Free CPAP Advice and Sleep Apnea Treatment Help Board • View topic - definition of hypopnea
FAQ
It is currently Thu Dec 14, 2017 3:11 am

Shop Amazon and Support FreeCPAPAdvice

Please consider a small donation to FreeCPAPAdvice.com above, through Patreon, or using the Amazon Shopping link above when you purchase through Amazon. Thank you so much for your support!

Click the Patreon link and Sponsor FreeCPAPAdvice.com

Author Message
Tired99
Unread post  Post subject: definition of hypopnea  |  Posted: Sat Dec 10, 2016 8:45 am

Joined: Sun Sep 11, 2016 4:49 pm
Posts: 5
PAP Mask: resmed f10
PAP Machine: resmed airsense 10 autoset
Humidifier: resumed, set to auto
Pressure Setting: APAP 8.4 to 17 - EPR = 1

Offline
From Wikipedia:

In the context of diagnosis and treatment of sleep disorders, a hypopnea is not considered to be clinically significant unless there is a 30% (or greater) reduction in flow lasting for 10 seconds or longer and an associated 4% (or greater) desaturation in the person's O2 levels, or if it results in arousal or fragmentation of sleep.

Three Questions:

1) Is this the best definition?

2) Is a drop in O2 from 90% to 86% a 4% desaturation or is it a 3.6% desaturation?

3) How is a 30% drop in flow rate identified?


Top
TheLankyLefty
Unread post  Post subject: Re: definition of hypopnea  |  Posted: Mon Dec 19, 2016 9:58 am
User avatar
Site Admin

Joined: Mon Aug 15, 2011 10:22 am
Posts: 4493
PAP Mask: Practically tried them all.
PAP Machine: Use Phillips Respironics System One APAP with Aflex for mask testing
Humidifier: None
Pressure Setting: When testing, I use APAP with a range of 5-10

Offline
Tired99 wrote:
1) Is this the best definition?
Yes

Tired99 wrote:
2) Is a drop in O2 from 90% to 86% a 4% desaturation or is it a 3.6% desaturation?
For a sleep lab it's 4%. We don't have equipment that sensitive. Really only arterial blood gas is accurate in getting SPo2 values, but a needle plunged into the arm would FOR SURE wake people up. :o

Tired99 wrote:
3) How is a 30% drop in flow rate identified?
Nadir to nadir for length of the event, and a 30% decrease in the airflow sin wave that is measured in microvolts. Sounds complicated maybe...but it's not.

_________________
TheLankyLefty
http://www.youtube.com/TheLankyLefty27
Consider being our Patreon: https://www.patreon.com/FreeCPAPAdvice
Shop Amazon and help out FreeCPAPAdvice by using this link: http://amzn.to/2dY19oA
Information on FreeCPAPAdvice.com should not be considered medical advice. Seek your physicians advice before seeking treatment for medical conditions. Information posted on the FreeCPAPAdvice.com website and forum is opinion and not statements of fact.


Top
Pat50
Unread post  Post subject: Re: definition of hypopnea  |  Posted: Wed Nov 22, 2017 8:36 am

Joined: Wed Nov 22, 2017 8:25 am
Posts: 3

Offline
Great definition


Top
Display posts from previous:  Sort by  
Print view

Who is online
Users browsing this forum: No registered users and 1 guest
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum
Jump to:  


Delete all board cookies | The team | All times are UTC - 8 hours [ DST ]

Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
DAJ Glass 2 template created by Dustin Baccetti