Umbilical Cord Coiling
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Publication date
2018-01-01
Authors
Nikkels, Peter G J
Cesar Peres, Luiz
Editors
Khong, T. Yee
Mooney, Eoghen E.
Nikkels, Peter G. J.
Morgan, Terry K.
Gordijn, Sanne J.
Advisors
Supervisors
Document Type
Part of book
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taverne
Abstract
The umbilical cord has a characteristic coiling pattern with both arteries coiling around the umbilical vein. This architecture is intrinsic to the cord and cannot be undone by unwinding in the opposite direction, unlike torsion. The number of coils divided by the length of the cord is the umbilical coiling index (UCI). The coiling index is preferably determined using fresh unfixed placentas. Abnormal cord coiling, defined as a hypo-coiled (UCI <10th centile) or hyper-coiled (>90th centile), is associated with fetal demise, fetal intolerance to labour, fetal growth restriction, chorioamnionitis and fetal vascular malperfusion.
Keywords
Umbilical cord coiling, Hyper-coiling, Hyp-coiling, Fetal vascular malperfusion, Perinatal mortality, Intrauterine fetal death, Taverne, General Medicine, General Nursing
Citation
Nikkels, P & Cesar Peres, L 2018, Umbilical Cord Coiling. in T Y Khong, E E Mooney, P G J Nikkels, T K Morgan & S J Gordijn (eds), Pathology of the Placenta : A Practical Guide. 1st edn, Springer, Cham, pp. 317-321. https://doi.org/10.1007/978-3-319-97214-5_47