Yeon Seok Seo

Dr. Yeon Seok Seo


Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 February 2022 in Journal of Hepatology
Verified
Journal Article
Closed access
HKHwi Young Kim
Hwi Young Kim
PLPietro Lampertico
Pietro Lampertico
JNJoon Yeul Nam
Joon Yeul Nam
HLHyung-Chul Lee
Hyung-Chul Lee
SKSeung Up Kim
Seung Up Kim
JLJeong-Hoon Lee
Jeong-Hoon Lee

25 September 2018 in Clinical and Molecular Hepatology
Verified
Journal Article
Open access
PDF file
DGDae Hoe Gu
Dae Hoe Gu
MKMoon Young Kim
Moon Young Kim
YSYeon Seok Seo
Yeon Seok Seo
SKSang Gyune Kim
Sang Gyune Kim
HLHan Ah Lee
Han Ah Lee
SUSoon Ho Um
Soon Ho Um
The most widely used method for diagnosing sarcopenia is the skeletal muscle index (SMI). Several studies have suggested that psoas muscle thickness per height (PMTH) is also effective for detecting sarcopenia and predicting prognosis in patients with cirrhosis. The aim of this study was to evaluate the optimal cutoff values of PMTH for detecting sarcopenia in cirrhotic patients. All cirrhotic patients who underwent abdominal computed tomography (CT) scan including L3 and umbilical levels for measuring SMI and transverse psoas muscle thickness, respectively, were included. Two definitions of sarcopenia were used: (1) sex-specific cutoffs of SMI (≤52.4 cm2 /m2 in men and ≤38.5 cm2 /m2 in women) for SMI-sarcopenia and (2) cutoff of PMTH (<16.8 mm/m) for PMTH-sarcopenia. Six hundred fifty-three patients were included. The average age was 53.6 ± 10.2 years, and 499 patients (76.4%) were men. PMTH correlated well with SMI in both men and women (P<0.001). Two hundred forty-one (36.9%) patients met the criteria for SMI-sarcopenia. The best PMTH cutoff values for predicting SMI-sarcopenia were 17.3 mm/m in men and 10.4 mm/m in women, and these were defined as sex-specific cutoffs of PMTH (SsPMTH). The previously published cutoff of PMTH was defined as sex-nonspecific cutoff of PMTH (SnPMTH). Two hundred thirty (35.2%) patients were diagnosed with SsPMTH-sarcopenia, and 280 (44.4%) patients were diagnosed with SnPMTH-sarcopenia. On a multivariate Cox regression analysis, SsPMTH-sarcopenia (hazard ratio [HR], 1.944; 95% confidence interval [CI], 1.144-3.304; P=0.014) was significantly associated with mortality, while SnPMTH-sarcopenia was not (HR, 1.446; 95% CI, 0.861-2.431; P=0.164). PMTH was well correlated with SMI in cirrhotic patients. SsPMTH-sarcopenia was an independent predictor of mortality in these patients and more accurately predicted mortality compared to SnPMTH-sarcopenia.

25 March 2018 in Clinical and Molecular Hepatology
Verified
Journal Article
Open access
PDF file
YSYeon Seok Seo
Yeon Seok Seo
Bleeding from gastroesophageal varices is a serious complication in patients with liver cirrhosis and portal hypertension. Although there has been significance improvement in the prognosis of variceal bleeding with advancement in diagnostic and therapeutic modalities for its management, mortality rate still remains high. Therefore, appropriate prevention and rapid, effective management of bleeding from gastroesophageal varices is very important. Recently, various studies about management of gastoesophageal varices, including prevention of development and aggravation of varices, prevention of first variceal bleeding, management of acute variceal bleeding, and prevention of variceal rebleeding, have been published. The present article reviews published articles and practice guidelines to present the most optimal management of patients with gastroesophageal varices.

26 May 2020 in Alimentary Pharmacology & Therapeutics
Verified
Journal Article
Open access
PDF file
HLHan Ah Lee
Han Ah Lee
HLHYUN WOONG LEE
HYUN WOONG LEE
IKIn-Hee Kim
In-Hee Kim
JPJun Yong Park
Jun Yong Park
DSDong Hyun Sinn
Dong Hyun Sinn
Seung Up KimSeung Up Kim
Seung Up Kim
Summary: Background: Anti‐viral therapy is not indicated for patients with chronic hepatitis B (CHB) in the immune‐tolerant phase.Aims: To investigate the cumulative incidence of phase change and hepatocellular carcinoma (HCC) and independent predictors for phase change in patients with CHB in immune‐tolerant phase.Methods: In total, 946 patients in immune‐tolerant phase, defined as hepatitis B e antigen positivity, HBV‐DNA >20 000 IU/mL and alanine aminotransferase (ALT) ≤40 IU/L, between 1989 and 2017 were enrolled from eight institutes.Results: The mean age of study population (429 men and 517 women) was 36.7 years. The mean ALT and HBV‐DNA levels were 24.6 IU/L and 8.50 log10 IU/mL, respectively. Of the study population, 476 (50.3%) patients remained in immune‐tolerant phase throughout the study period (median: 63.6 months). The cumulative incidence rates of phase change and HCC at 10 years were 70.7% and 1.7%, respectively. Multivariate analyses revealed that HBV‐DNA level >107 IU/mL was associated independently with a reduced risk of phase change (hazard ratio [HR] = 0.734, P = 0.008), whereas a high ALT level, above the cut‐off recommended in the Korean Association for the Study of the Liver guidelines (34 IU/L for men and 30 IU/L for women), was associated independently with a greater risk of phase change (HR = 1.885, P < 0.001).Conclusions: The criterion of HBV‐DNA level > 107 IU/mL may be useful to define immune‐tolerant phase. In addition, an extremely low risk of HCC development was observed in patients with CHB in immune‐tolerant phase.

15 July 2021 in Gut and Liver
Verified
Journal Article
Open access
PDF file
HLHan Ah Lee
Han Ah Lee
JJJoon Young Jung
Joon Young Jung
YLYoung-Sun Lee
Young-Sun Lee
YJYoung Kul Jung
Young Kul Jung
JKJi Hoon Kim
Ji Hoon Kim
YSYeon Seok Seo
Yeon Seok Seo
Han Ah Lee, Joon Young Jung, Young-Sun Lee, Young Kul Jung, Ji Hoon Kim, Hyonggin An, Hyung Joon Yim, Yoon Tae Jeen, Jong Eun Yeon, Kwan Soo Byun, Soon Ho Um, and Yeon Seok Seo. Gut and Liver 2021;15:599-605. https://doi.org/10.5009/gnl20171

30 September 2009 in Gut and Liver
Verified
Journal Article
Open access
PDF file
JHJeong Heo
Jeong Heo
YSYeon Seok Seo
Yeon Seok Seo
HYHyung Joon Yim
Hyung Joon Yim
THTaeho Hahn
Taeho Hahn
SPSang Hoon Park
Sang Hoon Park
SCSe Hyun Cho
Se Hyun Cho
Heo J, et al. Gut Liver. 2009 Sep;3(3):197-204. http://dx.doi.org/10.5009/gnl.2009.3.3.197