Children with autism have difficulty handling viral infections, most likely due to immune dysfunction.
It has been postulated many times that children with autism have a chronic low grade viral gastroenteritis and viral encephalitits. I speculate that one of the primary reasons HBOT works so well for so many children whose abnormal stools improve once they start HBOT is because the chronic, low-grade, smoldering live viral load harbored in the intestinal mucosa (Wakefield/Krigsman hypothesis) does poorly when surrounded by higher oxygen concentrations.
Many children with autism have increased amounts of abnormal bacteria and yeast in their gastrointestinal tracts These same children have shown clinical improvements when this overgrowth phenomenon is treated with antibiotics, either by natural agents or pharmaceuticals.
HBOT has been shown to decrease abnormal bacteria/yeast in the gut.
Then most parents will state what they are doing, e.g. Because dissolved oxygen is not confined to a hemoglobin molecule, it can go wherever "body water goes" and therefore reach 'deeper tissues' more easily and more consistently than ever before Because no test is able to predict which child may and which child may not respond to extra pressure and/or extra oxygen (in contrast to excessive oxygen), I let nature take its course and prescribe a clinical trial of HBOT for all my children Though I let "nature take its course", I would not consider prescribing or administering HBOT to children with autism unless there was good scientific evidence to support its use.
Though it has been stated often on the internet boards that angioneogenesis does not occur unless pressures are 1.5 ATA or greater, the South American physician Dr.Therefore, whenever inflammation brings more fluid to a region of the body that is comprised of solid tissue and hollow blood vessels, the first thing to happen is that the hollow blood vessel lumens will be compressed and deliver fewer red cells carrying oxygen to the area.Once inflammation is reduced the secondary vascular narrowing is improved allowing increasing amounts of red blood cells carrying oxygen to reach the hypoxic areas and SPECT scans will once again "light up" turning from blue to yellow.This explanation is in keeping with the clinical results I see.In my clinic improved bowel function is in the top 20 most commonly seen benefits., not only due to the competing mechanisms of vasodilation and vasoconstriction, but also due to decreasing the inflammation that secondarily constricts blood vessel lumens in a closed spac.