Abstract
Purpose
To evaluate the effects of nuchal cord and the number of loops during labor and delivery on delivery outcomes among women with singleton pregnancy who delivered vaginally.
Methods
This retrospective cohort study included 42,798 women with singleton, vertex, and vaginal deliveries at 24–43 weeks of gestation. We analyzed delivery outcomes based on the number of nuchal cord loops.
Results
A total of 42,798 deliveries met the inclusion criteria, of which, 3809 (8.9%) had nuchal cord with 1 loop at delivery, 1035 (2.42%) had 2 loops, and 258 (0.6%) had 3 loops. Nuchal cord with 3 loops compared to no nuchal cord has been associated with higher incidence of intrauterine fetal death (1.9%), Apgar scores less than 7 at 1 and 5 min (7.4%, 2.3%), and higher rate of operative vaginal deliveries (17.5%). Nuchal cord with 2 or 3 loops was associated with higher incidence of intrauterine growth restriction (10.2%, 11.6%). In a multiple logistic regression model, nuchal cord with 3 loops was an independent risk factor for operative vaginal delivery and Apgar score less than 7 in 1 min.
Conclusions
In the case of vaginal delivery in the presence of nuchal cord, as the number of nuchal cord loops increased, so did the number of adverse delivery outcomes. While 3 loops were associated with higher incidence of intrauterine fetal death, intrauterine growth restriction, increased operative vaginal deliveries, and low Apgar scores, 1 loop was not associated with adverse perinatal outcomes.
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References
Clapp JF III, Stepanchak W, Hashimoto K, Ehrenberg H, Lopez B (2003) The natural history of antenatal nuchal cords. Am J Obstet Gynecol 189:488–493
Sheiner E, Abramowicz JS, Levy A, Silberstein T, Mazor M, Hershkovitz R (2006) Nuchal cord is not associated with adverse perinatal outcome. Arch Gynecol Obstet 274:81–83
Akkaya H, Büke B, Pekcan MK et al (2017) Nuchal cord: is it really the silent risk of pregnancy? J Matern Fetal Neonatal Med 30:1730–1733
Sornes T (1995) Umbilical cord encirclements and fetal growth restriction. Obstet Gynecol 86:725–728
Jauniaux E, Ramsay B, Peellaerts C, Scholler Y (1995) Perinatal features of pregnancies complicated by nuchal cord. Am J Perinatol 12:255–258
Abdallah A, Eldorf A, Sallam S et al (2018) Nuchal cord: impact of umbilical artery Doppler indices on intrapartum and neonatal outcomes: a prospective cohort study. J Matern Fetal Neonatal Med. https://doi.org/10.1080/14767058.2018.1463984
Narang Y, Vaid NB, Jain S, Suneja A et al (2014) Is nuchal cord justified as a cause of obstetrician anxiety? Arch Gynecol Obstet 289:795–801
Zuarez-Easton S, Hosary S, Zafran N et al (2018) Peripartum events associated with severe neurologic morbidity and mortality among acidemic neonates. Arch Gynecol Obstet 297:877–933
Walla T, Rothschild MA, Schmolling JC, Banaschak S (2018) Umbilical cord entanglement’s frequency and its impact on the newborn. Int J Legal Med 132:747–752
Weiner E, Fainstein N, Schreiber L, Sagiv R, Bar J, Kovo M (2015) The association between umbilical cord abnormalities and the development of non-reassuring fetal heart rate leading to emergent cesarean deliveries. J Perinatol 35:919–923
Vasa R, Dimitrov R, Patel S (2018) Nuchal cord at delivery and perinatal outcomes: single-center retrospective study, with emphasis on fetal acid-base balance. Pediatr Neonatol 59:439–447
Yarcı Gursoy A, Ozgu B, Tasci Y, Candar T, Erkaya S, Caglar GS (2018) The impact of nuchal cord on umbilical cord blood gas analysis and ischaemia-modified albumin levels in elective C-section. J Obstet Gynaecol 38:1099–1103
Mastrobattista JM, Hollier LM, Yeomans ER et al (2005) Effects of nuchal cord on birthweight and immediate neonatal outcomes. Am J Perinatol 22:83–85
Larson JD, Rayburn WF, Crosby S, Thurnau GR (1995) Multiple nuchal cord entanglements and intrapartum complications. Am J Obstet Gynecol 173:1228–1231
Kong CW, Chan LW, To WW (2015) Neonatal outcome and mode of delivery in the presence of nuchal cord loops: implications on patient counselling and the mode of delivery. Arch Gynecol Obstet 292:283–289. https://doi.org/10.1007/s00404-015-3630-4
Schaffer L, Burkhardt T, Zimmermann R, Kurmanavicius J (2005) Nuchal cords in term and postterm deliveries—do we need to know? Obstet Gynecol 106:23–28
Qin Y, Wang CC, Lau TK, Rogers MS (2000) Color ultrasonography: a useful technique in the identification of nuchal cord during labor. Ultrasound Obstet Gynecol 15:413–417
Jauniaux E, Mawissa C, Peellaerts C, Rodesch F (1992) Nuchal cord in normal third-trimester pregnancy: a color Doppler imaging study. Ultrasound Obstet Gynecol 2:417–419
Peregrine E, O’Brien P, Jauniaux E (2005) Ultrasound detection of nuchal cord prior to labor induction and the risk of cesarean section. Ultrasound Obstet Gynecol 25:160–164
Dollberg S, Haklai Z, Mimouni FB, Gorfein I, Gordon ES (2005) Birth weight standards in the live-born population in Israel. Isr Med Assoc J 7:311–314
Acknowledgements
The authors thank Nava Jelin, MS for data analysis and Faye Schreiber, MS for editing the manuscript. They are employees of Meir Medical Center.
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HS protocol development, data collection, analysis and interpretation. YD data collection, analysis and interpretation, manuscript writing/editing. NA data analysis and interpretation, manuscript writing/editing. OM data analysis and interpretation, manuscript writing/editing. AB data analysis and interpretation, manuscript writing/editing. TB-S protocol development, data analysis and interpretation. All authors provided final approval of the version to be published.
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Schreiber, H., Daykan, Y., Arbib, N. et al. Adverse pregnancy outcomes and multiple nuchal cord loops. Arch Gynecol Obstet 300, 279–283 (2019). https://doi.org/10.1007/s00404-019-05178-w
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DOI: https://doi.org/10.1007/s00404-019-05178-w