air curve 10 asv settings

Hi my problem is after ramp time ends and the pressure increases the pressure is to long of a time, when ready to exhale the pressure is still flowing in.
I use a nose pillow. my settings are:
min epap 4.0
max epap 11.6

mim ps 3.0
max ps 10,0
unable to inhale/ exhale normally. air backs up in mouth.
Hope you can help.
Thank you,
Don

aarpdon wrote: ↑

Tue Dec 27, 2022 11:34 am

Hi my problem is after ramp time ends and the pressure increases the pressure is to long of a time, when ready to exhale the pressure is still flowing in.
I use a nose pillow. my settings are:
min epap 4.0
max epap 11.6

mim ps 3.0
max ps 10,0
unable to inhale/ exhale normally. air backs up in mouth.
Hope you can help.
Thank you,
Don

Your pressures are low enough that you really don't need the ramp. I suggest you turn it off. I'm running somewhat higher pressure and found that the transition from ramp to normal mode was too abrupt and would wake me - I got around it by not using ramp at all.

The machine will accommodate itself to your breathing pattern - start out breathing deeply and evenly and the machine will match you. If it does blow too hard, just blow back hard. This will cause the machine to back off and re-accommodate itself to you.

Don,

I believe the minimum time inhale setting (TI Min) on your machine is set too high. The setting needs to be reduced from the existing setting. I would suggest reducing it in small increments until you are able to breath comfortably. If it’s set too low you will feel like you are gasping for air.

Hope this helps,

Sam

Sam_01 wrote: ↑

Wed Dec 28, 2022 9:18 am

I believe the minimum time inhale setting (TI Min) on your machine is set too high.

There is no TiMin setting on an ASV.

Please don't guess about things like that.

It misleads people that are looking for help.

Don,

I apologize. Palerider is correct. I jumped in because I had an issue similar to yours, however, I did so without getting a full understanding beforehand.

Bad advice is worse than no advice at all. I hope you are able to resolve your issue quickly.


Sam

aarpdon wrote: ↑

Tue Dec 27, 2022 11:34 am

Hi my problem is after ramp time ends and the pressure increases the pressure is to long of a time, when ready to exhale the pressure is still flowing in.

Just trying to make sure that I understand what you are saying.

When you start to exhale, the pressure is still at IPAP and does not decrease to EPAP? Is that what you are trying to describe?

If that's the case, then we need to see the following settings for your machine:

Ti_min
Ti_max
Trigger
Cycle

My guess is that your Ti_min may be set too long. And you may need to change the Cycle as well.

Tell us those settings and we'll be able to provide some ideas on how to get the machine's changing from IPAP to EPAP and back in better synchronization with your breathing so that air isn't "backing up" into your mouth.

Sam_01 wrote: ↑

Wed Dec 28, 2022 9:18 am

Don,

I believe the minimum time inhale setting (TI Min) on your machine is set too high. The setting needs to be reduced from the existing setting. I would suggest reducing it in small increments until you are able to breath comfortably. If it’s set too low you will feel like you are gasping for air.

Ti_min should never leave you feeling like you are gasping for air: Ti_min is the minimum amount of time the machine will stay at IPAP before it is allowed to cycle to EPAP. As long as your inhalation is at least as long as Ti_min, your exhalation should cause the machine to cycle to EPAP.

Now, if Ti_max is set too short, then that can cause the machine to cycle to EPAP before you start to exhale. And that could lead to feeling like you're gasping for air at the end of your inhalation.

robysue1 wrote: ↑

Thu Dec 29, 2022 6:17 pm

If that's the case, then we need to see the following settings for your machine:

Ti_min
Ti_max
Trigger
Cycle

My guess is that your Ti_min may be set too long. And you may need to change the Cycle as well.

Tell us those settings and we'll be able to provide some ideas on how to get the machine's changing from IPAP to EPAP and back in better synchronization with your breathing so that air isn't "backing up" into your mouth.

The Resmed Aircurve 10 ASV DOES NOT HAVE THOSE SETTINGS. All those parameters are taken care of in software - there is no way to adjust them.

Thanks everyone for the FYI. You guy's and girls are great Happy New Year.....
I'm going to switch to full face mask (so I can blow back air and see if it helps) and see how it goes .
Can you explain the Min EPAP and Max EPAP and the Min PS and Max PS, which setting would increase air flow and decrease air flow.

Don

arpdon wrote:Can you explain the Min EPAP and Max EPAP and the Min PS and Max PS, which setting would increase air flow and decrease air flow.

EPAP, PS and IPAP are all linked.

EPAP is the exhale pressure
IPAP is the inhale pressure
PS is pressure support - the pressure increase needed to get from EPAP to IPAP.

EPAP + PS = IPAP.

EPAP is your exhale pressure and basically controls obstructive events such as obstructive apneas and snores. EPAPmin should be set to a comfortable low pressure for normal breathing. If an obstructive event is encountered, the machine will increase EPAP to overcome it. EPAPmax needs to be high enough that the machine can eliminate all (or most) of these obstructive events. If you're getting a lot of apneas (which are reported as UA) then increase the EPAPmax.

PSmin needs to be set at a comfortable level - I have mine on 3, which gives a comfortable inhale / exhale transition. A high PSmin will increase ventilation in normal breathing, but isn't really needed as the machine can adjust as required. Resmed recommend PSmax be >15 - this will allow the machine to send big puffs of air to get you breathing in the event of a central apnea.