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구자설 교수

Ja-Sul Gu

고려대학교 내과 · 의학

연구실 소개

구자설 교수의 연구실은 대장질환, 특히 염증성 장질환과 대장암의 조기 진단 및 치료 개선을 핵심 목표로 삼고 있습니다. 특히 대장내 endoscopy 기반 진단 기술의 정밀도 향상, 병변 탐지율 향상을 위한 이미지 강화 내 endoscopy(IEE) 기법의 응용, 그리고 병리적 진단의 정확성을 높이기 위한 병행 진단 전략 개발에 집중하고 있습니다. 또한 복부비만과 염증성 장질환 간의 인과관계 분석을 통해 대사적 위험 요인의 역할을 규명하고 있습니다.

대장내 endoscopy이미지 강화 내 endoscopy염증성 장질환대장암 선별복부비만

연구 현황

논문 수
254
총 인용 수
3,630
최근 5년 논문
33
주요 분야
의학

연구 성과 추이

표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.

5개년 연도별 논문 게재 수
33총합
2022
2023
2024
2025
2026
5개년 연도별 피인용 수
282총합
20222023202420252026

주요 논문

15
1
논문|인용수 110·2017
Diagnostic delay in inflammatory bowel disease increases the risk of intestinal surgery
Dong-Won Lee, Ja Seol Koo, Jung Wan Choe, Sang Jun Suh, Seung Young Kim, Jong Jin Hyun, Sung Woo Jung, Young Kul Jung, Hyung Joon Yim, Sang Woo Lee
SJR Q1World Journal of GastroenterologyOA

A diagnostic delay was associated with poor outcomes, such as increased intestinal surgery risks in patients with CD and UC.

GeneticsBiochemistry, Genetics and Molecular Biology
2
논문|인용수 19·2017
Association between bowel habits and quality of bowel preparation for colonoscopy
Dong-Won Lee, Ja Seol Koo, Seong-Hee Kang, Seung Young Kim, Jong Jin Hyun, Sung Woo Jung, Hyung Joon Yim, Sang Woo Lee
SJR Q3MedicineOA

The effectiveness of colonoscopy is highly dependent on the quality of bowel preparation. Although many studies have previously evaluated the role of cleansing methods and dosing regimens, few have examined the association between bowel habits and subsequent bowel preparation. Here, we aimed to evaluate the impact of bowel habits on the quality of bowel preparation.A total of 404 patients who underwent a total colonoscopy and completed a personal bowel habit questionnaire at Korea University Hos

OncologyMedicine
3
논문|인용수 18·2009
Fulminant amebic colitis mimicking pseudomembranous colitis
Ja Seol Koo, Won Suk Choi, Dae Won Park
SJR Q1Gastrointestinal Endoscopy
Infectious DiseasesMedicine
4
논문|인용수 13·1982
The Value of Colonoscopy in the Diagnosis of Ileo-Caecal Tuberculosis
Ja Seol Koo, Jennifer Ho, G. B. Ong
SJR Q1Endoscopy

Abdominal tuberculosis is a rare manifestation of tuberculosis and sometimes offers difficulties in diagnosis. In this regard colonoscopy with targeted biopsy may be a valuable help to differentiate tuberculous lesions from other diseases of the large bowel. Nodular lesions with areas of polypoid changes are the major gross appearence sometimes simulating neoplastic changes.

SurgeryMedicine
5
논문|인용수 13·2021
Palliative Care and Life-Sustaining/Local Procedures in Colorectal Cancer in the United States Hospitals: A Ten-Year Perspective
Zahra Mojtahedi, Ja Seol Koo, Ji Won Yoo, Pearl Kim, Hee‐Taik Kang, Jinwook Hwang, Moon Kyung Joo, Jay J. Shen
SJR Q2Cancer Management and ResearchOA

Palliative care utilization increased over time and was inversely associated with hospital charges and performing procedures among colorectal cancer patients. Our findings warrant further research and interventions to increase palliative care utilization in colorectal cancer.

Public Health, Environmental and Occupational HealthMedicine
6
논문|인용수 13·2009
Abdominal Obesity as a Risk Factor for the Development of Erosive Esophagitis in Subjects with a Normal Esophago-Gastric Junction
Ja Seol Koo, Sang Woo Lee, Sun Min Park, Sung Woo Jung, Hyung Joon Yim, Jong Jae Park, Hoon Jai Chun, Hong Sik Lee, Jai Hyun Choi, Chang Duck Kim, Ho Sang Ryu
SJR Q1Gut and LiverOA

Our study showed that abdominal circumference is an independent risk factor for EE, demonstrating a temporal relationship between abdominal obesity and EE.

GastroenterologyMedicine
7
리뷰|인용수 10·2014
Equipment-Based Image-Enhanced Endoscopy for Differentiating Colorectal Polyps
Ja Seol Koo
SJR Q2Clinical EndoscopyOA

The use of colonoscopy for the screening and surveillance of colorectal cancer has increased. However, the miss rate of advanced colorectal neoplasm is known to be 2% to 6%, which could be affected by the image intensity of colorectal lesions. Image-enhanced endoscopy (IEE) is capable of highlighting lesions, which can improve the colorectal adenoma detection rate and diagnostic accuracy. Equipment-based IEE methods, such as narrow band imaging (NBI), Fujinon intelligent color enhancement (FICE)

OncologyMedicine
8
논문|인용수 9·2014
Risk of adenomas with high‐risk characteristics based on two previous colonoscopy
Kang‐Heum Suh, Ja Seol Koo, Jong Jin Hyun, Jungsoon Choi, Jang Soo Han, Seung Young Kim, Sung Woo Jung, Yoon Tae Jeen, Sang Woo Lee, Jai Hyun Choi
SJR Q1Journal of Gastroenterology and Hepatology

BACKGROUND AND AIM: The recommended intervals between surveillance colonoscopies are based on the most recent examination findings. However, whether the two previous colonoscopies affect second surveillance colonoscopic findings is not established. The aim of this study is to estimate the risk of obtaining high-risk findings (HRF) on the next surveillance colonoscopy using the results of two previous colonoscopies, and to estimate the appropriate time interval for the next surveillance colonosco

OncologyMedicine
9
논문|인용수 8·2007
Conscious Sedation with Midazolam Combined with Propofol for Colonoscopy
Ja Seol Koo, Jai-Hyun Choi, Sung-Woo Jung, Woosik Han, Jong-Sup Lee, Hyung-Joon Yim, Yoon-Tae Jeen, Hoon‐Jai Chun, Hong Sik Lee, Sang‐Woo Lee, Chang-Duck Kim, Ho-Sang Ryu
SJR Q2Clinical Endoscopy

Background/Aims: There is increasing interest in the use of propofol as a sedative agent for colonoscopy. We evaluated the safety and efficacy of the synergistic sedation with midazolam combined with low-dose propofol versus that of midazolam alone. Methods: A total of 56 patients from among those who underwent total colonoscopy between August 2004 and October 2004 were randomly assigned to one of three medication treatment groups. Group A (n=18) received low-dose midazolam (0.03 mg/kg IV) plus

Anesthesiology and Pain MedicineMedicine
10
논문|인용수 8·2021
Efficacy and Safety of TJP-008 Compared to 2 L PEG with Ascorbate in Colon Cleansing: A Randomized Phase 3 Trial
Ja Seol Koo, Jeong‐Sik Byeon, Bo‐In Lee, Sung-Ae Jung, Tae Il Kim, Yoon Tae Jeen
SJR Q1Gut and LiverOA

TJP-008 is a new low-volume cleansing agent with a colon cleansing efficacy comparable to that of standard 2LPEG that exhibits significant safety and tolerability.

OncologyMedicine
11
논문|인용수 7·2011
Conscious Sedation During Gastrointestinal Endoscopy: Midazolam vs Propofol
Ja Seol Koo, Jai Hyun Choi
SJR Q2Clinical Endoscopy
Anesthesiology and Pain MedicineMedicine
12
논문|인용수 7·2009
Abdominal Obesity as a Risk Factor for the Development of Erosive Esophagitis in Subjects with a Normal Esophago-Gastric Junction
구자설, 이상우, Sun Min Park, 정성우, 임형준, 박종재, Hoon Jai Chun, Hong Sik Lee, 최재현, 김창덕, 유호상

Background/Aims: Obesity is reported to be associated with erosive esophagitis (EE). However, the temporal association of obesity and abdominal obesity with EE is unclear. We conducted this study to investigate the temporal association of obesity, especially abdominal obesity with EE. Methods: Among 1,182 subjects who underwent health screening examinations including upper endoscopy in both 2003 and 2006, a total 1,029 subjects with a normal esophagogastric junction on upper endoscopy in 2003 we

13
논문|인용수 3·2023
The Effect of Necrosis Inhibitor on Dextran Sulfate Sodium Induced Chronic Colitis Model in Mice
Dong‐Woo Kim, Ja Seol Koo, Soon Ha Kim, Yeong Seo Park, Jung Wan Choe, Seung Young Kim, Jong Jin Hyun, Sung Woo Jung, Young Kul Jung, Hyung Joon Yim
SJR Q1PharmaceuticsOA

Uncontrolled chronic inflammation and necrosis is characteristic of inflammatory bowel disease (IBD). This study aimed to investigate the effect of necrosis inhibitor (NI, NecroX-7) on a dextran sulfate sodium (DSS) induced chronic colitis model of mice. DSS was administered on days 1-5, and the NI was administered intraperitoneally (3 mg/kg, 30 mg/kg) on days 1, 3, and 5 as well as every other day during the first five days of a three-week cycle. Three cycles of administration were performed. C

Clinical BiochemistryBiochemistry, Genetics and Molecular Biology
14
논문|인용수 3·2011
의식하 진정 내시경검사: Midazolam vs Propofol
구자설, 최재현

내시경검사에 진정제를 사용하는 의식하 진정 내시경검사는 점차 증가하고 있으며 벤조다이아제핀과 아편유사제가 흔히 사용되었다. Midazolam은 다른 벤조다이아제핀계 약물보다 효과가 빠르게 나타나고 지속시간이 짧은 장점이 있으나 부작용으로 호흡억제가 발생할 수 있다. 그러나, 벤조다이아제핀 길항제인 flumazenil을 사용하여 midazolam의 호흡억제 효과를 감소시킬 수 있다. Midazolam과 아편유사제의 병합은 효과적이며 안전한 진정방법으로 일반적인 상부위장관 내시경과 대장내시경 검사에 적합하다. Propofol은 지용성으로 midazolam보다 진정 유도와 회복이 빠른 장점이 있으나 저혈압과 일시적 무호흡이 보고되어 주의가 필요하다. 내시경 의사의 감독 하에 적절하게 훈련받은 의료인에 의한 propofol 투여는 효과적이고 안전하며, propofol 투여 방법으로는 간호사가 환자를 감시하면서 propofol을 투약하는 nurse-administered propofol se

15
논문|인용수 2·2014
Equipment-Based Image-Enhanced Endoscopy for Differentiating Colorectal Polyps
구자설

The use of colonoscopy for the screening and surveillance of colorectal cancer has increased. However, the miss rate of advanced colorectal neoplasm is known to be 2% to 6%, which could be affected by the image intensity of colorectal lesions. Image-enhanced endoscopy (IEE) is capable of highlighting lesions, which can improve the colorectal adenoma detection rate and diagnostic accuracy. Equipment-based IEE methods, such as narrow band imaging (NBI), Fujinon intelligent color enhancement (FICE)

대표 연구 분야

SurgeryGeneticsPulmonary and Respiratory MedicineGastroenterologyOncologyHepatology

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