Quote: (Originally Posted by dteubner)
With all due respect this is just wrong in many many ways. Oxygen does not cause systemic blood vessels to narrow. There are not circulating arterial bubbles in most patients with DCI. Arteries get smaller and smaller as they divide so a bubble will have to stop somewhere.
If we are to reconsider the use of 100% O2 in first aid (and therefore presumably treatment) of DCI there would have to be some evidence that an alternative was better or, at the very least, a theoretical reason that actually made sense. There is no evidence and there is no good reason.
Dave T
Actually under hyperbaric conditions, there is some sytemic vasoconstriction, but that's not what we're talking about. I agree that 100% O2 is THE initial treatment of DCI