NEW with PR1 System One need some help

[rosacer]

Hi, I have been using a System One auto for a couple of days. I noticed some things I don't know if it's normal or if I'm making some mistakes, could you please give some insight? (Pressure setting 6 - 12 CM/H2O, ramp 5 minutes not C or A flex. Humidifier at 4).

1- While I'm still trying to fall asleep there is a sudden pressure increase like a pulse. This pulse repeats every I don't know 2 or 3 minutes. Is this normal? This happens when I'm almost falling asleep, it seems I have a problem of shallow breathing could it be an issue? Is my ramp time too short?????

2- Several times it had happened I download the data and surprise the small blue icon with the wave sign is not there, so the graph for the ventilation are not available only the ones with data. Or happened I have only a partial graph with several minutes or a couple of hours of waves. IS THIS NORMAL OR IT'S MY FAULT HELP

Other way I have a great time with my auto cpap.

[cpapernewbie]

With your pressure, the ramp is not needed. Try without ramp and see what happened.

[bailachel]

I'm not sure. I have downloaded data only twice so far. (inception to date both times) In each case, the waves were only available on the 2 most recent days even though the daily graphs have been available for the entire period if run in 7 day increments. Maybe the wave info takes up so much space that they only retain 2 days worth?

[Hope1952]

2- Several times it had happened I download the data and surprise the small blue icon with the wave sign is not there, so the graph for the ventilation are not available only the ones with data. Or happened I have only a partial graph with several minutes or a couple of hours of waves.

I empathize. I have the same machine and the same problem of it waking me everytime I doze. It's like having a neighbor's dog that barks often enough to keep me from getting any sleep. I'll be interested to read how your problem is resolved. I hope it's me and not the machine.

How do you download the data? I tried to buy the software and was told it's not on the market yet because the machine is so new. Thanks!
Jane

[unadog]

Central apneas are common as you transition to sleep from being awake. It is probably responding to an apnea when it increases pressure.

If you were runnng in CPAP mode, or with your lower pressure closer to the pressure you were titrated at to clear apneas, you would probably not sense that pressure increase.

What was your CPAP presecriptin pressure from your titration?

[rosacer]

Central apneas are common as you transition to sleep from being awake. It is probably responding to an apnea when it increases pressure.

What was your CPAP presecriptin pressure from your titration?

Unadog
I didn't have any central at sleep study, nor legs movement but shallow breathing and "weird breading" (very technical statement) if I take the technician's words. I have never been titrated, I know my pressure moves from 7.4 to 8.6 and it has been 10.6 but I think it was because of leak problems in that case.

[blakepro]

2- Several times it had happened I download the data and surprise the small blue icon with the wave sign is not there, so the graph for the ventilation are not available only the ones with data. Or happened I have only a partial graph with several minutes or a couple of hours of waves.

I empathize. I have the same machine and the same problem of it waking me everytime I doze. It's like having a neighbor's dog that barks often enough to keep me from getting any sleep. I'll be interested to read how your problem is resolved. I hope it's me and not the machine.

How do you download the data? I tried to buy the software and was told it's not on the market yet because the machine is so new. Thanks!
Jane

I have this machine and havnt had this problem. I use A-flex though. Neither of you are using any flex at all?

[Hope1952]

I have this machine and havnt had this problem. I use A-flex though. Neither of you are using any flex at all?

No, I haven't used A-flex. I just got into my machine today and changed it to A-flex. Am hoping for some improvement.

[Hope1952]

I have this machine and havnt had this problem. I use A-flex though. Neither of you are using any flex at all?

No, I haven't used A-flex. I just got into my machine today and changed it to A-flex. Am hoping for some improvement.

And the C-Flex was on the lowest setting. No one ever said anything to me about the settings and I didn't get a manual with my machine.

[robmax]

This, plus the machine and breathing noise, is why I got rid of my System One after a month. And others with the PR1 have posted about this issue. This is likely the FOT (Forced Oscillation Technique) which Respironics uses to test for open airway, i.e., is the airway open or closed during the cessation of breathing, and therefore is the apnea event obstructive or central. To test this, the machine sends puffs of air through the airway and measures the result (others on here could give you a more technical explanation than I can). I hated getting these puffs of air up my nose and woke up constantly -- if I ever went to sleep. I couldn't fix it with any settings so bought a different apap.

I believe that the S9 also uses FOT, they but must take a slightly different approach because I haven't read of any complaints by S9 users. I don't believe that my S8 has this "feature."

Rob

[SleepingUgly]

Yes, I agree that it sounds like you're describing the clear airway test pulses. The waveform data is only saved for the last two days.

[rosacer]

I HAVE GOOD NEWS

But not for you robmax you sold your machine too fast

Yes SleepingUgly those are the clear way pressure pulses. I'm not sure why they where been send but I fixed the problem.

I had set a ramp of 5 minutes starting at 5 CM/H2O; the minimum pressure for the Apap is 6 CM/H2O. For a reason not too clear to me the machine thought it was something not good while I was almost falling asleep and send the pulse. I think I read somewhere something about a minimum difference should exist among the ramp start pressure and the minimum pressure. But don't trust me too much my memory is still in trouble.

I set the ramp OFF last night and VOILA no more pulses.

I know I have a problem of shallow breathing that's maybe the reason the machine get confused and starts sending pulses before I fell asleep. Who knows.

SleepingUgly: if the waveform data is only saved for the last two days does it means if you download data at that frequency you will be able to keep all the information?

I manage yesterday to erase all my waves from the software I was trying to recuperate one wave missing , anyways. I get the waveform today, it was in the card From now on I don't play again with the software before saving all the information, I think I had all the files already saved

[Hope1952]

Rosacer,
I'm so glad you posted this question. The puffs of air test must be another "feature" responsible for constantly waking me up as I'm dozing off. I breathe shallowly too...37 times an hour. The machine had been constantly working/fighting to "fix" me with different air patterns going on. It has been anything but restful or condusive to sleep.

I turned my ramp off last night, too. I slept using the cpap for about 3 hours, but for the first time I actually SLEPT with it (after two months of trying!!!) instead of being awakened 30-40 times in an hour. And I didn't notice the puffs. (I did take half of a prescribed sleeping pill hoping it would help get me moving in a positive direction)

[blakepro]

This whole "no ramp thing" could be why I haven't noticed the pressure pulses.

I never use ramp.

For the record, I do have A-Flex on with a setting of 2, and that may have something to do with it as well, but yeah, I never ramp.

[cpapernewbie]

Probably those who have insurance dealt with DME RTs who mostly never use CPAP
It is likely they are all trained to setup RAMP automatically whatever the pressure is, I think pressure of 6-12 should not need the ramp Ramp caused some complication - instead of easing you into sleep, it is preventing you to sleep.

Experienced this the hard way and find the solution only after 3 months