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Placenta-related complications in women carrying a foetus with congenital heart disease

Aina Ruiz¹, Queralt Ferrer², Olga Sánchez^3,4

¹a Department of Obstetrics, Maternal-Foetal Medicine Unit , Vall d'Hebron University Hospital, Universitat Autònoma De Barcelona , Barcelona , Spain .

The Journal of Maternal-Fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians

|January 9, 2016

Introduction:

Recent studies pointed to an intrinsically angiogenic imbalance in CHD in the maternal and foetal circulation suggestive of impaired placentation.

Objectives:

To assess whether pregnant women with a CHD foetus are at greater risk of placenta-related complications.

Methods:

Perinatal results of women with a CDH foetus were compared with those of a non-selected population followed up at our centre. Multiple pregnancies and chromosomal abnormalities were excluded from the analysis.

Results:

About 279 pregnancies with CHD foetuses were included. Mothers were classified in three groups according to the foetal cardiac defect: 104 (37.3%) atrioventricular defect, 102 (36.5%) conotruncal anomalies and 73 (26.2%) left-ventricular outflow tract obstruction. A significantly higher incidence of pre-eclampsia was observed in the CHD group compared with the normal population (5.7% versus 1.2% p < 0.0001) [OR 5.96 (95% CI - 3.19-10.54)]. About 9.7% of foetuses with CHD had < 3rd birth weight percentile compared with 3% for the normal population [OR 3.32 (95% CI - 2.39-4.56)]. A higher incidence of stillbirth was also observed in the CHD group compared with the normal population (2.5% versus 0.4%) [OR 9.45 (95% CI - 3.35-23.3)].

Conclusions:

Women carrying a foetus with CHD have a high risk of pre-eclampsia and intrauterine growth restriction. The relationship between CHD and placenta-related complications could be an encouraging topic for future research.

Keywords:

Congenital heart defects intrauterine growth restriction pre-eclampsia

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