Hello Guest, Welcome to Apnea Board !
As a guest, you are limited to certain areas of the board and there are some features you can't use.
To post a message, you must create a free account using a valid email address.

or Create an Account


New Posts   Today's Posts

[Diagnosis] Help interpreting diagnostic report
#1
Help interpreting diagnostic report
Hi, I am a new forum member and new to sleep apnea in general. Thanks for the great resource, already very helpful.

I've been having some trouble with my doctor not giving me enough information, with some of it contradictory. I would like to ask for help interpreting the diagnostic report attached, which shows the results of my home sleep study. 

My interpretation is that I have sleep apnea, since it shows an AHI of 10.0. Looks like it is about 3x worse on my back, suggesting positional apnea is a big problem for me. My average blood oxygen is probably fine (94%) but I spent 19 minutes at less than 88%; that tells me that whatever issue I have is intermittent (possibly suggesting positional again).

I want to check the interpretation of the "Apnea Index" line in the middle: it seems to show that the 3.6 apneas per hour listed in the first row (Events Index), that 0.4 are obstructive and 3.2 are central. I'm not sure why the doctor diagnosed me with obstructive sleep apnea if my apneas are mostly central.

Any advice, interpretations or informed disagreements welcome. Thanks!


Attached Files Thumbnail(s)
   
Post Reply Post Reply






Donate to Apnea Board  
#2
RE: Help interpreting diagnostic report
Obstructives are 0.4, Central 3.2, and Hypopnea 6.4 (This adds up to 10 AHI.)

It seems common for doctors to label the results as Obstructive. Sleeping on your side would more than likely cut down on apneas, but that's not easy to do. Also, Hypopnea can also be disruptive to sleep along with Flow Limitation, Snores and Reras.
OpalRose
Apnea Board Administrator
http://www.ApneaBoard.com

_______________________
OSCAR Chart Organization
OSCAR - The Guide
Soft Cervical Collar
Optimizing therapy
OSCAR supported machines
Mask Primer



INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE.  ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA.  INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
Post Reply Post Reply
#3
RE: Help interpreting diagnostic report
Usually, you must be over an AHI of 20 before treatment will be offered. Everyone has a higher incidence of apnea events while in the supine position. This is because your throat muscles relax while asleep and gravity helps collapse the airway. Sleeping on your side is the preferred position to reduce a lot of these apneas.
Crimson Nape
Apnea Board Moderator
www.ApneaBoard.com
___________________________________
Useful Links -or- When All Else Fails:
The Guide to Understanding OSCAR
OSCAR Chart Organization
Attaching Images and Files on Apnea Board
Apnea Helpful Tips

INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
Post Reply Post Reply
#4
RE: Help interpreting diagnostic report
Do you have the other pages (note this page says 1 of 3). One of the pages should have charts and it would be interesting to see when your oxygen levels were low and if it corresponds with apnea, hypopnea etc.

Your ahi of 10 is mild, treatment of such cases is only usually done when symptoms largely align with apnea (daytime sleepiness, snoring etc). Your time below 88% is larger than I would have expected based on your results so that is the main thing that caught my eye. As mentioned a
I am curious if the graphs would help explain this.

You are right that apnea was mostly recorded as central. Note that some of these might have been falsely flagged events as this machine is not capable of determining if you were asleep so if you held breath for 10 seconds while awake then it can show up as a central apnea. 3.2 is at the higher end of ahi that can be caused by falsely flagged events but it is possible especially if you slept poorly due to having equipment hooked up so just something to keep in mind. However if your desaturation periods were occurring during these central apnea then they are more likely to be real as falsely flagged events rarely have significant desaturations associated with them.

Although apnea looks mostly central being worse in supine position is supportive of an obstructive diagnosis. Regardless of whether this is obstructive or central in nature basic cpap/apap is the first recommended treatment. You should be able to trial a machine and the results of that test should be helpful.
Post Reply Post Reply






Donate to Apnea Board  
#5
RE: Help interpreting diagnostic report
Thanks everyone for your replies. Interesting that treatment is usually only offered if AHI is greater than 20, though I definitely have had daytime sleepiness and more cognitive issues in recent months. The comments about obstructive vs central make sense. I did do a CPAP titration, which I just realized showed 0 central apneas, so maybe the instrumentation on the home study being less able to differentiate is part of the issue. The titration shows zero events (central, obstructive or hyponeas) at IPAP/EPAP of 8, 9, 10 or 11; I was prescribed CPAP with 9.0 (though I'm having real trouble with that - but it's a different issue, so I'll ask in a separate thread if needed).

As for this report, unfortunately, the only other page I have only contains the interpretation (Mild Obstructive sleep apnea worse in supine position) and a list of recommendations (CPAP, sleep on side, lose weight, etc). There are no graphs /charts. This doctor only gives the written reports upon request, and they tend to be low on details; one of my (many) complaints with this doctor.

Again, thanks everyone!
Post Reply Post Reply
#6
RE: Help interpreting diagnostic report
You are entitled to a complete copy of your sleep report. I would ask for it.
Crimson Nape
Apnea Board Moderator
www.ApneaBoard.com
___________________________________
Useful Links -or- When All Else Fails:
The Guide to Understanding OSCAR
OSCAR Chart Organization
Attaching Images and Files on Apnea Board
Apnea Helpful Tips

INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
Post Reply Post Reply
#7
RE: Help interpreting diagnostic report
An official diagnosis of central apnea requires a AHIc of 5 or greater. The hypopnoea were not split into obstructive and Central so with a CAI of 3 it is not. Classified as central apnea.
Post Reply Post Reply






Donate to Apnea Board  
#8
RE: Help interpreting diagnostic report
Hi Rleaman, Your profile says you're using a Resvent iBreeze. If that machine allows you to use OSCAR then I highly recommend it. It will give you data from many nights rather than just the one night from your at-home study. Of course, it will give you data on how things are while on CPAP whereas the home study was without CPAP but if you're having centrals you'll have them even if on the machine. At least I think that's true, I'm not sure. I'm also fairly new to all this and there's a lot that puzzles me. For example, why did you have a titration study if you have an auto-CPAP machine and why were you put on a fixed pressure. I'm not actually asking those questions, I assume there's a good reason in your case. Regardless, welcome to the forum, I've been learning a lot from it (wit still a long way to go).
Post Reply Post Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
  Machine not showing proper hours in sleep report. Sessions show major disruption cloudberry 12 279 06-23-2022, 08:49 PM
Last Post: cloudberry
  SPO2 report interpretation JohnAT 5 180 06-16-2022, 03:13 PM
Last Post: Jeff8356
  How can I see the AHI value on "Sleep Report" window in ResMed Airsense 10 Autoset ? tommyngo 10 8,182 06-04-2022, 02:03 PM
Last Post: hh9797
  [Diagnosis] Help interpreting OSCAR for bloating contracostacpap 1 119 06-01-2022, 10:58 AM
Last Post: contracostacpap
  Help, need usage report ASAP ji cee 6 354 05-23-2022, 09:46 PM
Last Post: cathyf
  [Diagnosis] Sleep Study Report - just looking for thoughts before consult XedSleep 0 179 05-12-2022, 03:33 PM
Last Post: XedSleep
Question [CPAP] First OSCAR Report rolltide 3 368 05-11-2022, 05:02 PM
Last Post: Dormeo


New Posts   Today's Posts






About Apnea Board

Apnea Board is an educational web site designed to empower Sleep Apnea patients.