gadgetmaniah wrote: ↑Fri May 28, 2021 1:20 pm
I've heard that an EPR of 3 is optimal. So, if I normally have my minimum at 6 cm, would I need to increase the minimum pressure if I set EPR to 3?
Each patient is an individual case. There is no optimal EPR for the patient population, and there is no formula for assigning an EPR. The optimal EPR/Min/Max setting is the one that is effective for the user and doesn't interrupt the user's sleep. For example, some like very much an EPR of 3, and others, like me, don't like the constant up and down cycling of the pressure. I don't use EPR. Others won't do without it.
To find optimal settings, the user can experiment with different settings, make subjective judgments about his sleep quality and energy level the next day, and check the daily data in OSCAR. Trial and error.
As far as turning EPR on and increasing the minimum pressure, some have found they have to do this.
Here is a quote from ResMed.
The ResMed AirSense 10 has built-in sensors that detect a patient’s breathing. As an individual exhales, the CPAP machine responds by reducing the air pressure delivered by a specific amount. When an inhale is detected again, the machine raises the pressure back to the prescribed setting. This is known as EPR, or expiratory pressure relief.
The ResMed AirSense 10 has four EPR settings: 0-3. At 0, pressure relief is turned off. At 3, air pressure is reduced by 3 cm H2O. For example, if a patient’s CPAP is set to 10 cm H2O with an EPR of 3, the air pressure during exhale is lowered to 7 cm H2O. Once an inhale is detected, air pressure increases back to 10.
Note if EPR is set at 3 and minimum pressure is set at 6.0, the machine will not go below 4.0. So, the EPR setting is effectively only 2.