ResMed S9 VPAP S, Auto, Adapt w/ASV

[Peter_C]

Guess I got caught by the same sort of documentation for my S8. I just went and checked my CPAP and it only comes up with 3 modes.

Best Regards,

PaytonA

No worries I goof all the time myself. And I rely on others to point out my mistakes when I make them - to me this is what learning is all about. No harm, no foul

[JohnNJ]

So if the prescription says "BiPAP-ST therapy on 10/4 cm H2O and back-up rate of 10," is he only eligible for the S9 VPAP ST or can he get the S9 VPAP ST-A?

[robysue]

So if the prescription says "BiPAP-ST therapy on 10/4 cm H2O and back-up rate of 10," is he only eligible for the S9 VPAP ST or can he get the S9 VPAP ST-A?

I'm going out on a limb here, but unless there are features that the VPAP ST-A has that are required to fill your friend's prescription, my guess is that he will only be eligible for the S9 VPAP ST.

Only things that I can think of that might trigger the need for a VPAP ST-A is if the IPAP pressure is > 25 (which your friend's is not) OR the need for a mode called iVAPS (intelligent Volume-Assured Pressure Support) OR the need for a mode called PAC (Pressure Assist Control).

iVAPS is used when the patient has certain other respiratory conditions that affect the lungs (as opposed to just the upper airway) that can lead to too much CO2 being retained during sleep. (Too much CO2 is not the same as not enough O2). I haven't found any understandable information about PAC. But it seems that both PAC and iVAPS are pretty specialized PAP/non-invasive ventilation modes that are not going to be needed except under very rare circumstances in a non-hospital setting.