Journal
JMIR RESEARCH PROTOCOLS
Volume 11, Issue 3, Pages -Publisher
JMIR PUBLICATIONS, INC
DOI: 10.2196/33363
Keywords
pregnancy; serotonergic medications; antidepressants; stress regulation; systematic review; meta-analysis
Funding
- Vanier Canada Graduate Scholarship from the Canadian Institutes of Health Research (CIHR)
- University of British Columbia Killam Doctoral Scholarship
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This study aims to assess the impact of prenatal exposure to serotonergic antidepressants on stress regulation in children. Various physiological indices, such as cortisol levels and heart rate variability, will be evaluated to determine the effects of these drugs on children. The results of this assessment will inform decisions about using these medications during pregnancy.
Background: Up to 20% of mothers experience antenatal depression and approximately 30% of these women are treated with serotonergic psychotropic pharmacological therapy during pregnancy. Serotonergic antidepressants readily cross the placenta and the fetal blood-brain barrier, altering central synaptic serotonin signaling and potentially altering serotonin levels in the developing fetal brain. Objective: The aim of this study is to assess the impact of prenatal exposure to serotonergic antidepressants, accounting for maternal mood disturbances, on markers of stress regulation during childhood. Methods: We will follow PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines and will search MEDLINE, Embase, CINAHL, PsycINFO, and ClinicalTrials.gov for full-length studies that assessed physiological (eg, cortisol level, heart rate variability, salivary amylase, pupillary size, C-reactive protein) indices of stress regulation in children of pregnant people who were treated with a serotonergic antidepressant at any point during pregnancy. We will assess the quality of observational studies using the Newcastle-Ottawa Scale and the quality of experimental studies using the Cochrane risk-of-bias tool. When possible, we will conduct a random-effects meta-analysis. If meta-analysis is not possible, we will conduct a narrative review. If a sufficient number of studies are found, we will perform subgroup analysis and assess outcomes measured by drug class, dose, trimester of exposure, and child's age and gender. Results: We registered our review protocol with PROSPERO (International Prospective Register of Systematic Reviews; CRD42021275750), completed the literature search, and initiated title and abstract review in August 2021. We expect to finalize this review by April 2022. Conclusions: Findings should identify the impact of prenatal antidepressant effects on stress regulation and distinguish it from the impact of prenatal exposure to maternal mood disturbances. This review should inform decisions about serotonergic antidepressant use during pregnancy.
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