Evaluation of Long-term Outcomes Associated With Preterm Exposure to Antenatal Corticosteroids: A Systematic Review

Kiran Ninan1,2, Sugee K Liyanage1, Kellie E Murphy3

  • 1Department of Obstetrics and Gynecology, McMaster University, Hamilton, Ontario, Canada.

JAMA Pediatrics
|April 11, 2022
PubMed

Insights

Antenatal corticosteroids reduced neurodevelopmental impairment in extremely preterm infants but increased risks for neurocognitive and behavioral issues in late-preterm and full-term children. Caution is advised for antenatal corticosteroid use.

Area of Science:

  • Obstetrics and Gynecology
  • Neonatology
  • Developmental Pediatrics

Background:

  • Antenatal corticosteroids are used to mature fetal lungs but long-term effects on children are not fully understood.
  • Animal studies suggest broad organ system impacts, necessitating human outcome evaluation.

Purpose of the Study:

  • To systematically review and meta-analyze long-term outcomes of antenatal corticosteroid exposure in children.
  • To compare outcomes in extremely preterm, late-preterm, and full-term infants.

Main Methods:

  • Systematic review and meta-analysis of RCTs, quasi-RCTs, and cohort studies (2000-2021).
  • Searched multiple databases including MEDLINE, Embase, PsycInfo, CINAHL, Web of Science, ClinicalTrials.gov, and Google Scholar.
  • Extracted data on neurodevelopmental, psychological, anthropometric, metabolic, and cardiorespiratory outcomes at ≥1 year.

Main Results:

  • 30 studies involving >1.25 million children were included.
  • Antenatal corticosteroids reduced neurodevelopmental impairment in extremely preterm infants (aOR 0.69).
  • Increased risk of neurocognitive/behavioral disorders in late-preterm (aHR 1.12) and full-term infants (aHR 1.47).

Conclusions:

  • Single-course antenatal corticosteroids benefit extremely preterm infants but pose risks for late-preterm and full-term infants.
  • Findings indicate a need for cautious administration of antenatal corticosteroids.
  • Further research into risk-benefit profiles across gestational ages is warranted.
Abstract

Related Concept Videos

Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches01:23

Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches

Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
186
Teratogenicity01:07

Teratogenicity

The ability of a drug to produce structural deformations and functional abnormalities in the developing embryo or the fetus is called teratogenicity, and the drug producing this effect is known as a teratogen. Teratogenic effects include stillbirth, miscarriage, intrauterine growth restriction, and neurocognitive delay. A teratogen may affect the embryo at different stages of development, which is important in determining the type and extent of the damage. During blastocyst formation, the early...
2.9K
COPD: Management Using Bronchodilators and Corticosteroids01:26

COPD: Management Using Bronchodilators and Corticosteroids

Chronic obstructive pulmonary isease (COPD) involves a group of progressive lung disorders characterized by persistent airflow limitation and chronic respiratory symptoms. Asthma-COPD Overlap Syndrome (ACOS), encompassing features of both asthma and Chronic obstructive pulmonary disease (COPD), is a group of progressive lung disorders that includes chronic bronchitis, emphysema, and refractory (non-reversible) asthma. ACOS leads to complex clinical presentations that combine the inflammatory...
431
Antiasthma Drugs: Inhaled Corticosteroids and Glucocorticoids01:25

Antiasthma Drugs: Inhaled Corticosteroids and Glucocorticoids

Inhaled corticosteroids (ICS) are anti-inflammatory drugs used primarily in treating persistent asthma and providing long-term maintenance. They target the bronchial mucosa, the lining of the airways, to control inflammation, a critical factor in asthma progression and exacerbation.
ICS work through a multifaceted mechanism of action. They suppress the inflammatory response caused by the proliferation of TH cells. They also reduce the transcription of the IL-2 gene, which is involved in the...
422
Regression Toward the Mean01:52

Regression Toward the Mean

Regression toward the mean (“RTM”) is a phenomenon in which extremely high or low values—for example, and individual’s blood pressure at a particular moment—appear closer to a group’s average upon remeasuring. Although this statistical peculiarity is the result of random error and chance, it has been problematic across various medical, scientific, financial and psychological applications. In particular, RTM, if not taken into account, can interfere when...
6.5K