Hyperbaric oxygen therapy improves cognitive function and sleep quality in traumatic brain injury patients
This meta-analysis of 8 RCTs with 570 participants found that HBOT significantly improved computerized cognitive performance (SMD=0.23, 95% CI: 0.07-0.40), executive function and processing speed (SMD=-0.59, 95% CI: -0.93 to -0.26), memory function (SMD=0.33, 95% CI: 0.03-0.63), and sleep quality (MD=1.98, 95% CI: 0.07-3.88). No significant benefits were found for Glasgow Outcome Scale, PTSD symptoms, neurobehavioral symptoms, or emotional distress.
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Hyperbaric oxygen therapy improves cognitive function and sleep quality in traumatic brain injury patients The current body of evidence comprises 1 study and 1 meta-analysis. EvidenceHub rates the overall confidence at 53/100 (low).
The Claim
Hyperbaric oxygen therapy improves cognitive function and sleep quality in traumatic brain injury patients
This conclusion is most relevant to: Adults with traumatic brain injury (predominantly mild TBI).
What the Research Shows
The conclusion draws on 1 linked study. Highlights from the cited literature:
- ▸Effectiveness of Hyperbaric Oxygen in Traumatic Brain Injury Patients: A Systematic Review and Meta-Analysis. (Complementary therapies in medicine, 2026) —
How It Works
The proposed biological pathway:
- ▸HBOT increases oxygen delivery to brain tissue
- ▸Reduces cerebral edema and inflammation
- ▸Promotes neuroplasticity and repair
- ▸Result: Improved cognitive function and sleep quality
Who Might Benefit
Evidence fit by population:
- ▸Adults with traumatic brain injury (predominantly mild TBI)
Recommended Dose
N/A (not specified in abstract)
Limitations & Caveats
Important context when interpreting this evidence:
- ▸High heterogeneity in some outcomes (I² up to 97%)
- ▸Limited applicability to moderate-to-severe TBI populations
- ▸Evidence for PTSD, neurobehavioral symptoms, and emotional distress remains uncertain
Frequently Asked Questions
Does hyperbaric oxygen therapy improve cognitive function in TBI patients?▼
Yes, the meta-analysis found significant improvements in computerized cognitive performance, executive function, processing speed, and memory function in TBI patients, predominantly those with mild TBI.
Does HBOT improve sleep quality in TBI patients?▼
Yes, HBOT significantly improved sleep quality (MD=1.98, 95% CI: 0.07-3.88), though heterogeneity was moderate (I²=65%).
Is HBOT effective for PTSD symptoms in TBI?▼
No significant benefit was found for PTSD symptoms (MD=-3.05, 95% CI: -7.05 to 0.95), so evidence remains uncertain.
What are the adverse effects of HBOT in TBI patients?▼
Most adverse events were mild and transient, but specific details were not provided in the abstract.
References
- 1.Wang H, Zhou H, Nie J, Du S, Ning W, Ding S, Zhang H. “Effectiveness of Hyperbaric Oxygen in Traumatic Brain Injury Patients: A Systematic Review and Meta-Analysis..” Complementary therapies in medicine, 2026. PMID: 42575227 DOI: 10.1016/j.ctim.2026.103417