Table 4

Haemodynamic and respiratory gas modifications at the four time points of the study: subgroups A1 and A2


Time point


Parameter
 Group
 1
 2
 3
 4
HR (beats/min)
 A1
 58 ± 9
 60 ± 10
 57 ± 9
 55 ± 7

A2
 65 ± 13
 59 ± 13
 66 ± 7†
 65 ± 6
MSP (mmHg)
 A1
 89 ± 18
 89 ± 19
 86 ± 19
 88 ± 18

A2
 76 ± 11
 67 ± 16
 72 ± 12
 78 ± 13
SVRI (dynes·s/cm5 per m2)
 A1
 2741 ± 635
 2578 ± 540
 2501 ± 605
 2564 ± 447

A2
 2946 ± 471
 2457 ± 482
 2080 ± 544*†‡
 2554 ± 728
CI (l/min per m2)
 A1
 2.53 ± 0.5
 2.61 ± 0.5
 2.61 ± 0.5
 2.57 ± 0.4

A2
 2.00 ± 0.3
 2.07 ± 0.5
 2.70 ± 0.5*†
 2.38 ± 0.4
SVI (ml/beat per m2)
 A1
 44 ± 5
 44 ± 6
 46 ± 6
 47 ± 7

A2
 32 ± 9
 36 ± 9
 41 ± 7*
 37 ± 9
PVRI (dynes·s/cm5 per m2)
 A1
 208 ± 104
 207 ± 76
 194 ± 77
 226 ± 84

A2
 278 ± 92
 256 ± 35
 224 ± 36*‡
 274 ± 65
PaO2 (mmHg)
 A1
 83 ± 9
 78.2 ± 10
 75.3 ± 10
 78.9 ± 12

A2
 76.9 ± 13
 68.4 ± 13
 65.8 ± 7*
 71.4 ± 11
SaO2 (%)
 A1
 96.2 ± 1
 95.3 ± 2
 95 ± 2
 95.4 ± 2

A2
 95.1 ± 2
 93.6 ± 2
 93 ± 2*
 94 ± 3
Qsp/Qt (%)
 A1
 12 ± 4
 15 ± 6
 15 ± 5
 13 ± 6

A2
 14 ± 6
 20 ± 6
 20 ± 6*
 17 ± 8

*P < 0.05, versus time point 1 within each group. See text for definitions of groups, subgroups and time points. CI, cardiac index; CVP, central venous pressure; HR, heart rate; MPP, mean pulmonary pressure; MSP, mean systemic pressure; PaCO2, arterial carbon dioxide tension; PaO2, arterial oxygen tension; PCWP, pulmonary capillary wedge pressure; PVRI, pulmonary vascular resistance index; Qsp/Qt, shunt fraction; SaO2, arterial oxygen saturation; SVI, stroke volume index; SVRI, systemic vascular resistance index.

Bertolissi et al. Critical Care 2002 6:234   doi:10.1186/cc1495