Thanks for this advice Sleeprider!
After I posted my previous reply this morning, I decided to have a nap and switch out the BiPAP for the CPAP. The nap lasted 1.5 hours and there were four OA events, plotted below.
CPAP Results
- ResMed AirSense 10 Results: AHI = 4.7, Central = 2.0
From this pressure graph, the OA seems to be treated with a pressure of 13 cm, since there were no more OA's after that level was reached. This is consistent with a 9 day average on CPAP where the 95th percentile of pressure was 13.3 cm. Translating that into BiPAP terminology, that would be the EPAP level on the ResMed AirCurve 10 VAUTO.
Following the protocol, if EPAP 13, and PS 4, my inhale pressure would start at 17 cm. I may be able to tolerate that because the last 4 days before the BiPAP trial started, I used the CPAP with a Max Pressure of 20. There were nights on CPAP when the pressure went above 17 for a short time, but almost never went above 18 cm.
If I leave the IPAP at 18 cm, that only leaves a 1 cm increment for the Autoset algorithm to use, but I suppose if there are no OAs then there is no need to increase.
On the other hand, I had a good sleep on March 9 on CPAP, and the Autoset algorithm did not need to go above 15 cm. See chart below. Based on that unusually good sleep, I would set EPAP 11, PS 4 and IPAP 18 so my inhale pressure would start at 15 cm but there would be 3 cm of range for the Autoset algorithm to use. Thoughts?
CPAP Results - best night's sleep in last week