Fetal umbilical cord around the neck is the news that prenatal expectant mothers are very afraid to hear. People always associate the umbilical cord around the neck with stillbirth. In fact, umbilical cord around the neck is not absolutely dangerous, but it is not absolutely dangerous. Before the third trimester, expectant mothers must pay close attention to the baby's fetal movement and find the phenomenon of umbilical cord around the neck in time. Hard to prevent? But not necessarily dangerous.
When most people hear "fetal umbilical cord around the neck", they always think "Ah! It's too dangerous ",even equivalent to" stillbirth "! In fact, prospective fathers and expectant mothers should relax. Umbilical cord around the neck is not as dangerous as imagined. Most fetuses can land safely!
It is often reported that the umbilical cord around the neck comes from celebrities, which makes pregnant mothers nervous. Jiang Qixin, director of obstetrics at Keelung Chang Gung Hospital, said, "In many cases, the umbilical cord around the neck was found during childbirth, but I didn't know it before delivery. Therefore, prospective fathers and expectant mothers need not be overly nervous. Even if this problem is found, it does not mean' caesarean section is about to be delivered'. " Dr. Jiang Qixin explained that the umbilical cord around the fetal neck is not like what adults think, "a rope is wrapped around the neck and gradually suffocates." Because the fetus does not breathe through the trachea, but relies on the blood vessels of the umbilical cord to transport oxygen and carbon dioxide. Pregnant mommy must not be frightened by this imaginary picture and affect her mood.
Star Lin Jiaxin
Lin Jiaxin, who went to Canada to give birth, was interviewed after giving birth. She said that at first, she wanted to give birth naturally, but she found her daughter's umbilical cord wrapped around her neck, which caused her heartbeat to continue to weaken. Finally, it was temporarily changed to caesarean section before the baby was born. As a result, she was born safely.
Star Huang
In an interview before labor, I said that the baby's umbilical cord was wrapped around the neck, and the fetal position was still uncertain. However, I still want to have a natural birth. As a result, she was born safely.
Writer Xiao Tong
According to the report at that time, Xiao Tong's due date was originally in July of 16. Originally, she wanted to have a caesarean section, but the doctor advised her to give birth naturally, so that even after the expected date of delivery, she remained indifferent. However, on the morning of 19, it seems that mother and daughter are connected. She suddenly became alert to the stillness of the fetus, which scared her and her husband to go to the hospital. Unexpectedly, the doctor announced that the fetus was unfortunately entangled in the umbilical cord and had no heartbeat ... The result was stillborn.
Understand umbilical cord physiology
Before understanding the umbilical cord around the neck, Dr. Jiang Qixin explained the physiological characteristics of the umbilical cord: the function of the umbilical cord: the umbilical cord is a part of the placental tissue, consisting of two umbilical arteries and one umbilical vein, arranged in a spiral shape. The fetus is closely connected with the mother's placenta through the umbilical cord-the umbilical artery sends the carbon dioxide and metabolites produced by the fetus back to the mother, while the umbilical vein sends the oxygen and nutrition of the pregnant mother to the fetus.
? Umbilical cord development: Under normal circumstances, the embryonic form of umbilical cord has been developed in the fourth week of pregnancy. At first, it was just a small straight tube, but with the development of fetal and motor nerve functions, it gradually wound into a spiral arrangement. Dr. Jiang Qixin said that before 2 1 ~ 24 weeks of pregnancy, less than 10% of the fetus had the problem of umbilical cord around the neck, but with the increase of weeks, about 30% of the fetus had this problem by 40 weeks.
? Umbilical cord length: Dr. Jiang Qixin said that the length of human fetal umbilical cord is about 50 ~ 60 cm. But under the control of chromosomes, it is sometimes too long or too short. When the length is greater than 70cm, it is "too long" and when it is less than 30cm, it is "too short". Dr. Jiang Qixin pointed out that the umbilical cord is too short, and the fetus is prone to short stature, slow growth and fetal distress; If the umbilical cord is too long, it may be related to fetal activity. Because of the strong activity, the umbilical cord is slowly elongated. Inspection method and diagnostic rate Umbilical cord around neck ultrasound can be correctly diagnosed, and the diagnostic rate of 2D ultrasound is 30%. Dr. Jiang Qixin pointed out that the diagnostic rate is nearly 80% if color Doppler ultrasound is supplemented, and it is nearly 100% if 3D and 4D ultrasound are used.
Why is this happening?
Dr. Jiang Qixin pointed out that the following kinds are more likely to lead to umbilical cord around the neck: 1. Strong fetal movement, especially extremely severe fetal movement. 2. Umbilical cord is too long when amniotic fluid is excessive. 3. Multiple births. 4. In the previous production, there was an umbilical cord around the neck.
He said that there are more opportunities to go around; Two laps are missing; There are fewer opportunities to do three turns, but Dr. Jiang Qixin once encountered a case of winding five turns in clinic, mainly because the umbilical cord is too long and winds across the whole body from the foot.
Not just in circles? Tie a knot
If the fetal movement is too frequent, sometimes the umbilical cord will knot, which is called "true knot". Dr. Jiang Qixin said: "According to statistics, the incidence of true knot accounts for about 1% of the total output." If this happens, the probability of danger is not low, and there may be problems such as venous blood retention, venous wall thrombosis and fetal hypoxia, which may lead to fetal death or nervous system diseases.
It always happens unconsciously.
Dr. Jiang Qixin said that umbilical cord around the neck is actually a common phenomenon during pregnancy, but it is also easy to switch between "yes" and "no". That is to say, even if the fetus is found to have the problem of umbilical cord around the neck after this ultrasound examination, the problem may not exist by the next examination. He explained that this is because the fetus has the ability to move freely and float in amniotic fluid. Occasionally, the hanging umbilical cord will accidentally bypass the sides of the neck. At first, it may just hang like a scarf, but if it is turned over again, it may form a loop knot of more than 360 degrees, which is the so-called "umbilical cord around the neck". Umbilical cord is not only wrapped around the neck, but also around other parts of the body, such as upper limbs, lower limbs and shoulders. However, it is possible that the umbilical cord around the neck will be loose if the fetus changes its posture slightly; On the contrary, it may keep turning and turning, so that the umbilical cord can be wound again.
I believe that expectant mothers will think, "Is there any way to prevent it?" Dr. Jiang Qixin said that because it happened unwittingly, there was no way to prevent it first.
What if there is this problem?
When there is a problem with the umbilical cord around the neck, it is not that the fetus cannot absorb air, but that if the umbilical cord is severely compressed, it will gradually be unable to smoothly transport oxygen and nutrients between the placenta and the fetus. Dr. Jiang Qixin said that if there is umbilical cord around the neck, it is necessary to confirm whether the fetus is affected. As long as the fetal movement is normal, the prospective mommy doesn't need to be particularly nervous! He said that if the number of fetal movements is reduced and the heartbeat is slow through the fetal heart monitor, necessary actions must be taken, such as caesarean section. If the fetus is less than 34 weeks old, it is bound to face various problems of premature infants after birth; When the fetus is over 34 weeks old, it is less worrying.
Even if ultrasound can be detected in advance, but the fetus continues to move, it can not prevent the occurrence of umbilical cord around the neck. Dr. Jiang Qixin reminded that pregnant mommy should receive regular prenatal examination and pay attention to fetal movement at any time.
It is important to pay attention to fetal movement.
Fetal movement not only makes pregnant mommy really feel the existence of little life, but also is an important indicator to observe the fetal condition. Dr. Jiang Qixin said that the usual cycle of the fetus is: sleep for one to two hours and exercise for three or four hours. Taking the 37th week of pregnancy as an example, the appropriate fetal movements are as follows: within eight hours of a day, I feel at least 10 fetal movements.
? Two hours after dinner: at least two fetal movements in half an hour.
He suggested that it is best to take a period of time in the morning, noon and evening to feel the fetal movement. If you still don't feel anything for more than two hours, you might as well do an action, such as shaking your stomach a little, and let the fetus respond to you.
If the fetal movement is significantly different from the previous day, Dr. Jiang Qixin said that he would rather go to the hospital for examination at this time to determine the fetal situation. He said that if the fetus really has a condition, he will also struggle hard. As long as we can find it early, we can reduce the chance of regret. Regarding umbilical cord accidents, it should also be noted that apart from umbilical cord around the neck, there are also common umbilical cord accidents: