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Specialist fields (in extracts)

  • Clinical surgical focus: Oncological surgery, Hepato-pancreato-biliary surgery, Surgery of the upper gastrointestinal tract, Treatment of peritoneal carcinomatosis, Robotic, computer-assisted and minimally invasive surgery, Transplant Surgery
  • Scientific focus: research of innovative techniques, such as augmented reality, and their application in complex operations in the abdominal cavity

Curriculum vitae (in extracts)

Academic Background

12/2007 PhD with the title: "Characteristics and ablation volume of different radiofrequency systems under the influence of perfusion - development of an in vitro model", University of Cologne ("magna cum laude")

Habilitation in the subject "Surgery" with the title "Living kidney donation - approaches to optimize the procedure", University of Cologne


Awarded the title of "Associate Professor" at the University of Cologne

Clinical Training/Professional Career


Residency training for surgery, Bundeswehr Zentralkrankenhaus Koblenz, Department of Trauma Surgery and Burn Medicine

07/2005 Appointment as staff physician
02/2007-08/2007 Rotation to the Department of Anesthesiology and Emergency Medicine, Bundeswehr Central Hospital, Koblenz
08/2007-02/2008 Troop doctor at the Bruchsal medical center
13.02.2008 Additional title emergency medicine
02/2008 Retirement from the Bundeswehr medical service (Rank: Oberstabsarzt (senior medical officer))
02/2008 Appointment as Academic Councillor at the University of Cologne

Continuation of residency training in surgery, Clinic and Polyclinic for General, Visceral and Tumor Surgery, University of Cologne

08.11.2008 FMCH basic surgery exam according to the Swiss criteria
01/2010 Investigator according to GCP for AMG/MPG studies
16.03.2011 Specialist for surgery
03/2011 Participant of the Walter Brendel College of Transplant Medicine
05/2011 Appointment as functional senior physician of the clinic

Advanced training in visceral surgery including transplant surgery, Clinic and Polyclinic for General, Visceral and Tumor Surgery at the University of Cologne

02/2013 Appointment as full senior physician of the clinic
11/2011 & 05/2012 European School of Transplantation Paris
09/2013 Certification as explantation surgeon according to § 16 TPG

European Board of Surgery Qualifications (EBSQ) “Transplantation Surgery”, Fellow of the European Board of Surgery (FEBS)

01/2014 Deputy head with focus transplant surgery

Specialist for visceral surgery, Advanced training in special visceral surgery, Focus on hepato-pancreatico-biliary surgery, Clinic and Polyclinic for General, Visceral and Tumor Surgery, University of Cologne 

10/2014 Certification in ultrasound diagnostics according to DEGUM level 1
01/2015 Clinical and research stay "Transplantation Surgery" at the Karolinska Institute Stockholm, Sweden

Clinical Hospitation "Cytoreductive Surgery and HIPEC, Hospital of the Merciful Brothers, Regensburg

04/2016 Start of the peritoneal carcinomatosis program, Cologne University Hospital
14.07.2016 Additional designation special visceral surgery
06/2016 Establishment of the research group on "3D visualization in minimally invasive surgery"

Head "Cytoreductive Surgery", Clinic for General, Visceral and Tumor Surgery, University of Cologne


Head of the Liver Cancer Center, Clinic for General, Visceral and Tumor Surgery, University of Cologne

Introduction of 3D-navigated liver surgery

1st Certification DKG Liver Cancer Center, University Hospital Cologne


Da Vinci - Robot Console Surgeon, Launch of robotic-assisted minimally invasive liver surgery program

10/2019 European Board of Surgery Qualifications (EBSQ) "Surgical Oncology" with distinction as best in the year, FEBS
01/2020 Recertification Ultrasound Diagnostics DEGUM Level 1

Establishment of the translational research group "Circulating tumor DNA in primary liver tumors."

05/2020 Managing senior physician of the clinic

Additional title "Transplant Medicine

since 14.08.2023 Chief Physician, Department for General, Visceral and Oncological Surgery, Helios Hospital Berlin-Buch


  • He has authored and co-authored over 60 peer reviewed articles and textbooks.
  • He worked as principal investigator in clinical studies and lead a multinational registry.
  • Clinical Studies - Head of Clinical Trial/ Principal Investigator:
  •  Since 4/2022 Laparoscopic Augmented Reality (L.A.R.A.) - Empirical model study on an artificial liver phantom to evaluate the utility of a virtually displayed 3D anatomy model in intraoperative identification of liver metastases (LKP, Sponsor UK Köln VCH).
  • Since 2021 Flot9/Prevent AIO-STO-0319/ass: Preventive HIPEC in combination with perioperative FLOT versus FLOT alone for resectable diffuse type gastric and gastroesophageal junction Typ II/III adenocarcinoma - A phase III trial of the AIO/CAOGI/ACO (FLOT-9)
  • Since 2018 ESSURE – European SIR Spheres Surgical Registry – Liver resection after SIRT induced hypertrophy (IIT, Studienzentrale Köln, Sponsor Uniklinik Köln, LKP, VCH)
  • Since 2018 GAIN - Neoadjuvant chemotherapy with gemcitabine plus cisplatin followed by radical liver resection versus radical liver resection alone in incidentally detected gallbladder carcinoma after simple cholecystectomy or in front of radical resection of BTC (ICC/ECC) – A phase III study utilizing the German Registry of Incidental Gallbladder Carcinoma Platform (GR), EudraCT number: 2017-004444-38
  • 2018-2021 3 D- vs. 4 K- display system – Influence of “state-of-the-art”- display technique on surgical Performance (IDOSP)
  • 7/2017-2/2020 Prospective multicenter phase III trial of cytoreductive surgery with hyperthermic intraperitoneal chemoperfusion (HIPEC) after preoperative chemotherapy for gastric cancer including AEG with primary peritoneal metastasis - Gastripec I (local PI).
  • Further studies: FLOT5/Renaissance, SOLKID, QuoLID, S&L, Harmony

Extra information

  • Building up structures for academic institutions, teaching of students and improving education are part of his work.
  • In cooperation with a global medical company, he has designed and developed novel digital surgical tools.
  • He is performing research in the growing field of innovative software applications in surgery, medical imaging and oncology, using artificial intelligence, 3-dimensional visualisation and augmented reality techniques.

New chief physician at Helios Hospital Berlin-Buch: Prof. Dr. med. Roger Wahba


  • Expert Pool of the Innovation Committee of the Federal Joint Committee
  • Working Group Liver-Biliary-Pancreas of the DGAV
  • Association of Surgical Oncology (ACO) of the DGAV (Advisory Board)
  • German Society for Surgery (DGCH)
  • German Society for General and Visceral Surgery (DGAV)
  • European Computer Assisted Liver Surgery and Intervention Society (ECALSS)
  • European Society for Surgical Oncology (ESSO)
  • German Transplant Society (DTG)
  • European Society for Organ Transplantation (ESOT)
  • German Society for Ultrasound in Medicine (DEGUM)
  • Professional Association of German Surgeons (BDC)
  • Association of Senior Hospital Physicians e.V.
  • Association of Lower Rhine-Westphalian Surgeons

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