3 months, AHI questions...

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
leaveye
Posts: 61
Joined: Wed Mar 15, 2006 10:06 pm

3 months, AHI questions...

Post by leaveye » Tue Jun 13, 2006 11:33 pm

Hello all, It's been a couple of months since I've posted on here. I've been using my cpap pretty successfully since mid March and have been downloading my data to Encore Pro. According to the data, I've got a total AHI of 6.3. This is certainly better than my performance in the sleep lab, but is this what I should expect at this point in my treatment? Or could I still do better? Would any of you veterans out there be content, or would you still tinker with things?


User avatar
Snoredog
Posts: 6399
Joined: Sun Mar 19, 2006 5:09 pm

Post by Snoredog » Wed Jun 14, 2006 12:00 am

your score is not all that bad, 5 is normal, but who is normal.

If you look at your auto-daily reports or the report where you got the AHI=6.3. It should break down that AHI score into individual apnea and hypoapnea events (look at the bottom table chart under Apnea and Hypoapneas, each should be listed separately and it shown above in the graphs.

the score may be high due to numerous untreated hypoapneas. For example, you may see an AI score =1.3 apneas and HI=5.0. Most people have more hypoapneas than apneas.

AHI is simply the SUM of both AI and HI's.

If you determine that 6.3 is made up of mainly hypoapneas, you can possibly lower your score by increasing any low pressure. Increase the low pressure by 1cm and you may see AHI scores of less than 1.0.

Keep in mind your AHI score can fluctuate night to night, if you do nothing it could be less than 1 tomorrow. But if it consistently goes higher, I'd adjust the low/bottom pressure by 1cm.


User avatar
Rastaman
Posts: 501
Joined: Thu May 25, 2006 8:59 pm
Location: Austin, Texas

Post by Rastaman » Wed Jun 14, 2006 12:51 am

I was not aware of this info. So, raising the minimum pressure 1 cm at a time can reduce HI's and therefore reduce AHI on some level since AHI is AI + HI. Hmmmmm. My range is 8 to 17. And it's going up to 17 at times during the night. So, I probably could go to 9 first and then 10 possibly. Is this correct?


_________________
Machine: AirCurve™ 10 VAuto BiLevel Machine with HumidAir™ Heated Humidifier
Mask: Eson™ 2 Nasal CPAP Mask with Headgear
Additional Comments: EPAP: 8 IPAP: 15 PS: 3.0

User avatar
Snoredog
Posts: 6399
Joined: Sun Mar 19, 2006 5:09 pm

Post by Snoredog » Wed Jun 14, 2006 1:43 am

[quote="Rastaman"]I was not aware of this info. So, raising the minimum pressure 1 cm at a time can reduce HI's and therefore reduce AHI on some level since AHI is AI + HI. Hmmmmm. My range is 8 to 17. And it's going up to 17 at times during the night. So, I probably could go to 9 first and then 10 possibly. Is this correct?