Identification of significant difficulty of selective deep cannulation by a simple predictive model: an endoscopic scale for teaching ERCP.

Background: Endoscopic retrograde cholangiopancreatography (ERCP) is an advanced endoscopic procedure associated with a risk of serious complications. This cohort study was designed to assess the accuracy of an endoscopic method aimed at discriminating procedures eligible to teach ERCP: patients with and without significant difficulty of selective deep cannulation (DSDC).

Methods: Clinically relevant variables were analyzed in a cohort of 400 consecutive patients (estimation group = 250 patients; validation group = 150 patients) who underwent an ERCP procedure.

Endoscopic removal of large sessile colorectal adenomas: is it safe and effective?

Large sessile colorectal polyps represent a treatment challenge. Nowadays there are discrepancies regarding how to proceed with them because of morbidity, the possibility of incomplete endoscopic resection, and the high possibility of a coexisting malignancy. This study was performed to determine the safety and effectiveness of endoscopic removal of sessile colorectal adenomas larger than 4 cm.

Impact of periampullary duodenal diverticula at endoscopic retrograde cholangiopancreatography: a proposed classification of periampullary duodenal diverticula.

Background/aims: To propose a classification schema to describe periampullary duodenal diverticula (PDD) found at endoscopic retrograde cholangiopancreatography (ERCP), and to study the characteristics of these diverticula.

Materials And Methods: Among 400 consecutive patients in whom an ERCP was performed, PDD were present in 131 (32.8%), being these patients significantly older than the remaining, served as controls.