1.Extrauterine Adenomyoma of the Liver Mimicking a Hepatic Adenoma: A Case Report
Young Joo WON ; Ji Young WOO ; Jieun BYUN ; Min Eui HONG
Journal of the Korean Radiological Society 2020;81(1):197-202
Extrauterine adenomyoma of the liver is extremely rare. Only a few cases have been reported, and these reports have focused mainly on histopathology. Herein, we report the specific imaging findings of extrauterine adenomyoma of the liver in a 43-year-old woman with epigastric pain, which was initially diagnosed as a hepatic adenoma. CT and MRI revealed a solid and cystic mass with hemorrhagic foci and weak persistent enhancement, located in the subcapsular region of the right hepatic lobe.
2.Clinical Characteristics of Post-traumatic Seizures in Children.
Jon Soo KIM ; Hye Won RYU ; Sung Hwan BYUN ; Hunmin KIM ; Byung Chan LIM ; Jong Hee CHAE ; Jieun CHOI ; Ki Joong KIM ; Yong Seung HWANG ; Hee HWANG
Journal of the Korean Child Neurology Society 2012;20(4):228-233
PURPOSE: Post-traumatic seizures (PTS) are well-recognized complications from head injuries and children are particularly more vulnerable to them. The aim of this study was to investigate the clinical characteristics of PTS in children and the findings of several diagnostic tools and to determine the role of prophylactic anticonvulsants. METHODS: We retrospectively reviewed the medical records of patient under 18 years of age who presented with seizures after traumatic brain injuries. Data analyzed included patient's demographics, clinical presentations, radiological and electroencephalographic findings, management and outcomes. RESULTS: Thirty one patients with PTS were included in the study and consisted of 13 males and 18 females. A mean age of the accident was 3.2 years (4 months-6.8 years) and a mean duration of follow-up was 26.0 months (12 months-54 months). Twenty one patients (67.7%) developed seizures within 24 hours after injury. Focal radiological findings were observed in 83.8% and described as subdural or epidural hematoma (25.8%), intraparenchymal hemorrhage (19.3%) and intracerebral parenchymal lesions (51.6%). Electroecephalographic findings included background abnormalities in 32.2% and interictal epileptiform discharges in 45.1%. All patients were treated with anticonvulsants for a certain period of time and a mean duration of treatment was 12.5 weeks (4-40 weeks). Eight patients (25.8%) developed subsequent seizures during follow-up period and 2 patients (6.5%) were diagnosed afterward with post-traumatic epilepsy. CONCLUSION: PTS generally take a benign clinical course, but subsequent seizures including epileptic seizures can occur in minor proportion. In these cases, radiological and electroencephalographic findings are helpful in prediction of clinical course of PTS.
Anticonvulsants
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Brain Injuries
;
Child
;
Craniocerebral Trauma
;
Demography
;
Epilepsy
;
Epilepsy, Post-Traumatic
;
Female
;
Follow-Up Studies
;
Hematoma
;
Hemorrhage
;
Humans
;
Male
;
Medical Records
;
Retrospective Studies
;
Seizures
3.Development and Validation of a Simple Index Based on Non-Enhanced CT and Clinical Factors for Prediction of Non-Alcoholic Fatty Liver Disease
Yura AHN ; Sung Cheol YUN ; Seung Soo LEE ; Jung Hee SON ; Sora JO ; Jieun BYUN ; Yu Sub SUNG ; Ho Sung KIM ; Eun Sil YU
Korean Journal of Radiology 2020;21(4):413-421
OBJECTIVE: A widely applicable, non-invasive screening method for non-alcoholic fatty liver disease (NAFLD) is needed. We aimed to develop and validate an index combining computed tomography (CT) and routine clinical data for screening for NAFLD in a large cohort of adults with pathologically proven NAFLD.MATERIALS AND METHODS: This retrospective study included 2218 living liver donors who had undergone liver biopsy and CT within a span of 3 days. Donors were randomized 2:1 into development and test cohorts. CT(L-S) was measured by subtracting splenic attenuation from hepatic attenuation on non-enhanced CT. Multivariable logistic regression analysis of the development cohort was utilized to develop a clinical-CT index predicting pathologically proven NAFLD. The diagnostic performance was evaluated by analyzing the areas under the receiver operating characteristic curve (AUC). The cutoffs for the clinical-CT index were determined for 90% sensitivity and 90% specificity in the development cohort, and their diagnostic performance was evaluated in the test cohort.RESULTS: The clinical-CT index included CT(L-S), body mass index, and aspartate transaminase and triglyceride concentrations. In the test cohort, the clinical-CT index (AUC, 0.81) outperformed CT(L-S) (0.74; p < 0.001) and clinical indices (0.73–0.75; p < 0.001) in diagnosing NAFLD. A cutoff of ≥ 46 had a sensitivity of 89% and a specificity of 41%, whereas a cutoff of ≥ 56.5 had a sensitivity of 57% and a specificity of 89%.CONCLUSION: The clinical-CT index is more accurate than CT(L-S) and clinical indices alone for the diagnosis of NAFLD and may be clinically useful in screening for NAFLD.
4.Effectiveness and Tolerability of Fosphenytoin for Pediatric Status Epilepticus.
Won Gi HONG ; Il Han YOO ; Jon Soo KIM ; Hye Won RYU ; Sung Hwan BYUN ; Hunmin KIM ; Byung Chan LIM ; Jong Hee CHAE ; Jieun CHOI ; Ki Joong KIM ; Yong Seung HWANG ; Hee HWANG
Journal of the Korean Child Neurology Society 2013;21(1):1-6
PURPOSE: The study was aimed to investigate the effectiveness and tolerability of intravenous fosphenytoin (fPHT) in the treatment of pediatric status epilepticus (SE). METHODS: Medical-records of patients who received intravenous (IV) fPHT for the treatment of SE were retrospectively reviewed and their clinical data were analyzed regarding age, gender, seizure types, underlying neurologic status, use of other anticonvulsants, loading dose, response and adverse events of IV fPHT. RESULTS: Twenty patients (12 boys and 8 girls) were included in the study. The mean age at administration of IV fPHT was 3.98 years (range 0-18.6 years). Of the 20 patients, 15 patients had no underlying neurological conditions, but five patients were on anticonvulsants. IV fPHT terminated the seizures in 15 of the 20 patients (75%). No adverse events occurred during or after the infusions. CONCLUSION: This study demonstrated that IV fPHT was as effective as phenytoin and was well-tolerated in the treatment of pediatric SE. IV fPHT can be considered as a substitute for phenytoin in the management of pediatric SE.
Anticonvulsants
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Humans
;
Phenytoin
;
Retrospective Studies
;
Seizures
;
Status Epilepticus
5.Efficacy and Tolerability of Rufinamide for Intractable Generalized Epilepsies.
Il Han YOO ; Won Gi HONG ; Jon Soo KIM ; Hye Won RYU ; Sung Hwan BYUN ; Hunmin KIM ; Byung Chan LIM ; Jong Hee CHAE ; Jieun CHOI ; Ki Joong KIM ; Yong Seung HWANG ; Hee HWANG
Journal of the Korean Child Neurology Society 2012;20(3):164-169
PURPOSE: The purpose of the study was to evaluate the efficacy and safety of rufinamide for intractable generalized epilepsies. METHODS: Eighteen patients with intractable generalized epilepsies were included in the study. Their medical records were retrospectively reviewed. Rufinamide was administered as an add-on treatment for intractable epilepsies. The initial administered dose was 10 mg/kg/day, which was subsequently titrated up to 30-50 mg/kg/day. The effectiveness was assessed by comparing the frequency of seizures after the treatment. The difference in number of seizures during 4 weeks was compared before and after reaching the final dose. RESULTS: The study population consisted of 13 males and 5 females (mean age 13.6+/-6.2 years, range 3.3-29.2 years). The responder rate (> or =50% in seizure frequency) was 39% and the seizure free rate was 11%. Retention rate was 44% and the reasons for withdrawal was adverse events (6/18 patients, 33%), aggravation of seizures (4/18 patients, 22%), and ineffectiveness (2/18 patients, 11%). Adverse events included hyperactivity, somnolence, ataxia and polyhidrosis. Adverse events and seizure aggravation occurred even at the starting dose of rufinamide treatment. CONCLUSION: Rufinamide can be used as an efficacious and safe adjunctive anticonvulsant for patients with intractable generalized epilepsy.
Ataxia
;
Epilepsy
;
Epilepsy, Generalized
;
Female
;
Humans
;
Male
;
Medical Records
;
Retention (Psychology)
;
Retrospective Studies
;
Seizures
;
Triazoles
6.Real-World Clinical Data of Palbociclib in Asian Metastatic Breast Cancer Patients: Experiences from Eight Institutions
Jieun LEE ; Hyung Soon PARK ; Hye Sung WON ; Ji Hyun YANG ; Hee Yeon LEE ; In Sook WOO ; Kabsoo SHIN ; Ji Hyung HONG ; Young Joon YANG ; Sang Hoon CHUN ; Jae Ho BYUN
Cancer Research and Treatment 2021;53(2):409-423
Purpose:
Use of cyclin-dependent kinase 4/6 inhibitors improved survival outcome of hormone receptor (HR) positive metastatic breast cancer (MBC) patients, including Asian population. However, Asian real-world data of palbociclib is limited. We analyzed the real-world clinical practice patterns and outcome in HR-positive, MBC Asian patients treated with palbociclib.
Materials and Methods:
Between April 2017 to November 2019, 169 HR-positive, human epidermal growth factor-2–negative MBC patients treated with letrozole or fulvestrant plus palbocilib were enrolled from eight institutions. Survival outcome (progression-free survival [PFS]), treatment response and toxicity profiles were analyzed.
Results:
Median age of letrozole plus palbociclib (145 patients, 85.8%) and fulvestrant plus palbociclib (24 patients, 14.2%) was 58 and 53.5 years, with median follow-up duration of 14.63 months (range 0.2 to 33.9 months). Median PFS (mPFS) of letrozole plus palbociclib and fulvestrant plus palbociclib was 25.6 (95% confidence interval [CI], 19.1 to not reached) and 6.37 months (95% CI, 5.33 to not reached), comparable to previous phase 3 trials. In letrozole plus palbociclib arm, luminal A (hazard ratio, 2.86; 95% CI, 1.20 to 6.80; p=0.017) and patients with good performance (Eastern Cooperative Oncology Group 0-1 [hazard ratio, 3.68; 95% CI, 1.70 to 7.96]) showed better mPFS. In fulvestrant plus palbociclib group, chemotherapy naïve patients showed better mPFS (hazard ratio, 12.51, 95% CI, 1.59 to 99.17; p=0.017). The most common grade 3 or 4 adverse event was neutropenia (letrozole 86.3%, fulvestrant 88.3%).
Conclusion
To our knowledge, this is the first real-world data of palbociclib reported in Asia. Palbociclib showed comparable benefit to previous phase 3 trials in Asian patients during daily clinical practice.
7.Real-World Clinical Data of Palbociclib in Asian Metastatic Breast Cancer Patients: Experiences from Eight Institutions
Jieun LEE ; Hyung Soon PARK ; Hye Sung WON ; Ji Hyun YANG ; Hee Yeon LEE ; In Sook WOO ; Kabsoo SHIN ; Ji Hyung HONG ; Young Joon YANG ; Sang Hoon CHUN ; Jae Ho BYUN
Cancer Research and Treatment 2021;53(2):409-423
Purpose:
Use of cyclin-dependent kinase 4/6 inhibitors improved survival outcome of hormone receptor (HR) positive metastatic breast cancer (MBC) patients, including Asian population. However, Asian real-world data of palbociclib is limited. We analyzed the real-world clinical practice patterns and outcome in HR-positive, MBC Asian patients treated with palbociclib.
Materials and Methods:
Between April 2017 to November 2019, 169 HR-positive, human epidermal growth factor-2–negative MBC patients treated with letrozole or fulvestrant plus palbocilib were enrolled from eight institutions. Survival outcome (progression-free survival [PFS]), treatment response and toxicity profiles were analyzed.
Results:
Median age of letrozole plus palbociclib (145 patients, 85.8%) and fulvestrant plus palbociclib (24 patients, 14.2%) was 58 and 53.5 years, with median follow-up duration of 14.63 months (range 0.2 to 33.9 months). Median PFS (mPFS) of letrozole plus palbociclib and fulvestrant plus palbociclib was 25.6 (95% confidence interval [CI], 19.1 to not reached) and 6.37 months (95% CI, 5.33 to not reached), comparable to previous phase 3 trials. In letrozole plus palbociclib arm, luminal A (hazard ratio, 2.86; 95% CI, 1.20 to 6.80; p=0.017) and patients with good performance (Eastern Cooperative Oncology Group 0-1 [hazard ratio, 3.68; 95% CI, 1.70 to 7.96]) showed better mPFS. In fulvestrant plus palbociclib group, chemotherapy naïve patients showed better mPFS (hazard ratio, 12.51, 95% CI, 1.59 to 99.17; p=0.017). The most common grade 3 or 4 adverse event was neutropenia (letrozole 86.3%, fulvestrant 88.3%).
Conclusion
To our knowledge, this is the first real-world data of palbociclib reported in Asia. Palbociclib showed comparable benefit to previous phase 3 trials in Asian patients during daily clinical practice.
8.Monitoring Radiation Doses during Diagnostic and Therapeutic Neurointerventional Procedures: Multicenter Study for Establishment of Reference Levels
Yon-Kwon IHN ; Bum-soo KIM ; Hae Woong JEONG ; Sang Hyun SUH ; Yoo Dong WON ; Young-Jun LEE ; Dong Joon KIM ; Pyong JEON ; Chang-Woo RYU ; Sang-il SUH ; Dae Seob CHOI ; See Sung CHOI ; Sang Heum KIM ; Jun Soo BYUN ; Jieun RHO ; Yunsun SONG ; Woo Sang JEONG ; Noah HONG ; Sung Hyun BAIK ; Jeong Jin PARK ; Soo Mee LIM ; Jung-Jae KIM ; Woong YOON
Neurointervention 2021;16(3):240-251
Purpose:
To assess patient radiation doses during diagnostic and therapeutic neurointerventional procedures from multiple centers and propose dose reference level (RL).
Materials and Methods:
Consecutive neurointerventional procedures, performed in 22 hospitals from December 2020 to June 2021, were retrospectively studied. We collected data from a sample of 429 diagnostic and 731 therapeutic procedures. Parameters including dose-area product (DAP), cumulative air kerma (CAK), fluoroscopic time (FT), and total number of image frames (NI) were obtained. RL were calculated as the 3rd quartiles of the distribution.
Results:
Analysis of 1160 procedures from 22 hospitals confirmed the large variability in patient dose for similar procedures. RLs in terms of DAP, CAK, FT, and NI were 101.6 Gy·cm2, 711.3 mGy, 13.3 minutes, and 637 frames for cerebral angiography, 199.9 Gy·cm2, 3,458.7 mGy, 57.3 minutes, and 1,000 frames for aneurysm coiling, 225.1 Gy·cm2, 1,590 mGy, 44.7 minutes, and 800 frames for stroke thrombolysis, 412.3 Gy·cm2, 4,447.8 mGy, 99.3 minutes, and 1,621.3 frames for arteriovenous malformation (AVM) embolization, respectively. For all procedures, the results were comparable to most of those already published. Statistical analysis showed male and presence of procedural complications were significant factors in aneurysmal coiling. Male, number of passages, and procedural combined technique were significant factors in stroke thrombolysis. In AVM embolization, a significantly higher radiation dose was found in the definitive endovascular cure group.
Conclusion
Various RLs introduced in this study promote the optimization of patient doses in diagnostic and therapeutic interventional neuroradiology procedures. Proposed 3rd quartile DAP (Gy·cm2) values were 101.6 for diagnostic cerebral angiography, 199.9 for aneurysm coiling, 225.1 for stroke thrombolysis, and 412.3 for AVM embolization. Continual evolution of practices and technologies requires regular updates of RLs.
9.Impacts of Subtype on Clinical Feature and Outcome of Male Breast Cancer: Multicenter Study in Korea (KCSG BR16-09)
Jieun LEE ; Keun Seok LEE ; Sung Hoon SIM ; Heejung CHAE ; Joohyuk SOHN ; Gun Min KIM ; Kyung-Hee LEE ; Su Hwan KANG ; Kyung Hae JUNG ; Jae-ho JEONG ; Jae Ho BYUN ; Su-Jin KOH ; Kyoung Eun LEE ; Seungtaek LIM ; Hee Jun KIM ; Hye Sung WON ; Hyung Soon PARK ; Guk Jin LEE ; Soojung HONG ; Sun Kyung BAEK ; Soon Il LEE ; Moon Young CHOI ; In Sook WOO
Cancer Research and Treatment 2023;55(1):123-135
Purpose:
The treatment of male breast cancer (MBC) has been extrapolated from female breast cancer (FBC) because of its rarity despite their different clinicopathologic characteristics. We aimed to investigate the distribution of intrinsic subtypes based on immunohistochemistry, their clinical impact, and treatment pattern in clinical practice through a multicenter study in Korea.
Materials and Methods:
We retrospectively analyzed clinical data of 248 MBC patients from 18 institutions across the country from January 1995 to July 2016.
Results:
The median age of MBC patients was 63 years (range, 25 to 102 years). Among 148 intrinsic subtype classified patients, 61 (41.2%), 44 (29.7%), 29 (19.5%), and 14 (9.5%) were luminal A, luminal B, human epidermal growth factor receptor 2, and triple-negative breast cancer, respectively. Luminal A subtype showed trends for superior survival compared to other subtypes. Most hormone receptor-positive patients (166 patients, 82.6%) received adjuvant endocrine treatment. Five-year completion of adjuvant endocrine treatment was associated with superior disease-free survival (DFS) in patients classified with an intrinsic subtype (hazard ratio [HR], 0.15; 95% confidence interval [CI], 0.04 to 0.49; p=0.002) and in all patients (HR, 0.16; 95% CI, 0.05 to 0.54; p=0.003).
Conclusion
Distribution of subtypes of MBC was similar to FBC and luminal type A was most common. Overall survival tended to be improved for luminal A subtype, although there was no statistical significance. Completion of adjuvant endocrine treatment was associated with prolonged DFS in intrinsic subtype classified patients. MBC patients tended to receive less treatment. MBC patients should receive standard treatment according to guidelines as FBC patients.