Fetal Development Patterns in Pregnancies Affected by PCOS

Overview

This study investigates fetal growth in pregnancies affected by polycystic ovary syndrome (PCOS) and the role of assisted reproductive technology (ART). Findings indicate that PCOS fetuses exhibit significant growth restriction, particularly in spontaneous conceptions.

Background

Polycystic ovary syndrome (PCOS) is a prevalent endocrine disorder that can lead to adverse pregnancy outcomes, including fetal growth restriction. Understanding the dynamics of fetal growth in PCOS pregnancies is crucial. This study addresses the gap in knowledge regarding fetal growth trajectories in PCOS pregnancies, particularly in relation to ART.

Data Highlights

Key Findings

• PCOS fetuses showed reduced Z-scores for femur length and head circumference in the second trimester.
• Third-trimester deficits were noted in biparietal diameter and abdominal circumference for PCOS pregnancies.
• Birth length and weight Z-scores were lower in neonates from PCOS pregnancies.
• Growth restriction was observed only in spontaneous conceptions, with ART-conceived pregnancies showing no significant differences.
• Findings remained consistent after adjusting for gestational diabetes mellitus.

Clinical Implications

The study highlights the importance of considering conception methods in managing PCOS pregnancies.

Conclusion

Fetal growth restriction in PCOS pregnancies is evident from the second trimester and persists to delivery. Continued research is necessary to further understand these dynamics.

Related Resources & Content

1. Frontiers in Medicine, 2026 -- Investigation of trends, hot spots and effective therapies for pregnancy outcomes in polycystic ovary syndrome: a bibliometric analysis
2. The Journal of Clinical Endocrinology & Metabolism, 2023 -- Evaluating Patients: Navigating Diagnostic Obstacles in Polycystic Ovary Syndrome Assessment
3. The Journal of Clinical Endocrinology & Metabolism, 2023 -- Link Between Polycystic Ovary Syndrome and Pregnancy Outcomes in Gestational Diabetes Mellitus: Insights from a Secondary Analysis of the DiGest Study
4. Frontiers in Endocrinology — Non-linear saturation threshold of gonadotropin dose on cumulative live birth rates in advanced-age women with polycystic ovary syndrome: a retrospective cohort study
5. Recommendations From the 2023 International Evidence-based Guideline for the Assessment and Management of Polycystic Ovary Syndrome
6. Society for Maternal-Fetal Medicine Consult Series #52: Diagnosis and management of fetal growth restriction
7. Society for Maternal-Fetal Medicine Consult Series #60: Management of pregnancies resulting from in vitro fertilization
8. Growth Restriction in the Offspring of Mothers With Polycystic Ovary Syndrome | Pediatrics | JAMA Network Open | JAMA Network
9. Systematic review and meta-analysis of birth outcomes in women with polycystic ovary syndrome | Nature Communications
10. Frontiers | Adverse pregnancy and perinatal outcomes in women with polycystic ovary syndrome undergoing assisted reproductive technology: a systematic review and meta-analysis
11. Risk of Hypertensive Disorders in Pregnancy After Fresh and Frozen Embryo Transfer in Assisted Reproduction: A Population-Based Cohort Study With Within-Sibship Analysis - PubMed
12. Natural ovulation versus programmed regimens before frozen embryo transfer in ovulatory women: multicentre, randomised clinical trial | The BMJ