Related Experiment Videos
Chorionic villus sampling in a high-risk population--4 years' experience
R H Ward1, M Petrou, B M Modell
1Department of Obstetrics and Gynaecology, Faculty of Clinical Sciences, University College, London.
British Journal of Obstetrics and Gynaecology
|October 1, 1988
Summary
Prenatal diagnosis using chorionic villus sampling (CVS) is feasible for high-risk pregnancies. Fetal loss rates decreased with team experience, indicating safety improvements over time.
Area of Science:
- Medical Genetics
- Reproductive Medicine
- Obstetrics
Background:
- Prenatal diagnosis is crucial for managing pregnancies with high genetic risk.
- Chorionic villus sampling (CVS) offers an early option for genetic testing.
Purpose of the Study:
- To evaluate the feasibility and outcomes of chorionic villus sampling in high-risk pregnancies.
- To assess the safety and efficacy of CVS in a clinical setting.
Main Methods:
- Prospective study of 163 pregnancies undergoing CVS between August 1982 and July 1986.
- Villus sampling success rates and subsequent fetal loss were recorded.
- Data analysis focused on the relationship between team experience and fetal loss rates.
Main Results:
- Successful villus sampling was achieved in 158 out of 163 pregnancies.
- Eleven fetal losses occurred after successful CVS, with four in affected fetuses.
- The fetal loss rate demonstrated a downward trend with increasing procedural experience.
Conclusions:
- Chorionic villus sampling is a viable method for prenatal diagnosis in high-risk pregnancies.
- The safety of CVS improves with accumulated experience, suggesting a learning curve.
- Successful sampling in twin gestations highlights the technique's applicability in multiple births.