CVP scale unit is consistent with CVP parameter unit.
14.5.11 Set Filter Mode
4) Select [Main Menu] hot key → [System] → [Maintenance], enter the maintenance password and click the
Enter key.
5) Select [Module] tab → [Other] tab.
6) Set [IBP Filter]:
Smooth: smooth waveforms can be obtained.
Normal: relatively smooth waveforms can be obtained.
14.5.12 Enable PPV Measure
PPV is pulse pressure variability. When measuring arterial pressure (excluding PA) you can enable PPV. Measure in
the following way:
1) Select the IBP parameter area or waveform area to enter the corresponding pressure menu.
2) Select [PPV Setup] tab.
3) Enable [PPV Measure].
The monitor calculates PPV from beat-to-beat values of any arterial pulsatile pressure. The conditions
of PPV measurement, the clinical significance, applicability and reliability of PPV value calculation must
be determined by the doctor.
Only the doctor can determine the clinical value of PPV information. According to recent scientific
literature the clinical relevance of PPV information is limited to sedated patients undergoing controlled
mechanical ventilation and without arrhythmias.
The PPV value calculated may be inaccurate in the following circumstances:
◆ RR is below 8 rpm;
◆ Tidal volume is below 8 ml/kg during ventilation;
◆ The patient suffers from acute right ventricular dysfunction (i.e. pulmonary heart disease).
PPV measurement has been verified only on adult patients.
14.6 PAWP Measurement
As an important index of hemodynamic monitoring, pulmonary artery wedge pressure (PAWP) is pressure measured
by catheter tip after a balloon-tipped Swan-Ganz catheter is wedged to the arteriole to block the forward blood
flow.
To Next Page
