His research interests include pre-operative assessment of high-risk surgical candidates, all aspects of renal replacement therapy, diagnosis, pathophysiology and treatment of acute kidney injury and predictive modeling in acute medical admissions. He has published over 100 papers including several book chapters as well as being a co-editor on one book. He is a referee for over 20 journals and is on the editorial board of several. He has been the UK Principal investigator for several international studies as well as currently being the lead investigator for a UK based study.