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Potential for iVaps mode to help with UARS
#1
Potential for iVaps mode to help with UARS
Has anyone looked at machines that can do iVaps? They are pretty much a ventilator. From my understanding you set inhale/exhale pressures, target breathing rate per minute, and volume. The machine will ensure your breathing matches these settings. Differs from the usual BiPAP where you have to actually start to draw in air before the machine will boost your pressure up.
My Resmed machine has been modified with an unlocked ROM (AirBreak) which enables all these options for me.

I have had a lot of issues in trying to fully treat UARS. I'm keen to try something else, and the iVaps mode may be worth a shot. I should add that I think I'm a very shallow breather, at least during the day. I'm a 6' tall male but my tidal volume is often only in the mid 400s, so hoping the iVaps mode can help bring that up.
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#2
RE: Potential for iVaps mode to help with UARS
With UARS tidal volume may be affected, but the real issue is time of inspiration is relatively long reflecting respiratory effort. Tidal volume alone is not a good measure of the airway proficiency, and if you want any further opinion on that, post some Oscar charts. Personally, I think iVAPS would be a tremendous waste of resources for inspiratory flow resistance and would guide you to consider the Aircurve 10 Vauto instead.
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#3
RE: Potential for iVaps mode to help with UARS
So I slept last night with iVaps. Settings:
Height: 185cm
Target Pt Rate: 14.0, I dropped this to 13.0 in the middle of the night when I woke as the inhale/exhale frequency was a bit high. I think I'll lower this to 12 tonight.
EPAP: 5
Min PS: 4
Max PS: 9

AHI of 0

My average tidal volume was up to 540 over the course of the night. I probably only got about 6 hours sleep. Last night was the first night in as long as I remember that I've not needed to use the toilet in the middle of the night, and didn't even need to go when I woke. No other modes have done this, and I've experimented a heck of a lot with different CPAP pressures and BiPAP pressure ranges. In the past I've found that lower exhale pressures (under 6.6) would cause me to wake up at least twice in the night to use the toilet, but I'd sleep for a good 8 hours and brain fog slowly got worse. Higher exhale pressures would mean I'd only need to get up once to use the toilet, but I would wake up early, often only getting 5-6 hours of sleep, which was exhausting on the body, but the brain fog wasn't quite as bad.

I feel OK, not markedly better but I only got 6 hours sleep so I don't expect miracles. The brain fog certainly isn't any worse than yesterday, probably a bit better.
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