Platelets are formed elements of blood (blood plates) that play a major role in the processes of blood clotting and clotting, as well as in reactions of nonspecific defense of the body. Their formation occurs in the bone marrow. Platelets are determined by conducting a general blood test, which is given on an empty stomach.
The norm of thrombocytes in a non-pregnant woman is - 150-400 thousand / ?L.
As a rule, the number of platelets during pregnancy varies ambiguously, because a significant role here is played by individual characteristics. In healthy pregnant women, there may be a slight decrease in their number. This may be associated with a decrease in the duration of their life and increased consumption in the peripheral circulation, since the volume of the liquid part of the blood increases in the pregnant body. A significant decrease in the number of platelets is called thrombocytopenia. This condition can arise as a result of reducing platelet formation, increasing their destruction or consumption. The most common symptoms of thrombocytopenia are bleeding, slight bruising. The cause of insufficient platelet production may be poor nutrition of the pregnant woman. In addition, a decrease in the number of platelets may occur due to chronic bleeding or immune disorders. In such cases, platelets partially cease to be produced or produced by obtaining an irregular structure.
Causes of thrombocytopenia:
- severe nephropathy, preeclampsia;
- disorders in the blood coagulation system;
- obstetric bleeding;
- antiphospholipid syndrome;
- systemic lupus erythematosus;
- Folate deficiency;
- taking medications that cause thrombocytopenia;
- a viral infection;
- an allergic reaction.
Increase in platelets is most often caused by a thickening of the blood (dehydration due to vomiting or frequent loose stool, low water intake). In general, if during a healthy pregnancy the activity of the blood coagulation system increases, it is necessary to know that this is a natural process associated with the appearance of the utero-placental circulatory circle.
To determine the presence of a clotting disorder in a pregnant woman, a coagulogram is prescribed. With the help of this study, the coagulation system is monitored and, if necessary, treated.
What are the dangerous fluctuations in the number of platelets in one or the other side for the pregnant or fetus?
For example, one of the reasons for termination of pregnancy of different terms is antiphospholipid syndrome, at which venous and arterial thromboses are diagnosed. In this case, as you understand, there is an increased amount of platelets.
Low platelets in pregnancy - this is a possible bleeding in childbirth. However, it should be noted that such a risk exists only if the platelet count at the time of delivery does not exceed 50,000.
During a spontaneous delivery in a child with immune thrombocytopenia, the risk of internal bleeding increases dramatically. Especially dangerous is a hemorrhage in the brain. Therefore, in such cases, in order to be reinsured, a cesarean section is performed. However, here there is a danger of bleeding in the mother. How to give birth to a woman with immune thrombocytopenia - the doctor decides, based on the nuances of past medical history and the course of this pregnancy. Keep in mind, that such a situation arises only with immune thrombocytopenia, and has nothing to do with its other species.