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Felix Langer
Assoc.Prof.PD.Dr. Felix Langer, MBADeputy Head, Department of General Surgery

Department of General Surgery (Division of Visceral Surgery)
Position: Associate Professor

ORCID: 0000-0002-7252-2583
T +43 1 40400 56210

Further Information


Bariatric Surgery; Gastric Bypass; Obesity

Research interests

Metabolic and Bariatric Surgery


Selected publications

  1. Langer, F.B. et al., 2005. Sleeve Gastrectomy and Gastric Banding: Effects on Plasma Ghrelin Levels. Obesity Surgery, 15(7), pp.1024-1029. Available at:
  2. Langer, F.B. et al., 2009. Temporary Placement of Self-Expanding Oesophageal Stents as Bridging for Neo-Adjuvant Therapy. Annals of Surgical Oncology, 17(2), pp.470-475. Available at:
  3. Felsenreich, D.M. et al., 2016. Weight loss, weight regain, and conversions to Roux-en-Y gastric bypass: 10-year results of laparoscopic sleeve gastrectomy. Surgery for Obesity and Related Diseases, 12(9), pp.1655-1662. Available at:
  4. Kefurt, R. et al., 2015. Hypoglycemia after Roux-En-Y gastric bypass: detection rates of continuous glucose monitoring (CGM) versus mixed meal test. Surgery for Obesity and Related Diseases, 11(3), pp.564-569. Available at:
  5. Langer, F.B. et al., 2005. Management of Postoperative Esophageal Leaks With the Polyflex Self-Expanding Covered Plastic Stent. The Annals of Thoracic Surgery, 79(2), pp.398-403. Available at: