Marginal umbilical cord insertion
Updates to Case Attributes
This case features marginal cord insertion, an insertional variant of the umbilical cord, where the cord inserts within 2 cm from the placental margin. It can be associated with velamentous insertion as pregnancy progresses.
Second Second-trimester marginal cord insertion can be associated with increased likelihood for low birth weight, pre-term delivery and adverse obstetrical and neonatal outcomes 1.
The last image features normal fetal tricuspid valve Doppler; E-wave = early ventricular filling and A-wave = atrial ventricular filling. E is smaller than A and the E/A ratio increases during pregnancy toward 1, to be inversed after birth.
-<p>This case features <a href="/articles/marginal-cord-insertion">marginal cord insertion</a>, an insertional variant of the umbilical cord, where the cord inserts within 2 cm from the placental margin. It can be associated with <a title="Velamentous insertion of the cord" href="/articles/velamentous-cord-insertion">velamentous insertion</a> as pregnancy progresses. </p><p>Second-trimester <a title="Marginal cord insertion" href="/articles/marginal-cord-insertion">marginal cord insertion</a> can be associated with increased likelihood for low birth weight, pre-term delivery and adverse obstetrical and neonatal outcomes <sup>1</sup>.</p>- +<p>This case features <a href="/articles/marginal-cord-insertion">marginal cord insertion</a>, an insertional variant of the umbilical cord, where the cord inserts within 2 cm from the placental margin. It can be associated with <a href="/articles/velamentous-cord-insertion">velamentous insertion</a> as pregnancy progresses. Second-trimester <a href="/articles/marginal-cord-insertion">marginal cord insertion</a> can be associated with increased likelihood for low birth weight, pre-term delivery and adverse obstetrical and neonatal outcomes <sup>1</sup>.</p><p>The last image features normal fetal tricuspid valve Doppler; E-wave = early ventricular filling and A-wave = atrial ventricular filling. E is smaller than A and the E/A ratio increases during pregnancy toward 1, to be inversed after birth.</p>
References changed:
- 1. Allaf MB, Andrikopoulou M, Crnosija N, et al. Second trimester marginal cord insertion is associated with adverse perinatal outcomes. (2018) 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. <a href="https://doi.org/10.1080/14767058.2018.1453798">doi:10.1080/14767058.2018.1453798</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/29544383">Pubmed</a> <span class="ref_v4"></span>
Updates to Study Attributes
Right lateral placental of grade I maturation, located at the upper uterine segment, with right anterior and posterior parts location.
The umbilical cord shows normal 3-vessel appearance, with marginal insertion at its inferior pole of the posterior part. Normal umbilical arteryand middle cerebral arteries Doppler for gestational age.
The last image features normal fetal tricuspid valve Doppler; E-wave = early ventricular filling and A-wave = atrial ventricular filling.