Evaluation of prenatal diagnosis of congenital heart disease in a regional controlled case study.

Abstract:

AIMS:This study evaluated the evolution of the prenatal diagnosis of congenital heart disease (CHD) between 2003 and 2008 and its repercussion for the CHD prevalence rate at birth in a well-defined population (Canton of Vaud, Switzerland). METHODS AND RESULTS:All 572 cases of CHD reported in the Eurocat Registry of Vaud-Switzerland between 1.5.2003 and 31.12.2008 were analysed and compared with the cases in our clinical database. CHD cases were divided into five different groups according to heart disease severity. The prenatal detection rates increased significantly between 2003 and 2008, with a mean detection rate of 25.2%. There was a significantly higher rate of prenatal diagnosis in the first four groups of CHD severity, with the highest detection rate (87.5%) found in the group with the most severe CHD (group 1). In this group, 85.7% of cases resulted in a termination of pregnancy, and there was a consequent 75% reduction in the prevalence of severe major cardiac malformation at birth. Detection rates were 66% in group 2, 68.6% in group 3, and the lowest in groups 4 and 5, with rates of 25.9% and 12.9%, respectively. CONCLUSION:This study shows that the prenatal detection rate for CHD increased in a well-defined population over the study period. Prenatal diagnosis thus has had a major impact on patients with the most severe types of CHD and has resulted in a significant reduction in severe CHD at birth.

journal_name

Swiss Med Wkly

journal_title

Swiss medical weekly

authors

Rossier MC,Mivelaz Y,Addor MC,Sekarski N,Meijboom EJ,Vial Y

doi

10.4414/smw.2014.14068

subject

Has Abstract

pub_date

2014-12-04 00:00:00

pages

w14068

eissn

1424-7860

issn

1424-3997

pii

smw-14068

journal_volume

144

pub_type

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