The role of endoscopic submucosal dissection in the treatment of large superficial duodenal epithelial neoplasia

Background and Aims: Endoscopic submucosal dissection is one of the recommended treatment modality in terms of facilitating en-bloc resection in patients with superficial duodenal epithelial neoplasm larger than 2 cm. There is limited information in the literature about the applicability of endoscopic submucosal dissection in superficial duodenal epithelial neoplasm. In this single-center study, the results of eight patients with superficial duodenal epithelial neoplasm who underwent endoscopic submucosal dissection were retrospectively analyzed. Materials and Methods: Twelve patients who underwent duodenal endoscopic submucosal dissection between February 2019 and November 2023 were screened. Eight patients with superficial duodenal epithelial neoplasm larger than 2 cm were included in the study. Results: The median tumor diameter was 27.5 mm (20 - 80 mm). The most common localization was the duodenum second part (87.5%). En bloc and R0 resection rates were each 100%. The median procedure time was 37.5 min. Two patients (20%) with complications were treated with endoscopic clips. No recurrence was observed in all patients (mean 21 months). Conclusion: Endoscopic submucosal dissection is a technically challenging but successful method in the treatment of superficial duodenal epithelial neoplasm. Due to the high risk of complications, duodenal endoscopic submucosal dissection should be performed in experienced centers.