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The Duke Division of Metabolic and Weight Loss Surgery is actively involved in research that is designed to improve patient care and outcomes. Recent and current projects are focused on the following topics:

  • Early intervention in patients with predicted poor long-term outcome following laparoscopic Roux-en-Y gastric bypass surgery
  • Creation of gastric pouches with duet staple line reinforcement
  • Treatment of trocar site hernias following laparoscopic Roux-en-Y gastric bypass surgery

We also have many clinical research projects focusing on outcomes and techniques for minimally invasive bariatric and general surgery.

Duke Surgery Research

Participating Faculty

  • Daniel Guerron, MD
  • Kunoor Jain-Spangler, MD
  • Dana D. Portenier, MD
  • Keri A. Seymour, DO
  • Ranjan Sudan, MD
  • Jin S. Yoo, MD

Research Fellows


Gerardo Davalos, MD





Ramón Diaz Jara, MD






Camila Ortega, MD (2017)