Umbilical artery blood flows among pregnancies with single umbilical artery: a prospective case-control study.

Abstract

OBJECTIVES:

To evaluate peak systolic velocity (PSV) in the umbilical artery (UA) among patients with single umbilical artery (SUA) as compared with patients with three vessel cords.

METHODS:

A prospective case-control study was performed. UA blood flow velocimetry was obtained from fetuses with SUA and from a control group with three vessel cord. PSV and pulsatility index (PI) were measured. Patients' characteristics were compared for statistical differences and a linear regression model was constructed for the different groups.

RESULTS:

UA Doppler velocimetry measurements were obtained from 29 patients with SUA and from 29 controls matched for gestational age. The differences between UA PI with and without SUA were significant (F = 3.471; p = 0.0379) showing a lower PI in the SUA group. However, no significant statistical difference was found in PSV between these two groups (F = 0.149; p = 0.86).

CONCLUSIONS:

While the impedance in the UA of patients with a SUA was lower compared with patients with a normal umbilical cord, the PSV did not differ.

• Authors: Joel Baron, Adi Y Weintraub, Yael Sciaky, Salvatore A Mastrolia, Efrat Speigel, Reli Hershkovitz
• Journal: The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians (J Matern Fetal Neonatal Med) Vol. 28 Issue 15 Pg. 1803-5 ( 2015) ISSN: 1476-4954 [Electronic] England
• PMID: 25262995 (Publication Type: Journal Article)

Topics

• Adult
• Blood Flow Velocity
• Case-Control Studies
• Female
• Fetal Weight
• Humans
• Infant, Newborn
• Pregnancy
• Single Umbilical Artery (physiopathology)
• Ultrasonography, Doppler
• Ultrasonography, Prenatal
• Umbilical Arteries (physiology, physiopathology)
• Young Adult