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Related Experiment Videos

Nuchal cord type A and type B

J H Collins1

  • 1Pregnancy Institute, Slidell, Louisiana 70461, USA.

American Journal of Obstetrics and Gynecology
|July 1, 1997
PubMed
Summary
This summary is machine-generated.

Distinguishing between nuchal cord type A and type B at delivery is crucial. Type B nuchal cords, occurring in 1 in 50 births, are linked to increased risks of Cesarean section and stillbirth.

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Umbilical cord vulnerability.

American journal of obstetrics and gynecology·2001

Area of Science:

  • Obstetrics and Gynecology
  • Perinatal Medicine
  • Fetal Health

Background:

  • Nuchal cords, where the umbilical cord encircles the fetal neck, are a common occurrence during pregnancy.
  • The pattern of nuchal cord encirclement can vary, potentially influencing perinatal outcomes.
  • Accurate classification of nuchal cord types is essential for appropriate clinical management.

Purpose of the Study:

  • To differentiate between Type A (unlocked) and Type B (locked) nuchal cord patterns.
  • To determine the incidence of Type B nuchal cords in a prospective cohort.
  • To investigate the association between Type B nuchal cords and adverse delivery outcomes.

Main Methods:

  • Prospective review of nuchal cord presentations during delivery.

Related Experiment Videos

  • Classification of nuchal cords into Type A and Type B based on encirclement pattern.
  • Statistical analysis to assess the association between nuchal cord type and delivery complications.

    • Main Results:

    • Type B nuchal cord pattern was observed in approximately 1 in 50 births.
    • A significant association was found between Type B nuchal cords and the need for Cesarean section.
    • Stillbirth was also found to be associated with the presence of a Type B nuchal cord.

    Conclusions:

    • Nuchal cord Type B, characterized by a locked encirclement, presents a higher risk during delivery.
    • Clinical vigilance is warranted for Type B nuchal cords due to their association with Cesarean delivery and stillbirth.
    • Further research may explore specific interventions for managing Type B nuchal cords to improve perinatal outcomes.