Abstract
Objective: To compare the neonatal and maternal outcomes between the patients with umbilical cord around the neck (≥3 loops) and with (1 or 2 loops). Methods: A retrospective analysis was conducted on the clinical data of 160 cases with multiple umbilical cord around the neck (≥3 loops) in the Department of Obstetrics, Women's Hospital School of Medicine Zhejiang University between January 2014 and April 2017.For each case, two control women who gave birth at the same day with vertex position and singletons were selected.The neonatal and maternal outcomes were compared. Result: (1) The incidence of cord multiple cord around the neck (≥3 loops) in our hospital was 0.45%. (2) Comparison between groups: The rate of abnormal fetal movement or abnormal cardiotocography in case group was higher than those of the control group, (33.13%, 53/160) vs (8.13%, 26/320), with significant difference, P=0.000.The Umbilical Artery Systolic/diastolic (S/D) ratio of the case group was lower than that of the control group, 2.00(0.40) vs 2.14(0.40), with significant difference, P=0.000.The cesarean section rate of the case group was higher than that of the control group, (81.25%, 130/160) vs (7.50%, 24/320), and the difference was statistically significant, P=0.000.Birth Weight of the case group was lower than that of the control group, (3 143±367) g vs (3 323±349) g, with significant difference, P=0.000.(3) Comparison between subgroups: The rate of lateral incision or obstetrical forceps in the subgroup of virginal delivery among the case group (n=30) was higher than that in the control group (n=296), (30.00%, 9/30) vs (12.50%, 37/296), with significant difference, P=0.009.While, the Apgar score at 1 and 5 min of the virginal delivery case in the case group were lower than that in the control group, 10(1.25) vs 10(0) and 10(0) vs 10(0), there were both significant difference, P=0.000, 0.012, respectively.The rate of meconium-stained amniotic fluid, 1 min Apgar score of ≤7 and NICU admission were showed no significance, all P>0.05.(4) After Logistic regression, the four factors most closely associated with meconium-stained amniotic fluid in patients with multiple cord around the neck (≥3 loops), which were gestational age ≥39 weeks, Birth Weight >3 500 g, umbilical cord around the neck ≥4 loops, and trial of labor. Conclusion: (1) Multiple umbilical cord around the neck (≥3 loops) had a more positive treatment. Vaginal delivery led to lower APGAR score, but didn't increase the incidence of neonatal asphyxia.(2) Independent risk factors for meconium-stained amniotic fluid were gestational age ≥39 weeks, Birth Weight>3 500 g, umbilical cord around the neck ≥4 loops and trial of labor.
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