Pressure related CA

[dazza]

Morning ,, can anyone give me an opinion if the CA are related to pressure.

Yesterdays readings were good but i still feel tired...





Todays reading are a lot worse and was wondering if the CA are pressure related. Ive been on CPAP for a month and havent really seen much in the way of seeing much improvement in my energy levels ect.(i may have been sleeping on my back)



My DME doesnt seem to interested in the graphs,,she looks at the AHI and sais things are going good but i dont feel much improvement.
Not really sure where to go from here as my trial ends in 2 weeks.

[Wulfman...]

Hard to tell for sure.

How many nights have you been on therapy and how many of the nights look like the bottom report and how many look like the top one?

Sounds like you're doing a "trial" to see what pressure you may need.

It's still early in your therapy, but it's possible that the changing pressures are disturbing your sleep (bumping you out of your needed sleep stages) and leaving you feeling unrested.


Den

.

[Pugsy]

Your "bad" night looks more like just crappy sleep night and the centrals (CAs) could just be post arousal centrals.
The AHI is about half central and half hyponea.
The hyponeas should reduce with just a little more minimum pressure and hopefully any arousals would also reduce and if those CAs are related more to arousals than something else they should also reduce.

If by chance those CAs are directly related to the pressure they still aren't horribly numerous (less than 2.0 on the above bad night) and often with a bit of time the people who have pressure triggered centrals will find that as the body adjusts to cpap therapy that the centrals sort of fade away on their own.

[dazza]

Hard to tell for sure.

How many nights have you been on therapy and how many of the nights look like the bottom report and how many look like the top one?

Sounds like you're doing a "trial" to see what pressure you may need.

It's still early in your therapy, but it's possible that the changing pressures are disturbing your sleep (bumping you out of your needed sleep stages) and leaving you feeling unrested.


Den

.

Hi Den ,i have been on therapy for 4 weeks now. Out of the 30 days i had 3 nights with a an AHI over 5 It seems my worst events appear when im trying to sleep during the day as im a shift worker.

[dazza]

Your "bad" night looks more like just crappy sleep night and the centrals (CAs) could just be post arousal centrals.
The AHI is about half central and half hyponea.
The hyponeas should reduce with just a little more minimum pressure and hopefully any arousals would also reduce and if those CAs are related more to arousals than something else they should also reduce.

If by chance those CAs are directly related to the pressure they still aren't horribly numerous (less than 2.0 on the above bad night) and often with a bit of time the people who have pressure triggered centrals will find that as the body adjusts to cpap therapy that the centrals sort of fade away on their own.

So maybe i just need to see what happens over time and increase the min from 6.5 to 7 ?

[Wulfman...]

Hard to tell for sure.

How many nights have you been on therapy and how many of the nights look like the bottom report and how many look like the top one?

Sounds like you're doing a "trial" to see what pressure you may need.

It's still early in your therapy, but it's possible that the changing pressures are disturbing your sleep (bumping you out of your needed sleep stages) and leaving you feeling unrested.


Den

.

Hi Den ,i have been on therapy for 4 weeks now. Out of the 30 days i had 3 nights with a an AHI over 5 It seems my worst events appear when im trying to sleep during the day as im a shift worker.

I can relate. I worked shifts years ago, too. (although long before CPAP therapy)

You might try narrowing your pressure range as you mentioned in your next post. Maybe a little higher minimum.....and see how that works.


Den

.

[Pugsy]

Naps are notorious for causing awake/semi awake breathing irregularities that most often get flagged as centrals. We spend a good bit of nap time sort of half asleep and our awake/semi awake breathing is much more irregular than out asleep breathing.
The machine doesn't know if we are awake or asleep...it just records what it senses in terms of breathing and sometimes it is easily fooled.

I doubt that your CAs are pressure related but of course there is always that possibility out there. Even if they were related to pressure they aren't horribly numerous and could very well fade on their own. If it were me I would just give it time and probably increase that minimum a little to clean up the obstructive stuff and see if it helps sleep quality and as a by product cleans up some of those CAs.
Remember some CA (central) events are normal and unless they are numerous or cause problems we don't do anything about them and that includes worrying.

I once had 17 centrals flagged during 17 minutes....ugly cluster that I was pretty sure I was asleep during but I couldn't swear to it.
I don't know what caused them....but that has only happened a couple of time where it was so ugly with centrals so I don't dwell on them. Sometimes we aren't given any way to develop a clear cut answer to our questions.

[BobHale]

You may need to wait them out. When I started CPAP I had a lot of central and hypopnea events. I was really annoyed at my doctor for not thinking they were important. After a few months they faded and now 5 years into CPAP I have only 1 or 2 a week.

I think my events were my body getting used to the pressure.

[4n5j28]

Thanks for all your imput ,,,much appreciated.