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Folks, this is an interesting topic, but I think we need to be careful about statements like:

Just wondering if it is a good investment in getting a bipap machine to prevent any lung issues as a result of longterm CPAP use?

I'm guessing this question was theoretical, but some might get alarmed at this statement. Unless you can validate such a statement you might want to be very careful about your phrasing. I am not aware of any long term detrimental effects of cpap. Anyone else?

Cheers,
BP

Sounds to me like an ST machine might be a little bit of insurance--what if you have a Central Apnea Event and you don't start back breathing?

Course it wouldn't be like a ventilator making you breathe but it would be a step in the right direction.

I have heard that sometimes auto BiPAPs can make Central Apnea worse but I gues that happens most with people with higher pressures.

The Body and lungs are a complex thing--sometimes a person has to have a little bit of a problem to have the DRIVE to breathe--in other words if a machine does everything for you perfectly all the time--if it can't VENTILATE you your body might just quit breathing.

I think it mainly has to do with CO2 level instead of oxygen leve like most people would guess. Maybe some of the repiratory experts out there might know what effect CO2 has in breathing.

Are sleep MDs generous in changing people from CPAP to BiPAP or do you have to really fail at CPAP before they will try BiPAP?