Critical Care Research and Practice

Research Article

Heart-Protective Mechanical Ventilation in Postoperative Cardiosurgical Patients

Table 3

Changes in hemodynamic profile in patients from the interventional group not requiring catecholamines for three hours of study, median (25^th; 75^th percentile), n = 50.


Data	Hours in ICU
Data	#1	#2	#3

HR (bpm)	80 (69; 86)	77 (71; 85)	76 (72; 86)	= 0.7 p_3-2 = 0.5 = 0.97

MAP (mmHg)	85 (79; 97)	83.5 (76; 91)	73 (69; 82)	<0.001 = 0.2

PAP mean (mmHg)	16 (13; 18)	17 (14; 19)	19 (16; 22)	<0.001 = 0.06

CVP (mmHg)	6 (5; 8)	6 (4; 7)	8 (6; 9)	<0.001 = 0.7

PAWP (mmHg)	7 (5; 9)	8 (6; 9)	10 (7; 11)	<0.001 = 0.1

CO (l × min⁻¹)	5.05 (4.30; 5.90)	5.20 (4.40; 5.90)	4.65 (4.30; 5.30)	= 0.001 <0.001 = 0.21

CI (l × min⁻¹ × m2⁻¹)	2.6 (2.4; 2.9)	2.7 (2.4; 3.0)	2.5 (2.2; 2.7)	= 0.002 <0.001 = 0.2

SV (ml)	66 (54; 80)	65 (54; 78)	60 (54; 67)	= 0.002 <0.001 = 0.9

SI (ml × m2⁻¹)	34 (29; 39)	35 (29; 40)	31 (29; 35)	= 0.009 <0.001 = 0.5

SVR (dyn × sec⁻¹ × cm⁻⁵)	1254 (1077; 1509)	1142 (1071; 1426)	1088 (963; 1341)	<0.001 = 0.001 = 0.06

PVR (dyn × sec⁻¹ × cm⁻⁵)	127.5 (111; 163)	134.5 (109; 157)	152.5 (136; 183)	<0.001 = 0.98

HR: heart rate; MAP: mean arterial pressure; PAP: pulmonary artery pressure; CVP: central venous pressure; PAWP: pulmonary artery wedge pressure; CO: cardiac output; CI: cardiac index; SV: stroke volume; SI: stroke index; SVR: systemic vascular resistance; PVR: pulmonary vascular resistance; : Wilcoxon test.