ResScan Stats help

[Golden-Alpine]

Hi,

I am trying to read my stats using ResScan 3.1 stats.

Last night I had the following stats: Apnea index: 3.3, Obstructive 0.1 Central 3.2 Hypopnea index: 0.0 AHI 3.3

What are the different events?

Looking on the Detailed Graphs tab and reading the Events I had quite a few Central Events. There are numbers in the pink boxes are they the seconds the events lasted?

[sleepmba]

I'm not sure about the pink boxes, but your stat's look good to me. I'd call that a successful titration in my lab.

However, if you still feel tired and unrefreshed after a couple of weeks or perhaps sooner, you may need to make a change somewhere like: humidification level, mask, or even pressure. Alot of IF's AND's or BUT's here.

[oscar98]

Yep, the numbers in the pink boxes are the seconds that the event lasted.

How are you feeling? Technically you are under the threshold of an AHI of 5 and that is really good but for me anything above 1 and I feel terrible. Everyone is different.

[Golden-Alpine]

I have been feeling a lot less tired then before CPAP thats for sure.

I just wanted to understand what the differences are between the different events.

[bdp522]

obstructive is where the airway closes because something, like the tongue, gets in the way and blocks the air.
central is when the brain doesn't send the signal to breathe
hypopnea is a wannabe apnea, a partial blockage or decrease in air flow
apnea index is the average per hour of all apnea events, obstructive and central
AHI is the average per hour of all events, obstructive and central and hypopnea

Brenda

[Nord]

Just to add to the info...

You have lots of data to study and understand...

Obstructive Apnea Index = great
Hypopnea Index = great
Central Apnea Index = most of what you see so it is something to watch.

You need to get 2 to 3 weeks of data to get a pattern and see if that is what the trend is...
Centrals can be triggered by any number of things including leaks which you don't mention...
Did you see your Sleep Study report on "Titration" ??

It's a great start.
Nord

[Golden-Alpine]

The report from my titration said: The patient had an in lab autoset titration. A 95th percentile CPAP pressure of 9.6 cm H2O with a maximum pressure of 10.6 cm H20 resulted in good control of OSA. There were a few central events at the start and towards the end of the study but oxygen saturation remained well maintained.

Looking at my reports since 23rd April my AHI has been pretty good, the majority under 5.0. Probably the average is 3.0.

My main issue does seem to be with the Central Apnea's. Is there anything that can be done to reduce them knowing its a brain signal issue.

[sleepmba]

Central apneas are normal to a certain extent. From my experience performing sleep studies and titrations, I'd say the normal range would be 5 to 10 per night (not hour). Central apneas normally occur in transitions from wake to sleep or vice versa on occasion.

Logically, during your sleep study, you were falling asleep at the beginning showing a concentration of centrals. If you were dosing and waking up or even restless, this will make for a higher number. In the end of your study, you may have been waking up or uncomfortable or sick of the wires making you stir and drift back off to sleep causing transitional centrals.

However, there are certain health conditions and/or medications that may cause centrals too. You doctor will probably be the best judge as to what category you fall into.