1.Hemangiomas with the Variable Manifestations on Breast Imaging: Three Case Reports.
Journal of the Korean Society of Medical Ultrasound 2010;29(4):303-307
Benign hemangiomas of the breast have been rarely reported in the clinical literature. The imaging appearance ranges from probably benign to suspicious for malignancy. We report three cases of breast hemangiomas with variable manifestations on mammography, ultrasonography, and magnetic resonance imaging.
Breast
;
Breast Neoplasms
;
Hemangioma
;
Magnetic Resonance Imaging
;
Mammography
3.Role of Radiofrequency Ablation in Patients with Hepatocellular Carcinoma Who Undergo Prior Transarterial Chemoembolization: Long-Term Outcomes and Predictive Factors.
Won SOHN ; Moon Seok CHOI ; Ju Yeon CHO ; Geum Youn GWAK ; Yong Han PAIK ; Joon Hyeok LEE ; Kwang Cheol KOH ; Seung Woon PAIK ; Byung Chul YOO
Gut and Liver 2014;8(5):543-551
BACKGROUND/AIMS: The role of radiofrequency ablation (RFA) remains uncertain in patients with viable hepatocellular carcinoma (HCC) after transarterial chemoembolization (TACE). METHODS: A total of 101 patients (April 2007 to August 2010) underwent RFA for residual or recurrent HCC after TACE. We analyzed their long-term outcomes and predictive factors. RESULTS: The overall survival rates after RFA were 93.1%, 65.4%, and 61.0% at 1, 3, and 5 years, respectively. Predictive factors for favorable overall survival were Child-Pugh class A (hazard ratio [HR], 3.45; p=0.001), serum alpha-fetoprotein (AFP) level <20 ng/mL (HR, 2.90; p=0.02), and recurrent tumors after the last TACE (HR, 3.14; p=0.007). The cumulative recurrence-free survival rate after RFA at 6 months was 50.1%. Predictive factors for early recurrence (within 6 months) were serum AFP level > or =20 ng/mL (HR, 3.02; p<0.001), tumor size > or =30 mm at RFA (HR, 2.90; p=0.005), and nonresponse to the last TACE (HR, 2.13; p=0.013). CONCLUSIONS: Patients with recurrent or residual HCC who undergo prior TACE show a favorable overall survival, although their tumors seem to recur early and frequently. While good liver function, a low serum AFP level, and recurrent tumors were independent predictive factors for a favorable overall survival, poor response to TACE, a high serum AFP level, and large tumors are associated with early recurrence.
Aged
;
Carcinoma, Hepatocellular/*mortality/*therapy
;
*Catheter Ablation
;
Chemoembolization, Therapeutic/mortality
;
Combined Modality Therapy/mortality
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Female
;
Humans
;
Liver Neoplasms/*mortality/*therapy
;
Male
;
Middle Aged
;
Neoplasm Recurrence, Local/mortality
;
Survival Rate
;
Treatment Outcome
;
alpha-Fetoproteins/analysis
4.Standardization and Validation of the Korean Version of Demoralization Scale-II (DS-II-Kr) in Cancer Patients
Min JHON ; Seon-Young KIM ; Jae-Min KIM ; Sung-Wan KIM ; Il-Seon SHIN ; Ju-Yeon LEE ; Jung-Jae LEE ; Sae-Rom GWAK ; David W. KISSANE
Journal of Korean Neuropsychiatric Association 2022;61(2):90-97
Objectives:
Demoralization, which results from the inability to cope, is characterized by hopelessness, helplessness, and loss of the meaning and purpose of life. Although demoralization is prevalent in patients with chronic illness, including cancer, a Korean version of the scale has not been developed and validated. Thus, we translated into Korean and validated a version of the Demoralization Scale-II (DS-II-Kr) for cancer patients.
Methods:
This cross-sectional study recruited cancer patients and survivors who visited a mental health clinic in a cancer hospital. Internal consistency, test-retest reliability, and concurrent validity of DS-II-Kr were assessed. Additionally, the construct validity of two sub-factors was evaluated using confirmatory factor analysis. The optimal DS-II-Kr cut-off point was determined by logistic regression analysis based on the distress cut-off in the Hospital Anxiety-Depression Scale (HADS).
Results:
This study included 105 participants. The mean and standard deviation for total DS-IIKr scores were 11.9 and 7.6, respectively. The scale demonstrated good internal consistency and test-retest reliability. Goodness-of-fit analysis was moderate for the Meaning and Purpose subscale, and a good fit was found for the Distress and Coping Ability subscale. The DS-II-Kr cut-off value based on HADS was 10 (≤10 vs. >10).
Conclusion
The DS-II-Kr is a useful tool for assessing demoralization in clinical and research settings. However, further studies are needed to confirm the optimal DS-II-Kr cut-off score. External validation in other populations is also needed.
5.Effectiveness and Safety of COVID-19 Vaccination During Preconceptional and Preclinical Pregnancy Period: A National Population Study
Eunseon GWAK ; Taemi KIM ; Ju-Young SHIN ; Nam-Kyong CHOI ; Seungbong HAN ; Ji Yeon LEE ; Young June CHOE ; Seung-Ah CHOE
Journal of Korean Medical Science 2023;38(41):e314-
Background:
We aimed to assess the risk of maternal severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and early abortive outcomes after the association between coronavirus disease 2019 (COVID-19) vaccination during the preconceptional period and preclinical pregnancy, which are likely to be inadvertent vaccination.
Methods:
We used data from the Korea Disease Control and Prevention Agency-COVID19-National Health Insurance Service cohort from December 2020 to December 2021. The vaccinated pregnant women were matched to unvaccinated pregnant controls at a 1:4 ratio.The risks of SARS-CoV-2 infection and intensive care unit (ICU) admission within 14 days of infection were analyzed to assess its effectiveness. For safety measures, the adjusted relative risks (aRRs) of early abortive outcomes for the first COVID-19 vaccination during the preconceptional and preclinical periods were calculated considering covariates. We compared the risk of early abortion between mRNA and viral vector vaccines.
Results:
The overall COVID-19 vaccination rates during the preconceptional period and preclinical pregnancy were 3.1% (6,662/215,211) and 2.6% (5,702/215,211), respectively.The cumulative incidence of ICU admission within 14 days of SARS-CoV-2 infection was 6/100,000 in the unvaccinated group, whereas there were no ICU admissions in the vaccinated groups. The risks of early abortive outcomes were not significantly different between the preconceptional vaccination group and the unvaccinated group (aRR, 1.04; 95% confidence interval [CI],0.99–1.10) or between preclinical pregnancy vaccination and their matched controls (1.02; 95% CI, 0.96–1.08). mRNA and viral vector vaccines have shown similar risks for early abortive outcomes and miscarriages.
Conclusion
Our findings have provided compelling evidence regarding the effectiveness and safety of COVID-19 vaccination prior to and during early pregnancy. Further research is required to extend the safety and efficacy profiles of COVID-19 vaccines to pregnant women and their babies.
6.Long-term efficacy of tenofovir disoproxil fumarate therapy after multiple nucleos(t)ide analogue failure in chronic hepatitis B patients.
Hyo Jin KIM ; Ju Yeon CHO ; Yu Jin KIM ; Geum Youn GWAK ; Yong Han PAIK ; Moon Seok CHOI ; Kwang Cheol KOH ; Seung Woon PAIK ; Byung Chul YOO ; Joon Hyeok LEE
The Korean Journal of Internal Medicine 2015;30(1):32-41
BACKGROUND/AIMS: The efficacy of tenofovir disoproxil fumarate (TDF) for the treatment of chronic hepatitis B (CHB) patients following prior treatment failure with multiple nucleos(t)ide analogues (NAs) is not well defined, especially in Asian populations. In this study we investigated the efficacy and safety of TDF rescue therapy in CHB patients after multiple NA treatment failure. METHODS: The study retrospectively analyzed 52 CHB patients who experienced failure with two or more NAs and who were switched to regimens containing TDF. The efficacy and safety assessments included hepatitis B virus (HBV) DNA undetectability, hepatitis B envelop antigen (HBeAg) seroclearance, alanine transaminase (ALT) normalization and changes in serum creatinine and phosphorus levels. RESULTS: The mean HBV DNA level at baseline was 5.4 +/- 1.76 log10 IU/mL. At a median duration of 34.5 months of TDF treatment, the cumulative probabilities of achieving complete virological response (CVR) were 25.0%, 51.8%, 74.2%, and 96.7% at 6, 12, 24, and 48 months, respectively. HBeAg seroclearance occurred in seven of 48 patients (14.6%). ALT levels were normalized in 27 of 31 patients (87.1%) with elevated ALT at baseline. Lower levels of HBV DNA at baseline were significantly associated with increased CVR rates (p < 0.001). However, CVR rates did not differ between TDF monotherapy or combination therapy with other NAs, and were not affected by mutations associated with resistance to NAs. No significant adverse events were observed. CONCLUSIONS: TDF is an efficient and safe rescue therapy for CHB patients after treatment failure with multiple NAs.
Adenine/adverse effects/*analogs & derivatives/therapeutic use
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Adult
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Aged
;
Alanine Transaminase/blood
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Antiviral Agents/adverse effects/*therapeutic use
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Biological Markers/blood
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Creatinine/blood
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DNA, Viral/blood
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Drug Resistance, Viral/genetics
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Drug Substitution
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Female
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Genotype
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Hepatitis B e Antigens/blood
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Hepatitis B virus/*drug effects/genetics/immunology/pathogenicity
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Hepatitis B, Chronic/blood/diagnosis/*drug therapy
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Humans
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Kaplan-Meier Estimate
;
Male
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Middle Aged
;
Mutation
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Phosphorous Acids/adverse effects/*therapeutic use
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Phosphorus/blood
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Retrospective Studies
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Time Factors
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Treatment Failure
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Viral Load
;
Young Adult
7.Intrahepatic bile duct adenoma in a patient with chronic hepatitis B accompanied by elevation of alpha-fetoprotein.
Jem Ma AHN ; Yong Han PAIK ; Jun Hee LEE ; Ju Yeon CHO ; Won SOHN ; Geum Youn GWAK ; Moon Seok CHOI ; Joon Hyeok LEE ; Kwang Cheol KOH ; Seung Woon PAIK ; Byung Chul YOO
Clinical and Molecular Hepatology 2015;21(4):393-397
A 51-year-old male patient with chronic hepatitis B was referred to our hospital due to a 1-cm liver nodule on ultrasonography. Alpha-fetoprotein (AFP) was slightly elevated. The nodule showed prolonged enhancement on dynamic liver magnetic resonance imaging and appeared as a hyperintensity on both diffusion-weighted and T2-weighted imaging. The nodule was followed up because it was small and typical findings of hepatocellular carcinoma (HCC) were not observed in the dynamic imaging investigations. However, liver contrast-enhanced ultrasonography performed 1 month later showed enhancement during the arterial phase and definite washout during the delayed phase. Also, AFP had increased to over 200 ng/mL even though AST and ALT were decreased after administering an antiviral agent. He was presumptively diagnosed as HCC and underwent liver segmentectomy. Microscopy findings of the specimen indicated bile duct adenoma. After resection, the follow-up AFP had decreased to within the normal range. This patient represents a case of bile duct adenoma with AFP elevation mimicking HCC on contrast-enhanced ultrasonography.
Bile Duct Neoplasms/*complications/*diagnosis/pathology
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*Bile Ducts, Intrahepatic
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Hepatitis B, Chronic/*complications/*diagnosis/pathology
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Humans
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Liver/pathology/ultrasonography
;
Magnetic Resonance Imaging
;
Male
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Middle Aged
;
Tomography, X-Ray Computed
;
alpha-Fetoproteins/*metabolism
8.Clinical Image Evaluation of Film Mammograms in Korea: Comparison with the ACR Standard.
Yeon Joo GWAK ; Hye Jung KIM ; Jin Young KWAK ; Eun Ju SON ; Kyung Hee KO ; Jin Hwa LEE ; Hyo Soon LIM ; You Jin LEE ; Ji Won PARK ; Kyung Min SHIN ; Yun Jin JANG
Korean Journal of Radiology 2013;14(5):701-710
OBJECTIVE: The goal of this study is to compare the overall quality of film mammograms taken according to the Korean standards with the American College of Radiology (ACR) standard for clinical image evaluation and to identify means of improving mammography quality in Korea. MATERIALS AND METHODS: Four hundred and sixty eight sets of film mammograms were evaluated with respect to the Korean and ACR standards for clinical image evaluation. The pass and failure rates of mammograms were compared by medical facility types. Average scores in each category of the two standards were evaluated. Receiver operating characteristic curve analysis was used to identify an optimal Korean standard pass mark by taking the ACR standard as the reference standard. RESULTS: 93.6% (438/468) of mammograms passed the Korean standard, whereas only 80.1% (375/468) passed the ACR standard (p < 0.001). Non-radiologic private clinics had the lowest pass rate (88.1%: Korean standard, 71.8%: ACR standard) and the lowest total score (76.0) by the Korean standard. Average scores of positioning were lowest (19.3/29 by the Korean standard and 3.7/5 by the ACR standard). A cutoff score of 77.0 for the Korean standard was found to correspond to a pass level when the ACR standard was applied. CONCLUSION: We suggest that tighter regulations, such as, raising the Korean pass mark, subtracting more for severe deficiencies, or considering a very low scores in even a single category as failure, are needed to improve the quality of mammography in Korea.
Accreditation/*standards
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Female
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Humans
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Mammography/*standards
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*Quality Improvement
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ROC Curve
;
Republic of Korea
;
Retrospective Studies
9.Long-term real-world entecavir therapy in treatment-naïve hepatitis B patients: base-line hepatitis B virus DNA and hepatitis B surface antigen levels predict virologic response.
Ju Yeon CHO ; Won SOHN ; Dong Hyun SINN ; Geum Youn GWAK ; Yong Han PAIK ; Moon Seok CHOI ; Kwang Cheol KOH ; Seung Woon PAIK ; Byung Chul YOO ; Joon Hyeok LEE
The Korean Journal of Internal Medicine 2017;32(4):636-646
BACKGROUND/AIMS: Entecavir is a potent nucleoside analogue with high efficacy and barrier for resistance. We aimed to investigate the long-term efficacy and viral resistance rate of entecavir and explore the factors associated with virologic response, including quantitative hepatitis B surface antigen (qHBsAg) levels. METHODS: One thousand and nine treatment-naïve chronic hepatitis B (CHB) patients were evaluated for cumulative rates of virologic response, biochemical response, and entecavir mutations. The role of baseline qHBsAg for virologic response was assessed in 271 patients with qHBsAg prior to entecavir treatment. RESULTS: The median duration of entecavir treatment was 26.5 months. The cumulative rate of virologic response at years 1, 3, and 5 were 79.0%, 95.6%, and 99.4%, respectively. The cumulative rate of entecavir resistance was 1.0% and 2.1% in years 3 and 5. Multivariate analysis identified baseline hepatitis B e antigen (HBeAg) negative status (p < 0.001) and lower hepatitis B virus (HBV) DNA (p < 0.001) as predictors of virologic response. Lower qHBsAg was an independent predictor of virologic response in patients with baseline qHBsAg. There were no serious adverse events during treatment. CONCLUSIONS: Long-term entecavir treatment of nucleos(t)ide-naïve CHB patients was associated with an excellent virologic response and a low rate of entecavir-resistant mutations at 5 years. Baseline HBV DNA load, qHBsAg levels, and HBeAg status were predictors of virologic response during entecavir treatment.
DNA
;
Hepatitis B e Antigens
;
Hepatitis B Surface Antigens*
;
Hepatitis B virus*
;
Hepatitis B*
;
Hepatitis B, Chronic
;
Hepatitis*
;
Humans
;
Multivariate Analysis
10.Clinical significance and predictive factors of early massive recurrence after radiofrequency ablation in patients with a single small hepatocellular carcinoma.
Ju Yeon CHO ; Moon Seok CHOI ; Gil Sun LEE ; Won SOHN ; Jemma AHN ; Dong Hyun SINN ; Geum Youn GWAK ; Yong Han PAIK ; Joon Hyeok LEE ; Kwang Cheol KOH ; Seung Woon PAIK
Clinical and Molecular Hepatology 2016;22(4):477-486
BACKGROUND/AIMS: Radiofrequency ablation (RFA) is one of the most frequently applied curative treatments in patients with a single small hepatocellular carcinoma (HCC). However, the clinical significance of and risk factors for early massive recurrence after RFA—a dreadful event limiting further curative treatment—have not been fully evaluated. METHODS: In total, 438 patients with a single HCC of size ≤3 cm who underwent percutaneous RFA as an initial treatment between 2006 and 2009 were included. Baseline patient characteristics, overall survival, predictive factors, and recurrence after RFA were evaluated. In addition, the incidence, impact on survival, and predictive factors of early massive recurrence, and initial recurrence beyond the Milan criteria within 2 years were also investigated. RESULTS: During the median follow-up of 68.4 months, recurrent HCC was confirmed in 302 (68.9%) patients, with early massive recurrence in 27 patients (6.2%). The 1-, 3-, and 5-year overall survival rates were 95.4%, 84.7%, and 81.8%, respectively, in patients with no recurrence, 99.6%, 86.4%, and 70.1% in patients with recurrence within the Milan criteria or late recurrence, and 92.6%, 46.5%, and 0.05% in patients with early massive recurrence. Multivariable analysis identified older age, Child-Pugh score B or C, and early massive recurrence as predictive of poor overall survival. A tumor size of ≥2 cm and tumor location adjacent to the colon were independent risk factors predictive of early massive recurrence. CONCLUSIONS: Early massive recurrence is independently predictive of poor overall survival after RFA in patients with a single small HCC. Tumors sized ≥2 cm and located adjacent to the colon appear to be independent risk factors for early massive recurrence.
Aged
;
Carcinoma, Hepatocellular/mortality/pathology/*surgery
;
Catheter Ablation
;
Female
;
Hepatitis B/complications
;
Hepatitis C/complications
;
Humans
;
Liver Neoplasms/mortality/pathology/*surgery
;
Male
;
Middle Aged
;
Neoplasm Recurrence, Local
;
Neoplasm Staging
;
Retrospective Studies
;
Risk Factors
;
Survival Rate
;
Treatment Outcome