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. 2008 Jun;34(3):314-7.
doi: 10.1111/j.1447-0756.2007.00695.x.

Does the nuchal cord persist? An ultrasound and color-Doppler-based prospective study

Neena Lal  1 , Deepika Deka, Suneeta Mittal
Affiliations

Does the nuchal cord persist? An ultrasound and color-Doppler-based prospective study

Neena Lal et al. J Obstet Gynaecol Res. 2008 Jun.

Abstract

Aim: To study the persistence of nuchal cord by ultrasound at various periods of gestation.

Methods: Ultrasound was done on 200 consecutive pregnant women and nuchal cord was documented at 18-20, 30-32 and 36-38 weeks' gestation.

Results: The incidence of nuchal cord was 6% at 18-20 weeks, 7.5% at 30-32 weeks, 26.5% at 36-38 weeks and 28% at birth. The persistence of nuchal cord was 8.3% from 18 to 20 to 30-32 weeks, 26.6% from 30-32 to 36-38 weeks and 84.9% from 36-38 weeks to delivery. Using the Friedman test, the change in the presence of nuchal cord was significant (P < 0.001).

Conclusions: Nuchal cord keeps appearing and disappearing over time. Its

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