What Researchers Did
Researchers investigated if venous gas bubbles, commonly observed after diving, increase pulmonary artery pressure in asymptomatic recreational divers.
What They Found
In 10 recreational divers, after a simulated dive to 18 meters for 80 minutes, venous gas emboli were present (mean=1.71 bubbles.cm-2). However, the ratio used to estimate pulmonary artery pressure did not decrease; it actually increased from 0.43+/-0.06 to 0.49+/-0.06 (p<0.05) 40 minutes after the dive, suggesting a decrease in pressure.
What This Means for Canadian Patients
For Canadian recreational divers, this study suggests that the presence of venous gas bubbles after a dive may not increase the risk of arterial embolization by raising pulmonary artery pressure. This finding could provide some reassurance regarding the safety of the central circulatory system during recreational diving, assuming proper decompression procedures are followed.
Canadian Relevance
No direct Canadian connection identified.
Study Limitations
This study was limited by its small sample size of 10 healthy recreational divers and the use of a simulated dive environment.