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Early pregnancy failure as a training tool for chorionic villus sampling.

Sara Nicholas¹, Kelly Orzechowski, Sushma Potti

¹Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Thomas Jefferson University, PA, USA.

Prenatal Diagnosis

|August 6, 2013

Summary

Chorionic villus sampling (CVS) for early pregnancy failure (EPF) effectively trains maternal-fetal medicine (MFM) fellows. Most patients accepted the procedure, and CVS provided successful cytogenetic diagnosis for training and patient care.

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Area of Science:

Reproductive Medicine
Genetics
Medical Education

Background:

Early pregnancy failure (EPF) presents diagnostic and management challenges.
Maternal-fetal medicine (MFM) fellowship training requires proficiency in invasive procedures like chorionic villus sampling (CVS).

Discussion:

This study retrospectively reviewed a novel training program for MFM fellows using transcervical CVS in cases of EPF.
The procedure was offered to patients with EPF up to 13 weeks' gestational age, with informed consent and counseling on alternatives.
CVS served dual purposes: fellow education and obtaining cytogenetic diagnoses.

Key Insights:

A successful diagnosis was achieved in 62% of CVS procedures performed for EPF.
Samples yielding a successful karyotype had increased villi, though other characteristics were similar.
A trend towards improved success rates and villi volume was observed after fellows completed their initial five procedures.
Abnormal results were detected in 72% of cases, influencing clinical management in 15%.

Outlook:

CVS for EPF is a viable option for training MFM fellows, demonstrating patient acceptability.
The majority of CVS specimens yielded adequate material for karyotype diagnosis, supporting its utility in fellowship training.
Further research could explore optimizing CVS training protocols and long-term outcomes.