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Clinical and Experimental Obstetrics & Gynecology  2017, Vol. 44 Issue (2): 216-219    DOI: 10.12891/ceog3338.2017
Original Research Previous articles | Next articles
Short umbilical cord length: reflective of adverse pregnancy outcomes
Y. Yamamoto1, *(), S. Aoki1, M.S. Oba2, K. Seki1, F. Hirahara3
1 Perinatal Center for Maternity and Neonates, Yokohama City University Medical Center, Yokohama City, Japan
2 Department of Medical Statistics, Faculty of Medicine, Toho University, Tokyo, Japan
3 Department of Obstetrics and Gynecology, Yokohama City University Hospital, Yokohama City, Japan
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Abstract  
A short umbilical cord is associated with adverse pregnancy outcomes. However, there is no universally accepted definition of a short cord. Objective: This study aimed to determine the umbilical cord length showing the highest correlation with adverse pregnancy outcomes. Materials and Methods: The authors retrospectively analyzed the clinical data of women who attempted vaginal birth in the present institution. Umbilical cord lengths were categorized into three groups: less than the first percentile, from the first percentile to less than the tenth percentile, and others. Maternal and neonatal characteristics previously suggested to affect cord length were evaluated. The main outcome was the rate of cesarean delivery. The authors also evaluated the frequency of operative vaginal delivery, small-forgestational-age (SGA) births, neonatal intensive care unit (NICU) admission, umbilical artery pH < 7.1, and abnormal bleeding during delivery. Results: Cord lengths of 35 and 45 cm corresponded to the first and tenth percentiles, respectively. A short cord was an indicator of unplanned cesarean delivery and small-for-gestational-age births. Conclusion: An umbilical cord length of ≤ 45 cm is a clinically useful indicator of adverse pregnancy outcomes.
Key words:  Umbilical cord      Pregnancy outcome      Cesarean delivery rate     
Published:  10 April 2017     
*Corresponding Author(s):  Y. YAMAMOTO     E-mail:  yurizgrill@gmail.com

Cite this article: 

Y. Yamamoto, S. Aoki, M.S. Oba, K. Seki, F. Hirahara. Short umbilical cord length: reflective of adverse pregnancy outcomes. Clinical and Experimental Obstetrics & Gynecology, 2017, 44(2): 216-219.

URL: 

https://ceog.imrpress.com/EN/10.12891/ceog3338.2017     OR     https://ceog.imrpress.com/EN/Y2017/V44/I2/216

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