iBreeze CPAP Clinical Guide
19
Once the device identifies a hypopnea, the treatment pressure increases in an adaptive way.
When the breathing becomes normal again, pressure reduces gradually.
Snore
In cases the upper airway has collapsed to certain extent, vibration of the walls of the airway may
appear along with the inspiration, accompanied by unpleasant sound. Once the device identifies
the occurrence of snoring, treatment pressure increases until snoring stops. When the breathing
becomes normal again, pressure reduces gradually.
Flow Limitation
As the upper airway starts to collapse, the inspiratory portion of the airway waveform becomes
flat, which is a presymptom of snoring, hypopnea and apnea. The device recognizes this pattern
and increases the treatment pressure accordingly. When the breathing becomes normal again,
pressure reduces gradually.
RERA
Respiratory effort-related arousal is defined as an arousal resulting from increasing respiratory
efforts. In such cases, there is a subtle reduction then followed by a sudden increase in airflow or
tidal volume. When the device recognizes this pattern, a RERA event is reported. No pressure
adjustments are made in response to RERA.
