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Seungwoon Baek

Sungkyunkwan University · Medicine

About the Lab

Professor Seungwoon Baek's research lab specializes in hepatocellular carcinoma (HCC) management, with a strong focus on optimizing treatment strategies for patients with chronic hepatitis B virus (HBV) infection. The lab investigates the long-term outcomes of antiviral therapy, including the clinical significance of low-level viremia and the role of antiviral treatment in compensated cirrhotic patients. Key research directions include evaluating the effectiveness of radiofrequency ablation versus surgical resection for small HCC, assessing the impact of multidisciplinary team (MDT) management on survival, and validating staging systems like BCLC and HKLC in guiding personalized treatment. The lab also conducts rigorous evidence-based evaluations of retreatment strategies in HCC and HBV management.

hepatocellular carcinomachronic hepatitis Bantiviral therapyHCC staging systemsmultidisciplinary management

Research Overview

Papers
488
Total Citations
18,667
Papers (5y)
39
Primary Field
Medicine

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
39total
2020
2021
2022
2023
2025
Citations per year (5y)
1,350total
20202021202220232025

Selected Papers

15
1
Article|222 citations·2005
Comparing the Outcomes of Radiofrequency Ablation and Surgery in Patients With a Single Small Hepatocellular Carcinoma and Well-Preserved Hepatic Function
Sung Noh Hong, Sun‐Young Lee, Moon Seok Choi, Joon Hyeok Lee, Kwang Cheol Koh, Seung Woon Paik, Byung Chul Yoo, Poong‐Lyul Rhee, Dongil Choi, Hyo Keun Lim, Kwang‐Woong Lee, Jae‐Won Joh
SJR Q2Journal of Clinical Gastroenterology

Despite a higher rate of local recurrence, RFA was found to be as effective as surgical resection for the treatment of single small HCC in patients with well-preserved liver function, in terms of the incidence of remote recurrence and the patients' likelihood of achieving overall and/or recurrence-free survival.

HepatologyMedicine
2
Article|204 citations·2016
Low‐level viremia and the increased risk of hepatocellular carcinoma in patients receiving entecavir treatment
Jung Hee Kim, Dong Hyun Sinn, Wonseok Kang, Geum‐Youn Gwak, Yong‐Han Paik, Moon Seok Choi, Joon Hyeok Lee, Kwang Cheol Koh, Seung Woon Paik
SJR Q1HepatologyOA

The long-term clinical impact of low-level viremia (LLV; <2,000 IU/mL) is not well understood. As a result, it is unclear whether the development of LLV during entecavir monotherapy requires a change in therapy. A retrospective cohort of 875 treatment-naive chronic hepatitis B virus (HBV) monoinfected patients (mean age 47.7 years, male = 564 [65.5%], cirrhosis = 443 [50.6%]) who received entecavir monotherapy were analyzed for the development of hepatocellular carcinoma (HCC). The HCC risk was

EpidemiologyMedicine
3
Article|132 citations·2015
Hepatocellular carcinoma risk in chronic hepatitis B virus–infected compensated cirrhosis patients with low viral load
Dong Hyun Sinn, Junggyu Lee, Juna Goo, Kyunga Kim, Geum‐Youn Gwak, Yong‐Han Paik, Moon Seok Choi, Joon Hyeok Lee, Kwang Cheol Koh, Byung Chul Yoo, Seung Woon Paik
SJR Q1Hepatology

UNLABELLED: Controversy exists about whether antiviral therapy (AVT) should be recommended for compensated cirrhosis patients with chronic hepatitis B virus (HBV) infection and detectable, but low, serum HBV-DNA levels. A retrospective cohort of 385 treatment-naïve, HBV-related compensated cirrhosis patients (mean age: 51.1 ± 9.7 years; 66% male) with low HBV-DNA levels (<2,000 IU/mL) was assessed for the development of hepatocellular carcinoma (HCC). During a median of 5.6 years of follow-up, H

EpidemiologyMedicine
4
Review|107 citations·2004
Levels of Evidence for the Outcome of Endodontic Retreatment
Seung Woon Paik, C SECHRIST, Mahmoud Torabinejad
SJR Q1Journal of Endodontics

The purpose of this investigation was 2-fold: (a) to complete a thorough search of published literature related to clinical studies on the success and failure of nonsurgical retreatment, and (b) to assign levels of evidence to these publications. Clinical studies related to success and failure of retreatment since 1970 were identified using both electronic and manual literature searches. After identification of pertinent literature, each article received a level of evidence (LOE) from one (high)

Oral SurgeryDentistry
5
Article|94 citations·2019
Multidisciplinary approach is associated with improved survival of hepatocellular carcinoma patients
Dong Hyun Sinn, Gyu-Seong Choi, Hee Chul Park, Jong Man Kim, Honsoul Kim, Kyoung Doo Song, Tae Wook Kang, Min Woo Lee, Hyunchul Rhim, Dongho Hyun, Sung Ki Cho, Sung Wook Shin
SJR Q1PLoS ONEOA

BACKGROUND: Given the complexity of managing hepatocellular carcinoma (HCC), a multidisciplinary approach (MDT) is recommended to optimize management of HCC patients. However, evidence suggesting that MDT improves patient outcome is limited. METHODS: We performed a retrospective cohort study of all patients newly-diagnosed with HCC between 2005 and 2013 (n = 6,619). The overall survival (OS) rates between the patients who were and were not managed via MDT were compared in the entire cohort (n =

HepatologyMedicine
6
Article|65 citations·2016
The recommended treatment algorithms of the BCLC and HKLC staging systems: does following these always improve survival rates for HCC patients?
Kwang Min Kim, Dong Hyun Sinn, Sin‐Ho Jung, Geum‐Youn Gwak, Yong‐Han Paik, Moon Seok Choi, Joon Hyeok Lee, Kwang Cheol Koh, Seung Woon Paik
SJR Q1Liver International

BACKGROUND & AIMS: Several staging systems have been proposed for hepatocellular carcinoma (HCC). Among them, only the Barcelona Clinic Liver Cancer (BCLC) and Hong Kong Liver Cancer (HKLC) staging systems also recommend treatment modality. This study was designed to see whether BCLC and HKLC staging can guide treatment strategy, so analyzed whether patients survival is better for those who received recommended therapy by each staging system. METHODS: A total of 3515 treatment-naïve, newly diagn

HepatologyMedicine
7
Article|60 citations·2011
The change of the quantitative HBsAg level during the natural course of chronic hepatitis B
Yu J. Kim, Hyun C. Cho, Moon Seok Choi, Joon‐Hyung Lee, Kwang Cheol Koh, Byung Chul Yoo, Seung Woon Paik
SJR Q1Liver International

BACKGROUND: There is insufficient information about HBsAg levels and their correlation with serum hepatitis B virus (HBV) DNA in chronic hepatitis B (CHB). AIMS: We aimed to describe HBsAg levels during various phases of CHB and to investigate the correlation with serum HBV DNA levels. METHODS: A total of 645 treatment-naïve Korean CHB patients were included in this retrospective cross-sectional study. They were categorized into immune tolerance (IT, n=56), HBeAg-positive hepatitis (EPH, n=150),

EpidemiologyMedicine
8
Article|43 citations·2008
Disease progression and the risk factor analysis for chronic hepatitis C
Dong Hyun Sinn, Seung Woon Paik, Pung Kang, Jae Sook Kil, Sang Un Park, So‐Young Lee, Soon Mi Song, Geum‐Youn Gwak, Moon Seok Choi, Joon Hyoek Lee, Kwang Cheol Koh, Byung Chul Yoo
SJR Q1Liver InternationalOA

BACKGROUND/AIMS: The present study aimed to assess the incidence of advanced cirrhotic complications and to identify the risk factors associated with such complications in chronic hepatitis C. METHODS: The data of 1137 chronic hepatitis C patients were retrospectively reviewed. We analysed the incidence rate and risk factors for 'disease progression', as defined by the occurrence of an increase of at least 2 points in the Child-Pugh score, oesophageal/gastric variceal bleeding, spontaneous bacte

HepatologyMedicine
9
Article|37 citations·2011
Association of a single nucleotide polymorphism near the interleukin‐28B gene with response to hepatitis C therapy in Asian patients
Dong Hyun Sinn, Yu J Kim, Seung‐Tae Lee, Geum‐Youn Gwak, Moon Seok Choi, Joon H Lee, Kwang Cheol Koh, Byung Chul Yoo, Seung Woon Paik
SJR Q1Journal of Gastroenterology and Hepatology

BACKGROUND AND AIMS: A single nucleotide polymorphism near the interleukin-28B (IL28B) gene has been shown to predict hepatitis C virus (HCV) treatment response. We aim to determine the role of the IL28B genotype in Asian patients. METHODS: A total of 118 patients (all Korean, 55 patients with genotype 1 infection and 63 patients with genotype 2 infection) were consecutively enrolled and analyzed. RESULTS: The sustained virological response (SVR) rate was 74% (87/118), while 26 patients (22%) re

HepatologyMedicine
10
Article|35 citations·2019
Hepatitis B virus DNA levels and overall survival in hepatitis B‐related hepatocellular carcinoma patients with low‐level viremia
Tae‐Se Kim, Dong Hyun Sinn, Wonseok Kang, Geum‐Youn Gwak, Yong‐Han Paik, Moon Seok Choi, Joon Hyeok Lee, Kwang Cheol Koh, Seung Woon Paik
SJR Q1Journal of Gastroenterology and Hepatology

BACKGROUND AND AIM: Clinical course of hepatitis B virus (HBV)-related hepatocellular carcinoma (HCC) patients presenting with low-level viremia (LLV) is unclear. METHODS: A total of 565 HBV-related HCC patients with LLV (detectable but HBV DNA ≤ 2000 IU/mL) at the time of HCC diagnosis were analyzed. Based on patterns of HBV DNA levels during follow-up, patients were categorized into three groups: maintained virologic remission (MVR), LLV, and flare. Overall survival was compared between those

EpidemiologyMedicine
11
Article|31 citations·2013
Protein Induced by Vitamin K Antagonist‐II (PIVKA‐II) Is a Reliable Prognostic Factor in Small Hepatocellular Carcinoma
Jong Man Kim, Choon Hyuck, Choon Hyuck David Kwon, Jae‐Won Joh, Joon Hyeok Lee, Seung Woon Paik, Cheol Keun Park
SJR Q1World Journal of Surgery

BACKGROUND: Hepatocellular carcinoma (HCC) <2 cm in diameter has a favorable prognosis. Therefore surgical resection of small HCC is associated with good outcomes. However, the predisposing factors of prognosis following resection of HCC remain ill-defined. The aims of the present study were to identify the clinicopathologic characteristics and outcomes of patients with small HCC and analyze the predisposing factors for tumor recurrence after surgery. METHODS: We retrospectively reviewed 180 pat

HepatologyMedicine
12
Article|24 citations·2010
Efficacy of peg‐interferon‐α‐2a plus ribavirin for patients aged 60 years and older with chronic hepatitis C in Korea
Dong Hyun Sinn, Su Rin Shin, Jae Sook Kil, Jeong Kim, Geum‐Youn Gwak, Moon Seok Choi, Joon Hyeok Lee, Kwang Cheol Koh, Byung Chul Yoo, Seung Woon Paik
SJR Q1Journal of Gastroenterology and Hepatology

BACKGROUND AND AIM: In the present study, we evaluated the safety and efficacy of combination therapy with pegylated interferon and ribavirin for treating chronic hepatitis C (CHC) patients aged 60 years and older. METHODS: A total of 314 CHC patients, who were treated with combination therapy, were classified into three groups according to age: (i) younger than 50 years (n = 137); (ii) 50-59 years (n = 109); and (iii) 60 years or older (n = 68). The sustained virological response (SVR) and disc

HepatologyMedicine
13
Article|23 citations·2002
Is lamivudine with 1-week hblg as effective as long-term high-dose hblg in hbv prophylaxis after liver transplantation?
S.-J Park, Seung Woon Paik, Moon Seok Choi, J.H Lee, Kwang Cheol Koh, S.J Kim, Jae‐Won Joh, S.K Lee
SJR Q3Transplantation Proceedings
EpidemiologyMedicine
14
Review|19 citations·2001
and choice of adjuvant chemotherapy in breast cancer
Seung Woon Paik
SJR Q1Seminars in Oncology
OncologyMedicine
15
Article|15 citations·2002
Outcome of Orthotopic Liver Transplantation in Patients with Hepatitis C
Seung Woon Paik, Henkie P. Tan, Andrew S. Klein, John K. Boitnott, Paul J. Thuluvath
SJR Q2Digestive Diseases and Sciences
HepatologyMedicine

Research Areas

HepatologyEpidemiologySurgeryOncologyPulmonary and Respiratory MedicineRheumatology

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