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Related Experiment Videos

Velamentous cord insertion and atypical variable decelerations with no accelerations.

J Hasegawa1, R Matsuoka, K Ichizuka

  • 1Department of Obstetrics and Gynecology, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8666, Japan. hasejun@oak.dti.ne.jp

International Journal of Gynaecology and Obstetrics: the Official Organ of the International Federation of Gynaecology and Obstetrics
|May 24, 2005
PubMed
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Women with velamentous cord insertion (VCI) experienced more variable decelerations with no accelerations (VDNA) during labor. This finding highlights a significant association between VCI and abnormal fetal heart rate patterns.

Area of Science:

  • Obstetrics and Gynecology
  • Fetal Medicine
  • Perinatal Research

Background:

  • Velamentous cord insertion (VCI) is a condition where the umbilical cord inserts into the fetal membranes, potentially impacting fetal well-being.
  • Intrapartum fetal heart rate (FHR) monitoring is crucial for assessing fetal status during labor.

Purpose of the Study:

  • To investigate the characteristics of intrapartum fetal heart rate (FHR) patterns in pregnancies complicated by velamentous cord insertion (VCI).
  • To determine if VCI is associated with specific FHR abnormalities during labor.

Main Methods:

  • A case-control study involving 24 women with VCI and 1460 women in total for cord insertion determination.
  • Matched controls (10 per case) with normal pregnancies were selected for FHR pattern analysis during labor.

Related Experiment Videos

  • Antenatal ultrasonography and postnatal examinations were used to determine cord insertion site.

    • Main Results:

    • Women with VCI showed a significantly higher incidence of variable decelerations with no accelerations (VDNA) in both the first and second stages of labor compared to controls.
    • The adjusted odds ratio for VDNA in women with VCI was 3.83 (P = 0.005).
    • A longer length of aberrant vessels in VCI cases with VDNA was associated with increased odds (OR = 1.38, P = 0.026).

    Conclusions:

    • Pregnancies complicated with velamentous cord insertion are associated with an increased rate of variable decelerations with no accelerations.
    • These findings suggest a link between VCI and adverse intrapartum fetal heart rate patterns, warranting further attention.