|
Haemodynamic and respiratory gas modifications at the four time points of the study: subgroups B1 and B2 |
|||||
| Time point |
|||||
|
|
|||||
| Parameter |
Group |
1 |
2 |
3 |
4 |
|
|
|||||
| HR (beats/min) |
B1 |
62 ± 10 |
60 ± 12 |
62 ± 10 |
59 ± 9 |
| B2 |
70 ± 10 |
67 ± 11 |
66 ± 12 |
66 ± 11 |
|
| MSP (mmHg) |
B1 |
90 ± 18 |
91 ± 20 |
91 ± 21 |
95 ± 20 |
| B2 |
84 ± 18 |
83 ± 18 |
84 ± 20 |
86 ± 21 |
|
| SVRI (dynes· s/cm5 per m2) |
B1 |
2511 ± 562 |
2623 ± 519 |
2392 ± 380 |
2607 ± 415 |
| B2 |
2884 ± 1200 |
3021 ± 1600 |
2842 ± 1253 |
2980 ± 1160 |
|
| CI (l/min per m2) |
B1 |
2.80 ± 0.5 |
2.69 ± 0.4 |
2.90 ± 0.5 |
2.70 ± 0.4 |
| B2 |
2.46 ± 0.6 |
2.36 ± 0.6 |
2.49 ± 0.7 |
2.40 ± 0.6 |
|
| SVI (ml/beat per m2) |
B1 |
46 ± 10 |
46 ± 8 |
47 ± 7 |
46 ± 8 |
| B2 |
36 ± 8 |
36 ± 9 |
38 ± 11 |
37 ± 10 |
|
| PVRI (dynes·s/cm5 per m2) |
B1 |
218 ± 64 |
227 ± 76 |
253 ± 77 |
242 ± 96 |
| B2 |
296 ± 183 |
365 ± 228 |
320 ± 197 |
332 ± 207 |
|
| PaO2 (mmHg) |
B1 |
75.3 ± 12 |
74.4 ± 13 |
73 ± 13 |
73 ± 12 |
| B2 |
73.6 ± 13 |
72 ± 13 |
73.4 ± 10 |
70 ± 9 |
|
| SaO2 (%) |
B1 |
95 ± 2 |
94.5 ± 2 |
94.4 ± 2 |
94.7 ± 2 |
| B2 |
94.5 ± 2 |
94 ± 2 |
94.6 ± 2 |
94 ± 2 |
|
| Qsp/Qt (%) |
B1 |
16 ± 7 |
17 ± 8 |
17 ± 7 |
16 ± 7 |
| B2 |
16 ± 5 |
17 ± 6 |
16 ± 6 |
17 ± 4 |
|
|
No significant difference was observed within the two groups. See text for definitions of groups, subgroups and time points. CI, cardiac index; HR, heart rate; MSP, mean systemic pressure; PaO2, arterial oxygen tension; 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 |
|||||