Table 2.
Correlations of each parameters of ductus venosus flow velocity waveforms (DV-FVW) measurements and right and left ventricular measurements in fetal growth restriction, overall and according to gestational age (GA) at examination (exam)
| Parameters | All | r | P | GA at exam ≤ 28 + 6 weeks |
r | P | GA at exam >28 + 6 weeks |
r | P |
|---|---|---|---|---|---|---|---|---|---|
| DV-FVW | n = 31 | n = 13 | n = 18 | ||||||
| FHR (bpm) | 141 (±9) | 139 (±9) | 143 (±7) | ||||||
| DV-PI | 0.987 (±0.58) | −0.677 | < 0.001 | 1.243 (±0.53) | − 0.819 | < 0.001 | 0.802 (±0.55) | −0.634 | 0.007 |
| DV-S/D (ratio) | 1.693 (±0.38) | 0.428 | 0.016 | 1.425 (±0.23) | 0.552 | 0.050 | 1.886 (±0.35) | 0.518 | 0.028 |
| DV-S/D (z-score) | −1.724 (±1.04)* | 0.489 | 0.005 | −2.637 (±0.65) * | 0.726 | 0.005 | − 1.065 (±0.72) * | 0.635 | 0.020 |
| Right ventricle | n = 22 | n = 9 | n = 13 | ||||||
| FHR (bpm) | 142 (±7) | 143 (±8) | 141 (±6) | ||||||
| TV-S/D (ratio) | 2.218 (±0.45) | −0.017 | 0.940 | 2.035 (±0.26) | 0.090 | 0.817 | 2.346 (±0.51) | −0.018 | 0.952 |
| TV-S/D (z-score) | −0.826 (±0.87) * | 0.060 | 0.789 | −1.453 (±0.45) * | 0.189 | 0.626 | −0.392 (±0.83) | 0.169 | 0.580 |
| Left ventricle | n = 23 | n = 9 | n = 14 | ||||||
| FHR (bpm) | 142 (±6) | 142 (±7) | 142 (±6) | ||||||
| MV-S/D (ratio) | 1.865 (±0.70) | −0.159 | 0.465 | 1.761 (±0.22) | −0.147 | 0.706 | 1.933 (±0.19) | −0.119 | 0.687 |
| MV-S/D (z-score) | −0.825 (±0.70) * | −0.006 | 0.979 | −1.412 (±0.48) * | −0.105 | 0.788 | −0.448 (±0.54) | 0.218 | 0.566 |