Thanks In advance.
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EPI (Expiratory pressure intolerance) on SH
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06-14-2019, 07:42 PM
EPI (Expiratory pressure intolerance) on SH
I read alot about EPI especially from Dr. Barry Krakow and I just wanted to know how does EPI look on a sleepyhead flow graph? I know how flow limitation (flattened I inspiratory curve) looks and was just wondering if anyone has an example of what expiratory pressure intolerance looks like on sleepyhead.
Thanks In advance.
06-14-2019, 10:29 PM
(This post was last modified: 06-14-2019, 10:32 PM by Sleeprider.)
RE: EPI (Expiratory pressure intolerance) on sleepyhead
EPR is easiest to see as the mask pressure chart. The inspiratory peak is the IPAP and the bottom of the expiratory wave is EPAP. The mask pressure is the pressure produced by the machine and transmitted to the mask. In this case, EPR is set at 3, and you can see it follows the respiratory Flow Rate. When an incomplete, flow limited breath or apnea occurs, the mask pressure stays near EPAP. But a full breath will use the full span of the EPR. When we say that EPR is really bilevel pressure, that means the EPR creates an EPAP pressure that sets the baseline pressure. Pressure support follows the user's respiration for IPAP, and if that breath does not occur, IPAP is not reached. That is just like the Vauto, but limited to 3-cm.
Sleeprider
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06-15-2019, 12:38 PM
RE: EPI (Expiratory pressure intolerance) on sleepyhead
Thank you for the explanation sleep rider
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