N Ahluwalia (Presenting Author) – St Bartholomew’s Hospital, London; A Graham – St Bartholomew’s Hospital, London; M Orini – University College London, London; JS Gill – St Bartholomew’s Hospital, London; S Sporton – St Bartholomew’s Hospital, London; A Chow – St Bartholomew’s Hospital, London; RJ Hunter – St Bartholomew’s Hospital, London; P Lambiase – St Bartholomew’s Hospital, London; M Dhinoja – St Bartholomew’s Hospital, London