Premature work (pre-term) causes, symptoms and treatment mediologiest gas efficient suv 2013


• The fibronectin . A few hours before work begins, the fetal membranes change and release a substance called fibronectin. If this substance is present in low concentrations in vaginal discharge, the risk of premature labor is not high. However, even if the concentration of fibronectin is high, this does not necessarily indicate that premature labor will automatically occur.

A recent WHO report indicates that in the majority of high-income countries, the rate of premature birth has increased in recent decades. In Canada, the rate of premature births is steadily rising from about 6% in the early 1980s to 8% in recent years.

Late pregnancies (pregnant women after age 40) and the use of assisted procreation techniques, such as IVF , contributed to the increase in multiple births and premature births. In some developed countries, the increase in the number of cesarean deliveries or pre-labor births by choice of some pregnant women has also contributed to the rise in premature births.

• Of regular and frequent contractions before the 37 Th week of pregnancy (more than 6 per hour), and a tightening sensation of the uterus. The first contractions sometimes look like menstrual cramps and do not disappear after a period of rest. The pain lasts at least 20 seconds and occurs at regular intervals.

Braxton Hicks’ contractions (also known as false contactions) are uterine contractions that occur less than 8 times per hour (or less than 4 times per 20 minutes). These contractions are not accompanied by bleeding or vaginal discharge and disappear after a period of rest. They are normal and do not increase the risk of premature labor. Some women sometimes find it difficult to tell the difference between premature labor and false contractions.

It is important for the pregnant woman to know if the symptoms she identifies are related to premature labor, as it is possible to stop or slow her down sufficiently. A woman who sees the early signs of premature birth can alert her doctor in time for him to intervene. Medications can be given to slow down or stop work for several hours and allow the fetus to develop as long as possible.

Women who have had a premature child (less than 37 weeks of pregnancy) may receive a progesterone supplement (Prometrium) as an injection or vaginal gel. Progesterone supplements are usually administered between 16 and 26 weeks of pregnancy until the 36 thweek. These supplements are not effective in pregnant women with twins and have not been shown to be effective in women without a history of preterm birth.

In some women at risk or with too much cervical opening, the cervix is ​​sometimes strapped. This operation involves tightening the opening of the cervix with a wire. The wire is removed when the baby is considered to run around the 37 Th week of pregnancy.

Treatments administered to slow or stop preterm labor are intended to allow fetal lungs to grow to full maturity (usually after the 34 Th week of pregnancy). They also allow the pregnant woman time to move to a hospital or a professional center that can provide the necessary care for the premature child.

Drugs such as tocolytic agents ( terbutaline, magnesium sulfate, nifedipine indometacine and atosiban) are given to relax the uterine muscles and stop contractions. These medications are usually given if the pregnant woman is less than 34 weeks pregnant. They can stop contractions and allow a delay of several hours, up to 48 hours.

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