Originally Posted by
Summit
This is what is being taught to the lay person. This is due to the pathophysiology amongst most adult arrests, ie the heart stops not due to respiratory distress, but rather due to occlusion of an coronary artery (the blood supply to the heart) so the blood is still oxygenated sufficiently to sustain the brain in compression only CPR until the ambulance arrives ideally in 8 minutes (also better and more consistent perfusion pressures are reached). It was also due to the fact that lay persons were unwilling to do any CPR in many instances because they thought they had to give mouth-to-mouth and had no barrier.
BREATHLESS CPR IS NOT A GOOD PRACTICE FOR AVALANCHE VICTIMS (or drowning victims or choking victims)
Avalanche victims who can be saved by CPR went into arrest because of hypoxia, not enough oxygen. (or a combination of hypoxia, hypercapnia, and maybe hypothermia) No air made their heart stop. Therefor, simply circulating their unoxygenated blood will do very little to help. They need breaths and compressions.
For this reason, I recommend in the strongest terms possible that:
All backcountry recreationists should take a CPR class meant for rescuers or health care providers that teaches CPR with rescue breaths and that they carry a CPR barrier or pocket mask to protect from pathogen exposure.