Egg,
I've heard a lot of people bad mouth the King airway for a variety of reasons, of which I'm not sure is all founded. Some reasons are more economical reasons, or because people don't like change. I personally don't have an opinion since I've never used it before.
But here are things I keep hearing:
- Size. There are 3 sizes, unlike the Combitube which has two
- The device is actually not much cheaper than the Combitube ($38 vs. $54), and since you need to stock 3 sizes, the cost saving is minimal.
- Unlike the LMA, there isn't a size for pediatric patients
-Theoretical possibility of accidental tracheal placement