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

last night's results
#11
(12-19-2015, 08:45 AM)app1nag Wrote:
(12-19-2015, 08:35 AM)app1nag Wrote: so last night I ate and drank at a Christmas party, got home after 1am, and had the puppy jump into bed with me. To me, these were all indications of a crappy night's sleep. Woke up almost 7 hours later with AHI of ZERO ! I am certainly happy, but seriously starting to question the validity of these #s. Perhaps increasing the ramp pressure to 8 for 15 minutes helped. It was previously set to 4 and AUTO.

doesn't a flat line like these indicate an issue?

I'm /guessing/ that the top line is flow and the bottom one pressure. Both flat lines last for 8 seconds or less, too short to score as either obstructive or central apnea. The little bumps in pressure are probably Resmed's attempt to differentiate between OA and CA; the tiny bumps in flow might indicate an incipient CA - which you aborted by starting to breathe. If that's all you found, no problem. If there are lots of those, then probably toning down the drink should take care of it. One night is not the rest of your life.

I hope others more experienced will comment as well.
Post Reply Post Reply
#12
(12-19-2015, 09:55 AM)pholynyk Wrote: I'm /guessing/ that the top line is flow and the bottom one pressure. Both flat lines last for 8 seconds or less, too short to score as either obstructive or central apnea. The little bumps in pressure are probably Resmed's attempt to differentiate between OA and CA; the tiny bumps in flow might indicate an incipient CA - which you aborted by starting to breathe. If that's all you found, no problem. If there are lots of those, then probably toning down the drink should take care of it. One night is not the rest of your life.

I hope others more experienced will comment as well.

Yes, less than 10 seconds is not scored; and the FOT wave starts at 4 seconds. The flat-topping on the inhalation waveform suggests an obstructive event.
Post Reply Post Reply
#13
(12-19-2015, 08:45 AM)app1nag Wrote: doesn't a flat line like these indicate an issue?

Too short for a CA with Resmed. I'm pretty sure Respironics would have scored at least a hypopnea. The surrounding breathing pattern looks like a period of arousal rather than deep sleep.

On your flow rate graph, right click in the left margin near the label and select the Dotted Lines option, then check Zero. This will add a dotted line at the zero flow which is where no inhale or exhale is occurring. Everything above the line is inhale and everything below is exhale. It really helps me to interpret the graph, and it might be useful to you. Notice how that pause in breathing occurs at the end of an inhale rather than exhale? I think you'll find most OA events occur at the end of exhale.
Post Reply Post Reply


#14
thanks very much for all this information !
Post Reply Post Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
  Sleepyhead Results (New User) jrdnduvall 13 369 10-15-2017, 06:53 PM
Last Post: jrdnduvall
  First Night Results on CPAP CZOscar 9 171 10-10-2017, 05:59 PM
Last Post: CZOscar
  Returning To Therapy with Startling Results OldMarineOceanside 95 3,135 10-06-2017, 05:02 PM
Last Post: OldMarineOceanside
  New sleep study results - Central Apnea bb0490 5 331 10-03-2017, 07:51 PM
Last Post: ajack
  [Diagnosis] 60 days in, random results ozcedric 1 131 09-29-2017, 08:29 AM
Last Post: Sleeprider
Sad Very Frustrated w Results BlueJay22 14 442 09-20-2017, 06:36 PM
Last Post: BlueJay22
  Oximeters-Target Results and Do you really get what you pay for? Orionsnet 18 1,114 09-18-2017, 05:53 PM
Last Post: aquanaut20

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.