14-7
14.6.6 Enabling PPV Measurement and Setting PPV Source
PPV indicates pulse pressure variation. To enable PPV measurement, set [PPV Measurement] to [On]
You can select PPV source when PPV measurement is enabled.
WARNING
This monitor can calculate PPV from beat-to-beat values of any arterial pulsatile pressure. The
circumstances under which the calculation of a PPV value is clinically meaningful, appropriate and reliable
must be determined by a physician.
The clinical value of the derived PPV information must be determined by a physician. According to recent
scientific literature, the clinical relevance of PPV information is restricted to sedated patients receiving
controlled mechanical ventilation and mainly free from cardiac arrhythmia.
PPV calculation may lead to inaccurate values in the following situations:
at respiration rates below 8 rpm
during ventilation with tidal volumes lower than 8 ml/kg
for patients with acute right ventricular dysfunction (“cor pulmonale”).
The PPV measurement has been validated only for adult patients.
NOTE
The PPV measurement from IBP will automatically be switched off if PiCCO module is working. The monitor
will meaure PPV through PiCCO module.
14.6.7 Setting the Pressure Unit
Select [Unit Setup >>] from the [User Maintenance] menu. In the popup menu, select [Press. Unit] and toggle
between [mmHg] and [kPa]. Select [CVP Unit] and toggle between [mmHg], [cmH2O] and [kPa].
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