Salvage treatment for local recurrence after endoscopic resection for superficial nonampullary duodenal epithelial tumors

Gastrointest Endosc. 2023 Oct 27:S0016-5107(23)03026-2. doi: 10.1016/j.gie.2023.10.049. Online ahead of print.

Abstract

Background and aims: Local recurrence is a significant concern in endoscopic resection of superficial nonampullary duodenal tumors (SNADTs). Our objective was to elucidate the clinical outcomes of salvage endoscopic treatment.

Methods: This retrospective study included consecutive patients who underwent endoscopic resection of SNADTs between January 2013 and December 2021. Four hundred thirty-three patients were observed, excluding those with familial adenomatous polyposis and those who did not undergo surveillance endoscopy. Local recurrence was defined as histologically proven adenoma or adenocarcinoma in contact with a prior endoscopic resection scar. The clinicopathological characteristics of patients with local recurrence and outcomes of salvage endoscopic treatment were evaluated.

Results: Local recurrence occurred in 33 (8%) of the 433 patients after endoscopic resection for SNADT. Multivariate analysis identified older age (≥63 years), larger lesion size (≥13 mm), and piecemeal resection as significant independent predictors of local recurrence. Among the 33 patients with 33 recurrent lesions, 10 lesions (30%) disappeared after forceps biopsy. Three patients (9%) remained untreated. Sixteen lesions (48%) disappeared after one session of salvage endoscopic treatment, and four lesions (12%) disappeared after two sessions of treatment. Among these 24 treatment sessions, underwater endoscopic mucosal resection was performed in 19 sessions. The median post-procedural hospitalization period was four days (interquartile range, 3-4.25 days). Delayed bleeding occurred in three sessions. No recurrences have been detected in the 30 salvaged patients. The median recurrence-free survival time was 24.5 months (interquartile range, 14-48.75 months).

Conclusions: Local recurrence after endoscopic resection of SNADT can be managed endoscopically.

Keywords: adenocarcinoma; duodenal neoplasm; endoscopic mucosal resection; residual neoplasm; salvage treatment.