Decidual tissue: definition, indicators and features

The Maternal or decidual, the fabric is located between the embryo and uterus is required for implantation of the ovum, development of fetus, birth of a healthy child.

Conception

A Mature female reproductive cell capable of giving rise to a new life. Egg surrounded by millions of sperm in the fallopian tube, to allow myself just one, merges with it into one. The first 24 hours the fertilized egg is the most viable, the impact of the damaging factors of the external environment tolerate without adverse effects. This is due to high ability to regenerate.

By 4-5-th day from the moment of fertilization is the kernel, going a long way into the cavity of the uterus. By this time the fertilized egg many times shared, gained new opportunities, required functions.

The Egg secretes a special enzyme that can dissolve the endometrium-the membrane that lines the uterine cavity. After the fertilized egg chose a place, dissolve in it the plot of the endometrium, freed a place to live, it embeds itself in the uterine cavity. It lasts about 2 days. The hole above the implant site heals, forming a kind of roof for her house. Then, the moment of the fertilization process ends.

Produces Mucous secret, necessary for nutrition of the embryo, – Royal jelly.

The Initial stage of development of the fetus are characterized by the appearance of three membranes, the amniotic fluid that surrounds, protects and nourishes it.

The Shell of the ovum.

• Decidual tissue;

• Brushed;

• Water.

Functions decidua

By the time of arrival of the ovum, the endometrium becomes decidual membrane, providing the conditions necessary for the life of the embryo. The development of the ovum and transformation of the endometrium should go together, or implantation will not occur, pregnancy will be interrupted at an early station.

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Falling away sheath – the maternal part of the placenta, which explains it's function:

1. A Food because it contains glycogen, lipids, mucopolysaccharides, salts, trace elements, enzymes, immunoglobulins.

1. Protection, because it takes care of all pathogens, toxins, harmful substances.

1. Development because after all nutrients are used up, start to synthesize carbohydrates, fats, proteins, hormones.

1. Immune and endocrine function.

Possible abnormalities in the structure of the shell

There are numerous territorial and regional program monitoring, treatment of pregnant women, pregnant women, newborns. A requirement of the program is the study of the placenta, regardless of gestational age, the method that was used for delivery. Researched scraping the decidual tissue.

The Aim of this study is:

• Face detection and registration of existing risk factors of the disease during pregnancy;

• Timely prevention of diseases of newborn;

• Treatment and prevention of complications of pregnancy, childbirth, the postpartum period;

• Quality assessment, timeliness of dispensary observation of pregnant women;

• Identification of the causes of child mortality;

• Detection of causes of fetal death.

All examinations done urgently, using differential diagnostic methods. Interpretation of the results is done for the mother and child.

Decidual tissue can be the following izmeneniyami:

• Krovoisliania;

• Necrosum;

• Razryva;

• Vospalenie;

• Utolenie.

All the information entered in medical records of women and newborn history pregnancy, birth, illness, medical record, account for the outpatient dispensary.

Necrosis

Necrosis – the death of the local tissue developing at the site of inflammation upon cessation of blood supply to tissue and impact of microorganisms and their metabolic products. This interferes with the immune, endocrine, secretory function of the shell, decidual tissue begins to disintegrate and rejected.

Hyalinosis

Hyalinosis – this is a kind of rebirth and seals tissue at which it becomes similar to cartilage. Responsible for the development of hyalinosis decidual tissue is still not entirely understood. But it leads to intensive bleeding, premature delivery, stillbirth.

Inflammation

The interruption of the blood supply, increased vascular permeability, edema, excessive formation of cells of the changed plot characterizes inflammation. The site of inflammation directs a large number of red blood cells, appears decidual tissue with leukocytic infiltration, which is adaptive in nature. But with the progression of the process the fabric is impregnated with a huge number of white blood cells, pus appears. Even after successful treatment of the suppurative process inevitably formed adhesions, which can lead to infertility. That's how dangerous decidual tissue withinflammation.

The Reasons for this may include: endometritis, inflammation of the amniotic fluid when infection spreads by contact. Accompanied by bleeding, which can lead to abortion in the period of about 3 months of pregnancy. Decidual endometritis is manifested profuse discharges in the first few months after conception. With the progression of the process develops late miscarriage, increment, premature detachment of the placenta, involution of the uterus.

Hemorrhage

Sometimes decidual tissue with hemorrhages. It develops in the process of rupture of blood outside of vessel with increased permeability of the wall, melting it with pus or destruction of the pathological process. Observed in spontaneous abortion, tubal pregnancy, choriocarcinoma.

Rupture

Sometimes there is a gap and remain only fragments of decidual tissue. Premature rupture of the membranes leads to a long dry period, accompanied by an increased risk of infection, bleeding. Develops when infections, blood diseases, diabetes, the presence of a large number of abortions during previous pregnancies.

The Shell can increase in volume in the presence of inflammation, degeneration, the threat of termination.

Causes of changes in the decidua

• Genetic pathology of a fruit.

• Inflammation of the uterus.

• Circulation.

• Infection.

• Hemolytic disease.

• Extragenital pathology: diabetes, heart diseases, blood diseases, thyroid, nervous system.

For the prevention of threatened abortion is necessary that it was desirable. Necessary to prepare, to plan ahead, maintain a healthy lifestyle, avoid alcohol and tobacco, to cure all somatic and infectious inflammatory diseases.

Before planning a pregnancy need to take blood and urine tests (on blood coagulation, hormones), to find out the blood group of the mother, to be examined for hidden infection. Blood group, RH factor and screening for hidden infections are both parents. The list of required blood tests for infections are: toxoplasmosis, rubella, cytomegalovirus, herpes.

In case of pregnancy it is advisable as early as possible to get registered in female consultation to see your doctor regularly, follow all of the recommendations, pass required tests within established deadlines.