(09-14-2014, 10:52 PM)harleygirl Wrote: I'd appreciate any input any of you might have regarding what my data so far might mean?
Hi harleygirl, welcome to the forum!
You have a fine machine.
How does the therapy feel to you?
The max pressure delivered by the machine in the last 6 days was the same as last night's max pressure of 16.2. Are you having any discomfort from swallowing too much air, or is high pressure uncomfortable or waking you up? If not, I wouldn't suggest asking your therapist to lower the max pressure (the "Auto max" setting) at this time.
Are you having any difficulty from the minimum pressure (the "Auto min" setting) being too low? When the minimum pressure is as low as 4, many people become uncomfortable after a few days. It makes them feel like they are working too hard to inhale enough air. They find that a little higher minimum pressure makes it easier to breathe in.
Also, in your case, there is another reason for raising the minimum pressure: the 90% pressure averaged over the past 6 days was 10.3. If the 90% pressure for the most recent night was 13.3 this means that at least 90% of the time (during that one night) the pressure was 13.3 OR LOWER. It also means that at least 10% of the time the machine needed to deliver a pressure of 13.3 OR HIGHER.
All that may sound a little confusing for now, but the point is that on an average night your machine would need to spend a significant amount of the time (at least 10% of the time) around 10.3 or higher, and 10.3 is a little far from the minimum pressure setting of 4. It would likely be better for the minimum to be not as far from the 90% number. Also most of your events were of the type (obstructive) which a higher minimum pressure would tend to solve. Raising the minimum pressure setting to 6 or higher makes sense to me.
A few patients find that they feel most rested when their minimum pressure setting is nearly the same as their 90% pressure statistic, but that is a little unusual, so I certainly don't suggest asking for that at this time, but do I suggest you keep it in mind for the future because you (like everyone else) might or might not be part of that minority.
I suggest you ask your doctor or therapist to increase the minimum pressure to 6 or higher. It would be easiest for you to make this simple change this yourself, of course, but I recommend taking the time to work with your health professionals. I'm pretty sure they would be happy to change the minimum pressure to 6 or higher, especially since the minimum pressure setting is generally considered a comfort setting which can be safely raised when requested by the patient.
I recommend giving them a chance to be responsive to your needs, at least until the initial "compliance monitoring" period (usually 2 or 3 months) is over.
By the way, a pressure of 20, which is the max your machine can deliver, is actually pretty low. 20 cm H2O is equivalent to about 0.28 pounds per square inch, which is a lot less than what is needed to blow up an average balloon and way too low to be measured with a typical tire gauge, for example.