Dimitri is an Upper Gastrointestinal, Bariatric and Metabolic surgeon. His research interests are outcomes of bariatric/metabolic surgery beyond weight loss with a focus on obesity associated morbidity and cardiovascular risk. Identification of how these operations work or how bariatric/metabolic surgery changes the way the gut talks to the brain. He is on the editorial board of journals Obesity Surgery and Clinical Obesity and regularly publishes his research.