94Characterisation of arrhythmia triggers in atrial septal defects: Patterns of atrial ectopy on continuous holter monitoring. (10th October 2018) - O'Neill, L; Williams, S E; Whitaker, J; Sim, I; Mukherjee, R; Harrison, J; Julia, J; Sugihara, C; Niederer, S; Wright, M; Frigiola, A; O'Neill, M