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AVEA ventilator systems
Appendix G: Advanced Pulmonary Mechanics Monitored
Parameters
Rapid Shallow Breathing Index (f / V
The ventilator is capable of displaying the calculated value for Rapid Shallow Breathing Index (f / V
which is the spontaneous breath rate per tidal volume, and is based on the following formula:
Range:
Resolution:
Chest wall Compliance (C
Chest wall Compliance (C
(dP
C
Range:
Resolution:
Note:
Accuracy:
Lung Compliance (C
Lung Compliance (C
The delta transpulmonary pressure is the difference between the airway plateau pressure (during an
inspiratory pause) and esophageal pressure (at the time the airway plateau pressure is measured) minus
the difference between the airway and esophageal baseline pressures.
C
Range:
Resolution:
Note:
Accuracy: ±10%
L2786 Rev. M
f / V
= f
/ V
, where f = spontaneous breath rate (BPM) and
2
t
e
0 to 500 b
/min/L
2
1 b
/min/L
2
)
CW
CW
).
ES
V
te
=
CW
d
P
ES
0 to 300 mL/cmH
1 mL/cmH
O
2
Requires an esophageal balloon catheter.
± 10%
)
LUNG
), is the ratio of the tidal volume (exhaled) to the delta transpulmonary pressure.
LUNG
V
te
=
, where dP
LUNG
dP
PLAT
TP
0 to 300 mL/cmH
1 mL/cmH
O
2
Requires an Inspiratory Hold maneuver and an esophageal balloon catheter.
)
t
Ve = spontaneous minute ventilation in LPM
), is the ratio of the tidal volume (exhaled) to the Delta Esophageal Pressure
O
2
= (P
− P
) − (PEEP
PLAT TP
PLAT AW
ES
O
2
− PEEP
)
AW
ES
223
),
t
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