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BACKGROUND No reported prospective, randomized study has evaluated the impact of an endoscopy nurse participating as a second observer during colonoscopy. OBJECTIVE To determine whether the participation of an endoscopy nurse enhanced the polyp detection rate (PDR) and adenoma detection rate (ADR) during screening colonoscopy. DESIGN Multicenter,(More)
BACKGROUND/AIMS Endoscopic resection has proven to be a safe and effective alternative to surgery for duodenal adenomas. However, few data are available on the adequacy of resection and long-term outcomes. This study evaluated the efficacy and longterm endoscopic findings in a cohort of Korean patients who underwent endoscopic mucosal resection (EMR) of(More)
BACKGROUND In patients with acute nonvariceal upper gastrointestinal bleeding, rebleeding after an initial treatment is observed in 10-20% and is associated with mortality. AIM To investigate whether the initial serum C-reactive protein level could predict the risk of rebleeding in patients with acute nonvariceal upper gastrointestinal bleeding. METHODS(More)
Capsule endoscopy (CE) has proven to be highly effective at detecting small bowel lesions, but studies regarding the diagnostic impact of CE on ileitis are rare. We evaluated the diagnostic value of small bowel CE for isolated ileitis observed during ileocolonoscopy. The CE results in 137 patients initially diagnosed with ileitis without colonic mucosal(More)
Colorectal cancer is the second most common cancer in males and the fourth most common in females in Korea. Since the most of colorectal cancer occur through the prolonged transformation of adenomas into carcinomas, early detection and removal of colorectal adenomas are one of the most effective methods to prevent colorectal cancer. Considering the(More)
BACKGROUND/AIMS Long-term use of proton pump inhibitor (PPI) induces hypergastrinemia, which results from the suppression of gastric acid secretion. Hypergastrinemia causes enterochromaffin-like (ECL) cell hyperplasia, which is a predisposing factor of carcinoid tumor of stomach. The aim of this study was to identify the effect of long-term gastric acid(More)
BACKGROUND Small bowel tumors are relatively rare, and their confirmative diagnosis before surgery is not easy. AIMS This study was performed to investigate the clinical characteristics of patients with small bowel tumors who received double-balloon enteroscopy (DBE). Secondary end points were to evaluate the usefulness and safety of DBE for the diagnosis(More)
BACKGROUND Although the incidence of perforation after endoscopic procedures of the colon is low, the rising number of diagnostic colonoscopies could pose relevant health problems. Optimizing treatment may reduce the probability of severe complications. This study aimed to determine perforation frequency and the management of perforations that occurred(More)
BACKGROUND/AIMS There are limited data regarding the clinical outcomes of self-expandable metal stents in the treatment of proximal colon obstruction. We compared the clinical outcomes of stent placement in patients with malignant proximal to distal colon obstructions. METHODS We reviewed medical records from 37 consecutive patients from three(More)