[Health] Interpreting sleep study results, EERS enhanced expiratory rebreathing space

[JoeyWallaby]

I found these studies on flow limitations and waveforms https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4688581/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5566295/ https://www.ncbi.nlm.nih.gov/pubmed/19327180

Based off these studies, I've looked at the waveforms closer.

• Auto CPAP EPR 3 with extra EERS
  

Good but a significant amount of Class 2, 4 and 7.

• Auto CPAP EPR 3 Standard EERS
  

Decent. Prolonged periods of shallow breathing with significant Class 6. Periods of normal breathing are similar to the above chart with extra EERS.

• Auto CPAP EPR 1 no EERS
  

Bad. Breathing significantly shallower than with EPR 3 or EERS (only 280 median tidal volume). Almost everything is Class 6 or 7.

• Auto BiPAP pressure support 4 no EERS
  

Good. Some class 7 at points but better than other charts. Main concern is periods of shallow breathing with more significant Class 6 or 7 (second picture), shallow breathing possibly caused by REM sleep?

• Auto CPAP EPR 1 Standard EERS
  

Bad. Significant amounts of all. Class 4 most common followed by 2 and 7.

• Auto CPAP EPR 3 no EERS
  

Bad. Breathing significantly shallower than with EERS (only 300 median tidal volume). Almost everything is Class 7.

[mper6794]

Hi, Joey, good job!

I have been indicating this Dr. Guilliminaut paper on my thread as well. It has been very useful for me on identification of RERA's in general, even those preceded by something ridiculous (in number of breaths and recution), yet, deleterious.

good luck

[mper6794]

Auto CPAP EPR 1 Standard EERS (data from one night) data from here #58


Auto CPAP EPR 3 Standard EERS (data from one night) data from here #69

Hi, Joey

from my side, my opinion keeps the same as before/above.

good luck

[slowriter]

Should I try BiPAP again? EERS has significantly improved both tidal volume and amount of central apneas but the BiPAP waveforms look significantly better to me. What do people think?

I would defer to sleeprider and bonjour, but my view: yes!

Try it and see if the CAs reappear with the EERS.

[JoeyWallaby]

Charts from last night with extra EERS. I think I need a replacement mask.
Full data https://www.mediafire.com/file/v5nuhgpkk...S.zip/file (password apneaboard)

[JoeyWallaby]

If I bought/rented a BiPAP, what settings should I start with?

[mper6794]

Hi, Joey
Great acquisition!
Just because i am already in your case, It might be i would be able to help you getting your fine-tuned EPAPmin and PS ,IPAPmax, say, within some 15 days, depending your tolereance to PS, normal RR while sleeping, and so on.
Would you willing to follow the semi-quantitative methodology i have been trying to introduce, or at least, something of It, always taking into condiderations your suggestions, of course?
Please, refers to my thread, most recent posts.
Please, could you Tell me what your basic on Excel, counting manually arousals, RERA (flagged or not). You appears better than me, actually.

I Will return later.

All the best.

[Sleeprider]

If I bought/rented a BiPAP, what settings should I start with?

Bilevel pressures fixed at IPAP 12/ EPAP 8 (PS4).
Bilevel Auto  IPAP 16 EPAP 7 PS 4.

Your need for EERS would continue with bilevel, but you have not apparent CA at this time. I have no idea what your current therapy would look like if you removed EERS.  If CA remained low without EERS, you would have show adaptation to the CPAP and current EPR. If it jumps up, then clearly EERS would need to continue.

[JoeyWallaby]

First night bilevel. S9 vauto. Ignore the leakage, my mask is damaged. New one in mail. No EERS.
Data (password apneaboard) https://www.mediafire.com/file/3f6akxsxh...p.zip/file

Mode
VAuto

Max IPAP
20

Min EPAP
7.6

PS
3.4

Ti Max
2.4

Ti Min
0.8

Trigger
Med

Cycle
Med

Max Ramp
Off


Summary

Events




Waveforms

[slowriter]

A lot of mask leaks again. Seems you need to resolve those.