1.Clinical and Radiologic Predictors of Response to Atezolizumab-Bevacizumab in Advanced Hepatocellular Carcinoma
Se Jin CHOI ; Sung Won CHUNG ; Jonggi CHOI ; Kang Mo KIM ; Hyung-Don KIM ; Changhoon YOO ; Baek-Yeol RYOO ; Seung Soo LEE ; Won-Mook CHOI ; Sang Hyun CHOI
Cancer Research and Treatment 2024;56(4):1219-1230
Purpose:
This study aimed to identify clinical and radiologic characteristics that could predict response to atezolizumab-bevacizumab combination therapy in patients with advanced hepatocellular carcinoma (HCC).
Materials and Methods:
This single-center retrospective study included 108 advanced HCC patients with intrahepatic lesions who were treated with atezolizumab-bevacizumab. Two radiologists independently analyzed imaging characteristics of the index tumor on pretreatment computed tomography. Predictive factors associated with progressive disease (PD) at the best response based on Response Evaluation Criteria in Solid Tumors, ver. 1.1 were evaluated using logistic regression analysis. Progression-free survival (PFS) was estimated by the Kaplan-Meier method and compared with the log-rank test.
Results:
Of 108 patients with a median PFS of 15 weeks, 40 (37.0%) had PD during treatment. Factors associated with PD included the presence of extrahepatic metastases (adjusted odds ratio [aOR], 4.13; 95% confidence interval [CI], 1.19 to 14.35; p=0.03), the infiltrative appearance of the tumor (aOR, 3.07; 95% CI, 1.05 to 8.93; p=0.04), and the absence of arterial-phase hyperenhancement (APHE) (aOR, 6.34; 95% CI, 2.18 to 18.47; p < 0.001). Patients with two or more of these factors had a PD of 66.7% and a median PFS of 8 weeks, indicating a significantly worse outcome compared to the patients with one or no of these factors.
Conclusion
In patients with advanced HCC treated with atezolizumab-bevacizumab treatment, the absence of APHE, infiltrative appearance of the intrahepatic tumor, and presence of extrahepatic metastases were associated with poor response and survival. Evaluation of early response may be necessary in patients with these factors.
2.Successful Transcatheter Arterial Embolization of Abdominal Wall Hematoma from the Left Deep Circumflex Iliac Artery after Abdominal Paracentesis in a Patient with Liver Cirrhosis: Case Report and Literature Review
Young Eun SEO ; Chae June LIM ; Jae Woong LIM ; Je Seong KIM ; Hyung Hoon OH ; Keon Young MA ; Ga Ram YOU ; Chan Mook IM ; Byung Chan LEE ; Young Eun JOO
The Korean Journal of Gastroenterology 2024;83(4):167-171
The occurrence of an abdominal wall hematoma caused by abdominal paracentesis in patients with liver cirrhosis is rare. This paper presents a case of an abdominal wall hematoma caused by abdominal paracentesis in a 67-year-old woman with liver cirrhosis with a review of the relevant literature. Two days prior, the patient underwent abdominal paracentesis for symptom relief for refractory ascites at a local clinic. Upon admission, a physical examination revealed purpuric patches with swelling and mild tenderness in the left lower quadrant of the abdominal wall. Abdominal computed tomography revealed advanced liver cirrhosis with splenomegaly, tortuous dilatation of the para-umbilical vein, a large volume of ascites, and a large acute hematoma at the left lower quadrant of the abdominal wall. An external iliac artery angiogram showed the extravasation of contrast media from the left deep circumflex iliac artery. Embolization of the target arterial branches using N-butyl-2-cyanoacrylate was then performed, and the bleeding was stopped. The final diagnosis was an abdominal wall hematoma from the left deep circumflex iliac artery after abdominal paracentesis in a patient with liver cirrhosis.
3.The Effects of Continuation-Maintenance Electroconvulsive Therapy on Reducing Hospital Re-Admissions in Patients with Treatment-Resistant Schizophrenia.
Kyung Mook CHOI ; Soo Hee CHOI ; Jung Kyung HONG ; Mi Hyun LEE ; Joon Hyung JUNG ; Sang Hoon OH ; Dong Chung JUNG ; Sung Nyun KIM
Clinical Psychopharmacology and Neuroscience 2018;16(3):339-342
OBJECTIVE: Continuation-maintenance electroconvulsive therapy (C/M-ECT) is used to prevent relapse or recurrence in patients with severe mental illnesses. We aimed to investigate the effect of C/M-ECT on reducing hospital re-admissions in patients with treatment-resistant schizophrenia. METHODS: We applied a mirror-image design by retrospectively examining re-hospitalization rates of 18 patients with schizophrenia spectrum disorders. We compared the numbers of psychiatric admissions during the actual period over which C/M-ECT was administered with the same period prior to the beginning of C/M-ECT. RESULTS: The number of psychiatric admissions was reduced significantly during C/M-ECT (0.33±0.77) compared with that of the same period prior to C/M-ECT (2.67±1.33) (Wilcoxon signed rank Z=−3.663; p < 0.001). CONCLUSION: This finding shows that C/M-ECT augmentation could successfully reduce the re-hospitalization rates in patients with treatment-resistant schizophrenia.
Electroconvulsive Therapy*
;
Hospitalization
;
Humans
;
Recurrence
;
Retrospective Studies
;
Schizophrenia*
4.Successful transcatheter closure of an inferior sinus venosus atrial septal defect.
Hyung Duk KIM ; Moon Sung KIM ; Kyung Jin YUN ; Sang Mook BAE ; Sung Ho HER ; Jae Hwan LEE
The Korean Journal of Internal Medicine 2016;31(1):176-178
No abstract available.
Aged
;
*Cardiac Catheterization/instrumentation
;
Computed Tomography Angiography
;
Coronary Angiography/methods
;
Echocardiography, Doppler, Color
;
Echocardiography, Transesophageal
;
Female
;
Heart Septal Defects, Atrial/diagnostic imaging/*therapy
;
Humans
;
Septal Occluder Device
;
Treatment Outcome
5.Expression of T-Lymphocyte Markers in Human Epidermal Growth Factor Receptor 2-Positive Breast Cancer.
Changro LEE ; Seho PARK ; Joo Heung KIM ; Sung Mook LIM ; Hyung Seok PARK ; Seung Il KIM ; Byeong Woo PARK
Journal of Breast Cancer 2016;19(4):385-393
PURPOSE: The present study aimed to examine the clinical implications of CD4, CD8, and FOXP3 expression on the prognosis of human epidermal growth factor receptor 2 (HER2)-positive breast cancer using a web-based database, and to compare the immunohistochemical expression of T-lymphocyte markers using primary and metastatic HER2-positive tumor tissues before and after HER2-targeted therapy. METHODS: Using the cBioPortal for Cancer Genomics and Kaplan-Meier plotter, the mRNA expression, association between T-lymphocyte markers, and survival in HER2-positive cancers were investigated according to various cutoff levels. Immunohistochemistry analysis was performed using paired primary and metastatic tissues of 29 HER2-positive tumors treated with systemic chemotherapy and HER2-directed therapy. RESULTS: HER2 mRNA was mutually exclusive of T-lymphocyte markers, and a significant correlation between T-cell markers was observed in the cBioPortal for Cancer Genomics. According to analysis of the Kaplan-Meier plotter, the impact of T-lymphocyte marker expression on survival was statistically insignificant in clinical HER2-positive tumors, irrespective of the cutoff levels. However, in the intrinsic HER2-positive subtype, the individual analyses of T-cell markers except for FOXP3 and combined analysis showed significantly favorable survival irrespective of cutoff points. Although the small clinical sample size made it difficult to show the statistical relevance of immunohistochemistry findings, good responses to neoadjuvant treatments might be associated with positive expression of combined T-lymphocyte markers, and approximately half of the samples showed discordance of combined markers between baseline and resistant tumors. CONCLUSION: T-lymphocyte markers could be favorable prognostic factors in HER2-positive breast cancers; however, a consensus on patient section criteria, detection methods, and cutoff value could not be reached. The resistance to HER2-directed therapy might involve different and personalized mechanisms, and further research is required to understand the association between immune function and HER2 expression and to overcome the resistance mechanisms to HER2-targeted therapies.
Biomarkers
;
Breast
;
Breast Neoplasms
;
Consensus
;
Drug Resistance
;
Drug Therapy
;
Epidermal Growth Factor*
;
Genomics
;
Humans*
;
Immunohistochemistry
;
Neoadjuvant Therapy
;
Prognosis
;
Receptor, Epidermal Growth Factor*
;
RNA, Messenger
;
Sample Size
;
T-Lymphocytes*
6.Anti-Helicobacter pylori Compounds from Maackia amurensis.
Woo Sung PARK ; Ji Yeong BAE ; Hye Jin KIM ; Min Gab KIM ; Woo Kon LEE ; Hyung Lyun KANG ; Seung Chul BAIK ; Kyung Mook LIM ; Mi Kyeong LEE ; Mi Jeong AHN
Natural Product Sciences 2015;21(1):49-53
Eight isoflavonoid compounds were isolated from the EtOAc fraction of Maackia amurensis which had shown the highest anti-Helicobacter pylori activity among the fractions, using medium pressure liquid chromatography and recrystallization. Based on the spectroscopic data including 1H-NMR, 13C-NMR, HMBC and MS data, the chemical structures of the isolates were determined to be (-)-medicarpin (1), afromosin (2), formononetin (3), tectorigenin (4), prunetin (5), wistin (6), tectoridin (7) and ononin (8). Anti-H. pylori activity of each compound was evaluated with broth dilution assay. As a result, (-)-medicarpin (1), tectorigenin (4) and wistin (6) showed anti-H. pylori activity. (-)-Medicarpin (1) exhibited the most potent growth inhibitory activity against H. pylori with the minimal inhibitory concentration (MIC)90 of 25 microM, and tectorigenin (4) with MIC90 of 100 microM ranked the second. This is the first study to show the anti-H. pylori activity of M. amurensis, and it is suggested that the stem bark of M. amurensis or the EtOAc fraction or the isolated compounds can be a new natural source for the treatment of H. pylori infection.
Chromatography, Liquid
;
Maackia*
7.A Systematic Review of Interspinous Dynamic Stabilization.
Seon Heui LEE ; Aram SEOL ; Tae Young CHO ; Soo Young KIM ; Dong Jun KIM ; Hyung Mook LIM
Clinics in Orthopedic Surgery 2015;7(3):323-329
BACKGROUND: A systematic literature review of interspinous dynamic stabilization, including DIAM, Wallis, Coflex, and X-STOP, was conducted to assess its safety and efficacy. METHODS: The search was done in Korean and English, by using eight domestic databases which included KoreaMed and international databases, such as Ovid Medline, Embase, and the Cochrane Library. A total of 306 articles were identified, but the animal studies, preclinical studies, and studies that reported the same results were excluded. As a result, a total of 286 articles were excluded and the remaining 20 were included in the final assessment. Two assessors independently extracted data from these articles using predetermined selection criteria. Qualities of the articles included were assessed using Scottish Intercollegiate Guidelines Network (SIGN). RESULTS: The complication rate of interspinous dynamic stabilization has been reported to be 0% to 32.3% in 3- to 41-month follow-up studies. The complication rate of combined interspinous dynamic stabilization and decompression treatment (32.3%) was greater than that of decompression alone (6.5%), but no complication that significantly affected treatment results was found. Interspinous dynamic stabilization produced slightly better clinical outcomes than conservative treatments for spinal stenosis. Good outcomes were also obtained in single-group studies. No significant difference in treatment outcomes was found, and the studies compared interspinous dynamic stabilization with decompression or fusion alone. CONCLUSIONS: No particular problem was found regarding the safety of the technique. Its clinical outcomes were similar to those of conventional techniques, and no additional clinical advantage could be attributed to interspinous dynamic stabilization. However, few studies have been conducted on the long-term efficacy of interspinous dynamic stabilization. Thus, the authors suggest further clinical studies be conducted to validate the theoretical advantages and clinical efficacy of this technique.
Decompression, Surgical
;
Humans
;
Postoperative Complications
;
*Spinal Fusion/adverse effects/methods
;
Spinal Stenosis/physiopathology/surgery
8.Glomus Tumor Causing Anterior Thigh Pain: A Case Report.
Sang Young SO ; Byng Mook KIM ; Sun Yeul LEE ; Young Kwon KO ; Yong Sup SHIN ; Won Hyung LEE
The Korean Journal of Pain 2014;27(2):174-177
Glomus tumors are a rare, benign neoplasm and 75% exist in the subungual region. Extradigital glomus tumors are much more difficult to diagnose because of their atypical location and symptoms. Furthermore, if their symptoms are similar to neuropathic pain, the patient can suffer from misdirected treatment due to misdiagnosis. It is essential to perform careful evaluation of the lesion itself in order to reduce misdiagnosis. Ultrasonography is a useful, non-invasive method that can be easily performed in the pain clinic for local evaluation and diagnosis. We report a case of misdiagnosed glomus tumor in the thigh which was properly diagnosed after ultrasonography.
Diagnosis
;
Diagnostic Errors
;
Glomus Tumor*
;
Humans
;
Neuralgia
;
Pain Clinics
;
Thigh*
;
Ultrasonography
9.The Prognostic Implication of Metabolic Syndrome in Patients with Heart Failure.
Hyun Ju YOON ; Youngkeun AHN ; Kye Hun KIM ; Jong Chun PARK ; Dong Ju CHOI ; Seongwoo HAN ; Eun Seok JEON ; Myung Chan CHO ; Jae Joong KIM ; Byung Su YOO ; Mi Seung SHIN ; In Whan SEONG ; Seok Min KANG ; Yung Jo KIM ; Hyung Seop KIM ; Shung Chull CHAE ; Byung Hee OH ; Myung Mook LEE ; Kyu Hyung RYU
Korean Circulation Journal 2013;43(2):87-92
BACKGROUND AND OBJECTIVES: Metabolic syndrome (MetS) increases the risk of heart failure (HF). The purpose of this study was to identify the prevalence of MetS in patients with HF and determine the syndrome's association with HF in clinical and laboratory parameters. SUBJECTS AND METHODS: A total of 3200 HF patients (67.6+/-14.5 years) enrolled in a nationwide prospective Korea HF Registry between Jan. 2005 and Oct. 2009. Patients were divided into two groups according to the presence or absence of MetS at admission: group I (presence, n=1141) and group II (absence, n=2059). RESULTS: The prevalence of MetS was 35.7% across all subjects and was higher in females (56.0%). The levels of white blood cells, platelets, creatinine, glucose, and cholesterol were significantly higher in group I than in group II. Left ventricular dimension and volume was smaller and ejection fraction was higher in group I than in group II. An ischemic cause of HF was more frequent in group I. The rates of valvular and idiopathic cause were lower in group I than in group II. The rate of mortality was lower in group I than in group II (4.9% vs. 8.3%, p<0.001). CONCLUSION: Despite the increased cardiovascular risks in MetS, MetS was found to be associated with decreased mortality in HF.
Blood Platelets
;
Cholesterol
;
Creatinine
;
Female
;
Glucose
;
Heart
;
Heart Failure
;
Humans
;
Korea
;
Leukocytes
;
Prevalence
;
Prospective Studies
10.Airway Obstruction and Flattening of Arterial Pressure Wave during Whole Lung Lavage: A Case Report.
Hyun Jung KOH ; Sung Jin HONG ; Ho Kyung SONG ; Ji Young LEE ; Jin Young CHON ; Ho Sik MOON ; Yu Mi JU ; Hyung Mook LEE
The Korean Journal of Critical Care Medicine 2013;28(2):133-136
Whole lung lavage (WLL) is a challenging procedure; because lavage fluid may perturb the respiratory and hemodynamic systems. We observed severe airway obstruction and flattening arterial pressure wave during WLL for treatment of pulmonary alveolar proteinosis. The aim of this case report is to discuss the anesthetic requirement in order to prevent bronchospasm during WLL. Furthermore, we discuss the potential of lavage fluid to cause airway obstruction and decrease cardiac outflow through the mass effect.
Airway Obstruction
;
Arterial Pressure
;
Bronchial Spasm
;
Bronchoalveolar Lavage
;
Hemodynamics
;
Lung
;
Pulmonary Alveolar Proteinosis
;
Therapeutic Irrigation

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