Assisted reproductive technologies and the risk of stillbirth in singleton pregnancies: a systematic review and meta-analysis

This is a systematic review and meta-analysis comparing stillbirth risk following in vitro fertilization or intracytoplasmic sperm injection to that of spontaneous conception. In conclusion, the treatments increase this risk.

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VOLUME 116, ISSUE 3, P784-792

Authors:

Karoline Gundersen Sarmon, M.D., Troels Eliasen, M.D., Ulla Breth Knudsen, Ph.D., Bjørn Bay, M.D.

Abstract:

Objective

To identify the risk of stillbirth from in vitro types of assisted reproductive technologies compared with spontaneous conception (SC), limited to singleton births.


Design

Systematic literature search and search chaining on online databases: PubMed, Embase, and Scopus.


Setting

Not applicable.


Patient(s)

Singleton pregnancies from in vitro fertilization (IVF) or fertilization by IVF and intracytoplasmic sperm injection (IVF-ICSI).


Intervention(s)

Not applicable.


Main Outcome Measure(s)

Adjusted odds ratio for stillbirth or prevalence of stillbirth in case–control groups of IVF/IVF-ICSI singletons and SCs, respectively, in matched studies.


Result(s)

A total of 19 studies were included, and study quality was mixed. Ten studies qualified for inclusion to the meta-analysis, which revealed a significantly increased risk of stillbirth in IVF/IVF-ICSI compared with that in SC (odds ratio [95% confidence interval]: 1.82 [1.37–2.42]), and there was no evidence of publication bias.


Conclusion(s)

In vitro fertilization and IVF-ICSI treatment increases the risk of stillbirth compared with natural conception.


Clinical Trial Registration Number

PROSPERO 216768.

Fertility and Sterility

Editorial Office, American Society for Reproductive Medicine

Fertility and Sterility® is an international journal for obstetricians, gynecologists, reproductive endocrinologists, urologists, basic scientists and others who treat and investigate problems of infertility and human reproductive disorders.