Lots of events at max pressure

[zzrrrp]

Hi there, I'm 9 nights into my CPAP therapy and having a great time. Typical nights have been 1-2 AHI, but last night I had an hour-long (515-615am) cluster of hypopneas even though my machine maxed out my prescribed pressure (5-10 cm H2O). Is that an indication that I should start tinkering with the allowed pressure range, or should I stay the course? Please advise if other data are pertinent.

[Julie]

One night is not enough to diagnose or change anything... because any thing could be responsible and you need more time for it to be meaningful.

[Bill44133]

You still are under 5 so I wouldn't change anything just yet.


I wish you well...

[LSAT]

I agree...you said your typical night is 1-2...don't be so anxious to make changes.

[ChicagoGranny]

5-10 cm H2O

If it were me, I would take the minimum to 8 and the max to 20. The machine is running very little of the time under 8 anyway. With the max set at 20, the machine will still not go above 10 unless you are having trouble breathing and need the extra pressure. And I do think you need it at times, probably when you are in REM.

If you make your screenshots and post your images like this, we can tell better what is going on - viewtopic.php?f=1&t=104876&st=0&sk=t&sd=a&start=30

One night is not enough to diagnose or change anything... because any thing could be responsible and you need more time for it to be meaningful.

Bull donkers.

[Wulfman...]

It could be "positional" events. Your airway is getting partially closed without actually shutting off your air.
I agree with Julie. Give it more time to observe and see if those situations occur more frequently or if it's just a coincidence.
I would NOT be increasing the maximum pressure.......at this point.


Den

.

[palerider]

You still are under 5 so I wouldn't change anything just yet.


I wish you well...

5 is just good enough for doctors... blech.

[palerider]

5-10 cm H2O

If it were me, I would take the minimum to 8 and the max to 20. The machine is running very little of the time under 8 anyway. With the max set at 20, the machine will still not go above 10 unless you are having trouble breathing and need the extra pressure. And I do think you need it at times, probably when you are in REM.

If you make your screenshots and post your images like this, we can tell better what is going on - viewtopic.php?f=1&t=104876&st=0&sk=t&sd=a&start=30

+1

[grayghost4]

CG "Bull donkers."

Is that a new Nick name

[zzrrrp]

Here's a SleepyHead readout with flow limitation and leak rate. Seems like the prudent thing is to keep watching for clusters like these and slowly increase the pressure range should they recur.

I should have mentioned this before: I did tighten my full face mask last night as a result of a mask fit test. Could the mask pulling my lower jaw back explain some of the extra events?

[VVV]

5-10 cm H2O

If it were me, I would take the minimum to 8 and the max to 20. The machine is running very little of the time under 8 anyway. With the max set at 20, the machine will still not go above 10 unless you are having trouble breathing and need the extra pressure. And I do think you need it at times, probably when you are in REM.

If you make your screenshots and post your images like this, we can tell better what is going on - viewtopic.php?f=1&t=104876&st=0&sk=t&sd=a&start=30

+1

+2

[Julie]

Your mask shouldn't have to fit too tightly - it crushes the thin cushion (which needs to inflate) and can create new smaller leaks... your face changes when lying down of course too, so trying on others needs to be done lying down. I agree your min. pressure should be moved up and also wonder if you're in the habit of ending up with your head down on your chest when sleeping - that will cut off your air (and cpap). A fix for that would be to wear a soft cervical collar (not the big stiff thing for whiplash) that keeps your head up, airway open and mouth closed a lot better... might be worth a try.

[VVV]

It could be "positional" events. Your airway is getting partially closed without actually shutting off your air.
I agree with Julie. Give it more time to observe and see if those situations occur more frequently or if it's just a coincidence.
I would NOT be increasing the maximum pressure.......at this point.


Den

.

The pressure is bumping up to 10, not just in the late morning, but almost the entire night. No need to limit the machine when more pressure is needed.

Plus, increasing the minimum from 5 to 8 is prudent because, as Granny said, his machine is running above 8 almost the entire night.

[Wulfman...]

Do you have a copy of your sleep study? Did it specify an optimal pressure setting?
Was there any mention of Central Apneas in it?
How did you end up with a range of pressures?
Your minimum pressure does seem a bit low to me, but depending on what your sleep study (titration) says, and how you happened to get that pressure range prescribed is what I have questions about.


Den

.

[Wulfman...]

It could be "positional" events. Your airway is getting partially closed without actually shutting off your air.
I agree with Julie. Give it more time to observe and see if those situations occur more frequently or if it's just a coincidence.
I would NOT be increasing the maximum pressure.......at this point.


Den

.

The pressure is bumping up to 10, not just in the late morning, but almost the entire night. No need to limit the machine when more pressure is needed.

Plus, increasing the minimum from 5 to 8 is prudent because, as Granny said, his machine is running above 8 almost the entire night.

There COULD be.......depending on what was in the sleep study (titration).

Read my previous post. I also think it would be prudent to increase the minimum pressure (or use a straight pressure), but I'm curious as to why that pressure range was prescribed.

Edit: The thing that jumps out at me are the Flow Limitations. Increasing the upper pressure may be problematic with them.


Den

.