Table 4.
Noninvasive cardiometry parameters during PS and at the end of SBT the mean (± SD) CI values measured by noninvasive cardiometry (5.19 ± 0.72) were similar to those measured by echocardiography (5.04 ± 0.59) at the end of SBT (p-value = 0.105). However, the values measured by noninvasive cardiometry (4.89 ± 0.68) were greater than those measured by echocardiography (4.53 ± 0.51) during PS (p-value < 0.001). There was a positive correlation between CI measured by noninvasive cardiometry and echocardiography during PS and at the end of SBT (Fig. 3), and the difference was evaluated via a bland-Altman diagram (Fig. 4)
| PS (n = 50) (mean ± SD) |
SBT (n = 50) (mean ± SD) |
Test value• | p-value | |
|---|---|---|---|---|
| ICON | 83.38 ± 26.94 | 90.40 ± 29.87 | -2.341 | 0.023 |
| CI (L/m/m2) | 4.89 ± 0.68 | 5.19 ± 0.72 | -3.751 | 0.000 |
| SVV | 19.16 ± 7.75 | 19.24 ± 8.21 | -0.102 | 0.919 |
| TFC | 43.34 ± 16.51 | 41.40 ± 18.60 | 0.871 | 0.388 |
| FTC | 268.06 ± 47.52 | 255.28 ± 47.65 | 1.958 | 0.056 |
| SVR | 3218.84 ± 1709.54 | 2992.08 ± 1146.67 | 1.992 | 0.052 |
•: Paired t-test