Dr. Samrat Ray

1. European society of organ transplantation (ESOT) educational global grant 2024: Scientific travel grant for attending the European liver and intestinal transplant association (ELITA) summit, Madrid. Spain (April 2024).
2. The Transplantation Society (TTS) scientific congress award 2023 (2023 Joint Congress of IPITA-IXA-CTRMS in San Diego, CA, USA): 1000 USD for the research paper titled: Establishment of a genetic signature of ischemia reperfusion injury in a porcine pancreas transplantation model. 
3. 2022 Ajmera Transplant Centre fellowship award (Toronto, Canada): 20000 CAD for the project titled: Expanding the pancreas transplant donor pool using a porcine normothermic ex vivo perfusion model (2022-23)
4. The Transplantation Society (TTS) Mentor-Mentee Award 2022 (Buenos Aires, Argentina): 1500 USD for the research paper titled: Establishing the most physiological milieu for normothermic ex vivo pancreas perfusion in porcine model: How far have we reached?
5. Torrent Young Scholar Award (TYSA): Awarded best orator in medical debate at the national rounds in Ahmedabad, India; December 2017
6. Travel Bursary for the annual conference of Indian association of Surgical Gastroenterology (IASGCON) Puducherry, India; October 2017
7. Awarded Travel grant by the Department of Science and Technology (DST), India 2017; 1000 USD: Poster presentation in the Joint international congress of ILTS/ELITA/LICAGE Prague, Czech Republic; May 2017
8. Awarded best oral presenter at IASGCON 2016, Coimbatore, India for the research work: Informed consent in 1000 Indian GI surgical and Liver transplant patients: A prospective observational study.
9. Organ perfusion workshop instructor (Lecturer) at the International Liver Transplant Symposium (ILTS) 2024 Houston, USA.
10. Featured in the special edition of the living transplantation Canadian podcast: Top 8 research from Toronto general hospital, Ajmera transplant centre: available on: https://open.spotify.com/episode/33bX0lyeIJmB81ZhtNCFN1?si=h-3G2PQXTP-mCnJxZ9Sadg
11. Organ perfusion workshop instructor (Lecturer) at the International Liver Transplant Symposium (ILTS) 2022 Istanbul, Turkey.
12. Recognised Faculty (Trainer)for the Gyan Burman HPB fellowship, Sir Ganga Ram Hospital, under the aegis of IHPBA (Dec 2019-Sep 2021)
13. Peer reviewer: Transplantation, Turkish Journal of Gastroenterology, BMJ Case reports, Annals of Transplantation, Global healthy policy and research.
14. Media coverage: Article titled “The research output from Indian medical institutions from 2005 to 2014” received wide media coverage by leading Indian newspapers like the Times of India, The Hindustan Times, The Telegraph, Indian Express and over 30 different regional dailies.
15. International media coverage: Article titled “The research output from Indian medical institutions from 2005 to 2014” covered in the Washington Post, The Toronto Star, highlighting the state of research in India on a global scale and the methods to improve the same.
16. International Journals: Article titled “The research output from Indian medical institutions from 2005 to 2014” covered in the editorial column of the BMJ and the Lancet 2016.
17. Media coverage: Credited with the first major liver resection in Braj district of western Uttar Pradesh, India.
18. Gold medallist in MBBS (Delhi university); Batch 2005-10.
19. Awarded Delhi medical association (DMA) Gold medal for the best outgoing medical graduate of the year 2009, Delhi University
20. Ratan Mani Sharma award for first rank in second year MBBS
21. Dr Abhijeet Malhotra award for first rank in final MBBS
22. Highest marks in Final MBBS in Delhi University
23. Miss LV Pathak award for highest marks in Obstetrics and Gynaecology (2009)
24. Sharda Vishwanathan Prize for highest marks in Obstetrics and Gynaecology in Delhi University (2009)
25. Distinction in Biochemistry, Pathology and Microbiology
26. Batch topper in Biochemistry, Pathology, Microbiology, Forensic medicine, Surgery, Obstetrics and Gynaecology, Paediatrics
27. Awarded best all-round student of the year (2008) by UCMS alumni association, Delhi University.

Publications:

1. Parente A, Verhoeff K, Ray S, Selzner M, Reichman TW, Bleszynski MS, Segedi M, Glinka J, Tang E, Ganescu O, Solomon M, Barkun J, Chaudhury P, Paraskevas S, Zogopoulos G, Rubio S, Gala-Lopez BL, Dajani KZ, and Shapiro AMJ. Utilization of liver grafts obtained from donation after medical assistance in dying: a Canadian multicenter experience. Journal of Hepatology. https://doi.org/10.1016/j.jhep.2025.08.039
2. Ray S, Ganesh S, Martinez-Arenas L, Parmentier C, Kawamura M, Arulratnam B, Hobeika C, Nogueira E, Novoa FC, Selzner M, Reichman TW. Establishing and Validating a Biomolecular Signature of Ischemia/Reperfusion Injury in a Porcine Pancreas Allotransplantation Model. Transplant Direct. 2025;11:e1793. doi: 10.1097/TXD.0000000000001793. PMID: 40718055; PMCID: PMC12289139.
3. Parmentier C, Ray S, Kawamura M, Mazilescu LI, Nogueira E, Hobeika C, Calderón-Novoa F, Chu T, Ganesh S, Arulratnam B, Kalimuthu SN, Martínez-Arenas L, Selzner M, Reichman TW. Normothermic Ex Vivo Machine Perfusion Mitigates Apoptosis in a Porcine Model of Pancreas Transplantation. Transplantation. 2025. doi: 10.1097/TP.0000000000005441. Epub ahead of print. PMID: 40545575.
4. Patel P, Ray S, Rajendran L, Muaddi H, Coe TM, Irfan A, Shwaartz C. Beyond boundaries: An exploration of general surgery education in Canada and India. Curr Med Res Pract.2024;14:214-21.
5. Ray S, Hobeika C, Norgate A, Sawicka Z, Schiff J, Sapisochin G, McGilvray ID, Selzner M, Reichman TW, Shwaartz C. Evolving trends in the management of duodenal leaks after pancreas transplantation: A single-centre experience. Transpl Int. 2024;37.  https://doi.org/10.3389/ti.2024.13302
6. Kawamura M, Parmentier C, Ray S, Clotet-Freixas S, Leung S, John R, Mazilescu L, Nogueira E, Noguchi Y, Goto T, Arulratnam B, Ganesh S, Tamang T, Lees K, Reichman TW, Andreazza AC, Kim PK, Konvalinka A, Selzner M, Robinson LA. Normothermic ex vivo kidney perfusion preserves mitochondrial and graft function after warm ischemia and is further enhanced by AP39. Nat Commun. 2024;15:8086. doi: 10.1038/s41467-024-52140-9. PMID: 39278958; PMCID: PMC11402965.
7. Mukkala AN, Ray S, Bevacqua D, McGilvray I, Sapisochin G, Moulton CA, Gallinger S, Cleary SP, Shwaartz C, Wei AC, Reichman T. Disease-free survival after pancreatectomy for pancreatic neuroendocrine tumours: a 17-year single-center experience of 223 patients. J Gastrointest Surg. 2024:S1091-255X(24)00508-0. doi: 10.1016/j.gassur.2024.06.015. Epub ahead of print. PMID: 38906319.
8. Goto T, Noguchi Y, Linares I, Mazilescu L, Nogueira E, Hobeika C, Ray S, Parmentier C, Ganesh S, Peranantharuban J, Chan HHL, Reichman T, Selzner N, Selzner M. Indocyanine green fluorescence quantification during normothermic ex situ perfusion for the assessment of porcine liver grafts after circulatory death. Liver Transpl. 2024. doi: 10.1097/LVT.0000000000000416. Epub ahead of print. PMID: 38869990.
9. Ray S, Bevacqua D, Chan D, Shwaartz C, McGilvray I, Moulton CA, Cleary SP, Gallinger S, Reichman TW. Outcome of pancreatic resection in patients with prior liver transplantation: a single center experience. HPB. 2024 https://doi.org/10.1016/j.hpb.2024.03.1162
10. Ray S, Parmentier C, Kawamura M, Ganesh S, Nogueira E, Novoa FC, Hobeika C, Chu T, Kalimuthu SN, Selzner M, Reichman TW. Reanimating Pancreatic Grafts Subjected to Prolonged Cold Ischemic Injury Using Normothermic Ex Vivo Perfusion. Transplant Direct. 2024;10:e1620. doi: 10.1097/TXD.0000000000001620. PMID: 38617463; PMCID: PMC11013695.
11. Bhavsar R, Ray S, Yadav A, Das SAP, Mehta NN, Nundy S. Pancreaticoduodenectomy with multi-visceral resection: Is it worthwhile? A 10-year experience at a tertiary care centre. Current Medicine Research and Practice. 2024;14:67-72. DOI: 10.4103/cmrp.cmrp_2_24
12. Ray S, Shwaartz C, Sayed BA, Sapisochin G, Ghanekar A, McGilvray I, Cattral M, Lilly L, Selzner N, Tsien C, Bhat M, Jaeckel E, Selzner M, Reichman TW. Should advanced donor age be a deterrent in the utilization of grafts from donation after cardiac death in deceased donor liver transplantation? The Toronto experience. Can J Surg. 2023;66:E561-E571. doi: 10.1503/cjs.001123. PMID: 38016726.
13. Ray S, Torres-Hernandez A, Bleszynski MS, Parmentier C, McGilvray I, Sayed BA, Shwaartz C, Cattral M, Ghanekar A, Sapisochin G, Tsien C, Selzner N, Lilly L, Bhat M, Jaeckel E, Selzner M, Reichman TW. Medical assistance in Dying (MAiD) as a source of liver grafts. Honouring the ultimate gift. Ann Surg. 2023;277:713-8. Doi: 10.1097/SLA.0000000000005775.
14. Ray S, Reichman TW. Predicting early graft loss in pancreas transplantation using novel imaging techniques. Are we there yet? Hepatobiliary Surg Nutr. 2023. Doi: 10.21037/hbsn-23-110.
15. Ray S, Yousuf A, Dharia A, Ayoub G, Parmentier C, Norgate A, Schiff J, Shwaartz C, Selzner M, Reichman TW. Outcomes of pancreas transplantation in patients with underlying inflammatory bowel disease: a retrospective case series. Ann Med Surg. 2023. Doi: 10.1097/MS9.0000000000000408 (Ahead of Print).
16. Parmentier C, Ray S, Mazilescu LI, Kawamura M, Noguchi Y, Nogueira E, Ganesh S, Arulratnam B, Kalimuthu SN, Selzner M, Reichman TW. Normothermic ex vivo machine perfusion of discarded human pancreas allografts: A feasibility study. Transpl Int. 2023. Doi: 10.3389/ti.2023.10936. 
17. Bleszynski MS, Parmentier C, Torres-Hernandez A, Ray S, Yousuf A, Norgate A, Schiff J, Shwaartz C, Sapisochin G, McGilvray I, Selzner M, Reichman TW. Pancreas transplantation with grafts obtained from donation after cardiac death or donation after brain death results in comparable outcomes. Frontiers in Transplantation. 2023.  https://doi.org/10.3389/frtra.2023.1176398
18. Parmentier C, Gao F, Ray S, Kawamura M, Noguiera E, Ganesh S, Selzner M, Reichman T. Intubation, Central Venous Catheter, and Arterial Line Placement in Swine for Translational Research in Abdominal Transplantation Surgery. J Vis Exp. 2023;192. doi: 10.3791/64780. PMID: 36807320.
19. Ray S, Parmentier C, Mazilescu L, Kawamura M, Noguchi Y, Nogueira E, Ganesh S, Arulratnam B, Selzner M, Reichman TW. Surgical tips and tricks for performing porcine pancreas transplantation. J Vis Exp. 2022; 185:e64203.
20. Parmentier C, Ray S, Mazilescu L, Kawamura M, Noguchi Y, Nogueira E, Ganesh S, Arulratnam B, Kalimuthu S, Selzner M, Reichman TW. Normothermic ex vivo pancreas perfusion for the preservation of pancreas allografts before transplantation. J Vis Exp. 2022; 185:e63905
21. Bhat BK, Ray S, Lalwani S, Mangla V, Mehta NN, Yadav A, Nundy S. Redo hepaticojejunostomy in the management of bilioenteric anastomotic strictures. Curr Med Res Prac. 2022; 12:162. DOI: 10.4103/cmrp.cmrp_43_22.
22. Yadav A, Jain N, Ray S, Nundy S. Ectopic Gall Bladder: A review. Int J Health Sci. 2022. DOI: 10.53730/ijhs.v6nS6.10054
23. Bhavsar R, Ray S, Nundy S. Decompensated chronic liver disease: A review of current concepts and management guidelines. Curr Med Res Pract. 2022;12:26-34.
24. Ray S, Jena SS, Yadav A, Das SAP, Mehta NN, Nundy S. Whipple’s pancreatoduodenectomy in the background of chronic liver disease(CLD): An institutional experience. Surg Res Pract. 2021. Article ID 4848380. doi:10.1155/2021/4848380
25. Jena SS, Obili RCR, Das SAP, Ray S, Yadav A, Mehta NN, Nundy S. Intestinal obstruction in a tertiary care centre in India: Are the differences with the western experience becoming less? Ann Med Surg. 2021;72:103125. doi:10.1016/j.amsu.2021.103125 
26. Bhavsar R, Ray S, Verma M, Agarwal SK, Nundy S. Single stage repair of anorectal malformation with rectovestibular fistula in adult. Ann Med Surg. 2021;72:103057. doi:10.1016/j.amsu.2021.103057
27. Yadav A, Ray S, Nundy S. Ectopic Gall Bladder: A case report. SAGE Case Rep. 2021;9:1-3.
28. Singh BK, Ray S, Dhawan S, Nundy S. Spectrum of presentation in primary anorectal malignant melanoma and its management. BMJ Case Rep 2021;14:e245449. doi:10.1136/bcr-2021-245449.
29. Jena SS, Ray S, Das SAP, Mehta NN, Yadav A, Nundy S. Rare pseudopapillary neoplasm of the pancreas: A 10-year experience. Surg Res Pract 2021. Article ID 7377991. http://doi.org/10.1155/2021/7377991.
30. Sharma N, Ray S, Nundy S. Caput medusae in a patient with non‑cirrhotic portal fibrosis: Clinical images. J Med Evid 2021:2:250-1
31. Ray S, Tiwari P, Yadav A, Sahni P, Singh AN, Nundy S. Assessment of their training in surgical gastroenterology by residents from two major institutes in India. Indian J Surg. 2021. http://doi.org/10.1007/s12262-021-02880-5
32. Ray S, Nundy S. Surgical gastroenterology in India. Indian J Surg. 2021. http://doi.org/10.1007/s12262-021-02882-3
33. Ray S, Das S, Mangla V, Yadav A, Chugh P, Mehta N, Nundy S. Prediction of outcome of patients undergoing Whipple’s pancreatoduodenectomy before operation: A prospective validation of a novel risk scoring system. J Surg Res (Houst). 2021;4:229-39.
34. Kanthala L, Ray S, Das SA, Nundy S, Mehta N. Recurrent giant retroperitoneal liposarcoma: Review of literature and a rare case report. Ann Med Surg. 2021;17:102329.
35. Sharma N, Anand A, Joshi S, Ray S. Policy of promoting alcohol consumption in times of COVID-19 lockdown in India: a medical and constitutional analysis. Ind J Applied Res. 2021;11:1-4.
36. Bojanapu S, Malani RA, Ray S, Mangla V, Mehta N, Nundy S. Duodenal perforation: outcomes after surgical management at a tertiary care centre- A retrospective cross-sectional study. Surg Res Pract. 2020. http://doi.org/0.1155/2020/8392716
37. Ray S, Mehta N, Nundy S. Post-Gastrectomy complications- An Overview. Chirurgia (Bucuresti). 2020; doi:10.21614/chirurgia.115.4.423
38. Das S, Ray S, Mangla V, Mehrotra S, Lalwani S, Mehta NN, Yadav A, Nundy S. Post pancreaticoduodenectomy hemorrhage: A retrospective analysis of incidence, risk factors and outcome. Saudi J Gastroenterol. 2020;10:4103 
39. Ray S, Mehta NN, Mangla V, Lalwani S, Mehrotra S, Chugh P, Yadav A, Nundy S. A comparison between the comprehensive complication index and the Clavien-Dindo grading as a measure of postoperative outcome in patients undergoing gastrointestinal surgery- A prospective study. J Surg Res. 2019;244:417-24.
40. Ray S, Choudhury AAM, Biswas S, Bhutta ZA, Nundy S. The research output from medical institutions in South Asia between 2012 and 2017: An analysis of their quantity and quality. Curr Med Res Pract. 2019. http://doi.org/10.1016/j.cmrp.2019.07.005
41. Jung EL, Coste R, Gehani A, Ray S, Arora C, Nundy S.  Automating the Classification of Post-surgery Complication Grades. 7th Workshop on Data Mining for Medicine and Healthcare (DMMH), affiliated with the 18th SIAM International Conference on Data Mining (SDM). 2018
42. Ray S, Yadav A, Jain S, Nundy S. Isolated antro-pyloric metastatic mass from colonic carcinoma: A rare case presentation. Ann Med Surg. 2018;36:235-8.
43. Ray S, Mehta NN, Golhar A, Nundy S. Post hepatectomy liver failure- A comprehensive review of current concepts and controversies. Ann Med Surg. 2018;34:4-10.
44. Ray S, Nundy S. Dense adhesiolysis in colorectal surgery: A review. Ind J Applied Res. 2018;8:376-7. 
45. Ray S, Mehta NN, Mehrotra S, Lalwani S, Mangla V, Yadav A, Nundy S. Effect of informed consent on patients undergoing gastrointestinal surgery and living donor liver transplantation and on their relatives in a developing country. BJS Open. 2017;doi:10.1002/bjs5.37.
46. Shah I, Ray S, Mehrotra S, Lalwani S, Mangla V, Yadav A, Mehta N, Nundy S. Why do people leave against medical advice and what happens to them later? A study on 50 consecutive patients in India. Curr Med Res Pract. 2017.doi:10.1016/j.cmrp.2017.09.008.
47. Golhar A, Ray S, Haugk B, Singhvi SK. Cytogenetically confirmed primary Ewing’s sarcoma of the pancreas. BMJ Case Rep. 2017. doi:10.1136/bcr-2017-219219.
48. Ray S, Bhat BK, Yadav A, Nundy S. Isolated dilatation of the cystic duct-Type VI choledochal cyst: A rare case presentation and review of literature. J Surg Case Rep. 2017;4:1-4.
49. Ray S, Yadav A, Nundy S. Massive splenic artery aneurysm with aneurysmal dilatation of the portal vein and splenic infarct. J Case Rep Images Surg. 2017;3:1-5.
50. Ray S, Anila T, Jha SK, Rawat S, Rawat KS, Singhvi SK. Is the absence of right hepatic vein opening into inferior vena cava a contraindication for right lobe liver donation in Living donor liver transplantation? Common hepatic venous trunk-A rare hepatic vein anomaly: A case report and review. Int J Surg Case Rep. 2017;30:159-61.
51. Ray S, Mehta N, Lalwani S, Mangla V, Mehrotra S, Nundy S. Management of corrosive oesophageal injuries: A review. Bhutan Health Journal. 2016;2:27-35
52. Ray S, Shah I, Nundy S. Our responses to the letters on the articles “The research output from Indian medical institutions from 2005 to 2014. Curr Med Res Pract. 2016. http://dx.doi.org/10.1016/j.cmrp.2016.06.001(July 2016)
53. Ray S, Shah I, Nundy S. Our responses to the letters on the articles “The research output from Indian medical institutions from 2005 to 2014. Curr Med Res Pract. 2016. http://dx.doi.org/10.1016/j.cmrp.2016.06.001(May 2016)
54. Ray S, Shah I, Nundy S. The research output from Indian medical institutions from 2005 to 2014. Curr Med Res Pract. 2016. http://dx.doi.org/10.1016/j.cmrp.2016.04.002
55. Ray S. Book review: The forest of enchantments (Chitra Banerjee Divakaruni). J Med Evid 2021;2:198