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+--- Thread: Central Apneas Increase After Changing to Newer BiPAP (/Thread-Central-Apneas-Increase-After-Changing-to-Newer-BiPAP)
RE: Central Apneas Increase After Changing to Newer BiPAP - SarcasticDave94 - 04-29-2021
Copy.
RE: Central Apneas Increase After Changing to Newer BiPAP - tanayaray4 - 04-30-2021
so these are a couple of pictures after the OSCAR update. [attachment=31867][attachment=31868]
RE: Central Apneas Increase After Changing to Newer BiPAP - Sleeprider - 04-30-2021
The event rates are similar to the beta version. We can see that the best results were achieved with a pressure support of 5.0 at 6.4-17 pressure. Therapy is historically fragmented into many sessions. I think it is best to focus on dialing back the pressure support to 4 or 5 and we can go from there. Why is therapy so fragmented? Many mask removals and sleep sessions at various times of day and night.
RE: Central Apneas Increase After Changing to Newer BiPAP - Gideon - 04-30-2021
Sleeprider nailed it. See the change in settings, then bam, CA goes significantly up.
RE: Central Apneas Increase After Changing to Newer BiPAP - SarcasticDave94 - 04-30-2021
A case of PS putting CO2 flushing into overdrive then Centrals jump.
RE: Central Apneas Increase After Changing to Newer BiPAP - upsman - 04-30-2021
She claims to have set the PS to 4, but it's still showing 8. I'm not familiar with the AirCurve menus, but is there a step to save the settings when done?
Also, she is having problems changing the date and time on the new machine. She gets a message that the date cannot be set in the past. Could this just be the difference in the time where she is, and the setting she is trying to change?
She will be posting an updated OSCAR chart shortly. There's a 9.5 hour difference in time zones from EST to India so I don't know exactly when it will show.
RE: Central Apneas Increase After Changing to Newer BiPAP - Crimson Nape - 04-30-2021
There isn't a "Save" feature. Any parameter modified is written to the system as you exit the parameter. So my last sentence will make sense, here are the steps. You will scroll to and highlight the option you wish to change. You then press the big knob to enter the "edit" mode. Make the desired change and then press the big knob again to exit. At that point the edit is written to the system.
The reason she is unable to change the time is based on the VAuto having sleep data for the new time. After saving the current data on the SD card, reformat it and the AirCurve will allow you to change the time. Just make sure that the AC10 isn't used prior to setting the new time/date.
RE: Central Apneas Increase After Changing to Newer BiPAP - SarcasticDave94 - 04-30-2021
Also in pressure settings, once in clinical mode via pushing Home and Dial in together for 5 seconds, scroll down to whichever item needs edited, click Dial to enter the edit function, turn Dial to edit up or down, then click Dial again to exit the edit and also that locks that edit in place. Then you can click Home to go to the top of clinical and click exit.
[split] Central Apneas Tanayaray4 - tanayaray4 - 05-01-2021
this is today, after changing the pressure support
RE: [split] Central Apneas Tanayaray4 - Sleeprider - 05-01-2021
(05-01-2021, 05:35 AM)tanayaray4 Wrote:this is today, after changing the pressure support
Tanayaray4, as I understand it, you are the individual upsman has been posting for. Welcome to Apnea Board. Your most recent results seem to have exposed a high rate of central apnea. We can't be certain that it was not present with your old machine, but it sure looks like two different people. Anyway, the problem is there now. A Vauto is not capable of treating central apnea. The appropriate machine for that is ASV.
Looking at your most recent results, you have revised your settings from 8.8 cm of pressure support down to 4 cm. This has had the desired effect of reducing your incidence of CA events from over 21 over 60% to just over 7 per hour. It appears we are on the right track. Your current settings are EPAP min 6.0, IPAP max 18.0 and PS 4.0. I can't tell if you have also changed the trigger sensitivity setting to high, but we want to see that happen. It appears you need somewhat higher minimum pressure, and the only additional change we need to try at this time is to further reduce the PS setting to 3.0. Other than the central apnea events, your respiration statistics look very good. Let's move the EPAP min setting to 8.0 and your PS to 3.