The International Journal of Romanian Society of Endocrinology / Registered in 1938

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April - June 2018, Volume 14, Issue 2
Letter to the Editor

Shao J, Wu X, Liu X, Qi J, Qi Z

The Correlation between Neck Circumference and Umbilical Artery Blood Flow in Physiologic Pregnancies

Acta Endo (Buc) 2018, 14 (2): 268-271
doi: 10.4183/aeb.2018.268

Objective. To study the correlation between neck circumference(NC) and umbilical artery blood flow in physiologic pregnancies. Methods. One hundred and one healthy pregnant woman in the third trimester were enrolled. Anthropometric measurements and ultrasonic testing were done. Results. The women with NC ≥34.7cm had a more elevated umbilical artery pulsatility index(PI) and systolic/diastolic ratio (S/D) than the women with NC <34.7cm (P<0.01). NC were positively correlated with PI(r=0.224,P=0.024) and S/D ratio(r=0.415,P=0.0001). In multivariate analysis, NC was independently associated with PI (β=0.026, P=0.016) and S/D ratio (β=0.132, P=0.0001). Conclusions. Obesity has an adverse impact on feto-placetal vessels, and NC was superior to body mass index.

Keywords: pregnancy, umbilical Doppler velocimetry, neck circumference

Correspondence: Jun-tao Shao, The First Hospital of Qinhuangdao, Dept. of Ultrasound, No.258 Wenhua Road, Qinhuangdao, 066000, China, E-mail: