Document Detail


Fetal nuchal translucency and prenatal diagnosis of beta-thalassaemia.
MedLine Citation:
PMID:  10451523     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In Sardinia, fetal karyotyping for couples at risk for beta-thalassaemia is offered only to women >/=35 years and for specific risk of chromosomopathies. This policy is not easily accepted by the couples who incessantly request additional karyotyping. In order to select those at highest risk of chromosomal abnormalities among young women, fetal nuchal translucency (NT) thickness measurement was performed in 510 fetuses to assess the chromosomal risk before chorionic villus sampling. A risk >/=1/100 was judged positive and worthy of additional karyotyping. 126 cases interrupted the pregnancy after a result of homozygous beta-thalassaemia, hence 384 pregnancies were included in the study. 22 (5.7 per cent) fetuses were found NT positive. A total of three chromosomal abnormalities were detected. The NT test was positive in all three cases of chromosomopathies detected (100 per cent) and in 19 of 381 (4.98 per cent) normal karyotype fetuses. No features of major chromosomal abnormalities were reported among the newborns whose NT had resulted normal. These preliminary results have confirmed the efficacy of NT testing to assess the risk of trisomy 21 and other chromosomopathies and enhanced its utility in pregnancies already suited to sampling in the first-trimester for Mendelian disorders.
Authors:
G Monni; R M Ibba; M A Zoppi; M Putzolu; M Floris; A Cao
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Prenatal diagnosis     Volume:  19     ISSN:  0197-3851     ISO Abbreviation:  Prenat. Diagn.     Publication Date:  1999 Aug 
Date Detail:
Created Date:  1999-11-09     Completed Date:  1999-11-09     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8106540     Medline TA:  Prenat Diagn     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  758-60     Citation Subset:  IM    
Copyright Information:
Copyright 1999 John Wiley & Sons, Ltd.
Affiliation:
Department of Obstetrics and Gynaecology, Prenatal and Preimplantation Genetic Diagnosis, Ospedale Regionale per le Microcitemie, Cagliari, Sardinia, Italy. dmonn@tin.it
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MeSH Terms
Descriptor/Qualifier:
Adult
Chromosome Aberrations / embryology,  ultrasonography
Chromosome Disorders
Female
Fetal Diseases / embryology,  ultrasonography*
Humans
Predictive Value of Tests
Pregnancy
Pregnancy Trimester, First
Ultrasonography, Prenatal*
beta-Thalassemia / embryology,  ultrasonography*

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