title: Persistent discordant twin growth following IVF-ET.
abstract: We observed persistent first trimester growth disparity in a twin pregnancy following IVF-ET. The crown-rump length of the two fetuses was substantially different at 7 and 11 weeks and from the 20th week discordant growth was observed by intertwin differences in abdominal circumferences and estimated fetal weights. Birth weight discordance was 26.6% (1600/2180). This is apparently the first documentation of first trimester growth discordance persisting throughout pregnancy.
authors.affiliation: Department of Obstetrics and Gynecology, Chaim Sheba Medical Center, Tel-Hashomer, Israel.
authors.forename: R
authors.initials: R
authors.lastname: Ahiron
authors.forename: I
authors.initials: I
authors.lastname: Blickstein
mesh_terms: D000328:Adult; D004624:Embryo Transfer / Q000379:methods; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D007231:Infant, Newborn; D007236:Infant, Small for Gestational Age; D011247:Pregnancy; D014427:Twins; D016216:Ultrasonography, Prenatal