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2015 ; 8
(3
): 3530-7
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Cardiac output measurement using a modified carbon dioxide Fick method:
comparison analysis with pulmonary artery catheter method and pulse induced
contour cardiac output method
#MMPMID26064245
Li T
; Cai H
; Pan H
; Pu Q
Int J Clin Exp Med
2015[]; 8
(3
): 3530-7
PMID26064245
show ga
OBJECTIVES: In the present study, cardiac output in mechanically ventilated
patients were determined using three methods including modified CO2-Fick (mCO2F),
pulmonary artery catheter (PAC), and pulse induced contour cardiac output (PiCCO)
methods and the results were compared to assess the effectiveness of mCO2F method
in measuring the cardiac output. METHOD: Mechanically ventilated and
hemodynamically unstable patients (n=39) were sedated and intubated with
Swan-Ganz or PiCCO arterial catheters. At the beginning of the experiment and at
4 h after the experiment, the CO2 concentration in expiratory air was measured
through a CO2 monitor and it was used further in the cardiac output calculation
using mCO2F method. The cardiac output was also determined using PAC and PiCCO
methods. RESULTS: The cardiac output determined by PAC and mCO2F method was not
significantly (P>0.05) different [5.53±2.85 L.min(-1) (PAC) and 5.96±2.92
L.min(-1) (mCO2F)] at the beginning of the experiment and [6.22±2.7 L.min(-1)
(PAC) and 6.36±2.35 L.min(-1) (mCO2F)] at 4 h after the experiment; however, they
were highly correlated (r=0.939 and 0.908, P<0.001). The cardiac output
determined by PiCCO and mCO2F method was also not significantly (P>0.05)
different [6.05±2.49 L.min(-1) (PiCCO) and 5.44±1.64 L.min(-1) (mCO2F)] at the
beginning of the experiment, and [6.17±2.04 L.min(-1) (PiCCO) and 5.70±1.72
L.min(-1) (mCO2F)] at 4 h after the experiment; however, they were highly
correlated (r=0.776 and 0.832, P<0.001). CONCLUSION: The mCO2F method could
accurately measure the cardiac output in mechanically ventilated patients without
using any expensive equipment's and invasive procedures.