Will there be changes in the fetal heart rate if the umbilical cord is wrapped around the neck?

Written by Du Rui Xia

Obstetrics

Updated on February 21, 2025

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When the umbilical cord is wrapped around the neck, there are some situations where changes in the fetal heart rate may occur. The umbilical cord is mostly wrapped around the neck just once, which generally does not affect the growth and development of the fetus, nor does it significantly change the fetal heart rate. The impact on the fetal heart rate in the case of nuchal cord depends on how tight the cord is wrapped around the neck, the number of loops, and the length of the umbilical cord, among other factors. If the umbilical cord is tightly wrapped and has multiple loops, or if it is compressed due to contractions of the uterus, it can obstruct fetal blood circulation and lead to hypoxia in the fetus, thereby affecting the fetal heart rate.

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Written by Liu Wen Li

Obstetrics

59sec

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What should I do if the umbilical cord is wrapped around the neck?

Umbilical cord entanglement around the neck is a common complication for pregnant women. It mostly occurs with the umbilical cord wrapped around the neck once, accounting for about 20% of all deliveries, which means that 1 in 5 pregnant women will experience this condition. The main danger of umbilical cord entanglement is that if the cord is wrapped tightly or is short, it can pull on the cord during pregnancy or delivery, causing the blood vessels within the cord to constrict. This constriction can decrease the fetal blood circulation, leading to fetal distress, which is characterized by changes in fetal heart rate and fetal movement. Therefore, if there is umbilical cord entanglement, it is important to enhance monitoring during pregnancy and delivery. If fetal distress or fetal hypoxia occurs, a cesarean section should be performed promptly to terminate the pregnancy.

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Written by Du Rui Xia

Obstetrics

39sec

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Can nuchal cord be corrected by lying prone?

Nuchal cord refers to a condition during pregnancy where the umbilical cord wraps around the fetus's neck or abdomen due to the baby's continuous movements and changes in position. Lying prone cannot correct a nuchal cord because the fetus can move freely within the womb. In some cases, the baby may even resolve the issue through its movements, so there is no need for excessive worry. It is only necessary to visit the hospital regularly for prenatal check-ups, follow the doctor's advice, and monitor the fetal heart rate. Generally, this does not cause any adverse effects.

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Written by Zhang Yin Xing

Obstetrics

58sec

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Is moxibustion useful for breech presentation and nuchal cord?

Fetal breech presentation and nuchal cord can be effectively addressed with moxibustion. Breech positions are common in early pregnancy but typically resolve to a head-first position by 32 weeks and become relatively stable. Higher incidences of breech positions are noted in cases of fetal abnormalities, twin pregnancies, abnormal amounts of amniotic fluid, uterine abnormalities, and narrow pelvis. If a breech position is still present after 32 weeks, moxibustion treatment can be considered. Moxibustion is applied at the Zhiyin acupoint (located 0.1 inches beside the nail corner on the outer side of the little toe) and is generally recommended once daily for 15 to 30 minutes, with one week constituting a treatment course. Afterward, the improvement in the fetal position can be evaluated. The purpose of using moxibustion is to promote fetal activity, which may help resolve nuchal cord entanglement during fetal movements.

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Written by Zhang Yin Xing

Obstetrics

1min 24sec

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How to prevent umbilical cord entanglement in late pregnancy

There are no effective prevention methods for nuchal cord, which is the most common form of umbilical cord entanglement where the cord wraps around the fetus's neck, limbs, or trunk. Nuchal cord occurs in 90% of these cases, frequently involving the cord wrapping around the neck once. This phenomenon can be observed in 20% of deliveries and is associated with factors such as an overly long umbilical cord, a small fetus, excessive amniotic fluid, and frequent fetal movements. An excessively long umbilical cord is mostly a physiological occurrence since the cord floats in the amniotic fluid and its actual length cannot be accurately measured, with no effective methods to prevent its occurrence. Excessive amniotic fluid and a small fetus are linked to certain pregnancy complications, such as diabetes-induced polyhydramnios and restricted fetal growth. Actively controlling blood sugar during pregnancy can prevent such issues. Frequent fetal movements are physiological for some pregnant women. Women who experience more frequent fetal movements throughout pregnancy are likely to encounter nuchal cord. Clinically, nuchal cord does not require special management unless it leads to obstructions in fetal descent, fetal distress, or variations in fetal heart rate. It does not impact delivery or fetal development.

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Written by Du Rui Xia

Obstetrics

44sec

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What will the fetal movement be like if the umbilical cord is wrapped around the neck?

Generally, when the umbilical cord is wrapped around the neck, it often does not affect the fetal movement or fetal heart rate changes. It is quite common for the cord to be wrapped around once, and if the wrapping is loose and does not affect the blood supply from the placenta, fetal movement will not change. However, if the cord is tightly wrapped multiple times, it can affect the blood supply of the umbilical cord and impact the fetal blood circulation, leading to frequent fetal movements. Therefore, pregnant women should learn to count fetal movements themselves to understand if the fetus is experiencing hypoxia in the womb.