ResMed AirSense S10, Clinical Manual

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English 19
Sleep Report screen parameters
Parameter Description
Usage hours Number of hours the device has been used during the last session.
Events (AHI) per hour Apneas and hypopneas measured per hour for one day. An apnea is when the
respiratory flow decreases by more than 75% for at least 10 sec. A hypopnea is when
the respiratory flow decreases to 50% for at least 10 sec. The Apnea Index (AI) and
Apnea-Hypopnea Index (AHI) are calculated by dividing the total number of events that
occurred by the total mask-on therapy period in hours.
Note: Under conditions of high leak with EPR enabled, AHI detection may not be
optimal.
Mask Seal
Good—if the 70
th
percentile leak is less than 24 L/min.
Mask needs adjustment.
Humidifier
Humidifier attached and functional.
Humidifier fault; refer to troubleshooting section.
More Info
Period
Set the time interval covered by the Sleep Report .
The options are: 1 Day / 1 Week / 1 Month / 3 Months / 6 Months / 1 Year
Days Used Number of days the device has been used during the selected period or since the last
compliance data was reset.
Days 4hrs+ Number of days the device has been used for more than 4 hours during the selected
period or since the last compliance data was reset.
Avg. Usage Average number of hours per day the device has been used during the selected period.
Used Hrs Number of hours the device has been used during the selected period or since the last
compliance data reset.
Pressure Average pressure during the selected period (95
th
percentile for each day; average of
the 95
th
percentile values for periods >1 day).
Leak Average of the 95
th
percentile values of leak during the selected period for days with
usage only.
AHI Apnea-Hypopnea Index—average AHI during the selected period. AHI and AI are
calculated for times of low leak only.
Total AI Apnea Index—average total AI during the selected period.
Central AI Central Apnea Index—average CAI of the Days Used in the selected period.