Ricerc@Sapienza

Introduction: Gastric polypoid lesions (GPL) are endoscopic findings whose histological nature is difficult to determine with white-light endoscopy. Hyperplastic polyps (HP), type-1 gastric carcinoids (T1-GC) and adenomas are the most frequent GPL needing different management. Narrow-band imaging (NBI) has high accuracy for gastric malignant lesions but few studies assessed whether GPL display specific NBI characteristics. We aimed to investigate the endoscopic NBI appearances of GPL.

Background: Atrophic gastritis (AG) is at increased risk of gastric neoplasia, thus surveillance gastroscopy
has been proposed.
Aims: To assess cost of detecting gastric neoplasias by surveillance endoscopy according to identified risk
factors in Italy.
Methods: Post-hoc analysis of a cohort study including 200 AG-patients from Italy followed up for a mean
of 7.5 (4–23.4) years was done. Considered risk factors were: age >50 years, extensive atrophy, pernicious

We read with interest the paper by Hamada et al.1 (covered vs uncovered metal stents for malignant gastric outlet obstruction. Systematic review and metaanalysis”).
We prospectively analyzed the clinical outcomes of 72 patients2,3 and we came to similar conclusions. Conceptually, covered stents present the advantage of preventing tumor ingrowth within the stent and, being more compliant, they could facilitate pyloric motility. However, they dislodge
more easily, and distal migration of the stent can lead to serious consequences ...