Samer Nashef is a consultant cardiac surgeon at Papworth Hospital in Cambridge. He practises all types of cardiac surgery and has a special interest in minimally invasive coronary bypass, mitral repair and surgery for atrial fibrillation. He is also interested in valve-sparing surgery of the aortic root. Samer is active in research involving risk assessment and monitoring the quality of surgical treatment, where he is the leader of the EuroSCORE project. He is the chief investigator in the Amaze Trial, a randomised evaluation of maze versus control as a concomitant cardiac procedure, and the HESTER Study, which seeks to assess left atrial function after surgical maze procedure. He is the author of The Naked Surgeon, a book explaining the issues surrounding medical data, transparency and care quality evaluation.