Mr. Kamal Mahawar is a Consultant General and Bariatric Surgeon at Sunderland Royal Hospital, in North East of England. He takes a significant interest in research in bariatric surgery and regularly writes on related topics. He has co-authored over 100 peer-reviewed articles and multiple book chapters. He was recently awarded an honorary professorship at Shri Aurobindo Medical College and Postgraduate Institute, Indore (MP), India. Mr. Mahawar is also affiliated with Newcastle University as an Associate Clinical Lecturer and Sunderland University as a Visiting Research Fellow. He served as an honorary clinical tutor at the University of Edinburgh from 2014 to 2016. Mr. Mahawar has authored many highly cited systematic reviews in areas of controversy in bariatric surgery with an overarching aim to simplify bariatric surgery and improve its safety. Mr. Mahawar grew up in Kolkata, India, and obtained his medical degree from the Kolkata Medical College in 1996 with multiple honours and medals. He was ranked first in the college in the final MBBS examination of the University and received the BC Roy Award from Mr. I K Gujral, then Prime Minister of India. He then went on to obtain his MS (Master of Surgery) in General Surgery from the Prestigious PGIMER in Chandigarh in 2000 before emigrating to the UK. In the UK, Kamal obtained an MSc with distinction from the Liverpool University and obtained further surgical training in the Northern Deanery. He ultimately obtained the Fellowship of the Royal College of Surgeons of Edinburgh (FRCSEd) in 2010. Kamal is also a non-fiction writer. His book “The Ethical Doctor” written on the current state of Indian healthcare and published by Harper Collins in 2016 received widespread media coverage in India and abroad and may have proved to be a catalyst for an enhanced focus on healthcare from the media, the civil service, and the policymakers in India. His second book is currently under publication. Mr. Mahawar is widely recognised within bariatric circles for his contributions to the understanding and development of One Anastomosis Gastric Bypass. He contributed a series of articles, finally culminating into the recent publication of the first consensus paper on this rapidly growing bariatric procedure. Mr. Mahawar has been an invited faculty and guest speaker at many national and international conferences. In addition, he serves on a number of important committees of prestigious societies including IFSO, BOMSS, ASMBS, ASGBI, and BMA. He is on the editorial board of “Obesity Surgery” and is also its first Social Media Editor. He is also an Associate Editor of “Clinical Obesity.” He regularly mentors healthcare professionals from around the world on academic and research matters. He is an enthusiastic surgical trainer and a recognised UK mentor for One Anastomosis Gastric Bypass. Kamal has set up multiple email chat groups with hundreds of users and social media networking groups with thousands of members to facilitate interactions among healthcare professionals working in the field of bariatric surgery.
Selected publications from PubMed
Correction to: Global 30-Day Morbidity and Mortality of Primary Bariatric Surgery Combined with Another Procedure: The BLEND Study.
Martinino A, Nanayakkara KDL, Madhok B, Wong GYM, Abouelazayem M, Pereira JPS, Wazir I, Balasubaramaniam V, Said A, Marques C, Abdelbaeth A, Al-Shami K, Albashari M, Alkaseek A, Almayouf MA, Aloulou M, Alqahtan AR, Askari A, Attia MFA, Awad AK, Aykota MR, Bacalbasa N, Barrera-Rodriguez FJ, Benavoli D, Billa S, Borrelli V, Çalıkoğlu İ, Campanelli M, Carbajo MA, Chowdhury S, Cristin L, Dapri G, Dong Z, Elfawal MH, Elgazar A, Elhadi M, Gentileschi P, Graham Y, Haj B, Johnson JA, Kalmoush AM, Kamal A, Kamocka A, Khamees A, Lisi G, Hernandez EEL, Marinari GM, Martines G, Meric S, Mier F, Ali AM, Mohammed D, Mohamed KM, Mulita F, Musella M, O'Malley WE, Olmi S, Omarov T, Osama O, Perera HR, Piscitelli G, Poghosyan T, Ramírez D, Rezvani M, Ribeiro R, Sabbota A, Sakran N, Sawaftah KA, Schiavone K, Şen O, Sotiropoulou M, Tartaglia N, Tokocin M, Trotta M, Türkçapar AG, Uccelli M, Vargas C, Verras G-, Wang C, Wei Z, Yang W, Zerrweck C, Owen E, Gkoutos GV, Cardoso VR, Singhal R, Mahawar K, BLEND Study Collaborative Group
Obes Surg. 2026 Aug;36(8):4497-4499 doi: 10.1007/s11695-024-07410-2.
Frailty, physiological reserve, and surgical resilience: toward a dynamic stress-recovery model.
Cudnik R, Barone M, Marano L, Gargarella S, Duka R, Molchanov R, Girnyi S, Cwalinski T, Al-Balas M, Vashist Y, Cobianchi L, Malerba S, Prete FP, Testini M, Calu V, Aladashvili A, Mahawar K, Isik A, Boccardi V
Aging Clin Exp Res. 2026 Jul 20 doi: 10.1007/s40520-026-03461-w.
International expert consensus on definitions and management of weight recurrence and suboptimal response after metabolic and bariatric surgery: a Delphi study.
Wills MV, Lee S, Mocanu V, Lee Y, Kachornvitaya P, Zhu X, Alfaris N, Andromalos L, Apovian C, Behrens E, Birk D, Busetto L, Courcoulas A, Cummings D, Faria SL, Ghanem O, Han SM, Karmali S, Kaplan L, Kow L, le Roux CW, Mahawar K, Gawdat K, Munoz R, Musella M, Nimeri A, O'Kane M, Palermo M, Ponce de Leon Ballesteros G, Salminen P, Sullivan S, Udomsawaengsup S, Tewksbury C, Vidal J, Wilding J, Dang J, Strong A, Navarrete S, Zundel N, Kermansaravi M, Butsch S, Kroh M, Corcelles R
Surg Obes Relat Dis. 2026 Jul;22(7):753-761 doi: 10.1016/j.soard.2026.03.006.
An international multidisciplinary consensus statement on laparoscopic liver biopsy.
Lei SY, Han Y, Rockey DC, Alswat K, Wong VW, Jumaev N, Toro-Huamanchumo CJ, Taha S, El-Kassas M, George J, Muthiah M, Ghanem O, Yoneda M, Hang DV, Sebastiani G, Papatheodoridis G, Abu-Abeid A, Robertson AG, Kim SH, Weiner R, Mahawar K, Shabbir A, Kermansaravi M, Rajan R, Seki Y, Taskin HE, Shikora S, Oliveros E, Parmar C, Cheng Q, Thaher O, Ruiz-Úcar E, Oviedo R, Ribeiro R, Musella M, Ramos AC, Ryu SW, Abdelbaki T, Lee WJ, Chan MP, Garcia Flores JE, Skinovsky J, Madkhali A, Weiner S, Tacke F, Yang W, Neuberger J, Zheng MH, International Obesity Society Working Group on Steatotic Liver Disease
Cell Rep Med. 2026 Jun 16;7(6):102831 doi: 10.1016/j.xcrm.2026.102831.
Same-day Discharge Metabolic and Bariatric Surgery: a GRADE-based International Federation for the Surgery and Other Therapies for Obesity (IFSO) Position Statement.
Kermansaravi M, Cohen RV, Shikora SA, Chiappetta S, Parmar C, Mahawar K, Aminian A, Dillemans B, Monami M, Belluzzi A, Nimeri A, Angrisani L, Di Lorenzo N, Prager G, Petry TB, Kassir R, De Luca M
Obes Surg. 2026 Apr;36(4):1932-1945 doi: 10.1007/s11695-026-08555-y.
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