Effects of thoraco-pelvic supports during prone position in patients with acute lung injury/acute respiratory distress syndrome: a physiological study

Table 5 Hemodynamics

Variable	Units	Supine	Prone without supports	Prone with supports
CI	(l/minute)/m²_BSA	3.2 ± 0.7	3.2 ± 0.6	3.1 ± 0.5
SVI	ml/m²_BSA	38.1 ± 7.2	37.8 ± 6.8	34.9 ± 5.4^a,b
HR	min^-1	79.6 ± 17.3	82.1 ± 17.9	86.7 ± 16.7^a,b
Mean BP	mmHg	83.7 ± 8.0	89.2 ± 9.4	85.2 ± 11.8
Systolic BP	mmHg	123.0 ± 16.5	132.0 ± 18.4^a	123.8 ± 19.8
Diastolic BP	mmHg	64.0 ± 7.6	67.8 ± 9.8	65.9 ± 9.8
Mean PAP^c	mmHg	27.4 ± 3.0	31.0 ± 6.6	27.1 ± 9.0^b
Systolic PAP^c	mmHg	38.6 ± 5.1	41.8 ± 11.3	36.8 ± 11.9^b
Diastolic PAP^c	mmHg	21.8 ± 1.9	25.6 ± 4.7	22.2 ± 7.5^b
WP^d	mmHg	22.0 ± 5.7	24.4 ± 6.6	23.2 ± 7.5
CVP	mmHg	12.0 ± 2.3	13.0 ± 2.8	12.7 ± 4.3
Diuresis	ml	111 ± 71	90 ± 64^a	91 ± 58^a

CI, cardiac index; BSA, body surface area; SVI, stroke volume index; HR, heart rate; BP, arterial blood pressure; PAP, pulmonary artery pressure; WP, wedge pressure; CVP, central venous pressure. ^ap ≤ 0.05 compared with supine; ^bp ≤ 0.05 compared with prone without supports; ^ccardiac output in nine patients only; ^dSwan–Ganz in five patients only.

ISSN: 1364-8535