+- Apnea Board Forum - CPAP | Sleep Apnea (https://www.apneaboard.com/forums)
+-- Forum: Public Area (https://www.apneaboard.com/forums/Forum-Public-Area)
+--- Forum: Main Apnea Board Forum (https://www.apneaboard.com/forums/Forum-Main-Apnea-Board-Forum)
+--- Thread: Dugy40 [Doug's Therapy Thread] (/Thread-Dugy40-Doug-s-Therapy-Thread)
RE: Dugy40 [Doug's Therapy Thread] - GuyScharf - 08-16-2020
How about zooming in on the flow graph to about 4 minutes so we can see the shape of the curve?
RE: Dugy40 [Doug's Therapy Thread] - Dugy40 - 08-16-2020
(08-16-2020, 09:14 AM)GuyScharf Wrote: How about zooming in on the flow graph to about 4 minutes so we can see the shape of the curve?
[attachment=25682] like this?
RE: Dugy40 [Doug's Therapy Thread] - Dugy40 - 08-16-2020
(08-16-2020, 09:25 AM)Dugy40 Wrote:(08-16-2020, 09:14 AM)GuyScharf Wrote: How about zooming in on the flow graph to about 4 minutes so we can see the shape of the curve?
like this?
or this [attachment=25683]
RE: Dugy40 [Doug's Therapy Thread] - Gideon - 08-16-2020
I'm seeing flat tops on many of those breaths fo they are flow limited. I don't see a cause in the charts.
RE: Dugy40 [Doug's Therapy Thread] - Dugy40 - 08-16-2020
(08-16-2020, 10:18 AM)bonjour Wrote: I'm seeing flat tops on many of those breaths fo they are flow limited. I don't see a cause in the charts.
Flat tops mean flow limited? What’s that mean? It scares me that no one can explain what’s going on. My suggestion was nose buried into pillow? There’s only one vent on the airlift n20.
RE: Dugy40 [Doug's Therapy Thread] - GuyScharf - 08-16-2020
Yes, like the second one.
My first impression is that this looks like normal breathing, with inhalations partly blocked (thus, flat tops on the graph) by flow limitations. You seem to have an almost steady flow limitation during this time. A flow limitation suggests a partial airflow restriction or the beginning of airway collapse, though not enough to be a hypopnea. It could be caused by your position; if your neck is bent you could be restricting something in your airflow.
I don't think partial blocking the vent would have this result. I think partial blocking would cause an arousal.
RE: Dugy40 [Doug's Therapy Thread] - Dugy40 - 08-16-2020
(08-16-2020, 11:26 AM)GuyScharf Wrote: Yes, like the second one.So pretty strange? I hope some more people give their opinion.
My first impression is that this looks like normal breathing, with inhalations partly blocked (thus, flat tops on the graph) by flow limitations. You seem to have an almost steady flow limitation during this time. A flow limitation suggests a partial airflow restriction or the beginning of airway collapse, though not enough to be a hypopnea. It could be caused by your position; if your neck is bent you could be restricting something in your airflow.
I don't think partial blocking the vent would have this result. I think partial blocking would cause an arousal.
RE: Dugy40 [Doug's Therapy Thread] - GuyScharf - 08-16-2020
Not really strange. I see the same patterns occasionally in my wife's OSCAR results. The only way to really confirm the cause would be an overnight video and comparing the video timestamp with the OSCAR graphs.
RE: Dugy40 [Doug's Therapy Thread] - Dugy40 - 08-16-2020
(08-16-2020, 02:08 PM)GuyScharf Wrote: Not really strange. I see the same patterns occasionally in my wife's OSCAR results. The only way to really confirm the cause would be an overnight video and comparing the video timestamp with the OSCAR graphs.
Do you have a suspicion?
RE: Dugy40 [Doug's Therapy Thread] - Gideon - 08-16-2020
We might, only might be able to see something if you can post the start of this series of flow limits. One issue I have seen at times is if there is a long series of flow limits the machine 'thinks' this is normal. I understand that this is because a moving average is used in the calculation. Ask yourself, how does the machine determine 'my' normal, not yours but mine. What's the difference? Likey the difference in that moving average.