1.Rationale, Design, and Interim Observations of the Steady Movement With Innovating Leadership for Heart Failure (SMILE HF) Registry: A Multicenter Prospective Cohort Registry for Patients With Acute Heart Failure
Jah Yeon CHOI ; Mi-Na KIM ; Seongwoo HAN ; Sunki LEE ; Myung Soo PARK ; Min Gyu KONG ; Sung-Hea KIM ; Yong-Hyun KIM ; Sang-Ho JO ; Sungeun KIM ; Seonghoon CHOI ; Jinsung JEON ; Jieun LEE ; Byambakhand BATTUMUR ; Seong-Mi PARK ; Eung Ju KIM ;
International Journal of Heart Failure 2024;6(3):129-136
Background and Objectives:
Heart failure (HF) is a leading cause of hospitalization and death worldwide. The Steady Movement with Innovating Leadership for Heart Failure (SMILE HF) aims to evaluate the clinical characteristics, management, hospital course, and long-term outcomes of patients hospitalized for acute HF in South Korea.
Methods:
This prospective, observational multicenter cohort study was conducted on consecutive patients hospitalized for acute HF in nine university hospitals since September 2019. Enrolment of 2000 patients should be completed in 2024, and follow-up is planned through 2025.
Results:
Interim analysis of 1,052 consecutive patients was performed to understand the baseline characteristics. The mean age was 69±15 years; 57.6% were male. The mean left ventricular ejection fraction was 39±15%. The prevalences of HF with reduced ejection fraction, HF with mildly reduced ejection fraction, and HF with preserved ejection fraction were 50.9%, 15.3%, and 29.2%. Ischemic cardiomyopathy (CMP) was the most common etiology (32%), followed by tachycardia-induced CMP (12.8%) and idiopathic dilated CMP (9.5%). The prescription rate of angiotensin-converting enzyme inhibitor/angiotensin receptor blockers/angiotensin receptor/ neprilysin inhibitor, beta-blockers, spironolactone, and sodium-glucose cotransporter-2 inhibitors at discharge were 76.8%, 66.5%, 50.0%, and 17.5%, respectively. The post-discharge 90-day mortality and readmission rates due to HF aggravation were 2.0% and 6.4%, respectively. Our analysis reveals the current state of acute HF in South Korea.
Conclusions
Our interim analysis provides valuable insights into the clinical characteristics, management, and early outcomes of acute HF patients in South Korea, highlighting the current state and treatment patterns in this population.
2.Factor Structure and Validation of the Revised Suicide Crisis Inventory in a Korean Population
Ji Yoon PARK ; Megan L. ROGERS ; Sarah BLOCH-ELKOUBY ; Jenelle A. RICHARDS ; Sungwoo LEE ; Igor GALYNKER ; Sungeun YOU
Psychiatry Investigation 2023;20(2):162-173
Objective:
Because of the exceptionally high suicide rates in South Korea, new assessment methods are needed to improve suicide prevention. The current study aims to validate the revised Suicide Crisis Inventory-2 (SCI-2), a self-report measure that assesses a cognitiveaffective pre-suicidal state in a Korean sample.
Methods:
With data from 1,061 community adults in South Korea, confirmatory factor analyses were first conducted to test the proposed one-factor and five-factor structures of the SCI-2. Also, an exploratory factor analysis (EFA) was performed to examine possible alternative factor structure of the inventory.
Results:
The one-factor model of the SCI-2 resulted in good model fit and similarly, the five-factor model also exhibited strong fit. Comparing the two models, the five-factor was evaluated as the superior model fit. An alternative 4-factor model derived from EFA exhibited a comparable model fit. The Korean version of the SCI-2 had high internal consistency and strong concurrent validity in relation to symptoms of suicidal ideation, depression, and anxiety.
Conclusion
The SCI-2 is an appropriate and a valid tool for measuring one’s proximity to imminent suicide risk. However, the exact factor structure of the SCI-2 may be culture-sensitive and warrants further study.
3.Five-Year Retention of Perampanel and Polytherapy Patterns:328 Patients From a Single Center in South Korea
Kyung-Il PARK ; Sungeun HWANG ; Hyoshin SON ; Kon CHU ; Ki-Young JUNG ; Sang Kun LEE
Journal of Clinical Neurology 2023;19(4):358-364
Background:
and Purpose Perampanel (PER) is an α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid antagonist used to treat focal and generalized epilepsy. Comprehensive data from real-world settings with long-term follow-ups are still scarce. This study aimed to determine the factors related to PER retention and the polytherapy pattern with PER.
Methods:
We reviewed all patients with epilepsy with a history of PER prescription during 2008–2017 and over a follow-up of >3 years. PER usage patterns and associated factors were analyzed.
Results:
Among the 2,655 patients in the cohort, 328 (150 females, 178 males) were enrolled.The ages at onset and diagnosis were 21.1±14.7 years and 25.6±16.1 years (mean±standard deviation), respectively. The age at the first visit to our center was 31.8±13.8 years. Seizure types were focal, generalized, and unknown onset in 83.8%, 15.9%, and 0.3% of patients, respectively. The most common etiology was structural (n=109, 33.2%). The maintenance duration of PER was 22.6±19.2 months (range=1–66 months). The initial number of concomitant antiseizure medications was 2.4±1.4 (range=0–9). The most common regimen was PER plus levetiracetam (n=41, 12.5%). The median number of 1-year seizures before PER usage was 8 (range=0–1,400). A seizure reduction of >50% was recorded in 34.7% of patients (52.0% and 29.2% in generalized and focal seizures, respectively). The 1-, 2-, 3-, 4-, and 5-year retention rates for PER were 65.3%, 50.4%, 40.4%, 35.3%, and 21.5%, respectively. A multivariate analysis indicated that lower age at onset was associated with longer retention (p=0.01).
Conclusions
PER was safely used in patients with diverse characteristics and was maintained for a long time in a real-world setting, especially in patients with a lower age at onset.
4.Automated Composition Analysis of Thrombus from Endovascular Treatment in Acute Ischemic Stroke Using Computer Vision
JoonNyung HEO ; Young SEOG ; Hyungwoo LEE ; Il Hyung LEE ; Sungeun KIM ; Jang-Hyun BAEK ; Hyungjong PARK ; Kwon-Duk SEO ; Gyu Sik KIM ; Han-Jin CHO ; Minyoul BAIK ; Joonsang YOO ; Jinkwon KIM ; Jun LEE ; Yoon-Kyung CHANG ; Tae-Jin SONG ; Jung Hwa SEO ; Seong Hwan AHN ; Heow Won LEE ; Il KWON ; Eunjeong PARK ; Young Dae KIM ; Hyo Suk NAM
Journal of Stroke 2022;24(3):433-435
5.Diagnostic Performance of Spin-Echo Echo-Planar Imaging Magnetic Resonance Elastography in 3T System for Noninvasive Assessment of Hepatic Fibrosis
Se Woo KIM ; Jeong Min LEE ; Sungeun PARK ; Ijin JOO ; Jeong Hee YOON ; Won CHANG ; Haeryoung KIM
Korean Journal of Radiology 2022;23(2):180-188
Objective:
To validate the performance of 3T spin-echo echo-planar imaging (SE-EPI) magnetic resonance elastography (MRE) for staging hepatic fibrosis in a large population, using surgical specimens as the reference standard.
Materials and Methods:
This retrospective study initially included 310 adults (155 undergoing hepatic resection and 155 undergoing donor hepatectomy) with histopathologic results from surgical liver specimens. They underwent 3T SE-EPI MRE ≤ 3 months prior to surgery. Demographic findings, underlying liver disease, and hepatic fibrosis pathologic stage according to METAVIR were recorded. Liver stiffness (LS) was measured by two radiologists, and inter-reader reproducibility was evaluated using the intraclass correlation coefficient (ICC). The mean LS of each fibrosis stage (F0–F4) was calculated in total and for each etiologic subgroup. Comparisons among subgroups were performed using the Kruskal–Wallis test and Conover post-hoc test. The cutoff values for fibrosis staging were estimated using receiver operating characteristic (ROC) curve analysis.
Results:
Inter-reader reproducibility was excellent (ICC, 0.98; 95% confidence interval, 0.97–0.99). The mean LS values were 1.91, 2.41, 3.24, and 5.41 kPa in F0–F1 (n = 171), F2 (n = 26), F3 (n = 38), and F4 (n = 72), respectively. The discriminating cutoff values for diagnosing ≥ F2, ≥ F3, and F4 were 2.18, 2.71, and 3.15 kPa, respectively, with the ROC curve areas of 0.97–0.98 (sensitivity 91.2%–95.9%, specificity 90.7%–99.0%). The mean LS was significantly higher in patients with cirrhosis (F4) of nonviral causes, such as primary biliary cirrhosis (9.56 kPa) and alcoholic liver disease (7.17 kPa) than in those with hepatitis B or C cirrhosis (4.28 and 4.92 kPa, respectively). There were no statistically significant differences in LS among the different etiologic subgroups in the F0–F3 stages.
Conclusion
The 3T SE-EPI MRE demonstrated high interobserver reproducibility, and our criteria for staging hepatic fibrosis showed high diagnostic performance. LS was significantly higher in patients with non-viral cirrhosis than in those with viral cirrhosis.
6.Early Trauma and Relationships among Recent Stress, Depressive Symptoms, Anxiety Symptoms, and Suicidal Ideation in Korean Women
C. Hyung Keun PARK ; Jae Won LEE ; Jungjoon MOON ; Dong-Wook JEON ; Sang Yeol LEE ; Se-Hoon SHIM ; Shin Gyeom KIM ; Jeewon LEE ; Jong-Woo PAIK ; Seong-Jin CHO ; Min-Hyuk KIM ; Sungeun YOU ; Hong Jin JEON ; Sang Jin RHEE ; Min Ji KIM ; Junghyun KIM ; Yong Min AHN
Journal of Korean Medical Science 2021;36(10):e72-
Background:
Evidence continues to accumulate that the presence or absence of early trauma (ET) implies unique characteristics in the relationships between suicidal ideation and its risk factors. We examined the relationships among recent stress, depressive symptoms, anxiety symptoms, and suicidal ideation in Korean suicidal women with or without such a history.
Methods:
Using data on suicidal adult females, 217 victims and 134 non-victims of ET, from the Korean Cohort for the Model Predicting a Suicide and Suicide-related Behavior, we performed structural equation modeling to investigate the contribution of recent stress, depressive symptoms, and anxiety symptoms on suicidal ideation within each group according to the presence or absence of a history of ET.
Results:
Structural equation modeling with anxiety and depressive symptoms as potential mediators showed a good fit. Recent stress had a direct effect on both depressive symptoms and anxiety symptoms in both groups. Only anxiety symptoms for victims of ET (standardized regression weight, 0.281; P = 0.005) and depressive symptoms for non-victims of ET (standardized regression weight, 0.326; P = 0.003) were full mediators that increased suicidal ideation. Thus, stress contributed to suicidal ideation by increasing the level of anxiety and depressive symptoms for victims and non-victims, respectively.
Conclusion
Tailored strategies to reduce suicidal ideation should be implemented according to group type, victims or non-victims of ET. Beyond educating suicidal women in stressmanagement techniques, it would be effective to decrease anxiety symptoms for those with a history of ET and decrease depressive symptoms for those without such a history.
7.Early Trauma and Relationships among Recent Stress, Depressive Symptoms, Anxiety Symptoms, and Suicidal Ideation in Korean Women
C. Hyung Keun PARK ; Jae Won LEE ; Jungjoon MOON ; Dong-Wook JEON ; Sang Yeol LEE ; Se-Hoon SHIM ; Shin Gyeom KIM ; Jeewon LEE ; Jong-Woo PAIK ; Seong-Jin CHO ; Min-Hyuk KIM ; Sungeun YOU ; Hong Jin JEON ; Sang Jin RHEE ; Min Ji KIM ; Junghyun KIM ; Yong Min AHN
Journal of Korean Medical Science 2021;36(10):e72-
Background:
Evidence continues to accumulate that the presence or absence of early trauma (ET) implies unique characteristics in the relationships between suicidal ideation and its risk factors. We examined the relationships among recent stress, depressive symptoms, anxiety symptoms, and suicidal ideation in Korean suicidal women with or without such a history.
Methods:
Using data on suicidal adult females, 217 victims and 134 non-victims of ET, from the Korean Cohort for the Model Predicting a Suicide and Suicide-related Behavior, we performed structural equation modeling to investigate the contribution of recent stress, depressive symptoms, and anxiety symptoms on suicidal ideation within each group according to the presence or absence of a history of ET.
Results:
Structural equation modeling with anxiety and depressive symptoms as potential mediators showed a good fit. Recent stress had a direct effect on both depressive symptoms and anxiety symptoms in both groups. Only anxiety symptoms for victims of ET (standardized regression weight, 0.281; P = 0.005) and depressive symptoms for non-victims of ET (standardized regression weight, 0.326; P = 0.003) were full mediators that increased suicidal ideation. Thus, stress contributed to suicidal ideation by increasing the level of anxiety and depressive symptoms for victims and non-victims, respectively.
Conclusion
Tailored strategies to reduce suicidal ideation should be implemented according to group type, victims or non-victims of ET. Beyond educating suicidal women in stressmanagement techniques, it would be effective to decrease anxiety symptoms for those with a history of ET and decrease depressive symptoms for those without such a history.
8.Volumetric CT Texture Analysis of Intrahepatic Mass-Forming Cholangiocarcinoma for the Prediction of Postoperative Outcomes: Fully Automatic Tumor Segmentation Versus Semi-Automatic Segmentation
Sungeun PARK ; Jeong Min LEE ; Junghoan PARK ; Jihyuk LEE ; Jae Seok BAE ; Jae Hyun KIM ; Ijin JOO
Korean Journal of Radiology 2021;22(11):1797-1808
Objective:
To determine whether volumetric CT texture analysis (CTTA) using fully automatic tumor segmentation can help predict recurrence-free survival (RFS) in patients with intrahepatic mass-forming cholangiocarcinomas (IMCCs) after surgical resection.
Materials and Methods:
This retrospective study analyzed the preoperative CT scans of 89 patients with IMCCs (64 male; 25 female; mean age, 62.1 years; range, 38–78 years) who underwent surgical resection between January 2005 and December 2016. Volumetric CTTA of IMCCs was performed in late arterial phase images using both fully automatic and semi-automatic liver tumor segmentation techniques. The time spent on segmentation and texture analysis was compared, and the first-order and second-order texture parameters and shape features were extracted. The reliability of CTTA parameters between the techniques was evaluated using intraclass correlation coefficients (ICCs). Intra- and interobserver reproducibility of volumetric CTTAs were also obtained using ICCs. Cox proportional hazard regression were used to predict RFS using CTTA parameters and clinicopathological parameters.
Results:
The time spent on fully automatic tumor segmentation and CTTA was significantly shorter than that for semiautomatic segmentation: mean ± standard deviation of 1 minutes 37 seconds ± 50 seconds vs. 10 minutes 48 seconds ± 13 minutes 44 seconds (p < 0.001). ICCs of the texture features between the two techniques ranged from 0.215 to 0.980. ICCs for the intraobserver and interobserver reproducibility using fully automatic segmentation were 0.601–0.997 and 0.177– 0.984, respectively. Multivariable analysis identified lower first-order mean (hazard ratio [HR], 0.982; p = 0.010), larger pathologic tumor size (HR, 1.171; p < 0.001), and positive lymph node involvement (HR, 2.193; p = 0.014) as significant parameters for shorter RFS using fully automatic segmentation.
Conclusion
Volumetric CTTA parameters obtained using fully automatic segmentation could be utilized as prognostic markers in patients with IMCC, with comparable reproducibility in significantly less time compared with semi-automatic segmentation.
9.The Art Therapy Experiences of Patients and Their Family Members in Hospice Palliative Care
Korean Journal of Hospice and Palliative Care 2020;23(4):183-197
Purpose:
In this study, the researchers closely investigated the psychosocial problems faced by terminal cancer patients and their family members in hospice palliative care units.
Methods:
The investigators conducted four sessions of art therapy intervention programs for the terminal cancer patients and their family members, carried out in-depth interviews about the influence of the cancer experience on their family function and quality of life, and analyzed their experiences using grounded theory methodology.
Results:
After providing autonomous written informed consent, six pairs of terminally ill cancer patients and their family members, accounting for a total of 17 participants with the inclusion of additional family members who took part sporadically, took part in the art therapy intervention and interviews. The raw data, in the form of verbatim records, were analyzed according to the procedures of grounded theory (open, axial, and selective coding). Through these processes, a total of 154 concepts, 56 subcategories, and 13 categories were identified. Families were classified into four types according to their family function, quality of life, and attitude toward death. Though the art therapy intervention, patients and their family members experienced three stages over time.
Conclusion
This research focused on essential aspects of the family relationships and the art therapy experiences of terminal cancer patients and their family members through an art therapy intervention in the context of hospice palliative care. Based on these observations, the researchers constructed a theoretical rationale for art therapy interventions delivered to patients and their family members in the process of hospice palliative care.
10.The Art Therapy Experiences of Patients and Their Family Members in Hospice Palliative Care
Korean Journal of Hospice and Palliative Care 2020;23(4):183-197
Purpose:
In this study, the researchers closely investigated the psychosocial problems faced by terminal cancer patients and their family members in hospice palliative care units.
Methods:
The investigators conducted four sessions of art therapy intervention programs for the terminal cancer patients and their family members, carried out in-depth interviews about the influence of the cancer experience on their family function and quality of life, and analyzed their experiences using grounded theory methodology.
Results:
After providing autonomous written informed consent, six pairs of terminally ill cancer patients and their family members, accounting for a total of 17 participants with the inclusion of additional family members who took part sporadically, took part in the art therapy intervention and interviews. The raw data, in the form of verbatim records, were analyzed according to the procedures of grounded theory (open, axial, and selective coding). Through these processes, a total of 154 concepts, 56 subcategories, and 13 categories were identified. Families were classified into four types according to their family function, quality of life, and attitude toward death. Though the art therapy intervention, patients and their family members experienced three stages over time.
Conclusion
This research focused on essential aspects of the family relationships and the art therapy experiences of terminal cancer patients and their family members through an art therapy intervention in the context of hospice palliative care. Based on these observations, the researchers constructed a theoretical rationale for art therapy interventions delivered to patients and their family members in the process of hospice palliative care.

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