Early Growth Delay in Pregnancy A Critical Clue to Detecting Triploidy in the First Trimester

Introduction

Main Study Highlights

  • Triploidy affects approximately 1% of all human conceptions, often leading to miscarriage in the first trimester.
  • The patient in this case presented a growth delay at 9 weeks, confirmed with ultrasound-measured crown-rump length (CRL).
  • Persistent discordance between gestational age based on LMP and CRL prompted further genetic investigation.
  • Chorionic villus sampling (CVS) confirmed triploidy (69XXX) as the underlying cause.
  • Structural abnormalities like a two-vessel umbilical cord and absent kidney became apparent in follow-up scans, further indicating fetal anomalies.
  • The study concludes that first trimester CRL discordancy should not be dismissed as mere dating errors—early detection can be life-saving.

Further Reading and Resources

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