Changes

This pattern can be exacerbated by pressure support or EPR which tends to increase ventilation to where the apneic threshold is reached. Reducing EPR or pressure support may help to make this feedback loop less likely to occur or eliminate it altogether. This is just a high sensitivity to increases or decreases of CO2 which directly impacts your respiratory drive (apneic threshold). I think if EPR is reduced you can also lower the pressure by the same amount (12.4 with EPR 2). These events may appear disturbing to see until you understand them and realize they are not particularly harmful to your health or sleep. This can be ignored unless it is a common occurrence or happens fairly often or for longer periods of time.

'''Nagging Low Level CA Events'''

(Sleeprider) I was experiencing random CA events in the 1 to 3 CA per hour range at 3 cm pressure support on both the PRS1 760 BiPAP Auto and the Resmed Aircurve 10 Vauto. Anecdotal evidence from various forum posts suggested these events might be reduced by increasing trigger sensitivity on the Vauto from Medium to High or Very High. The OSCAR overview chart shows the trend for reduced CA events after this change was implemented in late June 2019. While this may not work for all individuals, it appears that increasing trigger sensitivity on the Vauto may improve the incidence of idiopathic CA events from the use of pressure support.

=== RERA ===