Table 2.
Comparison of maternal characteristics and perinatal outcomes in twins with velamentous cord insertion according to chorionicity (n = 58).
| MC (n = 12) | DC (n = 46) | p | |
|---|---|---|---|
| Maternal characteristics | |||
| Maternal age at delivery (years) | 33.8 ± 3.0 | 35.0 ± 3.3 | 0.325 |
| Pregnancy conceived via ART | 2 (16.7%) | 46 (100%) | 0 |
| GA at delivery (weeks) | 35.0 ± 2.5 | 36.2 ± 1.9 | 0.078 |
| Pregnancy outcomes | |||
| Preeclampsia | 1 (8.3%) | 4 (8.7%) | 0.968 |
| GDM | 0 | 4(8.7%) | 0.29 |
| PPROM | 2 (16.7%) | 8 (17.4%) | 0.953 |
| Placenta previa | 0 | 3 (6.5%) | 0.364 |
| Vasa previa | 1 (8.3%) | 3 (6.5%) | 0.825 |
| PAS | 0 | 3 (6.5%) | 0.364 |
| Postpartum hemorrhage | 6 (50.0%) | 22 (47.8%) | 0.893 |
| PTB < 37 weeks | 8 (66.7%) | 18 (39.1%) | 0.088 |
| PTB < 34 weeks | 2 (16.7%) | 4 (8.7%) | 0.419 |
| Birth-weight discordance ≥ 20% | 4 (33.3%) | 8 (17.4%) | 0.549 |
| Birth-weight discordance ≥ 25% | 3 (25.0%) | 3 (6.5%) | 0.061 |
| sFGR | 3 (25.0%) | 7 (15.2%) | 0.424 |
| Neonatal outcomes | n = 24 fetuses | n = 92 fetuses | |
| Birth weight (g) | 2186 ± 485 | 2479 ± 487 | 0.01 |
| 1-min Apgar Score | 6.8 ± 0.9 | 7.4 ± 0.8 | 0.002 |
| 5-min Apgar Score | 7.9 ± 0.6 | 8.5 ± 0.6 | 0 |
| NICU admission | 14 (58.3%) | 37 (40.2%) | 0.111 |
MC, monochorionic twins; DC, dichorionic twins; ART, assisted reproductive technology; GA, gestational age; GDM, gestational diabetes mellitus; PPROM, preterm premature rupture of membranes; PAS, placenta accreta spectrum; PTB, preterm birth; sFGR, selective fetal growth restriction; NICU, neonatal intensive care unit.