Mothers with acute and chronic postpartum psychoses and impact on the mother-infant interaction.

Background: Maternal postpartum psychoses pose a serious risk to the mother-infant interaction. It is unclear how different subtypes of postpartum psychosis, including acute and chronic, might differentially affect the mother-infant interaction.

Method: A systematic search of electronic journal databases was performed.

Results: This systematic review yielded 17 studies with adequate overall study quality. They focused on child custody and involvement of social services as indirect indicators of the mother-infant interaction, observed mother-infant interactions as direct indicators, or potential transitional mechanisms, including memory processing, mind-mindedness, and affect recognition, that may partially explain the effects of psychotic disorders. An acute onset of psychosis during the postpartum period (de novo or relapse) was typically related to better mother-infant interactions. Mothers with schizophrenia have the highest risk of child displacement, and interventions by social services were more likely. However, mothers with postpartum schizophrenia did not exhibit more harm to the child or self-harm than mothers with postpartum depression. Heterogeneity of methodology, case definitions, and assessments characterized the studies; hence, they were not pooled.

Conclusions: In addition to evaluating social risk factors in patients with acute onset and chronic psychoses during the postpartum period, negative preconceptions about motherhood and schizophrenia have to be carefully examined. Clinical research on postpartum psychoses should consider the onset criteria, prevalence of self-harm or harm to the child, significance of specific (e.g., religious) delusions and expressed hostility toward the child. More studies on the impact of first-onset (de novo) postpartum psychoses on the mother-infant interaction are needed.