Dr Sayer qualified from St Bartholomew's Hospital (Barts) in 1987 and trained in cardiology at Barts and The London Chest Hospitals from 1992 to 1999. His MD thesis was on factors that precipitate myocardial infarction, and he specialised in interventional cardiology.
Dr Sayer was appointed Consultant Cardiologist at Princess Alexander Hospital (PAH) and Barts in 1999. At PAH, he undertakes the general cardiology of a busy general hospital. Since his appointment, Dr Sayer has helped to develop the cardiac services at PAH, where he is lead cardiologist. He argued the need for local cardiac angiograms and as a result, the Cardiac Angiography Suite opened at PAH in 2004. This has been coupled with expansion of the non-invasice cardiac facilities and the building of The Cardiac Assessment Unit, which opened in 2005. Dr Sayer continues to work actively with primary and secondary care to improve patient services.
Dr Sayer has a broad cardiological background but specialises in coronary artery disease. He has a long history of training and experience in coronary angioplasty and stent insertion. As a consultant, he undertook this initially at Barts, but now practices at The Essex Cardiothoracic Centre in Basildon, a purpose-built unit opened in the summer of 2007.