department of Psychiatry and Behavioral Sciences, Emory University, Atlanta, GA, USA
| | - Joao Quevedo
- Center of Excellence on Mood Disorders, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.,Laboratório de Psiquiatria Translacional, Programa de Pós-Graduação em Ciências da Saúde, Universidade do Extremo Sul Catarinense (UNESC), Criciúma, SC, Brazil.,Neuroscience Graduate Program, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA.,Translational Psychiatry Program, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, UTHealth, Houston, TX, USA
| |
Collapse
|
5
|
Clinical effectiveness of non-TMS neurostimulation in depression: Clinical trials from 2010 to 2020. Prog Neuropsychopharmacol Biol Psychiatry 2021; 110:110287. [PMID: 33610609 DOI: 10.1016/j.pnpbp.2021.110287] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 02/10/2021] [Accepted: 02/12/2021] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Treatment for major depressive disorder (MDD) have evolved, although there is still a strong unmet need for more effective and tolerable options. The present study summarizes and discusses recent evidence regarding the non-transcranial magnetic stimulation (non-TMS) neurostimulation treatment for MDD. METHODS The authors reviewed non-TMS neurostimulation clinical trials for MDD between 2010 and 2020. Electroconvulsive therapy was not included in this review. A systematic review was performed in MEDLINE database through PubMed, the Cochrane Collaboration's Clinical Trials Register (CENTRAL), PsycINFO and Thomson Reuters's Web of Science. RESULTS Only 20 articles met the inclusion criteria. Randomized controlled trials demonstrated efficacy of transcranial direct current stimulation (tDCS) in five of seven trials. tDCS augmented with sertraline, fluoxetine, citalopram and escitalopram was superior to placebo and to tDCS only. A comparative trial demonstrated that the duration of tDCS sessions can modulate the effectiveness of this treatment. Open trials indicated that deep brain stimulation, epidural cortical stimulation, trigeminal nerve stimulation, magnetic seizure therapy and vagus nerve stimulation may be effective in treatment-resistant depression. CONCLUSION This review confirmed the efficacy of tDCS in MDD. Despite new evidence showing effectiveness for other non-TMS neurostimulation, their effectiveness is still unclear. Non-TMS neurostimulation RCTs with large samples and head-to-head studies comparing non-TMS neurostimulation and gold standard pharmacological treatments are still lacking.
Collapse
|
6
|
Invasive cortical stimulation. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2021; 159:23-45. [PMID: 34446248 DOI: 10.1016/bs.irn.2021.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The field of neuromodulation, at its essence, aims to apply electrical stimulation to the brain to ameliorate various pathology. Many methods of applying this stimulation exist, including invasive and non-invasive means. In the realm of invasive stimulation, stimulation of the cortex remains one of the earliest techniques investigated, yet one of the most underutilized today. Evidence for the efficacy of direct invasive cortical stimulation continues to mount, especially in recent years. In this chapter we will review the evidence for the use of invasive cortical stimulation as it applies to neuropathic pain, epilepsy, psychiatric disease, movement disorders, tinnitus, and post-stroke recovery, as well explore some potential mechanisms and future directions of the technique.
Collapse
|
7
|
Deng ZD, Luber B, Balderston NL, Velez Afanador M, Noh MM, Thomas J, Altekruse WC, Exley SL, Awasthi S, Lisanby SH. Device-Based Modulation of Neurocircuits as a Therapeutic for Psychiatric Disorders. Annu Rev Pharmacol Toxicol 2020; 60:591-614. [PMID: 31914895 DOI: 10.1146/annurev-pharmtox-010919-023253] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Device-based neuromodulation of brain circuits is emerging as a promising new approach in the study and treatment of psychiatric disorders. This work presents recent advances in the development of tools for identifying neurocircuits as therapeutic targets and in tools for modulating neurocircuits. We review clinical evidence for the therapeutic efficacy of circuit modulation with a range of brain stimulation approaches, including subthreshold, subconvulsive, convulsive, and neurosurgical techniques. We further discuss strategies for enhancing the precision and efficacy of neuromodulatory techniques. Finally, we survey cutting-edge research in therapeutic circuit modulation using novel paradigms and next-generation devices.
Collapse
Affiliation(s)
- Zhi-De Deng
- Noninvasive Neuromodulation Unit, Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA; .,Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, North Carolina 27710, USA
| | - Bruce Luber
- Noninvasive Neuromodulation Unit, Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA;
| | - Nicholas L Balderston
- Section on Neurobiology of Fear and Anxiety, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Melbaliz Velez Afanador
- Noninvasive Neuromodulation Unit, Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA;
| | - Michelle M Noh
- Noninvasive Neuromodulation Unit, Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA;
| | - Jeena Thomas
- Noninvasive Neuromodulation Unit, Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA;
| | - William C Altekruse
- Noninvasive Neuromodulation Unit, Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA;
| | - Shannon L Exley
- Noninvasive Neuromodulation Unit, Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA;
| | - Shriya Awasthi
- Noninvasive Neuromodulation Unit, Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA;
| | - Sarah H Lisanby
- Noninvasive Neuromodulation Unit, Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892, USA; .,Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, North Carolina 27710, USA
| |
Collapse
|
8
|
Olsen ST, Basu I, Bilge MT, Kanabar A, Boggess MJ, Rockhill AP, Gosai AK, Hahn E, Peled N, Ennis M, Shiff I, Fairbank-Haynes K, Salvi JD, Cusin C, Deckersbach T, Williams Z, Baker JT, Dougherty DD, Widge AS. Case Report of Dual-Site Neurostimulation and Chronic Recording of Cortico-Striatal Circuitry in a Patient With Treatment Refractory Obsessive Compulsive Disorder. Front Hum Neurosci 2020; 14:569973. [PMID: 33192400 PMCID: PMC7645211 DOI: 10.3389/fnhum.2020.569973] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 09/15/2020] [Indexed: 12/11/2022] Open
Abstract
Psychiatric disorders are increasingly understood as dysfunctions of hyper- or hypoconnectivity in distributed brain circuits. A prototypical example is obsessive compulsive disorder (OCD), which has been repeatedly linked to hyper-connectivity of cortico-striatal-thalamo-cortical (CSTC) loops. Deep brain stimulation (DBS) and lesions of CSTC structures have shown promise for treating both OCD and related disorders involving over-expression of automatic/habitual behaviors. Physiologically, we propose that this CSTC hyper-connectivity may be reflected in high synchrony of neural firing between loop structures, which could be measured as coherent oscillations in the local field potential (LFP). Here we report the results from the pilot patient in an Early Feasibility study (https://clinicaltrials.gov/ct2/show/NCT03184454) in which we use the Medtronic Activa PC+ S device to simultaneously record and stimulate in the supplementary motor area (SMA) and ventral capsule/ventral striatum (VC/VS). We hypothesized that frequency-mismatched stimulation should disrupt coherence and reduce compulsive symptoms. The patient reported subjective improvement in OCD symptoms and showed evidence of improved cognitive control with the addition of cortical stimulation, but these changes were not reflected in primary rating scales specific to OCD and depression, or during blinded cortical stimulation. This subjective improvement was correlated with increased SMA and VC/VS coherence in the alpha, beta, and gamma bands, signals which persisted after correcting for stimulation artifacts. We discuss the implications of this research, and propose future directions for research in network modulation in OCD and more broadly across psychiatric disorders.
Collapse
Affiliation(s)
- Sarah T. Olsen
- Department of Psychiatry, Medical School, University of Minnesota Twin Cities, Minneapolis, MN, United States
| | - Ishita Basu
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, United States
| | - Mustafa Taha Bilge
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, United States
| | - Anish Kanabar
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, United States
| | - Matthew J. Boggess
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, United States
| | - Alexander P. Rockhill
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, United States
| | - Aishwarya K. Gosai
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, United States
| | - Emily Hahn
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, United States
| | - Noam Peled
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States
| | - Michaela Ennis
- McLean Institute for Technology in Psychiatry and Harvard Medical School, Belmont, MA, United States
| | - Ilana Shiff
- McLean Institute for Technology in Psychiatry and Harvard Medical School, Belmont, MA, United States
| | - Katherine Fairbank-Haynes
- McLean Institute for Technology in Psychiatry and Harvard Medical School, Belmont, MA, United States
| | - Joshua D. Salvi
- McLean Institute for Technology in Psychiatry and Harvard Medical School, Belmont, MA, United States
| | - Cristina Cusin
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, United States
| | - Thilo Deckersbach
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, United States
| | - Ziv Williams
- Department of Neurosurgery, Massachusetts General Hospital, Boston, MA, United States
| | - Justin T. Baker
- McLean Institute for Technology in Psychiatry and Harvard Medical School, Belmont, MA, United States
| | - Darin D. Dougherty
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, United States
| | - Alik S. Widge
- Department of Psychiatry, Medical School, University of Minnesota Twin Cities, Minneapolis, MN, United States
| |
Collapse
|
9
|
North RB, Konrad PE, Judy JW, Ries AJ, Stevenson R. Examining the Need to Standardize Implanted Stimulator Connectors: NANS Survey Results. Neuromodulation 2020; 24:1299-1306. [PMID: 32780897 DOI: 10.1111/ner.13231] [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: 05/07/2020] [Revised: 05/28/2020] [Accepted: 06/08/2020] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Connectors between implanted stimulator electrodes and pulse generators allow revisions, including battery changes or generator upgrades, to proceed without disturbing uninvolved components, such as the electrode. As new devices are introduced, however, connector incompatibility, even with updated hardware from the same manufacturer, can lead to additional procedures, expense, and morbidity. MATERIALS AND METHODS Following the example of the cardiac pacemaker/defibrillator industry, the Institute of Neuromodulation (IoN) met to explore the possibility of creating connector standards for implanted neurostimulation devices. At a subsequent meeting of the Association for the Advancement of Medical Instrumentation, which coordinates the development of such standards, industry representatives asked for data defining the need for a new standard. Accordingly, IoN prepared an online survey to be sent to the North American Neuromodulation Society mailing list regarding experience with the connectivity of spinal cord stimulation (SCS) generators and electrodes. RESULTS The 87 respondents of 9657 surveyed included 77 clinicians, who reported a total of 42,572 SCS implants and revisions. More than a quarter of revisions (2741 of 9935) required the interconnection of devices made by separate manufacturers, in most cases (n = 1528) to take advantage of a new feature (e.g., rechargeability, new waveform) or because an original component could not be replaced (n = 642). Connector adapters provided by manufacturers were used in less than half (n = 1246) of these cases. Nearly all (94%) of the clinicians agreed that standardized connectors should be developed for SCS, and 86% opined that standardized connectors should be developed for other neurostimulation therapies. CONCLUSION Those who responded to our survey support the development of standard connectors for implanted stimulators, with voluntary compliance by manufacturers, to mitigate the need for adapters and facilitate interchanging components when appropriate. Other advantages to patients and manufacturers might accrue from the adoption of standards, as technology evolves and diversifies.
Collapse
Affiliation(s)
- Richard B North
- The Institute of Neuromodulation, Chicago, IL, USA.,The Neuromodulation Foundation, Baltimore, MD, USA.,The Johns Hopkins University School of Medicine (ret.), Baltimore, MD, USA
| | - Peter E Konrad
- The Institute of Neuromodulation, Chicago, IL, USA.,Vanderbilt University, Nashville, TN, USA.,North American Neuromodulation Society, Chicago, IL, USA
| | - Jack W Judy
- Nanoscience Institute for Medical and Engineering Technology, University of Florida, Gainesville, FL, USA
| | | | | |
Collapse
|
10
|
Coenen VA, Schlaepfer TE, Sajonz B, Döbrössy M, Kaller CP, Urbach H, Reisert M. Tractographic description of major subcortical projection pathways passing the anterior limb of the internal capsule. Corticopetal organization of networks relevant for psychiatric disorders. Neuroimage Clin 2020; 25:102165. [PMID: 31954987 PMCID: PMC6965747 DOI: 10.1016/j.nicl.2020.102165] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 12/06/2019] [Accepted: 01/09/2020] [Indexed: 12/25/2022]
Abstract
BACKGROUND Major depression (MD) and obsessive-compulsive disorder (OCD) are psychiatric diseases with a huge impact on individual well-being. Despite optimal treatment regiments a subgroup of patients remains treatment resistant and stereotactic surgery (stereotactic lesion surgery, SLS or Deep Brain Stimulation, DBS) might be an option. Recent research has described four networks related to MD and OCD (affect, reward, cognitive control, default network) but only on a cortical and the adjacent sub-cortical level. Despite the enormous impact of comparative neuroanatomy, animal science and stereotactic approaches a holistic theory of subcortical and cortical network interactions is elusive. Because of the dominant hierarchical rank of the neocortex, corticofugal approaches have been used to identify connections in subcortical anatomy without anatomical priors and in part confusing results. We here propose a different corticopetal approach by identifying subcortical networks and search for neocortical convergences thereby following the principle of phylogenetic and ontogenetic network development. MATERIAL AND METHODS This work used a diffusion tensor imaging data from a normative cohort (Human Connectome Project, HCP; n = 200) to describe eight subcortical fiber projection pathways (PPs) from subthalamic nucleus (STN), substantia nigra (SNR), red nucleus (RN), ventral tegmental area (VTA), ventrolateral thalamus (VLT) and mediodorsal thalamus (MDT) in a normative space (MNI). Subcortical and cortical convergences were described including an assignment of the specific pathways to MD/OCD-related networks. Volumes of activated tissue for different stereotactic stimulation sites and procedures were simulated to understand the role of the distinct networks, with respect to symptoms and treatment of OCD and MD. RESULTS The detailed course of eight subcortical PPs (stnPP, snrPP, rnPP, vlATR, vlATRc, mdATR, mdATRc, vtaPP/slMFB) were described together with their subcortical and cortical convergences. The anterior limb of the internal capsule can be subdivided with respect to network occurrences in ventral-dorsal and medio-lateral gradients. Simulation of stereotactic procedures for OCD and MD showed dominant involvement of mdATR/mdATRc (affect network) and vtaPP/slMFB (reward network). DISCUSSION Corticofugal search strategies for the evaluation of stereotactic approaches without anatomical priors often lead to confusing results which do not allow for a clear assignment of a procedure to an involved network. According to our simulation of stereotactic procedures in the treatment of OCD and MD, most of the target regions directly involve the reward (and affect) networks, while side-effects can in part be explained with a co-modulation of the control network. CONCLUSION The here proposed corticopetal approach of a hierarchical description of 8 subcortical PPs with subcortical and cortical convergences represents a new systematics of networks found in all different evolutionary and distinct parts of the human brain.
Collapse
Affiliation(s)
- Volker A Coenen
- Department of Stereotactic and Functional Neurosurgery, Freiburg University Medical Center and Medical Faculty of Freiburg University, Breisacher Strasse 64, Freiburg im Breisgau 79106, Germany; Center for Basics in Neuromodulation, Freiburg University, Germany.
| | - Thomas E Schlaepfer
- Department of Interventional Biological Psychiatry, Freiburg University Medical Center and Medical Faculty of Freiburg University, Germany
| | - Bastian Sajonz
- Department of Stereotactic and Functional Neurosurgery, Freiburg University Medical Center and Medical Faculty of Freiburg University, Breisacher Strasse 64, Freiburg im Breisgau 79106, Germany
| | - Máté Döbrössy
- Department of Stereotactic and Functional Neurosurgery, Freiburg University Medical Center and Medical Faculty of Freiburg University, Breisacher Strasse 64, Freiburg im Breisgau 79106, Germany
| | - Christoph P Kaller
- Department of Neuroradiology, Freiburg University Medical Center and Medical Faculty of Freiburg University, Germany
| | - Horst Urbach
- Department of Neuroradiology, Freiburg University Medical Center and Medical Faculty of Freiburg University, Germany
| | - Marco Reisert
- Department of Stereotactic and Functional Neurosurgery, Freiburg University Medical Center and Medical Faculty of Freiburg University, Breisacher Strasse 64, Freiburg im Breisgau 79106, Germany
| |
Collapse
|
11
|
Khatoun A, Asamoah B, Mc Laughlin M. Investigating the Feasibility of Epicranial Cortical Stimulation Using Concentric-Ring Electrodes: A Novel Minimally Invasive Neuromodulation Method. Front Neurosci 2019; 13:773. [PMID: 31396045 PMCID: PMC6667561 DOI: 10.3389/fnins.2019.00773] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 07/10/2019] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Invasive cortical stimulation (ICS) is a neuromodulation method in which electrodes are implanted on the cortex to deliver chronic stimulation. ICS has been used to treat neurological disorders such as neuropathic pain, epilepsy, movement disorders and tinnitus. Noninvasive neuromodulation methods such as transcranial magnetic stimulation and transcranial electrical stimulation (TES) show great promise in treating some neurological disorders and require no surgery. However, only acute stimulation can be delivered. Epicranial current stimulation (ECS) is a novel concept for delivering chronic neuromodulation through subcutaneous electrodes implanted on the skull. The use of concentric-ring ECS electrodes may allow spatially focused stimulation and offer a less invasive alternative to ICS. OBJECTIVES Demonstrate ECS proof-of-concept using concentric-ring electrodes in rats and then use a computational model to explore the feasibility and limitations of ECS in humans. METHODS ECS concentric-ring electrodes were implanted in 6 rats and pulsatile stimulation delivered to the motor cortex. An MRI based electro-anatomical human head model was used to explore different ECS concentric-ring electrode designs and these were compared with ICS and TES. RESULTS Concentric-ring ECS electrodes can selectively stimulate the rat motor cortex. The computational model showed that the concentric-ring ECS electrode design can be optimized to achieve focused cortical stimulation. In general, focality was less than ICS but greater than noninvasive transcranial current stimulation. CONCLUSION ECS could be a promising minimally invasive alternative to ICS. Further work in large animal models and patients is needed to demonstrate feasibility and long-term stability.
Collapse
Affiliation(s)
- Ahmad Khatoun
- Research Group Experimental Oto-Rhino-Laryngology (ExpORL), Department of Neurosciences, KU Leuven, Leuven, Belgium
- The Leuven Brain Institute, KU Leuven, Leuven, Belgium
| | - Boateng Asamoah
- Research Group Experimental Oto-Rhino-Laryngology (ExpORL), Department of Neurosciences, KU Leuven, Leuven, Belgium
- The Leuven Brain Institute, KU Leuven, Leuven, Belgium
| | - Myles Mc Laughlin
- Research Group Experimental Oto-Rhino-Laryngology (ExpORL), Department of Neurosciences, KU Leuven, Leuven, Belgium
- The Leuven Brain Institute, KU Leuven, Leuven, Belgium
| |
Collapse
|
12
|
Averna A, Guggenmos D, Pasquale V, Semprini M, Nudo R, Chiappalone M. Neuroengineering Tools For Studying The Effect Of Intracortical Microstimulation In Rodent Models. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2018; 2018:3076-3079. [PMID: 30441044 DOI: 10.1109/embc.2018.8512915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Intracortical microstimulation can be successfully used to manipulate neuronal activity and connectivity, thus representing a potentially powerful tool to steer neuroplasticity occurring after brain injury. Activity-dependent stimulation (ADS), in which the spikes recorded from a single neuron are used to trigger stimulation at another cortical location, is able to potentiate cortical connections between distant brain areas. Here, we developed an experimental procedure and a computational pipeline aimed at investigating the ability of ADS to induce changes in intra-cortical activity of healthy anesthetized rats.
Collapse
|
13
|
Abstract
Many patients with mental illness do not respond to common evidence-based treatments such as psychopharmacology and psychotherapy. We increasingly understand these illnesses as disorders of brain circuits, suggesting that otherwise treatment-refractory patients might be helped by direct intervention in those circuits. Non-invasive techniques for circuit intervention include electro-convulsive therapy (ECT) and transcranial magnetic stimulation (TMS). Circuits can also be targeted more directly and focally through neurosurgical intervention, including through vagus nerve stimulation (VNS), ablative neurosurgery (cingulotomy and capsulotomy), cortical brain stimulation (EpCS), or deep brain stimulation (DBS). Each of these approaches has evidence supporting its use in a major psychiatric disorder, although many have yet to demonstrate a strong clinical signal in a randomized controlled trial. New technologies that may aid in that demonstration include non-invasive techniques that can focus energy more precisely in the deep brain and invasive devices that respond in real time to changes in brain activity (closed-loop stimulation). In this article, we review the modalities and evidence base for these neurotherapeutics, with an emphasis on their clinical readiness and relative advantages.
Collapse
Affiliation(s)
- Darin D Dougherty
- *Harvard Medical School and Division of Neurotherapeutics, Department of Psychiatry, Massachusetts General Hospital, Boston, MA. †Harvard Medical School; Picower Institute for Learning & Memory, Massachusetts Institute of Technology; Division of Neurotherapeutics, Department of Psychiatry, Massachusetts General Hospital, Boston, MA.
| | | |
Collapse
|
14
|
Bergfeld IO, Mantione M, Figee M, Schuurman PR, Lok A, Denys D. Treatment-resistant depression and suicidality. J Affect Disord 2018; 235:362-367. [PMID: 29665520 DOI: 10.1016/j.jad.2018.04.016] [Citation(s) in RCA: 124] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 02/28/2018] [Accepted: 04/02/2018] [Indexed: 12/28/2022]
Abstract
BACKGROUND Thirty percent of patients with treatment-resistant depression (TRD) attempt suicide at least once during their lifetime. However, it is unclear what the attempted and completed suicide incidences are in TRD patients after initiating a treatment, and whether specific treatments increase or decrease these incidences. METHODS We searched PubMed systematically for studies of depressed patients who failed at least two antidepressant therapies and were followed for at least three months after initiating a treatment. We estimated attempted and completed suicide incidences using a Poisson meta-analysis. Given the lack of controlled comparisons, we used a meta-regression to estimate whether these incidences differed between treatments. RESULTS We included 30 studies investigating suicidality in 32 TRD samples, undergoing deep brain stimulation (DBS, n = 9), vagal nerve stimulation (VNS, n = 9), electroconvulsive therapy (ECT, n = 5), treatment-as-usual (n = 3), capsulotomy (n = 2), cognitive behavioral therapy (n = 2), ketamine (n = 1), and epidural cortical stimulation (n = 1). The overall incidence of completed suicides was 0.47 per 100 patient years (95% CI: 0.22-1.00), and of attempted suicides 4.66 per 100 patient years (95% CI: 3.53-6.23). No differences were found in incidences following DBS, VNS or ECT. LIMITATIONS Suicidality is poorly recorded in many studies limiting the number of studies available. CONCLUSIONS The completed and attempted suicide incidences are high (0.47 and 4.66 per 100 patient years respectively), but these incidences did not differ between three end of the line treatments (DBS, VNS or ECT). Given the high suicide risk in TRD patients, clinical trials should consider suicidality as an explicit outcome measure.
Collapse
Affiliation(s)
- Isidoor O Bergfeld
- Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands; Amsterdam Brain and Cognition, Amsterdam, The Netherlands.
| | - Mariska Mantione
- Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Martijn Figee
- Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands; Amsterdam Brain and Cognition, Amsterdam, The Netherlands; Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, USA
| | - P Richard Schuurman
- Department of Neurosurgery, Academic Medical Center, Amsterdam, The Netherlands
| | - Anja Lok
- Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands; Amsterdam Brain and Cognition, Amsterdam, The Netherlands
| | - Damiaan Denys
- Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands; Amsterdam Brain and Cognition, Amsterdam, The Netherlands; Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Amsterdam, the Netherlands
| |
Collapse
|
15
|
Dandekar MP, Fenoy AJ, Carvalho AF, Soares JC, Quevedo J. Deep brain stimulation for treatment-resistant depression: an integrative review of preclinical and clinical findings and translational implications. Mol Psychiatry 2018; 23:1094-1112. [PMID: 29483673 DOI: 10.1038/mp.2018.2] [Citation(s) in RCA: 177] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 12/05/2017] [Accepted: 12/15/2017] [Indexed: 02/07/2023]
Abstract
Although deep brain stimulation (DBS) is an established treatment choice for Parkinson's disease (PD), essential tremor and movement disorders, its effectiveness for the management of treatment-resistant depression (TRD) remains unclear. Herein, we conducted an integrative review on major neuroanatomical targets of DBS pursued for the treatment of intractable TRD. The aim of this review article is to provide a critical discussion of possible underlying mechanisms for DBS-generated antidepressant effects identified in preclinical studies and clinical trials, and to determine which brain target(s) elicited the most promising outcomes considering acute and maintenance treatment of TRD. Major electronic databases were searched to identify preclinical and clinical studies that have investigated the effects of DBS on depression-related outcomes. Overall, 92 references met inclusion criteria, and have evaluated six unique DBS targets namely the subcallosal cingulate gyrus (SCG), nucleus accumbens (NAc), ventral capsule/ventral striatum or anterior limb of internal capsule (ALIC), medial forebrain bundle (MFB), lateral habenula (LHb) and inferior thalamic peduncle for the treatment of unrelenting TRD. Electrical stimulation of these pertinent brain regions displayed differential effects on mood transition in patients with TRD. In addition, 47 unique references provided preclinical evidence for putative neurobiological mechanisms underlying antidepressant effects of DBS applied to the ventromedial prefrontal cortex, NAc, MFB, LHb and subthalamic nucleus. Preclinical studies suggest that stimulation parameters and neuroanatomical locations could influence DBS-related antidepressant effects, and also pointed that modulatory effects on monoamine neurotransmitters in target regions or interconnected brain networks following DBS could have a role in the antidepressant effects of DBS. Among several neuromodulatory targets that have been investigated, DBS in the neuroanatomical framework of the SCG, ALIC and MFB yielded more consistent antidepressant response rates in samples with TRD. Nevertheless, more well-designed randomized double-blind, controlled trials are warranted to further assess the efficacy, safety and tolerability of these more promising DBS targets for the management of TRD as therapeutic effects have been inconsistent across some controlled studies.
Collapse
Affiliation(s)
- M P Dandekar
- Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - A J Fenoy
- Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - A F Carvalho
- Department of Clinical Medicine and Translational Psychiatry Research Group, Faculty of Medicine, Federal University of Ceará, Fortaleza, Brazil
| | - J C Soares
- Center of Excellence on Mood Disorders, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - J Quevedo
- Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.,Center of Excellence on Mood Disorders, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA.,Neuroscience Graduate Program, The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX, USA.,Laboratory of Neurosciences, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciúma, Brazil
| |
Collapse
|
16
|
Gilligan J, Rasouli JJ, Kopell BH. Cortical Stimulation for Depression. Neuromodulation 2018. [DOI: 10.1016/b978-0-12-805353-9.00092-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
17
|
Williams NR, Bentzley BS, Hopkins T, Pannu J, Sahlem GL, Takacs I, George MS, Nahas Z, Short EB. Optimization of epidural cortical stimulation for treatment-resistant depression. Brain Stimul 2018; 11:239-240. [PMID: 28918944 DOI: 10.1016/j.brs.2017.09.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 08/29/2017] [Accepted: 09/01/2017] [Indexed: 12/28/2022] Open
Affiliation(s)
- Nolan R Williams
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, USA.
| | - Brandon S Bentzley
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, USA
| | - Thomas Hopkins
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, USA
| | - Jaspreet Pannu
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, USA
| | - Gregory L Sahlem
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, USA
| | - Istvan Takacs
- Department of Neurosurgery, Medical University of South Carolina, Charleston, USA
| | - Mark S George
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, USA; Ralph H. Johnson VA Medical Center, Charleston, SC, United States
| | - Ziad Nahas
- Department of Psychiatry, American University of Beirut, Beirut, Lebanon
| | - Edward Baron Short
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, USA
| |
Collapse
|
18
|
Holtzheimer PE, Husain MM, Lisanby SH, Taylor SF, Whitworth LA, McClintock S, Slavin KV, Berman J, McKhann GM, Patil PG, Rittberg BR, Abosch A, Pandurangi AK, Holloway KL, Lam RW, Honey CR, Neimat JS, Henderson JM, DeBattista C, Rothschild AJ, Pilitsis JG, Espinoza RT, Petrides G, Mogilner AY, Matthews K, Peichel D, Gross RE, Hamani C, Lozano AM, Mayberg HS. Subcallosal cingulate deep brain stimulation for treatment-resistant depression: a multisite, randomised, sham-controlled trial. Lancet Psychiatry 2017; 4:839-849. [PMID: 28988904 DOI: 10.1016/s2215-0366(17)30371-1] [Citation(s) in RCA: 308] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 08/05/2017] [Accepted: 08/21/2017] [Indexed: 01/08/2023]
Abstract
BACKGROUND Deep brain stimulation (DBS) of the subcallosal cingulate white matter has shown promise as an intervention for patients with chronic, unremitting depression. To test the safety and efficacy of DBS for treatment-resistant depression, a prospective, randomised, sham-controlled trial was conducted. METHODS Participants with treatment-resistant depression were implanted with a DBS system targeting bilateral subcallosal cingulate white matter and randomised to 6 months of active or sham DBS, followed by 6 months of open-label subcallosal cingulate DBS. Randomisation was computer generated with a block size of three at each site before the site started the study. The primary outcome was frequency of response (defined as a 40% or greater reduction in depression severity from baseline) averaged over months 4-6 of the double-blind phase. A futility analysis was performed when approximately half of the proposed sample received DBS implantation and completed the double-blind phase. At the conclusion of the 12-month study, a subset of patients were followed up for up to 24 months. The study is registered at ClinicalTrials.gov, number NCT00617162. FINDINGS Before the futility analysis, 90 participants were randomly assigned to active (n=60) or sham (n=30) stimulation between April 10, 2008, and Nov 21, 2012. Both groups showed improvement, but there was no statistically significant difference in response during the double-blind, sham-controlled phase (12 [20%] patients in the stimulation group vs five [17%] patients in the control group). 28 patients experienced 40 serious adverse events; eight of these (in seven patients) were deemed to be related to the study device or surgery. INTERPRETATION This study confirmed the safety and feasibility of subcallosal cingulate DBS as a treatment for treatment-resistant depression but did not show statistically significant antidepressant efficacy in a 6-month double-blind, sham-controlled trial. Future studies are needed to investigate factors such as clinical features or electrode placement that might improve efficacy. FUNDING Abbott (previously St Jude Medical).
Collapse
Affiliation(s)
- Paul E Holtzheimer
- Department of Psychiatry and Department of Surgery, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA.
| | - Mustafa M Husain
- Department of Psychiatry, Neurology and Medicine, University of Texas Southwestern Medical Center at Dallas, Dallas, TX, USA; Department of Psychiatry and Behavioral Science, Duke University School of Medicine, Durham, NC, USA
| | | | - Stephan F Taylor
- Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Louis A Whitworth
- Neurological Surgery, Radiation Oncology, Department of Neurological Surgery, University of Texas Southwestern Medical Center at Dallas, Dallas, TX, USA
| | - Shawn McClintock
- Department of Psychiatry, University of Texas Southwestern Medical Center at Dallas, Dallas, TX, USA; Department of Psychiatry and Behavioral Science, Duke University School of Medicine, Durham, NC, USA
| | - Konstantin V Slavin
- Department of Neurosurgery, University of Illinois at Chicago, Chicago, IL, USA
| | - Joshua Berman
- Department of Psychiatry, Division of Experimental Therapeutics, Columbia University College of Physicians & Surgeons, New York, NY, USA
| | - Guy M McKhann
- Department of Neurosurgery, Columbia University Medical Center, New York Presbyterian Hospital, New York, NY, USA
| | - Parag G Patil
- Department of Neurosurgery, Neurology, Anesthesiology and Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - Barry R Rittberg
- Department of Psychiatry, University of Minnesota, Minneapolis, MN, USA
| | - Aviva Abosch
- Department of Neurosurgery and Department of Neurology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Ananda K Pandurangi
- Department of Psychiatry, Virginia Commonwealth University, Richmond, VA, USA
| | - Kathryn L Holloway
- Department of Neurosurgery, Virginia Commonwealth University, Richmond, VA, USA
| | - Raymond W Lam
- Department of Psychiatry, University of British Columbia, Vancouver, BC, Canada
| | - Christopher R Honey
- Department of Surgery (Neurosurgery), University of British Columbia, Vancouver, BC, Canada
| | - Joseph S Neimat
- Department of Neurological Surgery, University of Louisville, Louisville, KY, USA
| | - Jaimie M Henderson
- Stanford Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Charles DeBattista
- Department of Psychiatry, Stanford University School of Medicine, Stanford, CA, USA
| | - Anthony J Rothschild
- Department of Psychiatry, University of Massachusetts Medical School and UMass Memorial HealthCare, Worcester, MA, USA
| | - Julie G Pilitsis
- Department of Neuroscience and Experimental Therapeutics and the Department of Neurosurgery, Albany Medical College, Albany, NY, USA
| | - Randall T Espinoza
- Department of Psychiatry and Biobehavioral Sciences, Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Georgios Petrides
- The Zucker Hillside Hospital, Northwell Health System, Glen Oaks, NY, USA; Hofstra Northwell School of Medicine, Hempstead, NY, USA
| | - Alon Y Mogilner
- Department of Neurosurgery, Center for Neuromodulation, NYU Langone Medical Center, New York, NY, USA
| | - Keith Matthews
- Division of Neuroscience, School of Medicine, University of Dundee, Dundee, UK; Advanced Interventions Service, NHS Tayside, Ninewells Hospital and Medical School, Dundee, UK
| | - DeLea Peichel
- Clinical Studies Department, Abbott (previously St Jude Medical), Plano, TX, USA
| | - Robert E Gross
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, GA, USA
| | - Clement Hamani
- Behavioural Neurobiology Laboratory, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health and Division of Neurosurgery, Toronto Western Hospital, Toronto, ON, Canada
| | - Andres M Lozano
- Department of Neurosurgery and Neuroscience, Toronto Western Hospital, Toronto, ON, Canada
| | - Helen S Mayberg
- Department of Psychiatry and Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| |
Collapse
|
19
|
Abstract
Ambulatory deep brain stimulation (DBS) became possible in the late 1980s and was initially used to treat people with movement disorders. Trials of DBS in people with treatment-resistant psychiatric disorder began in the late 1990s, initially focusing on obsessive-compulsive disorder, major depressive disorder and Tourette syndrome. Despite methodological issues, including small participant numbers and lack of consensus over brain targets, DBS is now being trialled in a wide range of psychiatric conditions. There has also been more modest increase in ablative procedures. This paper reviews these developments in the light of contemporary brain science, considers future directions and discusses why the approach has not been adopted more widely within psychiatry.
Collapse
|
20
|
Stip E, Lespérance P, Farmer O, Fournier-Gosselin MP. First clinical use of epidural stimulation in catatonia. Brain Stimul 2017; 10:859-861. [DOI: 10.1016/j.brs.2017.03.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Revised: 03/10/2017] [Accepted: 03/15/2017] [Indexed: 10/19/2022] Open
|
21
|
Fins JJ, Kubu CS, Mayberg HS, Merkel R, Nuttin B, Schlaepfer TE. Being open minded about neuromodulation trials: Finding success in our “failures”. Brain Stimul 2017; 10:181-186. [DOI: 10.1016/j.brs.2016.12.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 11/09/2016] [Accepted: 12/20/2016] [Indexed: 11/28/2022] Open
|
22
|
Neumaier F, Paterno M, Alpdogan S, Tevoufouet EE, Schneider T, Hescheler J, Albanna W. Surgical Approaches in Psychiatry: A Survey of the World Literature on Psychosurgery. World Neurosurg 2017; 97:603-634.e8. [DOI: 10.1016/j.wneu.2016.10.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 09/29/2016] [Accepted: 10/01/2016] [Indexed: 12/11/2022]
|
23
|
Five-Year Follow-Up of Bilateral Epidural Prefrontal Cortical Stimulation for Treatment-Resistant Depression. Brain Stimul 2016; 9:897-904. [PMID: 27443912 DOI: 10.1016/j.brs.2016.06.054] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 06/22/2016] [Accepted: 06/25/2016] [Indexed: 12/23/2022] Open
|
24
|
Pathak Y, Salami O, Baillet S, Li Z, Butson CR. Longitudinal Changes in Depressive Circuitry in Response to Neuromodulation Therapy. Front Neural Circuits 2016; 10:50. [PMID: 27524960 PMCID: PMC4965463 DOI: 10.3389/fncir.2016.00050] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 06/29/2016] [Indexed: 12/22/2022] Open
Abstract
Background: Major depressive disorder (MDD) is a public health problem worldwide. There is increasing interest in using non-invasive therapies such as repetitive transcranial magnetic stimulation (rTMS) to treat MDD. However, the changes induced by rTMS on neural circuits remain poorly characterized. The present study aims to test whether the brain regions previously targeted by deep brain stimulation (DBS) in the treatment of MDD respond to rTMS, and whether functional connectivity (FC) measures can predict clinical response. Methods: rTMS (20 sessions) was administered to five MDD patients at the left-dorsolateral prefrontal cortex (L-DLPFC) over 4 weeks. Magnetoencephalography (MEG) recordings and Montgomery-Asberg depression rating scale (MADRS) assessments were acquired before, during and after treatment. Our primary measures, obtained with MEG source imaging, were changes in power spectral density (PSD) and changes in FC as measured using coherence. Results: Of the five patients, four met the clinical response criterion (40% or greater decrease in MADRS) after 4 weeks of treatment. An increase in gamma power at the L-DLPFC was correlated with improvement in symptoms. We also found that increases in delta band connectivity between L-DLPFC/amygdala and L-DLPFC/pregenual anterior cingulate cortex (pACC), and decreases in gamma band connectivity between L-DLPFC/subgenual anterior cingulate cortex (sACC), were correlated with improvements in depressive symptoms. Conclusions: Our results suggest that non-invasive intervention techniques, such as rTMS, modulate the ongoing activity of depressive circuits targeted for DBS, and that MEG can capture these changes. Gamma oscillations may originate from GABA-mediated inhibition, which increases synchronization of large neuronal populations, possibly leading to increased long-range FC. We postulate that responses to rTMS could provide valuable insights into early evaluation of patient candidates for DBS surgery.
Collapse
Affiliation(s)
- Yagna Pathak
- Department of Biomedical Engineering, Marquette University Milwaukee, WI, USA
| | - Oludamilola Salami
- Department of Psychiatry, Medical College of Wisconsin Milwaukee, WI, USA
| | - Sylvain Baillet
- McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University Montreal, QC, Canada
| | - Zhimin Li
- Department of Neurology, Medical College of Wisconsin Milwaukee, WI, USA
| | - Christopher R Butson
- Department of Biomedical Engineering, Marquette UniversityMilwaukee, WI, USA; Department of Psychiatry, Medical College of WisconsinMilwaukee, WI, USA; Department of Neurology, Medical College of WisconsinMilwaukee, WI, USA; Department of Bioengineering, Scientific Computing and Imaging (SCI) Institute, University of UtahSalt Lake City, UT, USA
| |
Collapse
|
25
|
Rasche D, Tronnier VM. Clinical Significance of Invasive Motor Cortex Stimulation for Trigeminal Facial Neuropathic Pain Syndromes. Neurosurgery 2016; 79:655-666. [DOI: 10.1227/neu.0000000000001353] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Abstract
BACKGROUND:
Invasive neuromodulation of the cortical surface for various chronic pain syndromes has been performed for >20 years. The significance of motor cortex stimulation (MCS) in chronic trigeminal neuropathic pain (TNP) syndromes remains unclear. Different techniques are performed worldwide in regard to operative procedure, stimulation parameters, test trials, and implanted materials.
OBJECTIVE:
To present the clinical experiences of a single center with MCS, surgical approach, complications, and follow-up as a prospective, noncontrolled clinical trial.
METHODS:
The implantation of epidural leads over the motor cortex was performed via a burr hole technique with neuronavigation and intraoperative neurostimulation. Special focus was placed on a standardized test trial with an external stimulation device and the implementation of a double-blinded or placebo test phase to identify false-positive responders.
RESULTS:
A total of 36 patients with TNP were operated on, and MCS was performed. In 26 of the 36 patients (72%), a significant pain reduction from a mean of 8.11 to 4.58 (on the visual analog scale) during the test trial was achieved (P <.05). Six patients were identified as false-positive responders (17%). At the last available follow-up of 26 patients (mean, 5.6 years), active MCS led to a significant pain reduction compared with the preoperative pain ratings (mean visual analog scale score, 5.01; P <.05).
CONCLUSION:
MCS is an additional therapeutic option for patients with refractory chronic TNP, and significant long-term pain suppression can be achieved. Placebo or double-blinded testing is mandatory.
Collapse
Affiliation(s)
- Dirk Rasche
- Department of Neurosurgery, University Hospital of Schleswig-Holstein, University of Lübeck, Lübeck, Germany
| | - Volker M. Tronnier
- Department of Neurosurgery, University Hospital of Schleswig-Holstein, University of Lübeck, Lübeck, Germany
| |
Collapse
|
26
|
Matias CM, Silva D, Machado AG, Cooper SE. “Rescue” of bilateral subthalamic stimulation by bilateral pallidal stimulation: case report. J Neurosurg 2016; 124:417-21. [DOI: 10.3171/2015.1.jns141604] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Deep brain stimulation (DBS) of the subthalamic nucleus (STN) orglobus pallidus pars interna (GPi) is well established as a treatment for advanced Parkinson’s disease. In general, one of the 2 targets is chosen based on the clinical features of each patient. Stimulation of both targets could be viewed as redundant, given that the 2 targets are directly connected. However, it is possible that each target has different mechanisms, with clinical effects mediated by orthodromic or antidromic stimulation.
The authors report the case of a patient with severe Parkinson’s disease who had previously undergone bilateral subthalamic stimulation with excellent benefits. However, he presented with significant worsening associated with disease progression and pharmacological treatment, and then underwent bilateral GPi DBS. Follow-up assessment was conducted clinically as well as through blinded ratings of video recordings.
Pallidal DBS may be a safe and useful strategy to manage dystonic features and behavioral complications of subthalamic stimulation and pharmacological management. While combined stimulation was quite successful in the reported patient, further studies with larger samples and longer follow-up periods will be necessary before recommending the addition of pallidal DBS as a routine strategy for patients previously implanted with STN DBS.
Collapse
Affiliation(s)
- Caio M. Matias
- 1Center for Neurological Restoration, Cleveland Clinic Neurological Institute, Cleveland, Ohio; and
- 2Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Danilo Silva
- 1Center for Neurological Restoration, Cleveland Clinic Neurological Institute, Cleveland, Ohio; and
| | - Andre G. Machado
- 1Center for Neurological Restoration, Cleveland Clinic Neurological Institute, Cleveland, Ohio; and
| | - Scott E. Cooper
- 1Center for Neurological Restoration, Cleveland Clinic Neurological Institute, Cleveland, Ohio; and
| |
Collapse
|
27
|
Dougherty DD, Rezai AR, Carpenter LL, Howland RH, Bhati MT, O'Reardon JP, Eskandar EN, Baltuch GH, Machado AD, Kondziolka D, Cusin C, Evans KC, Price LH, Jacobs K, Pandya M, Denko T, Tyrka AR, Brelje T, Deckersbach T, Kubu C, Malone DA. A Randomized Sham-Controlled Trial of Deep Brain Stimulation of the Ventral Capsule/Ventral Striatum for Chronic Treatment-Resistant Depression. Biol Psychiatry 2015; 78:240-8. [PMID: 25726497 DOI: 10.1016/j.biopsych.2014.11.023] [Citation(s) in RCA: 311] [Impact Index Per Article: 34.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 10/23/2014] [Accepted: 11/04/2014] [Indexed: 12/28/2022]
Abstract
BACKGROUND Multiple open-label trials of deep brain stimulation (DBS) for treatment-resistant depression (TRD), including those targeting the ventral capsule/ventral striatum target, have shown encouraging response rates. However, no randomized controlled trials of DBS for TRD have been published. METHODS Thirty patients with TRD participated in a sham-controlled trial of DBS at the ventral capsule/ventral striatum target for TRD. Patients were randomized to active versus sham DBS treatment in a blinded fashion for 16 weeks, followed by an open-label continuation phase. The primary outcome measure was response, defined as a 50% or greater improvement on the Montgomery-Åsberg Depression Rating Scale from baseline. RESULTS There was no significant difference in response rates between the active (3 of 15 subjects; 20%) and control (2 of 14 subjects; 14.3%) treatment arms and no significant difference between change in Montgomery-Åsberg Depression Rating Scale scores as a continuous measure upon completion of the 16-week controlled phase of the trial. The response rates at 12, 18, and 24 months during the open-label continuation phase were 20%, 26.7%, and 23.3%, respectively. CONCLUSION The results of this first randomized controlled study of DBS for the treatment of TRD did not demonstrate a significant difference in response rates between the active and control groups at the end of the 16-week controlled phase. However, a range of 20% to 26.7% of patients did achieve response at any time during the open-label continuation phase. Future studies, perhaps utilizing alternative study designs and stimulation parameters, are needed.
Collapse
Affiliation(s)
- Darin D Dougherty
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts.
| | - Ali R Rezai
- Department of Psychiatry and Psychology, Cleveland Clinic, Cleveland, Ohio
| | - Linda L Carpenter
- Butler Hospital, Alpert Medical School of Brown University, Providence, Rhode Island
| | - Robert H Howland
- Department of Psychiatry, Western Psychiatric Institute and Clinic, University of Pittsburgh Medical Center, Pittsburgh
| | - Mahendra T Bhati
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - John P O'Reardon
- Department of Psychiatry, University of Medicine and Dentistry of New Jersey School of Osteopathic Medicine, Stratford, New Jersey
| | - Emad N Eskandar
- Department of Neurosurgery, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Gordon H Baltuch
- Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Andre D Machado
- Center for Neurological Restoration, Cleveland Clinic, Cleveland, Ohio
| | - Douglas Kondziolka
- Department of Neurosurgery, New York University Langone Medical Center, New York University, New York, New York
| | - Cristina Cusin
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Karleyton C Evans
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Lawrence H Price
- Butler Hospital, Alpert Medical School of Brown University, Providence, Rhode Island
| | - Karen Jacobs
- Department of Psychiatry and Psychology, Cleveland Clinic, Cleveland, Ohio
| | - Mayur Pandya
- Department of Psychiatry and Psychology, Cleveland Clinic, Cleveland, Ohio
| | - Timothey Denko
- Department of Psychiatry, Western Psychiatric Institute and Clinic, University of Pittsburgh Medical Center, Pittsburgh
| | - Audrey R Tyrka
- Butler Hospital, Alpert Medical School of Brown University, Providence, Rhode Island
| | | | - Thilo Deckersbach
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Cynthia Kubu
- Department of Psychiatry and Psychology, Cleveland Clinic, Cleveland, Ohio
| | - Donald A Malone
- Department of Psychiatry and Psychology, Cleveland Clinic, Cleveland, Ohio
| |
Collapse
|
28
|
Smart OL, Tiruvadi VR, Mayberg HS. Multimodal approaches to define network oscillations in depression. Biol Psychiatry 2015; 77:1061-70. [PMID: 25681871 PMCID: PMC5826645 DOI: 10.1016/j.biopsych.2015.01.002] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 12/18/2014] [Accepted: 01/12/2015] [Indexed: 01/26/2023]
Abstract
The renaissance in the use of encephalography-based research methods to probe the pathophysiology of neuropsychiatric disorders is well afoot and continues to advance. Building on the platform of neuroimaging evidence on brain circuit models, magnetoencephalography, scalp electroencephalography, and even invasive electroencephalography are now being used to characterize brain network dysfunctions that underlie major depressive disorder using brain oscillation measurements and associated treatment responses. Such multiple encephalography modalities provide avenues to study pathologic network dynamics with high temporal resolution and over long time courses, opportunities to complement neuroimaging methods and findings, and new approaches to identify quantitative biomarkers that indicate critical targets for brain therapy. Such goals have been facilitated by the ongoing testing of novel invasive neuromodulation therapies, notably, deep brain stimulation, where clinically relevant treatment effects can be monitored at multiple brain sites in a time-locked causal manner. We review key brain rhythms identified in major depressive disorder as foundation for development of putative biomarkers for objectively evaluating neuromodulation success and for guiding deep brain stimulation or other target-based neuromodulation strategies for treatment-resistant depression patients.
Collapse
Affiliation(s)
- Otis Lkuwamy Smart
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, Georgia
| | - Vineet Ravi Tiruvadi
- Department of Biomedical Engineering, Georgia Institute of Technology, Emory University School of Medicine, Atlanta, Georgia
| | - Helen S Mayberg
- Departments of Psychiatry, Neurology, and Radiology, Emory University School of Medicine, Atlanta, Georgia..
| |
Collapse
|
29
|
Nahas Z. Epidural Cortical Stimulation. Brain Stimul 2015. [DOI: 10.1002/9781118568323.ch14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
|
30
|
Williams NR, Taylor JJ, Lamb K, Hanlon CA, Short EB, George MS. Role of functional imaging in the development and refinement of invasive neuromodulation for psychiatric disorders. World J Radiol 2014; 6:756-778. [PMID: 25349661 PMCID: PMC4209423 DOI: 10.4329/wjr.v6.i10.756] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 05/17/2014] [Accepted: 08/31/2014] [Indexed: 02/07/2023] Open
Abstract
Deep brain stimulation (DBS) is emerging as a powerful tool for the alleviation of targeted symptoms in treatment-resistant neuropsychiatric disorders. Despite the expanding use of neuropsychiatric DBS, the mechanisms responsible for its effects are only starting to be elucidated. Several modalities such as quantitative electroencephalography as well a intraoperative recordings have been utilized to attempt to understand the underpinnings of this new treatment modality, but functional imaging appears to offer several unique advantages. Functional imaging techniques like positron emission tomography, single photon emission computed tomography and functional magnetic resonance imaging have been used to examine the effects of focal DBS on activity in a distributed neural network. These investigations are critical for advancing the field of invasive neuromodulation in a safe and effective manner, particularly in terms of defining the neuroanatomical targets and refining the stimulation protocols. The purpose of this review is to summarize the current functional neuroimaging findings from neuropsychiatric DBS implantation for three disorders: treatment-resistant depression, obsessive-compulsive disorder, and Tourette syndrome. All of the major targets will be discussed (Nucleus accumbens, anterior limb of internal capsule, subcallosal cingulate, Subthalamic nucleus, Centromedial nucleus of the thalamus-Parafasicular complex, frontal pole, and dorsolateral prefrontal cortex). We will also address some apparent inconsistencies within this literature, and suggest potential future directions for this promising area.
Collapse
|
31
|
Resting-state networks link invasive and noninvasive brain stimulation across diverse psychiatric and neurological diseases. Proc Natl Acad Sci U S A 2014; 111:E4367-75. [PMID: 25267639 DOI: 10.1073/pnas.1405003111] [Citation(s) in RCA: 392] [Impact Index Per Article: 39.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Brain stimulation, a therapy increasingly used for neurological and psychiatric disease, traditionally is divided into invasive approaches, such as deep brain stimulation (DBS), and noninvasive approaches, such as transcranial magnetic stimulation. The relationship between these approaches is unknown, therapeutic mechanisms remain unclear, and the ideal stimulation site for a given technique is often ambiguous, limiting optimization of the stimulation and its application in further disorders. In this article, we identify diseases treated with both types of stimulation, list the stimulation sites thought to be most effective in each disease, and test the hypothesis that these sites are different nodes within the same brain network as defined by resting-state functional-connectivity MRI. Sites where DBS was effective were functionally connected to sites where noninvasive brain stimulation was effective across diseases including depression, Parkinson's disease, obsessive-compulsive disorder, essential tremor, addiction, pain, minimally conscious states, and Alzheimer's disease. A lack of functional connectivity identified sites where stimulation was ineffective, and the sign of the correlation related to whether excitatory or inhibitory noninvasive stimulation was found clinically effective. These results suggest that resting-state functional connectivity may be useful for translating therapy between stimulation modalities, optimizing treatment, and identifying new stimulation targets. More broadly, this work supports a network perspective toward understanding and treating neuropsychiatric disease, highlighting the therapeutic potential of targeted brain network modulation.
Collapse
|
32
|
Morishita T, Fayad SM, Higuchi MA, Nestor KA, Foote KD. Deep brain stimulation for treatment-resistant depression: systematic review of clinical outcomes. Neurotherapeutics 2014; 11:475-84. [PMID: 24867326 PMCID: PMC4121451 DOI: 10.1007/s13311-014-0282-1] [Citation(s) in RCA: 132] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Major depressive disorder (MDD) is a widespread, severe, debilitating disorder that markedly diminishes quality of life. Medication is commonly effective, but 20-30 % of patients are refractory to medical therapy. The surgical treatment of psychiatric disorders has a negative stigma associated with it owing to historical abuses. Various ablative surgeries for MDD have been attempted with marginal success, but these studies lacked standardized outcome measures. The recent development of neuromodulation therapy, especially deep brain stimulation (DBS), has enabled controlled studies with sham stimulation and presents a potential therapeutic option that is both reversible and adjustable. We performed a systematic review of the literature pertaining to DBS for treatment-resistant depression to evaluate the safety and efficacy of this procedure. We included only studies using validated outcome measures. Our review identified 22 clinical research papers with 5 unique DBS approaches using different targets, including nucleus accumbens, ventral striatum/ventral capsule, subgenual cingulate cortex, lateral habenula, inferior thalamic nucleus, and medial forebrain bundle. Among the 22 published studies, only 3 were controlled trials, and 2, as yet unpublished, multicenter, randomized, controlled trials evaluating the efficacy of subgenual cingulate cortex and ventral striatum/ventral capsule DBS were recently discontinued owing to inefficacy based on futility analyses. Overall, the published response rate to DBS therapy, defined as the percentage of patients with > 50 % improvement on the Hamilton Depression Rating Scale, is reported to be 40-70 %, and outcomes were comparable across studies. We conclude that DBS for MDD shows promise, but remains experimental and further accumulation of data is warranted.
Collapse
Affiliation(s)
- Takashi Morishita
- />Department of Neurosurgery, McKnight Brain Institute, University of Florida College of Medicine/Shands Hospital, Center for Movement Disorders and Neurorestoration, 1149 South Newell Drive, Gainesville, FL 32611 USA
| | - Sarah M. Fayad
- />Department of Psychiatry, McKnight Brain Institute, University of Florida College of Medicine/Shands Hospital, Center for Movement Disorders and Neurorestoration, Gainesville, FL USA
| | - Masa-aki Higuchi
- />Department of Neurology, McKnight Brain Institute, University of Florida College of Medicine/Shands Hospital, Center for Movement Disorders and Neurorestoration, Gainesville, FL USA
| | - Kelsey A. Nestor
- />Department of Neurosurgery, McKnight Brain Institute, University of Florida College of Medicine/Shands Hospital, Center for Movement Disorders and Neurorestoration, 1149 South Newell Drive, Gainesville, FL 32611 USA
| | - Kelly D. Foote
- />Department of Neurosurgery, McKnight Brain Institute, University of Florida College of Medicine/Shands Hospital, Center for Movement Disorders and Neurorestoration, 1149 South Newell Drive, Gainesville, FL 32611 USA
| |
Collapse
|
33
|
Panov F, Kopell BH. Use of cortical stimulation in neuropathic pain, tinnitus, depression, and movement disorders. Neurotherapeutics 2014; 11:564-71. [PMID: 24888372 PMCID: PMC4121452 DOI: 10.1007/s13311-014-0283-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Medical treatment must strike a balance between benefit and risk. As the field of neuromodulation develops, decreased invasiveness, in combination with maintenance of efficacy, has become a goal. We provide a review of the history of cortical stimulation from its origins to the current state. The first part discusses neuropathic pain and the nonpharmacological treatment options used. The second part covers transitions to tinnitus, believed by many to be another deafferentation disorder, its classification, and treatment. The third part focuses on major depression. The fourth section concludes with the discussion of the use of cortical stimulation in movement disorders. Each part discusses the development of the field, describes the current care protocols, and suggests future avenues for research needed to advance neuromodulation.
Collapse
Affiliation(s)
- Fedor Panov
- Department of Neurosurgery, Mount Sinai School of Medicine, 1 Gustave L Levy Place, New York, NY 10029 USA
| | - Brian Harris Kopell
- Department of Neurosurgery, Mount Sinai School of Medicine, 1 Gustave L Levy Place, New York, NY 10029 USA
| |
Collapse
|
34
|
Bregman T, Diwan M, Nobrega JN, Hamani C. Supraorbital stimulation does not induce an antidepressant-like response in rats. Brain Stimul 2013; 7:301-3. [PMID: 24629830 DOI: 10.1016/j.brs.2013.11.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 09/27/2013] [Accepted: 11/07/2013] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Neuromodulation therapies are currently being investigated as potential treatments for depression. One of these treatments involves the stimulation of supraorbital branches of the trigeminal nerve. OBJECTIVE To show that supraorbital stimulation is effective in preclinical models. METHODS Rats were given supraorbital stimulation at different settings in the forced swim test (FST) and open field. RESULTS Supraorbital stimulation did not induce an antidepressant-like response in rats undergoing the FST. This is in contrast to other neuromodulation treatments, such as deep brain stimulation, vagus nerve stimulation and electroconvulsive therapy, which are all effective in this paradigm. CONCLUSIONS Supraorbital stimulation was ineffective in rats undergoing the FST. Such findings do not invalidate results of recent clinical trials.
Collapse
Affiliation(s)
- Tatiana Bregman
- Neuroimaging Research Section, Centre for Addiction and Mental Health, 250 College Street, Toronto, ON M5T 1R8, Canada
| | - Mustansir Diwan
- Neuroimaging Research Section, Centre for Addiction and Mental Health, 250 College Street, Toronto, ON M5T 1R8, Canada
| | - José N Nobrega
- Neuroimaging Research Section, Centre for Addiction and Mental Health, 250 College Street, Toronto, ON M5T 1R8, Canada
| | - Clement Hamani
- Neuroimaging Research Section, Centre for Addiction and Mental Health, 250 College Street, Toronto, ON M5T 1R8, Canada; Division of Neurosurgery, University of Toronto, Toronto Western Hospital, 399 Bathurst Street, Toronto, ON M5T 2S8, Canada.
| |
Collapse
|
35
|
Hariz M, Blomstedt P, Zrinzo L. Future of brain stimulation: new targets, new indications, new technology. Mov Disord 2013; 28:1784-92. [PMID: 24123327 DOI: 10.1002/mds.25665] [Citation(s) in RCA: 103] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2013] [Revised: 06/27/2013] [Accepted: 08/09/2013] [Indexed: 01/15/2023] Open
Abstract
In the last quarter of a century, DBS has become an established neurosurgical treatment for Parkinson's disease (PD), dystonia, and tremors. Improved understanding of brain circuitries and their involvement in various neurological and psychiatric illnesses, coupled with the safety of DBS and its exquisite role as a tool for ethical study of the human brain, have unlocked new opportunities for this technology, both for future therapies and in research. Serendipitous discoveries and advances in structural and functional imaging are providing abundant "new" brain targets for an ever-increasing number of pathologies, leading to investigations of DBS in diverse neurological, psychiatric, behavioral, and cognitive conditions. Trials and "proof of concept" studies of DBS are underway in pain, epilepsy, tinnitus, OCD, depression, and Gilles de la Tourette syndrome, as well as in eating disorders, addiction, cognitive decline, consciousness, and autonomic states. In parallel, ongoing technological development will provide pulse generators with longer battery longevity, segmental electrode designs allowing a current steering, and the possibility to deliver "on-demand" stimulation based on closed-loop concepts. The future of brain stimulation is certainly promising, especially for movement disorders-that will remain the main indication for DBS for the foreseeable future-and probably for some psychiatric disorders. However, brain stimulation as a technique may be at risk of gliding down a slippery slope: Some reports indicate a disturbing trend with suggestions that future DBS may be proposed for enhancement of memory in healthy people, or as a tool for "treatment" of "antisocial behavior" and for improving "morality."
Collapse
Affiliation(s)
- Marwan Hariz
- Unit of Functional Neurosurgery, UCL Institute of Neurology, London, UK; Department of Clinical Neuroscience, Umeå University, Umeå, Sweden
| | | | | |
Collapse
|
36
|
Comparison of spherical and realistically shaped boundary element head models for transcranial magnetic stimulation navigation. Clin Neurophysiol 2013; 124:1995-2007. [PMID: 23890512 DOI: 10.1016/j.clinph.2013.04.019] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Revised: 04/29/2013] [Accepted: 04/29/2013] [Indexed: 11/20/2022]
Abstract
OBJECTIVE MRI-guided real-time transcranial magnetic stimulation (TMS) navigators that apply electromagnetic modeling have improved the utility of TMS. However, their accuracy and speed depends on the assumed volume conductor geometry. Spherical models found in present navigators are computationally fast but may be inaccurate in some areas. Realistically shaped boundary-element models (BEMs) could increase accuracy at a moderate computational cost, but it is unknown which model features have the largest influence on accuracy. Thus, we compared different types of spherical models and BEMs. METHODS Globally and locally fitted spherical models and different BEMs with either one or three compartments and with different skull-to-brain conductivity ratios (1/1-1/80) were compared against a reference BEM. RESULTS The one-compartment BEM at inner skull surface was almost as accurate as the reference BEM. Skull/brain conductivity ratio in the range 1/10-1/80 had only a minor influence. BEMs were superior to spherical models especially in frontal and temporal areas (up to 20mm localization and 40% intensity improvement); in motor cortex all models provided similar results. CONCLUSIONS One-compartment BEMs offer a good balance between accuracy and computational cost. SIGNIFICANCE Realistically shaped BEMs may increase TMS navigation accuracy in several brain areas, such as in prefrontal regions often targeted in clinical applications.
Collapse
|
37
|
Downar J, Daskalakis ZJ. New Targets for rTMS in Depression: A Review of Convergent Evidence. Brain Stimul 2013; 6:231-40. [DOI: 10.1016/j.brs.2012.08.006] [Citation(s) in RCA: 129] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2012] [Revised: 08/27/2012] [Accepted: 08/28/2012] [Indexed: 01/12/2023] Open
|
38
|
Pathak Y, Kopell BH, Szabo A, Rainey C, Harsch H, Butson CR. The role of electrode location and stimulation polarity in patient response to cortical stimulation for major depressive disorder. Brain Stimul 2013; 6:254-60. [PMID: 22819247 PMCID: PMC4520296 DOI: 10.1016/j.brs.2012.07.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2012] [Revised: 06/29/2012] [Accepted: 07/04/2012] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Major depressive disorder (MDD) is a neuropsychiatric condition that affects about one-sixth of the US population. Chronic epidural stimulation (EpCS) of the left dorsolateral prefrontal cortex (DLPFC) was recently evaluated as a treatment option for refractory MDD and was found to be effective during the open-label phase. However, two potential sources of variability in the study were differences in electrode position and the range of stimulation modes that were used in each patient. The objective of this study was to examine these factors in an effort to characterize successful EpCS therapy. METHODS Data were analyzed from eleven patients who received EpCS via a chronically implanted system. Estimates were generated of response probability as a function of duration of stimulation. The relative effectiveness of different stimulation modes was also evaluated. Lastly, a computational analysis of the pre- and post-operative imaging was performed to assess the effects of electrode location. The primary outcome measure was the change in Hamilton Depression Rating Scale (HDRS-28). RESULTS Significant improvement was observed in mixed mode stimulation (alternating cathodic and anodic) and continuous anodic stimulation (full power). The changes observed in HDRS-28 over time suggest that 20 weeks of stimulation are necessary to approach a 50% response probability. Lastly, stimulation in the lateral and anterior regions of DLPFC was correlated with greatest degree of improvement. CONCLUSIONS A persistent problem in neuromodulation studies has been the selection of stimulation parameters and electrode location to provide optimal therapeutic response. The approach used in this paper suggests that insights can be gained by performing a detailed analysis of response while controlling for important details such as electrode location and stimulation settings.
Collapse
Affiliation(s)
- Yagna Pathak
- Department of Biomedical Engineering, Marquette University, Milwaukee, WI
| | - Brian H. Kopell
- Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI
- Department of Psychiatry, Medical College of Wisconsin, Milwaukee, WI
| | - Aniko Szabo
- Department of Biostatistics, Medical College of Wisconsin, Milwaukee, WI
| | - Charles Rainey
- Department of Psychiatry, Medical College of Wisconsin, Milwaukee, WI
| | - Harold Harsch
- Department of Psychiatry, Medical College of Wisconsin, Milwaukee, WI
| | - Christopher R. Butson
- Department of Biomedical Engineering, Marquette University, Milwaukee, WI
- Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI
- Department of Neurology, Medical College of Wisconsin, Milwaukee, WI
| |
Collapse
|
39
|
Lipsman N, Giacobbe P, Lozano AM. Deep brain stimulation in obsessive-compulsive disorder: neurocircuitry and clinical experience. HANDBOOK OF CLINICAL NEUROLOGY 2013; 116:245-250. [PMID: 24112898 DOI: 10.1016/b978-0-444-53497-2.00019-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The last decade has seen a significant rise in interest in the use of deep brain stimulation (DBS) for the management of obsessive-compulsive disorder (OCD), one of psychiatry's most challenging conditions. The prominent role of both thought (obsessions) and motor (compulsions) dysfunction in OCD place the condition at the border between the neurological and the psychiatric. This is supported by a growing body of literature that implicates structures in decision-making, reward, and action-selection circuits in the disorder. Here, we provide an overview of the neurocircuitry of OCD while reviewing the DBS literature to date for the condition. Results of DBS trials in treatment- resistant OCD have been remarkably similar, with clinical response rates in the range of 40-60%, despite the use of a diverse range of targets. These results imply that a common underlying circuit is being modulated, and moreover that there is room for improvement, and debate, in the development of an evidence-driven DBS treatment for this chronic, debilitating illness.
Collapse
Affiliation(s)
- Nir Lipsman
- Division of Neurosurgery, Toronto Western Hospital, University of Toronto, Toronto, Canada
| | | | | |
Collapse
|
40
|
Abstract
Cortical stimulation, either transcranial or by means of electrodes implanted epidurally or subdurally, is used increasingly to treat neuropsychiatric diseases. In cases where transcranial stimulation gives only short-term success, implanted electrodes can yield results that are similar but long-term. Epidural stimulation is used widely to treat chronic neuropathic pain, whereas newer fields are in movement disorders, tinnitus, depression, and functional rehabilitation after stroke. For epidural stimulation, computational models explain the geometry of stimulation parameters (anodal, cathodal, and bifocal) and are used for targeting to yield the best clinical results. Nevertheless, the role of the cerebrospinal fluid layer also has to be taken into consideration. Subdural or intrasulcal stimulation allows a more focused stimulation with lower current intensities. This advantage, however, is counterbalanced by a higher complication rate with regard to epileptic seizures, subdural or intracerebral hemorrhages, and wound infections.
Collapse
Affiliation(s)
- V Tronnier
- Department of Neurosurgery, Universitätsklinikum Schleswig-Holstein, Lübeck, Germany.
| | | |
Collapse
|
41
|
George MS, Taylor JJ, Short B. Treating the depressions with superficial brain stimulation methods. HANDBOOK OF CLINICAL NEUROLOGY 2013; 116:399-413. [PMID: 24112912 DOI: 10.1016/b978-0-444-53497-2.00033-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Many, if not most, of the different superficial brain stimulation methods are being either used or investigated to treat the depressions. There are likely many reasons why there is this much interest and research involving brain stimulation treatments for depression, including that the depressions are common, there is dissatisfaction with other treatments, and some patients do not respond to medications or talking therapies. This is coupled with the fact that depressive episodes are a periodic or temporary state of the brain, and that when patients are no longer in that state they return to normal functioning. Additionally, the oldest brain stimulation method, electroconvulsive therapy (ECT), is also the most effective antidepressant available for the acute treatment of depression in patients who do not respond to medications. The newer brain stimulation methods have followed in the path blazed by ECT, showing that stimulation of key regions can cause a change in brain state and treat the depression. After almost 20 years of research, repeated daily repetitive transcranial magnetic stimulation (rTMS) of the prefrontal cortex for several weeks is now also an established clinical treatment for acute episodes. The data are less convincing for the other brain stimulation methods, but all are being investigated. Using brain stimulation (as opposed to medications or talking therapy) to treat depression is a rapidly expanding area of research with already established clear indications. Much more work is needed to understand best which methods should be used in any given patient, and in what order.
Collapse
Affiliation(s)
- Mark S George
- Brain Stimulation Division, Psychiatry Department, Medical University of South Carolina, and Ralph H. Johnson VA Medical Center, Charleston, SC, USA.
| | | | | |
Collapse
|
42
|
Fox MD, Liu H, Pascual-Leone A. Identification of reproducible individualized targets for treatment of depression with TMS based on intrinsic connectivity. Neuroimage 2012; 66:151-60. [PMID: 23142067 DOI: 10.1016/j.neuroimage.2012.10.082] [Citation(s) in RCA: 237] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2012] [Revised: 10/17/2012] [Accepted: 10/31/2012] [Indexed: 01/18/2023] Open
Abstract
Transcranial magnetic stimulation (TMS) to the left dorsolateral prefrontal cortex (DLPFC) is used clinically for the treatment of depression however outcomes vary greatly between patients. We have shown that average clinical efficacy of different left DLPFC TMS sites is related to intrinsic functional connectivity with remote regions including the subgenual cingulate and suggested that functional connectivity with these remote regions might be used to identify optimized left DLPFC targets for TMS. However it remains unclear if and how this connectivity-based targeting approach should be applied at the single-subject level to potentially individualize therapy to specific patients. In this article we show that individual differences in DLPFC connectivity are large, reproducible across sessions, and can be used to generate individualized DLPFC TMS targets that may prove clinically superior to those selected on the basis of group-average connectivity. Factors likely to improve individualized targeting including the use of seed maps and the focality of stimulation are investigated and discussed. The techniques presented here may be applicable to individualized targeting of focal brain stimulation across a range of diseases and stimulation modalities and can be experimentally tested in clinical trials.
Collapse
Affiliation(s)
- Michael D Fox
- Partners Neurology, Massachusetts General Hospital, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Berenson-Allen Center for Noninvasive Brain Stimulation, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA; Athinoula A. Martinos Center for Biomedical Imaging, Harvard Medical School, Boston, MA, USA.
| | - Hesheng Liu
- Athinoula A. Martinos Center for Biomedical Imaging, Harvard Medical School, Boston, MA, USA
| | - Alvaro Pascual-Leone
- Berenson-Allen Center for Noninvasive Brain Stimulation, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA; Institut Guttmann, Hospital de Neurorehabilitació, Universitat Autònoma de Barcelona, Barcelona, Spain
| |
Collapse
|
43
|
Holtzheimer PE, Mayberg HS. Neuromodulation for treatment-resistant depression. F1000 MEDICINE REPORTS 2012. [PMID: 23189091 PMCID: PMC3506219 DOI: 10.3410/m4-22] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Treatment-resistant depression affects at least 1-3% of the US population. This article reviews the current state of focal neuromodulation therapies for treatment-resistant depression, focusing on those treatments published clinical data. These include transcranial magnetic stimulation, transcranial direct current stimulation, magnetic seizure therapy, vagus nerve stimulation, direct cortical stimulation, and deep brain stimulation among others. Of these, only two (transcranial magnetic stimulation and vagus nerve stimulation) currently have US Food and Drug Administration approval for the treatment of depression.
Collapse
Affiliation(s)
- Paul E Holtzheimer
- Departments of Psychiatry and Surgery, Dartmouth-Hitchcock Medical Center 5D, One Medical Center Drive, Lebanon NH 03756, USA
| | | |
Collapse
|
44
|
Anderson RJ, Frye MA, Abulseoud OA, Lee KH, McGillivray JA, Berk M, Tye SJ. Deep brain stimulation for treatment-resistant depression: efficacy, safety and mechanisms of action. Neurosci Biobehav Rev 2012; 36:1920-33. [PMID: 22721950 DOI: 10.1016/j.neubiorev.2012.06.001] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2012] [Revised: 06/06/2012] [Accepted: 06/10/2012] [Indexed: 12/22/2022]
Abstract
Deep brain stimulation (DBS), a neuromodulation therapy that has been used successfully in the treatment of symptoms associated with movement disorders, has recently undergone clinical trials for individuals suffering from treatment-resistant depression (TRD). Although the small patient numbers and open label study design limit our ability to identify optimum targets and make definitive conclusions about treatment efficacy, a review of the published research demonstrates significant reductions in depressive symptomatology and high rates of remission in a severely treatment-resistant patient group. Despite these encouraging results, an incomplete understanding of the mechanisms of action underlying the therapeutic effects of DBS for TRD is highlighted, paralleling the incomplete understanding of the neuroanatomy of mood regulation and treatment resistance. Proposed mechanisms of action include short and long-term local effects of stimulation at the neuronal level, to modulation of neural network activity.
Collapse
|
45
|
Spielmans GI. Unimpressive Efficacy and Unclear Safety Assessment of Epidural Cortical Stimulation for Refractory Major Depressive Disorder. Neurosurgery 2011; 70:E268-9; author reply E269. [DOI: 10.1227/neu.0b013e31823a3206] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
|