Periodic Breathing/Cheyne Stokes Breathing

[PAJerry]

I'm curious about Periodic Breathing (PB) and/or Cheyne Stokes breathing (CSB). Is it normal to have PB/CSB breathing patterns during the night? Is it typically more prevalent durning one sleep stage than another? At what point (as in percentage of the night) is PB/CSB acceptable? And is "CSB-like" patterns acceptable? By that I mean breathing patterns that look like CSB but for one parameter or another is not recorded as CSB but sure looks like it to the naked eye seeing the breathing wave graph?

Thanks.

[NapsZ]

Hi PAJerry, this is something I've been trying to find out about more myself (viewtopic.php?f=1&t=68516&st=0&sk=t&sd=a#p636169().

It seems like CS type events are more common during stages 1 and 2 of sleep, and less so during REM sleep:

http://www.ncbi.nlm.nih.gov/pubmed/15863639
http://www.sciencedirect.com/science/ar ... 947590070X

It can also occur while awake, but that tends to be people with heart or lung conditions.

As far as the link to complex sleep apnea is concerned, I've read that two factors are important to study:

(1) relation to applied CPAP pressure. In complex apneas, periodic and CS breathing will tend to rise with greater applied pressure. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2276128/
(2) relation to CO2 rebreathing, related to the dead space volume of the mask. Lots of discussion here: viewtopic/t48554/Non-Vented-Mask--Perio ... -Else.html

That's all I have. Others with more experience with using ASV to manage complex apneas, etc. please jump in!

[Guest]

Thanks, NapZ. I'll follow the links...I'm sure to learn something.