(03-13-2014, 06:08 PM)cowboy1970 Wrote: Some have commented that it is better for centrals and such.
Some seem to think that bilevel/VPAP is better for centrals, but I think that's generally not true. Sometimes, insurance wants to screw with you and makes you try bilevel for cental apnea. I think they're mostly trying to wear you down and make you give up before buying the much more expensive ASV.
However, centrals are sufficiently weird that it might work for some.
The "true" central apnea machines are "T" or "ST" mode bilevels and ASV machines, both of which are classified as "bilevel" for insurance and regulatory purposes, but they are more complicated than a "regular" bilevel/VPAP machine. There's some legitimate confusion since the "VPAP/bilevel/BiPAP" label is on all of them.
ASV is the "true" central apnea machine, and the "T" and "ST" mode machines are sort of half measures.