[Obstetric and neonatal outcomes in pregnancies conceived by assisted reproductive technology in an Argentine cohort].

INTRODUCTION

Since its introduction in clinical practice in 1981, pregnancies conceived by assisted reproductive techniques (ART) are an increasing proportion of all pregnancies, presenting particular challenges.

OBJECTIVE

To analyze the maternal-fetal outcomes of pregnancies conceived by ART in a single center in Argentina. Material and methods: Retrospective cohort of pregnancies conceived by ART who attended their delivery in a private university hospital through a review of records.

RESULTS

The incidence of composite primary maternal outcome was 40,1% (282/703), with hypertensive disease of pregnancy (21%) being the most frequent presenting pathology.In the multivariate analysis, age > 40 (OR 2,79; 95%CI: 1,82-4,26), chronic hypertension (OR 10,59; 95% CI: 2,81-39,86), twin pregnancy (OR 8,94; 95% CI: 5,39 – 14,80) and oocyte donation (OR 1,54; 95% CI: 1,04 – 2,27) were significantly associated with the maternal primary outcome. The incidence of the composite neonatal fetal primary outcome was 56,7% (468/824), with a prematurity rate of 34,5% (252/803). In the multivariate analysis of the composite outcome of the neonatal fetus, twin pregnancy (OR 7,08; 95% CI: 3,48 – 14,39) and other complications related to prematurity were statistically significantly associated with the composite outcome.

CONCLUSIONS

Pregnancies conceived by ART show a significant increase in adverse maternal outcomes, mainly hypertension, and fetal and neonatal outcomes (prematurity, malformations, and admission to the intensive care unit).