Imperial College London

Mr Ahmed R. Ahmed PhD FRCS

Faculty of MedicineDepartment of Surgery & Cancer

Clinical Senior Lecturer in Bariatric Surgery



+44 (0)20 8846 1081a.ahmed07




Charing Cross HospitalCharing Cross Campus





 Mr Ahmed is a clinical senior lecturer in the Department of Surgery and Cancer at the College and Honorary consultant in upper gastrointestinal and bariatric surgery and Clinical lead for bariatric surgery at Imperial Colege Healthcare NHS Trust.  

Mr Ahmed's academic interests are in the mechanism of complications following bariatric surgery and he has a PhD analysing internal hernias following gastric bypass surgery.  He has numerous research affiliations with both clinical and non-clinical teams including biomedical engineering, investgative medicine, human genetics, gastroenterology, endocrinology, vascular surgery, urology, renal medicine, and the CPSSQ.

His main clinical areas of interest are in complex revisional bariatric surgeries and he receives referrals from all over the UK and abroad for his expert skills.   He has trained in general and upper GI surgery in the UK and at Stanford University and the University of Rochester in the US. 

 He trains other surgeons in the field of bariatric surgery and is on the faculty on numerous courses on bariatric surgery.  Mr Ahmed is often consulted by other professionals and medicolegal experts for his opinions on complex bariatric surgery cases.   He is on the editorial boards of the main obesity scientific journals SOARD and Obesity Surgery.  He is a member of the American Society for Metabolic and Bariatric Surgery (ASMBS), International Federation of Surgery for Obesity (IFSO), Society of American Gastroenterological and Endoscopic Surgeons (SAGES), Association of Upper GI Surgeons (AUGIS), British Obesity and Metabolic Surgery Society (BOMSS).



Ghanem A, Emile S, Cousins J, et al., 2021, Bariatric surgery during COVID-19 in the UK: a British Obesity and Metabolic Surgery Society (BOMSS) survey, Surgical Endoscopy and Other Interventional Techniques, ISSN:0930-2794

Samarasinghe S, Sudlow A, Dimitriadis GK, et al., 2021, Simple tool to prioritize access to bariatric surgery for people living with obesity during the COVID-19 pandemic, British Journal of Surgery, ISSN:0007-1323

Kenkre J, Ahmed A, Purkayastha S, et al., 2021, Who will benefit from bariatric surgery for diabetes? A protocol for an observational cohort study, Bmj Open, Vol:11, ISSN:2044-6055

Ilesanmi I, Tharakan G, Alexiadou K, et al., 2021, Roux-en-Y Gastric Bypass Increases Glycemic Variability and Time in Hypoglycemia in Patients With Obesity and Prediabetes or Type 2 Diabetes: A Prospective Cohort Study, Diabetes Care, Vol:44, ISSN:0149-5992, Pages:614-617

Miras A, Kamocka A, Pérez-Pevida B, et al., 2021, The effect of standard versus longer intestinal bypass on GLP-1 regulation and glucose metabolism in patients with type 2 diabetes undergoing roux-en-Y gastric bypass. The long-limb study, Diabetes Care, Vol:44, ISSN:0149-5992, Pages:1-9

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