mxd apnea challenge- what kind of bi-pap -auto adjust?

[mtn aire]

more than 10 years ago i had a big clunky V-Pap machine, that was supposed to adjust levels as needed. was off for years- did not feel it was making diff- nosebleeds, headaches, fatigue, bloating from air, etc. you name it- so i gave up. fast fwd... more episodes of neuro (seizure like events) as well as heart failure signs.
updated sleep study- diff center: dx mixed apnea- this wk recvd remed s9 b-pap. this was suppliers choice. i am trying the 'nasal pillows'.
looks nice, lighter in wt. and smaller in size.
2nd nite.
i woke up having more chest pain, 'cheyne stokes breathing' etc. machine does not sense when i 'drop out' into very shallow breathing. i want something to sense when i drop too low and give me a little nudge- trigger breathing. goal is to even out things.

called sales/tech guy. says dr. must change orders (rx?) so i call and explain to pulmo. office. today they say they are requesting to insurance for a bi-pap machine that will have a 'set rate' so i will not go below that... still confused.
is this auto bi-pap? what is diff between V-Pap, bi=pap, auto adjust???

[Xney]

mixed or central apneas require a different (more expensive) machine type called an SV or ASV. Standard cpap/bipap prescription will not cover it - doctors have to diagnose central or complex/mixed sleep apnea and specify the SV machine.

[kane]

From 2008 to 2012, I tried over and over but could not tolearate the standard CPAP set at 8.0cm. I came to a point where I could hardly stand up and walk when I woke up, memory was fading, and my ability to think was deminishing rapidly. In 2012, a sleep study prescribed a Bi-PAP at 14/9cm. The machine just blew me away and the morning after symptoms were intolerable. During the sleep study, I had 5 CA with the BiPAP at 14/9 cm. I read that a standard CPAP and BiPap does not address CA. I came to the conclusion that I had complex apnea, that the Bi-PAP was not addressing the CA and I needed an ASV. I now believe I was wrong. Standand CPAP and BiPAP can induce CA at higher pressure. ASV is hard to handle and used only for very severe complex cases. Since May of this year, I have gained compliance nightly with the Auto CPAP set at the low 8/4 cm. I pretty much researched and found my own solution which was verified by a Sleep Doctor this month who prescribed the Auto CPAP set at 7/4cm. As far as I am concerned, the 2008, 2010 and 2012 sleep study prescribed the wrong machine and setting. The low pressure setting avoids the high pressure which induces CA. The stiffness and pain in my hands and feet have dissipated, my memory is restoring to normal, day time sleepiness is fading and becoming more productive.