Table 3.
Comparison of cardiac preload variables between responders and non-responders
| Responders | Non-responders | P a | ||
|---|---|---|---|---|
| Stroke volume variation (%) |
Pre |
13.9 ± 4.6 (13.0, 11.0-16.3) |
12.2 ± 4.1 (11.5, 9.0-15.5) |
0.232 |
| |
Post |
7.8 ± 4.1 (7.0, 4.8-10.3)b |
6.4 ± 2.2 (6.0, 5.0-7.0)b |
0.27 |
| Pulse pressure variation (%) |
Pre |
10.6 ± 3.5 (9.0, 8.0-13.0) |
8.7 ± 3.7 (8.5, 6.0-11.0) |
0.107 |
| |
Post |
4.9 ± 2.4 (4.0, 3.5-5.0)b |
4.5 ± 1.4 (4.0, 3.5-5.0)b |
0.862 |
| Central venous pressure (mmHg) |
Pre |
5 ± 2 (5, 4–7) |
7 ± 3 (7, 5–9) |
0.033 |
| |
Post |
7 ± 2 (8, 6–9)b |
9 ± 2 (9, 8–11)b |
0.008 |
| ITBVI(L/m2) |
Pre |
0.78 ± 0.1 (0.78, 0.72-0.85) |
0.81 ± 0.09 (0.83, 0.75-0.87) |
0.292 |
| |
Post |
0.84 ± 0.09 (0.85, 0.77-0.91)b |
0.84 ± 0.10 (0.84, 0.76-0.89) |
0.964 |
| IDVGI(L/m2) |
Pre |
4.2 ± 0.7 (4.2, 3.9-4.8) |
4.6 ± 0.5 (4.6, 4.3-4.8) |
0.043 |
| Post | 4.8 ± 0.7 (4.9, 4.4-5.3)b | 4.9 ± 0.6 (5.0, 4.8-5.2)b | 0.574 |
Data are presented as mean ± SD (median, interquartile range).
aBetween responders and non-responders.
bP <0.001 as compared with pre-fluid volume loading values.
ITBVI, Indexed intrathoraci blood volume; IDVGI, Indexed initial distribution volume of glucose; Pre, Immediately before volume loading; Post, 10 min after volume loading.