Summary of Study
The study, “Randomized Trial of Hyperbaric Oxygen Therapy for Children with Autism”, evaluated whether mild hyperbaric oxygen therapy (HBOT) could improve symptoms in children diagnosed with Autistic Disorder. Conducted as a randomized, double-blind, placebo-controlled clinical trial, the study compared children receiving HBOT at 1.3 atmospheres absolute (ATA) with 24% oxygen against a placebo group receiving a sham treatment. Researchers assessed changes in core autism symptoms, including communication, social interaction, adaptive behavior, and overall clinical functioning using standardized behavioral assessments. The objective was to determine whether mild HBOT provided measurable therapeutic benefits beyond those observed with placebo in children with autism spectrum disorder.
Methodology
Thirty-four children with Autistic Disorder were randomly assigned to receive either mild HBOT (24% oxygen at 1.3 ATA; n=18) or a placebo treatment (n=16). The study used a double-blind design so neither families nor evaluators knew which treatment participants received. Outcomes were measured using standardized psychological assessments and direct observations before and after treatment to compare changes between the two groups.
Results
The investigators found no statistically significant differences between the HBOT and placebo groups across any of the primary outcome measures. Children receiving mild HBOT did not demonstrate greater improvements in core autism symptoms, adaptive behaviors, or observational assessments compared with those receiving placebo. Based on these findings, the treatment protocol evaluated in this study did not produce clinically meaningful benefits for children with autism.
Conclusion
This randomized controlled trial concluded that mild hyperbaric oxygen therapy using 24% oxygen at 1.3 ATA did not significantly improve symptoms of Autistic Disorder compared with placebo. The authors noted that additional research using different treatment protocols, patient populations, or dosing strategies would be necessary before drawing broader conclusions regarding HBOT and autism.
Source: Randomized Trial of Hyperbaric Oxygen Therapy for Children with Autism | Doreen Granpeesheh, Jonathan Tarbox, Dennis R. Dixon, Arthur E. Wilke, Michael S. Allen, James Jeffrey Bradstreet | Elsevier ScienceDirect | DOI: 10.1016/j.rasd.2009.09.014
