Hello Guest, Welcome to Apnea Board !
As a guest, you are limited to certain areas of the board and there are some features you can't use.
To post a message, you must create a free account using a valid email address.

or Create an Account


New Posts   Today's Posts

[CPAP] Interpretation of ResMed S9 Autoset results
#21
(11-19-2014, 07:12 AM)welshmike Wrote: Those 41 seconds of Centrals may look alarming but are possibly the result of my Beta blocker and other medication and my past training in underwater breath holding. I'm not alarmed them (edit: those Centrals) but must eliminate those Obstructives.

Hi welshmike,

There is quicky-varying Leak (spikes) right before each 44 second central. This is a little suspicious, because sometimes quickly-varying Leak can fool the machine into scoring a false CA.

Below are given ResScan instructions on how to change the scales on the graphs to see more detail near these events, to see if those two centrals were flagged validly:

For the bottom (detailed data) window, I suggest changing the vertical scale on Flow to -100 to +100, or perhaps -80 to +80, so it is easier to see what is happening close to the zero-crossing line (vertical axis). This is done in the Tools/Options pull-down menu.

After that, in the bottom (detailed data) window, move the whole Leak graph vertically until it is between the Event graph and the Flow graph. This is done with mouse by dragging left-hand legend area of Leak up or down, and drop it next to Flow. (Don't start the move until first hovering over the legend area until mouse changes to a drag handle.)

Then, in top (navagation) window, use mouse to click on one of the 44 second central apneas, so that the bottom detailed graphs will be centered on that event.

Then, in bottom (detailed data) window, zoom in the horizontal scale until only 5 minutes or less fills the screen horizontally, and look to see whether the quickly-varying Leak caused the Flow to be blown off its zero axis, causing the machine to falsely score a CA until the Flow drifted back and again become vertically centered across the Flow zero-crossing axis.

Membership in the Advisory Member group should not be understood as in any way implying medical expertise or qualification for advising Sleep Apnea patients concerning their treatment. The Advisory Member group provides advice and suggestions to Apnea Board administrators and staff on matters concerning Apnea Board operation and administrative policies - not on matters concerning treatment for Sleep Apnea. I think it is now too late to change the name of the group but I think Voting Member group would perhaps have been a more descriptive name for the group.
Post Reply Post Reply
#22
Thanks vsheline,

I've has a first bugled attempt at following your instructions and will go through them carefully again.

Mike
Death is not the greatest loss in life. The greatest loss is what dies inside us while we live.
http://en.wikipedia.org/wiki/Norman_Cousins
Post Reply Post Reply
#23
You can also try SleepyHead which is a little easier to use. Download link is at the top of every page.
PaulaO2
Apnea Board Moderator
www.ApneaBoard.com


Breathe deeply and count to zen.

INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.




Post Reply Post Reply




Possibly Related Threads...
Thread Author Replies Views Last Post
Sad Very Frustrated w Results BlueJay22 14 355 09-20-2017, 06:36 PM
Last Post: BlueJay22
  I changed my resmed AirSense 10 Autoset to auto jasonarmstrong 6 214 09-20-2017, 12:29 PM
Last Post: jasonarmstrong
  Returning To Therapy with Startling Results OldMarineOceanside 79 2,043 09-19-2017, 07:30 PM
Last Post: OldMarineOceanside
  Ramping on ResMed Airsense 10 Autoset victorndc 2 138 09-19-2017, 02:46 PM
Last Post: trish6hundred
  Oximeters-Target Results and Do you really get what you pay for? Orionsnet 18 999 09-18-2017, 05:53 PM
Last Post: aquanaut20
  Surprising results after surgery car54 4 203 09-15-2017, 05:49 PM
Last Post: trish6hundred
  Sleep Study Results HELP Please! sleepydwarf2014 14 803 09-13-2017, 10:50 PM
Last Post: HalfAsleep

Forum Jump:

New Posts   Today's Posts




About Apnea Board

Apnea Board is an educational web site designed to empower Sleep Apnea patients.

For any more information, please use our contact form.