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+--- Thread: Do I need to increase my max pressure? (/Thread-Do-I-need-to-increase-my-max-pressure)
Do I need to increase my max pressure? - Daveman - 03-28-2024
Seems like I'm topping out?
RE: Do I need to increase my max pressure? - Expat31 - 03-28-2024
We can't tell at the moment.
First thing you needed to do is to post the following graphs in this order, so we can review properly:-
Events
Flow rate
Pressure
Leak rate
Flow limitations
Please resize your graphs to show the above clearly, and remove the calendar to give more space. Thanks.
RE: Do I need to increase my max pressure? - Expat31 - 03-28-2024
Also you have omitted the first sleep segment of 6hrs 52 mins.
RE: Do I need to increase my max pressure? - Daveman - 03-28-2024
Is this better? (I'm fairly new to using Oscar)
RE: Do I need to increase my max pressure? - Sleeprider - 03-28-2024
If you turn on EPR, full-time at setting 3, your pressure will settle down and your flow limits will be reduced significantly. Pressure is rising because of detected flow limitation, which the Resmed Airsense Autoset uses as a signal to "raise pressure now". As long as the flow limits are there, your Autoset will try to raise pressure to the limits of the settings. With EPR, your 95% flow limitation will drop from 0.17-0.19 to less than 0.1. Once we see the results, we can consider your pressure. Flow limitation is the cause of respiratory effort related arousals, hypopnea and a precursor of obstructive apnea. Read the wiki. https://www.apneaboard.com/wiki/index.php?title=Flow_limitation
RE: Do I need to increase my max pressure? - Daveman - 03-29-2024
Here are my numbers from last night after turning on EPR.
RE: Do I need to increase my max pressure? - Sleeprider - 03-29-2024
You're on-target for flow limits dropping from 0.19 to 0.08, but you need higher minimum pressure to avoid the obstructive events. With EPR will often use bilevel pressure notation. Your minimum pressure right now is 9.0/6.0 (IPAP/EPAP). We use EPAP to prevent obstructive events, and IPAP to provide ventilation for reduction of flow limits, snores, RERA and hypopnea. Clearly your obstructive threshold is higher than 6.0 cm. We can solve this by raising minimum pressure to prevent the OA. Your current minimum is 9/6, so let's titrate incrementally upward to 10/7 then 11/8 and see what it takes to reduce the OA. Maximum pressure is less important, but you probably want to keep it 2 to 3 cm above minimum.
RE: Do I need to increase my max pressure? - Daveman - 03-29-2024
Thank you so much! I'll bump up the min. as noted.