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- W2903535363 abstract "To evaluate the roles of vascular anastomosis and umbilical cord insertion abnormalities in birth weight discordance in monochorionic-diamniotic (MCDA) twin pregnancies without Twin–twin transfusion syndrome (TTTS). All MCDA twin placentas injected with coloured dye at our institution between 2007 and 2015 were included in the study. We excluded pairs of twins with TTTS, fetal demise, or severe fetal malformation. Those with a birth weight discordance ≥ 25% and < 25% were assigned to the discordant group and the concordant group, respectively. In each pair of twins, we described vascular anastomosis as either AA (arterioarterial) or VV (venovenous), and umbilical cord insertion abnormalities as either velamentous or marginal. We analysed risk factors for birth weight discordance using multiple logistic analysis. A total of 170 placentas were analysed (discordant group, n = 26: concordant group, n = 144). The incidence of VV anastomosis in the discordant group (31%) was significantly higher than that in the concordant group (12%), significantly (p < 0.01). Unilateral umbilical cord insertion abnormalities were significantly more common in the discordant group (73%) than in the concordant group (41%) (p < 0.01). However, there were no significantly differences in the incidences of AA anastomosis, normal umbilical cord insertion, and bilateral umbilical cord insertion abnormalities between the groups. Analysis of risk factors revealed that VV anastomosis (odds ratio [OR]: 3.1,95% confidence interval [CI]: 1.1-8.7, p < 0.01) and unilateral umbilical cord insertion abnormalities (OR: 4.9,95% CI: 1.7-14.0, p < 0.01) were independent risk factors for birth weight discordance. Unilateral umbilical cord insertion abnormalities and VV anastomosis are independent risk factors for birthweight discordance in MCDA twin pregnancies without Twin–twin transfusion syndrome." @default.
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- W2903535363 date "2016-09-01" @default.
- W2903535363 modified "2023-09-25" @default.
- W2903535363 title "OP13.03: The roles of vascular anastomosis and umbilical cord insertion abnormalities in birthweight discordance in monochorionic‐diamniotic twin pregnancies without Twin–twin transfusion syndrome" @default.
- W2903535363 doi "https://doi.org/10.1002/uog.16275" @default.
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