Dr Matt Simpson is a consultant anaesthetist at St. James University Hospital, Leeds, UK. He is the lead clinician for both Obstetric anaesthesia and for advanced vascular access and he runs the Placenta Accreta service in Leeds. He also anaesthetises for Major Pelvic Exenterations within the colorectal surgical team and does regular thoracic anaesthesia. He teaches on major obstetric haemorrhage and is an instructor for MOET course as well as being a key trainer in thromboelastography..