Patient's question:
The fetal biparietal diameter is 58, the femur length is 40, the abdominal circumference is 174, the fetal heart rate is 142 beats per minute, the amniotic fluid depth is 54, the placental thickness is 24, and the placenta is attached to the right posterior wall of the uterus, grade 0-1. Other: The fetal skull has a strong echo ring, the midline of the brain is central, there is no significant expansion of the lateral ventricles, the spinal echo spacing shows no significant widening, the four-chamber heart is visible, there is no significant defect in the abdominal wall echo, and the bilateral femurs, tibiofibulae, fibulae, and radial bones are partially not visible due to sound transmission or position reasons.Doctor's answer:
Analysis of the condition: Generally, the umbilical cord of a fetus has two umbilical arteries and one umbilical vein. However, if the fetus has only one umbilical artery, it is called a single umbilical artery. This phenomenon is relatively rare in humans, and its mechanism of occurrence has not been fully elucidated. The clinical significance is still under research. It is generally believed that a single umbilical artery is one of the markers of fetal abnormal development. However, the presence of only a single umbilical artery does not indicate fetal developmental abnormalities or chromosomal abnormalities.Recommendations: A single umbilical artery is included in the ultrasound examination due to risk factors and probabilities. It does not mean that a baby with a single umbilical artery has issues. The vast majority of babies born with a single umbilical artery are normal. The only concern with a single umbilical artery fetus is that it has a higher chance of abnormalities compared to a twin umbilical artery. If your ultrasound results are normal, the risk is the same as that of a normal fetus.