Student Research Committee, School of Medicine, Babol University of Medical Sciences, Babol, Iran.
Department of Obstetrics and Gynecology, Research Development Unit, Ayatollah Rouhani Hospital, School of Medicine, Babol University of Medical Sciences, Babol, Iran.
J Neonatal Perinatal Med. 2024;17(5):681-688. doi: 10.3233/NPM-230106.
The abnormal umbilical cord coiling index (UCI) may be one of the ways to predict adverse pregnancy outcomes. This study attempted to determine the association between abnormal UCI and maternal, fetal, and neonatal outcomes.
This longitudinal study was conducted on 400 women referred for delivery from April to August 2021. UCI was calculated by dividing the total number of coils by the total length of the umbilical cord in centimeters. In eligible cases, the length of the umbilical cord and the number of vascular coils along the total umbilical cord were measured after birth. UCI less than the 10th percentile and more than the 90th percentile was considered abnormal, and between the 10th and 90th percentiles was considered normal. Data were analyzed using SPSS version 20. P < 0.05 were considered statistically significant.
The mean length of the umbilical cord was 56.12±8.38 cm, the number of umbilical cord rings was 13.70±3.51, and the UCI was 0.24±0.07. In the regression analysis, women with gestational diabetes had a significant association with abnormal UCI (P = 0.044). Thus, the probability of abnormal UCI was about 3.5 times higher in women with gestational diabetes than in normal pregnancies. Also, the history of stillbirth had a significant association with abnormal UCI (P < 0.05).
It is recommended to perform a UCI examination after delivery as part of a neonatal examination to find an explanation for maternal, fetal, and neonatal outcomes.
异常的脐带缠绕指数（UCI）可能是预测不良妊娠结局的方法之一。本研究试图确定异常 UCI 与母婴、胎儿和新生儿结局之间的关系。
这是一项在 2021 年 4 月至 8 月期间进行的纵向研究，共纳入了 400 名分娩的女性。UCI 通过将脐带的总匝数除以脐带的总长度（厘米）来计算。在符合条件的情况下，在分娩后测量脐带的长度和沿脐带总长度的血管匝数。UCI 小于第 10 百分位和大于第 90 百分位被认为是异常的，在第 10 和第 90 百分位之间被认为是正常的。使用 SPSS 版本 20 进行数据分析。P 值<0.05 被认为具有统计学意义。
脐带的平均长度为 56.12±8.38cm，脐带环的数量为 13.70±3.51，UCI 为 0.24±0.07。在回归分析中，患有妊娠期糖尿病的女性与异常 UCI 有显著关联（P=0.044）。因此，患有妊娠期糖尿病的女性异常 UCI 的概率大约是正常妊娠的 3.5 倍。此外，死胎史与异常 UCI 有显著关联（P<0.05）。
建议在新生儿检查中进行 UCI 检查，以寻找母婴、胎儿和新生儿结局的解释。
