Seungbong Han

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Reducing food residue by proper preparation methods before endoscopy after distal gastrectomy can increase the quality of examination and decrease patient discomfort. We evaluated the risk factors for food residue and proper methods of preparation for endoscopy after distal gastrectomy. Follow-up endoscopy with questionnaires was performed on 1,001 patients(More)
Although Parkinson's disease is a neurodegenerative disease primarily involving basal ganglia and midbrain, the deficit of white matter is also involved during the disease progression. As the diffusion tensor imaging method is sensitive to the microstructural changes, we investigated the microstructural alterations in white matter and deep gray matter in(More)
PURPOSE To investigate features of the anterior segment (AS) of the affected eye compared to the fellow eye within the same patient in acute primary angle closure (APAC). METHODS Thirty-six patients with unilateral APAC were imaged with AS optical coherence tomography (OCT) before medical or laser treatment for the acute attack. Anterior chamber depth(More)
BACKGROUND Because of the variable course of idiopathic pulmonary fibrosis (IPF), it is important to generate an accurate prognosis at the time of diagnosis. The aim of this study was to investigate the prognostic value of blood biomarkers in IPF. METHODS The plasma level of the biomarkers, matrix metalloproteinase-7 (MMP-7), Krebs von den Lungen-6(More)
Riparian buffers have the potential to improve stream water quality in agricultural landscapes. This potential may vary in response to landscape characteristics such as soils, topography, land use, and human activities, including legacies of historical land management. We built a predictive model to estimate the sediment and phosphorus load reduction that(More)
BACKGROUND & AIMS Little is known about whether the antiviral agent entecavir is more effective than a less potent drug, lamivudine, in reducing the risk of death and hepatocellular carcinoma (HCC) in patients with chronic hepatitis B. METHODS We performed a retrospective analysis of data from 5374 consecutive adult patients with chronic hepatitis B,(More)
BACKGROUND Only 30% to 40% of patients with advanced proximal neoplasms (APN) have distal colon neoplasms. OBJECTIVE To develop a risk score model for APN and propose an individualized screening protocol for colorectal cancer. DESIGN Retrospective cohort study. SETTING Tertiary-care center. PATIENTS Derivation cohort (6200 adults) and validation(More)
PURPOSE To investigate the relationship between unstable mean ocular perfusion pressure (MOPP) and the rate of paracentral visual field (PVF) progression in patients with medically treated normal-tension glaucoma (NTG). METHODS The data of 157 eyes of 122 patients with NTG who were followed for more than 6 years (mean follow-up, 8.7 years ± 12.6 months)(More)
There are insufficient reports on the outcomes and local recurrence rates for gastric neoplasms treated using argon plasma coagulation (APC). The purpose of this study was to analyze the clinical outcomes in early gastric cancer or gastric adenoma patients following APC treatment. Seventy-one patients were enrolled and all underwent APC at the Asan Medical(More)
OBJECTIVE To evaluate factors associated with aortic enlargement in patients with a bicuspid aortic valve (BAV) and the impact of isolated aortic valve replacement (AVR). DESIGN AND SETTING A retrospective analysis of clinical data in a tertiary referral hospital. PATIENTS AND MAIN OUTCOME MEASURES We performed a cross-sectional analysis of 595 patients(More)