Table 3.
Comparison of fetal cardiovascular parameters between the left and right ventricles for fetuses with an umbilical artery pulsatility index > 95th percentile
| Cardiovascular parameter | Left Ventricle | Right Ventricle | P value |
|---|---|---|---|
| Volume in end-systole (mL) | 0.10 (0.03 – 0.17) | 0.28 (0.16 – 0.55) | < 0.001 |
| Volume in end-diastole (mL) | 0.53 (0.29 – 0.91) | 0.75 (0.5 – 1.52) | < 0.001 |
| Stroke volume (mL) | 0.43 (0.26 – 0.78) | 0.5 (0.31 – 0.92) | < 0.05 |
| Cardiac output (mL/min) | 61.1 (34.9 – 104.9) | 65.9 (45.3 – 127) | < 0.05 |
| Cardiac output adjusted by EFW (mL/min/kg) | 67.8 (44.7 – 84.1) | 77.4 (66.1 – 123.8) | < 0.05 |
| Cardiac Output adjusted by AC (mL/min/cm) | 3.06 (1.82 – 4.3) | 3.11 (2.36 – 5.39) | < 0.05 |
| Cardiac Output adjusted by HC (mL/min/cm) | 2.69 (1.48 – 3.91) | 2.63 (1.94 – 5.06) | < 0.05 |
| Cardiac Output adjusted by FL (mL/min/cm) | 13.3 (7.5 – 18.7) | 14.0 (10.1 – 24.0) | < 0.05 |
| Ejection fraction (%) | 83.7 (77.4 – 87.9) | 64.7 (58.1 – 76) | < 0.001 |
Data given as group-level median (interquartile range); non-parametric comparisons were performed; median right to left ratios presented in the text were determined using ratios calculated within each fetus to account for the paired nature of these measures, and thus, are not consistent with the right to left ratios of the group level measures presented in this table.
AC, abdominal circumference; EFW, estimated fetal weight; HC, head circumference; FL, femoral diaphysis length