(06-01-2019, 06:45 PM)KallyA Wrote: Thank you for your response, Sleeprider.
Yes, using the cervical collar definitely reduces the large leaks with the Amara mask, where LL is defined as anything over 50 L/min. It seems like the machine responds well with leaks under this level.
About the last charts posted, I was framing what appeared to be drops in pressure during high leakage from 22:25-23:15. I was wondering if the ASV might be missing events during those times. There are no events shown at all during the times the pressure drops there. Here I will post the full night again, and then zoom into some two minute windows where the leaks are particularly high. Here is the full night:
The next two are from 22:48-22:50. I am not sure whether the ASV is showing accurate wave pattern here because we have fairly low pressure/high leakage/high respiration rate. What do you think? This is my main concern .. can you tell (or do you suspect) the ASV is unable to show events at this leakage rate? Is this what it would look like if it were missing events?
The ASV is showing approximately your median respiration rate and volumes in this segment and there are no gaps or pressure increases that would go with events. This looks fine.
Quote:The next two are from 22:51:15-22:53:15 with an event. Though the leak rate is high, pressure is high/variable and the respiration rate has declined. Here the ASV appears to be able to see the event in spite of the large leakage. This looks like a normal response from the ASV. Do you agree?
The ASV appears to be responding as expected here. The zoom is not close enough to see the flow rate clearly.
I have more to learn about breath rate, tidal volume, minute volume. In particular, I don't know what constitutes shallow breathing vs. normal. I see the breath much more constricted during A&H. I see a lot of breathing around 20 bpm in my charts. What does shallow and fast breathing represent?
Thanks ahead for your response. You've been very informative.[/quote]
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