What Researchers Did
Researchers evaluated the effect of long-term, intermittent hyperbaric oxygen exposure on pulmonary diffusing capacity in four divers.
What They Found
After 35-38 years of diving activity, accumulating 4600-6000 hours of exposure to hyperbaric oxygen up to 4 ATA, no significant impairment of lung diffusing capacity was observed in the four subjects. This suggests that long-term, intense hyperbaric oxygen exposure may not lead to remarkable pulmonary diffusion issues.
What This Means for Canadian Patients
For Canadian patients who are professional divers or those undergoing hyperbaric oxygen therapy, these findings suggest that long-term exposure may not significantly impair lung diffusion. This information could help inform discussions about the long-term pulmonary safety profile of such exposures.
Canadian Relevance
This study has no direct Canadian connection.
Study Limitations
A significant limitation of this study is its very small sample size of only four subjects, which limits the generalizability of the findings.