07-15-2016, 07:55 PM
(This post was last modified: 07-15-2016, 08:01 PM by Lanco.)
After 16 years with a constant pressure cpap I just spent 3 nights using my new auto cpap. Not sure about all the stat's yet. Also, not sure if more stats are needed than what I am giving here. Here they are:
Average AHI: 1.78
Average Pressure: 9
Average 90th Percentile Pressure: 9.2
Average Leak: 42.9 lpm
Average Time with Large Leak: 15.6 minutes
I am using an Apex XT Auto cpap using Apex Easy Compliance software. My Apex Wizard 210 mask has a CO2 removal of about 30 Liters by itself at 12 cmH20. If that is factored into the 42.9 which I assume it is then there is only about 12.9 that must be mask leak or open mouth. I'm just guessing at this. If that is so then I should be in good shape. Anyone know for sure? Can't reach my supplier until Monday and a curious to know before then, at least some sort of trend.
Welcome to Apnea Board Forum. While your machine is not as well known as some, the clinician's manual for it is available by email. Click on "CPAP Setup Manuals" at the top of the page, then scroll down to near the bottom of Section 3 to find your machine, and below that the instructions for making an email request.
The setup manual not only gives setup instructions, but also often explains how various features work. For example, the ResMed machines report the excess leakage (assuming they know the mask's design leakage), whereas the Resperionics machines report the total leakage, assuming you know the mask's design leakage (which is usually reported in the User Manual for the mask). With luck, you can find out which leakage figure your machine reports - it looks like total leakage, to me.
18 minutes of 'large leakage' will not materially affect your treatment, but you can probably improve on it by fiddling with your straps - probably loosening them in eighth inch increments every other day or so.
I'm not familiar with the software you're using, but if it shows a graph of the leak rate you can look at that and tell for sure. You have an intentional leak rate of 30, so if the graph falls significantly below 30, you know you're looking at the unintentional leak rate.
Regardless, the important thing to look for is significant chunks of time where the leak rate is higher than it is at other times. These are time when you're leaking either at the mask seal or through your mouth. They will ruin a night's sleep.
Apnea Board Moderator
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.