Table 4.
Patient variables during CPB and oxygenator performance.
| SX18 | FX15 | Inspire6F | p Value | |
|---|---|---|---|---|
| Number | 20 | 20 | 20 | — |
| Blood flow (L/min) | 4.3 ± .6 | 4.5 ± .6 | 4.5 ± .5 | .302 |
| SvO2 (%) | 79.4 ± 5.8 | 82.5 ± 3.4 | 81.9 ± 5.4 | .116 |
| SVR | 1,374 ± 340 | 1,350 ± 205 | 1,316 ± 339 | .771 |
| CPB mean line pressure (mmHg) | 160.4 ± 20.9 | 209.0 ± 43.4 | 192.1 ± 24.6 | .0001* |
| CPB mean sweep rate (L/min) | 2.3 ± .6 | 2.4 ± .9 | 2.5 ± .5 | .607 |
| CPB mean FiO2 (%) | 74.5 ± 6.54 | 79.1 ± 8.4 | 69.1 ± 7.9 | .0005† |
| CaO2 (mL O2/dL) | 12.4 ± 1.1 | 13.6 ± 1.7 | 13.1 ± 1.4 | .049‡ |
| CvO2 (mL O2/dL) | 9.5 ± 1.2 | 10.7 ± 1.5 | 10.3 ± 1.5 | .021§ |
| AVO2 difference (mL O2/dL) | 2.9 ± .6 | 2.8 ± .5 | 2.8 ± .6 | .800 |
| DO2 (mL O2/min) | 528.2 ± 102.3 | 611.1 ± 150.4 | 603.0 ± 80.6 | .049¶ |
| DO2/BSA (mL O2/min/m2) | 291.1 ± 56.1 | 297.5 ± 38.7 | 288.4 ± 34.1 | .799 |
| VO2 (mL O2) | 125.2 ± 32.6 | 127.4 ± 35.2 | 129.4 ± 31.1 | .921 |
| VO2/BSA (mL O2/min/m2) | 67.9 ± 14.0 | 65.3 ± 12.1 | 65.7 ± 15.8 | .810 |
| O2 extraction | .24 ± .07 | .21 ± .03 | .22 ± .05 | .133 |
All data are mean ± SD.
*
SX18 vs. FX15 (p < .0001) and Inspire (p < .006).
†
Inspire vs. SX18 (p < .034) and FX15 (p < .0001).
‡
SX18 vs. FX15 (p < .047).
§
SX18 vs. FX15 (p < .019).
¶
SX18 vs. FX15 (p < .049).