The only problem with fiddling with the max number is what if an obstruction is experienced that requires a greater pressure than 12 to correctly treat? If you leave it at 20, the Autoset will automatically determine the appropriate pressure to treat that specific event.
With no monitoring capability, going directly to 20 as a max, if the machine kept bumping the pressure in response to perceived flow limitations, could introduce pressure induced centrals where there were none before, with no way to know.
I thought the newer machines were designed to identify flow limitations and differentiate between OSA and CSA events? I'm pretty sure mine does.
04-16-2015, 10:41 AM
(This post was last modified: 04-16-2015, 10:42 AM by justMongo.)
Start it just below your old CPAP pressure, like 8. At 4, you will be uncomfortable; and the machine will have to increase pressure more increments to treat your OSA. Give it more upper end room to work. I wish it had full data capability so you could see your pressure stats. I'd not open up as far as 20. So, we'll have to SWAG it. Try 16 cm-H2O as your upper limit. If you AHI goes up on auto, you may have some pressure induced centrals that are getting into then AHI. But, we cannot tell that without full data. So, you may have to tweak the max pressure to obtain optimum (minimum) AHI.
The advantage of going auto is to permit the machine some room to adjust for the variations that occur from night to night; and even as the years pass and we change. As for me: fatter, older, balder... you get the picture.
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Good input guys - thank you so much.
Looking forward to seeing what the limited data I have looks like tomorrow morning.