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Miron JP, Voetterl H, Fox L, Hyde M, Mansouri F, Dees S, Zhou R, Sheen J, Desbeaumes Jodoin V, Mir-Moghtadaei A, Blumberger DM, Daskalakis ZJ, Vila-Rodriguez F, Downar J. Optimized repetitive transcranial magnetic stimulation techniques for the treatment of major depression: A proof of concept study. Psychiatry Res 2021; 298:113790. [PMID: 33581379 DOI: 10.1016/j.psychres.2021.113790] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 02/03/2021] [Indexed: 01/29/2023]
Abstract
Although effective in major depressive disorder (MDD), repetitive transcranial magnetic stimulation (rTMS) is costly and complex, limiting accessibility. To address this, we tested the feasibility of novel rTMS techniques with cost-saving opportunities, such as an open-room setting, large non-focal parabolic coils, and custom-built coil arms. We employed a low-frequency (LF) 1 Hz stimulation protocol (360 pulses per session), delivered on the most affordable FDA-approved device. MDD participants received an initial accelerated rTMS course (arTMS) of 6 sessions/day over 5 days (30 total), followed by a tapering course of daily sessions (up to 25) to decrease the odds of relapse. The self-reported Beck Depression Inventory II (BDI-II) was used to measure severity of depression. Forty-eight (48) patients completed the arTMS course. No serious adverse events occurred, and all patients reported manageable pain levels. Response and remission rates were 35.4% and 27.1% on the BDI-II, respectively, at the end of the tapering course. Repeated measures ANOVA showed significant changes of BDI-II scores over time. Even though our protocol will require further improvements, some of the concepts we introduced here could help guide the design of future trials aiming at increasing accessibility to rTMS.
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Affiliation(s)
- Jean-Philippe Miron
- Krembil Research Institute, University Health Network, Toronto, ON, Canada; Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, ON, Canada; Department of Psychiatry, Faculty of Medicine, University of Toronto, Toronto, ON, Canada; Centre Hospitalier de l'Université de Montréal (CHUM), Centre de Recherche du CHUM (CRCHUM) et Département de Psychiatrie, Faculté de Médecine, Université de Montréal, Montréal, QC, Canada.
| | - Helena Voetterl
- Krembil Research Institute, University Health Network, Toronto, ON, Canada; Department of Cognitive Neuroscience, Maastricht University, Maastricht, Limburg, Netherland
| | - Linsay Fox
- Krembil Research Institute, University Health Network, Toronto, ON, Canada
| | - Molly Hyde
- Krembil Research Institute, University Health Network, Toronto, ON, Canada
| | - Farrokh Mansouri
- Krembil Research Institute, University Health Network, Toronto, ON, Canada; Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Sinjin Dees
- Faculty of Engineering, McMaster University, Hamilton, ON, Canada
| | - Ryan Zhou
- Krembil Research Institute, University Health Network, Toronto, ON, Canada
| | - Jack Sheen
- Krembil Research Institute, University Health Network, Toronto, ON, Canada; Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Véronique Desbeaumes Jodoin
- Centre Hospitalier de l'Université de Montréal (CHUM), Centre de Recherche du CHUM (CRCHUM) et Département de Psychiatrie, Faculté de Médecine, Université de Montréal, Montréal, QC, Canada
| | - Arsalan Mir-Moghtadaei
- Krembil Research Institute, University Health Network, Toronto, ON, Canada; Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Daniel M Blumberger
- Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, ON, Canada; Department of Psychiatry, Faculty of Medicine, University of Toronto, Toronto, ON, Canada; Temerty Centre for Therapeutic Brain Intervention at the Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Zafiris J Daskalakis
- Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, ON, Canada; Department of Psychiatry, Faculty of Medicine, University of Toronto, Toronto, ON, Canada; Temerty Centre for Therapeutic Brain Intervention at the Centre for Addiction and Mental Health, Toronto, ON, Canada; Department of Psychiatry, University of California San Diego, San Diego, California, United States
| | - Fidel Vila-Rodriguez
- Non-Invasive Neurostimulation Therapies Laboratory, Department of Psychiatry, University of British Columbia, Vancouver, BC, Canada
| | - Jonathan Downar
- Krembil Research Institute, University Health Network, Toronto, ON, Canada; Institute of Medical Science, Faculty of Medicine, University of Toronto, Toronto, ON, Canada; Department of Psychiatry, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
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