Why the study?
Does impedance cardiography accurately measure cardiac output compared to thermodilution in patients undergoing open heart surgery?
Does impedance cardiography accurately measure cardiac output compared to thermodilution in patients undergoing open heart surgery?
Impedance cardiography demonstrated clinically significant errors and inaccurately tracked cardiac output changes compared to thermodilution during open heart surgery.
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Poor agreement with thermodilution cautions against routine use; leaves open any role for impedance cardiography and requires prospective validation.
Background: Impedance Cardiography is a noninvasive and simple method of cardiac output determination. The purpose of this study was to compare an impedance device with the thermodilution method during the intraoperative period in patients undergoing open heart surgery.
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Park et al. (2002) studied this question.
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