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[Treatment] Seeing significantly different AHI numbers night to night
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galenaforest Offline

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Posts: 3
Joined: Feb 2016

Machine: AirFit 10
Mask Type: Nasal mask
Mask Make & Model: ResMed AirFit N10
Humidifier: ResMed AirFit 10
CPAP Pressure: 6-8mm H2O
CPAP Software: ResScan SleepyHead

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Sex: Male
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Post: #1
Seeing significantly different AHI numbers night to night
Is it unusual to see significantly different AHI numbers each night? Last night I had a 6.7, the night before was .6 and the night before that was 2. All the variables are the same; ramp time, humidity and pressure settings.
02-23-2016 11:22 PM
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Crimson Nape Offline

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Posts: 1,332
Joined: Oct 2014

Machine: ResMed S9 Autoset
Mask Type: Other
Mask Make & Model: P-10 / F&P Simplus / DreamWear
Humidifier: H5i w/Climateline
CPAP Pressure: 8 - EPR 3
CPAP Software: SleepyHead

Other Comments: CMS-50F & 50IW

Sex: Male
Location: Georgia

Post: #2
RE: Seeing significantly different AHI numbers night to night
Hi galenaforest,
Welcome

Two things that come to mind would be:
1 - Are you taking any medication on different nishts?
2 - I see you're using ResScan. Look at you leak values. Large leaks can skew your results.
3 - You might be mouth breathing as well.

Good Luck!
-Red

Statistics prove that people who have more birthdays live longer.
(This post was last modified: 02-23-2016 11:40 PM by Crimson Nape.)
02-23-2016 11:38 PM
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OpalRose Offline

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Posts: 3,181
Joined: Nov 2014

Machine: PR System One REMstar Auto 560 with A Flex
Mask Type: Nasal pillows
Mask Make & Model: AirFit P10 For Her
Humidifier: REMStar heated humidifier with heated hose
CPAP Pressure: Auto Cpap 10-13 AFLEX 1
CPAP Software: SleepyHead EncoreBasic

Other Comments: Started CPAP Therapy October 23, 2014

Sex: Female
Location: Northeast Ohio, USA

Post: #3
RE: Seeing significantly different AHI numbers night to night
Hi galenaforest,
Do you notice if you are sleeping on your back when your AHI is higher?
You can place pillows behind you back to help keep you are on side.

AHI numbers do vary from night to night. Do you take any medicines before bed?
Also, eating too late at night adds to AHI numbers.

Watch your leak rates, as that can affect your readings also.

Consider downloading Sleepyhead software along with using ResScan.
http://www.sleepfiles.com/SH2/

OpalRose
02-24-2016 08:05 AM
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trish6hundred Offline

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Posts: 6,452
Joined: May 2012

Machine: Resmed S9 AutoSet for Her
Mask Type: Full face mask
Mask Make & Model: Fisher & Paykel Simplus
Humidifier: H5i Heated Humidifier
CPAP Pressure: 10 - 7-20 Cm H2O
CPAP Software: Not using software

Other Comments: I started CPAP in 2008. Totally blind since birth.

Sex: Female
Location: Missouri, USA

Post: #4
RE: Seeing significantly different AHI numbers night to night
Hi galenaforest,
WELCOME! to the forum.!
Much success to you with your CPAP therapy.

trish6hundred
02-24-2016 07:43 PM
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Dagmar1 Offline

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Posts: 44
Joined: Jul 2015

Machine: ResMed AirSense10
Mask Type: Nasal pillows
Mask Make & Model: Res Med
Humidifier: HumidAir
CPAP Pressure: 4-6
CPAP Software: ResScan

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Sex: Female
Location:

Post: #5
RE: Seeing significantly different AHI numbers night to night
(02-23-2016 11:22 PM)galenaforest Wrote:  Is it unusual to see significantly different AHI numbers each night? Last night I had a 6.7, the night before was .6 and the night before that was 2. All the variables are the same; ramp time, humidity and pressure settings.

Hi!

I've been going through something similar and have found a couple correlations for me.

Higher fatty food at dinner, pizza, popcorn, sweets, sugar, and eating late.
Staying up late (1AM+) working or studying.
Older nasal pillows.
Older headgear frame.

On the replacement supplies, I went through two (2) defective P10 Mask Frames, with the third one working. Previous two just blew, and did not diffuse. My AHI jumped way up with the defective mask frames. And, the new head straps seemed to have been made larger. A full 2 cm from my old one. The DME replaced that for me too with a womens size which is still longer than my original one, but shorter than the first one they sent.

The other thing I found is if I wash the frame and its vents each day and lightly scrub the vents with a soft tooth brush (an old one), as well as wash and dry the head strap each day it can help. I wash the humidifier every day.

Good luck on finding your own triggers!
02-25-2016 02:27 AM
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