Systemic vascular resistance has an impact on the reliability of the Vigileo-FloTrac system in measuring cardiac output and tracking cardiac output changes

Abstract

These results indicate that the reliability of the Vigileo-FloTrac system to measure CO and track changes in CO induced by phenylephrine administration was not clinically acceptable.

The ability of the Vigileo-FloTrac system to measure cardiac output and track cardiac output changes during one-lung ventilation

“…2). Similarly, we have previously [10] reported that the percentage error with normal ventilated patients was acceptable only for normal SVRI. Sotomi et al [20] studied cardiac surgery patients and found a high percentage error (60.3 %); however, in a sub-analysis based on SVR, they noted a relatively satisfactory concordance in normal SVR patients regardless of vasoactive agent use.…”

“…Many studies have reported about the bias between APCO and ICO under various circumstances, which are summarized in Table 3 [10,[17][18][19][20][21]. Akiyoshi et al [17] has investigated about the ability of Vigileo TM -FloTrac TM system to measure CO in liver transplant surgery patients.…”

“…3 APCO cardiac output by the Vigileo TM -FloTrac TM system, ICO cardiac output by thermodilution pulmonary artery catheter. The four-quadrant plot to assess the trending abilities of APCO against ICO of our previous study on patients with normal ventilation [10]. In that study, we investigated the ability of APCO to track phenylephrine-induced CO changes in cardiac surgery patients and found that concordance of the measurements of CO changes were 7.7 % for high SVRI; 28.8 %, for normal SVRI; and 67.5 %, for low SVRI in the fourquadrant plot analysis, while the mean angular bias was -3.51°, -46.0°, and -22.3°; and the radial LOA, 87°, 85°, and 70°; and the angular concordance rate, 5.3, 25.0, and 42.1 %, for high, normal, and low SVRI, respectively, in polar plot analysis.…”

“…This system has been shown to be useful for perioperative fluid management and goaldirected therapy (GDT) [5][6][7][8][9]. We have previously reported that the reliability of this system in CO measurement and tracking phenylephrine-induced CO changes was not clinically acceptable, especially for low or high systemic vascular resistance (SVR) [10]. On the other hand, in patients with OLV, the reliability of the Vigileo TM -FloTrac TM system in CO measurement has not been fully revealed.…”

Monitoring of Cardiac Output and Its Derivatives

“…Finally, in numerous validation studies, when the vascular tone was assigned a severe condition such as vasoplegia (septic shock) or when vasoactive drugs were infused, the cardiac output values provided by this technique lacked precision [59]. Therefore, the use of this technology in ICU patients in shock is cautioned and cannot be considered as a reference method [60].…”