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Transabdominal chorionic villus sampling in the second trimester
C K Hogdall1, T A Doran, J Shime
1Department of Obstetrics and Gynecology, Toronto General Hospital, Ontario, Canada.
American Journal of Obstetrics and Gynecology
|February 1, 1988
Summary
Transabdominal chorionic villus sampling using a 17/19 needle combination yielded adequate tissue samples for prenatal genetic diagnosis. This ultrasound-guided second-trimester procedure is effective for high-risk pregnancies.
Area of Science:
- Medical Science
- Genetics
- Obstetrics
Background:
- Prenatal diagnosis is crucial for managing high-risk pregnancies.
- Second-trimester genetic testing options are vital for timely intervention.
Purpose of the Study:
- To evaluate the efficacy of transabdominal chorionic villus sampling (CVS) in the second trimester.
- To determine optimal needle size for adequate tissue acquisition during CVS.
Main Methods:
- Ultrasound-guided transabdominal chorionic villus sampling was performed on 19 patients.
- Various needle size combinations were assessed for tissue sample adequacy.
Main Results:
- The 17/19 needle size combination consistently provided adequate tissue samples.
- Transabdominal CVS proved effective in obtaining sufficient tissue for analysis.
Conclusions:
- Transabdominal chorionic villus sampling is a viable method for second-trimester prenatal genetic diagnosis.
- The 17/19 needle size is recommended for optimal results in transabdominal CVS.