Endoscopic ultrasound elastography for malignant pancreatic masses and associated lymph nodes: Critical evaluation of strain ratio cutoff value.

Background: Endoscopic ultrasound (EUS) can detect small lesions throughout the digestive tract; however, it remains challenging to accurately identify malignancies with this approach. EUS elastography measures tissue hardness, by which malignant and nonmalignant pancreatic masses (PMs) and lymph nodes (LNs) can be differentiated. However, there is currently little information regarding the strain ratio (SR) cutoff in Hispanic populations.

Digital per-oral cholangioscopy to diagnose and manage biliary duct disorders: a single-center retrospective study.

Digital, per-oral cholangioscopy (POCS) allows diagnosis of biliary ducts disorders and treatment for complicated stones. We aimed to determine the diagnostic accuracy of digital POCS systems for stricture lesions and the factors precluding complete biliary stone clearance. We performed a retrospective analysis of a prospective database of 265 consecutive patients referred for POCS between December 2016 and July 2018.

Confocal laser endomicroscopy detects colonic inflammation in patients with irritable bowel syndrome: a prospective study.

 Irritable bowel syndrome (IBS) is considered to be a functional disease, but recent data indicate measurable organic alterations. We aimed to determine the presence of colorectal mucosa microinflammation in vivo via probe-confocal laser endomicroscopy (pCLE) and histological evaluation in IBS patients.  This was a prospective, controlled, nonrandomized single-blind diagnostic trial performed in a tertiary institution.

High-definition optical magnification with digital chromoendoscopy detects gastric mucosal changes in dyspeptic-patients.

Background: Accurate detection of gastric infection by () and premalignant lesions are important for effective provision of treatment, preventing the development of gastric neoplasia. Optical enhancement systems with optical magnification improved the identification of mucosal superficial and vascular patterns in patients with dyspepsia.

Aim: To evaluate an optical enhancement system with high-definition magnification, for diagnosis of normal gastric mucosa, -associated gastritis, and gastric atrophy.

Detection of minimal mucosal esophageal lesions in non-erosive gastroesophageal reflux disease using optical enhancement plus optical magnification.

The aim of this study was to evaluate the diagnostic yield of endoscopy using optical enhancement (OE system) with optical magnification to predict reflux in non-erosive reflux disease (NERD) patients. A prospective, non-randomized, single-blind study was performed from September 2015 to January 2016. Participants suffered from gastroesophageal reflux disease (GERD) symptoms and were assigned to the NERD group or the non-reflux disease control group based on endoscopic findings and a 24-hour pH-impedance-monitoring test.

[Intrahepatic fasciolosis that simulated a cholangiocarcinoma. Report an infrequentcase].

Fasciolosis is a parasitic infection caused by 2 types of fasciola, being the most common of hepatic type, the infective form is the metacercariae. Its prevalence lies in low socio-economic zones and livestock areas. The objective is to present a case of atypical presentation in which the patient was avoided to undergo an unnecessary surgical treatment.

Safety, Feasibility, and Efficacy of Pancolonic Retroflexed Viewing Using a Short-turn Radius Colonoscope.

Goals: The goal of this study was to evaluate the safety and feasibility of routine segmental retroflexed withdrawal viewing (RV) of the colon with the RetroView colonoscope.

Materials And Methods: This was a prospective, single-center, 2-stage diagnostic trial. After cecal intubation, mucosal evaluation by forward viewing (FV) and RV was performed by segment (right, transverse, left, and sigmoid colon, and rectum).

[Giant Rapunzel syndrome with atypical complication. Report of a case].

Rapunzel syndrome is an unusual and rare form of gastric trichobezoar that extends into the small intestine. The formation is due to the continuous ingestion of hair which leads to the impaction of the hair along with mucus and food, but it is rare that gastric perforation occurs. We report the case of a female patient of 16 years of age admitted to our institution with a history of depression and clinical symptoms characterized by nausea, severe epigastralgia and pathological loss of weight.

[Ovesco clip as a rescue treatment of duodenal Dieulafoy lesion with active bleeding].

Dieulafoy's lesions are vascular anomalies that produce gastrointestinal bleeding of the mucosa from an abnormally long and tortuous submucosal artery. It is found predominately in the stomach (80%) and less frequently in the duodenum. They constitute the 6% of all non-variceal bleeding and the 1 to 2% of all gastrointestinal bleeding source.

Capsule Endoscopy in Refractory Diarrhea-Predominant Irritable Bowel Syndrome and Functional Abdominal Pain.

Background/aims: Capsule endoscopy is a diagnostic method for evaluating the small bowel lumen and can detect undiagnosed lesions. The aim of this study was to evaluate the diagnostic yield and clinical impact of capsule endoscopy in patients with refractory diarrhea-predominant irritable bowel syndrome and functional abdominal pain.

Methods: This study involved a retrospective analysis of prospectively collected data, maintained in a database.

Reliability and accuracy of a novel classification system using peroral cholangioscopy for the diagnosis of bile duct lesions.

Background: The aim of this study was to propose a novel, comprehensive, macroscopic classification for bile duct lesions.

Methods: A two-stage protocol was designed. In Stage I, a retrospective study (September 2013 to September 2015) of patients with bile duct lesions detected by peroral cholangioscopy (POCS) was performed.