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Kiebs M, Farrar DC, Yrondi A, Cardoner N, Tuovinen N, Redlich R, Dannlowski U, Soriano-Mas C, Dols A, Takamiya A, Tendolkar I, Narr KL, Espinoza R, Laroy M, van Eijndhoven P, Verwijk E, van Waarde J, Verdijk J, Maier HB, Nordanskog P, van Wingen G, van Diermen L, Emsell L, Bouckaert F, Repple J, Camprodon JA, Wade BSC, Donaldson KT, Oltedal L, Kessler U, Hammar Å, Sienaert P, Hebbrecht K, Urretavizcaya M, Belge JB, Argyelan M, Baradits M, Obbels J, Draganski B, Philipsen A, Sartorius A, Rhebergen D, Ousdal OT, Hurlemann R, McClintock S, Erhardt EB, Abbott CC. Electroconvulsive therapy and cognitive performance from the Global ECT MRI Research Collaboration. J Psychiatr Res 2024; 179:199-208. [PMID: 39312853 DOI: 10.1016/j.jpsychires.2024.09.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 09/03/2024] [Accepted: 09/09/2024] [Indexed: 09/25/2024]
Abstract
The Global ECT MRI Research Collaboration (GEMRIC) has collected clinical and neuroimaging data of patients treated with electroconvulsive therapy (ECT) from around the world. Results to date have focused on neuroimaging correlates of antidepressant response. GEMRIC sites have also collected longitudinal cognitive data. Here, we summarize the existing GEMRIC cognitive data and provide recommendations for prospective data collection for future ECT-imaging investigations. We describe the criteria for selection of cognitive measures for mega-analyses: Trail Making Test Parts A (TMT-A) and B (TMT-B), verbal fluency category (VFC), verbal fluency letter (VFL), and percent retention from verbal learning and memory tests. We performed longitudinal data analysis focused on the pre-/post-ECT assessments with healthy comparison (HC) subjects at similar timepoints and assessed associations between demographic and ECT parameters with cognitive changes. The study found an interaction between electrode placement and treatment number for VFC (F(1,107) = 4.14, p = 0.04). Higher treatment was associated with decreased VFC performance with right unilateral electrode placement. Percent retention showed a main effect for group, with post-hoc analysis indicating decreased cognitive performance among the HC group. However, there were no significant effects of group or group interactions observed for TMT-A, TMT-B, or VFL. We assessed the current GEMRIC cognitive data and acknowledge the limitations associated with this data set including the limited number of neuropsychological domains assessed. Aside from the VFC and treatment number relationship, we did not observe ECT-mediated neurocognitive effects in this investigation. We provide prospective cognitive recommendations for future ECT-imaging investigations focused on strong psychometrics and minimal burden to subjects.
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Affiliation(s)
- Maximilian Kiebs
- Department of Psychiatry and Psychotherapy, School of Medicine and Health Sciences, University of Oldenburg, Oldenberg, Germany; Department of Psychiatry and Psychotherapy, University Hospital Bonn, Bonn, Germany.
| | - Danielle C Farrar
- Department of Psychiatry and Behavioral Sciences, University of New Mexico School of Medicine, Albuquerque, NM, USA
| | - Antoine Yrondi
- Service de Psychiatrie et de Psychologie Médicale, Centre Expert Dépression Résistante FondaMental, CHU de Toulouse, Hôpital Purpan, ToNIC Toulouse NeuroImaging Centre, Toulouse, France; Université de Toulouse, INSERM, UPS, Toulouse, France
| | - Narcis Cardoner
- Sant Pau Mental Health Research Group, Institut d'Investigació Biomèdica Sant Pau (IIB-SANT PAU), Hospital de la Santa Creu i Sant Pau, Barcelona, Spain; Department of Psychiatry and Forensic Medicine, School of Medicine Bellaterra, Universitat Autònoma de Barcelona, Barcelona, Spain; Network Center for Biomedical Research on Mental Health (CIBERSAM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Noora Tuovinen
- Department of Psychiatry, Psychotherapy, Psychosomatics and Medical Psychology, Division of Psychiatry I, Medical University of Innsbruck, Innsbruck, Austria
| | - Ronny Redlich
- Department of Psychology, University of Halle, Germany; Institute of Translational Psychiatry, University of Muenster, Germany; Halle-Jena-Magdeburg, German Center for Mental Health (DZPG), Germany
| | - Udo Dannlowski
- Institute of Translational Psychiatry, University of Muenster, Germany
| | - Carles Soriano-Mas
- Network Center for Biomedical Research on Mental Health (CIBERSAM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain; Psychiatry and Mental Health Group, Neuroscience Program, Institut d'Investigació Biomèdica de Bellvitge - IDIBELL, L'Hospitalet de Llobregat, Spain; Department of Social Psychology and Quantitative Psychology, Institute of Neurosciences, Universitat de Barcelona - UB, Barcelona, Spain
| | - Annemiek Dols
- Department of Psychiatry, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht, the Netherlands; Department of Psychiatry, Amsterdam UMC location, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Akihiro Takamiya
- Department of Neurosciences, Neuropsychiatry, Leuven Brain Institute, KU Leuven, Leuven, Belgium; Hills Joint Research Laboratory for Future Preventive Medicine and Wellness, Keio University School of Medicine, Tokyo, Japan
| | - Indira Tendolkar
- Department of Psychiatry, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Katherine L Narr
- Departments of Neurology and Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, USA
| | - Randall Espinoza
- Departments of Neurology and Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, USA
| | - Maarten Laroy
- Department of Neurosciences, Neuropsychiatry, Leuven Brain Institute, KU Leuven, Leuven, Belgium
| | - Philip van Eijndhoven
- Department of Psychiatry, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Esmée Verwijk
- Department of Psychology, Brain and Cognition, University of Amsterdam, Amsterdam, the Netherlands; Department of Medical Psychology, UMC Amsterdam, Amsterdam, the Netherlands; ECT-Department, Parnassia Psychiatric Institute, The Hague, the Netherlands
| | | | - Joey Verdijk
- Department of Psychiatry, Rijnstate, Arnhem, the Netherlands
| | - Hannah B Maier
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Germany
| | - Pia Nordanskog
- Center for Social and Affective Neuroscience (CSAN), Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden; Department of Psychiatry in Linköping, Linköping, Sweden
| | - Guido van Wingen
- Department of Psychiatry, Amsterdam UMC location, University of Amsterdam, Amsterdam, the Netherlands; Amsterdam Neuroscience Amsterdam, the Netherlands
| | - Linda van Diermen
- Department of Psychiatry, University Hospital of Liège, Liege, Belgium; Department of Psychiatry, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Louise Emsell
- Department of Neurosciences, Neuropsychiatry, Leuven Brain Institute, KU Leuven, Leuven, Belgium; Geriatric Psychiatry, University Psychiatry Center (UPC), KU Leuven, Leuven, Belgium
| | - Filip Bouckaert
- Department of Neurosciences, Neuropsychiatry, Leuven Brain Institute, KU Leuven, Leuven, Belgium; Geriatric Psychiatry, University Psychiatry Center (UPC), KU Leuven, Leuven, Belgium
| | - Jonathan Repple
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital, Goethe University Frankfurt, Frankfurt, Germany; Institute for Translational Psychiatry, University of Münster, Münster, Germany
| | - Joan A Camprodon
- Division of Neuropsychiatry and Neuromodulation, Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Benjamin S C Wade
- Division of Neuropsychiatry and Neuromodulation, Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - K Tristan Donaldson
- Division of Neuropsychiatry and Neuromodulation, Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Leif Oltedal
- Department of Clinical Medicine, University of Bergen, Bergen, Norway; Mohn Medical Imaging and Visualization Centre, Department of Radiology, Haukeland University Hospital, Bergen, Norway
| | - Ute Kessler
- Department of Psychiatry, Haukeland University Hospital, Bergen, Norway; University of Bergen, Bergen, Norway
| | - Åsa Hammar
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway; Department of Clinical Sciences Lund, Psychiatry, Faculty of Medicine, Lund University, Lund, Sweden; Office for Psychiatry and Habilitation, Psychiatry Research Skåne, Skåne, Sweden
| | - Pascal Sienaert
- Academic Center for ECT and Neuromodulation (AcCENT), Department of Neurosciences, Neuropsychiatry, University Psychiatry Center (UPC), KU Leuven, Leuven, Belgium
| | - Kaat Hebbrecht
- Academic Center for ECT and Neuromodulation (AcCENT), Department of Neurosciences, Neuropsychiatry, University Psychiatry Center (UPC), KU Leuven, Leuven, Belgium
| | - Mikel Urretavizcaya
- Network Center for Biomedical Research on Mental Health (CIBERSAM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain; Neurosciences Group - Psychiatry and Mental Health, Department of Psychiatry, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Spain; Department of Clinical Sciences, School of Medicine, Universitat de Barcelona, Barcelona, Spain
| | - Jean-Baptiste Belge
- Department of Psychiatry, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Miklos Argyelan
- Institute of Behavioral Science, Feinstein Institutes for Medical Research, Manhasset, NY, USA; Department of Psychiatry, The Zucker Hillside Hospital, Glen Oaks, NY, USA
| | - Mate Baradits
- Department of Psychiatry, The Zucker Hillside Hospital, Glen Oaks, NY, USA
| | - Jasmien Obbels
- Academic Center for ECT and Neuromodulation (AcCENT), Department of Neurosciences, Neuropsychiatry, University Psychiatry Center (UPC), KU Leuven, Leuven, Belgium
| | - Bogdan Draganski
- Department of Neurology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland; Neurology Department, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - Alexandra Philipsen
- Department of Psychiatry and Psychotherapy, University Hospital Bonn, Bonn, Germany
| | - Alexander Sartorius
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health (CIMH), Medical Faculty Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Didericke Rhebergen
- Department of Psychiatry, Amsterdam UMC location, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands; GGZ Central, Mental Health Institute, Amersfoort, the Netherlands
| | - Olga Therese Ousdal
- Department of Biomedicine, Faculty of Medicine, University of Bergen, Norway
| | - René Hurlemann
- Department of Psychiatry and Psychotherapy, School of Medicine and Health Sciences, University of Oldenburg, Oldenberg, Germany
| | - Shawn McClintock
- Division of Psychology, Department of Psychiatry, UT Southwestern Medical Center, Dallas, TX, USA
| | - Erik B Erhardt
- Department of Mathematics and Statistics, University of New Mexico, Albuquerque, NM, USA
| | - Christopher C Abbott
- Department of Psychiatry and Behavioral Sciences, University of New Mexico School of Medicine, Albuquerque, NM, USA.
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Gears E, Arnoudse N, Johnson RA, Differding C, Wilson S, Nahas Z. Cardiac Troponin I Elevation in Response to FEAST Elucidates the Necessity of Preoperative Cardiac Screening and Monitoring. J ECT 2024; 40:218-219. [PMID: 38830191 DOI: 10.1097/yct.0000000000001024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
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Khadka N, Deng ZD, Lisanby SH, Bikson M, Camprodon JA. Computational Models of High-Definition Electroconvulsive Therapy for Focal or Multitargeting Treatment. J ECT 2024:00124509-990000000-00211. [PMID: 39185880 DOI: 10.1097/yct.0000000000001069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/27/2024]
Abstract
ABSTRACT Attempts to dissociate electroconvulsive therapy (ECT) therapeutic efficacy from cognitive side effects of ECT include modifying electrode placement, but traditional electrode placements employing 2 large electrodes are inherently nonfocal, limiting the ability to selectively engage targets associated with clinical benefit while avoiding nontargets associated with adverse side effects. Limited focality represents a technical limitation of conventional ECT, and there is growing evidence that the spatial distribution of the ECT electric fields induced in the brain drives efficacy and side effects. Computational models can be used to predict brain current flow patterns for existing and novel ECT montages. Using finite element method simulations (under quasi-static, nonadaptive assumptions, 800-mA total current), the electric fields generated in the superficial cortex and subcortical structures were predicted for the following traditional ECT montages (bilateral temporal, bifrontal, right unilateral) and experimental montages (focal electrically administered seizure therapy, lateralized high-definition [HD]-ECT, unilateral 4 × 1-ring HD-ECT, bilateral 4 × 1-ring HD-ECT, and a multipolar HD-ECT). Peak brain current density in regions of interest was quantified. Conventional montages (bilateral bifrontal, right unilateral) each produce distinct but diffuse and deep current flow. Focal electrically administered seizure therapy and lateralized HD-ECT produce unique, lateralized current flow, also impacting specific deep regions. A 4 × 1-ring HD-ECT restricts current flow to 1 (unilateral) or 2 (bilateral) cortical regions. Multipolar HD-ECT shows optimization to a specific target set. Future clinical trials are needed to determine whether enhanced control over current distribution is achieved with these experimental montages, and the resultant seizures, improve the risk/benefit ratio of ECT.
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Affiliation(s)
- Niranjan Khadka
- From the Division of Neuropsychiatry and Neuromodulation, Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Zhi-De Deng
- Noninvasive Neuromodulation Unit, Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, Bethesda, MD
| | - Sarah H Lisanby
- Noninvasive Neuromodulation Unit, Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, Bethesda, MD
| | - Marom Bikson
- Department of Biomedical Engineering, The City College of New York, CUNY, NY
| | - Joan A Camprodon
- From the Division of Neuropsychiatry and Neuromodulation, Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA
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Abbott CC, Miller J, Farrar D, Argyelan M, Lloyd M, Squillaci T, Kimbrell B, Ryman S, Jones TR, Upston J, Quinn DK, Peterchev AV, Erhardt E, Datta A, McClintock SM, Deng ZD. Amplitude-determined seizure-threshold, electric field modeling, and electroconvulsive therapy antidepressant and cognitive outcomes. Neuropsychopharmacology 2024; 49:640-648. [PMID: 38212442 PMCID: PMC10876627 DOI: 10.1038/s41386-023-01780-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 11/06/2023] [Accepted: 11/26/2023] [Indexed: 01/13/2024]
Abstract
Electroconvulsive therapy (ECT) pulse amplitude, which dictates the induced electric field (E-field) magnitude in the brain, is presently fixed at 800 or 900 milliamperes (mA) without clinical or scientific rationale. We have previously demonstrated that increased E-field strength improves ECT's antidepressant effect but worsens cognitive outcomes. Amplitude-determined seizure titration may reduce the E-field variability relative to fixed amplitude ECT. In this investigation, we assessed the relationships among amplitude-determined seizure-threshold (STa), E-field magnitude, and clinical outcomes in older adults (age range 50 to 80 years) with depression. Subjects received brain imaging, depression assessment, and neuropsychological assessment pre-, mid-, and post-ECT. STa was determined during the first treatment with a Soterix Medical 4×1 High Definition ECT Multi-channel Stimulation Interface (Investigation Device Exemption: G200123). Subsequent treatments were completed with right unilateral electrode placement (RUL) and 800 mA. We calculated Ebrain defined as the 90th percentile of E-field magnitude in the whole brain for RUL electrode placement. Twenty-nine subjects were included in the final analyses. Ebrain per unit electrode current, Ebrain/I, was associated with STa. STa was associated with antidepressant outcomes at the mid-ECT assessment and bitemporal electrode placement switch. Ebrain/I was associated with changes in category fluency with a large effect size. The relationship between STa and Ebrain/I extends work from preclinical models and provides a validation step for ECT E-field modeling. ECT with individualized amplitude based on E-field modeling or STa has the potential to enhance neuroscience-based ECT parameter selection and improve clinical outcomes.
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Affiliation(s)
| | - Jeremy Miller
- Department of Psychiatry, University of New Mexico, Albuquerque, NM, USA
| | - Danielle Farrar
- Department of Psychiatry, University of New Mexico, Albuquerque, NM, USA
| | - Miklos Argyelan
- Institute of Behavioral Science, Feinstein Institutes for Medical Research, Manhasset, NY, USA
- Department of Psychiatry, The Zucker Hillside Hospital, Glen Oaks, NY, USA
| | - Megan Lloyd
- Department of Psychiatry, University of New Mexico, Albuquerque, NM, USA
| | - Taylor Squillaci
- Department of Psychiatry, University of New Mexico, Albuquerque, NM, USA
| | - Brian Kimbrell
- Department of Psychiatry, University of New Mexico, Albuquerque, NM, USA
| | - Sephira Ryman
- Mind Research Network, Albuquerque, NM, USA
- Department of Neurology, Albuquerque, NM, USA
| | - Thomas R Jones
- Department of Psychiatry, University of New Mexico, Albuquerque, NM, USA
| | - Joel Upston
- Department of Psychiatry, University of New Mexico, Albuquerque, NM, USA
| | - Davin K Quinn
- Department of Psychiatry, University of New Mexico, Albuquerque, NM, USA
| | - Angel V Peterchev
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
- Department of Electrical and Computer Engineering, Duke University, Durham, NC, USA
- Department of Neurosurgery, Duke University School of Medicine, Durham, NC, USA
| | - Erik Erhardt
- Department of Mathematics and Statistics, University of New Mexico, Albuquerque, NM, USA
| | | | - Shawn M McClintock
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA
- Division of Psychology, Department of Psychiatry, UT Southwestern Medical Center, Dallas, TX, USA
| | - Zhi-De Deng
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA
- Noninvasive Neuromodulation Unit, Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
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Deng ZD, Robins PL, Regenold W, Rohde P, Dannhauer M, Lisanby SH. How electroconvulsive therapy works in the treatment of depression: is it the seizure, the electricity, or both? Neuropsychopharmacology 2024; 49:150-162. [PMID: 37488281 PMCID: PMC10700353 DOI: 10.1038/s41386-023-01677-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 06/27/2023] [Accepted: 07/14/2023] [Indexed: 07/26/2023]
Abstract
We have known for nearly a century that triggering seizures can treat serious mental illness, but what we do not know is why. Electroconvulsive Therapy (ECT) works faster and better than conventional pharmacological interventions; however, those benefits come with a burden of side effects, most notably memory loss. Disentangling the mechanisms by which ECT exerts rapid therapeutic benefit from the mechanisms driving adverse effects could enable the development of the next generation of seizure therapies that lack the downside of ECT. The latest research suggests that this goal may be attainable because modifications of ECT technique have already yielded improvements in cognitive outcomes without sacrificing efficacy. These modifications involve changes in how the electricity is administered (both where in the brain, and how much), which in turn impacts the characteristics of the resulting seizure. What we do not completely understand is whether it is the changes in the applied electricity, or in the resulting seizure, or both, that are responsible for improved safety. Answering this question may be key to developing the next generation of seizure therapies that lack these adverse side effects, and ushering in novel interventions that are better, faster, and safer than ECT.
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Affiliation(s)
- Zhi-De Deng
- Noninvasive Neuromodulation Unit, Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, Bethesda, MD, USA
| | - Pei L Robins
- Noninvasive Neuromodulation Unit, Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, Bethesda, MD, USA
| | - William Regenold
- Noninvasive Neuromodulation Unit, Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, Bethesda, MD, USA
| | - Paul Rohde
- Noninvasive Neuromodulation Unit, Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, Bethesda, MD, USA
| | - Moritz Dannhauer
- Noninvasive Neuromodulation Unit, Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, Bethesda, MD, USA
| | - Sarah H Lisanby
- Noninvasive Neuromodulation Unit, Experimental Therapeutics and Pathophysiology Branch, National Institute of Mental Health, Bethesda, MD, USA.
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Nikolin S, Owens K, Francis-Taylor R, Chaimani A, Martin DM, Bull M, Sackeim HA, McLoughlin DM, Sienaert P, Kellner CH, Loo C. Comparative efficacy, cognitive effects and acceptability of electroconvulsive therapies for the treatment of depression: protocol for a systematic review and network meta-analysis. BMJ Open 2022; 12:e068313. [PMID: 36549738 PMCID: PMC9772645 DOI: 10.1136/bmjopen-2022-068313] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
INTRODUCTION There have been important advances in the use of electroconvulsive therapy (ECT) to treat major depressive episodes. These include variations to the type of stimulus the brain regions stimulated, and the stimulus parameters (eg, stimulus duration/pulse width). Our aim is to investigate ECT types using a network meta-analysis (NMA) approach and report on comparative treatment efficacy, cognitive side effects and acceptability. METHOD We will conduct a systematic review to identify randomised controlled trials that compared two or more ECT protocols to treat depression. This will be done using the following databases: Embase, MEDLINE PubMed, Web of Science, Scopus, PsycINFO, Cochrane CENTRAL and will be supplemented by personal contacts with researchers in the field. All authors will be contacted to provide missing information. Primary outcomes will be symptom severity on a validated continuous clinician-rated scale of depression, cognitive functioning measured using anterograde verbal recall, and acceptability calculated using all-cause drop-outs. Secondary outcomes will include response and remission rates, autobiographical memory following a course of ECT, and anterograde visuospatial recall.Bayesian random effects hierarchical models will compare ECT types. Additional meta-regressions may be conducted to determine the impact of effect modifiers and patient-specific prognostic factors if sufficient data are available. DISCUSSION This NMA will facilitate clinician decision making and allow more sophisticated selection of ECT type according to the balance of efficacy, cognitive side effects and acceptability. ETHICS This systematic review and NMA does not require research ethics approval as it will use published aggregate data and will not collect nor disclose individually identifiable participant data. PROSPERO REGISTRATION NUMBER CRD42022357098.
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Affiliation(s)
- Stevan Nikolin
- Department of Psychiatry, University of New South Wales, Sydney, New South Wales, Australia
- Black Dog Institute, Randwick, New South Wales, Australia
| | - Kieran Owens
- Department of Psychiatry, University of New South Wales, Sydney, New South Wales, Australia
| | - Rohan Francis-Taylor
- Department of Psychiatry, University of New South Wales, Sydney, New South Wales, Australia
- Black Dog Institute, Randwick, New South Wales, Australia
| | - Anna Chaimani
- Research Center of Epidemiology (CRESS-UMR1153), INSERM, INRA, Universite de Paris, Paris, France
| | - Donel M Martin
- Department of Psychiatry, University of New South Wales, Sydney, New South Wales, Australia
- Black Dog Institute, Randwick, New South Wales, Australia
| | - Michael Bull
- Department of Psychiatry, University of New South Wales, Sydney, New South Wales, Australia
- Black Dog Institute, Randwick, New South Wales, Australia
| | - Harold A Sackeim
- Department of Psychiatry, Columbia University, New York, New York, USA
| | | | - Pascal Sienaert
- Department of Neurosciences, KU Leuven Psychiatric University Hospital KU Leuven, Leuven, Belgium
| | - Charles H Kellner
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Colleen Loo
- Department of Psychiatry, University of New South Wales, Sydney, New South Wales, Australia
- Black Dog Institute, Randwick, New South Wales, Australia
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Qi S, Calhoun VD, Zhang D, Miller J, Deng ZD, Narr KL, Sheline Y, McClintock SM, Jiang R, Yang X, Upston J, Jones T, Sui J, Abbott CC. Links between electroconvulsive therapy responsive and cognitive impairment multimodal brain networks in late-life major depressive disorder. BMC Med 2022; 20:477. [PMID: 36482369 PMCID: PMC9733153 DOI: 10.1186/s12916-022-02678-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 11/23/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Although electroconvulsive therapy (ECT) is an effective treatment for depression, ECT cognitive impairment remains a major concern. The neurobiological underpinnings and mechanisms underlying ECT antidepressant and cognitive impairment effects remain unknown. This investigation aims to identify ECT antidepressant-response and cognitive-impairment multimodal brain networks and assesses whether they are associated with the ECT-induced electric field (E-field) with an optimal pulse amplitude estimation. METHODS A single site clinical trial focused on amplitude (600, 700, and 800 mA) included longitudinal multimodal imaging and clinical and cognitive assessments completed before and immediately after the ECT series (n = 54) for late-life depression. Another two independent validation cohorts (n = 84, n = 260) were included. Symptom and cognition were used as references to supervise fMRI and sMRI fusion to identify ECT antidepressant-response and cognitive-impairment multimodal brain networks. Correlations between ECT-induced E-field within these two networks and clinical and cognitive outcomes were calculated. An optimal pulse amplitude was estimated based on E-field within antidepressant-response and cognitive-impairment networks. RESULTS Decreased function in the superior orbitofrontal cortex and caudate accompanied with increased volume in medial temporal cortex showed covarying functional and structural alterations in both antidepressant-response and cognitive-impairment networks. Volume increases in the hippocampal complex and thalamus were antidepressant-response specific, and functional decreases in the amygdala and hippocampal complex were cognitive-impairment specific, which were validated in two independent datasets. The E-field within these two networks showed an inverse relationship with HDRS reduction and cognitive impairment. The optimal E-filed range as [92.7-113.9] V/m was estimated to maximize antidepressant outcomes without compromising cognitive safety. CONCLUSIONS The large degree of overlap between antidepressant-response and cognitive-impairment networks challenges parameter development focused on precise E-field dosing with new electrode placements. The determination of the optimal individualized ECT amplitude within the antidepressant and cognitive networks may improve the treatment benefit-risk ratio. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT02999269.
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Affiliation(s)
- Shile Qi
- College of Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, China.
| | - Vince D Calhoun
- Tri-institutional Center for Translational Research in Neuroimaging and Data Science (TReNDS) Georgia State University, Georgia Institute of Technology, Emory University, Atlanta, GA, USA
| | - Daoqiang Zhang
- College of Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Jeremy Miller
- Department of Psychiatry, University of New Mexico, Albuquerque, NM, USA
| | - Zhi-De Deng
- Noninvasive Neuromodulation Unit, Experimental Therapeutics & Pathophysiology Branch, National Institute of Mental Health, Bethesda, MD, USA
| | - Katherine L Narr
- Departments of Neurology, Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, CA, USA
| | - Yvette Sheline
- Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA
| | - Shawn M McClintock
- Division of Psychology, Department of Psychiatry, UT Southwestern Medical Center, Dallas, TX, USA
| | - Rongtao Jiang
- State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, China
| | - Xiao Yang
- Huaxi Brain Research Center, West China Hospital of Sichuan University, Chengdu, China
| | - Joel Upston
- Department of Psychiatry, University of New Mexico, Albuquerque, NM, USA
| | - Tom Jones
- Department of Psychiatry, University of New Mexico, Albuquerque, NM, USA
| | - Jing Sui
- State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, China.
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8
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Shaping plasticity with non-invasive brain stimulation in the treatment of psychiatric disorders: Present and future. HANDBOOK OF CLINICAL NEUROLOGY 2022; 184:497-507. [PMID: 35034757 PMCID: PMC9985830 DOI: 10.1016/b978-0-12-819410-2.00028-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The final chapter of this book addresses plasticity in the setting of treating psychiatric disorders. This chapter largely focuses on the treatment of depression and reviews the established antidepressant brain stimulation treatments, focusing on plasticity and maladaptive plasticity. Depression is a unique neuropsychiatric disease in that the brain goes from a healthy state into a pathologic state, and then, with appropriate treatment, can return to health often without permanent sequelae. Depression thus differs fundamentally from neurodegenerative brain diseases like Parkinson's disease or stroke. Some have theorized that depression involves a lack of flexibility or a lack of plasticity. The proven brain stimulation methods for treating depression cause plastic changes and include acute and maintenance electroconvulsive therapy (ECT), acute and maintenance transcranial magnetic stimulation (TMS), and chronically implanted cervical vagus nerve stimulation (VNS). These treatments vary widely in their speed of onset and durability. This variability in onset speed and durability raises interesting, and so far, largely unanswered questions about the underlying neurobiological mechanisms and forms of plasticity being invoked. The chapter also covers exciting recent work with vagus nerve stimulation (VNS) that is delivered paired with behaviors to cause learning and memory and plasticity changes. Taken together these current and future brain stimulation treatments for psychiatric disorders are especially promising. They are unlocking how to shape the brain in diseases to restore balance and health, with an increasing understanding of how to effectively and precisely induce therapeutic neuroplastic changes in the brain.
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9
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Youssef NA, George MS, McCall WV, Sahlem GL, Short B, Kerns S, Manett AJ, Fox JB, Dancy M, Cook D, Devries W, Rosenquist PB, Sackeim HA. The Effects of Focal Electrically Administered Seizure Therapy Compared With Ultrabrief Pulse Right Unilateral Electroconvulsive Therapy on Suicidal Ideation: A 2-Site Clinical Trial. J ECT 2021; 37:256-262. [PMID: 34015791 PMCID: PMC8606010 DOI: 10.1097/yct.0000000000000776] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Preliminary data suggest that focal electrically administered seizure therapy (FEAST) has antidepressant effects and less adverse cognitive effects than traditional forms of electroconvulsive therapy (ECT). This study compared the impact of FEAST and ultrabrief pulse, right unilateral (UB-RUL) ECT on suicidal ideation. METHODS At 2 sites, patients in a major depressive episode were treated openly with FEAST or UB-RUL ECT, depending on their preference. The primary outcome measure was scores on the Beck Scale for Suicide Ideation (SSI). Scores on the suicide item of the Hamilton Rating Scale for Depression (HRSD-SI) provided a secondary outcome measure. RESULTS Thirty-nine patients were included in the intent-to-treat sample (FEAST, n = 20; UB-RUL ECT, n = 19). Scores on both the SSI and HRSD-SI were equivalently reduced with both interventions. Both responders and nonresponders to the interventions showed substantial reductions in SSI and HRSD-SI scores, although the magnitude of improvement was greater among treatment responders. CONCLUSIONS Although limited by the open-label, nonrandomized design, FEAST showed comparable effects on suicidal ideation when compared with routine use of UB-RUL ECT. These results are encouraging and support the need for further research and a noninferiority trial.
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Affiliation(s)
| | | | - William V McCall
- From the Department of Psychiatry and Health Behavior, Medical College of Georgia at Augusta University, Augusta, GA
| | - Gregory L Sahlem
- Department of Psychiatry & Behavioral Sciences, Medical University of South Carolina
| | - Baron Short
- Department of Psychiatry & Behavioral Sciences, Medical University of South Carolina
| | - Suzanne Kerns
- Department of Psychiatry & Behavioral Sciences, Medical University of South Carolina
| | - Andrew J Manett
- Department of Psychiatry & Behavioral Sciences, Medical University of South Carolina
| | | | - Morgan Dancy
- Department of Psychiatry & Behavioral Sciences, Medical University of South Carolina
| | - Daniel Cook
- Department of Psychiatry & Behavioral Sciences, Medical University of South Carolina
| | - William Devries
- Department of Psychiatry & Behavioral Sciences, Medical University of South Carolina
| | - Peter B Rosenquist
- From the Department of Psychiatry and Health Behavior, Medical College of Georgia at Augusta University, Augusta, GA
| | - Harold A Sackeim
- Departments of Psychiatry and Radiology, Columbia University, NY, NY
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10
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Wilkinson ST, Kitay BM, Harper A, Rhee TG, Sint K, Ghosh A, Lopez MO, Saenz S, Tsai J. Barriers to the Implementation of Electroconvulsive Therapy (ECT): Results From a Nationwide Survey of ECT Practitioners. Psychiatr Serv 2021; 72:752-757. [PMID: 33971727 DOI: 10.1176/appi.ps.202000387] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Electroconvulsive therapy (ECT) is an effective treatment for major depressive disorder; yet, its use is confined to <1% of individuals with this disorder. The authors aimed to examine barriers to ECT from the perspective of the provider. METHODS Qualitative interviews were conducted with U.S.-based ECT providers to identify potential barriers. A quantitative survey was created asking providers to rank-order barriers to starting a new ECT service or expanding existing services. RESULTS Survey responses were received from 192 physicians. Respondents were representative of all ECT providers found in the Medicare Provider Utilization and Payment Database with respect to gender and geographic distribution. Approximately one-third (N=58, 30%) of survey respondents graduated from one of 12 residency programs. Programs with dedicated hospital space were more likely to have larger services than those borrowing surgical recovery space (χ2=25.87, df=1, p<0.001). The most prominent provider-reported barriers to expanding an existing ECT service were lack of physical space, stigma on the part of patients, and transportation difficulties. The most prominent barriers to initiating a new service were lack of well-trained colleagues and ECT practitioners, lack of a champion within the institution, and lack of physical space. Wide geographic variation was found in the availability of ECT, with the highest concentration of ECT providers per 1 million individuals found in New England (6.4), and the lowest found in the West South Central (1.1). CONCLUSIONS Coordinated efforts to overcome identified barriers may allow ECT to be more broadly implemented. Investments in education may increase the number of competent practitioners.
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Affiliation(s)
- Samuel T Wilkinson
- Yale Depression Research Program (Wilkinson, Kitay, Sint, Ghosh, Lopez, Saenz), Interventional Psychiatric Service (Wilkinson, Kitay, Ghosh, Lopez, Saenz), and Yale Program for Recovery and Community Health (Harper), Yale School of Medicine, New Haven, Connecticut; Department of Public Health Sciences, School of Medicine, University of Connecticut, Farmington (Rhee); School of Public Health, University of Texas Health Science Center at Houston, Houston (Tsai)
| | - Brandon M Kitay
- Yale Depression Research Program (Wilkinson, Kitay, Sint, Ghosh, Lopez, Saenz), Interventional Psychiatric Service (Wilkinson, Kitay, Ghosh, Lopez, Saenz), and Yale Program for Recovery and Community Health (Harper), Yale School of Medicine, New Haven, Connecticut; Department of Public Health Sciences, School of Medicine, University of Connecticut, Farmington (Rhee); School of Public Health, University of Texas Health Science Center at Houston, Houston (Tsai)
| | - Annie Harper
- Yale Depression Research Program (Wilkinson, Kitay, Sint, Ghosh, Lopez, Saenz), Interventional Psychiatric Service (Wilkinson, Kitay, Ghosh, Lopez, Saenz), and Yale Program for Recovery and Community Health (Harper), Yale School of Medicine, New Haven, Connecticut; Department of Public Health Sciences, School of Medicine, University of Connecticut, Farmington (Rhee); School of Public Health, University of Texas Health Science Center at Houston, Houston (Tsai)
| | - Taeho Greg Rhee
- Yale Depression Research Program (Wilkinson, Kitay, Sint, Ghosh, Lopez, Saenz), Interventional Psychiatric Service (Wilkinson, Kitay, Ghosh, Lopez, Saenz), and Yale Program for Recovery and Community Health (Harper), Yale School of Medicine, New Haven, Connecticut; Department of Public Health Sciences, School of Medicine, University of Connecticut, Farmington (Rhee); School of Public Health, University of Texas Health Science Center at Houston, Houston (Tsai)
| | - Kyaw Sint
- Yale Depression Research Program (Wilkinson, Kitay, Sint, Ghosh, Lopez, Saenz), Interventional Psychiatric Service (Wilkinson, Kitay, Ghosh, Lopez, Saenz), and Yale Program for Recovery and Community Health (Harper), Yale School of Medicine, New Haven, Connecticut; Department of Public Health Sciences, School of Medicine, University of Connecticut, Farmington (Rhee); School of Public Health, University of Texas Health Science Center at Houston, Houston (Tsai)
| | - Ahana Ghosh
- Yale Depression Research Program (Wilkinson, Kitay, Sint, Ghosh, Lopez, Saenz), Interventional Psychiatric Service (Wilkinson, Kitay, Ghosh, Lopez, Saenz), and Yale Program for Recovery and Community Health (Harper), Yale School of Medicine, New Haven, Connecticut; Department of Public Health Sciences, School of Medicine, University of Connecticut, Farmington (Rhee); School of Public Health, University of Texas Health Science Center at Houston, Houston (Tsai)
| | - Mayra Ortiz Lopez
- Yale Depression Research Program (Wilkinson, Kitay, Sint, Ghosh, Lopez, Saenz), Interventional Psychiatric Service (Wilkinson, Kitay, Ghosh, Lopez, Saenz), and Yale Program for Recovery and Community Health (Harper), Yale School of Medicine, New Haven, Connecticut; Department of Public Health Sciences, School of Medicine, University of Connecticut, Farmington (Rhee); School of Public Health, University of Texas Health Science Center at Houston, Houston (Tsai)
| | - Sabina Saenz
- Yale Depression Research Program (Wilkinson, Kitay, Sint, Ghosh, Lopez, Saenz), Interventional Psychiatric Service (Wilkinson, Kitay, Ghosh, Lopez, Saenz), and Yale Program for Recovery and Community Health (Harper), Yale School of Medicine, New Haven, Connecticut; Department of Public Health Sciences, School of Medicine, University of Connecticut, Farmington (Rhee); School of Public Health, University of Texas Health Science Center at Houston, Houston (Tsai)
| | - Jack Tsai
- Yale Depression Research Program (Wilkinson, Kitay, Sint, Ghosh, Lopez, Saenz), Interventional Psychiatric Service (Wilkinson, Kitay, Ghosh, Lopez, Saenz), and Yale Program for Recovery and Community Health (Harper), Yale School of Medicine, New Haven, Connecticut; Department of Public Health Sciences, School of Medicine, University of Connecticut, Farmington (Rhee); School of Public Health, University of Texas Health Science Center at Houston, Houston (Tsai)
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11
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McGlynn E, Nabaei V, Ren E, Galeote‐Checa G, Das R, Curia G, Heidari H. The Future of Neuroscience: Flexible and Wireless Implantable Neural Electronics. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2002693. [PMID: 34026431 PMCID: PMC8132070 DOI: 10.1002/advs.202002693] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 01/15/2021] [Indexed: 05/04/2023]
Abstract
Neurological diseases are a prevalent cause of global mortality and are of growing concern when considering an ageing global population. Traditional treatments are accompanied by serious side effects including repeated treatment sessions, invasive surgeries, or infections. For example, in the case of deep brain stimulation, large, stiff, and battery powered neural probes recruit thousands of neurons with each pulse, and can invoke a vigorous immune response. This paper presents challenges in engineering and neuroscience in developing miniaturized and biointegrated alternatives, in the form of microelectrode probes. Progress in design and topology of neural implants has shifted the goal post toward highly specific recording and stimulation, targeting small groups of neurons and reducing the foreign body response with biomimetic design principles. Implantable device design recommendations, fabrication techniques, and clinical evaluation of the impact flexible, integrated probes will have on the treatment of neurological disorders are provided in this report. The choice of biocompatible material dictates fabrication techniques as novel methods reduce the complexity of manufacture. Wireless power, the final hurdle to truly implantable neural interfaces, is discussed. These aspects are the driving force behind continued research: significant breakthroughs in any one of these areas will revolutionize the treatment of neurological disorders.
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Affiliation(s)
- Eve McGlynn
- Microelectronics LabJames Watt School of EngineeringUniversity of GlasgowGlasgowG12 8QQUnited Kingdom
| | - Vahid Nabaei
- Microelectronics LabJames Watt School of EngineeringUniversity of GlasgowGlasgowG12 8QQUnited Kingdom
| | - Elisa Ren
- Laboratory of Experimental Electroencephalography and NeurophysiologyDepartment of BiomedicalMetabolic and Neural SciencesUniversity of Modena and Reggio EmiliaModena41125Italy
| | - Gabriel Galeote‐Checa
- Microelectronics LabJames Watt School of EngineeringUniversity of GlasgowGlasgowG12 8QQUnited Kingdom
| | - Rupam Das
- Microelectronics LabJames Watt School of EngineeringUniversity of GlasgowGlasgowG12 8QQUnited Kingdom
| | - Giulia Curia
- Laboratory of Experimental Electroencephalography and NeurophysiologyDepartment of BiomedicalMetabolic and Neural SciencesUniversity of Modena and Reggio EmiliaModena41125Italy
| | - Hadi Heidari
- Microelectronics LabJames Watt School of EngineeringUniversity of GlasgowGlasgowG12 8QQUnited Kingdom
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12
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Malhi GS, Bell E, Bassett D, Boyce P, Bryant R, Hazell P, Hopwood M, Lyndon B, Mulder R, Porter R, Singh AB, Murray G. The 2020 Royal Australian and New Zealand College of Psychiatrists clinical practice guidelines for mood disorders. Aust N Z J Psychiatry 2021; 55:7-117. [PMID: 33353391 DOI: 10.1177/0004867420979353] [Citation(s) in RCA: 246] [Impact Index Per Article: 82.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
OBJECTIVES To provide advice and guidance regarding the management of mood disorders, derived from scientific evidence and supplemented by expert clinical consensus to formulate s that maximise clinical utility. METHODS Articles and information sourced from search engines including PubMed, EMBASE, MEDLINE, PsycINFO and Google Scholar were supplemented by literature known to the mood disorders committee (e.g. books, book chapters and government reports) and from published depression and bipolar disorder guidelines. Relevant information was appraised and discussed in detail by members of the mood disorders committee, with a view to formulating and developing consensus-based recommendations and clinical guidance. The guidelines were subjected to rigorous consultation and external review involving: expert and clinical advisors, key stakeholders, professional bodies and specialist groups with interest in mood disorders. RESULTS The Royal Australian and New Zealand College of Psychiatrists mood disorders clinical practice guidelines 2020 (MDcpg2020) provide up-to-date guidance regarding the management of mood disorders that is informed by evidence and clinical experience. The guideline is intended for clinical use by psychiatrists, psychologists, primary care physicians and others with an interest in mental health care. CONCLUSION The MDcpg2020 builds on the previous 2015 guidelines and maintains its joint focus on both depressive and bipolar disorders. It provides up-to-date recommendations and guidance within an evidence-based framework, supplemented by expert clinical consensus. MOOD DISORDERS COMMITTEE Gin S Malhi (Chair), Erica Bell, Darryl Bassett, Philip Boyce, Richard Bryant, Philip Hazell, Malcolm Hopwood, Bill Lyndon, Roger Mulder, Richard Porter, Ajeet B Singh and Greg Murray.
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Affiliation(s)
- Gin S Malhi
- The University of Sydney, Faculty of Medicine and Health, Northern Clinical School, Department of Psychiatry, Sydney, NSW, Australia.,Academic Department of Psychiatry, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, NSW, Australia.,CADE Clinic, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, NSW, Australia
| | - Erica Bell
- The University of Sydney, Faculty of Medicine and Health, Northern Clinical School, Department of Psychiatry, Sydney, NSW, Australia.,Academic Department of Psychiatry, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, NSW, Australia.,CADE Clinic, Royal North Shore Hospital, Northern Sydney Local Health District, St Leonards, NSW, Australia
| | | | - Philip Boyce
- Department of Psychiatry, Westmead Hospital and the Westmead Clinical School, Wentworthville, NSW, Australia.,Discipline of Psychiatry, Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Richard Bryant
- School of Psychology, University of New South Wales, Sydney, NSW, Australia
| | - Philip Hazell
- Discipline of Psychiatry, Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Malcolm Hopwood
- Department of Psychiatry, University of Melbourne and Professorial Psychiatry Unit, Albert Road Clinic, Melbourne, VIC, Australia
| | - Bill Lyndon
- The University of Sydney, Faculty of Medicine and Health, Northern Clinical School, Department of Psychiatry, Sydney, NSW, Australia
| | - Roger Mulder
- Department of Psychological Medicine, University of Otago, Christchurch, New Zealand
| | - Richard Porter
- Department of Psychological Medicine, University of Otago, Christchurch, New Zealand
| | - Ajeet B Singh
- The Geelong Clinic Healthscope, IMPACT - Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, VIC, Australia
| | - Greg Murray
- Centre for Mental Health, Swinburne University of Technology, Hawthorn, VIC, Australia
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13
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Sahlem GL, McCall WV, Short EB, Rosenquist PB, Fox JB, Youssef NA, Manett AJ, Kerns SE, Dancy MM, McCloud L, George MS, Sackeim HA. A two-site, open-label, non-randomized trial comparing Focal Electrically-Administered Seizure Therapy (FEAST) and right unilateral ultrabrief pulse electroconvulsive therapy (RUL-UBP ECT). Brain Stimul 2020; 13:1416-1425. [PMID: 32735987 PMCID: PMC7500956 DOI: 10.1016/j.brs.2020.07.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 07/17/2020] [Accepted: 07/21/2020] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Focal Electrically-Administered Seizure Therapy (FEAST) is a form of electroconvulsive therapy (ECT) that spatially focuses the electrical stimulus to initiate seizure activity in right prefrontal cortex. Two open-label non-comparative studies suggested that FEAST has reduced cognitive side effects when compared to historical data from other forms of ECT. In two different ECT clinics, we compared the efficacy and cognitive side effects of FEAST and Right Unilateral Ultrabrief Pulse (RUL-UBP) ECT. METHODS Using a non-randomized, open-label design, 39 depressed adults were recruited after referral for ECT. Twenty patients received FEAST (14 women; age 45.2 ± 12.7), and 19 received RUL-UBP ECT (16 women; age 43.2 ± 16.4). Key cognitive outcome measures were the postictal time to reorientation and the Columbia University Autobiographical Memory Interview: Short-Form (CUAMI-SF). Antidepressant effects were assessed using the Hamilton Rating Scale for Depression (HRSD24). RESULTS In the Intent-to-treat sample, a repeated measures mixed model suggested no between group difference in HRSD24 score over time (F1,35 = 0.82, p = 0.37), while the response rate favored FEAST (FEAST: 65%; RUL-UBP ECT: 57.9%), and the remission rate favored RUL-UBP ECT (FEAST: 35%; RUL-UBP ECT: 47.4%). The FEAST group had numeric superiority in average time to reorientation (FEAST: 6.6 ± 5.0 min; RUL-UBP ECT: 8.8 ± 5.8 min; Cohens d = 0.41), and CUAMI-SF consistency score (FEAST: 69.2 ± 14.2%; RUL-UBP ECT: 63.9 ± 9.9%; Cohens d = 0.43); findings that failed to meet statistical significance. CONCLUSIONS FEAST exerts similar efficacy relative to an optimal form of conventional ECT and may have milder cognitive side effects. A blinded, randomized, non-inferiority trial is needed.
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Affiliation(s)
- Gregory L Sahlem
- Brain Stimulation Division, Department of Psychiatry, Medical University of South Carolina, SC, USA.
| | - William V McCall
- Department of Psychiatry and Health Behavior, GA, USA; Medical College of Georgia, GA, USA; Augusta University, GA, USA
| | - E Baron Short
- Brain Stimulation Division, Department of Psychiatry, Medical University of South Carolina, SC, USA
| | - Peter B Rosenquist
- Department of Psychiatry and Health Behavior, GA, USA; Medical College of Georgia, GA, USA; Augusta University, GA, USA
| | - James B Fox
- Brain Stimulation Division, Department of Psychiatry, Medical University of South Carolina, SC, USA
| | - Nagy A Youssef
- Department of Psychiatry and Health Behavior, GA, USA; Medical College of Georgia, GA, USA; Augusta University, GA, USA
| | - Andrew J Manett
- Brain Stimulation Division, Department of Psychiatry, Medical University of South Carolina, SC, USA
| | - Suzanne E Kerns
- Brain Stimulation Division, Department of Psychiatry, Medical University of South Carolina, SC, USA
| | - Morgan M Dancy
- Brain Stimulation Division, Department of Psychiatry, Medical University of South Carolina, SC, USA
| | - Laryssa McCloud
- Department of Psychiatry and Health Behavior, GA, USA; Medical College of Georgia, GA, USA; Augusta University, GA, USA
| | - Mark S George
- Brain Stimulation Division, Department of Psychiatry, Medical University of South Carolina, SC, USA; Ralph H. Johnson VA Medical Center, SC, USA
| | - Harold A Sackeim
- Departments of Psychiatry and Radiology, Columbia University, NY, USA
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14
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van Rooij SJH, Riva-Posse P, McDonald WM. The Efficacy and Safety of Neuromodulation Treatments in Late-Life Depression. ACTA ACUST UNITED AC 2020; 7:337-348. [PMID: 33585164 DOI: 10.1007/s40501-020-00216-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Purpose of review In this review, the efficacy and safety of FDA approved neuromodulation devices (electroconvulsive therapy (ECT), transcranial magnetic stimulation (TMS) and vagus nerve stimulation (VNS)), as well as emerging neuromodulation treatments currently under investigation. Recent findings ECT is the "gold standard" somatic therapy for treatment resistant depression (TRD). Although the clinical benefits are outweighed by potential cognitive and cardiovascular side effects in majority of cases, it remains unfairly stigmatized. TMS has few cognitive or somatic side effects but is not as effective the treatment of psychotic depression or more treatment resistant depression in elders. VNS has limited data in older patients but has been shown to be effective in chronic, treatment resistant adults. Several investigative neuromodulation treatments including magnetic seizure therapy (MST), focal electrically administered seizure therapy (FEAST), transcutaneous VNS (tVNS), transcranial direct current stimulation (tDCS), and deep brain simulation (DBS) shown promise in geriatric TRD. Summary ECT, TMS and VNS are effective treatment for late-life depression, and research has continued to refine the techniques. Investigative neuromodulation techniques are promising, but evidence for the safety and efficacy of these devices in the geriatric population is needed.
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Affiliation(s)
- Sanne J H van Rooij
- Emory University School of Medicine, Department of Psychiatry and Behavioral Sciences, Atlanta, GA, USA
| | - Patricio Riva-Posse
- Emory University School of Medicine, Department of Psychiatry and Behavioral Sciences, Atlanta, GA, USA
| | - William M McDonald
- Emory University School of Medicine, Department of Psychiatry and Behavioral Sciences, Atlanta, GA, USA
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15
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Vlaicu A, Bustuchina Vlaicu M. New neuromodulation techniques for treatment resistant depression. Int J Psychiatry Clin Pract 2020; 24:106-115. [PMID: 32069166 DOI: 10.1080/13651501.2020.1728340] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
In the treatment of depression, when pharmacotherapy, psychotherapy and the oldest brain stimulation techniques are deadlocked, the emergence of new therapies is a necessary development. The field of neuromodulation is very broad and controversial. This article provides an overview of current progress in the technological advances in neuromodulation and neurostimulation treatments for treatment-resistant depression: magnetic seizure therapy; focal electrically administered seizure therapy; low field magnetic stimulation; transcranial pulsed electromagnetic fields; transcranial direct current stimulation; epidural cortical stimulation; trigeminal nerve stimulation; transcutaneous vagus nerve stimulation; transcranial focussed ultrasound; near infra-red transcranial radiation; closed loop stimulation. The role of new interventions is expanding, probably with more efficacy. Nowadays, still under experimentation, neuromodulation will probably revolutionise the field of neuroscience. At present, major efforts are still necessary before that these therapies are likely to become widespread.Key pointsThere is a critical need for new therapies for treatment resistant depression.Newer therapies are expanding. In the future, these therapies, as an evidence-based adjunctive treatments, could offer a good therapeutic choice for the patients with a TRD.The current trend in the new neuromodulation therapies is to apply a personalised treatment.These news therapies can be complementary.That treatment approaches can provide clinically significant benefits.
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Affiliation(s)
- Andrei Vlaicu
- Psychiatry Department, CHHM, Hospital Andre Breton, Saint-Dizier, France
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16
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17
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Martin D, Lin F, Bai S, Moffa A, Taylor R, Nikolin S, Bull M, Dokos S, Loo CK. A systematic review and computational modelling analysis of unilateral montages in electroconvulsive therapy. Acta Psychiatr Scand 2019; 140:408-425. [PMID: 31419305 DOI: 10.1111/acps.13089] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/12/2019] [Indexed: 12/25/2022]
Abstract
OBJECTIVE To examine the clinical outcomes of ECT unilateral placements compared in prior studies and apply insights from computational modelling to understand differences between placements. METHODS PubMed, Embase, Scopus and PsycINFO and reference lists were systematically searched for studies of depressed patients where two unilateral placements were compared and clinical outcomes were reported. Computational modelling was done to generate electric field maps for each unilateral placement identified in the systematic review. RESULTS A total of 29 studies met criteria for inclusion. Eight studies reported efficacy outcomes and 23 studies reported cognitive outcomes. Most studies found no significant difference in efficacy between right unilateral (RUL) and left unilateral (LUL) ECT, and no difference was found between temporo-parietal and fronto-temporal ECT. For the majority of studies, RUL placements had better verbal anterograde memory outcomes compared with the LUL placements. There was some evidence suggestive of cognitive advantages for fronto-frontal and fronto-parietal placements relative to temporo-parietal ECT. CONCLUSIONS For efficacy, studies mainly focused on the comparison of right vs. left hemispheric stimulation, with the available evidence suggesting no substantive difference. RUL placements tended to have better verbal anterograde memory outcomes relative to LUL placements, though limited differences were found between the RUL placements.
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Affiliation(s)
- D Martin
- Black Dog Institute, Sydney, NSW, Australia.,School of Psychiatry, University of New South Wales, Sydney, NSW, Australia
| | - F Lin
- Black Dog Institute, Sydney, NSW, Australia.,School of Psychiatry, University of New South Wales, Sydney, NSW, Australia
| | - S Bai
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW, Australia.,Department of Electrical and Computer Engineering, Technical University of Munich (TUM), Munich, Germany.,Munich School of BioEngineering, TUM, Garching, Germany
| | - A Moffa
- School of Psychiatry, University of New South Wales, Sydney, NSW, Australia
| | - R Taylor
- School of Psychiatry, University of New South Wales, Sydney, NSW, Australia.,Concord Centre for Mental Health, Concord, NSW, Australia
| | - S Nikolin
- Black Dog Institute, Sydney, NSW, Australia.,School of Psychiatry, University of New South Wales, Sydney, NSW, Australia
| | - M Bull
- Black Dog Institute, Sydney, NSW, Australia.,HNE Mental Health, Waratah, NSW, Australia
| | - S Dokos
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW, Australia
| | - C K Loo
- Black Dog Institute, Sydney, NSW, Australia.,St George Hospital, South Eastern Sydney Health, Sydney, NSW, Australia
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18
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Bikson M, Esmaeilpour Z, Adair D, Kronberg G, Tyler WJ, Antal A, Datta A, Sabel BA, Nitsche MA, Loo C, Edwards D, Ekhtiari H, Knotkova H, Woods AJ, Hampstead BM, Badran BW, Peterchev AV. Transcranial electrical stimulation nomenclature. Brain Stimul 2019; 12:1349-1366. [PMID: 31358456 DOI: 10.1016/j.brs.2019.07.010] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 06/25/2019] [Accepted: 07/14/2019] [Indexed: 01/03/2023] Open
Abstract
Transcranial electrical stimulation (tES) aims to alter brain function non-invasively by applying current to electrodes on the scalp. Decades of research and technological advancement are associated with a growing diversity of tES methods and the associated nomenclature for describing these methods. Whether intended to produce a specific response so the brain can be studied or lead to a more enduring change in behavior (e.g. for treatment), the motivations for using tES have themselves influenced the evolution of nomenclature, leading to some scientific, clinical, and public confusion. This ambiguity arises from (i) the infinite parameter space available in designing tES methods of application and (ii) varied naming conventions based upon the intended effects and/or methods of application. Here, we compile a cohesive nomenclature for contemporary tES technologies that respects existing and historical norms, while incorporating insight and classifications based on state-of-the-art findings. We consolidate and clarify existing terminology conventions, but do not aim to create new nomenclature. The presented nomenclature aims to balance adopting broad definitions that encourage flexibility and innovation in research approaches, against classification specificity that minimizes ambiguity about protocols but can hinder progress. Constructive research around tES classification, such as transcranial direct current stimulation (tDCS), should allow some variations in protocol but also distinguish from approaches that bear so little resemblance that their safety and efficacy should not be compared directly. The proposed framework includes terms in contemporary use across peer-reviewed publications, including relatively new nomenclature introduced in the past decade, such as transcranial alternating current stimulation (tACS) and transcranial pulsed current stimulation (tPCS), as well as terms with long historical use such as electroconvulsive therapy (ECT). We also define commonly used terms-of-the-trade including electrode, lead, anode, and cathode, whose prior use, in varied contexts, can also be a source of confusion. This comprehensive clarification of nomenclature and associated preliminary proposals for standardized terminology can support the development of consensus on efficacy, safety, and regulatory standards.
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Affiliation(s)
- Marom Bikson
- Department of Biomedical Engineering, The City College of the City University of New York, New York, NY, USA.
| | - Zeinab Esmaeilpour
- Department of Biomedical Engineering, The City College of the City University of New York, New York, NY, USA.
| | - Devin Adair
- Department of Biomedical Engineering, The City College of the City University of New York, New York, NY, USA
| | - Greg Kronberg
- Department of Biomedical Engineering, The City College of the City University of New York, New York, NY, USA
| | - William J Tyler
- Arizona State University, School of Biological and Health Systems Engineering, Tempe, AZ, USA
| | - Andrea Antal
- Department of Clinical Neurophysiology, University Medical Center Goettingen, Goettingen, Germany; Institute of Medical Psychology, Medical Faculty, Otto-v.-Guericke University of Magdeburg, Magdeburg, Germany
| | | | - Bernhard A Sabel
- Institute of Medical Psychology, Medical Faculty, Otto-v.-Guericke University of Magdeburg, Magdeburg, Germany
| | - Michael A Nitsche
- Leibniz Research Centre for Working Environment ant Human Factors, Dept. Psychology and Neurosciences, Dortmund, Germany; University Medical Hospital Bergmannsheil, Dept. Neurology, Bochum, Germany
| | - Colleen Loo
- School of Psychiatry & Black Dog Institute, University of New South Wales, Sydney, Australia
| | - Dylan Edwards
- Moss Rehabilitation Research Institute, Philadelphia, PA, USA; Edith Cowan University, Joondalup, Australia
| | | | - Helena Knotkova
- MJHS Institute for Innovation in Palliative Care, New York, NY, USA; Department of Family and Social Medicine, Albert Einstein College of Medicine, The Bronx, NY, USA
| | - Adam J Woods
- Center for Cognitive Aging and Memory, McKnight Brain Institute, Department of Clinical and Health Psychology, University of Florida, Gainesville, FL, USA
| | - Benjamin M Hampstead
- Mental Health Service, VA Ann Arbor Healthcare System, Ann Arbor, MI, USA; Neuropsychology Section, Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Bashar W Badran
- Department of Psychiatry, Medical University of South Carolina, Charleston, SC, USA
| | - Angel V Peterchev
- Department of Psychiatry & Behavioral Sciences, Department of Biomedical Engineering, Department of Electrical & Computer Engineering, Department of Neurosurgery, Duke University, Durham, NC, USA
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Computational comparison of conventional and novel electroconvulsive therapy electrode placements for the treatment of depression. Eur Psychiatry 2019; 60:71-78. [PMID: 31234010 DOI: 10.1016/j.eurpsy.2019.05.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/17/2019] [Accepted: 05/18/2019] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Electroconvulsive therapy (ECT) is a highly effective treatment for severe psychiatric disorders. Despite its high efficacy, the use of ECT would be greater if the risk of cognitive side effects were reduced. Over the last 20 years, developments in ECT technique, including improvements in the dosing methodology and modification of the stimulus waveform, have allowed for improved treatment methods with reduced adverse cognitive effects. There is increasing evidence that the electrode placement is important for orienting the electrical stimulus and therefore modifying treatment outcomes, with potential for further improvement of the placements currently used in ECT. OBJECTIVE We used computational modelling to perform an in-depth examination into regional differences in brain excitation by the ECT stimulus for several lesser known and novel electrode placements, in order to investigate the potential for an electrode placement that may optimise clinical outcomes. METHODS High resolution finite element human head models were generated from MRI scans of three subjects. The models were used to compare regional differences in average electric field (EF) magnitude among a total of thirteen bipolar ECT electrode placements, i.e. three conventional placements as well as ten lesser known and novel placements. RESULTS AND CONCLUSION In this exploratory study on a systemic comparison of thirteen ECT electrode placements, the EF magnitude at regions of interest (ROIs) was highly dependent upon the position of both electrodes, especially the ROIs close to the cortical surface. Compared to conventional right-unilateral (RUL) ECT using a temporo-parietal placement, fronto-parietal and supraorbito-parietal RUL also robustly stimulated brain regions considered important for efficacy, while sparing regions related to cognitive functions, and may be a preferrable approach to the currently used placement for RUL ECT. The simulations also found that regional average EF magnitude varied between individual subjects, due to factors such as head size, and results also depended on the size of the defined ROI.
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Abbott CC, Miller J, Lloyd M, Tohen M. Electroconvulsive therapy electrode placement for bipolar state-related targeted engagement. Int J Bipolar Disord 2019; 7:11. [PMID: 31053985 PMCID: PMC6499851 DOI: 10.1186/s40345-019-0146-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 03/19/2019] [Indexed: 02/06/2023] Open
Abstract
Background Electroconvulsive therapy (ECT) is an effective treatment for all bipolar states. However, ECT remains underutilized, likely stemming from stigma and the risk of neurocognitive impairment. Neuroimaging research has identified state-specific areas of aberrant brain activity that may serve as targets for therapeutic brain stimulation. Electrode placement determines the geometry of the electric field and can be either non-focal (bitemporal) or more focal (right unilateral or bifrontal). Previous research has shown that electrode placement can impact clinical and cognitive outcomes independent of seizure activity. This review critically examines the evidence that focal (unilateral or bifrontal) electrode placements target specific aberrant circuitry in specific bipolar states to optimize clinical outcomes. We hypothesize that optimal target engagement for a bipolar state will be associated with equivalent efficacy relative to bitemporal non-focal stimulation with less neurocognitive impairment. Methods We performed a literature search in the PubMed database. Inclusion criteria included prospective, longitudinal investigations during the ECT series with specific electrode placements within a bipolar state from 2000 to 2018. Results We identified investigations that met our inclusion criteria with bipolar mania (n = 6), depression (n = 6), mixed (n = 3) and catatonia (n = 1) states. These studies included clinical outcomes and several included cognitive outcomes, which were discussed separately. Conclusions While the heterogeneity of the studies makes comparisons difficult, important patterns included the reduced cognitive side effects, faster rate of response, and equivalent efficacy rates of the focal electrode placements (right unilateral and bifrontal) when compared to non-focal (bitemporal) placement. Further avenues for research include more robust cognitive assessments to separate procedure-related and state-related impairment. In addition, future studies could investigate novel electrode configurations with more specific target engagement for different bipolar states.
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Affiliation(s)
- Christopher C Abbott
- Department of Psychiatry & Behavioral Sciences, University of New Mexico Health Sciences Center, University of New Mexico School of Medicine, Albuquerque, NM, 87131, USA.
| | - Jeremy Miller
- Department of Psychiatry & Behavioral Sciences, University of New Mexico Health Sciences Center, University of New Mexico School of Medicine, Albuquerque, NM, 87131, USA
| | - Megan Lloyd
- Department of Psychiatry & Behavioral Sciences, University of New Mexico Health Sciences Center, University of New Mexico School of Medicine, Albuquerque, NM, 87131, USA
| | - Mauricio Tohen
- Department of Psychiatry & Behavioral Sciences, University of New Mexico Health Sciences Center, University of New Mexico School of Medicine, Albuquerque, NM, 87131, USA
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21
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McClintock SM, Kallioniemi E, Martin DM, Kim JU, Weisenbach SL, Abbott CC. A Critical Review and Synthesis of Clinical and Neurocognitive Effects of Noninvasive Neuromodulation Antidepressant Therapies. FOCUS (AMERICAN PSYCHIATRIC PUBLISHING) 2019; 17:18-29. [PMID: 31975955 PMCID: PMC6493152 DOI: 10.1176/appi.focus.20180031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
There is a plethora of current and emerging antidepressant therapies in the psychiatric armamentarium for the treatment of major depressive disorder. Noninvasive neuromodulation therapies are one such therapeutic category; they typically involve the transcranial application of electrical or magnetic stimulation to modulate cortical and subcortical brain activity. Although electroconvulsive therapy (ECT) has been used since the 1930s, with the prevalence of major depressive disorder and treatment-resistant depression (TRD), the past three decades have seen a proliferation of noninvasive neuromodulation antidepressant therapeutic development. The purpose of this critical review was to synthesize information regarding the clinical effects, neurocognitive effects, and possible mechanisms of action of noninvasive neuromodulation therapies, including ECT, transcranial magnetic stimulation, magnetic seizure therapy, and transcranial direct current stimulation. Considerable research has provided substantial information regarding their antidepressant and neurocognitive effects, but their mechanisms of action remain unknown. Although the four therapies vary in how they modulate neurocircuitry and their resultant antidepressant and neurocognitive effects, they are nonetheless useful for patients with acute and chronic major depressive disorder and TRD. Continued research is warranted to inform dosimetry, algorithm for administration, and integration among the noninvasive neuromodulation therapies and with other antidepressant strategies to continue to maximize their safety and antidepressant benefit.
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Affiliation(s)
- Shawn M McClintock
- Neurocognitive Research Laboratory, Department of Psychiatry, University of Texas (UT) Southwestern Medical Center, Dallas, Texas (McClintock, Kallioniemi, Martin); Division of Brain Stimulation and Neurophysiology, Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, North Carolina (McClintock); Black Dog Institute, Sydney, Australia, and School of Psychiatry, University of New South Wales, Sydney (Martin); Department of Psychiatry, University of Utah School of Medicine, Salt Lake City (Kim, Weisenbach); VA Salt Lake City, Mental Health Program (Weisenbach); Department of Psychiatry, University of New Mexico School of Medicine, Albuquerque (Abbott)
| | - Elisa Kallioniemi
- Neurocognitive Research Laboratory, Department of Psychiatry, University of Texas (UT) Southwestern Medical Center, Dallas, Texas (McClintock, Kallioniemi, Martin); Division of Brain Stimulation and Neurophysiology, Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, North Carolina (McClintock); Black Dog Institute, Sydney, Australia, and School of Psychiatry, University of New South Wales, Sydney (Martin); Department of Psychiatry, University of Utah School of Medicine, Salt Lake City (Kim, Weisenbach); VA Salt Lake City, Mental Health Program (Weisenbach); Department of Psychiatry, University of New Mexico School of Medicine, Albuquerque (Abbott)
| | - Donel M Martin
- Neurocognitive Research Laboratory, Department of Psychiatry, University of Texas (UT) Southwestern Medical Center, Dallas, Texas (McClintock, Kallioniemi, Martin); Division of Brain Stimulation and Neurophysiology, Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, North Carolina (McClintock); Black Dog Institute, Sydney, Australia, and School of Psychiatry, University of New South Wales, Sydney (Martin); Department of Psychiatry, University of Utah School of Medicine, Salt Lake City (Kim, Weisenbach); VA Salt Lake City, Mental Health Program (Weisenbach); Department of Psychiatry, University of New Mexico School of Medicine, Albuquerque (Abbott)
| | - Joseph U Kim
- Neurocognitive Research Laboratory, Department of Psychiatry, University of Texas (UT) Southwestern Medical Center, Dallas, Texas (McClintock, Kallioniemi, Martin); Division of Brain Stimulation and Neurophysiology, Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, North Carolina (McClintock); Black Dog Institute, Sydney, Australia, and School of Psychiatry, University of New South Wales, Sydney (Martin); Department of Psychiatry, University of Utah School of Medicine, Salt Lake City (Kim, Weisenbach); VA Salt Lake City, Mental Health Program (Weisenbach); Department of Psychiatry, University of New Mexico School of Medicine, Albuquerque (Abbott)
| | - Sara L Weisenbach
- Neurocognitive Research Laboratory, Department of Psychiatry, University of Texas (UT) Southwestern Medical Center, Dallas, Texas (McClintock, Kallioniemi, Martin); Division of Brain Stimulation and Neurophysiology, Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, North Carolina (McClintock); Black Dog Institute, Sydney, Australia, and School of Psychiatry, University of New South Wales, Sydney (Martin); Department of Psychiatry, University of Utah School of Medicine, Salt Lake City (Kim, Weisenbach); VA Salt Lake City, Mental Health Program (Weisenbach); Department of Psychiatry, University of New Mexico School of Medicine, Albuquerque (Abbott)
| | - Christopher C Abbott
- Neurocognitive Research Laboratory, Department of Psychiatry, University of Texas (UT) Southwestern Medical Center, Dallas, Texas (McClintock, Kallioniemi, Martin); Division of Brain Stimulation and Neurophysiology, Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, North Carolina (McClintock); Black Dog Institute, Sydney, Australia, and School of Psychiatry, University of New South Wales, Sydney (Martin); Department of Psychiatry, University of Utah School of Medicine, Salt Lake City (Kim, Weisenbach); VA Salt Lake City, Mental Health Program (Weisenbach); Department of Psychiatry, University of New Mexico School of Medicine, Albuquerque (Abbott)
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A Blind Module Identification Approach for Predicting Effective Connectivity Within Brain Dynamical Subnetworks. Brain Topogr 2018; 32:28-65. [PMID: 30076488 DOI: 10.1007/s10548-018-0666-3] [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: 11/08/2017] [Accepted: 07/28/2018] [Indexed: 10/28/2022]
Abstract
Model-based network discovery measures, such as the brain effective connectivity, require fitting of generative process models to measurements obtained from key areas across the network. For distributed dynamic phenomena, such as generalized seizures and slow-wave sleep, studying effective connectivity from real-time recordings is significantly complicated since (i) outputs from only a subnetwork can be practically measured, and (ii) exogenous subnetwork inputs are unobservable. Model fitting, therefore, constitutes a challenging blind module identification or model inversion problem for finding both the parameters and the many unknown inputs of the subnetwork. We herein propose a novel estimation framework for identifying nonlinear dynamic subnetworks in the case of slowly-varying, otherwise unknown local inputs. Starting with approximate predictions obtained using Cubature Kalman filtering, residuals of local output predictions are utilized to improve upon local input estimates. The algorithm performance is tested on both simulated and clinical EEG of induced seizures under electroconvulsive therapy (ECT). For the simulated network, the algorithm significantly boosted the estimation accuracy for inputs and connections from noisy EEG. For the clinical data, the algorithm predicted increased subnetwork inputs during the pre-stimulus anesthesia condition. Importantly, it predicted an increased frontocentral connectivity during the generalized seizure that is commensurate with electrode placement and that corroborates the clinical hypothesis of increased frontal focality of therapeutic ECT seizures. The proposed framework can be extended to account for several input configurations and can in principle be applied to study effective connectivity within brain subnetworks defined at the microscale (cortical lamina interaction) or at the macroscale (sensory integration).
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Structural-functional brain changes in depressed patients during and after electroconvulsive therapy. Acta Neuropsychiatr 2018; 30:17-28. [PMID: 27876102 DOI: 10.1017/neu.2016.62] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVES Electroconvulsive therapy (ECT) is a non-pharmacological treatment that is effective in treating severe and treatment-resistant depression. Although the efficacy of ECT has been demonstrated to treat major depressive disorder (MDD), the brain mechanisms underlying this process remain unclear. Structural-functional changes occur with the use of ECT as a treatment for depression based on magnetic resonance imaging (MRI). For this reason, we have tried to identify the changes that were identified by MRI to try to clarify some operating mechanisms of ECT. We focus to brain changes on MRI [structural MRI (sMRI), functional MRI (fMRI) and diffusion tensor imging (DTI)] after ECT. METHODS A systematic search of the international literature was performed using the bibliographic search engines PubMed and Embase. The research focused on papers published up to 30 September 2015. The following Medical Subject Headings (MESH) terms were used: electroconvulsive therapy AND (MRI OR fMRI OR DTI). Papers published in English were included. Four authors searched the database using a predefined strategy to identify potentially eligible studies. RESULTS There were structural changes according to the sMRI performed before and after ECT treatment. These changes do not seem to be entirely due to oedema. This investigation assessed the functional network connectivity associated with the ECT response in MDD. ECT response reverses the relationship from negative to positive between the two pairs of networks. CONCLUSION We found structural-functional changes in MRI post-ECT. Because of the currently limited MRI data on ECT in the literature, it is necessary to conduct further investigations using other MRI technology.
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Youssef NA, Sidhom E. Feasibility, safety, and preliminary efficacy of Low Amplitude Seizure Therapy (LAP-ST): A proof of concept clinical trial in man. J Affect Disord 2017; 222:1-6. [PMID: 28667887 DOI: 10.1016/j.jad.2017.06.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Revised: 05/07/2017] [Accepted: 06/12/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND Current pulse amplitude used in clinical ECT may be higher than needed. Reducing pulse amplitude may improve focality of the electric field and thus cognitive adverse effects. Here we examine the feasibility, safety, and whether Low Pulse Amplitude Seizure Therapy (LAP-ST, 0.5-0.6A) minimizes cognitive adverse effects while retaining efficacy. METHODS Patients with treatment-resistant primary mood (depressive episodes) or psychotic disorders who were clinically indicated to undergo ECT were offered to be enrolled in an open-label study. The study consisted of a full acute course of LAP-ST under standard anesthesia and muscle relaxation. The primary outcome was feasibility of seizure induction. Clinical outcome measures were: time to reorientation (TRO), Mini Mental State Examination, Montgomery Aberg Depression Scale, and Brief Psychiatric Rating Scale, and Clinical Global Impression Scale. RESULTS Twenty-two patients consented for enrollment in the study. LAP-ST was feasible, and all patients had seizures in the first session. Participants had a quick orientation with median TRO of 4.5min. Treatment was efficacious for both depressive and psychotic symptoms. LIMITATIONS Relatively small sample size, non-blinded, and no randomization was performed in this initial proof of concept study. CONCLUSIONS This first human preliminary data of a full course of focal LAP-ST demonstrates that seizure induction is feasible. These results, although preliminary, suggest that the LAP-ST compared to the standard ECT techniques may result in less cognitive side effects, but comparable efficacy. Larger studies are needed to replicate these findings.
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Affiliation(s)
- Nagy A Youssef
- Department of Psychiatry and Health Behavior, Medical College of Georgia at Augusta University, 997 St. Sebastian Way, Augusta, GA 30912, USA.
| | - Emad Sidhom
- The Behman Hospital, Helwan, Cairo, Egypt; Oxford Health NHS Foundation Trust, UK
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Abstract
Amantadine, which was originally developed as an antiviral medication, functions as a dopamine agonist in the central nervous system and consequently is utilized in the treatment of Parkinson disease, drug-induced extrapyramidal reactions, and neuroleptic malignant syndrome. For reasons that are not entirely understood, abrupt changes in amantadine dosage can produce a severe withdrawal syndrome. Existing medical literature describes case reports of amantadine withdrawal leading to delirium, which at times has progressed to neuroleptic malignant syndrome. Amantadine withdrawal may be under-recognized by mental health clinicians, which has the potential to lead to protracted hospital courses and suboptimal outcomes. The goal of this case series is to highlight the role of amantadine withdrawal in the cases of 3 medically complex patients with altered mental status. In the first case, the cognitive side effects of electroconvulsive therapy masked acute amantadine withdrawal in a 64-year-old man with Parkinson disease. In the second case, a 75-year-old depressed patient developed a catatonic delirium when amantadine was discontinued. Finally, a refractory case of neuroleptic malignant syndrome in a 57-year-old patient with schizoaffective disorder rapidly resolved with the reintroduction of outpatient amantadine. These cases highlight several learning objectives regarding amantadine withdrawal syndrome: First, it may be concealed by co-occurring causes of delirium in medically complex patients. Second, its symptoms are likely to be related to a cortical and limbic dopamine shortage, which may be reversed with electroconvulsive therapy or reintroduction of amantadine. Third, its clinical presentation may occur on a spectrum and may include features suggestive of delirium, catatonia, or neuroleptic malignant syndrome.
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Lee WH, Lisanby SH, Laine AF, Peterchev AV. Minimum Electric Field Exposure for Seizure Induction with Electroconvulsive Therapy and Magnetic Seizure Therapy. Neuropsychopharmacology 2017; 42:1192-1200. [PMID: 27934961 PMCID: PMC5437889 DOI: 10.1038/npp.2016.276] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 11/05/2016] [Accepted: 12/04/2016] [Indexed: 11/09/2022]
Abstract
Lowering and individualizing the current amplitude in electroconvulsive therapy (ECT) has been proposed as a means to produce stimulation closer to the neural activation threshold and more focal seizure induction, which could potentially reduce cognitive side effects. However, the effect of current amplitude on the electric field (E-field) in the brain has not been previously linked to the current amplitude threshold for seizure induction. We coupled MRI-based E-field models with amplitude titrations of motor threshold (MT) and seizure threshold (ST) in four nonhuman primates (NHPs) to determine the strength, distribution, and focality of stimulation in the brain for four ECT electrode configurations (bilateral, bifrontal, right-unilateral, and frontomedial) and magnetic seizure therapy (MST) with cap coil on vertex. At the amplitude-titrated ST, the stimulated brain subvolume (23-63%) was significantly less than for conventional ECT with high, fixed current (94-99%). The focality of amplitude-titrated right-unilateral ECT (25%) was comparable to cap coil MST (23%), demonstrating that ECT with a low current amplitude and focal electrode placement can induce seizures with E-field as focal as MST, although these electrode and coil configurations affect differently specific brain regions. Individualizing the current amplitude reduced interindividual variation in the stimulation focality by 40-53% for ECT and 26% for MST, supporting amplitude individualization as a means of dosing especially for ECT. There was an overall significant correlation between the measured amplitude-titrated ST and the prediction of the E-field models, supporting a potential role of these models in dosing of ECT and MST. These findings may guide the development of seizure therapy dosing paradigms with improved risk/benefit ratio.
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Affiliation(s)
- Won H Lee
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Sarah H Lisanby
- Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC, USA,Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
| | - Andrew F Laine
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Angel V Peterchev
- Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC, USA,Department of Biomedical Engineering, Duke University, Durham, NC, USA,Department of Electrical and Computer Engineering, Duke University, Durham, NC, USA,Department of Psychiatry and Behavioral Sciences, Duke University, Box 3620 DUMC, Durham, NC 27710, USA, Tel: 919 684 0383, Fax: 919 681 9962, E-mail:
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Radman T, Lisanby SH. New directions in the rational design of electrical and magnetic seizure therapies: individualized Low Amplitude Seizure Therapy (iLAST) and Magnetic Seizure Therapy (MST). Int Rev Psychiatry 2017; 29:63-78. [PMID: 28430533 DOI: 10.1080/09540261.2017.1304898] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Electroconvulsive therapy remains a key treatment option for severe cases of depression, but undesirable side-effects continue to limit its use. Innovations in the design of novel seizure therapies seek to improve its risk benefit ratio through enhanced control of the focality of stimulation. The design of seizure therapies with increased spatial precision is motivated by avoiding stimulation of deep brain structures implicated in memory retention, including the hippocampus. The development of two innovations in seizure therapy-individualized low-amplitude seizure therapy (iLAST) and magnetic seizure therapy (MST), are detailed. iLAST is a method of seizure titration involving reducing current spread in the brain by titrating current amplitude from the traditional fixed amplitudes. MST, which can be used in conjunction with iLAST dosing methods, involves the use of magnetic stimulation to reduce shunting and spreading of current by the scalp occurring during electrical stimulation. Evidence is presented on the rationale for increasing the focality of ECT in hopes of preserving its effectiveness, while reducing cognitive side-effects. Finally, the value of electric field and neural modelling is illustrated to explain observed clinical effects of modifications to ECT technique, and their utility in the rational design of the next generation of seizure therapies.
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Affiliation(s)
- Thomas Radman
- a National Institute of Mental Health , Bethesda , MD , USA
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McDonald WM. Neuromodulation Treatments for Geriatric Mood and Cognitive Disorders. Am J Geriatr Psychiatry 2016; 24:1130-1141. [PMID: 27889282 DOI: 10.1016/j.jagp.2016.08.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 08/25/2016] [Accepted: 08/26/2016] [Indexed: 01/05/2023]
Abstract
There is increasing evidence for the efficacy of neuromodulation in the treatment of resistant mood disorders and emerging data supporting the use of neuromodulation in cognitive disorders. A significant minority of depressed elders do not respond to pharmacotherapy and/or psychotherapy. This has led clinicians to recommend the increasing use of electroconvulsive therapy (ECT) in the treatment of medication-resistant or life-threatening geriatric depression. Multiple studies have supported the safety and efficacy of ECT in the elderly, yet ECT is associated with side effects including cardiovascular and cognitive side effects. Neuromodulation therapies have the potential for providing effective treatment for treatment-resistant older adults with reduced side effects and this review will outline the risks and benefits of neuromodulation treatment in geriatric psychiatry. There is also emerging evidence of the efficacy of neuromodulation devices in the treatment of cognitive disorders. Pharmacotherapy has been largely ineffective in changing the course of neurodegenerative diseases causing dementia and other treatments are clearly needed. This review will outline the available evidence for neuromodulation in the treatment of mood and cognitive disorders in the elderly.
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Affiliation(s)
- William M McDonald
- Department of Psychiatry and Behavioral Sciences, Emory University, Atlanta, GA, USA.
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Rosenquist PB, McCall WV, Youssef N. Charting the Course of Electroconvulsive Therapy: Where Have We Been and Where Are We Headed? J Psychosoc Nurs Ment Health Serv 2016; 54:39-43. [DOI: 10.3928/02793695-20161208-08] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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30
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Rosenquist PB, McCall WV, Youssef N. Charting the Course of Electroconvulsive Therapy: Where Have We Been and Where Are We Headed? Psychiatr Ann 2016. [DOI: 10.3928/00485713-20160927-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Khurshid KA. Neuromodulation in Neuropsychiatric Disorders. Psychiatr Ann 2016. [DOI: 10.3928/00485713-20161003-02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Expanded Safety and Efficacy Data for a New Method of Performing Electroconvulsive Therapy: Focal Electrically Administered Seizure Therapy. J ECT 2016; 32:197-203. [PMID: 27379790 PMCID: PMC5058644 DOI: 10.1097/yct.0000000000000328] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Electroconvulsive therapy (ECT) is the most rapid and effective antidepressant treatment but with concerns about cognitive adverse effects. A new form of ECT, focal electrically administered seizure therapy (FEAST), was designed to increase the focality of stimulation and better match stimulus parameters with neurophysiology. We recently reported on the safety and feasibility of FEAST in a cohort (n = 17) of depressed patients. We now report on the safety, feasibility, preliminary efficacy, and cognitive effects of FEAST in a new cohort. METHODS Open-label FEAST was administered to 20 depressed adults (6 men; 3 with bipolar disorder; age 49.1 ± 10.6 years). Clinical and cognitive assessments were obtained at baseline and end of course. Time to orientation recovery was assessed at each treatment. Nonresponders switched to conventional ECT. RESULTS Participants tolerated the treatment well with no dropouts. Five patients (25%) transitioned from FEAST to conventional ECT due to inadequate response. After FEAST (mean, 9.3 ± 3.5 sessions; range, 4-14), there was a 58.1% ± 36.0% improvement in Hamilton Rating Scale for Depression scores compared with that in the baseline (P < 0.0001); 13 (65%) of 20 patients met response criteria, and 11 (55%) of 20 met remission criteria. Patients achieved reorientation (4 of 5 items) in 4.4 ± 3.0 minutes (median, 4.5 minutes), timed from eyes opening. There was no deterioration in neuropsychological measures. CONCLUSIONS These findings provide further support for the safety and efficacy of FEAST. The remission and response rates were in the range found using conventional ECT, and the time to reorientation may be quicker. However, without a randomized comparison group, conclusions are tentative.
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Systematic Review of Cognitive Effects of Electroconvulsive Therapy in Late-Life Depression. Am J Geriatr Psychiatry 2016; 24:547-65. [PMID: 27067067 DOI: 10.1016/j.jagp.2016.02.053] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 02/23/2016] [Accepted: 02/25/2016] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Late-life depression (LLD) is known to negatively impact cognition even after remission of mood symptoms. Electroconvulsive therapy (ECT) and newer nonconvulsive electrical and magnetic brain stimulation interventions have been shown to have cognitive effects in patients with neuropsychiatric disorders. METHODS This review systematically assessed the effects of ECT on cognition in LLD. EMBASE, Ovid Medline, and PsycINFO were systematically searched through June 2015. The search was limited to publications from peer-reviewed journals in the English language. RESULTS A total of 5,154 publications was identified; 318 were reviewed in full text, of which 39 publications related to ECT were included. We focused this review only on ECT because evidence on newer interventions was deemed insufficient for a systematic review. This literature suggests increased rates of interictal and postictal cognitive decline with ECT but no long-term (i.e., 6 months or longer) deleterious effects on cognition. Instead, long-term cognitive outcomes with ECT have been reported as either not changed or improved. This literature favors nondominant unilateral ECT over bilateral ECT for cognition. CONCLUSION Published literature on brain stimulation interventions in LLD is mainly limited to ECT. This literature suggests that deleterious effects of ECT in LLD are limited and transient, with better cognitive outcomes with unilateral ECT. There is not enough evidence to fully characterize long-term deleterious effects of ECT or effects of newer brain stimulation techniques on cognition in LLD.
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Lee WH, Lisanby SH, Laine AF, Peterchev AV. Stimulation strength and focality of electroconvulsive therapy and magnetic seizure therapy in a realistic head model. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2016; 2014:410-3. [PMID: 25569983 DOI: 10.1109/embc.2014.6943615] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This study examines the characteristics of the electric field (E-field) induced in the brain by electroconvulsive therapy (ECT) and magnetic seizure therapy (MST). The electric field induced by five ECT electrode configurations (bilateral, bifrontal, right unilateral, focal electrically administered seizure therapy, and frontomedial) as well as an MST coil configuration (circular) was computed in an anatomically realistic finite element model of the human head. We computed the maps of the electric field strength relative to an estimated neural activation threshold, and used them to evaluate the stimulation strength and focality of the various ECT and MST paradigms. The results show that the median ECT stimulation strength in the brain is 3-11 times higher than that for MST, and that the stimulated brain volume is substantially higher with ECT (47-100%) than with MST (21%). Our study provides insight into the observed reduction of cognitive side effects in MST compared to ECT, and supports arguments for lowering ECT current amplitude as a means of curbing its side effects.
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Lee WH, Lisanby SH, Laine AF, Peterchev AV. Comparison of electric field strength and spatial distribution of electroconvulsive therapy and magnetic seizure therapy in a realistic human head model. Eur Psychiatry 2016; 36:55-64. [PMID: 27318858 DOI: 10.1016/j.eurpsy.2016.03.003] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 03/04/2016] [Accepted: 03/06/2016] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND This study examines the strength and spatial distribution of the electric field induced in the brain by electroconvulsive therapy (ECT) and magnetic seizure therapy (MST). METHODS The electric field induced by standard (bilateral, right unilateral, and bifrontal) and experimental (focal electrically administered seizure therapy and frontomedial) ECT electrode configurations as well as a circular MST coil configuration was simulated in an anatomically realistic finite element model of the human head. Maps of the electric field strength relative to an estimated neural activation threshold were used to evaluate the stimulation strength and focality in specific brain regions of interest for these ECT and MST paradigms and various stimulus current amplitudes. RESULTS The standard ECT configurations and current amplitude of 800-900mA produced the strongest overall stimulation with median of 1.8-2.9 times neural activation threshold and more than 94% of the brain volume stimulated at suprathreshold level. All standard ECT electrode placements exposed the hippocampi to suprathreshold electric field, although there were differences across modalities with bilateral and right unilateral producing respectively the strongest and weakest hippocampal stimulation. MST stimulation is up to 9 times weaker compared to conventional ECT, resulting in direct activation of only 21% of the brain. Reducing the stimulus current amplitude can make ECT as focal as MST. CONCLUSIONS The relative differences in electric field strength may be a contributing factor for the cognitive sparing observed with right unilateral compared to bilateral ECT, and MST compared to right unilateral ECT. These simulations could help understand the mechanisms of seizure therapies and develop interventions with superior risk/benefit ratio.
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Affiliation(s)
- W H Lee
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - S H Lisanby
- Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC 27710, USA; Department of Psychology & Neuroscience, Duke University, Durham, NC 27708, USA; Department of Psychiatry, Columbia University, New York, NY 10032, USA; National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA
| | - A F Laine
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - A V Peterchev
- Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC 27710, USA; Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA; Department of Electrical and Computer Engineering, Duke University, Durham, NC 27708, USA.
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Advances in the Application of Electroconvulsive Therapy. Curr Behav Neurosci Rep 2016. [DOI: 10.1007/s40473-016-0074-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Downar J, Blumberger DM, Daskalakis ZJ. The Neural Crossroads of Psychiatric Illness: An Emerging Target for Brain Stimulation. Trends Cogn Sci 2016; 20:107-120. [DOI: 10.1016/j.tics.2015.10.007] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 10/19/2015] [Accepted: 10/28/2015] [Indexed: 12/11/2022]
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NMDA antagonist treatment of depression. Curr Opin Neurobiol 2016; 36:112-7. [DOI: 10.1016/j.conb.2015.11.001] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 11/15/2015] [Accepted: 11/20/2015] [Indexed: 12/16/2022]
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Peterchev AV, Krystal AD, Rosa MA, Lisanby SH. Individualized Low-Amplitude Seizure Therapy: Minimizing Current for Electroconvulsive Therapy and Magnetic Seizure Therapy. Neuropsychopharmacology 2015; 40:2076-84. [PMID: 25920013 PMCID: PMC4613599 DOI: 10.1038/npp.2015.122] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 03/31/2015] [Accepted: 04/24/2015] [Indexed: 11/09/2022]
Abstract
Electroconvulsive therapy (ECT) at conventional current amplitudes (800-900 mA) is highly effective but carries the risk of cognitive side effects. Lowering and individualizing the current amplitude may reduce side effects by virtue of a less intense and more focal electric field exposure in the brain, but this aspect of ECT dosing is largely unexplored. Magnetic seizure therapy (MST) induces a weaker and more focal electric field than ECT; however, the pulse amplitude is not individualized and the minimum amplitude required to induce a seizure is unknown. We titrated the amplitude of long stimulus trains (500 pulses) as a means of determining the minimum current amplitude required to induce a seizure with ECT (bilateral, right unilateral, bifrontal, and frontomedial electrode placements) and MST (round coil on vertex) in nonhuman primates. Furthermore, we investigated a novel method of predicting this amplitude-titrated seizure threshold (ST) by a non-convulsive measurement of motor threshold (MT) using single pulses delivered through the ECT electrodes or MST coil. Average STs were substantially lower than conventional pulse amplitudes (112-174 mA for ECT and 37.4% of maximum device amplitude for MST). ST was more variable in ECT than in MST. MT explained 63% of the ST variance and is hence the strongest known predictor of ST. These results indicate that seizures can be induced with less intense electric fields than conventional ECT that may be safer; efficacy and side effects should be evaluated in clinical studies. MT measurement could be a faster and safer alternative to empirical ST titration for ECT and MST.
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Affiliation(s)
- Angel V Peterchev
- Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC, USA
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
- Department of Electrical and Computer Engineering, Duke University, Durham, NC, USA
| | - Andrew D Krystal
- Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC, USA
| | - Moacyr A Rosa
- Institute for Advanced Research in Neurostimulation, São Paulo, Brazil
| | - Sarah H Lisanby
- Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC, USA
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
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Sackeim HA. Is the Seizure an Unnecessary Component of Electroconvulsive Therapy? A Startling Possibility. Brain Stimul 2015; 8:851-4. [PMID: 26358486 DOI: 10.1016/j.brs.2015.07.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 07/09/2015] [Accepted: 07/10/2015] [Indexed: 10/23/2022] Open
Affiliation(s)
- Harold A Sackeim
- Department of Psychiatry, College of Physicians and Surgeons, Columbia University, 2124 Moselem Springs Road, Fleetwood, PA 19522, USA; Department of Radiology, College of Physicians and Surgeons, Columbia University, 2124 Moselem Springs Road, Fleetwood, PA 19522, USA.
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42
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Weiner RD. Introduction to Convulsive Therapy. Brain Stimul 2015. [DOI: 10.1002/9781118568323.ch5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Deng ZD, McClintock SM, Oey NE, Luber B, Lisanby SH. Neuromodulation for mood and memory: from the engineering bench to the patient bedside. Curr Opin Neurobiol 2015; 30:38-43. [PMID: 25222617 PMCID: PMC4342851 DOI: 10.1016/j.conb.2014.08.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 08/29/2014] [Accepted: 08/29/2014] [Indexed: 12/28/2022]
Abstract
Brain stimulation, in the form of electroconvulsive therapy (ECT), has long been a gold standard treatment for depression, but today, the field of neuromodulation is rapidly changing with the advent of newer and more precise tools to alter neuroplasticity and to treat brain-based disorders. Now there are new means to induce focal seizures, as with magnetic seizure therapy (MST), or modifications to ECT. There are also surgical approaches to target brain circuits via implanted stimulators placed in the brain or on cranial nerves. Finally, there are noninvasive subconvulsive approaches for the transcranial application of either electric or magnetic fields. Collectively, these tools have transformed the face of neurotherapeutics and informed our understanding of the brain basis of complex neurobehavioral conditions.
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Affiliation(s)
- Zhi-De Deng
- Division of Brain Stimulation and Neurophysiology, Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA
| | - Shawn M McClintock
- Division of Brain Stimulation and Neurophysiology, Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA; Department of Psychology and Neuroscience, Duke University, Durham, NC, USA; Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Nicodemus E Oey
- Duke-National University of Singapore Graduate Medical School, Singapore
| | - Bruce Luber
- Division of Brain Stimulation and Neurophysiology, Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA; Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
| | - Sarah H Lisanby
- Division of Brain Stimulation and Neurophysiology, Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA; Department of Psychology and Neuroscience, Duke University, Durham, NC, USA.
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44
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Deng ZD, Lisanby SH, Peterchev AV. Effect of anatomical variability on electric field characteristics of electroconvulsive therapy and magnetic seizure therapy: a parametric modeling study. IEEE Trans Neural Syst Rehabil Eng 2015; 23:22-31. [PMID: 25055384 PMCID: PMC4289667 DOI: 10.1109/tnsre.2014.2339014] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Electroconvulsive therapy (ECT) and magnetic seizure therapy (MST) are conventionally applied with a fixed stimulus current amplitude, which may result in differences in the neural stimulation strength and focality across patients due to interindividual anatomical variability. The objective of this study is to quantify the effect of head anatomical variability associated with age, sex, and individual differences on the induced electric field characteristics in ECT and MST. Six stimulation modalities were modeled including bilateral and right unilateral ECT, focal electrically administered seizure therapy (FEAST), and MST with circular, cap, and double-cone coils. The electric field was computed using the finite element method in a parameterized spherical head model representing the variability in the general population. Head tissue layer thicknesses and conductivities were varied to examine the impact of interindividual anatomical differences on the stimulation strength, depth, and focality. Skull conductivity most strongly affects the ECT electric field, whereas the MST electric field is independent of tissue conductivity variation in this model but is markedly affected by differences in head diameter. Focal ECT electrode configurations such as FEAST is more sensitive to anatomical variability than that of less focal paradigms such as BL ECT. In MST, anatomical variability has stronger influence on the electric field of the cap and circular coils compared to the double-cone coil, possibly due to the more superficial field of the former. The variability of the ECT and MST electric fields due to anatomical differences should be considered in the interpretation of existing studies and in efforts to improve dosing approaches for better control of stimulation strength and focality across patients, such as individualization of the current amplitude. The conventional approach to individualizing dosage by titrating the number of pulses cannot compensate for differences in the spatial extent of stimulation that result from anatomical variability.
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Affiliation(s)
- Zhi-De Deng
- Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC 27710, USA
| | - Sarah H. Lisanby
- Departments of Psychiatry and Behavioral Sciences, and Neuroscience, Duke University, Durham, NC, 27710 USA ()
| | - Angel V. Peterchev
- Departments of Psychiatry and Behavioral Sciences, Biomedical Engineering, and Electrical and Computer Engineering, Duke University, Durham, NC 27710, USA ()
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Williams NR, Taylor JJ, Kerns S, Short EB, Kantor EM, George MS. Interventional psychiatry: why now? J Clin Psychiatry 2014; 75:895-7. [PMID: 25191910 PMCID: PMC4221242 DOI: 10.4088/jcp.13l08745] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Interventional psychiatry offers substantial therapeutic benefits in some neuropsychiatric disorders and enormous potential in treating others. However, as interventional diagnostics and therapeutics require specialized knowledge and skill foreign to many psychiatrists, the emerging subspecialty of interventional psychiatry must be more formally integrated into the continuum of psychiatric training to ensure both safe application and continued growth. By establishing training paradigms for interventional psychiatry, academic medical centers can help fill this knowledge gap. The cultivation of a properly trained cohort of interventional psychiatrists will better meet the challenges of treatment-resistant psychiatric illness through safe and ethical practice, while facilitating a more informed development and integration of novel neuromodulation techniques.
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Affiliation(s)
- Nolan R. Williams
- Department of Psychiatry, Medical University of South Carolina,Department of Neurosciences, Medical University of South Carolina
| | - Joseph J. Taylor
- Department of Psychiatry, Medical University of South Carolina,Department of Neurosciences, Medical University of South Carolina
| | - Suzanne Kerns
- Department of Psychiatry, Medical University of South Carolina
| | - E. Baron Short
- Department of Psychiatry, Medical University of South Carolina
| | | | - Mark S. George
- Department of Psychiatry, Medical University of South Carolina,Department of Neurosciences, Medical University of South Carolina,Ralph H. Johnson VA Medical Center, Charleston, SC
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Abstract
For many patients with neuropsychiatric illnesses, standard psychiatric treatments with mono or combination pharmacotherapy, psychotherapy, and transcranial magnetic stimulation are ineffective. For these patients with treatment-resistant neuropsychiatric illnesses, a main therapeutic option is electroconvulsive therapy (ECT). Decades of research have found ECT to be highly effective; however, it can also result in adverse neurocognitive effects. Specifically, ECT results in disorientation after each session, anterograde amnesia for recently learned information, and retrograde amnesia for previously learned information. Unfortunately, the neurocognitive effects and underlying mechanisms of action of ECT remain poorly understood. The purpose of this paper was to synthesize the multiple moderating and mediating factors that are thought to underlie the neurocognitive effects of ECT into a coherent model. Such factors include demographic and neuropsychological characteristics, neuropsychiatric symptoms, ECT technical parameters, and ECT-associated neurophysiological changes. Future research is warranted to evaluate and test this model, so that these findings may support the development of more refined clinical seizure therapy delivery approaches and efficacious cognitive remediation strategies to improve the use of this important and widely used intervention tool for neuropsychiatric diseases.
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Chahine G, Short B, Spicer K, Schmidt M, Burns C, Atoui M, George MS, Sackeim HA, Nahas Z. Regional Cerebral Blood Flow Changes Associated With Focal Electrically Administered Seizure Therapy (FEAST). Brain Stimul 2014; 7:483-5. [DOI: 10.1016/j.brs.2014.02.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2013] [Revised: 02/17/2014] [Accepted: 02/18/2014] [Indexed: 11/28/2022] Open
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Williams NR, Taylor JJ, Snipes JM, Short EB, Kantor EM, George MS. Interventional psychiatry: how should psychiatric educators incorporate neuromodulation into training? ACADEMIC PSYCHIATRY : THE JOURNAL OF THE AMERICAN ASSOCIATION OF DIRECTORS OF PSYCHIATRIC RESIDENCY TRAINING AND THE ASSOCIATION FOR ACADEMIC PSYCHIATRY 2014; 38:168-76. [PMID: 24554501 PMCID: PMC4021584 DOI: 10.1007/s40596-014-0050-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2013] [Accepted: 11/04/2013] [Indexed: 05/02/2023]
Abstract
OBJECTIVE Interventional psychiatry is an emerging subspecialty that uses a variety of procedural neuromodulation techniques in the context of an electrocircuit-based view of mental dysfunction as proximal causes for psychiatric diseases. METHODS The authors propose the development of an interventional psychiatry-training paradigm analogous to those found in cardiology and neurology. RESULTS The proposed comprehensive training in interventional psychiatry would include didactics in the theory, proposed mechanisms, and delivery of invasive and noninvasive brain stimulation. CONCLUSIONS The development and refinement of this subspecialty would facilitate safe, effective growth in the field of brain stimulation by certified and credentialed practitioners within the field of psychiatry while also potentially improving the efficacy of current treatments.
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Deng ZD, Lisanby SH, Peterchev AV. Controlling stimulation strength and focality in electroconvulsive therapy via current amplitude and electrode size and spacing: comparison with magnetic seizure therapy. J ECT 2013; 29:325-35. [PMID: 24263276 PMCID: PMC3905244 DOI: 10.1097/yct.10.1097/yct.0b013e3182a4b4a7] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Understanding the relationship between the stimulus parameters of electroconvulsive therapy (ECT) and the electric field characteristics could guide studies on improving risk/benefit ratio. We aimed to determine the effect of current amplitude and electrode size and spacing on the ECT electric field characteristics, compare ECT focality with magnetic seizure therapy (MST), and evaluate stimulus individualization by current amplitude adjustment. METHODS Electroconvulsive therapy and double-cone-coil MST electric field was simulated in a 5-shell spherical human head model. A range of ECT electrode diameters (2-5 cm), spacing (1-25 cm), and current amplitudes (0-900 mA) was explored. The head model parameters were varied to examine the stimulus current adjustment required to compensate for interindividual anatomical differences. RESULTS By reducing the electrode size, spacing, and current, the ECT electric field can be more focal and superficial without increasing scalp current density. By appropriately adjusting the electrode configuration and current, the ECT electric field characteristics can be made to approximate those of MST within 15%. Most electric field characteristics in ECT are more sensitive to head anatomy variation than in MST, especially for close electrode spacing. Nevertheless, ECT current amplitude adjustment of less than 70% can compensate for interindividual anatomical variability. CONCLUSIONS The strength and focality of ECT can be varied over a wide range by adjusting the electrode size, spacing, and current. If desirable, ECT can be made as focal as MST while using simpler stimulation equipment. Current amplitude individualization can compensate for interindividual anatomical variability.
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Affiliation(s)
- Zhi-De Deng
- Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC, USA
- Department of Electrical Engineering, Columbia University, New York, NY, USA
| | - Sarah H. Lisanby
- Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC, USA
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
| | - Angel V. Peterchev
- Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC, USA
- Department of Biomedical Engineering and Department of Electrical and Computer Engineering, Duke University, Durham, NC, USA
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Blumberger DM, Mulsant BH, Daskalakis ZJ. What is the role of brain stimulation therapies in the treatment of depression? Curr Psychiatry Rep 2013; 15:368. [PMID: 23712719 DOI: 10.1007/s11920-013-0368-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Brain stimulation therapies have demonstrated efficacy in the treatment of depression and treatment-resistant depression (TRD). Non-invasive brain stimulation in the treatment of depression has grown substantially due to their favorable adverse effect profiles. The role of transcranial direct current stimulation in TRD is unclear, but emerging data suggests that it may be an effective add-on treatment. Repetitive transcranial magnetic stimulation has demonstrated efficacy in TRD that is supported by several multicenter randomized controlled trials. Though, vagus nerve stimulation has been found to be effective in some studies, sham controlled studies were equivocal. Electroconvulsive therapy (ECT) is a well-established brain stimulation treatment for severe depression and TRD, yet stigma and cognitive adverse effects limit its wider use. Magnetic seizure therapy has a more favorable cognitive adverse effect profile; however, equivalent efficacy to ECT needs to be established. Deep brain stimulation may play a role in severe TRD and controlled trials are now underway.
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Affiliation(s)
- Daniel M Blumberger
- Campbell Family Research Institute, Centre for Addiction and Mental Health, Department of Psychiatry, University of Toronto, 1001 Queen St. W. Unit 4, Room 115, Toronto, ON M6J 1H4, Canada.
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