Table 1.

Comparison between the three methods for all periods (global results)

	Maximum	Minimum	Mean	SD
CO value
PAC-CCO	12.8	2.1	4.9	1.8
NICOM™	13.1	1.4	4.8*†	1.1
Vigileo™	13.8	1.0	5.0	1.3
Differences in CO
Vigileo™ – PAC-CCO	8.9	-7.8	-0.1	1.2
NICOM™ – PAC-CCO	6.8	-6.3	0.1†	1.5
NICOM™ – Vigileo™	8.6	-9.1	-0.1	1.8
Relative errors
Vigileo™	1.97	0.0	0.19	0.17
NICOM™	1.37	0.0	0.23†	0.18

Relative error = (tested CO – PAC-CCO)/PAC-CCO.

* P < 0.05 vs. PAC-CCO, † P < 0.05 for NICOM™ vs. Vigileo™

CO = cardiac output; SD = standard deviation.