Intertwin discordance in fetal size at 11-13  weeks' gestation and pregnancy outcome.

CONCLUSIONS: In both DC and MCDA twin pregnancies increased CRL discordance is associated with increased risk of fetal death at <20 and <24 weeks' gestation, perinatal death at ≥24 weeks, preterm birth at <37 and <32 weeks, birth of at least one SGA neonate and birth weight discordance ≥20% and ≥25%, but CRL discordance is a poor screening test for adverse pregnancy outcome. However, in DC twins CRL discordance of ≥15% is associated with increased risk of fetal loss at <20 weeks' gestation and in MCDA twins CRL discordance of ≥10%, and more so discordance of ≥15% and ≥20%, is associated with a very high risk of fetal loss or endoscopic laser surgery at <20 weeks and this information is useful in counselling women and defining the timing for subsequent assessment and possible intervention. This article is protected by copyright. All rights reserved. PMID: 31710737 [PubMed - as supplied by publisher]
Source: The Ultrasound Review of Obstetrics and Gynecology - Category: Radiology Authors: Tags: Ultrasound Obstet Gynecol Source Type: research