What Researchers Did
Polish researchers reviewed published studies from 2012-2025 examining whether HBOT improves symptoms in children and adults with autism spectrum disorder (ASD).
What They Found
Some studies report improvements in speech, communication, and social behavior after HBOT, with the proposed mechanism being reduced inflammation and improved brain oxygen delivery. However, results are inconsistent across studies, with some showing no clear benefit and others noting side effects such as ear pain and rare oxygen toxicity.
What This Means for Canadian Patients
Families of children with ASD in Canada should know that HBOT is not a proven or approved treatment for autism, and outcomes vary widely between individuals. Significant costs and limited evidence mean it should not replace established behavioral therapies. Parents considering HBOT for ASD should consult their physician about current trial evidence.
Canadian Relevance
No direct Canadian connection identified.
Study Limitations
Study protocols, patient populations, and outcome measures vary so widely across reviewed papers that direct comparisons are unreliable.