What Is a Prenatal Growth Chart?

Fetal distress is caused by hypoxia and acidosis in the fetus. The longer the fetus is deprived of oxygen in the uterus, the greater the risk. Fetal distress is one of the main indications for cesarean section.

Prenatal fetal distress

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Fetal distress is caused by hypoxia and acidosis in the fetus. The longer the fetus is deprived of oxygen in the uterus, the greater the risk. Fetal distress is one of the main indications for cesarean section.

nickname

Prenatal fetal distress

TCM disease name

Prenatal fetal distress

According to the speed of occurrence of distress, it can be divided into: acute fetal distress and chronic fetal distress.
(1) Chronic fetal distress often occurs in the third trimester of pregnancy. As pregnant women suffer from systemic diseases such as severe anemia, pregnancy-induced hypertension, expired pregnancy, etc., affecting the fetal blood oxygen supply, deteriorating the fetal growth environment, ischemia and hypoxia Causes fetal intrauterine growth and development retardation. Fetal malformations can also cause distress.
(2) Acute fetal distress due to umbilical cord abnormalities such as prolapse, the fetal blood supply is affected; prolonged labor, fetal compression for too long, excessive weight, etc. can cause acute fetal hypoxia, and severe cases can cause fetal death in the uterus.

Fetal distress is caused by hypoxia and acidosis in the fetus. Fetal distress in labor is often accompanied by the following changes.
(1) Normal fetal heart rate The range of normal fetal heart rate is 120-160 beats / min. More than 160 beats per minute, called tachycardia, is the initial signal of fetal distress; if the fetal heart is not corrected in time, it will gradually slow down, less than 120 beats per minute, or even less than 100 beats per minute. The fetus is very dangerous and will soon The fetal heart disappeared, and the fetus died in the palace. However, the change of the fetal heart requires careful examination of the cause, and auscultation several times after changing the position, and continued listening for several minutes to determine the fetal distress.
(2) Fetal movement is another important indicator of fetal distress. Under normal circumstances, the fetal movement count is not less than 10 times / 12 hours. If the fetal movement exceeds 10 times per hour, it is said that the fetal movement is too frequent, which indicates that the fetus is struggling with hypoxia. If the hypoxia is not improved, the fetal movement will gradually slow down or even disappear.
(3) Contamination of amniotic fluid with meconium indicates hypoxia in the fetus. After the membrane is broken, meconium in the amniotic fluid indicates fetal distress.
(4) NST fetal heart rate monitor showed late deceleration or lack of baseline variation, suggesting fetal distress.

Fetal distress that occurs during childbirth is mostly acute fetal distress. Doctors should analyze the cause of hypoxia and deal with it in a timely manner. The management principle is to improve the blood oxygen supply to the fetus and end the delivery as soon as possible.
(1) Immediately inhale oxygen to the mother and increase the blood oxygen supply to the fetus.
(2) If the uterine orifice has been fully opened, if the first exposure has reached 2 cm below the sciatic spine, perform fetal head suction or forceps as soon as possible to assist the delivery; if the uterine orifice is not fully opened, and the fetal is distressed, intravenous injection of "triple" The drug, namely, 20 ml of 10% glucose injection, 1.0 g of vitamin C, and 5 mg of dexamethasone, increases the tolerance of the fetus to hypoxia, and ends the delivery as soon as possible by cesarean section.
Chronic fetal distress during pregnancy should be managed according to the gestational week and fetal maturity. For those with a small gestation week and severe fetal hypoxia, fetal development will be affected and labor should be induced. For those who have a good prenatal examination, the mother can be instructed to stay in bed and inhale oxygen to maximize the placental blood supply, maintain the normal development of the fetus, prolong the gestation week, and improve the fetal viability.
In short, the longer the fetal hypoxia, the worse the prognosis, so doctors should do their best to treat and manage fetal distress in a timely manner to reduce the incidence and mortality of neonatal asphyxia.
Prenatal fetal distress