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Question
Hello doctor,
I am pregnant at 34 weeks, when the ultrasound showed PI: 0.84 . The sonographer said that the fetus is smaller than the standard, can you advise me on how the PI will affect the fetus?
Nguyen Huynh Minh Thu (1993)
Answer
Answered by Doctor Nguyen Thi Minh Huyen - Obstetrician and Gynecologist - Department of Obstetrics and Gynecology - Vinmec Nha Trang International Hospital
Hello,
With the question “How does PI affect the fetus? ", the doctor would like to answer as follows:
PI is the pulse index when performing doppler vascular ultrasound of the umbilical artery, the middle cerebral artery of the fetus to assess the fetal growth status and assess fetal health. You only said PI 0.84 but did not say which artery, so the doctor could not give specific advice.
If the ultrasound result of the middle cerebral artery has a PI of 0.84, it means the index is reduced for gestational age. At that time, also note the placental brain index (CPR) to assess whether the fetus is hypoxic in the brain. With a 34-week pregnancy, if there is a change in the doppler indexes above, the fetus will be classified as a group that needs to be closely monitored.
If you do not fully understand your pregnancy problem, you should go to a large obstetric center to have an ultrasound to re-evaluate the necessary doppler indexes, evaluate the estimated weight of the fetus to see the growth rate. Whether fetal growth is decreased, and at the same time combined with monitoring to prevent the case of "delayed fetal growth. can lead to bad outcomes such as stillbirth, brain hypoxia, metabolic acidosis, and postnatal effects on the brain, nerves,...
If you still have questions about the PI Index, , you can go to a hospital under Vinmec Health System for further examination and advice.
Please dial HOTLINE for more information or register for an appointment HERE. Download MyVinmec app to make appointments faster and to manage your bookings easily.
