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| 교수진 명단



  • 변정식 교수

    Jeong-Sik Byeon

    내과학

    패스워드가 일치하지 않습니다.

    전공분야

    내과/소화기내과/대장 및 소장 질환

    소속연구단

    관련/관심분야

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    주요논문

    1. Efficacy and safety of oral sodium sulfate tablet compared with 1-L polyethylene glycol plus ascorbate: a prospective, randomized, endoscopist-blinded trial [ JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY ] - 2023.12.15
    2. Influence of endoscopists' expertise level on clinical outcomes after bridge-to-surgery stenting in obstructive colorectal cancer [ JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY ] - 2023.12.15
    3. Comparative Cost Analysis Between Endoscopic Resection and Surgery for Submucosal Colorectal Cancer [ DISEASES OF THE COLON & RECTUM ] - 2023.05.01
    4. Clinical outcomes of colonoscopic polypectomy with strategic surveillance colonoscopies in patients with 10 or more polyps [ SCIENTIFIC REPORTS ] - 2023.02.14
    5. Improved adenoma detection by a novel distal attachment device-assisted colonoscopy: a prospective randomized controlled trial [ GASTROINTESTINAL ENDOSCOPY ] - 2022.09.15
    6. The Influence of Face Shields on the Quality of Colonoscopy in the Era of the COVID-19 Pandemic [ GUT AND LIVER ] - 2022.05.15
    7. Chronic Viral Hepatitis Is Associated with Colorectal Neoplasia: A Systematic Review and Meta-Analysis [ DIGESTIVE DISEASES AND SCIENCES ] - 2021.11.01
    8. A Surveillance Endoscopy Strategy Based on Local Recurrence Rates after Colorectal Endoscopic Submucosal Dissection [ JOURNAL OF CLINICAL MEDICINE ] - 2021.10.05
    9. Usefulness of narrow-band imaging for the detection of remnant sessile-serrated adenoma (SSA) tissue after endoscopic resection: the KASID multicenter study [ SURGICAL ENDOSCOPY AND OTHER INTERVENTIONAL TECHNIQUES ] - 2021.09.01
    10. Comparison of long-term recurrence-free survival between primary surgery and endoscopic resection followed by secondary surgery in T1 colorectal cancer [ GASTROINTESTINAL ENDOSCOPY ] - 2021.08.01
    11. Colonoscopic Polypectomy Preferences of Asian Endoscopists: Results of a Survey-Based Study [ GUT AND LIVER ] - 2021.05.01
    12. Endoscopic features and clinical outcomes of cytomegalovirus gastroenterocolitis in immunocompetent patients [ SCIENTIFIC REPORTS ] - 2021.03.18
    13. Long-term clinical outcomes of endoscopic submucosal dissection for colorectal neoplasia with or without the hybrid technique [ COLORECTAL DISEASE ] - 2020.12.01
    14. Technical feasibility of a newly designed bendable forceps for difficult endoscopic tissue samplings (with video) [ SURGICAL ENDOSCOPY AND OTHER INTERVENTIONAL TECHNIQUES ] - 2020.10.01
    15. Association of low skeletal muscle mass with the presence of advanced colorectal neoplasm: integrative analysis using three skeletal muscle mass indices [ COLORECTAL DISEASE ] - 2020.10.01
    16. Association Between Carotid Ultrasonography Findings and Colorectal Adenoma in Asymptomatic Adults [ DIGESTIVE DISEASES AND SCIENCES ] - 2020.06.05
    17. Real-time detection of colon polyps during colonoscopy using deep learning: systematic validation with four independent datasets [ SCIENTIFIC REPORTS ] - 2020.05.20
    18. Cost of Endoscopic Submucosal Dissection Versus Endoscopic Piecemeal Mucosal Resection in the Colorectum [ DIGESTIVE DISEASES AND SCIENCES ] - 2020.04.15
    19. Clinical Practice Guideline for Endoscopic Resection of Early Gastrointestinal Cancer [ Clinical endoscopy ] - 2020.03.20
    20. Clinical outcomes of submucosal colorectal cancer diagnosed after endoscopic resection: a focus on the need for surgery [ Intestinal Research ] - 2020.01.15
    21. Endoscopic diagnosis and treatment planning for colorectal polyps using a deep-learning model [ SCIENTIFIC REPORTS ] - 2020.01.06
    22. Risk factors of traditional serrated adenoma and clinicopathologic characteristics of synchronous conventional adenoma [ GASTROINTESTINAL ENDOSCOPY ] - 2019.10.01
    23. Association Between Cigarette Smoking and Alcohol Consumption and Sessile Serrated Polyps in Subjects 30 to 49 Years Old [ CLINICAL GASTROENTEROLOGY AND HEPATOLOGY ] - 2019.07.01
    24. Colonic Intramucosal Cancer in the Interposed Colon Treated with Endoscopic Mucosal Resection: A Case Report and Review of Literature [ Clinical endoscopy ] - 2019.07.01
    25. A risk-scoring model for the prediction of delayed bleeding after colorectal endoscopic submucosal dissection [ GASTROINTESTINAL ENDOSCOPY ] - 2019.05.01
    26. Endoscopic Transplantation of Mesenchymal Stem Cell Sheets in Experimental Colitis in Rats [ SCIENTIFIC REPORTS ] - 2018.07.27
    27. Fecal Fatty Acid Profiling as a Potential New Screening Biomarker in Patients with Colorectal Cancer [ DIGESTIVE DISEASES AND SCIENCES ] - 2018.05.01
    28. Predictive factors for missed adenoma on repeat colonoscopy in patients with suboptimal bowel preparation on initial colonoscopy: A KASID multicenter study [ PLOS ONE ] - 2018.04.26
    29. 급성 위장관 출혈 환자에서 혈관조영술 및 색전술의 임상 성적: 출혈 부위 및 색전술 방식에 따른 분석 [ 대한소화기학회지 ] - 2018.04.01
    30. Endoscopic features and clinical outcomes of colorectal mucosa-associated lymphoid tissue lymphoma [ GASTROINTESTINAL ENDOSCOPY ] - 2018.02.01
    31. Endoscopic Resection of Cecal Polyps Involving the Appendiceal Orifice: A KASID Multicenter Study [ DIGESTIVE DISEASES AND SCIENCES ] - 2017.11.01
    32. Association between the ulcer status and the risk of delayed bleeding after the endoscopic mucosal resection of colon [ JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY ] - 2017.11.01
    33. Local recurrence and subsequent endoscopic treatment after endoscopic piecemeal mucosal resection with or without precutting in the colorectum [ Intestinal Research ] - 2017.10.01
    34. Fluoro-2-deoxy-d-glucose positron emission tomography/computed tomography for the detection of proximal synchronous lesions in patients with obstructive colorectal cancer. [ JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY ] - 2017.02.15
    35. Treatment outcomes and recurrence following standard cold forceps polypectomy for diminutive polyps. [ SURGICAL ENDOSCOPY AND OTHER INTERVENTIONAL TECHNIQUES ] - 2017.01.15
    36. Helicobacter pylori Infection with Atrophic Gastritis Is an Independent Risk Factor for Advanced Colonic Neoplasm. [ Gut and Liver ] - 2016.11.15
    37. Prediction of the Risk of a Metachronous Advanced Colorectal Neoplasm Using a Novel Scoring System [ DIGESTIVE DISEASES AND SCIENCES ] - 2016.10.01
    38. Does Stenting as a Bridge to Surgery in Left-Sided Colorectal Cancer Obstruction Really Worsen Oncological Outcomes? [ DISEASES OF THE COLON & RECTUM ] - 2016.08.01
    39. Metabolic factors affect the occurrence of colorectal neoplasm on surveillance colonoscopies. [ JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY ] - 2016.07.01
    40. Endoscopic and Clinical Factors Affecting the Prognosis of Colorectal Endoscopic Submucosal Dissection-Related Perforation. [ Gut and Liver ] - 2016.05.23
    41. Clinical outcomes of endoscopic submucosal dissection for large colorectal neoplasms: a comparison of protruding and laterally spreading tumors. [ SURGICAL ENDOSCOPY AND OTHER INTERVENTIONAL TECHNIQUES ] - 2016.04.01
    42. Optimized hybrid endoscopic submucosal dissection for colorectal tumors: a randomized controlled trial. [ GASTROINTESTINAL ENDOSCOPY ] - 2016.03.01
    43. The Feasibility of Performing Colorectal Endoscopic Submucosal Dissection Without Previous Experience in Performing Gastric Endoscopic Submucosal Dissection. [ DIGESTIVE DISEASES AND SCIENCES ] - 2015.11.01
    44. Long-Term Outcomes of Endoscopic Versus Surgical Resection of Superficial Submucosal Colorectal Cancer. [ DIGESTIVE DISEASES AND SCIENCES ] - 2015.09.01
    45. An adequate level of training for technically competent colonoscopic polypectomy. [ SCANDINAVIAN JOURNAL OF GASTROENTEROLOGY ] - 2015.07.01
    46. The clinical usefulness of endoscopic ultrasound-guided fine needle aspiration and biopsy for rectal and perirectal lesions. [ Intestinal Research ] - 2015.04.01
    47. Probability of high-risk colorectal neoplasm recurrence based on the results of two previous colonoscopies [ DIGESTIVE DISEASES AND SCIENCES ] - 2015.01.01
    48. Rescue bowel preparation: same day 2 L polyethylene glycol addition, not superior to bisacodyl addition 7 days later. [ DIGESTIVE DISEASES AND SCIENCES ] - 2014.09.15
    49. Is a stricter colonoscopy screening protocol necessary in liver transplant recipients? Comparison with an average-risk population. [ DISEASES OF THE COLON & RECTUM ] - 2014.08.01
    50. Risk of developing metachronous colon neoplasm after polypectomy: comparison of one-stage versus two-stage polypectomy. [ SURGICAL ENDOSCOPY AND OTHER INTERVENTIONAL TECHNIQUES ] - 2014.05.15
    51. Clinical outcomes of colonic mucosal cancers with histologically positive or uncertain resection margin after endoscopic resection. [ HEPATO-GASTROENTEROLOGY ] - 2014.02.01
    52. Is a repeat double balloon endoscopy in the same direction useful in patients with recurrent obscure gastrointestinal bleeding? [ JOURNAL OF CLINICAL GASTROENTEROLOGY ] - 2013.07.15
    53. Double balloon enteroscopy can be safely done in elderly patients with significant co-morbidities. [ JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY ] - 2012.12.01
    54. Risk stratification for advanced proximal colon neoplasm and individualized endoscopic screening for colorectal cancer by a risk-scoring model. [ GASTROINTESTINAL ENDOSCOPY ] - 2012.10.01
    55. EUS-guided fine needle aspiration and trucut needle biopsy for examination of rectal and perirectal lesions. [ SCANDINAVIAN JOURNAL OF GASTROENTEROLOGY ] - 2011.12.01
    56. Endoscopic submucosal dissection with or without snaring for colorectal neoplasms. [ GASTROINTESTINAL ENDOSCOPY ] - 2011.11.05
    57. Gallstone ileus successfully treated with endoscopic fragmentation by using double-balloon endoscopy (with video) [ GASTROINTESTINAL ENDOSCOPY ] - 2011.07.01
    58. Education can Improve Inter-Observer Agreement in Double Balloon Endoscopy Assessment [ HEPATO-GASTROENTEROLOGY ] - 2011.05.01
    59. Adiponectin and adiponectin receptor in relation to colorectal cancer progression [ INTERNATIONAL JOURNAL OF CANCER ] - 2010.12.15
    60. Endoscopic submucosal dissection for treatment of rectal carcinoid tumors [ GASTROINTESTINAL ENDOSCOPY ] - 2010.07.15
    61. [Two cases of multiple adenomas in the ileal pouch after total proctocolectomy in patients with familial adenomatous polyposis]. [ 대한소화기학회지 ] - 2010.07.01
    62. Is Endoscopic Closure with Clips Effective for Both Diagnostic and Therapeutic Colonoscopy-Associated Bowel Perforation? [ SURGICAL ENDOSCOPY AND OTHER INTERVENTIONAL TECHNIQUES ] - 2010.05.15
    63. 현성 소장 출혈 의심 환자에서 이중풍선 소장내시경 후 추적 관찰: 재출혈률을 중심으로 [ 대한소화기내시경학회지 ] - 2010.03.01
    64. 내시경으로 절제한 원발성 직장 기형종 1예 [ 대한소화기내시경학회 ] - 2009.11.25
    65. A pilot study about tolerability to double balloon endoscopy: comparison to esophagogastroduodenoscopy and colonoscopy [ DIGESTIVE DISEASES AND SCIENCES ] - 2009.11.01
    66. 소장내시경으로 진단한 회장 해면상 혈관종 1예 [ 대한내과학회 ] - 2009.09.17
    67. 이중풍선 소장내시경으로 진단한 회장 해면상 혈관종 1예 [ 대한내과학회 ] - 2009.09.01
    68. Usefulness of double balloon endoscopy in patients with surgically distorted intestinal anatomy [ JOURNAL OF CLINICAL GASTROENTEROLOGY ] - 2009.09.01
    69. Clinical features predicting the detection of abnormalities by double balloon endoscopy in patients with suspected small bowel bleeding. [ JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY ] - 2008.07.01
    70. Visceral obesity as a risk factor for colorectal neoplasm [ JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY ] - 2008.03.01
    71. 대장내시경 정결액으로서 sulfate free polyethylene glycol 용액과 기존 polyethylene glycol 용액의 전향적 비교 [ 대한내과학회지 ] - 2008.01.01
    72. A Case of Rectal Carcinoid with Invasion to Proper Muscle Layer [ 대한소화기학회지 ] - 2007.10.25
    73. Double balloon endoscopy in obscure GI bleeding [ GASTROINTESTINAL ENDOSCOPY ] - 2007.09.01
    74. Colorectal neoplasm in asymptomatic Asians: a prospective multinational multicenter colonoscopy survey. [ GASTROINTESTINAL ENDOSCOPY ] - 2007.06.01
    75. Antitumor necrosis factor-alpha therapy for early postoperative recurrence of gastrointestinal Behçet's disease: report of a case [ Diseases of the colon & Rectum ] - 2007.05.01
    76. 대장 병변 절제에 있어 점막하 박리술 및 올가미 절제술 병용 치료의 유용성 [ 대한소화기내시경학회지 ] - 2006.08.30
    77. 내시경 절제가 어려운 대장 용종에 대한 대책 [ 대한소화기내시경학회지 ] - 2006.08.27
    78. 소장 병변 진단에서 이중풍선소장내시경과 소장조영술의 비교 [ 대한소화기학회지 ] - 2006.07.01
    79. 당뇨병에 동반된 변비의 임상적 특성 [ 대한내과학회지 ] - 2006.05.17
    80. Colorectal EUS: Focused on Rectal Anatomy [ 대한소화기내시경학회 ] - 2006.03.01
    81. Clinical course of distal ulcerative colitis in relation to appendiceal orifice inflammation status [ INFLAMMATORY BOWEL DISEASES ] - 2005.04.14
    82. Clinicopathological significance of vascular endothelial growth factor-C and cyclooxygenase-2 in esophageal squamous cell carcinoma [ JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY ] - 2004.06.01
    83. 점막내 신생물 및 대장암 진단에 있어 공초점 레이저 내시경의 역할 [ 대한소화기학회지 ] - 2004.03.01

    연구과제 수주실적

    1. 대장내시경 검사 시의 전처치용 장세척을 위한 자를 대상으로 하는 전향적, 무작위배정, 단일눈가림 (평가자), 평행, 다기관, 제 3상 임상시험 - 2022.11.07 ~ 2023.10.31
    2. 가족성 샘종성 폴립증이 있는 임상시험대상자에서 야누스 키나아제 (JAK) 억제제인 JNJ64251330의 유효성 및 안전성을 평가하는 제1b상 임상시험 - 2021.11.10 ~ 2023.06.08
    3. 대장내시경 시행 환자를 대상으로 인공지능 Smart Endo 의 선종발견율의 우월성을 평가하기 위한 전향적, 다기관, 대조군, 무작위 배정, 공개, 비교 임상시험 - 2021.04.22 ~ 2021.12.30
    4. 대장암 조기 진단을 위한 WGS 기계학습 기반 액체 생검 - 2021.04.15 ~ 2022.12.30
    5. 저용량 장정결제인 크린뷰올산과 오라팡 정의 장정결 효과 및 선호도 비교 연구 - 2020.07.09 ~ 2021.06.30
    6. 인공지능 기반 대장내시경 컴퓨터보조진단 개발 : 용종 발견 및 병리학적 진단 예측 - 2019.03.01 ~ 2020.02.29
    7. 인공지능 기반 대장내시경 컴퓨터보조진단 개발 : 용종 발견 및 병리학적 진단 예측 - 2018.03.01 ~ 2019.02.28
    8. 대장 내시경 검사 시의 전처치용 장세척을 위한 자를 대상으로 하는 전향적 무작위배정 단일눈가림 (평가자) 평행 다기관 제 3상 임상시험 - 2017.11.06 ~ 2018.11.30
    9. 인공지능 기반 대장내시경 컴퓨터보조진단 개발 : 용종 발견 및 병리학적 진단 예측 - 2017.03.01 ~ 2018.02.28
    10. 줄기세포 시트를 이용한 염증성 장질환의 새로운 치료방법 연구 - 2017.01.01 ~ 2017.12.31
    11. 대장내시경 전처치를 위한 저 용량하제의 임상적 유용성에 대한 전향적 비교연구 - 2016.07.04 ~ 2017.12.31
    12. 대장내시경 전처치에 있어서 저용량하제의 효과 및 안전성에 대한 전향적 비교연구 - 2016.05.04 ~ 2017.12.31
    13. 줄기세포 시트를 이용한 염증성 장질환의 새로운 치료방법 연구 - 2016.01.01 ~ 2016.12.31
    14. 줄기세포 시트를 이용한 염증성 장질환의 새로운 치료방법 연구 - 2015.01.01 ~ 2015.12.31
    15. 대장 진행성 샘종 및 대장암의 생체 표지자로서 fecal microRNA 및 fecal metabolic finger printing 의 진단적 이용 가능성 조사. - 2014.03.27 ~ 2014.12.31
    16. Clostridium difficile에 의한 설사(CDAD)를 겪는 시험대상자에서 vancomycin과 비교하여 cadazolid의 유효성 및 안전성을 평가하는 다기관, 무작위배정, 이중눈가림 시험 - 2014.02.06 ~ 2015.12.31
    17. 대장종양 내시경절제술에 있어 올가미절제술과 내시경점막하박리술 병합 절제술 술기의 최적화 : 내시경점막하박리술 단독과의 비교연구 - 2013.07.01 ~ 2014.12.31
    18. 대장용종 절제에 있어 올가미절제술/내시경점막하박리술 병합 술기와 내시경점막하박리 술 단독 술기의 전향적 비교 연구 - 2013.07.01 ~ 2014.12.31

    특허/기술이전실적

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    국내외 경력

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