scholarly journals Sensitivity of first-trimester ultrasound in the detection of congenital anomalies in twin pregnancies: population study and systematic review

2016 ◽  
Vol 95 (12) ◽  
pp. 1359-1367 ◽  
Author(s):  
Francesco D'Antonio ◽  
Alessandra Familiari ◽  
Basky Thilaganathan ◽  
Aris T. Papageorghiou ◽  
Lamberto Manzoli ◽  
...  
Keyword(s):  
Systematic Review ◽  
Population Study ◽  
Congenital Anomalies ◽  
First Trimester ◽  
Twin Pregnancies ◽  
First Trimester Ultrasound

When diamniotic twins suddenly become monoamniotic twins: spontaneous septostomy of the dividing membrane

2021 ◽  
Vol 14 (7) ◽  
pp. e243513
Author(s):  
Angela Vidal ◽  
Cristina Nastasia ◽  
Markus Hodel ◽  
Joachim Kohl
Keyword(s):  
Twin Pregnancy ◽  
Rare Condition ◽  
First Trimester ◽  
Sonographic Diagnosis ◽  
Sudden Failure ◽  
Reliable Diagnosis ◽  
Accepted Standard ◽  
Perinatal Management ◽  
Twin Pregnancies ◽  
First Trimester Ultrasound

In twin pregnancies, amnionicity and chorionicity are crucial as they strongly determine prenatal and perinatal management. First trimester ultrasound allows a highly reliable diagnosis of amnionicity and chorionicity, making it an internationally accepted standard in antenatal care. However, in rare cases, amnionicity can change from diamniotic to monoamniotic throughout pregnancy, substantially impacting perinatal management. We report the case of a confirmed monochorionic diamniotic twin pregnancy with a diagnosis of spontaneous septostomy of the dividing membrane (SSDM) at 28 weeks of gestation, resulting in a pseudomonoamniotic pregnancy. Even though SSDM is a rare condition and its sonographic diagnosis might be challenging, it should be considered if, in a known diamniotic pregnancy, there is a sudden failure to visualise the intertwin membrane truly separating both twins.

scholarly journals Accuracy of first-trimester ultrasound in diagnosis of tubal ectopic pregnancy in the absence of an obvious extrauterine embryo: systematic review and meta-analysis

2015 ◽  
Vol 47 (1) ◽  
pp. 28-37 ◽  
Author(s):  
A. Richardson ◽  
I. Gallos ◽  
S. Dobson ◽  
B. K. Campbell ◽  
A. Coomarasamy ◽  
...  
Keyword(s):  
Systematic Review ◽  
Ectopic Pregnancy ◽  
Meta Analysis ◽  
First Trimester ◽  
Tubal Ectopic Pregnancy ◽  
First Trimester Ultrasound

scholarly journals Accuracy of first-trimester ultrasound in the diagnosis of early embryonic demise: a systematic review

2011 ◽  
Vol 38 (5) ◽  
pp. 489-496 ◽  
Author(s):  
Y. Jeve ◽  
R. Rana ◽  
A. Bhide ◽  
S. Thangaratinam
Keyword(s):  
Systematic Review ◽  
First Trimester ◽  
First Trimester Ultrasound

OP11.02: Sensitivity of first trimester ultrasound in detecting fetal structural malformations in twin pregnancies

2014 ◽  
Vol 44 (S1) ◽  
pp. 93-93
Author(s):  
F. D'Antonio ◽  
M. Morlando ◽  
A. Khalil ◽  
A.T. Papageorghiou ◽  
B. Thilaganathan ◽  
...  
Keyword(s):  
First Trimester ◽  
Twin Pregnancies ◽  
First Trimester Ultrasound

360: Does first-trimester ultrasound predict obstetrical and neonatal outcomes in monochorionic diamniotic twin pregnancies?

2013 ◽  
Vol 208 (1) ◽  
pp. S159
Author(s):  
Baraa Allaf ◽  
Ali Ozhand ◽  
Sina Haeri ◽  
Joseph Wax ◽  
Anthony Vintzileos ◽  
...  
Keyword(s):  
First Trimester ◽  
Neonatal Outcomes ◽  
Twin Pregnancies ◽  
First Trimester Ultrasound

Two Corpora Lutea Seen at 6–13 Weeks' Gestation Infers Dizygosity Among Spontaneous Same-Sexed Dichorionic Twins

2009 ◽  
Vol 12 (2) ◽  
pp. 180-182 ◽  
Author(s):  
Jean Woo ◽  
Stephen Tong ◽  
Megan J. Campbell ◽  
Leanne Wallace ◽  
Simon Meagher ◽  
...  
Keyword(s):  
Microsatellite Markers ◽  
Corpus Luteum ◽  
Case Series ◽  
Monozygotic Twins ◽  
First Trimester ◽  
Corpora Lutea ◽  
Dna Genotyping ◽  
Twin Pregnancies ◽  
First Trimester Ultrasound

AbstractCurrent ultrasound techniques can accurately determine the chorionicity of twins, but not zygosity. We previously proposed that the zygosity of spontaneously conceived twins can be determined at early ultrasound, where 2 corpora lutea infers dizygosity, and 1 implies monozygosity. Here we did a case series, comparing zygosity predicted using this method with definitive DNA genotyping of twins after birth. We retrospectively identified 14 ultrasound reports of spontaneous twin pregnancies at 6(+0 days) to 13+6 weeks' gestation, where both ovaries were seen and the number of corpora lutea documented. We visited all twin pairs, obtained buccal smears, and determined zygosity by genotyping 9 independent microsatellite markers. All 8 cases where 2 corpora lutea were seen were dizygotic pregnancies. One further case where 3 corpora lutea were seen was also dizygotic. All 3 sets of monozygotic twins had 1 corpus luteum. There were 2 cases incorrectly assigned, where 1 corpus luteum was seen in dizygotic pregnancies. We conclude if 2 corpora lutea are seen at a first trimester ultrasound of spontaneously conceived dichorionic twins, they appear to be almost certainly dizygotic. However, if 1 corpus luteum is seen in dichorionic twins, zygosity cannot be determined with certainty since it is either monozygotic, or dizygotic where a second corpus luteum has been missed.

scholarly journals First trimester ultrasound for the detection of fetal heart anomalies: A systematic review and meta‐analysis

2021 ◽  
Author(s):  
J. N. Karim ◽  
E. Bradburn ◽  
N. Roberts ◽  
A. T. Papageorghiou ◽  
Aris T. Papageorghiou ◽  
...  
Keyword(s):  
Systematic Review ◽  
Fetal Heart ◽  
Meta Analysis ◽  
First Trimester ◽  
First Trimester Ultrasound
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