Therapy Modes 39
APAP
(only point 2 AutoCPAP)
In APAP mode (Automatic Positive Airway Pressure), the point 2 automatically con
-
trols the therapy pressure in relation to the respiratory events occurring. The device is
equipped with a special sensor system that can reliably distinguish between obstruc-
tive apnea (airways are closed) and central sleep apnea (respiratory arrest with open
airways). Obstructive apnea can be corrected with an automatic increase in pressure.
Central sleep apnea automatically results in a drop in pressure.
Hypopnea (flow reduction, snoring) results in a rise in pressure with a lower speed.
Normal respiration results in a slow drop in pressure.
The maximum values to which the pressure level may rise or fall are specified by the
selection of settings. The device commences therapy once switched on with the start-
ing pressure, which is likewise adjustable.
20
I
Time
P-Max
P-Min
4
E EI
I= Inspiration E= Expiration
[hPa]
APAP with P-Min and P-Max limits
Please note: The speed of pressure increase can be set to one of five levels via the PC
software TRENDset.
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