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Do flow limitations typically cause oxygen desaturation?
#1
Do flow limitations typically cause oxygen desaturation?
If AHI is 0 but oxygen levels still drop in the 80's, can flow limitation be the culprit behind the decrease in blood oxygen levels?
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#2
RE: Do flow limitations typically cause oxygen desaturation?
A single flow limitation, i seriously doubt it. But an extended series of flow limitations near 50% reduction, that is certainly possible. Are RERAs present?
Fred Bonjour - Project Manager and Lead Tester for OSCAR - Open Source CPAP Analysis Reporter 
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#3
RE: Do flow limitations typically cause oxygen desaturation?
The vauto does present rera but the flow graph doesn't have some flattening to the inspiratory curve
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#4
RE: Do flow limitations typically cause oxygen desaturation?
If you would like specific responses post your charts showing what you have questions about.

Height and volume both come into play on breathform evaluation.
Fred Bonjour - Project Manager and Lead Tester for OSCAR - Open Source CPAP Analysis Reporter 
OSCAR

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INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
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#5
RE: Do flow limitations typically cause oxygen desaturation?
Ok. Will post charts when I get home thanks
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#6
RE: Do flow limitations typically cause oxygen desaturation?
I have the vauto and it does not display Rera’s.
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#7
RE: Do flow limitations typically cause oxygen desaturation?
(08-07-2019, 03:19 PM)yankees123 Wrote: I have the vauto and it does not display Rera’s.

AirCurve 10 does not show RERAs but you can identify them visually as series of diminshing flow-limited breaths followed by recovery breath, like these:


[Image: CMICraX.jpg]

[Image: wRyiynT.jpg]
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#8
RE: Do flow limitations typically cause oxygen desaturation?
Yes you are correct, I meant it doesn’t exactly point out the rera’s but like you said looking at the flow chart you can identify them.
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