What Researchers Did
Researchers explored the technical possibility of performing airway management, mechanical ventilation, and chest compressions underwater using a manikin in a hyperbaric chamber.
What They Found
They found that tracheal intubation times varied, with the Fastrach™ taking 36 seconds and the Pentax AWS S100 taking 57 seconds. While mechanical ventilation was possible at 50 meters depth, the ventilation rate decreased from 14.7 min-1 at the surface to 6.5 min-1, and minute volume dropped from 7.6 l min-1 to 4.5 l min-1. Automated chest compressions at 50 meters had a rate of 228 min-1 compared to 106 min-1 at the surface, but their depth decreased with increasing water depth, and water suctioning was not fully effective.
What This Means for Canadian Patients
This research could eventually inform specialized rescue techniques for individuals who experience cardiac arrest or need ventilation in underwater environments, such as divers or workers in submerged structures. While highly specialized, advancements in underwater resuscitation could improve survival chances in rare, extreme drowning or underwater medical emergencies.
Canadian Relevance
No direct Canadian connection identified.
Study Limitations
The study was limited by its use of a manikin model and the inability of the suction system to completely remove water from the airways.