Titration

rosacer · Post by **rosacer** » Sat Dec 07, 2013 9:39 pm

Hi people,

I had my titration study last Wednesday.

The tech told he was going to give me 4 cmH2O only and he was going to increase the pressure if needed in the night. No humidifier connected.

I was able to sleep all the night, I woke up a couple of times but I felt asleep without problem. The tech woke me up after having slept 8 hours (it was 6 am). He told he haven't needed to increase the pressure. So, it was as if I slept all those 8 hours without CPAP because 4 cmH2O is nothing. My CPAP is presently set at 6.8 cmH2O.

I was dizzy, I felt the head as if it had been blown with air, a small weir kind of headache in the right side. I was feeling not good and very different than when I use my CPAP at home. This dizziness lasted until at least noon.

I can't understand how is it possible that he told I didn't need to have more pressure and I woke up feeling like crap.

What do you think?

BlackSpinner · Post by **BlackSpinner** » Sat Dec 07, 2013 9:45 pm

Well as they say AHI is only one measurement. If you feel better at a higher pressure then use that. After all it is only one night.

Todzo · Post by **Todzo** » Sat Dec 07, 2013 9:54 pm

rosacer wrote:Hi people,

I had my titration study last Wednesday.

The tech told he was going to give me 4 cmH2O only and he was going to increase the pressure if needed in the night. No humidificator connected.

I was able to sleep all the night, I woke up a couple of times but I felt asleep without problem. The tech woke me up after having slept 8 hours (it was 6 am). He told he haven't needed to increase the pressure. So, it was as if I slept all those 8 hours without CPAP because 4 cmH2O is nothing. My CPAP is presently set at 6.8 cmH2O.

I was dizzy, I felt the head as if it had been blown with air, a small weir kind of headache in the right side. I was feeling not good and very different than when I use my CPAP at home. This dizziness lasted until at least noon.

I can't understand how is it possible that he told I didn't need to have more pressure and I woke up feeling like crap.

What do you think?

We do not sleep in a lab so why in the world do we sleep test and titrate in a lab???

It was looking at one single night (in a very differant space). We do not sleep the same any two nights and how we sleep varies more if in an unfamiliar space.

Do not expect things found in the lab to be what exists for you at home.

sleepy1235 · Post by **sleepy1235** » Sat Dec 07, 2013 10:01 pm

Were there oximeter readings, readings of oxygen in your blood?

AHI is an inferred reading of pressure variation. The thing that counts is the oxygen in your blood. What did those readings say?

Also, ask them if 6 will work. I have had studies done and the results do vary. One said 6 the other said 8.

They don't have much of a comprehensive of process variation. All the technician knows is that for one night he didn't have to increase the pressure. He doesn't know how much process margin is needed.

I hacked my machine when it was at 6 and went to 8 and then I was fine and the follow up study said I needed 8.

rosacer · Post by **rosacer** » Sat Dec 07, 2013 10:16 pm

I don't have the result. The hospital's sleep laboratory is going to send the result to my doctor and they will call me to give me an appointment with him, that is the normal way to do things here.

I slept all the night, I had a darn oximeter on the index I still have a mark to prove it
I had the wires for the leg's movement, the eyes, face, the 2 strap for the respiration sensors and I think the heart, the wires for the brain waves, all the kit.

I can't understand I was dizzy after having sleep all that time and apparently without problem.

Is it possible because I had no humidifier? At the beginning I felt my sinuses a bit blocked but then it was ok. I was using my FFM so all was the same other than the 4 cmH2O.

rosacer · Post by **rosacer** » Mon Dec 09, 2013 7:09 am

Thank you for the answers guys.

Yesterday I woke up in the middle of the night. I was unable to fall asleep so I removed the mask and I slept without CPAP for 2 hours, is it not the same thing as to sleep at 4cmH2O

Well, the result was that I woke up feeling exactly as I felt when I woke up after the sleep test = dizzy and a weird head feeling as inflated (LOL). The difference is that this time the bad feeling lasted one hour or less.

Definitely something is still going on. I also would like to hear from people at low pressure as UncleBob, I hope he will come by and read this post.

I will call to try to fix an appointment with my Dr for January.

Rosie

Julie · Post by **Julie** » Mon Dec 09, 2013 8:14 am

Hi - two things occur to me... one is that your blood pressure may be lowered by Cpap (it's supposed to do that to some extent anyhow) and it may already be low to begin with, making you feel dizzy in the a.m. The other reason for dizziness could be that the CO2 vent gets covered by accident overnight and should never by covered of course.

rosacer · Post by **rosacer** » Mon Dec 09, 2013 10:32 am

Hi Julie,

At the sleep test I was using the same mask I use every day , it was no way the vent get blocked it is a FFM with the vent in the front it was nothing around to block it I can't sleep very well with that in my belly the mask hurt my face and I wake up. The weird is that I felt exactly the same when I slept at 4cmH2O in the sleep lab and when I slept without CPAP yesterday for 2 hours.

The pressure going down I don't think so because of the same reason above. I don't have high blood pressure any more since months ago (6) .

Julie · Post by **Julie** » Mon Dec 09, 2013 10:34 am

You misunderstood - I'm saying if your BP is already low to begin with, Cpap might make it even lower.

rosacer · Post by **rosacer** » Mon Dec 09, 2013 1:22 pm

Sorry I understand now, thanks Julie

BlackSpinner · Post by **BlackSpinner** » Mon Dec 09, 2013 1:32 pm

Julie wrote:You misunderstood - I'm saying if your BP is already low to begin with, Cpap might make it even lower.

But only if it was stopping events. Your blood pressure goes out of whack because your heart is dealing with events.

rosacer · Post by **rosacer** » Tue Dec 10, 2013 7:23 am

FYI,

Last night I slept with my CPAP as usual and I woke up normal, no dizziness at all.

I don't know if it could be that you get used to the CPAP but man! this is weird thanks.

I get an appointment with my pneumologist for January but I'm still curious to know what do the people at low pressure feel when they don't use their machines.

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