What Researchers Did
Researchers used a statistical method called maximum likelihood to predict bubble formation in divers after experimental air and helium dives conducted in a hyperbaric chamber.
What They Found
The study analyzed data from 108 air dives and 622 helium dives performed in a hyperbaric chamber. They found that a two-compartment model predicted bubble formation significantly better than a one-compartment model, especially when distinguishing between nitrogen and helium gas kinetics and their potencies. This suggests that considering the potential bubble volume is a better prediction criterion than gas pressure.
What This Means for Canadian Patients
For Canadian patients who are divers, this research helps improve the understanding of how bubbles form after dives. Better prediction models for bubble incidence could lead to safer diving tables and protocols, potentially reducing the risk of decompression sickness. This could mean fewer instances of divers needing hyperbaric oxygen therapy for decompression sickness.
Canadian Relevance
This study was conducted by Canadian authors and covers decompression sickness, a Health Canada-recognized indication for hyperbaric oxygen therapy.
Study Limitations
The study used experimental data from a hyperbaric chamber and was published in 1990, meaning current understanding and technology may have advanced.