Imperial College London


Faculty of MedicineDepartment of Surgery & Cancer

Clinical Senior Lecturer in Bariatric Surgery



+44 (0)20 3312 6962s.purkayastha Website




1022Queen Elizabeth the Queen Mother Wing (QEQM)St Mary's Campus





Sanjay Purkayastha is a General Surgeon with a specialist interest in Bariatric & Upper GI Surgery.

His research interests are varied and include surgical education especially digital mobile technologies, clinical research in Bariatric and Metabolic Surgery, assessing the health of heathcare organisations, single port laparoscopic surgery and surgical evidence synthesis.



Lam K, Iqbal F, Purkayastha S, et al., 2021, A protocol for a Delphi study investigating the ethical and data governance issues of artificial intelligence in surgery, Jmir Research Protocols, ISSN:1929-0748

Moussa O, Ardissino M, Tang A, et al., 2021, Long-term cerebrovascular outcomes after bariatric surgery: A nationwide cohort study., Clin Neurol Neurosurg, Vol:203

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, ISSN:2044-6055

Arhi CS, Dudley R, Moussa O, et al., 2021, The Complex Association Between Bariatric Surgery and Depression: a National Nested-Control Study, Obesity Surgery, ISSN:0960-8923

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

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