message that generations will have to encourage, among expectant mothers is always alarming.They fear that the acceleration of the natural course of events hurt the child.In fact, the opposite is true: the means by which to stimulate labor, are needed to eliminate the factors hindering the normal process, so discuss what induction of labor in pregnant women.
genera divided into 2 periods.While one is completed, the next will not be able to start.So, at the first stage are the key points in 2 - softening of the cervix and its gradual unfolding due to contractions.If the tissue of the uterus is not prepared to leave, the fight will not start or will be ineffective, and the cervix is not revealed.Attempts - the main event of the second period - start only after it reaches a diameter of 10 cm. Hitches occur at any of these stages, for various reasons.The risk often get very young (under 20 years) mothers, because their reproductive system is not yet mature enough.After 35 years of complications are due t
Sometimes the natural course of events inhibit chronic endocrine, hormonal or metabolic disorders or a lingering inflammation.But most of all generations do not start just because the woman they are not afraid to set up and much pain.All unscheduled "stop" doctors eliminated with artificial hormones and bioactive substances.If you need to run the generic activities, obstetricians say "Induction of labor," and if it is important to stress - the "rodostimulyatsii."
first problem: the cervix is not disclosed.For availability (doctors say - "maturity") of the uterus for childbirth respond biologically active substances prostaglandins.They are contained in the cells of various tissues and promote their reduction.The main task of prostaglandins before birth - to soften the cervix so that she can open up.It is with this process and begin labors.
Under the influence of prostaglandins muscle tone the lower part of the uterus increases, and in the neck, on the contrary, decreases, and its tissues become more elastic and better stretched.It increases the production of prostaglandins in a natural way on the eve of the X hours.Doctors believe that these biochemical reactions in the body mothers run by the signal that comes from the brain of a child, or rather of situated therein gland (epiphysis).If an insufficient number of prostaglandins produced, the cervix is not disclosed.Doctors make up the deficit by artificial analogues of these substances.A preparation in gel form is introduced into the vagina and cervix.After 4 hours, after that it softens and begins the fight.
Another failure in the first stage of labor can happen if cervical dilation stops.Normally contractions begin at the whole sac, which puts pressure on the cervix and helps it grow.When the diameter of the opening is 4 cm, the pressure in the uterus is improved.And the bag of waters at this point will burst, otherwise the process will slow down.If it remains intact, doctors do anmiotomiyu - pierce it with a special tool.If, after the rupture of membranes cervix still starts to unfold, the generic activities intensify with an artificial analogue of oxytocin - a hormone that regulates the contraction of muscle tissues, including those that form the reproductive organs.
dose of drug is calculated from the weight of the pregnant woman.In the body the drug is injected through the catheter.While oxytocin enters the body, the intensity of labor and well-being baby doctors monitored especially closely by sensors cardiotocography (CTG), mounted on the belly of the future mother.Data appears on the monitor heart rate of the child.And it depends on the intensity and frequency of contractions.When the uterus contracts, the blood flow in the placenta is slowing.From this drop in blood oxygen content of the baby, and there is a short-term hypoxia (oxygen starvation).This baby's heartbeat quickens, as evidenced by data CTG.Normally, the fight at the end of childbirth lasts 1 minute and repeated every 2-3 minutes.The body breaks kid manages to compensate for the effects of hypoxia and heartbeat is restored.But if a pregnant woman fights occur more frequently anoxia lasts continuously and harm to the child, and the monitor detects a slow heart beat.
In this case, the baby is born with the so-called oxytocin syndrome, debilitating adaptive mechanisms and reflexes.That is why doctors are closely monitoring the reaction of the uterus to the drug.And if it starts to fall too hard, stop oxytocin.To avoid severe hypoxic stimulation was stopped after 4-6 hours, even if the neck was not disclosed.Then the output becomes a cesarean section.
Oxytocin is used for solving the main problems of the second stage of labor in a pregnant woman - weak attempts.In the normal course of events when attempts are the driving forces of the diaphragm, abdominal muscles and uterus.Under the pressure of these baby moves through the birth canal and out.If, during childbirth a woman can not effectively stretch the diaphragm and abdominal muscles, the uterus has to "push" the baby alone.To do this it must repeatedly greatly reduced, and without such powerful action of oxytocin is not possible.