What Researchers Did
Researchers conducted a double-blind, randomized, cross-over trial to compare the effect of enriched air nitrox (EAN) versus compressed air on venous gas bubble formation after simulated SCUBA diving.
What They Found
In 12 subjects prone to bubbling, EAN significantly reduced cumulative bubble scores compared to compressed air (1 [0-3.5] vs. 8 [4.5-10]; P < 0.001). Three decompression incidents (cutaneous itching) occurred in the compressed air group versus zero in the EAN group (P = 0.217).
What This Means for Canadian Patients
Canadian divers using enriched air nitrox (EAN) for similar diving profiles may experience a reduced risk of venous gas bubble formation and decompression-related incidents. This could potentially enhance safety during recreational or professional diving activities.
Canadian Relevance
This study has no direct Canadian connection as it was not conducted in Canada nor involved Canadian researchers or participants.
Study Limitations
The study was conducted in a hyperbaric chamber with simulated diving and included only subjects prone to post-decompression venous gas bubbling, limiting generalizability.