Table 3.
Comparison of extracorporeal membrane oxygenation parameters between responders and nonrespondersa
| Parameters | Responders (n = 13) | Nonresponders (n = 12) | P values |
|---|---|---|---|
| PO (L/minute) | |||
| Baseline | 4.70 (3.45 to 4.99) | 4.25 (3.49 to 5.02) | 0.91 |
| PLR | 4.76 (3.24 to 5.05) | 4.23 (3.5 to 5) | 0.83 |
| Volume expansion | 4.81 (3.36 to 5.14)b, c | 4.20 (3.57 to 5.09) | 0.97 |
| PI (%) | |||
| Baseline | 0.95 (0.59 to 1.9) | 0.78 (0.48 to 1.20) | 0.35 |
| PLR | 0.68 (0.4 to 1)b | 0.69 (0.45 to 1) | 0.78 |
| Volume expansion | 0.62 (0.6 to 1.3)b, c | 0.91 (0.54 to 1.1) | 0.05 |
| RPM | 3950 (3078 to 4004) | 3838 (3010 to 3966) | 0.96 |
| PO/RPM ratio (mL/RPM) | |||
| Baseline | 1.24 (1.07 to 1.31) | 1.23 (1.11 to 1.32) | 0.83 |
| PLR | 1.26 (1.03 to 1.33)b | 1.23 (1.13 to 1.32) | 0.62 |
| Volume expansion | 1.27 (1.06 to 1.32)b, c | 1.25 (1.13 to 1.32) | 0.68 |
| PO/CO ratio (%) | |||
| Baseline | 66 (60 to 91) | 75 (56 to 93) | 0.7 |
| PLR | 60 (51 to 77)b | 73 (62 to 105) | 0.05 |
| Volume expansion | 54 (49 to 69)b, c | 72 (55 to 100) | 0.05 |
aPLR, passive leg raising; PO, pump outflow; PI, pulse index; RPM, rotations per minute; CO, cardiac output. bP < 0.05 vs baseline; cP < 0.05 vs PLR. Values are medians (25th to 75th interquartile ranges).