RESUMO
Objective:To study the effect of excessive torsion of the umbilical cord on fetal or neonatal outcomes.Methods:The observation group was selected from the puerperae who delivered in Beijing Obstetrics and Gynecology Hospital from July 2016 to June 2020 with excessive torsion of the umbilical cord. In the same period, the puerperae without excessive torsion of the umbilical cord were selected as the control group with a ratio of 1∶1. The general condition, mode of delivery, perinatal outcomes, and the effect of different umbilical coiling index (UCI) [twisted umbilical cord weeks/umbilical cord length (cm)] on fetal and neonatal outcomes were retrospectively analyzed between two groups.Results:Compared with the control group, the observation group (1 780 cases) had smaller neonatal gestational age [(37.9±3.2) weeks vs. (38.4±2.9) weeks], birth weight [(3 007±726) g vs. (3 354±616) g] and length [(48.5±4.3) cm vs. (49.6±4.1) cm], but higher incidence of fetal distress [34.9% (622/1 780) vs. 12.9% (230/1 780)], neonatal asphyxia [1.5% (26/1 780) vs. 0.7% (13/1 780)], and cord blood pH<7.20 [4.2% (75/1 780) vs. 2.8% (49/1 780)], the difference was statistically significant ( P<0.05). The UCI≥0.73 group had lower neonatal gestational age, birth weight and length, but higher incidence of cord blood pH<7.20 and neonatal asphyxia than the UCI<0.73 group, with statistically significant differences ( P<0.05). Conclusions:Excessive torsion of the umbilical cord increases the incidence of fetal hypoxia and neonatal asphyxia and has a significant effect on neonatal gestational age, birth weight and length. The higher the UCI, the greater the impact on fetus and neonate.
RESUMO
Objective To investigate the healthy status of newborns with isolated single umbilical artery(ISUA).Methods A retrospective analysis was performed between newborns with ISUA (ISUA group,n =78)or without ISUA (control group,n =78),which were borned in our hospital during Jun 2006 ～Oct 2012.We compared the Apgar score at 1 and 5 minute,birth-weight,incidence of newborns admitted by neonate intensive care unit and pH value of umbilical arterial blood.The incidence of mothers amniocentesis for prenatal chromosome examination and outcomes of two groups were investigated.Results The birthweight of newborns with ISUA[(3246 ±75) g] was lower than that of the control group[(3565 ±58) g],the difference was statistically significant(P ＜ 0.05).While the differences of Apgar score,the incidence of newborns admitted by neonate intensive care unit,and pH value of umbilical arterial blood between two groups showed no significance (P ＞ 0.05).There were 26 cases underwent amniocentesis in ISUA group,however 1 case in control group.The fetal chromosomal tests were normal.Conclusion The healthy status of newborns with ISUA are the same as the newborns with three-vessel umbilical cord,and we need not take more care of the newborns with ISUA.