The position of the chorion during pregnancy: what threatens incomplete presentation of the chorion. Chorionic presentation: is it worth worrying about?

During pregnancy and examination, women may encounter the expression chorion along the posterior wall.” What does this mean, when does it occur during pregnancy, is this condition dangerous and what can be done about it, what does it mean? marginal presentation, we will tell you in this article.

What is chorion?

Chorion is one of the membranes that makes up the baby’s placenta during pregnancy. There are 3 shells in total - allanotis, aminion and chorion. During pregnancy and the formation of an embryo, a placenta is created, which attaches to the wall of the uterus. It turns out that the chorion along the back wall of the uterus is a type of attachment.

In its normal state, the placenta is attached to the fundus of the uterus or its body at the posterior wall, adjacent to the sides. There are varieties when the placenta is attached low, either to the anterior wall of the uterus, or to its lower segment, when the pharynx partially or completely covers cervical canal.

Reasons for location on the rear wall

It turns out that the chorion along the back wall is ordinary situation, not causing concern. This term is one of the types of placenta attachment, which will be indicated to you on your card after the ultrasound.

The chorion attached to the back affects the size of the tummy - it will be small compared to the front wall - the belly will be large and noticeable even in the first trimester. The chorion tends to migrate inside the body of the uterus, so that in one trimester it can be attached to the back wall, and at 12-13 weeks - already to the front. Anterior or posterior localization is detected by a doctor using ultrasound at 12-13 weeks.

But you should know that the norm for the location of the chorion is considered if it is located higher internal pharynx more than 3 cm, it should not be low. Another scenario is considered a deviation - it could be a marginal presentation, incomplete, central.

Placenta previa

Simultaneously with the diagnosis of chorion on the posterior or anterior wall, pregnant women at 12-13 weeks have the opportunity to see chorion or placenta previa in their chart. This term means: the placenta is located non-standardly - it is attached not to the uterus itself, but to its lower segment.

The first trimester may also be marked by the fact that you can also encounter complete or partial closure of the pharynx of the cervical canal, but as the baby grows at 12-13 weeks, the chorion moves and the pharynx becomes open again. But this may not happen in every case.

Low

Low presentation means that ovum attached below the cervix. This happens very rarely - in about 5 cases out of 100, and is determined by ultrasound. The first and second trimester can be characterized by this position, but almost always subsequently the chorion takes on normal position due to the growth of the uterus and stretching of the placenta.

Along the back and front wall

Posterior presentation is considered the most common option and is not considered abnormal. This is a predominantly harmless pathology. Placenta in this option can grab walls from the side. Anterior presentation is considered less rare, without going beyond the boundaries of the norm. Anterior presentation is characterized by the fact that the placenta migrates more quickly to its normal state.

When the placenta does not rise at 12-13 weeks, but the localization of the pharynx is not blocked, then pregnant women are prescribed timely examinations and complete rest without stress.

Partial

Partial presentation during pregnancy is characterized by overlap of the cervix up to 60 percent. One of the cases of this option at 12-13 weeks is marginal presentation, when the percentage of overlap is no more than 30. Such presentation is dangerous due to the threat of miscarriage, bleeding and fetal hypoxia. To treat this deviation, complete rest and sedatives, treatment is carried out at home, examinations are regularly carried out in the hospital.

Complete

Complete presentation during pregnancy is otherwise called central, when the pharynx is completely blocked. Having discovered such a pathology, already at 12-13 weeks the pregnant woman will be put on preservation due to the risk of bleeding and loss of the child. There is even a threat to the mother's life, so hospitalization is mandatory. In this scenario, it is most often indicated C-section, and adverse outcomes occur in only 5 cases out of 100.

Why does presentation occur?

Causes of breech presentation during pregnancy may include:

deviation from the norm in the condition of the internal walls of the uterus and the inability of the embryo to attach to them;
previous abortions or infectious diseases;
uterine deformation due to myomectomy;
diseases of the cardiac system, liver and kidneys that cause stagnation;
second birth of a woman after 35 years;
predominant anomaly of the ovum;
the placenta is too dense.

Despite all the threats, all of the above pathologies can be successfully treated with careful examination and monitoring by doctors. Therefore, when you see a diagnosis of anterior or posterior placenta, whose localization confuses the doctor, do not be alarmed, trust the doctors, and you can give birth to a healthy child!

The placenta is the organ of primary importance when it comes to pregnancy. Medical specialists pay close attention to her during the examination procedure. The placenta is attached to the uterus and grows parallel to the baby. In appearance, it resembles a kind of flat cake, pierced blood vessels. If the placenta is attached incorrectly or in the wrong place, then such a pathology threatens great difficulties for both the fetus and the expectant mother. The phenomenon can be caused by many factors.

Normal location of the placenta

The chorion transforms into the placenta only at the 12th week, but its final maturation occurs only at the sixteenth. Afterwards, the development of the placenta continues until the 36th week. This organ is designed to provide the baby with oxygen, all necessary substances and microelements. However ideal conditions For normal development Placentas are not always created.

Interesting fact: according to statistics, about 15% of women experience pathological placental attachment.

All types of placenta previa are pathological and require constant monitoring from the doctor's side

Physiological norm A condition is considered when the placenta is attached to the fundus of the uterus or in areas close to its lower part: the front or back wall. If deviations exist, the organ may join the pharynx.

The pharynx is an opening in the uterus that connects it to the vagina. It protects the uterine area from infection.

Based on the location of the placenta, the following types of presentation can be diagnosed:

complete (the placenta completely covers the uterine os);
low (the placenta is in close proximity to the pharynx, the approximate distance is 4–5 centimeters);
lateral (the uterine os is partially covered by the placenta);
marginal (the placenta touches the pharynx only at the edge).

Interesting fact: there is a theory that gravity plays a significant role in choosing a place for attachment of the fertilized egg. If future mom prefers to sleep on the right side, then it is attached with right side uterus and vice versa.

What is marginal placenta previa and marginal presentation along the posterior wall?

Marginal placenta previa is a pathology that occurs when the upper segment of the uterus turns out to be unsuitable for the implantation of the fertilized egg for a number of reasons, and it attaches lower. However, the embryonic organ can “migrate” during gestation. A change in the location of the placenta occurs due to a change in the structure of the lower segment of the uterus and due to the lengthening of the upper uterine segment. Typically, the “migration” process begins in the 6th week and is completed by the 34th week of pregnancy. In this case, it is not the placenta itself that moves, but the underlying myometrium (the submucosal layer of the middle muscular layer of the uterine wall) shifts. “Migration” of the embryonic organ occurs from bottom to top. If after the 34th week the edge of the placenta still touches the internal os of the uterus, then we can talk about the marginal attachment of the placenta.

Interesting fact: marginal placenta previa after the 32nd week is typical for only 5% of pregnant women. However, they still belong to the risk group, since the percentage of perinatal mortality increases in this case by 25%.

Marginal presentation of the placenta along the posterior wall is an indicator that the organ will not leave the internal os in most cases. This position will contribute to the successful completion of the cesarean section, since the placenta is not injured during the incision. The posterior wall is not elastic and is little subject to change, so the likelihood of “migration” of the embryonic organ is low. Regional presentation along the anterior wall is more dangerous, since the organ in this case is subjected to serious stress, and there is a risk of mechanical disruption of the integrity of the placenta. At the same time, there is Great chance, What's on later During pregnancy, the placenta will return to its normal position.

Placenta previa often leads to persistent bleeding. The latter are more expected in later stages of pregnancy. This is due to the active formation of the lower segment of the uterus. The placenta is capable of correctly performing the task assigned to it only when it is located normally.

Important: during pregnancy, it is imperative to monitor the location of the placenta, its thickness and structure using ultrasound. It is advisable to carry out the first no later than the 13th week. The thickness of the organ can only be determined at the twentieth.

Complications with marginal placenta previa

The placenta may return to its normal position closer to the third trimester. This does not happen in only 5% of women in labor. In this case, the following complications are possible:

premature labor activity or the need arises for emergency interruption pregnancy;
severe iron deficiency anemia;
developmental defects and prolonged fetal hypoxia;
placental abruption (marginal or central);
rupture of the uterine body due to fusion of its walls with the placenta;
perinatal fetal death;
embolism (blocking of lumens) of blood vessels;
profuse bleeding upon completion of childbirth.

Video: placenta previa

Causes of the pathological location of the placenta

Placenta previa can be caused by the most for various reasons and factors. The fertilized egg may differ in some features. The state of health of the mother and the processes occurring directly in the uterus play a major role. It is not possible to influence the place where the placenta is implanted by medical means; the process is uncontrollable. However, a woman is quite capable of minimizing potential risks.

Abnormalities of the ovum

Trophoblast (outer cell mass of the embryo), which is formed during the cell's journey through the female reproductive organs- This chief assistant at the stage of attachment of the fertilized egg to the wall of the uterus. In the future, it is he who helps the fetus form the placenta. The membrane covering the fertilized egg may be too dense. In this case, successful implantation will not occur, even if the fertilized cell (zygote) is strong.

If you believe the statistics, then only healthy embryos, without genetic abnormalities, are able to properly implant into the uterine cavity. Embryos with congenital pathologies or they don't pass natural selection female body(the latter provokes a miscarriage), or are attached incorrectly.

Correct implantation of the fertilized egg can only occur with good tubal patency, absence of abnormalities in the embryo and favorable uterine mucosa

In addition, the fertilized egg may not be active enough. If it does not promptly release a sufficient amount of enzymes that destroy the mucous membrane, then abnormal placentation may occur. While the egg is in the upper segments of the uterus, it does not have time to mature for implantation, and when the process is completed, it no longer has a choice and has to be attached lower.

Reasons related to maternal health

Once in the uterus, the fertilized egg begins to actively look for a place for implantation. Normally it is attached to upper layers uterus (most often involved back wall or bottom). However, this does not happen if the organ mucosa is damaged. Then the fertilized egg descends and implants into the lower segments of the uterus. There are many provoking reasons for this phenomenon, their list is as follows:

bad habits;
inflammatory processes occurring in the uterus;
frequent births or a significant number of them;
carrying out a curettage procedure or abortive intervention during pregnancy, as well as infection that may result from them;
tumor development in the uterus;
an abundance of scars on the body of the uterus;
various anomalies of the uterine organ;
endometriosis (a disease associated with the growth of internal cells of the uterus beyond the organ);
too much late first childbirth;
hormonal disruptions and disorders;
multiple pregnancy;
accompanying illnesses internal organs. For pathologies of cardio-vascular system or circulatory disorders, congestion may form in the pelvic organs, as a result of which the fertilized egg cannot attach normally.

All the factors described above can negatively affect the course of pregnancy and fetal development.

Symptoms of marginal placenta previa

Regional placenta previa can be characterized by two types of symptoms: silent and severe. The first does not involve changes, so the woman is unable to respond to the ongoing process in a timely and correct manner. Violations can only be detected by ultrasound diagnostics.
At abnormal location the placenta can tear away from the walls of the uterus and cause bleeding

With severe symptoms, the incorrect location of the embryonic organ is most often manifested by external bleeding. In addition, false contractions may appear at any time. It is the latter that lead to stretching of the uterus, separation of the placenta from its walls and rupture of blood vessels. Bleeding can also occur at a time when the organ opens much later than the uterine segment. The placenta exfoliates, which leads to disastrous consequences.

Important: bleeding tends to occur at the most unexpected moment; the process cannot be predicted. It can form even during a night's rest. Its strength and duration cannot be predicted either.

Regional placenta previa can manifest itself in different ways. It all depends on individual characteristics body. At the first sign of discomfort, consultation with a doctor is required.

Diagnosis of pathological locations of the placenta

The anomaly is detected by ultrasound examination. Using ultrasound, you can accurately determine the presence of pathology, the specific position of the placenta body and the location of its edges. Computer diagnostics gives an idea of the thickness of the organ and its size. An ultrasound can also record the distance from the lower edge of the placenta to the internal os of the uterus. This parameter is very important because it can tell you about potential risks and complications.

A bimanual examination of the vagina (assessment of the condition of the uterus, ovaries and pelvic tissues on a gynecological chair) is not advisable in order to prevent bleeding, which may ultimately cause premature birth. In a situation where it is impossible to perform an ultrasound, the doctor must carefully carry out the examination and draw conclusions.

Treatment

It is impossible to cure marginal placenta previa in the truest sense of the word. There is only an opportunity to promote the “migration” of the embryonic organ or to prevent the situation from getting worse. In order to reduce pressure on the vaginal vessels and the lower edge of the placenta, a woman is recommended to use a special bandage. For a pregnant woman in such a situation, physical activity and stress, which can lead to jumps, are contraindicated. blood pressure. Sexual contact should also be avoided.
If a pregnant woman is diagnosed with placenta previa, it is recommended to wear a bandage

An exercise will help reduce pressure on the lower edge of the placenta: a woman is recommended to stand on both hands and feet on the floor 3-4 times a day. You need to stay in this position for several minutes. In this way, it will be possible to somewhat stretch the anterior wall of the uterus and achieve some upward movement of the placenta. The exercise may be especially effective in the second trimester.
In order to reduce pressure on the lower edge of the placenta, a woman is recommended to stand on all fours for a few minutes 3-4 times a day.

Drug treatment may include vitamin therapy, taking antiaggregation agents (suppressing the adhesion of blood cells) and vascular drugs in doses that are safe for the health of the mother and fetus.

Most often, women diagnosed with marginal placenta previa are hospitalized at 24 weeks. Procedures are carried out in the hospital and preventive actions, such as:

tocolytic therapy. A pregnant woman is prescribed medications to reduce the number of uterine contractions. This effect is possessed by: Ginipral and Partusisten. They are administered to the expectant mother by drip or intramuscular injection;
prevention of fetoplacental insufficiency. A pregnant woman is prescribed vitamin complexes and drugs designed to improve blood circulation: Curantil, Trental or Actovegin;
prevention of anemia. A woman is prescribed drugs that increase the level of hemoglobin in the blood;
taking antispasmodics. Women are prescribed suppositories with papaverine, Magne-B6, No-shpa or magnesium sulfate. Therapy is aimed at reducing the tone of the uterine organ;
prevention of premature birth. If there are risks due to placental abruption, additional treatment is carried out with corticosteroids: Dexamethasone and Hydrocortisone. This is necessary to prevent breathing disorders in the baby.

Childbirth with marginal presentation

In a situation where special exercises did not help, and the bandage did not give the desired effect, doctors decide on the most in a safe way delivery. This usually occurs at 36–38 weeks of gestation. If the ultrasound still indicates marginal placenta previa, the obstetrician-gynecologist may recommend early hospitalization.

If bleeding is mild or absent, then natural delivery is possible. In this case, when the cervix is dilated into 3 fingers, a prophylactic amniotomy is performed (opening the membranes amniotic sac).
If the cervix is dilated to 3 fingers and a diagnosis of marginal presentation is made, a woman is recommended to have a prophylactic amniotomy

Some obstetricians and gynecologists allow women to give birth on their own, even if there is bleeding. If the cervix is smooth and soft, then an amniotomy is performed before contractions, as a result of which the baby descends and is closely pressed against the entrance to the pelvic area, thereby retaining the detached lobules of the placenta. This will stop the bleeding. The woman is also prescribed the drug Oxytocin. It reduces the amount of blood loss during childbirth and speeds up the process, causing strong and frequent contractions.

When amniotomy is not effective, a woman with heavy bleeding is prescribed a cesarean section. In some cases, early surgical delivery (when the period is less than 36 weeks) is acceptable. In this case, not only the woman, but also the child is prepared for premature intervention by administering drugs that accelerate the formation of alveoli in the lungs. The maturity of the fetus and its readiness for childbirth will help to assess ultrasonography.

Important: bleeding limits or completely eliminates the use of antiplatelet agents that help improve blood flow. Anemia can lead to poor maternal health or fetal hypoxia (lack of oxygen).

Photo gallery: childbirth with a diagnosis of placenta previa

If bleeding during placenta previa is weak or absent, then natural delivery is possible. If there is heavy bleeding and a diagnosis of placenta previa, the doctor may decide to perform an early surgical delivery. When amniotomy is not effective, a woman with heavy bleeding and a diagnosis of marginal presentation is prescribed a cesarean section.

Video: when a caesarean section is inevitable

Regional placenta previa is a diagnosis that is becoming more common. It did not bypass the author of the article either. The gynecologist advised eliminating physical activity, resting more, monitoring blood pressure(there were problems with him), to hold off on sexual intercourse and recommended wearing a special bandage. Initially, I followed the doctor’s advice, but I didn’t have enough patience for long. I walked a lot to work, carried heavy bags and reassured myself that there was no need to worry about trifles. I put the bandage aside almost immediately, since wearing it caused discomfort. When removed, the child became more active, as if he was grateful for the “expansion of free space.” At 23 weeks, slight bleeding appeared. I got scared, called a taxi and went to the hospital. The doctor admitted me to the hospital, but for a week it did not recur. Calm has come. I began to take more care of myself, but at the 38th week the doctor insisted on hospitalization, and for good reason. At 39 weeks I woke up bleeding heavily. Since the uterus had already begun to open, the obstetrician-gynecologist opened the membrane of the amniotic sac, and they began to prepare me for childbirth. Oxytocin was prescribed to speed up the process and reduce blood loss. I gave birth on my own, and everything went relatively well. There was a lot of blood, I suffered a lot of fear, but the main thing is that the child was born healthy. Conclusion: you must always listen to your doctor’s recommendations and strictly follow them. Self-indulgence and careless attitude can lead to harmful consequences. When a child’s life is at stake, there is no point in taking risks.

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Chorionic previa (placenta) is an incorrect location of the placenta when, instead of the body of the uterus, it captures partially or completely the lower uterine segment. Chorion is a synonym for placenta early stages development. By the end of pregnancy, in most patients the chorion rises, but there are exceptions. If the localization of the chorion is posterior, then it will rise more slowly, if it is anterior, then faster.

Causes of the disease

The exact and reliable causes of this disease are unknown, but there are a number of factors that contribute to the development of this disease. In particular, chorionic presentation can develop due to:

after a caesarean section;
Scar after myomectomy;
The patient has a large number of births;
Age over 35 years;
Chorionic presentation during previous births;
Chronic;
Tumor of the uterus (fibroids);
Anomalies and pathologies during organ development;
Smoking.

In addition, we can say that chorionic presentation is quite common in the early stages of pregnancy, statistically this is up to 30% of cases.

Symptoms of the disease

The main symptom of the disease is the appearance of bleeding, which appears due to the fact that the placenta is not capable of stretching, so when the uterus stretches, it peels off and causes bleeding. Bleeding can appear spontaneously, then disappearing, then appearing again, while the pain disappears. Low position chorion contributes to heavy bleeding. In addition, bleeding can be triggered by factors such as physical activity, vaginal examination, sexual intercourse, hot bath, sauna, and also constipation.

Complications that can cause chorionic presentation

The main complication that this disease gives is unplanned termination of pregnancy or premature birth. With this disease, the child develops normally, but patients experience characteristic hypotension, so even slight blood loss leads to anemia. If the bleeding began spontaneously, then sometimes it is necessary to take the last measure in order to save the life of the mother and baby.

Diagnosis of the disease

Diagnosis of presentation usually does not cause difficulties in a patient who is normally observed in the hospital. This disease can be easily diagnosed with a routine ultrasound examination. It is not recommended for pregnant women.

If the patient has not undergone an ultrasound examination, then this disease can be recognized by the fact that it is not accompanied by painful sensations, as well as by standing tall fundus of the uterus.

Treatment of the disease

First of all, it must be said that everything medicines for this pathology they are absolutely useless, because they cannot in any way affect the location of the chorion. If suspicious symptoms appear and the disease is diagnosed, it is necessary to completely exclude any physical activity, as well as completely avoid sexual contact. In addition, the patient needs constant supervision by a specialist, so she is hospitalized in the hospital.

In the event that there is no constant bleeding, the patient may well remain at home, while resting more often fresh air and eating right, choosing a diet to prevent constipation. It should be noted that this is especially important, because with this pathology any laxatives are contraindicated.

If the patient has a complete chorionic presentation, then natural childbirth is contraindicated for her and requires natural childbirth there is a high risk, resulting in large blood loss, which will threaten the health of both mother and child.

"- similar diagnosis can be found in medical card pregnant quite often. In the first half of pregnancy, the “embryo” and “chorion” are medical terms, personifying the child and the placenta, respectively. Chorionic presentation indicates the site of attachment of the future placenta to the uterine wall, which may suggest further development fetus in the uterine cavity. In order to accurately consider the issue, such medical terms should be analyzed in detail.

Internal position of the chorion

The chorion is a continuation of the umbilical vein of the embryo. It attaches to the wall of the uterus, as a result of which the embryo, and later the child, will receive all the necessary and beneficial nutrients that directly affect the development of the fetus.
The chorion attachment is formed in three places:

to the fundus of the uterus;
to the side walls;
in the cervical area, where central, marginal, and incomplete chorion presentation are distinguished.

Normal attachment of the chorion is its attachment to the bottom or sides of the uterus. In 10-12% of cases, the chorion is attached to the cervix. This position is called presentation. Depending on the location of attachment, there are also several varieties of the presented diagnosis.

Chorionic presentation at 12 and 13 weeks

At the end of the first semester, the pregnant woman is assigned the first. Here you can find a similar diagnosis of the attachment of the future placenta. It is necessary to consider the presented medical terms in more detail.

Chorionic presentation at 12 or 13 weeks

It should be noted that chorion presentation at 12 weeks does not mean its permanent location until birth. Very often a kind of migration occurs. Similar processes are carried out until week 20. Sometimes you can observe migration at quite a late stage - almost before birth.

Chorionic presentation at 13 weeks indicates the place of attachment in the cervical cavity. Such features of the development of pregnancy have practically no effect on the development of the fetus, however, one should not deviate from general rules maintaining pregnancy. Typically, chorionic presentation at 13 weeks prohibits sexual intercourse for pregnant women, as well as any heavy lifting. You should not expose yourself to stress and physical activity.

IN otherwise a woman is at risk of heavy bleeding if the placental tissue is detached. Therefore, a woman should take care of herself and her child, because heavy bleeding can provoke hemorrhagic shock, from which expectant mother may die. Even the slightest bleeding threatens the baby's loss required quantity oxygen and nutritional components.

Regional chorionic presentation at 13 weeks

As already described above, chorion presentation has several varieties. They, in turn, influence the further development of the fetus, as well as the result of the form of delivery - natural or cesarean section. Regional presentation of the chorion at 12 weeks is the most favorable outcome that can develop with the presented pathology. This type of pathology can “eliminate on its own” as a result of migration within a few days or weeks.

Regional presentation of the chorion is characterized by partial overlap of the cervix. The presented species is divided into two subspecies. Thus, they distinguish between marginal presentation of the chorion at the 13th week, where the future placenta covers no more than 1/3 of the cervix, and incomplete attachment, which entails more dangers and difficulties, since this diagnosis is made in the case of overlap of 2/3 of the cervix. Both subspecies have the ability to migrate, so the expectant mother should not worry. Most women give birth on their own, even if they were once diagnosed with marginal chorionic presentation at 12 or 13 weeks.

What does chorion presentation mean?

Before you panic, it’s worth understanding what chorion is and what role it plays in the course of pregnancy. The chorion is an organ that is the connecting link between the body of the mother and the fetus. This is the initial stage of placenta development, so this term usually used during the first trimester. In the second trimester, the name “placenta” is already used.

The chorion is attached to the wall of the uterus, and on the other side it is attached to the fetus. When the location is different from normal, there may be various kinds violations.

According to its structure, the uterus communicates with the vagina and external genitalia through the cervix. Inside the cervix there is a cervical canal, the opening of which is called the pharynx, which opens into the uterus. The chorion (future placenta) is attached to the bottom of the uterus or its lateral surfaces, which should not overlap the cervical os. But medicine knows cases when the chorion blocks this hole, and a violation occurs - chorion presentation.

Types of chorion presentation

The complexity of the presentation state is determined by the degree of closure of the cervical canal by the chorion:

If the doctor concludes “chorionic presentation”, do not panic. The developing placenta can be pulled away by the growing uterus.

Even central presentation can eventually turn into marginal or partial, and then completely disappear. According to statistics, 90% of presentations during pregnancy go away completely. Therefore, such a diagnosis, as a rule, means a temporary location of the chorion. A pregnant woman does not need to be nervous, the main thing is to undergo examinations on time and monitor her condition.

Why does previa occur?

Medicine reasons for the attachment of the chorion in such dangerous place are not reliably known. However, some patterns associated with certain conditions and diseases of women have been noticed.

Abortion with “cleaning”, removal of fibroids surgically and caesarean section. As a result of such interventions, adhesions and scars appear on the surface of the uterus; these formations can cause incomplete attachment of the chorion.
Numerous births. The more births a woman has had, the higher the likelihood of developing malpresentation developing placenta. This phenomenon is due to the fact that after pregnancy, at the site of attachment of the placenta, the structure of the endometrium changes. The next time the chorion can no longer gain a foothold in the same place, after numerous births in correct position there are no more places. That is why it is mounted in a dangerous area.
Deformation of the uterus. This feature can affect the position of the chorion.
Diseases of the kidneys, heart and liver. At similar diseases Often there is stagnation of blood in the pelvic area, which provokes low attachment of the placenta.

Chorionic detachment

As a result full presentation Placental abruption may occur. This is quite dangerous for a pregnant woman; bleeding may occur. In a child, this condition causes hypoxia, which can result in death. Therefore, pregnant women similar diagnosis treated in an inpatient setting.

How chorionic detachment manifests itself, the main symptoms

There are several signs by which you can understand that placental abruption is occurring:

Sharp, cramping pain in the lower abdomen;
Dizziness;
A pregnant woman feels tinnitus;
Blood pressure drops sharply and severe weakness is felt;
Opening of bleeding. Even with small bloody discharge you should seek medical help immediately;
Loss of consciousness.

Placental abruption can be complete or partial. Partial detachment means a slight accumulation of blood at the edge or center. With complete detachment, blood fills the space between the placenta and the wall of the uterus.

Total detachment is very dangerous and cannot be treated. In the later stages of pregnancy, the doctor will try with all his might to save the fetus, but in the first trimester the result may be a miscarriage. If the detachment is complete, maintaining the pregnancy will threaten the life of the mother, and severe internal bleeding may occur.

How is presentation and chorionic detachment treated?

In the first trimester, it is impossible to correct a condition such as chorionic presentation. Only prevention of complications is carried out. If any appear, in the second trimester of pregnancy the woman is treated in a hospital.

One of the complications is placental abruption, but also for its treatment effective methods medicine doesn't know. It is worth noting that if partial detachment occurs in the first trimester of pregnancy, the result will not necessarily be a miscarriage; it can be saved.

Depending on the reason for the detachment, the doctor prescribes medications. For uterine tone, these are tocolytic drugs, for heavy discharge hemostatic agents and for progesterone deficiency - Utrozhestan.

During pregnancy with such complications, the woman must follow a pastel regime and not expose the body to physical activity. Emotional stress must be avoided and sexual contact will have to be completely avoided. Give Special attention nutrition, it must be correct and regular, do not forget about taking vitamins.

It is worth thinking about going on maternity leave early; mental stress and stress can cause no less harm to a pregnant woman than physical activity.

If a pregnant woman has been diagnosed with such disorders, do not despair, because most pregnancies with such abnormalities end in successful births. The main thing is to carefully monitor your health, listen to your body and at the first warning signs (sharp pains, weakness, bleeding) call an ambulance immediately.