The FloTrac Sensor

FloTrac Sensor Frequently Asked Questions

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  • How does this technology work?
  • How can I rely on the data from this system with no manual calibration?
  • How does the FloTrac sensor compare to bolus cardiac output?
  • What is required to obtain accurate readings?
  • What are the limitations of the FloTrac sensor?
  • What is stroke volume variation (SVV)?
  • What does SVV tell me? Why is SVV important?
  • What is normal SVV?
  • Will CO measurement be accurate when you see a change in vessel compliance or resistance?
  • Can I display data from the Vigileo monitor on a bedside monitor?
  • Can I use a Philips VueLink module with the Vigileo monitor?
  • Can I use my Vigilance monitor cables with my Vigileo monitor?
  • What about the link between the Vigileo monitor and central monitoring or data management systems?
  • Can the FloTrac sensor be used on radial or femoral arterial sites?
  • How is this different from the pulse contour analysis or the pulse power technologies?

1. Manecke, G: Poster SCCM 2005
2. McGee, W: Poster ISICEM 2005
3. Parry-Jones AJD, Pittman JAL: Arterial pressure and stroke volume variability as measurements for cardiovascular optimization. International Journal of Intensive Care 2003, 67-72.
4. Michard F and Teboul JL: Using heart-lung interactions to assess fluid responsiveness during mechanical ventilation. Crit Care 2000, 4: 282-9.
5. Reuter DA, Felbinger TW, Kilger E, Schmidt C, Lamm P, Goetz AE: Optimizing fluid therapy in mechanically ventilated patients after cardiac surgery by on-line monitoring of left ventricular stroke volume variations. Comparison with aortic systolic pressure variations. Br J Anaesth 2002, 88: 124-6.
6. Reuter DA, Kirchner A, Felbinger TW, Weis FC, Kilger E, Lamm P, Goetz AE: Usefulness of left ventricular stroke volume to assess fluid responsiveness in patients with reduced cardiac function. Crit Care Med 2003, 31: 1399-404.
7. Reuter DA, Felbinger TW, Schmidt C, Kilger E, Goedje O, Lamm P, Goetz AE: Stroke volume variations for assessment of cardiac responsiveness to volume loading in mechanically ventilated patients after cardiac surgery. Intensive Care Med 2002, 28: 392-8.
8. Reuter DA, Goetz AE, Peter K: Assessment of volume responsiveness in mechanically ventilated patients. Anaesthesist 2003, 52: 1010-3.
9. Wiesenack C, Prasser C, Rodig G, Keyl C: Stroke volume variation as an indicator of fluid responsiveness using pulse contour analysis in mechanically ventilated patients. Anesth Analg 2003, 96: 1254-7.
10. Pinsky MR: Probing the limits of arterial pulse contour analysis to predict preload responsiveness. Anesth Analg 2003, 96: 1245-7.
11 . Laxminarayan S, Laxminarayan R, Langewouters GJ, Vos AV: Computing total arterial compliance of the arterial system from its input impedance. Med Biol Eng Comput, 1979, 17: 623-8.
12. Berton, C and Cholley, B: Equipment review: New techniques for cardiac output measurement – esophageal Doppler, Fick principle using carbon dioxide, and pulse contour analysis. Crit Care 2002, 6: 216-21.
13. Chaney JC and Derdak S: Minimally invasive hemodynamic monitoring for the intensivist: Current and emerging technology. Crit Care Med 2002, 30: 2338-45.

There are no absolute contraindications for using the FloTrac sensor in patients requiring invasive pressure monitoring.

    Sepsis/Infection -
    Positive cultures can result from contamination of the pressure setup. Increased risks of septicemia and bacteremia have been associated with blood sampling, infusing fluids, and catheter related thrombosis.

    Air Emboli -
    Air can enter the patient through stopcocks that are inadvertently left open, from accidental disconnection of the pressure setup, or from flushing residual air bubbles into the patient.

    Clotted Catheter and Bleed-Back -
    If the flush system is not adequately pressurized relative to the patient’s blood pressure, blood bleed-back and catheter clotting may occur.

    Overinfusion -
    Excessive flow rates may result from pressures greater than 300 mmHg. This may result in a potentially harmful increase in blood pressure and fluid overdose.

    Abnormal Pressure Readings -
    Pressure readings can change quickly and dramatically because of loss of proper calibration, loose connection, or air in the system.

VueLink is a trademark of Philips Medical Systems V.B.
CAUTION: Federal (United States) law restricts this device to sale by or on the order of a physician. See instructions for use for full prescribing information, including indications, contraindications, warnings, precautions and adverse events.