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RE: Changing Max Pressure and starting a BiPAP trial
Let's agree to use some consistent terminology. Since you are moving between the Autoset and Vauto, let's use bilevel terms for both. In your recent CPAP trial your final pressure was 13.4/10.4 (IPAP/EPAP), or EPAP 10.4, IPAP 13.4 at PS 3.0. If we move that to a Vauto with PS 4.0, then we're talking about EPAP min 10.0, IPAP max 18.0, at PS 4.0. If you want to move upwards more gradually, as we should with titration, then start with EPAP 8.0 before progressing to 9.0 or 10.0. As I suggested earlier, the next step should be EPAP min 8.0, IPAP max 15.0 and PS 4.0. Try that first and we can judge those results before making further changes.
INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
RE: Changing Max Pressure and starting a BiPAP trial
Third night of BiPAP
Changes from second night: increased min EPAP to 8 cm (was 5), decreased PS to 4 cm (was 5).
BiPAP Results: AHI = 11.3 (was 19.6second night), Central 2.4 wearing CVS Soft Cervical Collar. Brief interruption in sleep around 22:38to release air build up in my stomach during a long cluster.
AutoCPAP History: AHI = 7.2 (Max Pressure 16 cm), Central = 2.2 (numbers are a 9 day average) I'm testing the BiPAP looking for an improvement over my AutoCPAP device.
BiPAP Therapy settings Mode: VAuto Max IPAP: 15.0 Min EPAP: 8.0 PS: 4.0 Ti Max: 3.0s Ti Min: 0.3s Trigger: Med Cycle: Med Mask: Pillows
From a previous post, OA may be treated with an IPAP of 13.0, so for tonight I might try Min EPAP 9.0, PS 4.0, max IPAP 18.0
INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
RE: Changing Max Pressure and starting a BiPAP trial
Thanks for the advice Sleeprider.
The data for the third night was with a CVS Soft Cervical Collar (SCC), not the best aid, but a better one might show up today. I've read the wiki page on Positional Apnea, and the great results that some members have experienced with a SCC, but it may not work for everyone. Are there other positional aids?
Should I implement an aid to prevent sleeping on my back? Before I started on CPAP, the sleep doctor wanted me to sleep on my side. My wife had long wanted the same thing since I snored when I was on my back, and didn't when I was on my side, so I would often get a nudge in the night to turn on my side. CPAP completely eliminated snoring, so that was good for both of us. The aid I purchased had a substantial wedge on the back and rubber coated (for grip) elastic straps around the chest to hold the wedge on my back. I should have purchased the model that had short sleeves to anchor the aid to my shoulders because sometimes I would wake up and the wedge had rotated to my side. I'm willing to try that again.
I could get two long body pillows to make a pillow sandwich where I am the meat, lying on my side, with one pillow pushed against the wall and my arms around the other pillow.
Maybe I can do another home sleep study, or purchase an orientation sensor to strap to my chest to get data to correlate sleep position with OA events.
Appreciate any guidance on figuring out how to reduce OA clusters.
INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
03-14-2023, 05:22 AM (This post was last modified: 03-14-2023, 05:24 AM by Lampshade. Edited 1 time in total.)
RE: Changing Max Pressure and starting a BiPAP trial
Sleeprider and Gideon, you guys rock! You were right when you looked at my data and saw a strong positional apnea signal.
Fourth night of BiPAP
Changes from third night: left side sleeping with a soft cervical collar. Position maintained by my back pushed against pillows on a wall, and thick pillows in front to support my chest, arm and leg.
BiPAP Results:AHI = 1.6 (was 11.3third night), Central 0.9
AutoCPAP History: AHI = 7.2 (Max Pressure 16 cm), Central = 2.2 (numbers are a 9 day average) I'm testing the BiPAP looking for an improvement over my AutoCPAP device.
BiPAP Therapy settings Mode: VAuto Max IPAP: 18.0 Min EPAP: 9.0 PS: 4.0 Ti Max: 3.0s Ti Min: 0.3s Trigger: Med Cycle: Med Mask: Pillows
I wish I could plot the OSCAR data, but I forgot to return the SD card to the device!
Below is the 1 day summary data recorded on the device.
Pressure 14.0
Exp. Pressure 10.1
Leak 0
Vt 520 ml
RR 12
MV 6.5 L/min
Ti 1.5s
I:E 1:2.2
Spont Cyc 99.0%
AHI 1.6
Total AI 1.6
Central AI 0.9
INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
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