Therapy Modes - ResMed S9 Serie Manual Clínico

Therapy modes

The following table describes the therapy modes available on the S9 VPAP Tx.
Therapy mode
CPAP (Continuous Positive
Airway Pressure)
AutoSet
AutoSet for Her
VAuto
Bilevel
S (Spontaneous)
S/T (Spontaneous/ Timed)
T (Timed)
PAC (Pressure Assist Control)
ASV (Adaptive Servo-
ventilation)
ASVAuto (Automatic Adaptive
Servo-ventilation)
iVAPS (intelligent Volume-
Assured Pressure Support)
Description
Delivers a fixed pressure with optional Expiratory Pressure
Relief (EPR). EPR can improve patient comfort.
Delivers CPAP therapy with optional Expiratory Pressure Relief
(EPR). Automatically adjusts the CPAP pressure in response to
snore, flow limited breaths and apneas.
AutoSet for Her mode is based on key aspects of ResMed's
AutoSet algorithm and delivers therapeutic responses tailored
to the characteristics of female OSA patients.
Automatically adjusts pressure in response to flow limitation,
snore and apneas. Pressure Support (PS) is fixed throughout
the night and can be set by the clinician. Min EPAP and Max
IPAP restrict the delivered pressure range.
Provides for control over a number of related bilevel therapy
modes—S, S/T and T. In all cases you may set two treatment
pressures— one for inspiration (IPAP) and one for expiration
(EPAP). The difference between IPAP and EPAP levels is the
pressure support.
Senses when the patient is inhaling and exhaling and supplies
the appropriate pressures accordingly. The difference between
IPAP and EPAP levels helps determine the tidal volume.
Augments any breath initiated by the patient, but will also
supply additional breaths should the patient breath rate fall
below the clinician's set backup respiratory rate.
The fixed respiratory rate and the fixed inspiration/expiration
time set by the clinician is supplied regardless of patient effort.
The inspiration time is preset in the PAC mode. There is no
spontaneous/flow cycling. The inspiration can be triggered by
the patient when respiratory rate is above a preset value, or
time triggered breath will be delivered at the backup breath
rate.
Treats central sleep apnea and/or mixed apneas and periodic
breathing. In ASV mode, the expiratory positive airway pressure
(EPAP) is adjusted by the clinician to maintain upper airway
patency, while Min PS and Max PS restricts the range of
automatically adjusted pressure support.
Treats central sleep apnea and/or mixed apneas and periodic
breathing. In ASVAuto mode, the expiratory airway pressure
(EPAP) is automatically adjusted to maintain upper airway
patency between the limits set by Min EPAP and Max EPAP ,
while Min PS and Max PS restrict the range of automatically
adjusted pressure support.
Maintains a preset target alveolar minute ventilation by
monitoring delivered ventilation, adjusting the pressure support
and providing an intelligent backup breath automatically.
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