AirForceOne wrote:Just curious if everyone on CPAP is supposed to have a AHI number less than 5. My number during the sleep study was 49 per hour. I've been on a machine for about 3 weeks now. For the first week, the AHI number kept increasing and peaked at 15.7. During the second week, the 7-day average started decreasing and bottomed at 7.6. It's now increasing again and is 8.5. Is there a certain level where something needs to be done (e.g., it's too high)? I do have some central apneas (periodic breathing) so without bringing the SD Card to the doctor or DME (was told to wait for 90 days of data), I'm not sure why the AHI is going up and down.
drowsy_jack wrote:My ahi went from 16 during study to 12 under two weeks of cpap, not much improvement.
What I'm wondering is , is this data accesible to the user on most machines, or only by the doctor. My nurse said no. I will be using a respironics latest model...
CrohnieToo wrote:What brand and model CPAP are you using, DrowsyJack? Some models of CPAP are only compliance data capable, others are fully data capable, that is they can provide Leak, AHI, AI and other data relative to your sleep each night. Some models are even capable of providing at least the Leak, AHI and AI via the LED screen as well as even more data via proprietary software. (Compliance data is just the usage data, i.e. how many hours a night it has been used and how many nights it has been used).
I'll be using the Respironics PR SYSTEM ONE REMSTAR AUTO when I get my new machine in a couple of weeks.
Vicki wrote:Science News did not get it right. OSA does not jump from mild to severe. AHI is the Apnea-Hypopnea Index and is the number of events/hour.
Mild AHI = 5 - 14
Moderate AHI = 15 - 30
Severe AHI >30
So, as an example, say you sleep 7 hours and you have 126 events the whole night. Then your AHI = 18 which is in the moderate catagory. My AHI is 114.
But honestly, aside from being knowledgable and educated about this disorder it doesn't matter. People with mild OSA can feel just as bad as people with severe. It also depends on other factors, how much you desaturate, the length of apneas, etc. And the bottom line is that we are all brought back to an AHI < 5 (which is theraputic) with a CPAP.
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