long Hypopneas on VPAP Adapt

[1210donna]

I have Mixed Apnea and have moved from a CPAP Adapt S9 onto a VPAP Adapt.... everything improved... on CPAP I was having insp time that was twice the duration of exp time, my tidal volume and respiratory rates were lower, my AHI, though fairly well managed was still 3 times higher, I had clusters of centrals that could be cumulatively as much as 5min out of 9 not breathing and hypopneas as long as 130 secs....on the VPAP Adapt the exp time is now double the Insp time (yay), the tidal volume and resp rates are better, the AHI is 1/3rd of what it was, no more intensive clusters of centrals... all great... just I see I'm still having some long hypopneas... sure, I expect I'd still have some... maybe 10 or 20 secs duration.... but I'm still having 40-60 sec hypopneas... not that many... just 9 of these long ones in 30 days of recording.. but because I had 130 second hypnopnea on CPAP I worry that VPAP Adapt is not able to manage these lengthy hypopneas either.

I know they are few, but given VPAP Adapt is a great machine and designed to address a case like mine (autonomic dysfunction), shouldn't I expect that events wouldn't be longer than 10-20 secs now?

And if these 40-60 sec hypopneas increase to 90-130 sec ones... what else can be done?

Donna

[letsride]

I have Mixed Apnea and have moved from a CPAP Adapt S9 onto a VPAP Adapt
Donna

I'm Confused by your first sentence, you have a s9 vpap adapt ~ Which mode are you using cpap or Asv?

I use mine in Asv and it has virtually eleminated all the different types of events.

What are your settings?

[JohnBFisher]

I have Mixed Apnea and have moved from a CPAP Adapt S9 onto a VPAP Adapt.... everything improved... on CPAP I was having insp time that was twice the duration of exp time, my tidal volume and respiratory rates were lower, my AHI, though fairly well managed was still 3 times higher, I had clusters of centrals that could be cumulatively as much as 5min out of 9 not breathing and hypopneas as long as 130 secs....on the VPAP Adapt the exp time is now double the Insp time (yay), the tidal volume and resp rates are better, the AHI is 1/3rd of what it was, no more intensive clusters of centrals... all great... just I see I'm still having some long hypopneas... sure, I expect I'd still have some... maybe 10 or 20 secs duration.... but I'm still having 40-60 sec hypopneas... not that many... just 9 of these long ones in 30 days of recording.. but because I had 130 second hypnopnea on CPAP I worry that VPAP Adapt is not able to manage these lengthy hypopneas either.

I know they are few, but given VPAP Adapt is a great machine and designed to address a case like mine (autonomic dysfunction), shouldn't I expect that events wouldn't be longer than 10-20 secs now?

And if these 40-60 sec hypopneas increase to 90-130 sec ones... what else can be done?

Donna

Greetings Donna! If you check the statistics (in SleepyHead or ResScan) you should see that as the hypopnea increases, your VPAP Adapt should also increase the pressure. That's how it is addressing your issue. Reduced flow (either form an apnea or hypopnea) should result in increased pressure to help sustain respiration. An ASV machine, such as yours, is pretty aggressive at keeping your flow rate consistent. This helps break the cycle that traditionally leads to clusters of central apneas.

Hope that helps.