Often women with otically RH factor, worried about their beremennosti and I must say, the reasonably. the RH factor is a protein located on the surface of red blood cells. Difficulties arise if the mother is negative RH factor(Rh−) and the child (Rh+) - positive, inherited from his father. Rarely develops incompatibility on system ABO (group incompatibility). In contact with antigens of fetal blood in the mother's blood produces antibodies.
Antibodies in pregnancy destroy the red blood cells of the fetus, which leads to negative consequences, such as hemolytic disease. The attendant problems are: the liver, the circulatory system, heart failure. In the body of the fetus can accumulate fluid, leading to edema. The disease begins to develop around the 22nd week of pregnancy.
Why the threat rhesus-conflict
It Should be noted that rhesus incompatibility is not very dangerous in case of pregnancy the first. The mixing of maternal blood with the blood of a child takes place after birth, and even has already formed the antibodies do not pose a threat to the baby.
However, if a woman is expecting a second baby, antibodies in pregnancy can cause serious pathologies, from which the child may die in the womb. The main danger lies in the release of large amounts of the substance bilirubin the fruit to combat the antibodies that could affect his internal organs, mainly the liver, spleen and brain. Often rhesus-conflict leads to miscarriage or premature birth.
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Antibodies are formed during pregnancy in case the woman who is RH negative and man is RH positive. In this case, rhesus conflict occurs in 75% of cases. Incompatibility can occur if woman was made a blood transfusion, and RH were not considered.
A blood test for antibodies.
Even when planning a pregnancy every woman should know their RH factor and RH factor of the child's father. If there is a chance of rhesus-conflict, she will need to do the analysis on antibodies in pregnancy repeatedly. First time need to perform this procedure on 8 week of pregnancy and then routinely check for antibodies to 30 weeks – once a month until 36 weeks – weekly.
The same serious consequences incompatibility of blood groups of the mother and child. Difficulties arise if the woman has I group of blood, and fetal blood of II or III group. In this case, the antigens of the fetus enter the mother's blood and distinguished group antibodies. Group antibodies during pregnancy lead to development of hemolytic disease and is no less dangerous than the D antigen.
However, a blood test for antibodies may indicate pathology only if it was produced in conjunction with other diagnostic methods. Great importance is the antibody titer and change in the pregnancy process. The higher the antibody titre, the more likely an adverse outcome.
Antibodies during pregnancy should be identified in a timely manner, and the lady in position are assigned to rates of injection that are held from 10 to 22, with 22 по24 and 32 to 34 a week. Complications a pregnant woman should be in hospital under medical supervision.
Women with a history of miscarried or born child suffered hemolytic disease in severe, carries out the procedure of plasmapheresis, aimed at removing antibodies from the blood.
If hemolytic disease of the fetus was confirmed, the early delivery. This is due to the fact that by the end of the period the flow of antibodies thereto increases. In severe disease of the fetus pregnancy is terminated. But in most cases it is possible to bring to an acceptable date of birth.
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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."
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