Pre-operative anaemia is common in patients undergoing non-cardiac surgery and associated with an increased risk of blood transfusion, hospital length of stay and postoperative complications. This podcast is all about a new secondary analysis of the PREVENTT study. We are delighted to be joined in Australia by three of the papers authors, Professor Toby Richards, Dr Anastazia Keegan and Professor Lachlan Miles. The aim of their analysis was to determine whether specific iron deficiency phenotypes derived clinical benefits from intravenous iron before major abdominal surgery compared with placebo.