Reversed A wave is a ductus venosus waveform. The reversed A wave between 16 to 20 weeks of gestation is associated with an increased risk of trisomy 21, gestational diabetes mellitus (GDM), and preeclampsia. When further prospective studies confirm its benefit, then DVD interrogation for trisomy 21 may be extended up to 20 weeks of gestation.
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What does reverse A wave indicate in Doppler?
Query: Hi doctor, I am pregnant with MCMA twins. We have been told that one twin has a reversed A wave. What possible outcomes can this have for the twin? Please explain. Thank you. Read Full »
Answer: Hi, Welcome to icliniq.com. I read your query and can understand your concern. A reversed A wave in Doppler is associated with very high chance of trisomy in the baby. The genetic abnormalities associated with this maybe even fatal. Since monochorionic monoamniotic twins (MCMA twin) are usually mo... Read Full »
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