(08-28-2015 10:13 AM)Judy1843 Wrote: My cpap usage is 8.46, Ahi per hour is 2.6,Pressue 10,leaks 24L/min,Ahi2.1Total 1.8Central1.2.
Your usage 8.46 hrs is very good.
Your AHI 2.6 per hour is good. Anything less than 5.0 is usually considered acceptable.
Your Pressure 10: not sure if 10 is your median pressure (at or below 10 at least 50% of the time) or your 95 percentile pressure (at or below 10 at least 95% of the time). The Clinical Guide (setup manual) for your machine is available by email request and I think would explain whether the Pressure statistic displayed on your machine refers to the median pressure measured or the 95% pressure measured.
In my opinion, it is usually best to have the Min Pressure set not lower than 1 or 2 below the measured median pressure, to better avoid obstructive events. So I suggest you consider raising your Min Pressure. Also, a higher Min Pressure often makes it easier to inhale, making breathing more comfortable. The emphasis here is to find a comfortable Min Pressure which is only 1 or 2 or 3 lower than your median pressure.
Your (unintended) Leak of 24 Liter/minute or less, during at least 95% of the time, is not bad. ResMed machines do not count intended Leak, which is leakage through the vent holes built into the mask. ResMed recommends (unintended) Leak be not higher than 24L/m but their machines usually handle unintended Leak up to 30L/m quite well, especially if the Leak is fairly steady rather than all the time varying quickly.
Your AHI 2.1 per hour is very good. Perhaps this is for only the most recent night, and earlier 2.6 statistic was an average over many nights?
I think "Total 1.8" would mean the total of all apneas was 1.8 per hour. This is good.
I think "Central 1.2" would mean 1.2 central apneas per hour. This is small, nothing at all to worry about. The number of obstructive apneas would have been 1.8 - 1.2 = 0.6.
A more expensive type of CPAP machine which can treat both obstructive apneas/hypopneas and central apneas/hypopneas is not considered unless the number of central apneas per hour is at least 5.0.