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오치혁 교수

Chi-hyuk Oh

경희대학교 소화기내과 · 의학

연구실 소개

오치혁 교수의 연구실은 주로 담도결석, 췌장외과적 병변, 그리고 내 endoscopic 치료 분야에 초점을 맞추고 있습니다. 특히 ERCP를 통한 담도결석 제거 및 재발 예방, 내시경적 담도 조영술, 내시경 초음파 유도 치료 등 고도화된 내시경 기법의 임상적 적용과 안전성 향상을 연구하고 있습니다. 또한 방사선 노출 최소화 전략과 임상 가이드라인 정립에도 기여하고 있습니다.

ERCP담도결석내시경 치료방사선 노출내시경 초음파 유도 치료

연구 현황

논문 수
86
총 인용 수
717
최근 5년 논문
41
주요 분야
의학

연구 성과 추이

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

5개년 연도별 논문 게재 수
41총합
2021
2022
2023
2024
2025
5개년 연도별 피인용 수
276총합
20212022202320242025

주요 논문

15
1
논문|인용수 35·2015
Suboptimal Bowel Preparation Significantly Impairs Colonoscopic Detection of Non-polypoid Colorectal Neoplasms
Chi Hyuk Oh, Chang Kyun Lee, Jung‐Wook Kim, Jae‐Jun Shim, Jae Young Jang
SJR Q2Digestive Diseases and Sciences
OncologyMedicine
2
리뷰|인용수 31·2020
Recent advances in the management of difficult bile-duct stones: a focus on single-operator cholangioscopy-guided lithotripsy
Chi Hyuk Oh, Seok Ho Dong
SJR Q2The Korean Journal of Internal MedicineOA

The most effective and the standard treatment for bile duct stones (BDSs) is endoscopic retrograde cholangiopancreatography (ERCP). However, in 10% to 15% of patients with BDSs, the stones cannot be removed by conventional ERCP, which involves endoscopic sphincterotomy followed by balloon or basket extraction. Additional techniques or devices are often necessary to remove these difficult bileduct stones, including endoscopic papillary large balloon dilatation to make a larger papillary opening a

Pulmonary and Respiratory MedicineMedicine
3
리뷰|인용수 22·2021
Clinical Practice Guidelines for the Endoscopic Management of Peripancreatic Fluid Collections
Chi Hyuk Oh, Jun Kyu Lee, Tae Jun Song, Jin‐Seok Park, Jae Min Lee, Jun Hyuk Son, Dong Kee Jang, Miyoung Choi, Jeong‐Sik Byeon, In Seok Lee, Soo Teik Lee, Ho Soon Choi
SJR Q2Clinical EndoscopyOA

Endoscopic ultrasonography-guided intervention has gradually become a standard treatment for peripancreatic fluid collections (PFCs). However, it is difficult to popularize the procedure in Korea because of restrictions on insurance claims regarding the use of endoscopic accessories, as well as the lack of standardized Korean clinical practice guidelines. The Korean Society of Gastrointestinal Endoscopy (KSGE) appointed a Task Force to develope medical guidelines by referring to the manual for c

SurgeryMedicine
4
리뷰|인용수 15·2022
Minimizing radiation exposure in endoscopic retrograde cholangiopancreatography: a review for medical personnel
Chi Hyuk Oh, Byoung Kwan Son
SJR Q2The Korean Journal of Internal MedicineOA

Fluoroscopy is used frequently during endoscopic procedures, such as endoscopic retrograde cholangiopancreatography (ERCP). However, exposure to radiation is an important health concern, primarily because of the potential increase in the lifetime risk of malignancy. This consideration is important for patients and staff exposed to radiation during ERCP. Thus, an understanding of how radiation doses are measured during ERCP and the potential risks of this radiation is important. Additionally, sta

Radiology, Nuclear Medicine and ImagingMedicine
5
리뷰|인용수 10·2015
Recent Advances in the Management of Recurrent Bile Duct Stones
Chi Hyuk Oh, Seok Ho Dong
SJR Q3Korean Journal of GastroenterologyOA

Approximately 3-15% of patients who have undergone removal of bile duct stones with endoscopic sphincterotomy have recurrence of stones which often presents as acute cholangitis. Despite better understanding on the factors and mechanisms underlying the recurrence of bile duct stones achieved during the past few decades, endoscopic removal still remains the mainstay of management for recurrent bile duct stones. Recently investigated and suggested management of recurrent bile duct stones are highl

Pulmonary and Respiratory MedicineMedicine
6
논문|인용수 9·2020
Radiation exposure during endoscopic retrograde cholangiopancreatography according to clinical determinants
Chi Hyuk Oh, Seok Ho Dong, Jung‐Wook Kim, Gi‐Ae Kim, Jae Min Lee
SJR Q3MedicineOA

This study aimed to analyze the dose of radiation to which the physician is exposed during endoscopic retrograde cholangiopancreatography (ERCP) and to identify predictive factors of radiation exposure during the procedure. Furthermore, we evaluated the patient characteristics and procedural factors associated with prolonged fluoroscopy time (FT).A cross-sectional retrospective analysis of 780 ERCPs performed at a tertiary academic hospital over a 2-year period was conducted. The primary outcome

Pulmonary and Respiratory MedicineMedicine
7
논문|인용수 8·2020
Progression to invasive cancer after snare polypectomy of intracholecystic papillary neoplasms during gallbladder stone removal by percutaneous transhepatic choledochoscopy: a case report
Chi Hyuk Oh, Seok Ho Dong
SJR Q2BMC GastroenterologyOA

BACKGROUND: Intracholecystic papillary neoplasms (ICPNs) of the gallbladder are rare, preinvasive lesions characterized by an intracholecystic papillary growth that may be associated with invasive adenocarcinoma. The natural history of ICPN is unknown. Here, we report a case of ICPN, highlighting its natural course. CASE PRESENTATION: A 79-year-old woman presented to the emergency department with perforated cholecystitis. After percutaneous transhepatic gallbladder drainage, due to the presence

SurgeryMedicine
8
논문|인용수 6·2021
Clinical Practice Guidelines for the Endoscopic Management of Peripancreatic Fluid Collections
Chi Hyuk Oh, Tae Jun Song, Jun Kyu Lee, Jin‐Seok Park, Jae Min Lee, Jun Hyuk Son, Dong Kee Jang, Miyoung Choi, Jeong‐Sik Byeon, In Seok Lee, Soo Teik Lee, Ho Soon Choi
SJR Q1Gut and LiverOA

Endoscopic ultrasonography-guided intervention has gradually become a standard treatment for peripancreatic fluid collections (PFCs). However, it is difficult to popularize the procedure in Korea because of restrictions on insurance claims regarding the use of endoscopic accessories, as well as the lack of standardized Korean clinical practice guidelines. The Korean Society of Gastrointestinal Endoscopy appointed a Task Force to develop medical guidelines by referring to the manual for clinical

SurgeryMedicine
9
논문|인용수 4·2021
Innumerable cerebral microbleeds in hepatitis B virus-related decompensated liver cirrhosis: a case report
Chi Hyuk Oh, Jin San Lee
SJR Q2BMC NeurologyOA

BACKGROUND: Cerebral microbleeds (CMBs) are small, rounded, dark-signal lesions on brain MRI that represent cerebral hemosiderin deposits resulting from prior microhemorrhages and are neuroimaging biomarkers of cerebral amyloid angiopathy (CAA). Here, we report a case of innumerable CMBs in a patient with hepatic encephalopathy underlying decompensated liver cirrhosis. CASE PRESENTATION: An 83-year-old woman diagnosed with hepatitis B virus-related liver cirrhosis 40 years before was referred to

NeurologyMedicine
10
논문|인용수 4·2020
Successful endoscopic retrograde cholangiopancreatography and bilateral stenting in a patient with situs inversus totalis
Chi Hyuk Oh
SJR Q1Digestive and Liver DiseaseOA
SurgeryMedicine
11
리뷰|인용수 4·2023
Gastrointestinal Follicular Lymphoma: A Single-institutional Experience of 22 Cases With Emphasis on the Comprehensive Clinicopathological Analysis and Diagnostic Re-classification
Chi Hyuk Oh, Hyun Soo Kim, Sung‐Im Do, Kiyong Na
SJR Q2Anticancer ResearchOA

Our findings support the notion that DFL differs from CFL. In cases of GIFL with atypical features, the possibility of gastrointestinal involvement by CFL should be considered. CD21 expression patterns can assist in the differential diagnosis of CFL and DFL.

Pathology and Forensic MedicineMedicine
12
논문|인용수 2·2022
Sessile serrated lesion presenting as large pedunculated polyp in the rectum: A case report
Shin Ju Oh, Jung‐Wook Kim, Chi Hyuk Oh
SJR Q3MedicineOA

RATIONALE: Sessile serrated lesions (SSLs) are serrated polyps (SP) with the typical serrated architecture of the crypt lining epithelium. SSL has an important clinical implication because they are recognized as precursor lesion of sporadic colorectal cancer (CRC) through "serrated pathway." SSLs usually appear flat to sessile, and are located in the right colon. PATIENT CONCERNS: A 69-year-old man was referred to a tertiary medical center because of intermittent hematochezia for 2 years. DIAGNO

OncologyMedicine
13
논문|인용수 2·2022
Benefits of Flavored Lactose-Free Milk for Korean Adults with Lactose Intolerance
Chi Hyuk Oh, Jung‐Wook Kim, Yoo Min Park, Gi‐Ae Kim, Jae Young Jang, Young Woon Chang, Jin Oh Yang, Ho Young Kho, Junkyu Park
SJR Q3Journal of Medicinal Food

Although lactose-free dairy products for the clinical management of lactose intolerance (LI) are widely available, scientific evidence on their efficacy is still lacking. This study comparatively analyzed the efficacy of flavored lactose-free milk (LFM) and whole milk (WM) in reducing symptoms in South Korean adults with LI. This prospective study was conducted in adults suspected of LI. All screened participants underwent the hydrogen breath test (HBT) using 570 mL of chocolate-flavored WM (20

GeneticsBiochemistry, Genetics and Molecular Biology
14
논문|인용수 2·2020
Transcatheter arterial chemoembolization-induced bile duct necrosis with hemobilia in hepatocellular carcinoma: endoscopic visualization and repair
Chi Hyuk Oh
SJR Q1EndoscopyOA

Transcatheter arterial chemoembolization (TACE) has been widely used as a palliative treatment for patients with unresectable hepatocellular carcinomas (HCCs) [1]. TACE is a relatively safe procedure, with a complication rate of < 1 % [2]. Hemobilia after TACE has very occasionally been reported [3], but endoscopic visualization of hemobilia has not been reported.

SurgeryMedicine
15
논문|인용수 2·2015
재발성 담관결석의 치료 대책
오치혁, 동석호

Approximately 3-15% of patients who have undergone removal of bile duct stones with endoscopic sphincterotomy have recurrence of stones which often presents as acute cholangitis. Despite better understanding on the factors and mechanisms underlying the recurrence of bile duct stones achieved during the past few decades, endoscopic removal still remains the mainstay of management for recurrent bile duct stones. Recently investigated and suggested management of recurrent bile duct stones are highl

대표 연구 분야

Pulmonary and Respiratory MedicineSurgeryOncologyGeneticsEpidemiologyMolecular Biology

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