Help with FIL's data

My FIL is visiting with his RemStar Pro M-Series and Mirage Swift II.

(1) He has one of the model #s that was recalled: 1051158. My understanding from the posts I read was this is an issue only if the humidifier light starts blinking. Is this correct?

(2) His pressure is 13. His 7-day AHI average is 2.2 and his 30-day AHI is 1.9. My read of the manual is that his 7-day leak rate of 53.2 and 30-day leak of 56.4 is too high. (If I'm reading it correctly, the manual says at a pressure of 12, it should be 37 and at 16 it should be 43: http://www.resmed.com/us/assets/documen ... er_eng.pdf)

What is the meaning of his pretty good AHI in the context of this leak rate?

Thanks!

if you can get the DT 3500 you should be able to download the data off the card - there is a California vendor

http://www.securetech-corp.com/mako_dt.html

Yeah, but for now all I have access to is the 7-day and 30-day averages. I know if he's AHI was through the roof with leaks, we wouldn't panic, but with it being pretty good in the context of leaks...what does that mean? Is it valid?

jules wrote:if you can get the DT 3500 you should be able to download the data off the card - there is a California vendor

http://www.securetech-corp.com/mako_dt.html

high leaks can lead to low AHI where you really can't trust the AHI number if the leaks are high without knowing more about the leak graphs

first is get the leaks under control and once they are, then look at the AHI but not until then

jules wrote:high leaks can lead to low AHI where you really can't trust the AHI number if the leaks are high without knowing more about the leak graphs

first is get the leaks under control and once they are, then look at the AHI but not until then

And I'm looking at the numbers correctly to interpret his leaks?

that is the info on that chart yes - there used to be a +/- 6 l/min with Resmed masks indicated on some of the charts

if you ever want more mask leak info - find my post with riverdave's information -he did the work in excel and I put it on the forum

viewtopic.php?f=1&t=44628&p=408880&hili ... ve#p408880


so even if we were to allow linear interpolation of the resmed chart we get 38.5 then add 6 for errors in different lots of pillows we get 44.5 your father is still over 20 % above that ---- gets suspicious then imo - this is why we need the graphs

What would the graphs tell us?

jules wrote:that is the info on that chart yes - there used to be a +/- 6 l/min with Resmed masks indicated on some of the charts

if you ever want more mask leak info - find my post with riverdave's information -he did the work in excel and I put it on the forum

viewtopic.php?f=1&t=44628&p=408880&hili ... ve#p408880


so even if we were to allow linear interpolation of the resmed chart we get 38.5 then add 6 for errors in different lots of pillows we get 44.5 your father is still over 20 % above that ---- gets suspicious then imo - this is why we need the graphs

They woul tell us when the leaks happened, and what the leak level was at for the other % of the time. Without the graphs you can't tell if your FIL was spending most of the night on the verge of a major leak, or if he was spending most of it in low, tolerable leaks and leaking badly only at very specific points.

Thanks everyone!

I cleared the LCD on his Remstar Pro M Series last night and set him up with the Medium Quattro. Today the LCD says the leak rate was 57. 0. According to the spreadsheet that Jules posted, it should be 42. The manual says +/-6. His AHI was 3.4. What do you think?

without the leak graph and seeing when the apneas occur, I wouldn't want to even guess what is going on

you know "a picture is worth 1000 words"