Hello everyone, I am a tomato mother who practices lifelong learning!
What is the most worrying thing for pregnant mothers after pregnancy? I think most people's answer is: keep your baby healthy! It is true that life is magical, but there are also many uncertainties, we do not know whether the baby is developing well in the mother's belly, so now pregnant mothers are paying attention to obstetric examination.
But the obstetric examination can not be 100% sure that the child we give birth to is not deformed and completely healthy! Not afraid of ten thousand, just in case, sometimes the family encounters this situation, it is really good grief.
01
One day, as soon as I walked into the office, I heard my colleagues discussing pregnancy tests and having babies. After asking the truth, I learned that it was the cousin of my colleague Xiao Li, because of the obstetric examination.
Little Li cousin also attaches great importance to pregnancy tests after pregnancy, no matter how busy the work is, she will take time to go to the hospital for regular obstetric examinations. The results of the obstetric examination are also "green light pass", which makes Xiao Li's cousin's whole family very happy. There are still 5 days before the due date, Xiao Li's cousin had an early seizure, and Shun gave birth to a 5-pound female treasure.
What shocked the whole family was that the baby's lips had congenital rabbit lip deformity, although it was not too serious, and the doctor also guaranteed that it could be repaired through surgery in the later stage. But Xiao Li's cousin can't accept it, obviously the results of the obstetric examination are normal all the way, why does the child have deformities? Little Li's cousin asked the hospital to give an explanation.
The hospital's explanation is that as a means of clinical orthodontic clearance, the accuracy of the examination is related to other objective factors such as gestational age. According to Xiao Li's cousin's obstetric examination records, her four-dimensional color ultrasound examination time is relatively early, which to a certain extent also caused errors in the results of the obstetric examination.
Referring to this matter, Xiao Li's cousin also remembered that because she was in charge of a work project at that time, the work task was heavier, and the working hours and the maternity examination time were somewhat conflicting, so she advanced the time appointment of the four color supers by one week.
At that time, the staff who did the four-dimensional color ultrasound kindly reminded her that the pregnancy was too early, which would affect the accuracy of the test results. But because Xiao Li's cousin herself is a first-time mother, she has no experience and has not attracted enough attention, and after getting the results of the obstetric examination, everything is normal, she has not paid attention to it anymore.
"Does gestational age also affect the results of the orthodontic test?" After listening to the narration of colleague Xiao Li, the married and childless female compatriots in the office nervously tightened their strings and asked this second-born mother for advice.
"Yes, the most suitable time for the most pregnant women to have a 4D ultrasound examination is 22-24 weeks pregnant."
02
Why are the test results most accurate at 22-24 weeks' gestation?
Because the development indicators of the fetus in this period are close to maturity, the fetus is moderately sized, the range of motion is wider, and the amniotic fluid background is also better, the ultrasound probe can clearly observe the developmental dynamics of the fetus.
If the large-displacement malformation examination is performed too early, some structural development of the fetus may not be perfect, and some parts are difficult to observe clearly. Beyond this gestational cycle is not good, the fetus is too large, and the receptor site effect cannot be fully observed.
Of course, we cannot "over-deify" the four-dimensional color ultrasound's deorganization examination. Under the modern medical technology and means, any examination can not achieve 100% accuracy, and there is also a "possibility of omission" in the four-dimensional color ultrasound.
According to relevant statistics, the current four-dimensional color ultrasound can only reach about 70%, such as: hearing impairment, visual impairment and other problems, can not be found through the orthodontic examination.
All ultrasound examinations during pregnancy can only reflect the current state of the fetus. Therefore, the orthodontic examination during pregnancy begins to intervene from the first trimester.
According to the development of the fetus, under the arrangement of the attending doctor, throughout the pregnancy, the pregnant mother may also have to undergo these teratology tests in addition to the four-dimensional color ultrasound:
First: NT check
This is the first teratology examination received by pregnant mothers, and the time of NT examination is preferably between 11-13 weeks of pregnancy, and the thickness of the skin folds on the back of the neck of the fetus is measured by ultrasound B to determine whether the fetus is likely to be deformed. The national regulation indicator NT widening is greater than 3.01 mm, which means that the fetus may have developmental abnormalities.
Of course, because the NT is done earlier, there is a possibility of absorption during fetal development. I also have many examples around me, when the NT value exceeded the standard at that time, and the later orthodontic examination was completely normal.
However, if the NT examination exceeds the critical value, the pregnant mother cannot take it lightly, follow the doctor's advice, and check it in combination with other clinical examination methods to rule out the possibility of congenital developmental diseases of the fetus and ensure eugenics.
Second: Down's screening/noninvasive DNA
Down screening, which is mainly to determine whether the fetus has The possibility of Having Down syndrome. This kind of examination method is very small to the mother and baby, and the examination method is also very simple, but it should be noted that the examination time, early or delayed, may affect the accuracy of the Results of tang screening.
Non-invasive DNA, the same is to take the mother's venous blood, extract the mother's peripheral plasma of the fetus free DNA for sequencing, through the biological information analysis of the test results, to rule out the possibility of the fetus suffering from three major chromosomal diseases.
Relatively speaking, the accuracy of non-invasive DNA test results is higher than that of Down screening, so I skipped Down screening when I was pregnant and obstetrically tested, and directly chose non-invasive DNA.
The advantage of this is that it can be basically put in place in one step, avoiding the need to accept noninvasive DNA again for further judgment because of down screening abnormalities.
Third, amniotic fluid puncture
Amniocentesis is recommended at the age of 35, and amniocentesis is also recommended for high risk of down screening in the front. Amniotic fluid is checked for chromosomes, DNA, etc. in fetal cells to rule out whether there are developmental malformations in the fetus. In addition, some older pregnant women or pregnant women with their own family genetic history also need to obtain more accurate results through amniocentesis.
Finally, it is important to remind pregnant mothers that they should not directly ignore the routine pregnancy test because the results of a certain orthodontic examination show normal.
In the process of pregnancy in October, there are many unknown variables in fetal development, such as: fetal umbilical cord around the neck, etc., which need to be detected in time under clinical ultrasound observation. To ensure the health and safety of the fetus, honestly and regularly undergoing regular examinations is the only thing pregnant mothers can do.
Interactive topic: How do you feel when you do pregnancy tests and other results?
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