Why is that strange?
Really? That seems strange.
Yeah. I'll find the study and post it up. There was a comparison between a King, a combi and an ETT.
It's in the current issue of PEC, in the Abstracts for the 2012 NAEMSP Scientific Assembly.
Prehospital Emergency Care Jan 2012, Vol. 16, No. 1: 152–187.
I don't have access to it at home, but maybe someone here does...
LMAs have been in use by Irish Paramedics (broadly similar to US EMT-Is) for a few years now, but there is a move to i-gels now. They cannot use Combitubes/Combitubes or intubate (only our Advanced Paramedics can).
In the most recent guidelines i-gels have been approved for EMTs (similar to US EMT-Bs) and for EFRs (similar to US EMRs, lower skill set but more ASA, O2 GTN, epi-pen and Salamol assist) operating under the direction of a Fire Service/in association with the State Ambulance service.
Anecdotally - although theres no research on changes in outcome as yet - Many Paramedics prefer them to the LMAs, and also a lot of providers have been happy at their expanded use as its allowed them to go beyond CPR and manual airway maintenance.
Can't help but wonder if there would have been a difference if each of the airways choosen was used the entire time instead of being switched for an ET tube each time.