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한국인 건강 검진자의 나이와 체질량지수에 따른 위식도역류질환의 유병률
강효성,남승우,이성은,권혁춘,박상민,양성욱,윤주화,유지원,이근숙,나수지 대한노인병학회 2008 Annals of geriatric medicine and research Vol.12 No.4
Background: The prevalence of obesity is increasing year after year in K orean; and gastroesophageal reflux disease (GERD) is increasing in this population as well. The aim of this study is to assess the association between age, body m ass index (B M I) and G E R D in healthy K orean adults. M ethods: A nalysis w as done on 1,016 subjects w ho had not had m alignancy, uncontrolled m etabolic disease, enteric surgery and organic esophageal disease. They completed a questionnaire that included past history and reflux sym ptom s. Endoscopy was perform ed by two gastroenterologists who were not given any patient inform ation. Existence of G E R D w as determ ined by the esophageal syndrom e criteria of the M ontreal guidelines. S ubjects w ere categorized by B M I, initially as: underw eight, norm al (18.5≤B M I<25), overw eight (25≤B M I<30) and obese by the W HO criteria, and then as: underweight, norm al (18.5≤BM I<23), overweight (23≤BM I<25) and obese by the Asian- P acific criteria. Results: The overall [is this correct] prevalence of GERD in our subjects was 15.5% . Age and sex were not correlated factors for G E R D . B y the W H O and the A sian-P acific criteria , G E R D w as present in underw eight (10.0% , 12.1%), normal (13.9%, 14.4%), overweight (18.6%, 13.0%) and obese groups (21.0%, 18.8%). No meaningful association was seen between BM I and G ERD in either of the classified groups. Erosive GERD was seen in 83 subjects (8.2% ) on endoscopy. The obese (B M I≥25) group (12.1% ) show ed a m eaningful increm ent in the prevalence of erosive G E R D com pared to the non-obese (B M I<25) group (6.2% ) (p value 0.002). C onclusion: The prevalence of G E R D in healthy K orean adult subjects w as not closely associated w ith obesity and age [according to B M I]; how ever, erosive G E R D w as found to have a strong association w ith obesity.
강효성,현종진,김승영,정성우,구자설,임형준,이상우 대한의학회 2014 Journal of Korean medical science Vol.29 No.6
Duodenal diverticula are detected in up to 27% of patients undergoing uppergastrointestinal tract evaluation with periampullary diverticula (PAD) being the mostcommon type. Although PAD usually do not cause symptoms, it can serve as a source ofobstructive jaundice even when choledocholithiasis or tumor is not present. This duodenaldiverticulum obstructive jaundice syndrome is called Lemmel’s syndrome. An 81-yr-oldwoman came to the emergency room with obstructive jaundice and cholangitis. Abdominal CT scan revealed stony opacity on distal CBD with CBD dilatation. ERCP wasperformed to remove the stone. However, the stone was not located in the CBD but ratherinside the PAD. After removal of the enterolith within the PAD, all her symptoms resolved. Recognition of this condition is important since misdiagnosis could lead tomismanagement and therapeutic delay. Lemmel’s syndrome should always be included asone of the differential diagnosis of obstructive jaundice when PAD are present.
무선랜 위치 추적을 활용한 버스 교통의 지능형 교통 정보 시스템 구조
강효성(Hyo-Sung Kang),김재훈(Jai-Hoon Kim) 한국정보과학회 2004 한국정보과학회 학술발표논문집 Vol.31 No.1B
지능형 교통 정보 시스템을 구축할 때 반드시 요구되는 것이 바로 위치 정보이다. 대부분 GPS (Global Positioning System)와 같은 장치를 이용하여 위치 정보를 얻게 된다. 그러나 GPS 수신기와 같은 장치는 상대적으로 비용이 크기 때문에 차량마다 장착하여 지능형 교통 정보 시스템에 활용하기에는 부담이 된다. 따라서 본 논문에서는 기존의 무선랜으로 위치를 추적하는 방법을 버스 지능형 교통 정보 시스템에 적용한 시스템 구조를 제안한다. 버스는 노선의 자유도가 택시 같은 다른 교통편에 비해서 작으므로 무선랜으로 위치 추적하는 방법은 다른 위치 추적 방법에 비해 경제적으로 보다 적합하다.