Related Experiment Videos
Comparison of two techniques for transcervical cell sampling performed in the same study population.
Riccardo Cioni1, Cecilia Bussani, Benedetta Scarselli
1Department of Gynecology, Perinatology and Human Reproduction, University of Florence, Viale Morgagni, Florence, Italy. rcioni@yahoo.it
Prenatal Diagnosis
|March 26, 2005
Summary
Intrauterine lavage (IUL) reliably detects fetal cells in early pregnancy, unlike mucus collection. This finding is crucial for developing consistent, clinically useful transcervical cell (TCC) sampling methods.
Area of Science:
- Reproductive Biology
- Genetics
- Prenatal Diagnostics
Background:
- Transcervical cell (TCC) sampling aims to detect fetal cells in early pregnancy.
- Previous studies reported conflicting results on the efficacy of mucus collection versus intrauterine lavage (IUL).
Purpose of the Study:
- To compare the presence of fetal cells in TCC samples obtained via mucus collection and IUL.
- To evaluate the reliability of these methods for potential clinical applications.
Main Methods:
- Collected paired mucus and IUL samples from 126 women undergoing elective termination of pregnancy (7-12 weeks gestation).
- Analyzed samples using polymerase chain reaction (PCR) and fluorescence in situ hybridization (FISH) for fetal sex determination.
- Compared results with placental tissue analysis.
Main Results:
- Intrauterine lavage (IUL) correctly predicted fetal sex in 82% of male and 100% of female pregnancies.
- Mucus collection achieved correct sex prediction in only 23.9% of male and 94.6% of female pregnancies.
- IUL demonstrated a constant and reliable yield of fetal cells.
Conclusions:
- Intrauterine lavage (IUL) is a reliable method for obtaining fetal cells from TCC samples in early pregnancy.
- Mucus collection is not a reliable method for fetal cell detection.
- IUL's reliability supports its potential for clinical use in prenatal diagnostics.