Mindray BeneView T1, Руководство оператора

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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 ].