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홍성필(Sung Pil Hong),정윤원(Yun Won Chung) 한국통신학회 2021 한국통신학회 학술대회논문집 Vol.2021 No.2
국내 초고층 건축물 및 노후 시설물의 증가로 구조물의 안전과 유지관리에 관한 관심이 커지고 있다. 구조물의 안전진단을 위해서는 구조물에서 측정한 실제 데이터를 사용할 필요가 있다. 본 논문에서는 손상의 추정과 정도만 확인할 수 있는 기존연구와 달리 동적 특성변화를 실시간 감지하고 장기진동 데이터를 통해 과거 이력을 확인할 수 있는 장기진동 데이터 분석기법을 제안하고 이를 이용하여 구조물의 안전성을 진단하였다.
신성재 ( Sung Jae Shin ),이석호 ( Suck Ho Lee ),박동일 ( Dong Il Park ),홍성노 ( Sung Noh Hong ),김성은 ( Seong Eun Kim ),양동훈 ( Dong Hoon Yang ),홍성필 ( Sung Pil Hong ),이보인 ( Bo In Lee ),김현수 ( Hyun Soo Kim ),김영호 ( You 대한장연구학회 2011 Intestinal Research Vol.9 No.3
Background/Aims: There are no evidence-based, procedural guidelines to appropriately perform a colon polypectomy. Thus, we investigated the treatment modality for colon polypectomy in Korea, using a web-based e-mail survey. Methods: A questionnaire of preferred treatment modality for colon polypectomy was sent via e-mail to members of the Korean Association for the Study of Intestinal Diseases and primary care physicians who performed colonoscopies as a screening or surveillance program nationwide. Among 425 colonoscopists who were sent the e-mail, 263 replied. We analysed data from 252 colonoscopists who had performed colon polypectomies. Results: The stopping time for antiplatelet and anticoagulation therapy before a colon polypectomy had a tendency to increase and the restarting time for these drugs was delayed as polyp size increased. Colonoscopists preferred cold biopsy removal for polyps <5 mm in size and a hot snare polypectomy after injecting normal saline and epinephrine mixture for polyps ≥5 mm in size. More than half of colonoscopists preferred observation rather than additional procedures for adenomas with incomplete resection. In contrast, most colonoscopists recommended additional procedures, such as endoscopic mucosal resection, endoscopic submucosal dissection or surgery for an advanced adenoma with incomplete resection. The most preferred prophylactic treatment for immediate postpolypectomy bleeding was hemoclipping. Conclusions: Various treatment modalities were used for a colon polypectomy because there are few guidelines for performing a colon polypectomy based on a critical review of the available data. Further well-designed, prospective studies are needed to develop evidence-based guidelines for colon polypectomy. (Intest Res 2011;9:196-205)
홍성노 ( Sung Noh Hong ),양동훈 ( Dong Hoon Yang ),김영호 ( Young Ho Kim ),김성은 ( Seong Eun Kim ),신성재 ( Sung Jae Shin ),홍성필 ( Sung Pil Hong ),이보인 ( Bo In Lee ),이석호 ( Suck Ho Lee ),박동일 ( Dong Il Park ),김현수 ( Hyu 대한장연구학회 2011 Intestinal Research Vol.9 No.2
Background/Aims: There is a paucity of information on postpolypectomy surveillance currently practiced in Korea. Thus, we investigated the present state of postpolypectomy surveillance in Korea using a web-based survey. Methods:A multiple choice questionnaire was used to determine the preferred surveillance modality, the colonoscopic surveillance interval used in 11 case scenarios, and clinical factors influencing surveillance intervals. The form was sent via e-mail to members of the Korean Association for the Study of Intestinal Diseases and primary care physicians involved in a colonoscopy surveillance program. Of 425 colonoscopists contacted, 263 replied (response rate, 62%). Of the respondents, 94% were internists and 54% practiced in tertiary referral hospitals. Results: All respondents chose colonoscopy as a preferred surveillance modality following polyp removal. Colonoscopy at 3 years was the most frequent answer after removal of 1 or 2 tubular adenoma(s) <1 cm in size, while 1 year was the most frequent answer after removal of an advanced adenoma or ≥3 adenomas, and 6 months was the most frequent choice after removal of adenoma with high-grade dysplasia or a sessile polyp ≥2 cm. The agreement rate for the time of first surveillance between preferred guideline recommendations and respondent answers was in the low range at 14-43%. Conclusions: A significant disagreement exists between current postpolypectomy surveillance practices of Korean colonoscopists and preferred guideline recommendations. This discrepancy may be due to the fact that the guidelines do not reflect recent studies and the specific medical environment in Korea. Thus, there is a need to develop new evidence-based Korean guidelines for postpolypectomy surveillance. (Intest Res 2011;9:118-128)
홍성노 ( Sung Noh Hong ),양동훈 ( Dong Hoon Yang ),김영호 ( Young Ho Kim ),홍성필 ( Sung Pil Hong ),신성재 ( Sung Jae Shin ),김성은 ( Seong Eun Kim ),이보인 ( Bo In Lee ),이석호 ( Suck Ho Lee ),박동일 ( Dong Ii Park ),김현수 ( Hyu 대한소화기학회 2012 대한소화기학회지 Vol.59 No.2
1. 기준대장내시경검사에서 샘종이 3개 이상 발견된 환자는 추적대장내시경검사에서 진행신생물이 발견될 위험이 증가한다. 2. 기준대장내시경검사에서 10 mm 이상 크기의 샘종이 발견된 환자는 추적대장내시경검사에서 진행신생물이 발견될 위험이 증가한다. 3. 기준대장내시경검사에서 관융모 또는 융모샘종이 발견된 환자는 관샘종이 발견된 환자에 비해 추적대장내시경검사에서 진행신생물이 발견될 위험이 증가한다. 4. 기준대장내시경검사에서 제거한 샘종이 고도이형성을 동반한 경우, 저도이형성을 동반한 경우에 비해 추적대장내시 경검사에서 진행신생물이 발견될 위험이 증가한다. 5. 기준대장내시경검사에서 10 mm 이상의 톱니모양폴립이 발견된 환자는 추적대장내시경검사에서 진행신생물의 발생위험이 증가한다. 6. 추적검사에서 진행신생물 발생의 고위험군은 기준대장 내시경검사에서 샘종의 개수가 3개 이상, 가장 큰 샘종의 크기가 10 mm 이상, 관융모 또는 융모샘종, 고도이형성을 동반한 샘종, 또는 크기 10 mm 이상의 톱니모양폴립 중 한 가지 이상의 소견이 진단된 경우이다. 7. 일정한 자격을 갖춘 대장내시경의사가 양호한 대장정결 상태에서 양질의 기준대장내시경검사를 시행하였음을 전제로, 기준대장내시경검사 소견이 폴립절제 후 진행신생물의 발생 고위험군에 해당되지 않는 경우 추적대장내시경검사를 폴립절제 후 5년에 시행할 것을 권고한다. 그러나, 상기의 전제 조건이 만족되지 않거나 기준대장내시경검사 이전의 대장내 시경검사에서 고위험군에 해당하는 소견을 보였던 경우에는 기준대장내시경 소견이 고위험군에 해당되지 않더라도 추적 검사 기간을 단축할 것을 권고한다. 8. 일정한 자격을 갖춘 대장내시경의사가 양호한 대장정결 상태에서 양질의 기준대장내시경검사를 시행하였음을 전제로, 기준대장내시경검사 소견이 폴립절제 후 진행신생물의 발 생 고위험군에 해당하는 경우는 추적대장내시경검사를 폴립 절제 후 3년에 시행할 것을 권고한다. 그러나, 상기의 전제조건이 만족되지 않거나 기준대장내시경검사 소견, 샘종의 절제상태, 환자의 전신 상태, 가족력 및 과거력 등을 고려하여 추적검사 기간을 단축할 수 있다. Post-polypectomy surveillance has become a major indication for colonoscopy as a result of increased use of screening colonoscopy in Korea. However, because the medical resource is limited, and the first screening colonoscopy produces the greatest effect on reducing the incidence and mortality of colorectal cancer, there is a need to increase the efficiency of postpolypectomy surveillance. In the present report, a careful analytic approach was used to address all available evidences to delineate the predictors for advanced neoplasia at surveillance colonoscopy. Based on the results of review of the evidences, we elucidated the high risk findings of the index colonoscopy as follows: 1) 3 or more adenomas, 2) any adenoma larger than 10 mm, 3) any tubulovillous or villous adenoma, 4) any adenoma with high-grade dysplasia, and 5) any serrated polyps larger than 10 mm. In patients without any high-risk findings at the index colonoscopy, surveillance colonoscopy should be performed five years after index colonoscopy. In patients with one or more high risk findings, surveillance colonoscopy should be performed three years after polypectomy. However, the surveillance interval can be shortened considering the quality of the index colonoscopy, the completeness of polyp removal, the patient`s general condition, and family and medical history. This practical guideline cannot totally take the place of clinical judgments made by practitioners and should be revised and supplemented in the future as new evidence becomes available.
안상훈(Sang Hoon Ahn),한광협(Kwang Hyub Han),윤영훈(Young Hoon Youn),홍성필(Sung Pil Hong),백용한(Yong Han Paik),전재윤(Chae Yoon Chon),문영명(Young Myoung Moon),송기준(Ki Jun Song),김동기(Dong Kee Kim),서일(Il Suh) 대한내과학회 2001 대한내과학회지 Vol.60 No.2
Background : Hepatocellular carcinoma (HCC) is one of the most common neoplasms in the world. Although screening test for HCC has been performed, the high risk factors were not well evaluated in Korea. This study was undertaken to evaluate the risk factors of HCC development in Korea. Methods : We studied a total of 2,020 patients who visited Yonsei University Medical Center for regular check-up including ultrasonography (US) and alpha-fetoprotein (AFP) from January 1990 to December 1998. All the detailed data of clinical parameters were obtained by our self-exploited data base system prospectively and analyzed by SAS program. Results : Among 2,020 subjects, 1295 were male and 725 were female (mean age, M: 47 years, F: 50 years). 117 (5.8%) out of 2,020 subjects developed HCC during follow-up period (33months). Annual detection rate of HCC was 1.64%. The independent risk factors by univariate analysis were liver cirrhosis, chronic hepatitis, hepatitis B virus (HBV) or hepatitis C virus (HCV) infection, old age (over 40 years old), heavy alcoholics, severe liver parencymal echogenic pattern in US, initial level of serum AFP (>20 ng/mL) or alanine aminotransferase (ALT) (>40 IU/L). Multivariate analysis with a proportional hazards model showed liver cirrhosis (p=0.000), chronic hepatitis (p=0.014), HCV infection (p=0.007), HBV infection (p=0.049), and old age over 40 years old (p=0.000) to be significant risk factors for HCC. We also found that the more risk factors, the higher HCC development. The development of HCC might not be related to history of smoking, family history of HCC, previous therapy such as interferon (IFN), diet, drugs, and transfusion. Conclusion : Screening test for early detection of HCC should be reconsidered according to the relative risk rate of these risk factors.(Korean J Med 60:123-130, 2001)
크론병으로 인한 십이지장-대장 누공의 Endoloop과 Hemoclip을 이용한 수술 전 내시경적 결찰 증례보고
박미성 ( Mi Sung Park1 ),김원진 ( Won Jin Kim ),허지혜 ( Ji Hye Huh ),박수정 ( Soo Jung Park ),홍성필 ( Sung Pil Hong ),김태일 ( Tae Il Kim ),김원호 ( Won Ho Kim ),천재희 ( Jae Hee Cheon ) 대한소화기학회 2013 대한소화기학회지 Vol.61 No.2
Duodeno-colonic fistula is an enterocolonic fistula that occurs as a complication of Crohn`s disease. Symptoms of duodeno colonic fistula are similar to those of Crohn`s disease, such as weight loss and diarrhea. The treatment of choice is surgery, although medical treatment may also be considered. However, surgery is recommended when all available medical therapies have been ineffective. In this case, we report a secondary duodeno-colonic fistula due to Crohn`s disease that was temporarily managed by an endoscopic procedure with a detached endoloop and hemoclips as a bridging therapy to final surgical repair.