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BJOG. 2015 Jun;122(7):924-31. doi: 10.1111/1471-0528.13345. Epub 2015 Mar 6.

Is the probability of prenatal diagnosis or termination of pregnancy different for fetuses with congenital anomalies conceived following assisted reproductive techniques? A population-based evaluation of fetuses with congenital heart defects.

Author information

1
Inserm UMR 1153, Equipe de recherche en Epidémiologie Obstétricale, Périnatale et Pédiatrique (EPOPé), Centre de Recherche Epidémiologie et Statistique Sorbonne Paris Cité DHU Risques et grossesse, Université Paris Descartes, Paris, France.
2
Centre Pluridisciplinaire de Diagnostic Prénatal de l'Est Parisien, Pôle de périnatalité, Hôpital Trousseau, Paris, France.
3
Maternité Port Royal, Hôpital Cochin, Hôpitaux Paris Centre, Assistance Publique Hôpitaux de Paris, Paris, France.

Abstract

OBJECTIVE:

To compare the probability of prenatal diagnosis (PND) and termination of pregnancy for fetal anomaly (TOPFA) between fetuses conceived by assisted reproductive techniques (ART) and spontaneously-conceived fetuses with congenital heart defects (CHD).

DESIGN:

Population-based observational study.

SETTING:

Paris and surrounding suburbs.

POPULATION:

Fetuses with CHD in the Paris registry of congenital malformations and cohort of children with CHD (Epicard).

METHODS:

Comparison of ART-conceived and spontaneously conceived fetuses taking into account potential confounders (maternal characteristics, multiplicity and year of birth or TOPFA).

MAIN OUTCOME MEASURES:

Probability and gestational age at PND and TOPFA for ART-conceived versus spontaneously conceived fetuses.

RESULTS:

The probability of PND (28.1% versus 34.6%, P = 0.077) and TOPFA (36.2% versus 39.2%, P = 0.677) were not statistically different between ART-conceived (n = 171) and spontaneously conceived (n = 4620) fetuses. Estimates were similar after adjustment for potential confounders. Gestational age at PND tended to be earlier for ART fetuses (23.1 versus 24.8 weeks, P = 0.05) but no statistical difference was found after adjustment for confounders. Gestational age at TOPFA was comparable between ART-conceived and spontaneously conceived fetuses.

CONCLUSIONS:

In our population, ART conception was not significantly associated with the probability of PND or TOPFA for CHD. One implication of our results is that live births may be adequate for assessing the overall risk of CHD related to ART. However, total prevalence, in particular of severe CHD, would not be adequately assessed if TOPFA are not included.

KEYWORDS:

Assisted; congenital; epidemiology/population-based; heart defects; prenatal diagnosis; reproductive techniques; termination of pregnancy for fetal anomaly

PMID:
25752912
DOI:
10.1111/1471-0528.13345
[Indexed for MEDLINE]
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