Otto Schiueh-Tzang Lin

Learn More
BACKGROUND Published data on the risk of colorectal neoplasia in patients with ulcerative colitis with and without primary sclerosing cholangitis are conflicting. A meta-analysis was performed to synthesize available publications and to compare the risk of colorectal neoplasia in patients with ulcerative colitis with and without primary sclerosing(More)
OBJECTIVES:The aim of this study was to compare findings on screening colonoscopy in a Chinese cohort versus a concurrent Western cohort.METHODS:Asymptomatic adults aged 40 years or older concurrently underwent screening colonoscopy in two hospitals, one in Taiwan and the other in Seattle. The prevalence and distribution of colonic neoplasia and advanced(More)
BACKGROUND & AIMS We developed a risk index to identify low-risk patients who may be screened for colorectal cancer with computerized tomographic colonography (CTC) instead of colonoscopy. METHODS Asymptomatic persons aged 50 years or older who had undergone screening colonoscopy were randomized retrospectively to derivation (n = 1512) and validation (n =(More)
Computed tomographic colonography (CTC) is a promising emerging technology for imaging of the colon. This concise review discusses the currently available data on CTC technique, test characteristics, acceptance, safety, cost-effectiveness, follow-up strategy, and extracolonic findings. In summary, CTC technique is still evolving, and further research is(More)
CONTEXT Current guidelines do not include an upper age cutoff for colorectal cancer screening with colonoscopy. Although the prevalence of colonic neoplasia increases with age, life expectancy decreases. Thus, the benefit of screening colonoscopy in very elderly patients may be limited. OBJECTIVE To compare estimated life-years saved with screening(More)
BACKGROUND & AIMS Walled-off pancreatic necrosis (WOPN), a complication of severe acute pancreatitis (SAP), can become infected, obstruct adjacent structures, and result in clinical deterioration of patients. Patients with WOPN have prolonged hospitalizations, needing multiple radiologic and medical interventions. We compared an established treatment of(More)
Emphysematous gastritis (or phlegmonous gastritis) and gastric emphysema (or gastric pneumatosis) are variations of conditions associated with the presence of intramural air in the stomach. The presence of air in the gastric wall is a very rare clinical condition, associated with bacterial infection, increased intragastric pressure from gastric outlet(More)
OBJECTIVE:Endoscopic variceal ligation is becoming the therapy of choice for esophageal varices, replacing endoscopic variceal sclerotherapy. The latter is associated with a 5–53% incidence of port-procedural bacteremia and a 0.5–3% incidence of peritonitis, whereas the former carries a 3–6% risk of bacteremia. However, the incidence of peritonitis after(More)
BACKGROUND Capsule impaction is a well-recognized complication of capsule endoscopy, with an incidence rate of 0.75% to 21%, depending on indication. There have been only 2 reported cases of capsule impaction causing symptomatic obstruction. OBJECTIVE We present 3 cases of capsule impaction causing acute symptomatic obstruction and/or perforation. (More)
BACKGROUND A redundant colon can lead to incomplete colonoscopy. A variety of tools and techniques are available to complete colonoscopy but have limitations. OBJECTIVE To determine the feasibility and safety of using a spiral overtube to complete a difficult colonoscopy. DESIGN Retrospective review of a prospectively collected database. SETTING(More)