1
|
Khatri UU, Pulliam K, Manesiya M, Cortez MV, Millán JDR, Hussain SJ. Personalized whole-brain activity patterns predict human corticospinal tract activation in real-time. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.08.15.607985. [PMID: 39229238 PMCID: PMC11370398 DOI: 10.1101/2024.08.15.607985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 09/05/2024]
Abstract
BACKGROUND Transcranial magnetic stimulation (TMS) interventions could feasibly treat stroke-related motor impairments, but their effects are highly variable. Brain state-dependent TMS approaches are a promising solution to this problem, but inter-individual variation in lesion location and oscillatory dynamics can make translating them to the poststroke brain challenging. Personalized brain state-dependent approaches specifically designed to address these challenges are therefore needed. METHODS As a first step towards this goal, we tested a novel machine learning-based EEG-TMS system that identifies personalized brain activity patterns reflecting strong and weak corticospinal tract (CST) output (strong and weak CST states) in healthy adults in real-time. Participants completed a single-session study that included the acquisition of a TMS-EEG-EMG training dataset, personalized classifier training, and real-time EEG-informed single pulse TMS during classifier-predicted personalized CST states. RESULTS MEP amplitudes elicited in real-time during personalized strong CST states were significantly larger than those elicited during personalized weak and random CST states. MEP amplitudes elicited in real-time during personalized strong CST states were also significantly less variable than those elicited during personalized weak CST states. Personalized CST states lasted for ~1-2 seconds at a time and ~1 second elapsed between consecutive similar states. Individual participants exhibited unique differences in spectro-spatial EEG patterns between personalized strong and weak CST states. CONCLUSION Our results show for the first time that personalized whole-brain EEG activity patterns predict CST activation in real-time in healthy humans. These findings represent a pivotal step towards using personalized brain state-dependent TMS interventions to promote poststroke CST function.
Collapse
Affiliation(s)
- Uttara U Khatri
- Movement and Cognitive Rehabilitation Science Program, Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX, USA
| | - Kristen Pulliam
- Movement and Cognitive Rehabilitation Science Program, Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX, USA
| | - Muskan Manesiya
- Movement and Cognitive Rehabilitation Science Program, Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX, USA
| | - Melanie Vieyra Cortez
- Movement and Cognitive Rehabilitation Science Program, Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX, USA
| | - José Del R Millán
- Chandra Family Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX, USA
- Department of Neurology, The University of Texas at Austin, Austin, TX, USA
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, USA
| | - Sara J Hussain
- Movement and Cognitive Rehabilitation Science Program, Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX, USA
| |
Collapse
|
2
|
Boscutti A, Murphy N, Cho R, Selvaraj S. Noninvasive Brain Stimulation Techniques for Treatment-Resistant Depression: Transcranial Magnetic Stimulation and Transcranial Direct Current Stimulation. Psychiatr Clin North Am 2023; 46:307-329. [PMID: 37149347 DOI: 10.1016/j.psc.2023.02.005] [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] [Indexed: 05/08/2023]
Abstract
Transcranial magnetic stimulation is a safe, effective, and well-tolerated intervention for depression; it is currently approved for treatment-resistant depression. This article summarizes the mechanism of action, evidence of clinical efficacy, and the clinical aspects of this intervention, including patient evaluation, stimulation parameters selection, and safety considerations. Transcranial direct current stimulation is another neuromodulation treatment for depression; although promising, the technique is not currently approved for clinical use in the United States. The final section outlines the open challenges and future directions of the field.
Collapse
Affiliation(s)
- Andrea Boscutti
- Louis. A. Faillace, MD, Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX, USA; Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Nicholas Murphy
- Baylor College of Medicine, Menninger Department of Psychiatry and Behavioral Sciences, Houston, TX, USA; The Menninger Clinic, Houston, TX, USA
| | - Raymond Cho
- Baylor College of Medicine, Menninger Department of Psychiatry and Behavioral Sciences, Houston, TX, USA; The Menninger Clinic, Houston, TX, USA
| | - Sudhakar Selvaraj
- Louis. A. Faillace, MD, Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX, USA.
| |
Collapse
|
3
|
Transcranial Magnetic Stimulation in Obsessive-Compulsive Disorder. Psychiatr Clin North Am 2023; 46:133-166. [PMID: 36740349 DOI: 10.1016/j.psc.2022.10.003] [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] [Indexed: 12/27/2022]
Abstract
Obsessive-compulsive disorder (OCD) patients need novel therapeutic interventions since most experience residual symptoms despite treatment. Converging evidence suggest that OCD involves dysfunction of limbic cortico-striato-thalamo-cortical loops, including the medial prefrontal cortex (mPFC) and dorsal anterior cingulate cortex (dACC), that tends to normalize with successful treatment. Recently, three repetitive transcranial magnetic stimulation (rTMS) coils were FDA-cleared for treatment-refractory OCD. This review presents on-label and off-label clinical evidence and relevant physical characteristics of the three coils. The Deep TMS™ H7 Coil studies' point to efficacy of mPFC-dACC stimulation, while no clear target stems from the small heterogenous D-B80 and figure-8 coils studies.
Collapse
|
4
|
Zangen A, Zibman S, Tendler A, Barnea-Ygael N, Alyagon U, Blumberger DM, Grammer G, Shalev H, Gulevski T, Vapnik T, Bystritsky A, Filipčić I, Feifel D, Stein A, Deutsch F, Roth Y, George MS. Pursuing personalized medicine for depression by targeting the lateral or medial prefrontal cortex with Deep TMS. JCI Insight 2023; 8:165271. [PMID: 36692954 PMCID: PMC9977507 DOI: 10.1172/jci.insight.165271] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 01/05/2023] [Indexed: 01/25/2023] Open
Abstract
BACKGROUNDMajor depressive disorder (MDD) can benefit from novel interventions and personalization. Deep transcranial magnetic stimulation (Deep TMS) targeting the lateral prefrontal cortex (LPFC) using the H1 coil was FDA cleared for treatment of MDD. However, recent preliminary data indicate that targeting the medial prefrontal cortex (MPFC) using the H7 coil might induce outcomes that are as good or even better. Here, we explored whether Deep TMS targeting the MPFC is noninferior to targeting the LPFC and whether electrophysiological or clinical markers for patient selection can be identified.METHODSThe present prospective, multicenter, randomized study enrolled 169 patients with MDD for whom antidepressants failed in the current episode. Patients were randomized to receive 24 Deep TMS sessions over 6 weeks, using either the H1 coil or the H7 coil. The primary efficacy endpoint was the change from baseline to week 6 in Hamilton Depression Rating Scale scores.RESULTSClinical efficacy and safety profiles were similar and not significantly different between groups, with response rates of 60.9% for the H1 coil and 64.2% for the H7 coil. Moreover, brain activity measured by EEG during the first treatment session correlated with clinical outcomes in a coil-specific manner, and a cluster of baseline clinical symptoms was found to potentially distinguish between patients who can benefit from each Deep TMS target.CONCLUSIONThis study provides a treatment option for MDD, using the H7 coil, and initial guidance to differentiate between patients likely to respond to LPFC versus MPFC stimulation targets, which require further validation studies.TRIAL REGISTRATIONClinicalTrials.gov NCT03012724.FUNDINGBrainsWay Ltd.
Collapse
Affiliation(s)
| | - Samuel Zibman
- Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Aron Tendler
- Advanced Mental Health Care Inc., Royal Palm Beach, Florida, USA
| | | | - Uri Alyagon
- Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Daniel M Blumberger
- Temerty Centre for Therapeutic Brain Intervention, Centre for Addiction and Mental Health, and Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | | | - Hadar Shalev
- Ben-Gurion University of the Negev, Beer-Sheva, Israel.,Department of Psychiatry, Soroka Medical Center, Beer-Sheva, Israel
| | | | - Tanya Vapnik
- Pacific Institute of Medical Research, Los Angeles, California, USA
| | | | - Igor Filipčić
- Psychiatric Hospital Sveti Ivan and School of Medicine, University of Zagreb, Zagreb, Croatia
| | - David Feifel
- Kadima Neuropsychiatry Institute, La Jolla, California, USA
| | - Ahava Stein
- A. Stein - Regulatory Affairs Consulting Ltd, Kfar Saba, Israel
| | | | - Yiftach Roth
- Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Mark S George
- Medical University of South Carolina, Columbia, South Carolina, USA.,Ralph H. Johnson VA Medical Center, Charleston, South Carolina, USA
| |
Collapse
|
5
|
Harmelech T, Roth Y, Tendler A. Deep TMS H7 Coil: Features, Applications & Future. Expert Rev Med Devices 2021; 18:1133-1144. [PMID: 34878347 DOI: 10.1080/17434440.2021.2013803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Transcranial magnetic stimulation (TMS) uses magnetic pulses to induce electrical current in the underlying neuronal tissue. A variety of TMS coils exist on the market, differing primarily in configuration, orientation, and flexibility of the wire windings of the coil. Deep TMSTM utilizes H-Coils, flexible coils with different configurations for stimulating different brain regions implicated in different neuropsychiatric disorders. The H7 Coil, designed to target primarily the medial prefrontal cortex and the anterior cingulate cortex, is FDA-cleared for obsessive-compulsive disorder (OCD). It was chosen as the focus of this review since it recently showed promise in various neuropsychiatric populations in addition to growing understanding of its mechanism of action (MOA). AREAS COVERED Here we assembled all peer-reviewed publications on the H7 Coil to showcase its efficacy in: (a) various OCD patient populations (e.g., different degrees of symptom severity, treatment resistance, comorbidities) (b) other neuropsychiatric populations (e.g., addiction, major depressive disorder and autism spectrum disorder). EXPERT OPINION While substantial evidence pertaining to the H7 Coil's efficacy as well as its MOA has accumulated, much work remains. In the final section of this review, we highlight areas of ongoing and future research that will further elucidate the coil's MOA as well as its full efficacy potential.
Collapse
Affiliation(s)
| | - Yiftach Roth
- BrainsWay Ltd.,Department of Life Sciences, Ben Gurion University of the Negev, Beer Sheva, Israel
| | - Aron Tendler
- BrainsWay Ltd.,Department of Life Sciences, Ben Gurion University of the Negev, Beer Sheva, Israel.,Advanced Mental Health Care Inc, FL, USA
| |
Collapse
|