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A few persisting centrals
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Lukie Offline

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Machine: Resmed S9 Auto
Mask Type: Full face mask
Mask Make & Model: Airfit F 10
Humidifier: H I heated tubing resmed
CPAP Pressure: 6-16
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Other Comments: Masks: Simplus, Air, Quattro fx, Nano, Eson, Swift fx and Activ

Sex: Female
Location: Vermont

Post: #1
A few persisting centrals
I have been using CPAP for a week now. Average usage is 9 hour a night.
It appears that obstructives are almost completely gone as are most of the hyponeas. But there are a few lingering hyponeas and centrals. My AHI last night was 1.3 with 0 obstructives 1 central .3 Hyponea
My sleep study showed an AHI of 6.7 with 1 obstructive,2 centrals and the rest hyponeas.

I'm sleeping much better with control of the hyponeas but why the persisting centrals. My machine is supposed to treat both centrals and obstructives.
I need to change from Quattro air to a less leaky mask, maybe mirage Quattro
I am fine with a full face. Any comments?
11-26-2013 08:51 AM
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DeepBreathing Offline
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Joined: Sep 2013

Machine: Resmed S9 VPAP Adapt
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: Resmed H5i
CPAP Pressure: EPAP: 9 - 15 PS: 3 - 10
CPAP Software: ResScan SleepyHead

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Sex: Male
Location: Perth, Western Australia

Post: #2
RE: A few persisting centrals
If you're getting those numbers after only a week I'd say you're doing extremely well. I know that zero apneas is the ideal but I don't think it's achievable for everybody. You probably shouldn't worry too much.

Have a look at your Sleepyhead charts and see what time the centrals are occurring - I think it's normal to have a few when you're transitioning into and out of sleep.

DeepBreathing
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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.
11-26-2013 09:03 AM
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drgrimes Offline

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Posts: 235
Joined: Sep 2013

Machine: S9 Resmed Autoset
Mask Type: Nasal pillows
Mask Make & Model: Philips Dreamwear
Humidifier: resmed
CPAP Pressure: 5-15
CPAP Software: ResScan

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Sex: Male
Location: Texas

Post: #3
RE: A few persisting centrals
I also have a few centrals still lingering along with the occasional obstructive. Not sure how long you've been on cpap. I've been on for about 4+ months. I notice my AHI number slowing going down. It still bounces up and down with the occasional bad night, but one night I actually had zero incidents. I think the more used to the machine your body gets, and the better fit you have with a mask, the numbers hopefully get better.

I think I read somewhere that higher pressures can cause CAs. Some day in the future when things have been consistent for a while, I may lower my pressures gradually to see if the CA lessen or disappear. My pressure range is set 5-15. When I look at Rescan, it indicates my 95% pressure is 8-9.
My AHI in the beginning was 3-5, now it is less than one almost every night.
(This post was last modified: 11-26-2013 09:06 AM by drgrimes.)
11-26-2013 09:04 AM
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PaulaO2 Offline
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Machine: S9 Autoset
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Post: #4
RE: A few persisting centrals
A few centrals during the night are nothing to worry about. As long as the overall AHI is below 5, forget about them.

Some work like mad to get their AHI to zero. Some work like mad to get it to 3. But, really, we should all work like mad to get a good night's sleep so that you feel great the next day. Because feeling great is the key here, not the AHI.

PaulaO2
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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.
11-26-2013 01:55 PM
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zonk Offline

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Machine: A10 AutoSet
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Other Comments: CPAP since Nov 2010

Sex: Male
Location: Australia

Post: #5
RE: A few persisting centrals
(11-26-2013 01:55 PM)PaulaO2 Wrote:  Because feeling great is the key here, not the AHI.
+1
I like what SuperSleeper wrote in "How to find the optimum pressure on your constant-pressure CPAP machine"

Keep a written log of how you feel each morning, afternoon and evening. Note any pain, daytime sleepiness, changes in energy level or mental alertness. Make sure you listen to your body.
11-26-2013 02:04 PM
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Tez62 Offline

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Joined: Feb 2013

Machine: Resmed S9 Autoset
Mask Type: Full face mask
Mask Make & Model: Resmed Mirage Quattro
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CPAP Pressure: 5-15
CPAP Software: SleepyHead

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Sex: Male
Location: Melbourne, Australia

Post: #6
RE: A few persisting centrals
Lukie, you are doing extremely well, just continuing doing what you have been doing, the trick with CPAP is to keep everything consistent. Hardly anyone will have '0's every night. You also have to allow for errors, our CPAPs are not sleep studies, sometimes movement in bed can record an apnea. Just on the masks, I used the mirage Quattro for 2.5 years and find there are much less leaks with the Quattro air, but everyone has a different shaped face so if you can try different masks. Do you know what the 95% leakage rate is showing on Sleepyhead?
11-26-2013 03:20 PM
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archangle Offline
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Post: #7
RE: A few persisting centrals
Be sure to look at the airflow waveforms. Often, when you look at the real data, not much really happened when it says "central" or Hypopnea.

Also, you will sometimes find it's a big whopping, long apnea that you DO need to worry about.

Get the free SleepyHead software here.
Useful links.
Click here for information on the main alternative to CPAP.
If it's midnight and a DME tells you it's dark outside, go and check it yourself.
12-03-2013 01:39 AM
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