Arterial pressure-based cardiac output in septic patients: different accuracy of pulse contour and uncalibrated pressure waveform devices

Table 2 Evolution of hemodynamic parameters during therapeutic interventions

	Group 1				Group 2
	Baseline		After volume expansion		Baseline		After introduction/increase of norepinephrine
Heart rate (beats/min)	105	(82-130)	100	(89-123)	92	(82-120)	95	(79-115)
MAP (mm Hg)	69	(67-75)	76	(70-85)^a	52	(47-58)^b	72	(64-78)^a
CItd (L/min/m²)	3.2	(2.4-3.6)	3.7	(3.1-4.1)^a	2.9	(2.1-3.5)	2.9	(2.5-3.7)^a
CIpc (L/min/m²)	3.2	(2.4-3.6)	3.4	(2.8-4.0)^a	2.9	(2.1-3.5)	3.0	(2.4-3.6)^a
CIpw (L/min/m²)	2.9	(2.6-3.2)	3.2	(2.8-3.7)^a	2.7	(2.5-3.0)	3.0	(2.8-3.3)^a
SVRi (dyne/sec/m²/cm⁵)	1,741	1,355-2,267)	1,724	1,495-1,996)	1,832	(1,323-2,675)	2,229	(1,740-2,874)^a
GEDVi (ml/m²)	649	(554-715)	725	(649-803)^a	690	(602-474)	728	(674-790)^a

n = 40 in Group 1, and n = 40 in Group 2.
Data are expressed as median (25% to 75% interquartile). ^aP < 0.05, before versus after intervention; ^bP < 0.05, Group 2 versus Group 1.
MAP, mean arterial pressure; CItd, cardiac index measured by thermodilution; CIpc, pulse contour-based cardiac index measured with the PiCCO device; CIpw, arterial-pressure waveform-based cardiac index measured with the Vigileo device; SVRi, systemic vascular resistance indexed for body surface; GEDVi, global end-diastolic volume indexed for body surface.

ISSN: 1364-8535