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34 weeks pregnant. Ultrasound shows notch in early diastole. Meaning?

Hi I am 34 weeks and 2 days pregnant. My ultrasound indicates left uterine artery shows a notch in early diastole with mildly increased impedance to flow with RI of 0.65. Can you please confirm what it means and if I should be concerned for the same. My bp and growth of the baby have been fine and pregnancy has been uneventfull till now.
Asked On : Mon, 22 Apr 2013
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OBGYN 's  Response
Mar 2013
Thank you for your query.
The uterine artery carries the blood flow to the pregnant uterus.
Resistance to the blood flow indicates that there is slight obstacle in blood flow to the uterus, and hence to the baby.
Diastolic notching indicates an early problem in this regard.
It could be due to placental pathology or maternal diseases like hypertension, diabetes etc.
If the resistance increases, then the baby is at risk of compromise, and you might be scheduled for an elective cesarean section.
Your obstetrician would monitor the baby with serial colour dopplers.
Take care.
Answered: Tue, 23 Apr 2013
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