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Conclusion With greater accuracy and fewer demands for invasive testing, ffDNA is set to change the way we screen for chromosomal anomalies in pregnancy. However, setting up a new screening program has its challenges and is costly. Discussion as to how the NHS implements ffDNA into the screening service is vital if it is to successfully negotiate changes in service implementation. The importance of counselling and informed consent should not be overlooked when discussing ffDNA with patients, so they can understand the choices they face and the implication of any screening.


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ABOUT THE AUTHORS Dr Michelle Kemp is an Obstetric and Gynaecology Registrar at the Norfolk and Norwich University Hospital. She has an interest in fetal and maternal medicine, and enjoys teaching medical students.


Mr Richard Smith has been a Consultant Obstetrician and Subspecialist in fetal medicine for eight years. He has trained in East Anglia, London, and Bristol. He has been a member of the National Screening Committee, the regional ultrasound training coordinator for obstetrics and gynaecology trainees, and is the prize coordinator for the British Maternal and Fetal Medicine Society.


-25- . Obstetrics and Gynecology 2012; . Non-invasive prenatal diagnosis using massively parallel sequencing – first


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