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Staff Profile
Publications
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Articles
- King D, Kamran U, Dosanjh A, Coupland B, Mytton J, Leeds JS, Nayar M, Patel P, Oppong KW, Trudgill NJ. Rate of pancreatic cancer following a negative endoscopic ultrasound and associated factors. Endoscopy 2022, 54(11), 1053-1061.
- Nayar M, Leeds JS, Oppong K. Lumen-apposing metal stents for drainage of pancreatic fluid collections: does timing of removal matter?. Gut 2022, 71(5), 850-853.
- 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.
- On W, Paranandi B, Smith AM, Venkatachalapathy SV, James MW, Aithal GP, Varbobitis I, Cheriyan D, McDonald C, Leeds JS, Nayar MK, Oppong KW, Geraghty J, Devlin J, Ahmed W, Scott R, Wong T, Huggett MT. EUS-guided choledochoduodenostomy with electrocautery-enhanced lumen-apposing metal stents in patients with malignant distal biliary obstruction: multicenter collaboration from the United Kingdom and Ireland. Gastrointestinal Endoscopy 2022, 95(3), 432-442.
- 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.
- 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.
- Haugk B, Horton D, Oppong K, Leeds J, Darne A, Sloan P, Ness T, Jones C, Bassett P, Nayar M. Morphological and p40 immunohistochemical analysis of squamous differentiation in endoscopic ultrasound guided fine needle biopsies of pancreatic ductal adenocarcinoma. Scientific Reports 2021, 11(1), 21290.
- 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.
- 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.
- Stassen PMC, Goodchild G, de Jonge PJF, Erler NS, Anderloni A, Cennamo V, Church NI, Fernandez-Urien Sainz I, Huggett MT, James MW, Joshi D, Kylanpaa L, Laleman W, Nayar MK, Oppong KW, Poley J-W, Potts JR, Repici A, Udd M, Vila JJ, Wong T, Bruno MJ, Webster GJM. Diagnostic accuracy and interobserver agreement of digital single-operator cholangioscopy for indeterminate biliary strictures. Gastrointestinal Endoscopy 2021, 94(6), 1059-1068.
- Oppong KW, Bekkali NLH, Leeds JS, Johnson SJ, Nayar MK, Darne A, Egan M, Bassett P, Haugk B. Fork-tip needle biopsy versus fine-needle aspiration in endoscopic ultrasound-guided sampling of solid pancreatic masses: a randomized crossover study. Endoscopy 2020, 52(6), 454-461.
- Bekkali NLH, Nayar MK, Leeds JS, Thornton L, Johnson SJ, Haugk B, Darne A, Howard-Tripp N, Charnley RM, Bassett P, Oppong KW. Impact of metal and plastic stents on endoscopic ultrasound-guided aspiration cytology and core histology of head of pancreas masses. Endoscopy 2019, 51(11), 1044-1050.
- Tsang KFP, Oppong WK, Leeds SJ, Bekkali LHN, Nayar KM. Does IgG4 level at the time of diagnosis correlate with disease outcome in IgG4-Related disease?. Pancreatology 2019, 19(1), 177-181.
- Dominguez-Munoz JE, Drewes AM, Lindkvist B, Ewald N, Czako L, Rosendahl J, Lohr JM, Lohr M, Dominguez-Munoz JE, Besselink M, Mayerle J, Rosendahl J, Lerch MM, Akisik F, Kartalis N, Manfredi R, Iglesias-Garcia J, Haas SL, Keller J, Boermeester MA, Werner J, Dumonceau J-M, Fockens P, Mayerle J, Drewes A, Cheyan GO, Lindkvist B, Drenth JP, Ewald N, Hardt P, de Madaria E, Gheorghe C, Lindgren F, Schneider A, Witt H, Bollen T, Boraschi P, Frokjaer JB, Rudolf S, Bruno M, Dimcevski G, Giovannini M, Pukitis A, Petrone M, Oppong K, Ammori B, Friess H, Izbiki JR, Ganeh P, Salvia R, Sauvanet A, Barbu S, Lyadov V, Deprez P, Gubergrits N, Okhlobystiy AV, Arvanitakis M, Costamagna G, Pap A, Andersson R, Hauge T, McKay C, Pukitis A, Regner S, Dite P, Olesen SS, Duggan S, Hopper A, Phillips M, Shvets O, Vujasinovic M, Czako L, Piemonti L, Kocher H, Rebours V, Stimac D, Hegyi P. Recommendations from the United European Gastroenterology evidence-based guidelines for the diagnosis and therapy of chronic pancreatitis. Pancreatology 2018, 18(8), 847-854.
- Valori R, Cortas G, De Lange T, Balfaqih OS, De Pater M, Eisendrath P, Falt P, Koruk I, Ono A, Rustemovic N, Schoon E, Veitch A, Senore C, Bellisario C, Minozzi S, Bennett C, Bretthauer M, Dinis-Ribeiro M, Domagk D, Hassan C, Kaminski MF, Rees CJ, Spada C, Bisschops R, Rutter M. Performance measures for endoscopy services: A European Society of Gastrointestinal Endoscopy (ESGE) Quality Improvement Initiative. Endoscopy 2018, 50(12), 1186-1204.
- Valori R, Cortas G, de Lange T, Salem Balfaqih O, de Pater M, Eisendrath P, Falt P, Koruk I, Ono A, Rustemovic N, Schoon E, Veitch A, Senore C, Bellisario C, Minozzi S, Bennett C, Bretthauer M, Dinis-Ribeiro M, Domagk D, Hassan C, Kaminski MF, Rees CJ, Spada C, Bisschops R, Rutter M. Performance measures for endoscopy services: A European Society of Gastrointestinal Endoscopy (ESGE) quality improvement initiative. United European Gastroenterology Journal 2018, 7(1), 21-44.
- O'Reilly D, Fou L, Hasler E, Hawkins J, O'Connell S, Pelone F, Callaway M, Campbell F, Capel M, Charnley R, Corrie P, Elliot D, Goodburn L, Jewell A, Joharchi S, McGeeney L, Mukherjee S, Oppong K, Whelan P, Primrose J, Neoptolemos J. Diagnosis and management of pancreatic cancer in adults: A summary of guidelines from the UK National Institute for Health and Care Excellence. Pancreatology 2018, 18(8), 962-970.
- Kaminski MF, Thomas-Gibson S, Bugajski M, Bretthauer M, Rees CJ, Dekker E, Hoff G, Jover R, Suchanek S, Ferlitsch M, Anderson J, Roesch T, Hultcranz R, Racz I, Kuipers EJ, Garborg K, East JE, Rupinski M, Seip B, Bennett C, Senore C, Minozzi S, Bisschops R, Domagk D, Valori R, Spada C, Hassan C, Dinis-Ribeiro M, Rutter MD. Performance measures for lower gastrointestinal endoscopy: a European Society of Gastrointestinal Endoscopy (ESGE) Quality Improvement Initiative. Endoscopy 2017, 49(4), 378-397.
- Leeds JS, Nayar MK, Charnley RM, Oppong KW. Lumen-apposing metal stents for pancreatic fluid collection drainage: May not be business as usual?. Gut 2017, 66(8), 1530.
- Nayar MK, Paranandi B, Dawwas MF, Leeds JS, Darne A, Haugk B, Majumdar D, Ahmed MM, Oppong KW. Comparison of the diagnostic performance of 2 core biopsy needles for EUS-guided tissue acquisition from solid pancreatic lesions. Gastrointestinal Endoscopy 2017, 85(5), 1017–1024.
- Jais B, Rebours V, Malleo G, Salvia R, Fontana M, Maggino L, Bassi C, Manfredi R, Moran R, Lennon AM, Zaheer A, Wolfgang C, Hruban R, Marchegiani G, Del Castillo CF, Brugge W, Ha Y, Kim MH, Oh D, Hirai I, Kimura W, Jang JY, Kim SW, Jung W, Kang H, Song SY, Kang CM, Lee WJ, Crippa S, Falconi M, Gomatos I, Neoptolemos J, Milanetto AC, Sperti C, Ricci C, Casadei R, Bissolati M, Balzano G, Frigerio I, Girelli R, Delhaye M, Bernier B, Wang H, Jang KT, Song DH, Huggett MT, Oppong KW, Pererva L, Kopchak KV, Del Chiaro M, Segersvard R, Lee LS, Conwell D, Osvaldt A, Campos V, Garcete GA, Napoleon B, Matsumoto I, Shinzeki M, Bolado F, Fernandez JMU, Keane MG, Pereira SP, Acuna IA, Vaquero EC, Angiolini MR, Zerbi A, Tang J, Leong RW, Faccinetto A, Morana G, Petrone MC, Arcidiacono PG, Moon JH, Choi HJ, Gill RS, Pavey D, Ouaissi M, Sastre B, Spandre M, De Angelis CG, Rios-Vives MA, Concepcion-Martin M, Ikeura T, Okazaki K, Frulloni L, Messina O, Levy P. Serous cystic neoplasm of the pancreas: a multinational study of 2622 patients under the auspices of the International Association of Pancreatology and European Pancreatic Club (European Study Group on Cystic Tumors of the Pancreas). Gut 2016, 65(2), 305-312.
- Dronamraju S, Scott J, Oppong K, Nayar MK. Diagnostic yield of secretin-enhanced magnetic resonance cholangiopancreatography in the investigation of patients with acalculous biliary pain. Annals of Gastroenterology 2016, 29(3), 367-372.
- Oppong KW, Dawwas MF, Charnley RM, Wadehra V, Elamin K, White S, Nayar M. EUS and EUS-FNA diagnosis of suspected pancreatic cystic neoplasms: Is the sum of the parts greater than the CEA?. Pancreatology 2015, 15(5), 531-537.
- Huggett MT, Oppong KW, Pereira SP, Keane MG, Mitra V, Charnley RM, Nayar MK. Endoscopic drainage of walled-off pancreatic necrosis using a novel self-expanding metal stent. Endoscopy 2015, 47(10), 929-932.
- Mitra V, Nayar MK, Leeds JS, Wadehra V, Haugk B, Scott J, Charnley RM, Oppong KW. Diagnostic Performance of Endoscopic Ultrasound (EUS)/Endoscopic Ultrasound - Fine Needle Aspiration (EUS-FNA) Cytology in Solid and Cystic Pancreatic Neuroendocrine Tumours. Journal of Gastrointestinal and Liver Diseases 2015, 24(1), 69-75.
- Kalaitzakis E, Sturgess R, Kaltsidis H, Oppong K, Lekharaju V, Bergenzaun P, Vlavianos P, Sharma H, Westaby D, Webster GJ. Diagnostic utility of single-user peroral cholangioscopy in sclerosing cholangitis. Scandinavian Journal of Gastroenterology 2014, 49(10), 1237-1244.
- K. Oppong, C. O. Record and H. AlMardini. Effect of incubation with ammonia on GABA and glutamate uptake into rat synaptosomes. Hepatology 1997, 26, 1041-1041.
- K. Oppong, C. O. Record and H. AlMardini. Effect of alanine, phenylalanine, and GABA incubation on glutamate uptake into rat synaptosomes. Hepatology 1997, 26, 1042-1042.
- OPPONG KNW, BARTLETT K, RECORD CO, ALMARDINI H. SYNAPTOSOMAL GLUTAMATE TRANSPORT IN THIOACETAMIDE-INDUCED HEPATIC-ENCEPHALOPATHY IN THE RAT. HEPATOLOGY 1995, 22(2), 553-558.
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Book Chapter
- Dawwas MF, Oppong KW. Management of Acute Pancreatic Pseudocyst When to Observe, When and How to Drain?. In: Domínguez-Muñoz JE, ed. Clinical Pancreatology for Practising Gastroenterologists and Surgeons, Second Edition. Chichester: John Wiley & Sons Ltd, 2021.
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Letters
- Masi AC, Oppong YEA, Haugk B, Lamb CA, Sharp L, Shaw JM, Stewart CJ, Oppong KW. Endoscopic ultrasound (EUS) guided fine needle biopsy (FNB) formalin preserved paraffin embedded (FFPE) pancreatic tissue samples are a potential resource for microbiota analysis. Gut 2021, 70(5), 999-1001.
- Rees CJ, Trebble TM, Von Wagner C, Clapham Z, Hewitson P, Barr H, Everett S, Griffiths H, Nayar M, Oppong K, Riley S, Stebbing J, Thomas-Gibson S, Bevan R. British Society of Gastroenterology position statement on patient experience of GI endoscopy. Gut 2020, 69(9), 1718-1719.
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Notes
- Rees CJ, Koo S, Oppong KW. Future directions in therapeutic gastrointestinal endoscopy. The Lancet Gastroenterology and Hepatology 2018, 3(10), 663-664.
- Rees CJ, Koo S, Oppong KW. Future directions in diagnostic gastrointestinal endoscopy. The Lancet Gastroenterology and Hepatology 2018, 3(9), 595-597.
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Reviews
- Rees CJ, Koo S, Anderson J, McAlindon M, Veitch AM, Morris AJ, Bhandari P, East JE, Webster G, Oppong KW, Penman ID. British society of gastroenterology Endoscopy Quality Improvement Programme (EQIP): Overview and progress. Frontline Gastroenterology 2019, 10(2), 148-153.
- Domagk D, Oppong KW, Aabakken L, Czako L, Gyokeres T, Manes G, Meier P, Poley J-W, Ponchon T, Tringali A, Bellisario C, Minozzi S, Senore C, Bennett C, Bretthauer M, Hassan C, Kaminski MF, Dinis-Ribeiro M, Rees CJ, Spada C, Valori R, Bisschops R, Rutter MD. Performance measures for ERCP and endoscopic ultrasound: A European Society of Gastrointestinal Endoscopy (ESGE) Quality Improvement Initiative. Endoscopy 2018, 50(11), 1116-1127.
- Domagk D, Oppong KW, Aabakken L, Czako L, Gyokeres T, Manes G, Meier P, Poley J-W, Ponchon T, Tringali A, Bellisario C, Minozzi S, Senore C, Bennett C, Bretthauer M, Hassan C, Kaminski MF, Dinis-Ribeiro M, Rees CJ, Spada C, Valori R, Bisschops R, Rutter MD. Performance measures for endoscopic retrograde cholangiopancreatography and endoscopic ultrasound: A European Society of Gastrointestinal Endoscopy (ESGE) Quality Improvement Initiative. United European Gastroenterology Journal 2018, 6(10), 1448-1460.
- Dawwas MF, Oppong KW, Webster GJ. Endoscopic assessment and management of biliary strictures. Frontline Gastroenterology 2016, 7(3), 170-175.
- Robinson SM, Scott J, Oppong KW, White SA. What to do for the incidental pancreatic cystic lesion?. Surgical Oncology 2014, 23(3), 117-125.