(11-05-2015, 12:25 AM)zonk Wrote: The majority of AHI events are centrals, you don't treat centrals with pressure increase
Some medication and heart conditions may cause central apnea in some people
Does the machine report any % time in CSR
That is conventional wisdom.
However i began having more centrals than oa.
Tapped the pressure up a bit and they were gone. And stayed gone.
One of my friends also was having almost all ca ,bumped up a bit and they dissappeared.
Both of us have had infarctions years ago.
Neither of us showed ca in sleep study.
Looking at his and my waveforms the machine was scoring ca when thetre was actvity in the apnea . Should have flagged oa.
Two different machines. Wifes mis flags some ca as well.
I personally dont think the machines are all that when it comes to scoring ca, and tend to flag oa that have some very reduced air flow as ca because the pulse sent out doesnt register a blocked airway..
That is why i tried the pressure bump first. Then him. Worked for us both.
The fact the OPs centrals decreased when mun was upped to 7 indicates that is whats happening. And why i suggested nudging it up a tad more slowly.
Can always back it down on the min if the ca get worse and dont settle and go away.
I think her machine is false flagging centrals, which Resmed and PR machines will do under the right circumstances.