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Central events while falling asleep
#1
Central events while falling asleep
Almost feeling like I forget to breathe while trying to fall asleep and the APAP bumps up the pressure. Checked last night and AHI was 10 and they were all centrals. OSCAR data overall for the night looks better with an AHI of 2. Please help!


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#2
RE: Central events while falling asleep
It's really common to have them when falling sleep, it should subside with time. Mine were reduced after a few weeks, though I still have a few but typically when awake or falling sleep. You really dont have to worry unless you were sound asleep and having them. Just when getting used to the machine you can reset the ramp time which should eliminate or reduce them when falling asleep.
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#3
RE: Central events while falling asleep
Sleep onset centrals are pretty common. Even though most people will tell you not to use EPR with centrals, I have found it often helps because when you "forget to breathe" you often are just breathing too shallow. When the CPAP detects that shallow inspiration flow, it usually triggers the CPAP or IPAP pressure, and that is just enough of of nudge to cause a spontaneous breath. We use this more often with bilevel which has a trigger sensitivity setting so we can make that trigger point very low. EPR will calm those pressure spikes and might just get rid of the CA events.
Sleeprider
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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.
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#4
RE: Central events while falling asleep
A few Central events were present, amounts to 1.61 AHI under the Central area. While they were a significant aspect of your sleep, it was still well below the treated AHI level of 5. These aren't in a large enough amount to edit pressure.
INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEBSITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
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#5
RE: Central events while falling asleep
Thank you! I guess I get confused because people suggest turning off EPR to reduce centrals but in this case, I should turn on EPR to reduce centrals? I also turned off ramp time. Would you suggest turning that back on as well?

Should I turn on ramp time? currently I have no ramp so when the machine turns on, it is already blasting a pressure of 9cm. I do notice that it is harder to breathe early on in the night. By morning, I am breathing very easily with a pressure of 9
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#6
RE: Central events while falling asleep
If you can tolerate it, it may be better without ramp. Or a minimalist usage way is use Auto ramp at your starting pressure.
INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEBSITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
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#7
RE: Central events while falling asleep
(03-14-2024, 09:45 PM)michaelyu15 Wrote: Thank you! I guess I get confused because people suggest turning off EPR to reduce centrals but in this case, I should turn on EPR to reduce centrals?

It really depends on the cause of centrals. Turning off EPR is helpful when centrals are the result of "washout", a lowering of CO2 from improved ventilation.  Sleep onset centrals are often just a matter of lag in the neurological handoff between voluntary wake breathing and the autonomic sleep breathing, and EPR sometimes helps as it gives a bit of a push to weak respiratory effort.  Anyway, you'll find much of sleep apnea "science" is nothing more than trial and error, so asking you to try something is an experiment to see if it results in an improvement.  We observe the results and get feedback, then decide whether to keep or reject the change.
Sleeprider
Apnea Board Moderator
www.ApneaBoard.com

____________________________________________
Download OSCAR Software
Soft Cervical Collar
Optimizing Therapy
Organize your OSCAR Charts
Attaching Files
Mask Primer
How To Deal With Equipment Supplier


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.
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#8
RE: Central events while falling asleep
Thank you SleepRider! I tried EPR at 3 for two nights and found an increase in CAs. Now just sticking with a pressure of 9-15, EPR 0 in hopes the sleep onset CAs lessen over time. I do end up waking up at night around 1-2hrs (just bc I am anxious about it now) to check and my AHI around that time is usually 5-8. By morning, AHI decreases down to 2-3.
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