Table 3.
Accuracy of echocardiographic parameters for predicting fluid responsiveness
| AUC | Cutoff values | Sensitivity | Specificity | Positive predictive value | Negative predictive value | |
|---|---|---|---|---|---|---|
| ∆VTI50 |
0.91 ± 0.04 |
9% |
74% |
95% |
94% |
79% |
| ∆VTI500 |
0.95 ± 0.03 |
19% |
89% |
100% |
100% |
90% |
| ∆CO50 |
0.95 ± 0.03 |
6% |
93% |
91% |
91% |
93% |
| ∆SV50 |
0.96 ± 0.03 |
10% |
90% |
100% |
100% |
91% |
| ∆SV500 | 1.00 | 15% | 100% | 100% | 100% | 100% |
∆CO50, variation of cardiac output after infusion of 50 ml of fluid over 10 seconds; ∆SV50, variation of stroke volume after infusion of 50 ml of fluid over 10 seconds; ∆SV500, variation of stroke volume after infusion of 500 ml fluid over 15 minutes; ∆VTI50, variation of velocity time index after infusion of 50 ml of fluid over 10 seconds; ∆VTI500, variation of velocity time index after infusion of 500 ml of fluid over 15 minutes; AUC, area under the receiver operating characteristic curves.