Relevant risk factors and the prognostic impact of positive resection margins after endoscopic resection of gastrointestinal neuroendocrine tumors.

Introduction: Endoscopic resection for the treatment of gastrointestinal neuroendocrine tumors has a risk of resection margin residues. The related risk factors and prognosis of post-endoscopic resection margin residues have not been fully evaluated.

Aim: To investigate the associated risk factors and prognostic impact of resection margin residues after endoscopic resection of gastrointestinal neuroendocrine tumors.

Study on detection rate of polyps and adenomas in artificial-intelligence-aided colonoscopy.

Background/aim: To study the impact of computer-aided detection (CADe) system on the detection rate of polyps and adenomas in colonoscopy.

Materials And Methods: A total of 1026 patients were prospectively randomly scheduled for colonoscopy with (the CADe group, CADe) or without (the control group, CON) the aid of the CADe system, together with visual notification and voice alarm, so as to compare the detection rate of polyp.

Results: Compared with group CON, the detection rate of adenomas increased in group CADe, the average number of adenomas increased, the number of small adenomas increased, the number of proliferative polyps increased, and the differences were statistically significant (P < 0.

Mallory-Weiss tear as a rare complication during esophageal endoscopic submucosal dissection.

There are no previous reports of Mallory-Weiss tears occurring as complications during esophageal endoscopic submucosal dissection (ESD). We present 3 cases of Mallory-Weiss tears occurring during treatment of superficial squamous cell neoplasms through ESD. Carbon dioxide was used for air insufflation, and the patient was adequately sedated without retching or struggling during the operation.