16-1
16 Monitoring CCO
16.1 Introduction
The monitor uses PiCCO method to perform CCO monitoring.
The PiCCO method combines transpulmonary thermodilution and pulse contour analysis on the blood pressure
waveform. A cold bolus (e.g. normal saline 0.9%) with a known volume and temperature is injected into the right atrium
through a central venous catheter. The cold bolus mixes with the blood in the heart and the change in blood
temperature is measured with a thermistor at the distal end of the arterial thermodilution catheter placed in one of the
bigger systemic arteries, for example, the femoral artery. The monitor uses the transpulmonary thermodilution method
to measure C.O., GEDV (Global End Diastolic Volume) and EVLW (Extra Vascular Lung Water). With the C.O. value
measured with the transpulmonary thermodilution method and the result of the pulse contour analysis, a
patient-specific calibration factor is calculated. The monitor uses this value to compute CCO and the other continuous
hemodynamic parameters.
16.2 Safety Information
WARNING
CCO monitoring is restricted to adult and pediatric patients.
Use only pressure transducers specified in this manual. Never reuse disposable pressure transducers.
Make sure that the applied parts never contact other conductive parts.
To reduce the hazard of burns during high-frequency surgical procedure, ensure that the monitor’s cables
and transducers never come into contact with the high-frequency surgical units.
When using accessories, their operating temperature should be taken into consideration. For details, refer
to instructions for use of accessories.
Connector for IBP cable
Connector for PiCCO cable
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