Roles of Capsule Endoscopy and Single-Balloon Enteroscopy in Diagnosing Unexplained Gastrointestinal Bleeding.

Background/aims: The diagnostic algorithms used for selecting patients with obscure gastrointestinal bleeding (OGIB) for capsule endoscopy (CE) or balloon-assisted enteroscopy (BE) vary among facilities. We aimed to demonstrate the appropriate selection criteria of CE and single balloon-assisted enteroscopy (SBE) for patients with OGIB according to their conditions, by retrospectively comparing the diagnostic performances of CE and BE for detecting the source of the OGIB.

Methods: We investigated 194 patients who underwent CE and/or BE.

Safety and efficacy of endoscopic submucosal dissection of rectal tumors extending to the dentate line.

Background And Study Aims: Unique anatomical features render endoscopic resection for rectal tumors extending to the dentate line (RTDL) technically challenging. The aim of this study was to evaluate the feasibility of endoscopic submucosal dissection (ESD) for RTDLs.

Patients And Methods: This retrospective study compared ESD for RTDLs with proximal rectal tumors between September 2002 and June 2012.

Proximally migrated pancreatic stent successfully removed using needle-knife and forceps: complication after precut papillotomy assisted by pancreatic stenting.

Pancreatic stent-assisted ampullary precut papillotomy is a rescue method for cases with difficult bile duct cannulation during endoscopic retrograde cholangiopancreatography (ERCP). We describe a case in which post-ERCP pancreatitis (PEP) developed due to the proximal migration of pancreatic stent, after precut papillotomy. Removal of the migrated pancreatic stent was achieved after needle-knife incision of the pancreatic duct's orifice followed by retrieval of the stent using rat-tooth forceps, which resulted in rapid resolution of the PEP.