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CPAP to BIPAP Transition
#1
Recently repeated a Sleep Study. Data recommended a upgrade from CPAP to BiPAP 22/14 for 0 AHI @ 94.5% saturation.

Previous CPAP Settings:
ResMed S9
Min Pressure 8 cmH20
Mode: AUTO
AHI ~3.5

BiPAP Settings 1:
ResMed AirCurve 10
EAP 4 cmH20
IAP 25 cmH20
Mode: VAUTO
AHI ~12

BiPAP Settings 2:
ResMed AirCurve 10
EAP 14 cmH20
IAP 25 cmH20
Mode: VAUTO
AHI ~8.5

I'm struggling a bit with the migration to the BiPAP. AHI is definitely higher than when on CPAP and with the higher AHI is additional tiredness throughout the day.

General question is how to best configure the AirCurve 10 to reduce AHI and increase the effectiveness of my treatment.
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#2
You may have been prescribed bilevel because the pressure support can improve tidal volume, which may be related to your less than ideal SpO2 during the study. For the settings you described, you're missing some information. What is the prescribed pressure support (PS) for "BiPAP 1" and "BiPAP 2". What kind of events are making up the increased AHI? What is the average and 90% IPAP pressure being reported? Any chance you can post some data?

Technically, the Aircurve 10 is not a BiPAP, but is a VPAP (proprietory names).
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#3
Exactly. If the mode is VAUTO, then PS must be specified.

Admin Note:
JustMongo passed away in August 2017
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#4
Hi Boiler,
WELCOME! to the forum.!
Hang in there for more suggestions and answers to your questions and much success to you as you continue your CPAP therapy.
trish6hundred
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#5
IPAP MAX: 22
EPAP MIN: 14
PS: Not specified in Sleep Study report

PS on machine is 6.2

Respiratory Parameters: 10 Apneas ( 2 oa, 6 ca and 2 mixed) and 180 hypopneas. BiPAP to increase tidal volume.

Data: What data needs to be posted? Sleep Study and / or Machine Data
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#6
Hey Boiler, I was talking about your sleep data from the machine. Here is a tutorial on how to do it. There is so much information there, and it's really hard to guide you without knowing more about your machine settings, and knowing the type of events. https://sleep.tnet.com/reference/tips/imgur
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