Apnoea Settings; Control Settings For Apnoea Ventilation - ResMed Astral Series Clinical Manual

Apnoea Settings

The Astral device allows the clinician to define what should happen when the device detects an apnoea.
An apnoea refers to the absence of breath within a configurable period: T apnoea (Apnoea Interval).
Apnoea can be defined as an absence of patient-triggered breaths (No Spont Breath), or an absence of
any breaths (No Breath), whether they are patient, time, or manually-triggered breaths.
Three types of Apnoea response settings can be selected on the Astral device:
1. Alarm only
2. Alarm + apnoea ventilation ((A)CV breath pattern)
3. Alarm + apnoea ventilation (P(A)CV breath pattern)
4. Off
When Alarm + apnoea ventilation ((A)CV or P(A)CV) is selected, apnoea ventilation is automatically
triggered following the detection of an apnoea event. Apnoea ventilation is displayed on the Information
bar.
The Apnoea response will deactivate when the patient triggers three consecutive breaths.
ResMed recommends that Apnoea ventilation is enabled whenever the Resp. rate is set to Off.

Control settings for Apnoea ventilation

Parameter
Apnoea response
All modes
Valve ventilation modes only
Valve ventilation modes only
All modes (Adult)
Apnoea Detection
T apnoea (min:sec)
WARNING
Setting Apnoea Detection to No breath and T apnoea to a value greater than 60s will make the
Apnoea Alarm and Response ineffective.
Setting
Alarm only
(A)CV + Alarm (for (A)CV breath pattern)
P(A)CV + Alarm (for P(A)CV breath pattern)
Off
No breath, No Spont. breath [No breath]*
*Adult: [Off] when the mouthpiece interface is selected.
Adult: 15s to 60s [20s]*
Paed: 5s to 30s [10s]
*Adult T apnoea can be extended to 15min when the mouthpiece
interface is selected.
Supplementary features
English 97