01-16-2023, 07:45 AM
Struggling finding the right settings for flow limitations
Dear All,
I had a “Resmed Airsense 10” for 3 years, but did not recover.
Recently we’ve found out that I do have a lot of flow limitations and the remaining AHI of about 6 consists of central apneas.
Therefor I received a BiPap (Resmed Aircurve 10) about 5 weeks ago.
It was configured with this settings:
Modus: vauto
Max ipap: 12
Min epap: 4
PS: 4
Ti max: 0.6
Ti min: 0.5
Trigger: Med
Cycle: Med
Breathing is easier, but i still had a AHI between 4 and 5 (mainly central).
Also i still do have a lot of flow limitations.
I told my careprovider after a week, but due to circumstances nothing happened so far, so I started trying things myself.
I did read that raising the “Trigger” value could help lowering the central apneas, so I raised it from “Medium” to “High”.
This had the result that the my AHI is now between 1 and 3.
Still all central apneas.
The flow limitations picture.
When zooming in.
I also found out that “inspiration time” was always the same.
It's 0.6 seconds everytime.
It looks like it is always between the Ti Min and Max values and that it cuts off my inhalation because it’s falling back into EPAP modus to soon.
I think it should look like this.
I raised Ti Max to 2.5 and this resulted in an inhalation time that fluctuates more and has an average of 1.6 seconds.
It also feels like it blows more air into my nose.
Also there are more periods with round flow curves.
Still there are flow limitations, but less than before.
The change to Ti Max seems to have some effect on the flow limitations, however the AHI with central apneas goes up to around 10.
Also these apneas last longer. One time I even hit 87 seconds. (normally 10-20)
Experimenting with the Trigger, Cyle, Ti Min/Max and PS does not help me to lower the central apneas.
I now ended with the default settings and the “Trigger” on “High”, which seems to work best for now.
Does anybody have an idea why the central apneas go up when I raise the Ti Max ?
Thanks for reading.
I had a “Resmed Airsense 10” for 3 years, but did not recover.
Recently we’ve found out that I do have a lot of flow limitations and the remaining AHI of about 6 consists of central apneas.
Therefor I received a BiPap (Resmed Aircurve 10) about 5 weeks ago.
It was configured with this settings:
Modus: vauto
Max ipap: 12
Min epap: 4
PS: 4
Ti max: 0.6
Ti min: 0.5
Trigger: Med
Cycle: Med
Breathing is easier, but i still had a AHI between 4 and 5 (mainly central).
Also i still do have a lot of flow limitations.
I told my careprovider after a week, but due to circumstances nothing happened so far, so I started trying things myself.
I did read that raising the “Trigger” value could help lowering the central apneas, so I raised it from “Medium” to “High”.
This had the result that the my AHI is now between 1 and 3.
Still all central apneas.
The flow limitations picture.
When zooming in.
I also found out that “inspiration time” was always the same.
It's 0.6 seconds everytime.
It looks like it is always between the Ti Min and Max values and that it cuts off my inhalation because it’s falling back into EPAP modus to soon.
I think it should look like this.
I raised Ti Max to 2.5 and this resulted in an inhalation time that fluctuates more and has an average of 1.6 seconds.
It also feels like it blows more air into my nose.
Also there are more periods with round flow curves.
Still there are flow limitations, but less than before.
The change to Ti Max seems to have some effect on the flow limitations, however the AHI with central apneas goes up to around 10.
Also these apneas last longer. One time I even hit 87 seconds. (normally 10-20)
Experimenting with the Trigger, Cyle, Ti Min/Max and PS does not help me to lower the central apneas.
I now ended with the default settings and the “Trigger” on “High”, which seems to work best for now.
Does anybody have an idea why the central apneas go up when I raise the Ti Max ?
Thanks for reading.
