Question about Cheyne-Stoke breathing

[TheHu]

Thanks for the two infos (links). 
It was really very enlightening to read the two wiki articles. 
I hope this works for me.

I will get a soft neck brace today and test it.

I know that the chances of finding the right neck brace will be hard, but I am confident to find the right one for me.

I will keep you informed about the (hopefully) positive development in terms of SCC.

[TheHu]

My first day with a soft neck brace

Hmmm, what do you think about this night?

any suggestions?

   

[TheHu]

Second Night with a soft neck brace.

Massive leaks.

What could have caused these leaks? 

Note: I didn't have a dry mouth after waking up, but I did have slightly inflamed eyelids.

Could it be that despite a neck brace, my chin is folded down and caused the leak?

   

   

   

[multicast]

I presume your mask, the diva of all masks, the infamous F30(i) isn't properly adjusted. See https://www.youtube.com/watch?v=JMcMy7DoEeI and other videos of that channel how to proceed.

(Ist auf deutsch, also auch was für den Österreicher. Die Einstellung der Maske hat schon manchen an den Rand der Verzweiflung getrieben und braucht Nerven wie Drahtseile und eine Engelsgeduld. Vielleicht ist auch https://forum-schlafapnoe.de/threads/all...ost-136492 sowie https://forum-schlafapnoe.de/threads/wie...ost-136462 hilfreich.)

Mike

[TheHu]

NOTE: Sorry, the screenshots were not in English, so i post them again in english.

Second Night with a soft neck brace.

Massive leaks.

What could have caused these leaks? 

Note: I didn't have a dry mouth after waking up, but I did have slightly inflamed eyelids.

Could it be that despite a neck brace, my chin is folded down and caused the leak?

   

   

   

[Gideon]

Inflamed eyelids may indicate a mask leak near the eyes which can be really irritating.

Adjust mask.

[Sleeprider]

Hu, what size soft cervical collar did you buy? They come in different heights and circumferences.

[multicast]

And again: the mask isn't properly adjusted -- it'll take some time for the F30. (Did you read the links I've posted?) Or the mask has contact with your pillow: always sleep on one side of the pillow such that the mask protrudes the pillow.  Or the mask hasn't the right size.  Or the tube has a hole.

Mike

[TheHu]

The dimensions of the collar:

Length: 62 cm / 24,4 inch
Chin height: 9.0 cm / 3,54 inch

The collar has a recess for the larynx, and is slightly rejuvenated in the chin area. 

(Link: ttps://www.amazon.de/Bort-Cervicalstütze-Eco-2-blau/dp/B0041M7DM6/ref=sr_1_9?crid=11NE2HNGAR7A2&keywords=halskrause+mensch&qid=1661169183&sprefix=halskrause%2Caps%2C117&sr=8-9)

I have been wearing the collar for three days now, and I am still clear whether it is the right one for me. 

The length fits,but I'm still a bit undecided about the height. I can still move the chin down 1-2 (0.4-0.78 inch) centimeters. And I'm still looking for the best setting not to get the collar too tight around the neck. 



@mike (multicast)
Yes, I read the links and watched the video. Very revealing. The large leaks do not occur every night, but rather in a rhythm of 2-3 days. I'm trying my best to improve the settings for the F30i as described in the video, but that takes time, as you know. Therefore, I will not try to optimize the F30i at this time to exclude possible further sources of error for the self-experiment with neck brace. 
Auf Deutsch: Die Optimierung der F30i werde ich gerne nach dem Selbstversuch mit der Halskrause durchführen, eins nach dem anderen   



Third Night with a soft neck brace.

Hmm, no big leaks, but the AHI value is greater than yesterday.


   

   

   

[Sleeprider]

TheHu, could you zoom into a resolution of 3-minutes so the wave forms are more clearly displayed where the periodic breathing is happening. It would help to see the individual breaths rather than the pattern.