Periprocedural management of antithrombotics for gastrointestinal endoscopy is a common clinical issue, given the widespread use of these drugs for primary and secondary cardiovascular prevention. For diagnostic procedures, with or without biopsy, no adjustments in antithrombotics are usually needed. For operative procedures, balancing the risk of periprocedural hemorrhage with the continuation...

Duodenal variceal bleeding is an uncommon cause of gastrointestinal bleeding. Treatment strategies are reliant on case reports and case series with new developments in interventional treatment modalities including endoscopic therapy, radiological intervention, and surgery. Endoscopic treatment includes injection sclerotherapy using various agents, banding of varices and clipping of varices. Int...

Recent advances in diagnostic imaging have made it possible to detect early cancers in the gastrointestinal tract, while the development of novel antitumor agents has contributed to improved survival of patients with advanced cancers. In this review, the contents of the core symposia on 'Recent Advances in Diagnosis and Treatment for Malignancies of the Gastrointestinal Tract', held at the 6th ...

Streptococcus bovis is a Gram-positive bacterium causing serious human infections, including endocarditis and bacteremia, and is usually associated with underlying disease. The aims of the current study were to compare prevalence of the bacterium associated with malignant and nonmalignant gastrointestinal diseases and to determine the susceptibility of the isolated strains to different antimicr...

This issue of the Journal contains three articles about the adverse cardiovascular effects of agents that selectively inhibit one form of prostaglandin endoperoxide synthase, commonly known as cyclooxygenase-2 (COX-2). 1-3 This is part of a long bench-to-bedside story with an adverse outcome that was not widely anticipated at its start. Unfortunately, as the evidence began to suggest unexpected...

A micro total bioassay system that mimics physiological processes was developed as a means of evaluating orally administered drugs. A new feature accounting for gastrointestinal digestion was added to the previous system, which consists of microintestine, microliver, and target components. The artificial micro-gastrointestinal tract employs synthetic digestive juices. The system could correc...

Based on the high volume of bacteria and viruses that the intestine is exposed to and the importance of infectious agents in some gastrointestinal and anogenital cancers, it is not surprising the many studies have evaluated the association between colorectal cancer and infectious agents. This review highlights investigations of four agents in relation to colorectal cancer. Helicobacter pylori, ...

gastrointestinal stromal tumors (gists) are uncommon tumors of the gastrointestinal (gi) tract that occur predominantly in adults. these tumors originated from cajal cells have positive mutations for kit (cd117) or platelet-derived growth factor receptor (pdgfra). gist especially multiple gists are very rare in children and lacking mutations in kit. we present a previously healthy 13 year- old ...

introduction: heterotopic gastrointestinal cyst of the oral cavity is an extremely rare lesion with fewer than 40 cases reported in the english literature. it usually involves the soft tissue covering the floor of the mouth and the tongue. lining of this lesion resembles gastric or intestinal mucosa. case report: in this report we describe the lesion in two boys and discuss their pathogenesis.

More elderly patients now undergo gastrointestinal endoscopy following recent advances in endoscopic techniques. In this study, we conducted a high-risk survey of endoscopies in Japan, using a questionnaire administered prior to upper gastrointestinal tract endoscopy (UGITE), and identified anticholinergic agents and glucagon preparations as high-risk premedication. We also evaluated the cardio...