What Researchers Did
Researchers investigated if neuronal injury markers increased in the blood of 32 divers after two simulated SCUBA dives in a hyperbaric chamber.
What They Found
Researchers found that tau protein concentrations significantly increased in divers' blood at 30-45 minutes after the second dive (p < 0.0098) and at 120 minutes after both dives (p < 0.0008/p < 0.0041). This increase was independent of post-dive oxygen breathing and the presence of venous gas emboli. Other markers, glial fibrillary acidic protein and neurofilament light, showed no consistent changes.
What This Means for Canadian Patients
This research suggests that SCUBA diving may cause a temporary increase in a neuronal stress marker, tau protein, in the blood. While further validation is needed, this could eventually lead to new ways to monitor divers for potential neurological impact and enhance safety.
Canadian Relevance
This study has no direct Canadian connection.
Study Limitations
The study's findings, conducted in a hyperbaric chamber, require validation in real-world diving scenarios and further investigation into the quantitative relationship between dive exposure and tau changes.