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Ultrasound During Late Third Trimester Detects Missed Fetal Abnormalities

by Colleen Fleiss on Oct 10 2019 12:16 AM

Late third trimester ultrasound was found to detect missed fetal abnormalities, revealed a new study. In one in 200 women a fetal anomaly was detected for the first time in the third trimester.

Ultrasound During Late Third Trimester Detects Missed Fetal Abnormalities
In one in 200 women who had undergone a first and/or second trimester ultrasound examination, a fetal anomaly was detected for the first time in the third trimester, stated study published in Ultrasound in Obstetrics & Gynecology that involved more than 50,000 pregnancies.
Most of the fetal abnormalities (68%) seen at 35 to 37 weeks had already been diagnosed in the first and/or second trimester, and the incidence of abnormalities first seen at 35 and 37 weeks was 0.5%.

The study highlights the benefit of a late third trimester scan for detecting fetal abnormalities that were either missed in previous first and second trimester scans or became apparent only during the third trimester.

Source-Eurekalert


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