(04-01-2013, 01:22 PM)Always_yawning Wrote: Date (Clear Airway Apneas) (Hypo Apneas) (Obstructive Apneas)
3/28 21 1 11
3/27 27 21 39
3/26 25 37 41
3/25 14 35 33
3/24 12 6 22
3/23 19 2 25
3/22 7 17 71
3/21 1 33 51
(04-01-2013, 06:08 PM)PaulaO2 Wrote: Take a look at when your central events happened and note what the pressure is.
You seem to be regularly hitting the top threshold of your pressure. It's not the bottom number you need to consider changing, but the top one. But then you are also having central events so that may not be a good idea. Instead, try dropping the maximum a notch and see what happens. Try 14 for ten days. It may increase the OA but decrease the CA which may be a happy medium. There's a phenomenon called "pressure induced central events" or something like that where the higher the pressure goes, the more CA events that happen. Usually they decrease with time or starting out at a lower pressure then increasing as the patient acclimatizes.
A bilevel CPAP may not help with those central events. A bilevel lowers the exhale pressure more than a regular CPAP does. It does help some people with their central events but not many.
Hi Always_yawning, welcome to the forum!
Please see the thread named "Bilevel Positive Airway Pressure Worsens Central Apneas During Sleep".
What you probably need is an ASV machine. And since 15 cmH2O is sometimes not enough pressure to eliminate your obstructive apneas, I think the Philips Respironics System One BiPAP autoSV Advanced may be better in your case than the S9 VPAP Adapt. This is because an ASV machine needs to use the same pressure you need when on the AutoSet (where 15 is sometimes not enough in your case), and on top of that it will occasionally need to add up to 10 cmH2O of Pressure Support to keep you fully ventilated during your CA occasions. So you probably need an ASV machine which can deliver more than 25 cmH2O. The S9 Adapt cannot do that, and the PR System One autoSV Advanced can.
Most of your apneas are obstructive.
Look at your data for days which have lots of CA events. If your CA events were mostly happening when the pressure was above 14 then it may make good sense to try lowering the Max Pressure. But if most CA events were happening below 14, then I suggest it may help more to raise your max pressure to 16, and/or to make sure you stay off your back by putting a tennis ball in a sock and sewing it to a nightshirt between the shoulder blades.
But first, before changing your max pressure, if you have EPR enabled, I suggest turning it down to 1 or better yet turning it completely off. With some people, turning EPR off can help reduce OA events, and for someone who has CA events, turning off EPR can sometimes hugely reduce CA events.