TY - JOUR T1 - The impact of national guidance for anomaly screening and invasive testing: unintended consequences JF - Archives of Disease in Childhood - Fetal and Neonatal Edition JO - Arch Dis Child Fetal Neonatal Ed SP - F83 LP - F86 DO - 10.1136/archdischild-2013-303914 VL - 99 IS - 1 AU - M Alberry AU - W A Hassan AU - S Goodburn AU - J Brockelsby AU - J Wladimiroff AU - R Nash AU - C Lees Y1 - 2014/01/01 UR - http://fn.bmj.com/content/99/1/F83.abstract N2 - Recent guidance from the UK National Screening Committee (NSC) and the Fetal Anomaly Screening Programme (FASP) has led to important changes in prenatal ultrasound diagnosis and invasive testing. These relate to prenatal ultrasound investigation of what were previously known as ‘soft markers’ for Down's syndrome at the time of the detailed anomaly scan and as to whether full karyotype or FISH (fluorescent in situ hybridisation)/QFPCR (quantitative fluorescence PCR) testing for trisomies should be carried out when an invasive test is performed. Neither recommendation is directly related to the other but both in combination could have profound implications for the detection of chromosomal abnormalities other than trisomy 21 (Down’s syndrome). In the light of two cases recently managed in one regional fetal medicine unit, we retrospectively reviewed cases where, with correct application of the NSC and FASP recommendations, non-lethal and clinically important chromosomal abnormalities would most likely not have been detected. ER -