Cheyne-Stokes Respiration Detection - ResMed AirSense 11 Manual

Cheyne-Stokes respiration detection

Available in all modes on the AirSense 11 AutoSet and the AirSense 11 Elite.
Cheyne-Stokes respiration (CSR) is a form of sleep-disordered breathing characterized by a periodic waxing
and waning of respiration. The waxing periods (hyperpneas, typically 40 seconds in length) can include
large gasping breaths that tend to arouse the patient while the waning periods (hypopneas or apneas,
typically 20 seconds in length) cause blood oxygen desaturations.
The following example shows a typical CSR period.
The following example suggests periodic breathing due to the frequently occurring apneas. However,
when looking closely at the shape of the hyperpneas it can be seen that it is a typical OSA period.
The AirSense 11 device reports the time during therapy in which it detected breathing patterns indicative
of CSR. It analyzes the patient's respiratory flow for apnea/hypopnea events, calculates the time between
these events, and characterizes the shape of breathing between them.
8