Nuchal cord: is it really the silent risk of pregnancy?

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Abstract
Objective: To evaluate the relationship between entanglement of umbilical cord around the fetal neck and adverse perinatal outcomes. Methods: In this prospective cohort study, perinatal outcomes of 218 pregnancies complicated with nuchal cord (NC) (study group) were compared with 190 uncomplicated pregnancies (control group). Main outcome measures were umbilical cord pH values, APGAR scores and cesarean section (C/S) rates. Fetal distress was stated as an abnormal heart rate pattern on electronic fetal heart monitorization. Results: There were no statistically significant differences in maternal demographic and obstetric features, between groups. There were no statistically significant differences regarding C/S rates between groups, even though fetal distress was significantly the leading indication for cesarean delivery, in the study group (p = 0.021). The number of entanglement was significantly related with fetal distress (p < 0.001). There were no statistically significant differences in umbilical cord gas values, one-minute and five-minute APGAR scores between the groups. Furthermore, there was a significant male dominance in the study group (p = 0.014) and also, amniotic fluid indexes (AFI) were significantly higher in this group (p = 0.002). Conclusion: This study demonstrated that, entanglement of umbilical cord around the fetal neck or NC is not related with adverse perinatal outcomes such as acidosis and low APGAR scores. So that, a targeted care on NC via ultrasound during labor, is not an essential part of the examination.

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