Document Detail


Limitations of using first-trimester nuchal translucency measurement in routine screening for major congenital heart defects.
MedLine Citation:
PMID:  11251916     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To evaluate the effectiveness of nuchal translucency (NT) measurement in screening for major congenital heart disease (CHD) in chromosomally normal fetuses. DESIGN: A population based cohort study of all women having fetal NT measurement at 10-14 weeks of gestation in an unselected population over a 3-year period. The outcome measure was the identification of major CHD in chromosomally normal pregnancies either antenatally or postnatally. RESULTS: Major defects of the heart and great arteries were identified in 26 out of 7339 pregnancies (prevalence 3.5 per 1000 pregnancies). Out of 26 cases, only four (sensitivity 15.4%, 95% CI 4-35) were in the group of 258 pregnancies (3.5%) with increased NT of > or = 2.5 mm. The prevalence of major CHD increased from 3.1 per 1000 for NT < 2.5 mm to 50 per 1000 for NT > or = 3.5 mm (likelihood ratio of 14.1, 95% CI 4.2-47.9). The positive and negative predictive values for NT > or = 2.5 mm were 1.6% and 99.7%, respectively. CONCLUSIONS: The prevalence of major CHD in this study was 3.5 per 1000, suggesting that ascertainment of CHD in our study population was thorough. Fetuses with NT measurements > or = 3.5 mm have a significantly increased risk of major CHD, and this identifies a subgroup of high-risk patients in whom early fetal echocardiography would be advocated. The low sensitivity of NT for major CHD in the general population, however, indicates that NT cannot be relied on as the sole or major screening tool for this condition as previously reported.
Authors:
E Mavrides; F Cobian-Sanchez; A Tekay; G Moscoso; S Campbell; B Thilaganathan; J S Carvalho
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology     Volume:  17     ISSN:  0960-7692     ISO Abbreviation:  Ultrasound Obstet Gynecol     Publication Date:  2001 Feb 
Date Detail:
Created Date:  2001-03-19     Completed Date:  2001-05-17     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  9108340     Medline TA:  Ultrasound Obstet Gynecol     Country:  England    
Other Details:
Languages:  eng     Pagination:  106-10     Citation Subset:  IM    
Affiliation:
Fetal Medicine Unit, St George's Hospital Medical School, Academic Department of Obstetrics and Gynaecology, London, UK.
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MeSH Terms
Descriptor/Qualifier:
Adult
Female
Fetal Diseases / ultrasonography*
Heart Defects, Congenital / ultrasonography*
Humans
Karyotyping
Neck / embryology*
Predictive Value of Tests
Pregnancy
Pregnancy Trimester, First
Comments/Corrections
Comment In:
Ultrasound Obstet Gynecol. 2001 Feb;17(2):99-101   [PMID:  11251914 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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