Omar Orellana

Clinical, Endoscopic, and Histologic Findings at the Distal Esophagus and Stomach Before and Late (10.5 Years) After Laparoscopic Sleeve Gastrectomy: Results of a Prospective Study with 93% Follow-Up

Attila Csendes, Omar Orellana, Gustavo A. Martı́nez et al. · Obesity Surgery · 2019 · 74 citations

Esophagus, Gastroenterology, Stomach Before +7

Long-term (15-year) objective evaluation of 150 patients after laparoscopic Nissen fundoplication

Attila Csendes, Omar Orellana, Nicole Cuneo et al. · Surgery · 2019 · 37 citations · Full text

Laparoscopy, Urology, Laparoscopic Nissen Fundoplication +5

Long-term (17 years) subjective and objective evaluation of the durability of laparoscopic Heller esophagomyotomy in patients with achalasia of the esophagus (90% of follow-up): a real challenge to POEM

Attila Csendes, Omar Orellana, Manuel Figueroa et al. · Surgical Endoscopy · 2021 · 24 citations

Laparoscopy, Esophagus, Objective Evaluation +7