Pulmonary artery catheter versus pulse contour analysis: a prospective epidemiological study

Table 1 Demographic features of study of patients

	All patients (n = 331)	PiCCO (n = 192)	PAC (n = 150)	p value
At ICU admission
Gender (male)	58.9%	57.3%	60.0%	0.66
Age in years	67 (54, 75)	64 (47, 74)	68 (57, 76)	0.0037
NYHA: III, IV	11.5%	10.9%	12.0%	0.86
IHD	31.1%	32.3%	28.7%	0.48
COPD	16.0%	14.1%	18.7%	0.30
Diabetes	22.1%	25.0%	19.3%	0.24
Previous renal function
Normal	58.6%	59.4%	58.7%	0.91
Impaired	22.4%	22.4%	22.0%	>0.99
ESRF	3.9%	4.7%	2.7%	0.40
Unknown	15.1%	13.5%	16.7%	0.45
SAPS II	49 (37, 61)	49 (37, 61)	47 (37, 61)	0.91
At study inclusion
Vasopressors	73.4%	75.0%	71.3%	0.46
Inotropic drugs	22.1%	13.0%	37.3%	<0.0001
Heart rate (beats per minute)	98 (84, 115)	99 (85, 118)	97 (84, 111)	0.48
MAP (mm Hg)	75 (68, 85)	76 (70, 85)	73 (63, 84)	0.0086
Cardiac index (litres/minute per m²)	3.0 (2.3, 4.0)	3.2 (2.6, 4.5)	2.6 (2.1, 3.5)	<0.0001
CVP (mm Hg)	12 (8, 15)	12 (9, 16)	11 (8, 14)	0.011
ITBI (ml/m²)	-	967 (768, 1,140)	-
ELWI (ml/kg)	-	8.9 (6.6, 13.0)	-
PAOP (mm Hg)	-	-	17 (12, 22)
Mechanical ventilation	81.6%	80.2%	84.0%	0.40
PEEP (cm H₂O)	5 (5, 10)	6 (5, 10)	5 (5, 8)	0.21
PaO₂/FiO₂ ratio (Torr)	186 (125, 279)	191 (126, 279)	185 (125, 285)	0.87
RRT	21.4%	26.6%	16.7%	0.036
Urea (mmol/l)	12.1 (7.1, 19.0)	12.0 (7.1, 18.7)	12.2 (7.1, 19.1)	0.91
Creatinine (μmol/l)	142 (100, 231)	151 (100, 231)	137 (97, 230)	0.42

Values are presented as medians (with 25th and 75th percentiles) or as percentages. COPD, chronic obstructive pulmonary disease; CVP, central venous pressure; ELWI, extra-vascular lung water index; ESRF, end-stage renal failure; ICU, intensive care unit; IHD, ischaemic heart disease; ITBI, intra-thoracic blood volume index; MAP, mean arterial pressure; NYHA, New York Heart Association; PAC, pulmonary artery catheter; PAOP, pulmonary artery occlusion pressure; PaO₂/FiO₂, partial pressure of oxygen in arterial blood/fraction of inspired oxygen; PEEP, positive end-expiratory pressure; PiCCO, pulse contour cardiac output; RRT, renal replacement therapy; SAPS II, simplified acute physiology score.

ISSN: 1364-8535