Staff Profile

I am a consultant HPB and Transplant surgeon at the Freeman hospital in Newcastle upon Tyne.

I underwent my higher surgical training in the Scotland followed by HPB fellowships in Auckland, Edinburgh and Leeds. My clinical areas of interests are pancreatic cancer and acute pancreatitis. I have a strong research portfolio with 200 publications and currently hold a position of Associate professor in the University of Auckland, New Zealand and Senior Clinical Lecturer, Newcastle University. I have a particular interest in systematic reviews and metaanalysis with close to 100 systematic reviews published on topics related to HPB Surgery

I also hold the current positions in National and International organisations

Vice Chair: Surgical Specialist Board| Royal College of Surgeons of Edinburgh

Committee member: Pancreas Clinical Research Group| British Society of Gastroenterology

Research chair: Pancreatic Society of Great Britain and Ireland

Guidelines and Quality of Care committee member: European Pancreas Club

Scientific and Research Committee member: European Hepatopancreatobiliary association

Major Awards

2022     National Clinical Impact award for clinical excellence (NHS England) 2022-2027

2021     Pancreatic Cancer UK Research Innovation Award

2019     James Nicholson award. PSGBI Annual Meeting

2018     Excellence in Clinical Care award, Auckland district Health Board, Auckland, NZ

Academic & Research Awards

2017     New Zealand Association of Gastroenterologists, Pump Priming Grant $5000

2018     Auckland District Health Board, A+ Award $30,000

2020     Pancreatic Society of Great Britain and Ireland (PSGBI) Pump-priming Grant. £10,500

2020     AUGIS/PSGBI Grant, Research funding for COVIDPAN study £3000

2021     Pancreatic cancer UK Research and Innovation Grant £ 98,000

2021     Health Research Council, NZ Career development award $200,000

2022     Pancreas North Charity Grant £10,000

2022     Charlie Bear Charity Grant, Newcastle hospital Charity Trust £68,000

2022     GUTS Charity/ASGBI Grant £6,000

2022     Newcastle hospital Charity Grant, GEMAP study £11,000

2022     Newcastle hospital Charity Grant, PANCARER Study £19,000

2022   Newcastle hospitals charity Grant, HES data on Pancreatitis during COVID Pandemic £11,000

2023     RCSED Pump priming Grant £10,000

2023 NIHR research for patient benefit (RfPB) grant £349,000

2024 Newcastle hospitals charity Grant, Sarcopenia in Acute Pancreatitis £27,500

At a postgraduate level I undertake regular presentations to surgical trainees in the Northern Deanery through the North East Surgical Training Academy (NESTAC) and invited presentation on topics related to HPB surgery to Roux Group, the largest HPB and UGI UK-wide, trainee-led collaborative.

At the Newcastle university level, I have been recently appointed as an examiner for MRes dissertations submitted to the graduate school. I currently supervise 2 MD students

I am currently an E-tutor for the online learning master's programme (ChM, General Surgery) run by The Royal College of Surgeons of Edinburgh and the University of Edinburgh. I teach the module on general surgical procedures in transplant patients.

I am founding chair of Foundation Trainee Surgical Society (FTSS) for the North-East of England endorsed by Royal College of Surgeons of Edinburgh. FTSS undertakes regular webinars and basic surgical skills course for Foundations trainees in the North East.

I am currently a clinical supervisor for teaching fellows and have undertaken the Educational supervisor course to enable me to provide supervision in accordance to the gold guide. I underwent a formal peer review of my teaching techniques with excellent feedback. I have a strong interest in teaching and very keen to take on a prominent role over the next few years. 

• Articles

  • Pandanaboyana S, Knoph CS, Olesen SS, Jones M, Lucocq J, Samanta J, Talukdar R, Capurso G, de-Madaria E, Yadav D, Siriwardena AK, Windsor J, Drewes AM, Nayar M, on behalf of the PAINAP Collaborative. Opioid analgesia and severity of acute pancreatitis: An international multicentre cohort study on pain management in acute pancreatitis. United European Gastroenterology Journal 2024, epub ahead of print.
  • Joseph N, Robertson F, Lucocq J, Pande R, Powell-Brett S, Swainston K, Sharp L, Exley C, Roberts K, Pandanaboyana S. A Multicentre Prospective Evaluation of Health-Related Quality of Life and of Patient Related Outcomes in Pancreatic and Peripancreatic Cancer: PROMCAN study. HPB 2024, epub ahead of print.
  • McClements J, Valle J, Blackburn L, Brooks A, Dasari B, Jones C, Harrison E, Malik H, Pandanaboyana S, Arrori S, Hamady Z, Gomez D. Variation in treatment of intrahepatic cholangiocarcinoma: a nationwide multicentre study. British Journal Of Surgery 2023, 110, 1673-1676.
  • Al-Lewas D, Baxter N, Lim W, Robertson F, Ratnayake B, Samanta J, Capurso G, Drewes A, Windsor J, Pandanaboyana S. The safety and efficacy of epidural anaesthesia in acute pancreatitis: a systematic review and meta-analysis. HPB 2023, 25(2), 162-171.
  • Lavikainen L, Guyatt G, Sallinen V, Couban R, Singh T, Lee Y, Ahopelto K, Blanker M, Cardenas J, Cartwright R, Craigie S, Gomaa H, Pandanaboyana S, Pourjamal N, Ratnayake C, Wang Y, Yao L, Tikkinen K. Systematic Reviews and Meta-analyses of the Procedure-specific Risks of Thrombosis and Bleeding in General Abdominal, Colorectal, Upper Gastrointestinal, and Hepatopancreatobiliary Surgery. Annals of Surgery 2023, 279(2), 213-225.
  • Balakrishnan A, Barmpounakis P, Demiris N, Jah A, Pandanaboyana S, Adsay V. Surgical outcomes of gallbladder cancer: the OMEGA retrospective, multicentre, international cohort study. EClinicalMedicine 2023.
  • Lim WB, Robertson FP, Nayar MK, Sharp L, Nandhra S, Pandanaboyana S. Social deprivation does not impact on acute pancreatitis severity and mortality: a single-centre study. BMJ Open Gastroenterology 2023, 10(1), e001035.
  • Lavikainen L, Guyatt G, Cartwright R, Singh T, Pandanaboyana S, Pourjamal N, Khamani N, Tikkinen K. Risk of thrombosis and bleeding in gynecologic noncancer surgery: systematic review and meta-analysis. Am J Obstet Gynecol 2023.
  • Lavikainen L, Guyatt G, Kamani N, Pandanaboyana S, Tahtinen R, Tikkinen K. Risk of thrombosis and bleeding in gynecologic cancer surgery: systematic review and meta-analysis. Am J Obstet Gynecol 2023.
  • Robertson F, Pandanaboyana S. Redefining resectability in pancreatic cancer after neoadjuvant therapy: are we any closer?. Hepatobiliary Surgery and Nutrition 2023, 12, 131-134.
  • Spiers H, Lancellotti F, Pandanaboyana S, Frampton A, Jegatheeswaran S, Siriwardena A. Irreversible Electroporation for Liver Metastases from Colorectal Cancer: A Systematic Review. Cancers 2023.
  • Capurso G, Lauri G, Archibugi L, Hegyi P, Papachristou G, Pandanaboyana S, de-Madaria E. Clinical usefulness of scoring systems to predict severe acute pancreatitis: A systematic review and meta-analysis with pre and post-test probability assessment. UEG Journal 2023.
  • Sharp L, Mentor K, Deane J, Watson E, Roberts KJ, Silva M, Phillips M, Siriwardena AK, Hammond J, Bradshaw A, Exley C, Pandanaboyana S. Assessing impact, needs and quality-of-life among informal carers of people with pancreatic cancer, a prospective study: the PAN-CARER study protocol. BMJ open 2023, 13(5), e068178.
  • Varghese C, Wells CI, Lee S, Pathak S, Siriwardena AK, Pandanaboyana S. Systematic review of the incidence and risk factors for chyle leak after pancreatic surgery. Surgery. Surgery 2022, 171(2), 490-497.
  • Varghese C, Nayar M, Pandanaboyana S. SARS-CoV-2 pandemic has impacted on patterns of aetiology for acute pancreatitis and management of gallstone pancreatitis in the UK. Gut 2022, 71(12), 2602-2605.
  • Malik AK, Varghese C, Pandanaboyana S, Sen G, Robinson S, McPherson S, Dyson J, Manas DM, Masson S, Hammond JS. Risk factors for decompensation and death following umbilical hernia repair in patients with end-stage liver disease. European Journal of Gastroenterology & Hepatology 2022, 34(10), 1060-1066.
  • Robertson R, Russell K, Pandanaboyana S, Wu D, Windsor J. Postoperative nutritional support after pancreaticoduodenectomy in adults. Cochrane Database of Systematic Reviews 2022, 2022(6), CD014792.
  • Halle-Smith JM, Pande R, Hall L, Hodson J, Roberts KJ, Arshad A, Connor S, Conlon KCP, Dickson EJ, Giovinazzo F, Harrison E, de Liguori Carino N, Hore T, Knight SR, Loveday B, Magill L, Mirza D, Mitta A, Pandanaboyana S, Perry RJ, Pinkney T, Samra J, Siriwardena AK, Satoi S, Skipworth J, Stattner S, Sutcliffe RP, Tingstedt B, Roberts KJ. Perioperative interventions to reduce pancreatic fistula following pancreatoduodenectomy: meta-analysis. British Journal of Surgery 2022, 109(9), 812-821.
  • Ratnayake B, Pendharkar SA, Connor S, Koea J, Sarfati D, Dennett E, Pandanaboyana S, Windsor JA. Patient volume and clinical outcome after pancreatic cancer resection: A contemporary systematic review and meta-analysis. Surgery 2022, 172(1), 273-283.
  • Halle-Smith JM, Pande R, Powell-Brett S, Pathak S, Pandanaboyana S, Smith AM, Roberts KJ. Oral feeding in postoperative pancreatic fistula after pancreatoduodenectomy: meta-analysis. BJS Open 2022, 6(4), zrac099.
  • Kulkarni R, Kabir I, Hodson J, Raza S, Shah T, Pandanaboyana S, Dasari BVM. Impact of the extent of resection of neuroendocrine tumor liver metastases on survival: A systematic review and meta-analysis. Annals of Hepato-Biliary Pancreatic Surgery 2022, 26(1), 31-39.
  • Oppong KW, Nayar MK, Bekkali NLH, Maheshwari P, Haugk B, Darne A, Manas DM, French JJ, White S, Sen G, Pandanaboyana S, Charnley RM, Leeds JS. Impact of prior biliary stenting on diagnostic performance of endoscopic ultrasound for mesenteric vascular staging in patients with head of pancreas and periampullary malignancy. BMJ Open Gastroenterology 2022, 9(1), e000864.
  • Geh D, Watson R, Sen G, French JJ, Hammond J, Turner P, Hoare T, Anderson K, Mcneil M, Mcpherson S, Masson S, Dyson J, Donnelly M, Macdougal L, Patel P, Hudson M, Anstee QM, White S, Robinson S, Pandanaboyana S, Walker L, Mccain M, Bury Y, Raman S, Burt A, Parkinson D, Haugk B, Darne A, Wadd N, Asghar S, Mariappan L, Margetts J, Stenberg B, Scott J, Littler P, Manas DM, Reeves HL. COVID-19 and liver cancer: Lost patients and larger tumours. BMJ Open Gastroenterology 2022, 9(1), e000794.
  • Mentor K, Lembo J, Carswell S, Jones M, Pandanaboyana S. Body surface gastric mapping to determine gastric motility patterns associated with delayed gastric emptying after pancreaticoduodenectomy. Gastric Electric Mapping after Pancreatoduodenectomy study protocol. BMJ Open 2022, 12(12), e066864.
  • Thavanesan N, White S, Lee S, Ratnayake B, Oppong KW, Nayar M, Sharp L, Drewes A, Capurso G, DeMadaria E, Siriwardena AK, Windsor JA, Pandanaboyana S. Analgesia in the Initial Management of Acute Pancreatitis: A Systematic Review and Meta-Analysis of Randomised Controlled Trials. World Journal of Surgery 2022, 46, 878-890.
  • Chong E, Ratnayake B, Dasari B, Pathak S, Siriwadena A, Pandanaboyana S. Adjuvant Chemotherapy in the Treatment of Intraductal Papillary Mucinous Neoplasms of the Pancreas: Systematic Review and Meta-Analysis. World Journal of Surgery 2022, 46, 223-234.
  • Manuel-Vazquez A, Balakrishnan A, Agami P, Andersson B, Berrevoet F, Besselink MG, Boggi U, Caputo D, Carabias A, Carrion-Alvarez L, Franco CC, Coppola A, Dasari BVM, Diaz-Mercedes S, Feretis M, Fondevila C, Fusai GK, Garcea G, Gonzabay V, Bravo MAG, Gorris M, Hendrikx B, Hidalgo-Salinas C, Kadam P, Karavias D, Kauffmann E, Kourdouli A, La Vaccara V, van Laarhoven S, Leighton J, Liem MSL, Machairas N, Magouliotis D, Mahmoud A, Marino MV, Massani M, Requena PM, Mentor K, Napoli N, Nijhuis JHT, Nikov A, Nistri C, Nunes V, Ruiz EO, Pandanaboyana S, Saborido BP, Pohnan R, Popa M, Perez BS, Bueno FS, Serrablo A, Serradilla-Martin M, Skipworth JRA, Soreide K, Symeonidis D, Zacharoulis D, Zelga P, Aliseda D, Santiago MJC, Mancilla CF, Fragua RL, Hughes DL, Llorente CP, Lesurtel M, Gallagher T, Ramia JM. A scoring system for predicting malignancy in intraductal papillary mucinous neoplasms of the pancreas: a multicenter EUROPEAN validation. Langenbeck's Archives of Surgery 2022, 407, 3447-3455.
  • Lavikainen LI, Guyatt GH, Lee Y, Couban RJ, Luomaranta AL, Sallinen VJ, Kalliala IEJ, Karanicolas PJ, Cartwright R, Aaltonen RL, Ahopelto K, Aro KM, Beilmann-Lehtonen I, Blanker MH, Cardenas JL, Craigie S, Galambosi PJ, Garcia-Perdomo HA, Ge FZ, Gomaa HA, Huang L, Izett-Kay ML, Joronen KM, Karjalainen PK, Khamani N, Kilpelainen TP, Kivela AJ, Korhonen T, Lampela H, Mattila AK, Najafabadi BT, Nykanen TP, Nysten C, Oksjoki SM, Pandanaboyana S, Pourjamal N, Ratnayake CBB, Raudasoja AR, Singh T, Tahtinen RM, Vernooij RWM, Wang Y, Xiao Y, Yao L, Haukka J, Tikkinen KAO. Systematic reviews of observational studies of Risk of Thrombosis and Bleeding in General and Gynecologic Surgery (ROTBIGGS): introduction and methodology. Systematic Reviews 2021, 10(1), 264.
  • Pandanaboyana S, Moir J, Leeds JS, Oppong K, Kanwar A, Marzouk A, Belgaumkar A, Gupta A, Siriwardena AK, Haque AR, Ivanov B, Parmar C, Halloran CM, Caruana C, Borg CM, Gomez D, Damaskos D, Karavias D, Finch G, Ebied H, Pine JK, Skipworth JRA, Milburn J, Latif J, Apollos JR, Kafsi JE, Windsor JA, Roberts K, Wang K, Ravi K, Coats MV, Hollyman M, Phillips M, Okocha M, Wilson MSJ, Ameer NA, Kumar N, Shah N, Lapolla P, Magee C, Al-Sarireh B, Lunevicius R, Benhmida R, Singhal R, Balachandra S, Atici SD, Jaunoo S, Dwerryhouse S, Boyce T, Charalampakis V, Kanakala V, Abbas Z, Nayar M, Collaborative Covidpan. SARS-CoV-2 infection in acute pancreatitis increases disease severity and 30-day mortality: COVID PAN collaborative study. Gut 2021, 70(6), 1061-1069.
  • Akter N, Ratnayake B, Joh D, Chan SJ, Boner E, Pandanaboyana S. Postoperative Pain Relief after Pancreatic Resection: Systematic Review and Meta-Analysis of Analgesic Modalities. World Journal of Surgery 2021, 45, 3165-3173.
  • Nayar MK, Bekkali NLH, Bourne D, Young S, Leeds JS, Oppong KW, Logue JL, Sen G, French JJ, Scott J, Cressey D, Pandanaboyana S, Charnley RM. Novel multidisciplinary hub-and-spoke tertiary service for the management of severe acute pancreatitis. BMJ Open Gastroenterology 2021, 8(1), e000501.
  • Lagnado A, Leslie J, Ruchaud-Sparagano MH, Victorelli S, Hirsova P, Ogrodnik M, Collins AL, Grazia Vizioli M, Habiballa L, Saretzki G, Evans SA, Salmonowicz H, Hruby A, Geh D, Pavelko KD, Dolan D, Reeves HL, Grellscheid S, Wilson CH, Pandanaboyana S, Doolittle M, Von Zglinicki T, Oakley F, Gallage S, Wilson CL, Birch J, Carroll B, Chapman J, Heikenwalder M, Neretti N, Khosla S, Masuda CA, Tchkonia T, Kirkland JL, Jurk D, Mann DA, Passos JF. Neutrophils induce paracrine telomere dysfunction and senescence in ROS-dependent manner. The EMBO Journal 2021, 40(9), e106048.
  • Ratnayake B, Al-leswas D, Littler P, Sen G, Manas D, Pandanaboyana S. Margin Accentuation Irreversible Electroporation in Stage III Pancreatic Cancer: A Systematic Review. Cancers 2021, 13(13), 3212.
  • Tingle SJ, Thompson ER, Figueiredo RS, Mahendran B, Pandanaboyana S, Wilson CH. Machine perfusion in liver transplantation: a network meta-analysis. Cochrane Database of Systematic Reviews 2021, 2021(7).
  • Ammar K, Varghese C, Prabakaran V, Robinson S, Pathak S, Dasari BVM, Pandanaboyana S. Impact of routine nasogastric decompression versus no nasogastric decompression after pancreaticoduodenectomy on perioperative outcomes: meta-analysis. BJS Open 2021, 5(6), zrab111.
  • Ammar Khaled, Leeds J, Ratnayake Bathiya, French Jeremy, Nayar Manu, Oppong Kofi, Loveday Benjamin, Pandanaboyana Sanjay. Impact of pancreatic enzyme replacement therapy on short- and long-term outcomes in advanced pancreatic cancer: meta-analysis of randomised controlled trials. Expert Reviews In Gastroenterology and Hepatology 2021, 15(8), 941-948.
  • Varghese C, Bhat S, Wang TH, O'Grady G, Pandanaboyana S. Impact of gastric resection and enteric anastomotic configuration on delayed gastric emptying after pancreaticoduodenectomy: a network meta-analysis of randomized trials. British Journal of Surgery 2021, 5(3).
  • Pandanaboyana S. Exploring Koch’s postulate for SARS-CoV-2-induced acute pancreatitis: is it all about the ACE?. British Journal of Surgery 2021, 108(8), 879-881.
  • Perrin J, Ratnayake R, Wells C, Windsor JA, Loveday B, Maclennan N, Lindsay H, Pandanaboyana S. Epidural Versus Transabdominal Wall Catheters: A Comparative Study of Outcomes After Pancreatic Resection. Journal of Surgical Research 2021, 259, 473-479.
  • Chong E, Ratnayake CB, Saikia S, Nayar M, Oppong K, French JJ, Windsor JA, Pandanaboyana S. Endoscopic transmural drainage is associated with improved outcomes in disconnected pancreatic duct syndrome: a systematic review and meta-analysis. BMC Gastroenterology 2021, 21(1), 87.
  • Covidsurg Colloborative, Pandanaboyana Sanjay. Elective Cancer Surgery in COVID-19-Free Surgical Pathways During the SARS-CoV-2 Pandemic: An International, Multicenter, Comparative Cohort Study. Journal of Clinical Oncology 2021, 39(1), 66-78.
  • Larkins K, Rowcroft A, Pandanaboyana S, Loveday BPT. A systematic scoping review of the initial experience with laparoscopic radical antegrade modular pancreatosplenectomy for pancreatic malignancy. Surgical Endoscopy 2021, 35, 4930-4944.
  • Ratnayake B, Savastyuk AY, Nayar M, Wilson CH, Windsor JA, Roberts K, French JJ, Pandanaboyana S. Recurrence Patterns for Pancreatic Ductal Adenocarcinoma after Upfront Resection Versus Resection Following Neoadjuvant Therapy: A Comprehensive Meta-Analysis. Journal of Clinical Medicine 2020, 9(7), e2132.
  • Bundred JR, Kamarajah SK, Hammond JS, Wilson CH, Prentis J, Pandanaboyana S. Prehabilitation prior to surgery for pancreatic cancer: A systematic review. Pancreatology 2020, 20(6), 1243-1250.
  • Mentor K, Ratnayake B, Alessandri G, Sen G, French JJ, Manas DM, Hammond J, Pandanaboyana S. Meta-Analysis and Meta-Regression of Risk Factors for Surgical Site Infections in Hepatic and Pancreatic Resection. World Journal of Surgery 2020, 44, 4221-4230.
  • COVIDSurg Colloborative, et al. Delaying surgery for patients with a previous SARS-CoV-2 infection. British Journal of Surgery 2020, 107(12), e601-e602.
  • Ou C, Rektorysova M, Othman B, Windsor JA, Pandanaboyana S, Loveday BPT. Benchmarking Performance in Pancreatic Surgery: a Systematic Review of Published Quality Metrics. Journal of Gastrointestinal Surgery 2020, 25, 834-842.
  • Ratnayake CBB, Kamarajah S, Loveday BPT, White S, Nayar M, Oppong K, French JJ, Windsor JA, Pandanaboyana S. A Network Meta-analysis of Surgery for Chronic Pancreatitis: Impact on Pain and Quality of Life. Journal of Gastrointestinal Surgery 2020, 24, 2865-2873.
  • Bell R, Farid S, Pandanaboyana S, Upasani V, Baker R, Ahmad N. The evolution of donation after circulatory death renal transplantation: A decade of experience. Nephrology Dialysis Transplantation 2019, 34(10), 1788-1798.
  • Ratnayake CBB, Wells C, Olsson M, Windsor JA, Pandanaboyana S. Sarcopenic obesity and post-operative morbidity after pancreatic surgery: a cohort study. ANZ Journal of Surgery 2019, 89(12), 1587-1592.
  • Pandanaboyana S, Bell R, White A, Pathak S, Hidalgo E, Lodge P, Prasad R, Toogood G. Impact of parenchymal preserving surgery on survival and recurrence after liver resection for colorectal liver metastasis. ANZ Journal of Surgery 2018, 88(1-2), 66-70.
  • Bell R, Pandanaboyana S, Nisar S, Upasani V, Toogood G, Lodge JP, Prasad KR. The Impact of Advancing Age on Recurrence and Survival Following Major Hepatectomy for Colorectal Liver Metastases. Journal of Gastrointestinal Surgery 2017, 21(2), 266-274.
  • Bell R, Pandanaboyana S, Lodge JPA, Prasad KR, Jones R, Hidalgo E. Primary liver resection for patients with cirrhosis and hepatocellular carcinoma: the role of surgery in BCLC early (A) and intermediate stages (B). Langenbeck's Archives of Surgery 2017, 402(4), 575-583.
  • Vallance AE, Young AL, Pandanaboyana S, Lodge JP, Smith AM. Posterior superior mesenteric artery first dissection versus classical approach in pancreaticoduodenectomy: Outcomes of a case-matched study. Pancreas 2017, 46(2), 276-281.
  • Martinez-Lopez S, Upasani V, Pandanaboyana S, Attia M, Toogood G, Lodge P, Hidalgo E. Delayed referral to specialist centre increases morbidity in patients with bile duct injury (BDI) after laparoscopic cholecystectomy (LC). International Journal of Surgery 2017, 44, 82-86.
  • Pandanaboyana S, Bell R, Shah N, Lodge JPA, Hidalgo E, Toogood GJ, Prasad KR. A cost-effective analysis of fibrin sealants versus no sealant following open right hemihepatectomy for colorectal liver metastases. ANZ Journal of Surgery 2017, 87(6), E11-E14.
  • Pandanaboyana S, Longbotham D, Hostert L, Attia M, Baker R, Menon K, Ahmad N. Transplantation of liver and kidney from donors with malignancy at the time of donation: An experience from a single centre. Transplant International 2016, 29(1), 73-80.
  • Pathak S, Palkhi E, Dave R, White A, Pandanaboyana S, Prasad KR, Lodge JPA, Toogood GJ. Relationship between primary colorectal tumour and location of colorectal liver metastases. ANZ Journal of Surgery 2016, 86(5), 408-410.
  • Pathak S, Pandanaboyana S, Daniels I, Smart N, Prasad KR. Obesity and colorectal liver metastases: Mechanisms and management. Surgical Oncology 2016, 25(3), 246-251.
  • Pike TW, Pandanaboyana S, Hope-Johnson T, Hostert L, Ahmad N. Ureteric reconstruction for the management of transplant ureteric stricture: A decade of experience from a single centre. Transplant International 2015, 28(5), 529-534.
  • Navadgi S, Pandanaboyana S, Windsor JA. Surgery for Acute Pancreatitis. Indian Journal of Surgery 2015, 77(5), 446-452.
  • Pandanaboyana S, Bell R, Bartlett AJ, McCall J, Hidalgo E. Meta-analysis of Duct-to-duct versus Roux-en-Y biliary reconstruction following liver transplantation for primary sclerosing cholangitis. Transplant International 2015, 28(4), 485-491.
  • Pandanaboyana S, White A, Pathak S, Hidalgo EL, Toogood G, Lodge JP, Prasad KR. Impact of Margin Status and Neoadjuvant Chemotherapy on Survival, Recurrence After Liver Resection for Colorectal Liver Metastasis. Annals of Surgical Oncology 2015, 22(1), 173-179.
  • Pandanaboyana S, Bell R, Hidalgo E, Toogood G, Prasad KR, Bartlett A, Lodge JP. A systematic review and meta-analysis of portal vein ligation versus portal vein embolization for elective liver resection. Surgery 2015, 157(4), 690-698.
  • Bell R, Pandanaboyana S, Hanif F, Shah N, Hidalgo E, Lodge JPA, Toogood G, Prasad KR. A cost effective analysis of a laparoscopic versus an open left lateral sectionectomy in a liver transplant unit. HPB 2015, 17(4), 332-336.
  • Sanjay P, Watt DG, Wigmore SJ. Systematic review and meta-analysis of haemostatic and biliostatic efficacy of fibrin sealants in elective liver surgery. Journal of Gastrointestinal Surgery 2013, 17(4).
  • Watt DG, Pandanaboyana S, Herrington CS, Tait IS. Pancreatic glucagonoma metastasising to the right ovary five years after initial surgery: a case report. Journal of Pancreas 2013, 14(5), 510-514.
  • Sanjay P, Ong I, Powell JJ, Wigmore SJ. Meta-analysis of intermittent pringle manoeuvre versus no Pringle manoeuvre in elective liver surgery. ANZ Journal of Surgery 2013, 83, 719-23.
  • Latham j, Sanjay P, Watt DG, Tait IS. Groove pancreatitis: a case series and review of the literature. Scottish Medical Journal 2013, 58(1), e28-31.
  • Sanjay P, Mittapalli D, Marioud A, White RD, Ram R, Alijani A. Clinical outcomes of a percutaneous cholecystostomy for acute cholecystitis: a multicentre analysis. HPB 2013, 15(7), 511-516.
  • Sanjay P, Marioud A, Woodward A. Anaesthetic preference and outcomes for elective inguinal hernia repair: a comparative analysis of public and private hospitals. Hernia 2013, 17(6).
  • Polignano FM, Sanjay P, Henderson NA, Tait IS. Totally laparoscopic strategies for the management of colorectal cancer with synchronous liver metastasis. Surgical endoscopy 2012.
  • Sanjay P, Kellner M, Tait IS. The role of interventional radiology in the management of surgical complications after pancreatoduodenectomy. HPB 2012, 14(12), 812-17. In Preparation.
  • Sanjay P, de Figueiredo RS, Leaver H, Ogston S, Kulli C, Polignano FM, Tait IS. Preoperative serum C-reactive protein levels and post-operative lymph node ratio are important predictors of survival after pancreaticoduodenectomy for pancreatic ductal adenocarcinoma. Journal of Pancreas 2012, 10(13).
  • Sanjay p, Watt DG, Ogston SA, Alijani A, Windsor JA. Meta-analysis of Prolene Hernia System mesh versus Lichtenstein mesh in open inguinal hernia repair. Surgeon 2012, 10(5), 283-9.
  • Watt DG, Sanjay P, Walsh SV, Young JA, Alijani A. Mesenteric lipoma causing small bowel perforation: a case report and review of literature. Scottish Medical Journal 2012, 57(4).
  • Russell P, Sanjay P, Dirkzwager I, Chau K, Johnston P. Hepatocellular carcinoma during pregnancy: case report and review of the literature. NewZealand Medical Journal 2012, 125(1353), 141-5.
  • Sanjay P, Takaori K, Govil S, Shrikhande SV, Windsor JA. Artery-first' approaches to pancreatoduodenectomy. British Journal of Surgery 2012, 99, 1027-35.
  • Sanjay P, Tagolao S, Dirkzwager I, Bartlett A. A survey of the accuracy of interpretation of intraoperative cholangiograms. HPB (Oxford) 2012, 14, 673-6. In Preparation.
  • Sanjay P, Leaver H, Shaikh I, Woodward A. Lichtenstein hernia repair under different anaesthetic techniques with special emphasis on outcomes in older people. Australas J Ageing 2011, 30(2).
  • Sanjay P, Weerakoon R, Shaikh IA, Bird T, Paily A, Yalamarthi S. A 5-year analysis of readmissions following elective laparoscopic cholecystectomy - cohort study. Int J Surg 2011, 9(1).
  • Sanjay P, Kulli C, Polignano FM, Tait IS. Optimal surgical technique, use of intra-operative cholangiography (IOC), and management of acute gallbladder disease: the results of a nation-wide survey in the UK and Ireland. Ann R Coll Surg Engl 2010, 92(4).
  • Sanjay P, Fawzi A, Fulke JL, Kulli C, Tait IS, Zealley I, Polignano FM. Late post pancreatectomy haemorrhage. Risk factors and modern management. Journal of Pancreas 2010, 5(11).
  • Al-Jabri T, Sanjay P, Shaikh I, Woodward A. Inflammatory myofibroblastic pseudotumour of the liver in association with gall stones - a rare case report and brief review. Diagnostic Pathology 2010, 18(5), 53.
  • Sanjay P, Moore J, Saffouri E, Ogston SA, Kulli C, Polignano FM, Tait IS. Index laparoscopic cholecystectomy for acute admissions with cholelithiasis provides excellent training opportunities in emergency general surgery. Surgeon 2010, 8(3).
  • Sanjay P, Fawzi A, Kulli C, Polignano FM, Tait IS. Impact of methicillin-resistant Staphylococcus Aureus (MRSA) infection on patient outcome after pancreatoduodenectomy (PD)--a cause for concern?. Pancreas 2010, 39(8).
  • Appleton ND, Bosanquet D, Morris-Stiff G, Ahmed H, Sanjay P, Lewis MH. Extra-anatomical bypass grafting--a single surgeon's experience. Ann R Coll Surg Engl 2010, 92(6). In Preparation.
  • Sanjay P, Fulke JL, Exon DJ. 'Critical view of safety' as an alternative to routine intraoperative cholangiography during laparoscopic cholecystectomy for acute biliary pathology. Journal of Gastrointestinal Surgery 2010, 14(8).
  • Sanjay P, Fulke JL, Shaikh IA, Woodward A. Anatomical differentiation of direct and indirect inguinal hernias: Is it worthwhile in the modern era?. Clinical Anatomy 2010, 23(7).
  • Sanjay P, Yeeting S, Whigham C, Judson H, Kulli C, Polignano F, Tait I. Management guidelines for gallstone pancreatitis. Are the targets achievable?. Journal of Pancreas 2009, 8(10).
  • Reid TD, Sanjay P, Woodward A. Local anesthetic hernia repair in overweight and obese patients. World Journal of Surgery 2009, 33(1).
  • Sanjay P, Woodward A. Local anaesthetic inguinal hernia repair performed under supervision: early and long-term outcomes. Ann R Coll Surg Engl 2009, 91(8).
  • Dutta S, Sanjay P, Jones ML. Diagnosis and treatment of giant lateral abdominal wall haematoma after blunt trauma: a case report. Cases Journal 2009, 2(9358).
  • Shaikh IA, Sanjay P, Joga K, Yalamarthi S, Daniel T, Amin AI. Are we performing enough emergency laparoscopic cholecystectomies? An experience from a district general hospital. International Journal of Surgery 2009, 7(5).
  • Sanjay P, Shaikh I, Rivron R, Woodward A. A new structured work observation programme for prospective medical students. Medical Teacher 2009, 31(10).
  • Sanjay P, Woodward A. Local versus general anaesthesia with Prolene Hernia System mesh for inguinal hernia repair: early and long-term outcomes. Digestive surgery 2008, 25(5).
  • Sanjay P, Yeeting S, Whigham C, Judson H, Polignano F, Tait I. Endoscopic sphincterotomy and interval cholecystectomy are reasonable alternatives to index cholecystectomy in severe acute gallstone pancreatitis (GSP). Surgical endoscopy 2008, 22(8).
  • Sanjay P, Woodward A. Single strenuous event: does it predispose to inguinal herniation?. Hernia 2007, 11(6).
  • Sanjay P, Woodward A. Inguinal hernia repair: local or general anaesthesia?. Ann R Coll Surg Engl 2007, 89(5).
  • Sanjay P, Lewis MH. Deep vein thrombosis and pulmonary embolus associated with a ruptured popliteal aneurysm - a cautionary note. World journal of Emergency Surgery 2007, 20(2).
  • Sanjay P, Dodds A, Miller E, Arumugam PJ, Woodward A. Cancelled elective operations: an observational study from a district general hospital. J Health Organ Manag 2007, 21(1).
  • Sanjay P, Woodward A. A survey of inguinal hernia repair in Wales with special emphasis on laparoscopic repair. Hernia 2007, 11(5).
  • Sanjay P, Harris D, Jones P, Woodward A. Randomized controlled trial comparing prolene hernia system and lichtenstein method for inguinal hernia repair. ANZ J Surg 2006, 76(7).
  • Sanjay P, Jones P, Woodward A. Inguinal hernia repair: are ASA grades 3 and 4 patients suitable for day case hernia repair?. Hernia 2006, 10(4).
  • Sanjay P, Reid T, Bowrey D, Woodward A. Defining the position of deep inguinal ring in patients with indirect inguinal hernias. Surg Radiol Anat 2006, 28(2).
  • Ball E, Sanjay P, Woodward A. Comparison of buffered and unbuffered local anaesthesia for inguinal hernia repair: a prospective study. Hernia 2006, 10(2).
  • Sanjay P, Reid T, Davies E, Arumugam PJ, Woodward A. Retrospective comparison of mesh and sutured repair for adult umbilical hernias. Hernia 2005, 9(3).
  • Sanjay P, Raman S, Shannon J, Williams GT, Woodward A. Gastric epithelioid haemangioendothelioma: a rare cause of upper gastrointestinal bleeding. Postgrad Med J 2005, 81(958).
  • Rao GM, Janaki M, Reddy KL, Sanjay P. Primary hypertrophic enteropathy. Indian J Gastroentero 2002, 21(3).
  • Rao GM, Janaki M, Reddy KL, Sanjay P. Primary choriocarcinoma of jejunum. Indian J Gastroenterol 2002, 21(2).

• Book Chapters

  • Windsor JA, Loveday BPT, Pandanaboyana S. Complications of acute pancreatitis. In: Zinner MJ, Ashley SW, ed. Maingots Abdominal Operations. New York: McGraw-Hill Education, 2018.
  • Mittal A, Pandanaboyana S, Windsor JA. Implications of a completely replaced right hepatic artery and pancreatoduodenectomy. In: Case-Based Lessons in the Management of Complex Hepato-Pancreato-Biliary Surgery. Springer International Publishing, 2017, pp.289-295.
  • Pandanaboyana S, Windsor JA. Artery-first approach for pancreatic cancer. In: Pancreatic Cancer: With Special Focus on Topical Issues and Surgical Techniques. Springer Berlin Heidelberg, 2017, pp.207-213.
  • Pandanaboyana S, Griffiths GD. Peripheral vascular disease. In: Greer IA, Ginsberg J, Forbes CD, ed. Women's Vascular Health. Hodder Arnold. New York, 2006, pp.194-217.

• Letters

  • Ratnayake CBB, Wilson CH, Windsor JA, Pandanaboyana S. Re: Management of the pancreatic transection plane after left (distal) pancreatectomy: Expert consensus guidelines by the international study group of pancreatic surgery. Surgery 2021, 169(2), 479-480.
  • Windsor JA, Pandanaboyana S, Bartlett ASJR. Re: Is there an alternative to centralization for pancreatic resection in New Zealand?. ANZ Journal of Surgery 2016, 86(9), 735-735.
  • Mittapalli D, Pandanaboyana S. Percutaneous cholecystostomy for acute cholecystitis: Who should really benefit from this procedure?. HPB 2014, 16(7), 687-678.
  • Wijetunga I, Pandanaboyana S, Farid SG, Ecuyer C, Lewington A, Hostert L, Attia M, Ahmad N. Neonatal kidney donation and transplantation: A realistic strategy for the treatment of end-stage renal disease. Archives of Disease in Childhood: Fetal and Neonatal Edition 2014, 99(6), F518-F519.

• Reviews

  • Chong E, Crowe L, Mentor K, Pandanaboyana S, Sharp L. Systematic review of caregiver burden, unmet needs and quality-of-life among informal caregivers of patients with pancreatic cancer. Supportive Care in Cancer 2023, 31(1), 74.
  • Tingle SJ, Dobbins JJ, Thompson ER, Figueiredo RS, Mahendran B, Pandanaboyana S, Wilson C. Machine perfusion in liver transplantation. Cochrane Database of Systematic Reviews 2023, 9, CD014685.
  • Alrawashdeh W, Kamarajah SK, Gujjuri RR, Cambridge WA, Shrikhande SV, Wei AC, Abu Hilal M, White SA, Pandanaboyana S. Systematic review and meta-analysis of survival outcomes in T2a and T2b gallbladder cancers. HPB 2022.
  • Halle-Smith JM, Pande R, Powell-Brett S, Pathak S, Pandanaboyana S, Smith AM, Roberts KJ. Early oral feeding after pancreatoduodenectomy: a systematic review and meta-analysis. HPB 2022, Epub ahead of print.
  • Pande R, Halle-Smith JM, Thorne T, Hiddema L, Hodson J, Roberts KJ, Arshad A, Connor S, Conlon KCP, Dickson EJ, Giovinazzo F, Harrison E, de Liguori Carino N, Hore T, Knight SR, Loveday B, Magill L, Mirza D, Pandanaboyana S, Perry RJ, Pinkney T, Siriwardena AK, Satoi S, Skipworth J, Stattner S, Sutcliffe RP, Tingstedt B. Can trainees safely perform pancreatoenteric anastomosis? A systematic review, meta-analysis, and risk-adjusted analysis of postoperative pancreatic fistula. Surgery 2022, 172(1), 319-328.
  • Logan K, Pearson F, Kenny RP, Pandanaboyana S, Sharp L. Are older patients less likely to be treated for pancreatic cancer? A systematic review and meta-analysis. Cancer Epidemiology 2022, 80, 102215.
  • Chong E, Ratnayake B, Lee S, French JJ, Wilson C, Roberts KJ, Loveday BPT, Manas D, Windsor J, White S, Pandanaboyana S. Systematic review and meta-analysis of risk factors of postoperative pancreatic fistula after distal pancreatectomy in the era of 2016 International Study Group pancreatic fistula definition. HPB 2021, 23(8), 1139-1151.
  • Ratnayake CBB, Wells CI, Atherton P, Hammond JS, White S, French JJ, Manas D, Pandanaboyana S. Meta-analysis of survival outcomes following surgical and non surgical treatments for colorectal cancer metastasis to the lung. ANZ Journal of Surgery 2021, 91(3), 255-263.
  • Pande R, Halle-Smith JM, Phelan L, Thorne T, Panikkar M, Hodson J, Roberts KJ, Arshad A, Connor S, Conlon KC, Dickson EJ, Giovinazzo F, Harrison E, de Liguori Carino N, Hore T, Knight SR, Loveday B, Magill L, Mirza D, Pandanaboyana S, Perry RJ, Pinkney T, Siriwardena AK, Satoi S, Skipworth J, Stattner S, Sutcliffe RP, Tingstedt B. External validation of postoperative pancreatic fistula prediction scores in pancreatoduodenectomy: a systematic review and meta-analysis. HPB 2021, 24(3), 287-298.
  • Ratnayake CBB, Shah N, Loveday B, Windsor JA, Pandanaboyana S. The Impact of the Depth of Venous Invasion on Survival Following Pancreatoduodenectomy for Pancreatic Cancer: a Meta-analysis of Available Evidence. Journal of Gastrointestinal Cancer 2020, 51(2), 379-386.
  • Ratnayake CB, Bunn A, Pandanaboyana S, Windsor JA. Spinal Cord Stimulation for Management of Pain in Chronic Pancreatitis: A Systematic Review of Efficacy and Complications. Neuromodulation 2020, 23(1), 19-25.
  • Kamarajah SK, Bundred JR, Boyle C, Oo J, Pandanaboyana S, Loveday B. Impact of neoadjuvant therapy on post-operative pancreatic fistula: a systematic review and meta-analysis. ANZ Journal of Surgery 2020, 90(11), 2201-2210.
  • Wells CI, Ratnayake CBB, Mentor K, Sen G, Hammond JS, French JJ, Wilson CH, Manas D, White S, Pandanaboyana S. Haemostatic Efficacy of Topical Agents During Liver Resection: A Network Meta-Analysis of Randomised Trials. World Journal of Surgery 2020, 44, 3461-3469.
  • Ratnayake CBB, Wells CI, Kamarajah SK, Loveday B, Sen G, French JJ, White S, Pandanaboyana S. Critical appraisal of the techniques of pancreatic anastomosis following pancreaticoduodenectomy: A network meta-analysis. International Journal of Surgery 2020, 73, 72-77.
  • Kamarajah SK, Bundred JR, Alessandri G, Robinson SM, Wilson CH, French JJ, Pandanaboyana S. A Systematic Review and Network-Meta-Analysis of Gastro-Enteric Reconstruction Techniques Following Pancreatoduodenectomy to Reduce Delayed Gastric Emptying. World Journal of Surgery 2020, 44, 2314-2322.
  • Al-Diery H, Phillips A, Evennett N, Pandanaboyana S, Gilham M, Windsor JA. The Pathogenesis of Nonocclusive Mesenteric Ischemia: Implications for Research and Clinical Practice. Journal of Intensive Care Medicine 2019, 34(10), 771-781.
  • Wells CI, Ratnayake CBB, Perrin J, Pandanaboyana S. Prophylactic Negative Pressure Wound Therapy in Closed Abdominal Incisions: A Meta-analysis of Randomised Controlled Trials. World Journal of Surgery 2019, 43(11), 2779-2788.
  • Barreto SG, Dirkzwager I, Windsor JA, Pandanaboyana S. Predicting post-operative pancreatic fistulae using preoperative pancreatic imaging: a systematic review. ANZ Journal of Surgery 2019, 89(6), 659-665.
  • Ratnayake CBB, Loveday BP, Windsor JA, Lawrence B, Pandanaboyana S. Patient characteristics and clinical outcomes following initial surgical intervention for MEN1 associated pancreatic neuroendocrine tumours: A systematic review and exploratory meta-analysis of the literature. Pancreatology 2019, 19(3), 462-471.
  • Ratnayake CBB, Wells C, Hammond J, French JJ, Windsor JA, Pandanaboyana S. Network meta-analysis comparing techniques and outcomes of stump closure after distal pancreatectomy. British Journal of Surgery 2019, 106(12), 1580-1589.
  • Ratnayake CB, Biela C, Windsor JA, Pandanaboyana S. Enucleation for branch duct intraductal papillary mucinous neoplasms: a systematic review and meta-analysis. HPB 2019, 21(12), 1593-1602.
  • Barreto SG, Loveday B, Windsor JA, Pandanaboyana S. Detecting tumour response and predicting resectability after neoadjuvant therapy for borderline resectable and locally advanced pancreatic cancer. ANZ Journal of Surgery 2019, 89(5), 481-487.
  • Ironside N, Barreto SG, Loveday B, Shrikhande SV, Windsor JA, Pandanaboyana S. Meta-analysis of an artery-first approach versus standard pancreatoduodenectomy on perioperative outcomes and survival. British Journal of Surgery 2018, 105(6), 628-636.
  • Ratnayake CB, Loveday BP, Shrikhande SV, Windsor JA, Pandanaboyana S. Impact of preoperative sarcopenia on postoperative outcomes following pancreatic resection: A systematic review and meta-analysis. Pancreatology 2018, 18(8), 996-1004.
  • Bell R, Pandanaboyana S, Upasani V, Prasad R. Impact of graft-to-recipient weight ratio on small-for-size syndrome following living donor liver transplantation. ANZ Journal of Surgery 2018, 88(5), 415-420.
  • Ironside N, Bell R, Bartlett A, McCall J, Powell J, Pandanaboyana S. Systematic review of perioperative and survival outcomes of liver resections with and without preoperative portal vein embolization for colorectal metastases. HPB 2017, 19(7), 559-566.
  • Yoo TG, Cranshaw I, Broom R, Pandanaboyana S, Bartlett A. Systematic review of early and long-term outcome of liver resection for metastatic breast cancer: Is there a survival benefit?. Breast 2017, 32, 162-172.
  • Bell R, Ao BT, Ironside N, Bartlett A, Windsor JA, Pandanaboyana S. Meta-analysis and cost effective analysis of portal-superior mesenteric vein resection during pancreatoduodenectomy: Impact on margin status and survival. Surgical Oncology 2017, 26(1), 53-62.
  • Barreto SG, Pandanaboyana S, Ironside N, Windsor JA. Does revision of resection margins based on frozen section improve overall survival following pancreatoduodenectomy for pancreatic ductal adenocarcinoma? A meta-analysis. HPB 2017, 19(7), 573-579.
  • Navadgi S, Chang C-C, Bartlett A, McCall J, Pandanaboyana S. Systematic review and meta-analysis of outcomes after liver resection in patients with hepatocellular carcinoma (HCC) with and without bile duct thrombus. HPB 2016, 18(4), 312-316.
  • Teo K, Johnson MH, Truter S, Pandanaboyana S, Windsor JA. Pain assessment in chronic pancreatitis: A comparative review of methods. Pancreatology 2016, 16(6), 931-939.
  • Pandanaboyana S, Bell R, Windsor J. Artery first approach to pancreatoduodenectomy: Current status. ANZ Journal of Surgery 2016, 86(3), 127-132.
  • Stevens L, Pathak S, Nunes QM, Pandanaboyana S, Macutkiewicz C, Smart N, Smith AM. Prognostic significance of pre-operative C-reactive protein and the neutrophil-lymphocyte ratio in resectable pancreatic cancer: A systematic review. HPB 2015, 17(4), 285-291.
  • Bell R, Pandanaboyana S, Shah N, Bartlett A, Windsor JA, Smith AM. Meta-analysis of antecolic versus retrocolic gastric reconstruction after a pylorus-preserving pancreatoduodenectomy. HPB 2015, 17(3), 202-208.
  • Bell R, Pandanaboyana S, Prasad KR. Epidural versus local anaesthetic infiltration via wound catheters in open liver resection: A meta-analysis. ANZ Journal of Surgery 2015, 85(1-2), 16-21.
  • Pandanaboyana S, Mittapalli D, Rao A, Prasad R, Ahmad N. Meta-analysis of self-gripping mesh (Progrip) versus sutured mesh in open inguinal hernia repair. Surgeon 2014, 12(2), 87-93.