Prof. Güralp Onur Ceyhan is a board-certified general surgeon with specialized expertise in pancreatic and hepatobiliary surgery. He completed advanced surgical training at the Department of General Surgery, Klinikum rechts der Isar, Technical University of Munich (Prof. Dr.), in 2016. Since 2020 he has been affiliated with Acibadem Health Group, where he combines clinical practice, research, and teaching. His work focuses on complex pancreatic diseases, minimally invasive and open surgery for pancreatic and biliary pathology, and multidisciplinary care for digestive system cancers. He is active in surgical research and regularly contributes to professional education and international conferences. Professional memberships: – International Association of Pancreatology (IAP) – American Pancreatic Association (APA) – International Hepato-Pancreato-Biliary Association (IHPBA) – European Pancreatic-Club (EPC) – European Digestive Surgery (EDS) – Deutscher Pankreas-Club (DPC) – Deutsche Gesellschaft für Allgemein- und Viszeralchirurgie (DGAV) – Deutsche Gesellschaft für Chirurgie (DGCH) – Vereinigung der Bayerischen Chirurgen (VBC) – Turkish Surgical Association (TCD) Fluent in multidisciplinary collaboration, he is committed to advancing surgical care and improving outcomes for patients with pancreatic and hepatobiliary disorders.
Education
- 2016 Department of General Surgery, Prof. Dr.,Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- 2010 Germany Technical University of Munich Rechst Der Isar Clinic General Surgery
- 2002 Westfälische Wilhelms University School of Medicine
Experience
- 2020 Acibadem Health Group
- 2019 Head of Liver-Biliary Tract and Pancreas Unit, Acibadem Health Group
- 2019 Director of Pancreatic Cancer Research Center, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Turkey
- 2015 – 2018 Director of the Pancreas Research Center, Department of General Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- 2014 – 2018 Second Ordinary Professor, Department of General Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- 2014 – 2018 Head of the Liver-Biliary Tract and Pancreas Unit, Department of General Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- 2007 – 2018 Head of the Pancreas Research Center / Pancreatic neuropathy and pain unit Department of General Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- 2013 Liver-Biliary Tract and Pancreas Unit, Memorial Sloan-Kettering Cancer Center, New York, USA
- 2007 – 2008 Department of General Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- 2002 – 2007 European Pancreas Research Center / Center for Pancreatic Molecular Biology and Surgery, Department of General Surgery, University of Heidelberg, Heidelberg, Germany
- 2002 – 2007 Department of General Surgery, Heidelberg University, Heidelberg, Germany
- 1999 – 2002 Pancreatic Disease Research Center -Gastroenterology Unit, Westfälische Wilhelms University Münster, Münster, Germany
Memberships
- International Association of Pancreatology/ IAP
- Deutsche Gesellschaft für Allgemein- und Viszeralchirurgie/ DGAV
- Turkish Surgical Association/ TCD
- Vereinigung der Bayerischen Chirurgen/ VBC
- American Pancreatic Association/ APA
- European Pancreatic-Club/ EPC
- International Hepato-Pancreato-Biliary Association/ IHPBA
- Deutscher Pankreas-Club/ DPC
- European Digestive Surgery/ EDS
- Deutsche Gesellschaft für Chirurgie/ DGCH
Publications
- R0 Versus R1 Resection Matters after Pancreaticoduodenectomy, and Less after Distal or Total Pancreatectomy for Pancreatic Cancer
Friess H, Ceyhan GO. Ann Surg 2018; 268(6): 1058-1068 Demir IE, Jäger C, Schlitter AM, Konukiewitz B, Stecher L, Schorn S, Tieftrunk E, Scheufele F, Calavrezos L, Schirren R, Esposito I, Weichert W, - Pancreatic stump closure techniques and pancreatic fistula formation after distal pancreatectomy: meta-analysis and single-center experience.
PlosOne 2018; 13(6): e0197553 Tieftrunk E, Demir IE, Schorn S, Sargut M, Scheufele F, Calavrezos L, Schirren RM, Friess H, Ceyhan GO. - Effect of preoperative biliary drainage on bacterial flora in bile of patients with periampullary cancer
Br J Surg 2017; 104(2): e182-e188 Scheufele F, Aichinger L, Jager C, Demir IE, Schorn S, Sargut M, Erkan M, Kleeff J, Friess H, Ceyhan GO. - Activated Schwann cells in pancreatic cancer are linked to analgesia via suppression of spinal astroglia and microglia
Costello E, Algül, H, Friess H, Ceyhan GO. Gut 2016; 65(6): 1001-1014 Demir IE, Tieftrunk E, Schorn S, Saricioglu C, Pfitzinger P, Teller S, Wang K, Waldbair C, Kurkowski M, Wörmann S, Shaw V, Kehl T, Laschinger M; - Investigation of Schwann cells at neoplastic cell sites before the onset of cancer invasion
J Natl Cancer Inst. 2014; 106(8) Demir IE, Boldis A, Pfitzinger PL, Teller S, Brunner E, Klose N, Kehl T, Maak M, Lesina M, Laschinger M, Janssen KP, Algül H, Friess H, Ceyhan GO - The severity of neural invasion is associated with shortened survival in colon cancer.
Clin Cancer Res 2013;19(1): 50-61 Liebl, F, Demir IE, Rosenberg R, Boldis A, Yildiz E, Kujundzic K, Kehl T, Dischl D, Schuster T, Maak M, Becker K, Langer R, Laschinger M, Friess H, - The severity of neural invasion is a crucial prognostic factor in rectal cancer independent of neoadjuvant radiochemotherapy
Ann Surg 2010; 252(5):797-804; ESA-Manuscript 2010 Ceyhan GO, Liebl F, Maak M, Schuster T, Becker K, Langer R, Demir IE, Hartel M, Friess H, Rosenberg R. - Nerve growth factor and Artemin are paracrine mediators of pancreatic neuropathy in pancreatic adenocarcinoma
Ann Surg 2010; 251(5): 923-31 Ceyhan GO, Schäfer K-H, Kerscher A, Rauch U, Demir IE, Kadihasanoglu M, Böhm C, Müller MW, Büchler MW, Giese NA, Erkan M, Friess H. - Pancreatic neuropathy and neuropathic pain – a comprehensive pathomorphological study in 546 cases
Gastroenterology 2009; 136(1): 177-186.e1 Ceyhan GO, Bergmann F, Kadihasanoglu M, Altintas B, Demir IE, Hinz U, Müller MW, Giese T, Büchler MW, Giese NA, Friess H. - The neurotrophic factor artemin influences the extent of neural damage and growth in chronic pancreatitis
Gut 2007; 56(4): 534-44 Ceyhan GO, Bergmann F, Kadihasanoglu M, Erkan M, Park W, Hinz U, Müller MW, Giese T, Büchler MW, Giese NA, Friess H. - Phd Thesis: ”Administration of magnesium reduces the severity of cerulein induced acute pancreatitis and premature activation of proteases in isolated acini cells.
Westfälische Wilhelms University, WWU-Münster, Münster, Germany
