Jae Hyun Yoon

Dr. Jae Hyun Yoon

orcid

Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

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

Representative Publications

View All Publications
30 September 2023 in Journal of Liver Cancer
Verified
Journal Article
Open access
PDF file
JYJae Hyun Yoon
Jae Hyun Yoon
SCSung Kyu Choi
Sung Kyu Choi
Although hepatocellular carcinoma (HCC) is associated with a poor prognosis, management of early-stage HCC is often successful with highly efficacious treatment modalities such as liver transplantation, surgical resection, and radiofrequency ablation. However, unfavorable clinical outcomes have been observed under certain circumstances, even after efficient treatment. Factors that predict unsuitable results after treatment include tumor markers, inflammatory markers, imaging findings reflecting tumor biology, specific outcome indicators for each treatment modality, liver functional reserve, and the technical feasibility of the treatment modalities. Various strategies may overcome these challenges, including the application of reinforced treatment indication criteria with predictive markers reflecting tumor biology, compensation for technical issues with up-to-date technologies, modification of treatment modalities, downstaging with locoregional therapies (such as transarterial chemotherapy or radiotherapy), and recently introduced combination immunotherapies. In this review, we discuss the challenges to achieving optimal outcomes in the management of early-stage HCC and suggest strategies to overcome these obstacles.

28 February 2022 in Frontiers in Cardiovascular Medicine
Verified
Journal Article
Open access
HYHye-Su You
Hye-Su You
JYJae Hyun Yoon
Jae Hyun Yoon
SCSung Bum Cho
Sung Bum Cho
YCYoo-Duk Choi
Yoo-Duk Choi
YKYung Hui Kim
Yung Hui Kim
SCSung Kyu Choi
Sung Kyu Choi
Objectives: Amiodarone is widely used to treat arrhythmia. However, amiodarone is known for its severe toxicity to the liver, lungs, and thyroid. Amiodarone causes liver damage ranging from asymptomatic serum aminotransferase elevation to hepatic failure requiring liver transplantation. Although amiodarone toxicity has been reported, its simultaneous multi-organ toxicity is not well-known. Here, we introduce a novel case of multi-systemic amiodarone toxicity involving the liver, lungs, thyroid, and eyes.Case Presentation: A 61-year-old woman visited the emergency room due to general weakness, nausea, visual disturbance, heat intolerance, and a non-productive cough. The patient had been using clopidogrel and amiodarone due to underlying atrial fibrillation. The total level of bilirubin was 0.71 mg/dL, aspartate aminotransferase was 358 U/L, alanine aminotransferase was 177 U/L, and prothrombin time was 27.1 s. Computed tomography showed diffuse increased liver intensity and scattered hyperattenuated nodular consolidations in both lungs. Transthoracic needle lung biopsy revealed fibrinoid interstitial inflammation with atypical change of type II pneumocytes and intra-alveolar foamy macrophages. In addition, the thyroid-stimulating hormone level was <0.008 μIU/mL, and free thyroxine was 4.67 ng/dL. The thyroid scan showed diffuse homogenous intake of technetium-99 m pertechnetate in both thyroid lobes. The ophthalmologic exam detected bilateral symmetrical corneal deposits in a vortex pattern. With these findings, we could diagnose amiodarone-induced hepatic, pulmonary, thyroid, and ophthalmologic toxicity. Liver function was restored after cessation of amiodarone, and thyroid function was normalized with methimazole administration. However, due to aggravated lung consolidations, systemic steroid treatment was administered, and improvement was seen 1 week after, at the follow-up exam. As her symptoms improved, she was discharged with a plan of steroid administration for 3 to 6 months.Conclusions: This case implies the possibility of multi-systemic amiodarone toxicity. Thus, the toxicity of amiodarone to multiple organs must be monitored. Prompt cessation of the drug should be considered upon diagnosis.

1 January 2019 in Yonsei Medical Journal
Verified
Journal Article
Open access
JYJae Hyun Yoon
Jae Hyun Yoon
HKHee Joon Kim
Hee Joon Kim
CJChung Hwan Jun
Chung Hwan Jun
SCSung Bum Cho
Sung Bum Cho
YJYochun Jung
Yochun Jung
SCSung Kyu Choi
Sung Kyu Choi
Hepatic hydrothorax is a complication of decompensated liver cirrhosis that is difficult and complex to manage. Data concerning the optimal treatment method, other than liver transplantation, are limited. This study aimed to compare the clinical features and outcomes of patients treated with various modalities, while focusing on surgical management and pigtail drainage. Forty-one patients diagnosed with refractory hepatic hydrothorax between January 2013 and December 2017 were enrolled. The mean Child-Turcotte-Pugh and model for end stage liver disease scores of the enrolled patients were 10.1 and 19.7, respectively. The patients underwent four modalities: serial thoracentesis (n=11, 26.8%), pigtail drainage (n=16, 39.0%), surgery (n=10, 24.4%), and liver transplantation (n=4, 9.8%); 12-month mortality rate/median survival duration was 18.2%/868 days, 87.5%/79 days, 70%/179 days, and 0%/601.5 days, respectively. Regarding the management of refractory hepatic hydrothorax, surgery group required less frequent needle puncture (23.5 times in pigtail group vs. 9.3 times in surgery group), had a lower occurrence of hepatorenal syndrome (50% vs. 30%), and had a non-inferior cumulative overall survival (402.1 days vs. 221.7 days) compared to pigtail group. On multivariate analysis for poor survival, body mass index 10, and history of severe encephalopathy (grade >2) were associated with poor survival. Serial thoracentesis may be recommended for management of hepatic hydrothorax and surgical management can be a useful option in patients with refractory hepatic hydrothorax, alternative to pigtail drainage.

1 January 2021 in Journal of Korean Medical Science
Verified
Journal Article
Open access
PDF file
JYJae Hyun Yoon
Jae Hyun Yoon
CJChung Hwan Jun
Chung Hwan Jun
JKJeong Han Kim
Jeong Han Kim
EYEileen Yoon
Eileen Yoon
BKByung Seok Kim
Byung Seok Kim
SKSeong Hee Kang
Seong Hee Kang
Yoon JH, et al. J Korean Med Sci. 2021 May;36(21):e145. https://doi.org/10.3346/jkms.2021.36.e145

24 June 2024 in American Journal of Gastroenterology
Verified
Journal Article
Closed access
ECEunae Cho
Eunae Cho
SKSeong-Hun Kim
Seong-Hun Kim
CPChang Hwan Park
Chang Hwan Park
JYJae Hyun Yoon
Jae Hyun Yoon
SLSeung Ok Lee
Seung Ok Lee
HCHyung Ku Chon
Hyung Ku Chon
INTRODUCTION: Aggressive hydration using lactated Ringer's solution prevents postendoscopic retrograde cholangiopancreatography (ERCP) pancreatitis (PEP). Concerns of this strategy are large volume and lengthy hydration. Our study aimed to evaluate the efficacy of tailored aggressive hydration (TAH) for PEP prevention. METHODS: In this prospective, multicenter, double-blinded, randomized trial conducted across 3 tertiary Korean hospitals, patients who underwent ERCP for the first time were randomly assigned (1:1) to the tailored standard hydration (TSH) and TAH groups. The TSH group received 1.5 mL/kg/hr lactated Ringer's solution during and after ERCP, whereas the TAH group was administered a 20 mL/kg bolus post-ERCP and 3 mL/kg/hr during and after the procedure. Both groups were assessed for elevated serum amylase levels and pain 4–6 hours after ERCP. If both were absent, hydration was discontinued. If either was present, hydration was continued at the original rate until 8 hours. The primary end point was PEP development and was analyzed on an intention-to-treat analysis. RESULTS: A total of 344 patients were randomly assigned to treatment groups (171 to the TSH group and 172 to the TAH group). PEP was observed in 9.4% (16/171) in the TSH group and 3.5% (6/172) in the TAH group (relative risk 0.37, 95% confidence interval 0.15–0.93, P = 0.03). No difference was identified between the 2 groups in PEP severity (P = 0.80) and complications related to volume overload (P = 0.32). DISCUSSION: TAH according to the presence of abdominal pain or elevated serum amylase levels at 4–6 hours after ERCP is safe and prevents PEP development.

31 March 2025 in Journal of Liver Cancer
Verified
Journal Article
Open access
PDF file
JAJihyun An
Jihyun An
YCYoung Chang
Young Chang
GCGwang Hyeon Choi
Gwang Hyeon Choi
WSWon Sohn
Won Sohn
JSJeong Eun Song
Jeong Eun Song
BKBo Hyun Kim
Bo Hyun Kim
Backgrounds/Aims: Hepatocellular carcinoma (HCC) is the sixth most common cancer and second leading cause of cancer-related deaths in South Korea. This study evaluated the characteristics of Korean patients newly diagnosed with HCC in 2016-2018.Methods: Data from the Korean Primary Liver Cancer Registry (KPLCR), a representative database of patients newly diagnosed with HCC in South Korea, were analyzed. This study investigated 4,462 patients with HCC registered in the KPLCR in 2016-2018.Results: The median patient age was 63 years (interquartile range, 55-72). 79.7% of patients were male. Hepatitis B infection was the most common underlying liver disease (54.5%). The Barcelona Clinic Liver Cancer (BCLC) staging system classified patients as follows: stage 0 (14.9%), A (28.8%), B (7.5%), C (39.0%), and D (9.8%). The median overall survival was 3.72 years (95% confidence interval, 3.47-4.14), with 1-, 3-, and 5-year overall survival rates of 71.3%, 54.1%, and 44.3%, respectively. In 2016-2018, there was a significant shift toward BCLC stage 0-A and Child-Turcotte-Pugh liver function class A (P<0.05), although survival rates did not differ by diagnosis year. In the treatment group (n=4,389), the most common initial treatments were transarterial therapy (31.7%), surgical resection (24.9%), best supportive care (18.9%), and local ablation therapy (10.5%).Conclusions: Between 2016 and 2018, HCC tended to be diagnosed at earlier stages, with better liver function in later years. However, since approximately half of the patients remained diagnosed at an advanced stage, more rigorous and optimized HCC screening strategies should be implemented.