scholarly journals P44.14: Jarcho-Levin Syndrome: second and first trimester ultrasound features

2007 ◽  
Vol 30 (4) ◽  
pp. 621-622 ◽  
Author(s):  
M. Herrera ◽  
M. Rebolledo ◽  
M. Beltran
Keyword(s):  
First Trimester ◽  
First Trimester Ultrasound ◽  
Ultrasound Features

scholarly journals Early prenatal diagnosis of parapagus conjoined twins

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Ângela Melo ◽  
Rita Dinis ◽  
António Portugal ◽  
Ana Isabel Sousa ◽  
Isabel Cerveira
Keyword(s):  
Monozygotic Twins ◽  
Primitive Streak ◽  
First Trimester ◽  
Conjoined Twins ◽  
Pathological Findings ◽  
Live Births ◽  
Thoracic Level ◽  
The Family ◽  
First Trimester Ultrasound ◽  
Ultrasound Features

Conjoined twinning occurs in 1/100 of monozygotic twins, 1/50,000 gestations and 1/250,000 live births. It is the consequence of a division event at the primitive streak stage of the human embryonic development, about 13-14 days after fertilisation, in monochorionic monoamniotic gestations. A healthy pregnant woman, Gravida 2 Para 1, was admitted into our Fetal Medicine Unit to perform the first trimester ultrasound. A diagnosis of conjoined parapagus twinning based on ultrasound features was made at 11 weeks of gestation, and the couple decided to terminate the pregnancy. The ultrasound showed two independent skulls and hearts, a shared spine below the thoracic level, and a shared stomach. The pathological findings were slightly different, showing two independent stomachs draining into a common duodenum. The karyotype was 46 XY. Early prenatal ultrasound may provide a window to counsel the family and to offer an early termination of pregnancy.

Crown–rump length measurement: a new age for first‐trimester ultrasound?

2021 ◽  
Author(s):  
J. Stirnemann ◽  
M. Massoud ◽  
N. Fries ◽  
C. Dumont ◽  
G. Haddad ◽  
...  
Keyword(s):  
First Trimester ◽  
New Age ◽  
Length Measurement ◽  
Crown Rump Length ◽  
First Trimester Ultrasound

415: The utility of first trimester ultrasound for women with a negative free fetal DNA

2015 ◽  
Vol 212 (1) ◽  
pp. S216-S217
Author(s):  
Emily Reiff ◽  
Bryann Bromley ◽  
Lori Dobson ◽  
Sarah Little
Keyword(s):  
First Trimester ◽  
Fetal Dna ◽  
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.

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