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C-1396 - Prenatal screening for fetal trisomie 18 and trisomie 13 in the second trimester

A. BenSalem1, A. Belaid1, O. Kermani2, A. Khalfalli1, W. Harzallah-Hizem1, H. Laajili1, C. Hafsa1; 1 Monastir/TN 2 sousse/TN Type: Educational Exhibit
Area of Interests: Obstetrics (Pregnancy / birth / postnatal period), Foetal imaging
Imaging Techniques: MR, Ultrasound
Procedure: Intrauterine diagnosis
Special Focuses: Fetus, Genetic defects
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Learning objectives: To determine the variety of the predominant appeal signs leading to referral and their accompanying features found during specialized ultrasound evaluation in foetuses with trisomy 13 and trisomy 18. To demonstrate interest of ultrsound and MRI in for prenatal diagnosis of trisomy 13 and trisom[...]

Background: Every baby has a small chance of having a chromosomal or genetic condition. Prenatal screening for some chromosomal and genetic conditions is offered in maternity care to provide the pregnant woman with more information about her unborn baby. All such testing should be voluntary and only undertaken [...]

Findings and procedure details: Retrospective study of cases of foetuses with trisomie 13 and 18 detected during specialized echographic evaluation in the second trimester of pregnancy. We evaluated the predominant signs leading to referral, the difference and overlap in presenting signs between both syndromes and when the data we[...]

Conclusion: Trisomy 13 as well as trisomy 18 are typified by a number of various malformations in the foetus.. Most referrals were made during the second trimester of pregnancy. A small amount of malformations were discovered later in pregnancy. The most common ultrasound features in our study population were[...]

Personal information:

References: 1)Bundy AL, Slatzman DH, Pober B, et al. Antenatal Sonographic findings in Trisomy 18. J Ultrasound Med. 1986;5:361–364. 2)Shields LE, Carpenter LA, Smith KM, et al. Ultrasonographic diagnosis of trisomy 18: is it practical in the early second trimester? J Ultrasound Med. 1998;17:327–[...]

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