Hello Every one,
I've been using the ASV for couple of nights and I had a perfect AHI. The problem is I feel more fatigue and dizziness. I'm have a CO2 retention so I'm not exhaling the co2 and absorbing it.
I'm thinking by reducing EPAP and Increasing pressure support to make larger difference to help to exhale.
I'm using full face mask I'm asking if I use nasal mask would help to more CO2 washout. Any other ideas ?
Having higher pressure support will lead to more co2 washout but reducing epap may increase obstructive apneas and lead to lower O2. So it's not that simple. I suggest you consult your physician. There could be multiple cpap related reasons for feeling dizzy in the morning.
You could go to a nasal pillow mask. It has the least amount of dead space so it will help in increasing co2 washout. Also, you can use the slim tube (15mm diameter instead of 22mm). This too reduces dead space in the breathing circuit.
Started APAP 4-20, Closed range to 7.5-14, then straight 8.0 w/ Aflex 3
RDI always below 1. But sleep much much better at straight pressure.
Started on F10, Tried Quattro Air successfully. Finally settled on P10.