Clinical expertise

Professor Dunning has expertise in a wide range of cardiac surgical procedures including:


Professor John Dunning is a consultant cardiac and transplant surgeon primarily based at Harefield Hospital, who treats both NHS and private patients. He is the director of heart and lung transplantation and mechanical circulatory support.

He was schooled in Edinburgh at George Watson’s College and attended University in St Andrew’s and Manchester, qualifying with a BSc in 1981 and M.B., Ch.B. in 1984. Subsequently, his general surgical training took place in Manchester and Leicester, with specialist cardiothoracic training at Groby Road Hospital, Leicester, Papworth Hospital, Cambridgeshire, and The John Radcliffe Hospital, Oxford.

Professor Dunning was appointed as a consultant surgeon at Papworth Hospital in 1994 and subsequently spent nearly four years as clinical director of the cardiothoracic surgical unit at The Prince Charles Hospital, Brisbane, before returning to Papworth in September 2007. He established the national pulmonary endarterectomy programme in Cambridge in 1996.

From 2019 to 2021, Prof Dunning worked at Tampa General Hospital as the surgical director of heart and lung transplantation and was appointed as The Tampa General Hospital endowed professor of cardiovascular research.

In November 2021, Prof Dunning returned to the UK as director of cardiothoracic transplantation and mechanical circulatory support service at Harefield Hospital where his practice includes all areas of adult cardiothoracic surgery, with major interests in cardiopulmonary transplantation, mechanical circulatory support, and surgery of the great vessels.


Professor Dunning has written over 130 peer-reviewed papers, reviews and editorials, as well as contributing to many book chapters. He reviews articles submitted for publication in national and international journals.


Professor Dunning is frequently invited to lecture and present original scientific work at national and international meetings for surgeons, anaesthetists and other professional groups allied to medicine.

He has also served on the examination panels for the Royal Colleges of Surgeons in the UK and in Australia.