increased tone of the uterus during pregnancy is not desirable - it poses a threat to its premature interruption.In addition, the uterine muscles are constantly tight squeeze blood vessels that carry to the fetus the nutrients and oxygen, so long hypertonicity of the uterus necessarily reflected on the state of the fetus.
mechanisms regulating the tone of the uterus during pregnancy
week after conception, the embryo is embedded in the uterine lining, and its shell villi begin to secrete a new hormone - human chorionic gonadotropin (hCG), whose main task - to stimulate additional production of the femalesex hormone progesterone.Progesterone is produced in the second half of the menstrual cycle temporary endocrine gland corpus luteum, located in the ovary.Under the influence of hCG corpus luteum of menstruation grows and becomes a corpus luteum of pregnancy, which produces a lot more progesterone.
main objective of progesterone - suppress locomotor activity and increased excitability of th
Physiological uterine hypertonus ensured by the fact that it increases the number of muscle fibers and the content of substances that ensure its contraction (calcium, protein actomyosin and other biologically active substances).It is preparing the body for childbirth.But this mechanism need not be soon, so progesterone Progesterone - norm and pathology not prevent the accumulation of these substances, but inhibits their activity.
danger of uterine hypertonus in the fact that the muscle contraction squeezes blood vessels of the uterus, so the fetus disturbed nutrition.This is very dangerous, especially dangerous lack of oxygen to the brain of the fetus - it can lead to severe injuries and his lag child in psychological development.
Causes of the tone of the uterus during pregnancy
most common cause of increasing the tone of the uterus during early pregnancy is insufficient production of progesterone.Progesterone in the first twelve - sixteen weeks of pregnancy is produced in the corpus luteum of pregnancy, and then, when the placenta is formed, it takes over the function.
In addition, the cause may be hyper stress, high neuro-psychological and physical stress, lack of sleep, nervous disorders, inflammation of the female genital organs, tumors of the uterus (such as fibroids), endometriosis Endometriosis - a serious problem with serious consequences (overgrowth of tissue similar to the mucosal tissue of the uterine cavity in the muscle layer of the uterus), acute and chronic diseases of internal organs (the cardiovascular system, kidney, liver), bad habits (smoking, alcohol abuse).
signs of increased uterine tone
signs of increased tone of the uterus are often nagging pain in the lower abdomen and lumbosacral region.After the twentieth week of pregnancy, a uterine tonic may appear sharp pains like contractions of the uterus and a sense of fossils.The peculiarity of pain is that they can be removed by taking antispasmodic (eg, no-silos).
But sometimes a woman can not feel the increased uterine tone.It can reveal, putting a hand on the woman's abdomen, it becomes hard, a feeling of fossils.For all the changes in a woman's body had been seen and treated in a timely manner, it should be on a monthly basis to visit an obstetrician-gynecologist of female consultation.If you suspect a uterine tonic woman sent for ultrasound (US), which are clearly visible place increased muscle contractions of the uterus.Gipertonus especially dangerous in the area of attachment of the placenta - it can cause her premature detachment.
How to help a woman with a uterine tonic
the first and second trimester of pregnancy to suppress hyper prescribe hormones Hormonal drugs - not just contraceptives - synthetic versions of progesterone (djufaston, utrozhestan)which corresponds to the chemical composition of natural progesterone, but can be used orally or in the form of vaginal suppositories, whereas progesterone applied only by injection.
If symptoms become severe hyper and aching, the pregnant women are advised to comply with bed rest, sedatives (eg, infusion Leonurus) and antispasmodics (eg, vaginal suppositories vaginal suppositories - for contraception and treatment of inflammation with papaverine).
If improvement does not occur, continue to carry out the treatment in the hospital, in the department of conservation of pregnancy, as conducted in this case, treatment should be under constant medical supervision.Assign resources, relaxes the muscles of the uterus.
If a woman regularly attend antenatal clinics, the change in tone of the uterus to be seen in a timely manner and the woman will receive all necessary assistance.