Cheyne-Stokes (CSR) - benign or concerning?

Attached is report from Resmed Airsense 11 in Airset mode. In searching this board the references to CSR vary between "it's a big deal to inconsquential'. So should I be concerned or not with the attached report. I will note that apparently the Resmed algorithm does not seem to have a device reaction (no alteration in pressure) - so maybe it's benign, but if so why highlight it in the AHI report panel.)

I will leave this to members with more expertise than I have, but a few questions for you: is this a recent development? Have you seen something similar on other nights? With or without CSR flagging, is your central apnea index often higher than 5?

A general point: the kind of machine you have doesn't have the capacity to do anything about central apneas, whether they occur as a part of periodic breathing or not. In other words, it's not an algorithm issue. The type of machine used for central apnea provides ASV (adaptive servo-ventilation).

Miss Emerita wrote: ↑

Fri Nov 12, 2021 1:54 pm

I only have data from Oct 17 forward (Oscar only recently available), but from Oct 17-Nov 5 there were no CSRs,then
Nov 6 2.7%
Nov 7 9.3%
Nov 8 20.2%
Nov 9 thru today 0%
The Clear airway index (excluding these 3 days) is generally around 0.2
AHI for the period from Oct 17 to Nov 11 and excluding these three days is 2.04

Bump.

I have had similar experience but not quite so extravagant. I increased my minimum pressure to 12 and max press to 20 (from 8-11). Doing so got rid of the clumps of ca that I was having and lowered my AHI. Looking at your settings it appears that your minimum pressure is to low. If you are inclined to do so, I would raise to say 10. Your issues were occurring at a pressure of around 5 or 6...

Hope this helps

Dataq1, I'll do what I can here.

There was one other question I should have asked. Have you been sleeping at high altitudes recently?

Periodic breathing (to use a generic term) is not necessarily a cause for concern, though Cheyne-Stokes respiration, a sub-category of periodic breathing, is often associated with congestive heart failure or other underlying disease processes. There's more information here:

https://www.sleepfoundation.org/sleep-a ... spirations

The pattern of the periodic breathing you've posted has roughly the general look of CSR, but the fact that it is not occurring regularly suggests that it may be non-CSR periodic breathing. For your peace of mind, you might want to print out a screen shot like the one you posted and discuss it with your physician. But honestly, I wouldn't bother unless you start seeing it again.