TY - JOUR T1 - Long QT syndrome presenting as fetal bradycardia and 2:1 atrioventricular block in a preterm infant JF - Archives of Disease in Childhood - Fetal and Neonatal Edition JO - Arch Dis Child Fetal Neonatal Ed DO - 10.1136/archdischild-2021-323281 SP - fetalneonatal-2021-323281 AU - Sean T Kelleher AU - Terence Prendiville AU - Aoife Carroll Y1 - 2022/02/15 UR - http://fn.bmj.com/content/early/2022/02/15/archdischild-2021-323281.abstract N2 - We present a case of a male infant born by emergency caesarean section for fetal bradycardia detected in the context of a maternal intercurrent illness at 31+5 weeks’ gestation. He was born vigorous despite a heart rate of 65–80 beats/min. ECG at birth (figure 1) demonstrates a ‘pseudo-block’ phenomenon arising from a profoundly prolonged QT interval (633 ms). Non-conducted P waves occur before the T wave of the preceding QRS as the ventricles have not repolarised before the atria contract for the second … ER -