B-ultrasound data: BPD7.0cm, HC24.4cm, AC21.2cm, FL4.6cm. . . . . . What does it mean? Big brother and big sister, tell me what you know. Is it normal?

Hello, the data are BPD: Fetal position HC: Head circumference AC: Abdominal circumference FL: Femoral length, the data is basically normal, the maximum anteroposterior diameter of the nourishing water dark area is 4.2cm, which means the fetus is more likely to be malformed or something. , keep following up!

1. Causes

1. Fetal malformations: mainly neural tube malformations and digestive tract malformations.

2. Multiple pregnancy: most common are monozygotic twins with hematopoiesis.

3. Various diseases of pregnant women and fetuses: such as diabetes, ABO or Rh blood group incompatibility, pregnancy-induced hypertension, acute hepatitis, severe anemia, etc.

4． Placental umbilical cord lesions: such as placental villous hemangioma, amniochorionitis, etc.

5. Idiopathic polyhydramnios: the cause is unknown, accounting for about 30%.

2. Diagnosis

1. Clinical manifestations

Pregnant women with polyhydramnios may have difficulty breathing due to their large uterus and cannot lie flat; patients with acute polyhydramnios may experience abdominal distension and pain, breathlessness, orthopnea, and even cyanosis. Varicose veins of the lower limbs and vulva are prone to occur.

2. Obstetric examination

The uterine height, abdominal circumference and weight curves are significantly higher than those of pregnant women of the same gestational age. The skin tension is high during palpation, the fetal position is unclear, and the fetal heartbeat is far away.

3. B-ultrasound examination

Amniotic fluid index (AFI) is greater than 20cm, and the maximum level of amniotic fluid is greater than 8cm, indicating polyhydramnios.

The amniotic fluid index refers to the pregnant woman’s head height 30°, lying down, taking the transumbilical transverse line and the abdominal white line as landmarks, dividing the abdomen into four quadrants, and measuring the sum of the maximum amniotic fluid dark areas in each quadrant. And get.

4． Basis for diagnosis: The total amount of amniotic fluid flowing out during delivery is >2000ml.

3. Impact on mother and fetus

Pregnant women with polyhydramnios are prone to complications of pregnancy-induced hypertension, premature delivery, premature rupture of membranes, and abnormal fetal position. Placental abruption and umbilical cord prolapse are prone to occur when membranes rupture. Postpartum hemorrhage is easily associated with childbirth.