Dr Luke Howard is the Director of the National Pulmonary Hypertension Service at Hammersmith Hospital, Imperial College Healthcare NHS Trust and is an Honorary Senior Lecturer at the National Heart & Lung Institute, Imperial College London. He is also the lead clinician for Diagnostic Exercise Physiology at ICHNT. He runs the Joint Pulmonary Embolism / Thrombophilia service for ICHNT. He also holds an honorary contract at St Bartholomew's Hospital for providing Pulmonary Hypertension services. His research interests are in cardiopulmonary phyiology, haemodynamics, post pulmonary embolism syndrome and clinical trials.