Won-Choong Choi

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BACKGROUND The early identification of severe acute pancreatitis is important for the management and for improving outcomes. The bedside index for severity in acute pancreatitis (BISAP) has been considered as an accurate method for risk stratification in patients with acute pancreatitis. This study aimed to evaluate the comparative usefulness of the BISAP.(More)
BACKGROUND Distinguishing those patients with fulminant hepatic failure (FHF) and who require transplantation from those FHF patients who will survive with receiving only intensive medical care remains problematic, and this distinction is important because of the chronic shortage of donor livers. METHODS To assess the applicability of two prognostic(More)
OBJECTIVES Pancreatitis is the most common complication of endoscopic retrograde cholangiopancreatography (ERCP). The aim of this prospective trial was to compare the effect of ulinastatin and nafamostat on the prophylaxis of post-ERCP complications. METHODS A total of 159 patients who underwent ERCP were divided into ulinastatin (n = 53), nafamostat (n =(More)
Despite the limitations of screening or early diagnosis of colorectal cancers (CRC), carcinoembryonic antigen (CEA) is frequently measured in practice and during health promotion programs. The aim of this study was to evaluate the role of colonoscopy in healthy individuals with elevated CEA levels. From January 2003 to November 2008, 117,731 healthy persons(More)
BACKGROUND Liver stiffness measurement (LSM) by transient elastography is a non-invasive method to assess liver fibrosis. Decline in LSM value has been reported after antiviral treatment (AVT) using nucleos(t)ide analogues (NUCs) in chronic hepatitis B (CHB) patients, however, factors associated with changes in LSM during AVT remains unclear. METHODS A(More)
AIM To analyze whether prompt and appropriate empirical antibiotic (AEA) use is associated with mortality in cirrhotic patients with bacteremia. METHODS A total of 102 episodes of bacteremia in 72 patients with cirrhosis were analyzed. AEA was defined as a using or starting an antibiotic appropriate to the isolated pathogen at the time of bacteremia. The(More)
Here, we report a case of corrosive injury-induced pharyngeal stricture in a 69-year-old female, which was successfully treated with endoscopic adhesiolysis using an electrosurgical knife. The patient had ingested sodium hydroxide in an attempted suicide, and immediate endoscopy revealed corrosive injuries of the pharynx, esophagus, and stomach. When a(More)
BACKGROUND In previous studies, most hepatitis A virus (HAV) isolates had been genotype IA in Korea. Recently, a small number of different genotypes were reported with an upsurge of acute hepatitis by HAV. We investigated the distribution of HAV genotypes. METHODS RNA was extracted from anti-HAV IgM positive sera which were collected from March 2007 to(More)
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