Area of Wharton's jelly as an estimate of the thickness of the umbilical cord and its relationship with estimated fetal weight

Reproductive Health

Jose V Costa¹  Emilio F Marussi¹  Maria L Costa¹  Fernanda G Surita¹  Jose G Cecatti¹  Cristiane Barbieri¹ 

[1] Department of Obstetrics and Gynecology, School of Medical Sciences, Universidade Estadual de Campinas - UNICAMP, Campinas, São Paulo, Brazil

关键词: Wharton's jelly;    umbilical vessels;    umbilical cord;    pregnancy;    ultrasonography;   

Others  :  821737
DOI  :  10.1186/1742-4755-8-32

 received in 2011-10-21, accepted in 2011-11-04,  发布年份 2011

【 摘 要 】

Background

To build a reference curve for the area of Wharton's jelly (WJ) in low-risk pregnancies from 13 to 40 weeks and to assess its relationship with estimated fetal weight (EFW).

Methods

2,189 low-risk pregnancies had the area of WJ estimated by ultrasound and the 10^th, 50^th and 90^th percentiles calculated using a third-degree polynomial regression procedure. EFW by ultrasound was correlated with the measurement of the area of WJ.

Results

The area of WJ increased according to gestational age (R² = 0.64), stabilizing from the 32^nd week onwards. There was a significant linear correlation between area of WJ and EFW up to 26 weeks (R = 0.782) and after that 5t remained practically constant (R = 0.047).

Conclusion

The area of WJ increases according to gestational age, with a trend to stabilize at around 32 weeks of gestation. It is also linearly correlated with EFW only up to 26 weeks of gestation.

【 授权许可】

   
2011 Barbieri et al; licensee BioMed Central Ltd.

【 图 表 】

Figure 1.

Figure 2.

Figure 3.

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