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Higher Exp time than Insp time ,help!
#1
Higher Exp time than Insp time ,help!
Hello! 


Been using the my APAP since September now so A little over half a year! Can definitely feel it when I don't use it, but even I do use it I don't feel dramatically better or anything, just less bad. 

I have been paying attention to my numbers though and it seems most of the time, my 95% and my Max ratio's my EXP. Time seems to be higher than my INSP. Time. My medium is usually normal, though sometimes not. I've been dealing with a lot of Aerophagia in the morning lately too. I also wake up early in the AM and can't back to sleep. I did read here that OSCAR can calculate this wrong, but it's less likely on a Resmed machine like the one I have. 

I've added the normal view and a zoom in at 2 minutes with the Tidal Volume, and Insp exp close up.

Is this bad that my EXP. time is larger than my INSP. time? What could it mean? Am I reading too much into this?


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#2
RE: Higher Exp time than Insp time ,help!
First, normal respiration is longer expiratory time than inspiratory time, so you don't have a problem. Long inspiratory times are associated with airway resistance and flow limitation which makes taking in a breath harder and longer. We know that increasing pressure support (EPR) can help with flow limitation and shorten inspiratory time, however you are at the limits of your EPR at 3. Your flow rate chart shows evidence of minor flow limitation with some intermittent soft tissue collapse near the peak flow. The only tool you have remaining is increased minimum pressure, unless you move to the Vauto which can increase pressure support. In any event, your results look pretty good. Be assured your respiration cycle times are normal.
Sleeprider
Apnea Board Moderator
www.ApneaBoard.com

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