umbilical cord around neck
Introduction
Introduction Umbilical cord entanglement is one of the most common types of umbilical cord. It is the most common type of umbilical cord abnormality. Another type that does not completely surround the neck is called the umbilical cord neck. Secondly, the wounded trunk and limbs are often referred to by the expectant mothers as the umbilical cord around the neck or the umbilical cord. The incidence of neck in the umbilical cord wrapped baby is 20% to 25%, and the incidence of umbilical cord around the neck is 89%, while the incidence of umbilical cord around the neck is 11%, and the umbilical cord around the neck for 3 weeks or more is rare. The umbilical cord wrapped baby's torso and limbs are relatively rare. The umbilical cord around the neck is a common condition during fetal delivery. It is generally believed that this is related to the umbilical cord being too long and the fetal movement frequency. The length of the umbilical cord is longer than that of the umbilical cord. Usually, the blood vessel curl is spiral, and the umbilical cord itself is surrounded by the gel, which has a certain elasticity. Therefore, the number of weeks around the neck is not directly related to the survival of the fetus. Only after the labor, as the contraction tightens, the lowered fetal head will tighten the umbilical cord, which will cause the umbilical cord to be too short, so that it can not be delivered smoothly. At this time, the more the number of winding cycles, the more dangerous. B-ultrasound can be used to see if the fetus has a umbilical cord around the neck before birth, and sometimes the umbilical cord murmur can be heard in the abdomen. Therefore, it is more necessary to listen to the fetal heart and pay attention to fetal movement in order to take timely measures.
Cause
Cause
The baby is not honest in the mother's body. It tumbling in the uterus where space is not very large, and it is often active. Each baby has different characteristics, some of the baby's movements are relatively gentle, and some of the baby's movements are larger, especially for sports. He plays and plays in his mother's womb, moves his arms, stretches his legs, and turns a circle. At this time, umbilical cord entanglement may occur.
The umbilical cord around the neck is a high-risk pregnancy, which can cause fetal distress in the baby at any time. If the umbilical cord has multiple entanglements at the end of pregnancy, it is very dangerous for the baby. The tighter entanglement can affect the passage of umbilical cord blood flow, thus affecting the metabolism of oxygen and carbon dioxide in the baby, and the fetal heart rate is slowed down. In severe cases, the baby may have hypoxia, or even the baby will die.
The umbilical cord is entangled, and the result is similar to 'hanging'. The effect on the fetus is related to the number of weeks of entanglement and the degree of tightness, the length of the umbilical cord, and the amount of amniotic fluid. It is also related to whether it is labor or not. After delivery, the fetal head is delivered downwards, which will cause the umbilical cord that was originally entangled to be gradually tightened.
In general, a fetus that is wrapped around the umbilical cord for one week or the neck of the umbilical cord, because of the umbilical cord entanglement and compression, is not clinically symptomatic. This kind of entanglement is not dangerous to the mother and child, and the mother can still pass the vagina to smooth it. childbirth. Even if the umbilical cord is around the neck, because the activity of the fetal head is small, as long as the umbilical cord is not tightened, it usually does not harm the health of the fetus. During pregnancy, if umbilical cord entanglement is found, pregnant women do not need to worry too much as long as the fetus continues to be active.
However, fetuses with a large number of entanglements and a large degree of compression may cause the relative umbilical cord to be too short due to entanglement of the umbilical cord. If the umbilical cord is too tight, it will affect the blood flow of the umbilical cord. First, it will affect the metabolism of fetal oxygen and carbon dioxide, and the fetus will appear. The fetal heart is slowed down; in severe cases, fetal hypoxia or even fetal death may occur, and the treatment is more passive and tricky.
Examine
an examination
Related inspection
Obstetric examination Obstetrics B-ultrasound
B-ultrasound can be used to see if the fetus has a umbilical cord around the neck before birth, and sometimes the umbilical cord murmur can be heard in the abdomen. Therefore, it is more necessary to listen to the fetal heart and pay attention to fetal movement in order to take timely measures.
Ultrasound has become an important means of prenatal examination. Ultrasound can see whether the fetus has umbilical cord around the neck, the number of weeks of winding and the tightness. On the longitudinal section of the fetal head and neck, there is a "V"-shaped indentation behind the neck of the fetus, indicating that the umbilical cord is around the neck, "W"-shaped indentation, indicating that the umbilical cord is around the neck for two weeks, and the wavy indentation represents the umbilical cord winding. Neck for more than two weeks.
At home, you can use the home fetal heart rate instrument (Doppler fetal heart rate) twice a day, check the fetal condition regularly, and find problems in time.
Diagnosis
Differential diagnosis
Umbilical cord entanglement is one of the most common types of umbilical cord. It is the most common type of umbilical cord abnormality. Another type that does not completely surround the neck is called the umbilical cord neck. Secondly, the wounded trunk and limbs are often referred to by the expectant mothers as the umbilical cord around the neck or the umbilical cord. When the umbilical cord is found to be entangled, if the fetus has no other abnormalities, the pregnant woman does not have to panic and does not have to undergo immediate delivery. When the umbilical cord entanglement causes fetal intrauterine hypoxia, the fetal movement is reduced. The doctor will monitor the fetal condition through the electronic fetal heart rate monitor to see if there is an abnormal pattern, and according to the situation of the pregnant woman at that time. If the pregnant woman is not yet in labor, the doctor usually advises the pregnant woman to carry out the surgical delivery to avoid the risk; if the doctor finds the umbilical cord entangled during the labor, it usually chooses surgery or the use of forceps to assist the child. Of course, there are quite a few pregnant women who have umbilical cord entanglement and no fetal hypoxia. They can naturally give birth just like normal pregnant women. When the baby is delivered, the umbilical cord is entangled, and the doctor will immediately release it through the head or shoulder; if the umbilical cord is pulled too tightly, the umbilical cord will be cut by the clamp immediately.
B-ultrasound can be used to see if the fetus has a umbilical cord around the neck before birth, and sometimes the umbilical cord murmur can be heard in the abdomen. Therefore, it is more necessary to listen to the fetal heart and pay attention to fetal movement in order to take timely measures.
