[CPAP] Waking up immediately upon falling asleep with CPAP

[Lazarus]

Hi guys,
   I've tried CPAP a few times and had a lot of difficulty falling asleep with it.  When I was able to fall asleep with it a few times, though, the pattern was the same: I would wake up almost immediately after falling asleep with the mask on.  This also happened when we did an in-lab test with CPAP: I would fall asleep with some difficulty, but then would wake up almost immediately each time.

I've tried tinkering around with different pressure and masks but have gotten the same results.  Does anyone have any similar experience or suggestions?

I have recently bought a biPAP machine but have yet to be able to fall asleep successfully with it - was on it for over 2 hours while taking 2 sleeping pills last night, but unable to fall asleep until I took it off.

Any help or advice would be appreciated - I can share more details if they would be helpful.

Thanks!

[staceyburke]

What are your settings - Min pressure, Max pressure, EPR setting or on bipap the PS setting.

I know you would not have an all night OSCAR set of charts but the left side of OSCAR will tell us much more about the setting you are on. OSCAR is a totally free software that can be downloaded at the top of the site. You would need an SD card to go into the cpap if it does not come with one....

[Lazarus]

I started with min pressure 5, max pressure 25, I think the PS on the biPAP was 4

I played around with adjusting the min pressure up to 10, then eventually went back to 5.  I have OSCAR on my laptop but I don't think I've "linked" my machine to it yet.  I'll take a look and see if I can provide more data.

[Lazarus]

Here is what OSCAR tells me - please let me know if you need other information:


Device Settings

Mode
VPAPauto
Min EPAP
10.00 cmH2O
Max IPAP
25.00 cmH2O
PS
4.00 cmH2O
Antibacterial Filter
No
Climate Control
Manual
Essentials
Plus
Humidifier Status
Off
Mask
Full Face
Ramp
Off
Smart Start
Off
Temperature
27 ºC
Temperature Enable
On

[Lazarus]

Here is my OSCAR report (I couldn't figure out how to post it as an attachment):

Name: Hertz, Logan
DOB: Thu Dec 16 1982
OSCAR
Usage Statistics
CPAP Statistics
65 days of CPAP Data, between Mon Jun 19 2017 and Sun Mar 12 2023
Details Most Recent Last Week Last 30 Days Last 6 Months Last Year
CPAP Usage
Average Hours per Night 02:23 00:54 00:54 00:33 00:32
Compliance (4 hrs/day) 0% 0% 0% 0% 0%
Therapy Efficacy
AHI 3.77 3.68 3.68 5.95 4.99
Obstructive Index 0.00 0.00 0.00 0.00 0.00
Hypopnea Index 0.00 0.00 0.00 0.00 0.00
Unclassified Apnea Index 0.00 0.00 0.00 0.00 0.00
Clear Airway Index 3.77 3.68 3.68 5.95 4.99
95% Flow Limitation 0.00 0.00 0.00 0.00 0.00
Leak Statistics
Average Leak Rate 0.75 2.01 2.01 2.19 2.57
95% Leak Rate 3.60 9.60 9.60 10.80 12.00
% of time above Leak Rate threshold 0.23% 0.57% 0.57% 0.73% 1.90%
Pressure Statistics
Average Pressure 9.34 9.40 9.40 9.92 10.09
Min Pressure 9.00 8.86 8.86 8.86 6.00
Max Pressure 14.00 14.06 14.06 15.00 17.00
95% Pressure 14.00 14.00 14.00 14.00 14.00
Average EPAP 5.34 5.40 5.40 6.13 6.44
Min EPAP 5.00 4.86 4.86 4.00 4.00
Max EPAP 10.00 10.06 10.06 10.06 14.00
This report was prepared on Mon Mar 13 2023 13:53 by O SCA R 1.4.0+e35d47b3
OSCAR is free open-source CPA P report software
Changes to Device Settings
First Last Days AHI FL Device Pressure Relief Mode Pressure Settings
Sun Mar 12 2023 Sun Mar 12 2023 1 3.77 0.00 AirCurve 10 VAuto (37094) None VPAPauto PS 4.0 over 10.0-25.0 (cmH2O)
Thu Mar 9 2023 Fri Mar 10 2023 2 2.99 0.00 AirCurve 10 VAuto (37094) None VPAPauto PS 4.0 over 5.0-25.0 (cmH2O)
Mon Nov 21 2022 Mon Nov 21 2022 1 13.18 0.00 AirSense 10 AutoSet (37028) EPR: Full Time 3 cmH2O APAP Min 12.0 Max 16.0 (cmH2O)
Wed Oct 5 2022 Thu Oct 6 2022 2 0.00 0.00 AirCurve 10 VAuto (37094) None VPAPauto PS 4.0 over 5.0-25.0 (cmH2O)
Thu Sep 29 2022 Thu Sep 29 2022 1 0.00 0.00 AirCurve 10 VAuto (37094) None VPAPauto PS 5.0 over 4.0-25.0 (cmH2O)
Sat Sep 24 2022 Wed Sep 28 2022 2 0.00 0.00 AirCurve 10 VAuto (37094) None VPAPauto PS 4.0 over 10.0-25.0 (cmH2O)
Tue Apr 26 2022 Tue Apr 26 2022 1 0.00 0.00 AirSense 10 AutoSet (37028) EPR: Full Time 3 cmH2O APAP Min 10.0 Max 20.0 (cmH2O)
Sat Apr 16 2022 Sat Apr 16 2022 1 0.00 0.00 AirSense 10 AutoSet (37028) EPR: Full Time 3 cmH2O APAP Min 15.0 Max 20.0 (cmH2O)
Mon Jun 19 2017 Wed Apr 18 2018 54 3.10 0.00 AirSense 10 AutoSet (37028) None CPAP Min 0.0 Max 7.0 (cmH2O)
Device Information
Brand Model Serial First Use Last Use
ResMed AirCurve 10 VAuto (37094) 23221382789 Sat Sep 24 2022 Sun Mar 12 2023
ResMed AirSense 10 AutoSet (37028) 23171322201 Mon Jun 19 2017 Mon Nov 21 2022
This report was prepared on Mon Mar 13 2023 13:53 by O SCA R 1.4.0+e35d47b3
OSCAR is free open-source CPA P report software

---

And there, I figured out how to post it as an attachment.  Please see attached my OSCAR file - please let me know if anyone has any suggestions.  I am going to try an oxygen mask tonight.

[Sleeprider]

Lazarus, you managed to post a summary statistics, the daily details will be more helpful. Tutorials for organizing your Oscar charts and attaching image files are both linked in my signature. The chart you posted shows your events are all central apnea so we're going to give you some modified settings until you can post a useful chart. These settings assume your problem is mainly related to the clear airway events and is based on the fact your best results were with the Autoset CPAP and your historic results show zero flow limitations. If you have any information on your sleep test diagnostics it would be interesting to see a copy with redacted personal information. Everything here suggests you don't have an obstructive sleep apnea problem.

Mode: Vauto
EPAP min 6.0
PS 2.0
Max pressure 12.0
Trigger sensitivity: High

[Lazarus]

Thank you!  Please find attached my latest daily chart.  I've never been able to sleep with my aPAP or biPAP machine.  On the occasions I am able to fall asleep, I wake up pretty much immediately, and my events seem to be high (15-19 AHI).  Please find attached my latest daily chart, where I was attached to the machine for about 2.25 hours but didn't fall asleep.  I took two sleeping pills (not at the same time), and I did get up a couple of times to use the bathroom or get water.

[Sleeprider]

This is pretty much what I expected. Try the settings I outlined above with reduced PS and use a Very-High trigger sensitivity. I have to wonder if even have obstructive sleep apnea, or if your problems are all central. Do you have a sleep test?

[Lazarus]

Thank you for the suggestion - I will try those settings.  Yes, I have had two separate in-lab sleep tests, both of which diagnosed me with obstructive sleep apnea, and not central sleep apnea.  What results from those tests would be helpful for me to share?

[Sleeprider]

If you have the hypnogram that shows events, sleep position, sleep stage, etc, that would be ideal. FWIW all sleep studies diagnose obstructive sleep apnea, even when events are all central. DAMHIK.