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Psychological and physiological stress: impact on preterm birth
Susan Gennaro1, Mary Dawn Hennessy
1School of Nursing, University of Pennsylvania, Philadelphia 19104-6096, USA. gennaro@nursing.upenn.edu
Journal of Obstetric, Gynecologic, and Neonatal Nursing : JOGNN
|October 21, 2003
Summary
This study explores how stress impacts preterm birth risk through hormonal changes, inflammation, and behavior. It proposes a model to understand this complex relationship and its implications for nursing.
Area of Science:
- Reproductive Health
- Psychoneuroimmunology
- Maternal-Fetal Medicine
Background:
- Stress is linked to hormonal changes (corticotropin-releasing hormone) and inflammation (cytokines).
- These physiological responses may increase uterine contractility and infection susceptibility.
- Behavioral changes due to stress can also contribute to adverse pregnancy outcomes.
Purpose of the Study:
- To propose a comprehensive model of the relationship between maternal stress and preterm birth.
- To critically evaluate existing research on stress and pregnancy outcomes.
- To discuss implications for nursing practice and future research.
Main Methods:
- Literature review and synthesis of existing research findings.
- Development of a theoretical model illustrating stress pathways to preterm birth.
- Analysis of research contradictions and identification of knowledge gaps.
Main Results:
- Contradictory findings exist regarding the direct impact of stress on preterm birth.
- Stress can influence preterm birth through biological (hormonal, inflammatory) and behavioral pathways.
- A unified model is needed to reconcile conflicting research and guide interventions.
Conclusions:
- Maternal stress is a significant, multifaceted risk factor for preterm birth.
- Further research is needed to validate the proposed model and refine nursing interventions.
- Understanding stress mechanisms is crucial for preventing preterm birth and improving maternal-child health outcomes.
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