Repetitive Transcranial Magnetic Stimulation for Depression and Posttraumatic Stress Disorder in Veterans With Mild Traumatic Brain Injury
Open accessAbstract
OBJECTIVES: Mild traumatic brain injury (mTBI) is a signature injury of military conflicts and is prevalent in veterans with major depressive disorder (MDD) and posttraumatic stress disorder (PTSD). Although therapeutic transcranial magnetic stimulation (TMS) can reduce symptoms of depression and PTSD, whether traumatic brain injury (TBI) affects TMS responsiveness is not yet known. We hypothesized mTBI would be associated with higher pretreatment symptom burden and poorer TMS response. MATERIALS AND METHODS: We investigated a registry of veterans (N = 770) who received TMS for depression across the US Veterans Affairs system. Of these, 665 (86.4%) had data on TBI and lifetime number of head injuries while 658 had complete data related to depression outcomes. Depression symptoms were assessed using the nine-item Patient Health Questionnaire and PTSD symptoms using the PTSD Checklist for DSM-5. Linear mixed effects models and t-tests evaluated whether head injuries predicted symptom severity before treatment, and how TBI status affected clinical TMS outcomes. RESULTS: Of the 658 veterans included, 337 (50.7%) reported previous mTBI, with a mean of three head injuries (range 1-20). TBI status did not predict depressive symptom severity or TMS-associated changes in depression (all p's > 0.1). TBI status was associated with a modest attenuation of TMS-associated improvement in PTSD (in patients with PTSD Checklist for DSM-5 scores > 33). There was no correlation between the number of head injuries and TMS response (p > 0.1). CONCLUSIONS: Contrary to our hypothesis, presence of mTBI did not meaningfully change TMS outcomes. Veterans with mTBI had greater PTSD symptoms, yet neither TBI status nor cumulative head injuries reduced TMS effectiveness. Limitations include those inherent to retrospective registry studies and self-reporting. Although these findings are contrary to our hypotheses, they support the safety and effectiveness of TMS for MDD and PTSD in patients who have comorbid mTBI.
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TMS has been shown to be effective in treating several TBI sequelae, including depression.
“It was later shown to be effective in treating several TBI sequelae, including depression [22].”
From Frontal Pole Neuromodulation for Impulsivity and Suicidality in Veterans With Mild Traumatic Brain Injury and Common Co-Occurring Mental Health Conditions: Protocol for a Pilot Randomized Controlled Trial (2024) · cites this paper as [22]
The Conclusions report real-world effectiveness of TMS for depression and PTSD in patients with mild TBI. The claim broadens this to TBI generally; the Introduction also describes mixed results for other post-TBI symptoms, including headache and cognitive symptoms. (LLM, conf=0.84)
Experimental — accuracy not yet measuredTMS also improves PTSD symptoms among those with co-occurring mTBI.
“TMS also improves PTSD symptoms among those with co-occurring mTBI [22,27].”
In military and veteran populations, benefit has been reported in individuals with co-occurring PTSD, depression, and mild TBI.
“in military and veteran populations, benefit has been reported in individuals with co-occurring PtsD, depression, and mild tBi”
TBI status has not been shown to eliminate symptomatic response to TMS.
“and tBi status has not been shown to eliminate symptomatic response”
The right frontal pole anatomical location is easily identifiable using anatomical landmarks and correlates with electrode FP2 on a 10-20 EEG, a region overlapping with the right VMPFC.
“The anatomical location is easily identifiable using anatomical landmarks and correlates with electrode frontal polar cortex (FP; FP2) on a 10 to 20 electroencephalogram, a region overlapping with the right VMPFC [22,63,82].”
From Frontal Pole Neuromodulation for Impulsivity and Suicidality in Veterans With Mild Traumatic Brain Injury and Common Co-Occurring Mental Health Conditions: Protocol for a Pilot Randomized Controlled Trial (2024) · cites this paper as [22]
The Materials and Methods section describes TMS delivered primarily to the left dorsolateral prefrontal cortex, but does not describe how to locate the right frontal pole. Searches for FP2, VMPFC, and anatomical landmarks found no passage establishing the claimed EEG correspondence or overlap. (LLM, conf=0.76)
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- Authors
- Philip, N. S., Ramanathan, D., Gamboa, B., Brennan, M. C., Kozel, F. A., Lazzeroni, L., & Madore, M. R.
- Affiliations
- Brown University (US)
- University of California San Diego (US)
- VA Palo Alto Health Care System (US)
- Florida State University (US)
- Corresponding author
- Madore, Michelle R.
- Venue
- Neuromodulation: Technology at the Neural Interface
- Publisher
- Elsevier BV
- Published
- 2023-06
- Volume
- 26
- Issue
- 4
- Pages
- 878-884
- ISSN
- 1094-7159 (ISSN-L)
- PMC
- PMC10765323
- OpenAlex
- W4318767338
- Cited by
- 21
- References
- 40
- Citations by year
- 2026: 6 · 2025: 6 · 2024: 8 · 2023: 1
- FWCI
- 2.16
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Neuromodulation Technology at the Neural Interface (publishedVersion, cc-by-nc-nd)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- U.S. Department of Veterans Affairs (I01CX002088, I50RX002864)
- National Institutes of Health
- National Institute of Mental Health (R01MH120126, MH120126)
- Topics
- Life Sciences › Neuroscience › Neurology › Transcranial Magnetic Stimulation Studies
- Health Sciences › Medicine › Epidemiology › Traumatic Brain Injury Research
- Health Sciences › Medicine › Psychiatry and Mental health › Electroconvulsive Therapy Studies
- Keywords
- repetitive transcranial magnetic stimulation, mild traumatic brain injury, major depressive disorder, post-traumatic stress disorder, veterans, traumatic brain injury, treatment response, comorbidities, PCL-5, Patient Health Questionnaire
- MeSH terms
- Brain Injuries, Traumatic, Brain Concussion, Depression, Depressive Disorder, Major, Major Depressive Disorder, Humans, Retrospective Studies, Stress Disorders, Post-Traumatic, Veterans, Transcranial Magnetic Stimulation
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