Gerhard Prager, born in 1967, is Head of the Obesity Outpatient Clinic at MedUni Vienna's Department of General Surgery. He graduated as a doctor of general medicine at the medical faculty of the University of Vienna in July 1992. In 2003 he was appointed Senior Doctor at MedUni Vienna's Department of Surgery, and since 2004 he has also served as Head of the Bariatric Surgery Working Group. From 2011 until 2015 Prager chaired the scientific advisory board of the IFSO (International Federation for the Surgery of Obesity and Metabolic Disorders). He is currently serving as President of the European Society for the Surgery of Obesity and Metabolic Disorders: IFSO European Chapter.
Selected publications from PubMed
Changes in bone metabolism and densitometry after metabolic/bariatric surgery: a comparison of pre- and postoperative results in a prospective long-term study.
Felsenreich DM, Vock N, Pedarnig L, Fiedler B, Nöbauer-Huhmann IM, Jedamzik J, Gensthaler L, Nixdorf L, Richwien P, Jörg R, Bichler C, Mairinger M, Langer FB, Prager G
Surg Obes Relat Dis. 2026 Jul 30 pii: S1550-7289(26)00812-9. doi: 10.1016/j.soard.2026.07.018.
International expert Delphi consensus on thromboprophylaxis in metabolic and bariatric surgery.
Kermansaravi M, Cohen RV, Shikora SA, Parmar C, De Luca M, Shabbir A, Prager G, Poggi L, Chiappetta S, Nimeri A
Sci Rep. 2026 Jul 2 doi: 10.1038/s41598-026-60926-8.
Global Variability in Children and Adolescent Metabolic Bariatric Surgery Guidelines: A Worldwide IFSO Survey.
Pujol-Rafols J, Felsenreich DM, Carmona-Maurici J, Prager G, Cohen RV, Zundel N, Parmar C, Alqahtani A, Copaescu C, Omelanczuk P, Himpens J, Olbers T, Pouwels S, Shikora SA, Di Lorenzo N, de Luca M, Weiner S, Mazzarella M, D'Arco S, Angrisani L, Uyanik O, Pardina E, Balibrea JM
Obes Surg. 2026 Jul;36(7):3456-3467 doi: 10.1007/s11695-026-08743-w.
Metabolic - Bariatric Surgery in Elderly Patients - Safety and Effectiveness in a Single-Center Cohort.
Pedarnig L, Jedamzik J, Nixdorf L, Richwien P, Mairinger M, Bichler C, Langer FB, Gensthaler L, Krebs M, Prager G, Felsenreich DM
Obes Surg. 2026 Jul;36(7):3621-3631 doi: 10.1007/s11695-026-08738-7.
A Case Series and Technical Note on Endoluminal Vacuum Therapy via Pull-Through Technique for Leakage after Metabolic Bariatric Surgery.
Gensthaler L, Stauffer M, Jedamzik J, Bichler C, Nixdorf L, Richwien P, Langer FB, Prager G, Felsenreich DM
Obes Surg. 2026 May;36(5):2172-2179 doi: 10.1007/s11695-026-08563-y.
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