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Inspiratory Flow Limitation
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wolson Offline

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Post: #1
Inspiratory Flow Limitation
Here is a very interesting paper on flow limitation that many of us (including me) have:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4688581/


Sleep Sci. 2015 Nov;8(3):134-42. doi: 10.1016/j.slsci.2015.08.003. Epub 2015 Sep 3.
The role of flow limitation as an important diagnostic tool and clinical finding in mild sleep-disordered breathing.
Arora N1, Meskill G1, Guilleminault C1.


Walt

Walter W. Olson, Ph.D., P.E.
Professor Emeritus
(This post was last modified: 01-25-2016 06:01 PM by wolson.)
01-25-2016 06:00 PM
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Sleeprider Online
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Post: #2
RE: Inspiratory Flow Limitation
Want to see flow limitation? This is one of the more severe examples I have see posted on the board. This also is accompanied by a remarkable inhale:exhale ration of nearly 3:1. The person who posted this has gone on to bilevel, and I have not seen any followup from that change.

[Image: attachment.php?aid=2011]

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01-26-2016 11:37 AM
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wolson Offline

Preferred Members

Posts: 92
Joined: Dec 2015

Machine: PRS1 C-Flex
Mask Type: Other
Mask Make & Model: Dreamwear
Humidifier: Remstar
CPAP Pressure: 10 cm H20 C-flex x3
CPAP Software: SleepyHead EncoreBasic

Other Comments:

Sex: Male
Location: Red Canyon, Lander, Wyoming

Post: #3
RE: Inspiratory Flow Limitation
(01-26-2016 11:37 AM)Sleeprider Wrote:  Want to see flow limitation? This is one of the more severe examples I have see posted on the board. This also is accompanied by a remarkable inhale:exhale ration of nearly 3:1. The person who posted this has gone on to bilevel, and I have not seen any followup from that change

There sure are a lot oh things going on here, and not all of it is flow limitation although that certainly is present. I am surprised the AHI is so low! There clearly will be a lot of RERA's so the RDI might be more pertinent here.

I would be interested to know BIPAP helped!

Walt

Walter W. Olson, Ph.D., P.E.
Professor Emeritus
01-26-2016 03:25 PM
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CPAP Software: ResScan SleepyHead EncoreBasic

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Sex: Male
Location: Where they make Respironics

Post: #4
RE: Inspiratory Flow Limitation
He posted at the beginning of January he at returned the APAP and was scheduled for a bilevel titration. Has not updated since. The AHI was okay, but the RERA was pretty intolerable, and he had very high H in previous submittals. Anytime we see restricted inspiratory patterns like that, it usually helps to get on a machine with higher low EPAP and good pressure support to support better ventilation.

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01-26-2016 05:35 PM
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