Determination of chorionicity in twin gestations by high-frequency abdominal ultrasonography: counting the layers of the dividing membrane

Article Abstract:

High-frequency ultrasound imaging appears to be a promising technique for detecting whether twins are identical or fraternal. Researchers counted the number of layers in the membranes in 63 twin pregnancies as viewed with high-frequency ultrasound between 13 and 38 weeks gestation. Diagnosis is important when one twin dies in the womb or has a severe anomaly and selective abortion is under consideration. Microscopic analysis of the placentas confirmed predictions after birth. Predictions were correct in 60 cases. All fraternal twin pairs were correctly identified, and three fraternal pairs were misidentified as identical twins.

Fetus, Prenatal ultrasonography, Ultrasonics in obstetrics

---

Is size discordancy an indication for delivery of preterm twins?

Article Abstract:

Preterm delivery on the sole basis of size discordancy in twins may not decrease the risk of death or complications in the smaller twin when other testing is normal and there is no growth restriction. The outcome of 42 sets of twins with weight discrepancies of greater than or equal to 20% was compared to 77 sets of twins of similar weight. Discordant twins had longer hospital stays, but delivery before 32 weeks of gestational age and birth weights under 2,000 grams were more strongly associated with a poor outcome than size discrepancy.

Health aspects, Methods, Infants (Premature), Premature infants, Body size, Body weights and measures, Childbirth, Delivery (Childbirth)

---

Positive predictive value of suspected growth aberration in twin gestations

Article Abstract:

It may be unnecessary to give women pregnant with twins an ultrasound scan every 2 to 4 weeks. In a study of 903 women with a twin pregnancy, 6 to 14 weeks went by before a fetal growth abnormality was detected after a previously normal ultrasound scan. The scan best predicted fetal growth restriction when it was done at 20 to 24 weeks' gestation.

Evaluation, Ultrasound imaging, Medical examination, Pregnant women

Similar abstracts:

• Abstracts: The significance of transvaginal ultrasonographic evaluation of the cervix in women treated with emergency cerclage
• Abstracts: Information for patients having bladder augmentation. A weight of her shoulders
• Abstracts: The efficacy of Marlex mesh in the repair of severe, recurrent vaginal prolapse of the anterior midvaginal wall

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.