Table 3.
Umbilical cord and placental pathology
| IUGR (n = 8) |
Control (n = 46) |
p | |||
|---|---|---|---|---|---|
| mean | ±SD | mean | ±SD | ||
| Vena umbilicalis vessel wall thickness, µm | 663.8 | 41.6 | 605.4 | 20.6 | ns |
| Vena umbilicalis lumen area, µm2 | 1,563,000.0 | 1,054,000.0 | 1,803,000.0 | 514,365.0 | ns |
| Arteria umbilicalis vessel wall thickness, µm | 636.4 | 41.0 | 678.2 | 15.0 | ns |
| Arteria umbilicalis lumen area, µm2 | 146,825.0 | 18,369.0 | 526,659.0 | 77,690.0 | 0.0296 |
| Ratio of star-shaped arteries | 0.71 | 0.29 | 0.89 | 0.13 | ns |
| UCI | 1.05 | 0.27 | 1.52 | 0.44 | Ns |
| Umbilical cord diameter, mm | 93.20 | 8.34 | 116.10 | 6.24 | Ns |
| Number of placental pathologies present | 2.13 | 0.30 | 0.70 | 0.11 | <0.0001 |
| Native placental volume, mL | 315.30 | 23.44 | 492.50 | 17.95 | <0.0001 |
| Placental volume after formalin fixation, mL | 368.80 | 23.15 | 461.50 | 15.01 | 0.0018 |
| Placental weight after formalin fixation, g | 401.80 | 18.33 | 468.90 | 15.49 | 0.0226 |
| Longest placental diameter, cm | 15.50 | 1.15 | 15.86 | 0.20 | ns |
| Shortest placental diameter, cm | 13.11 | 0.46 | 14.39 | 0.29 | 0.0196 |
| Placental thickness, cm | 2.58 | 0.14 | 2.71 | 0.08 | ns |
| Placental coefficient | 1.19 | 0.01 | 0.14 | 0.01 | <0.0001 |