The trophoblast biopsy

This examination is increasingly used instead of amniocentesis to look for a trisomy 21. This is a sample on the future placenta. What is it exactly? How is the trophoblast biopsy? Let's go into the service of Professor Jean-François Oury at Robert Debré Hospital in Paris.

Production : Julie Ledru
Montage: Julie Ledru
Production : Christine Cointe