Chorion Villus Sampling

Structure and - Function -.- Embryology and physiopathology of early pregnancy trophoblast.- Fine structure of chorionic tissue in health and disease.- The enzymology of chorionic villi and the first trimester diagnosis of metabolic disorders.- Placental immunobiology in early pregnancy.- Transcervical Chorion - Villus Sampling -.- The method of chorion villus sampling under real-time ultrasound guidance using the 'Portex' cannula.- Transcervical chorion villus aspiration by a single operator technique.- Tipped metal cannulae.- The Nottingham brush for chorion villus sampling.- Chorion villus.