1.Palliative Care and Hospice for Heart Failure Patients: Position Statement From the Korean Society of Heart Failure
Seung-Mok LEE ; Hae-Young LEE ; Shin Hye YOO ; Hyun-Jai CHO ; Jong-Chan YOUN ; Seong-Mi PARK ; Jin-Ok JEONG ; Min-Seok KIM ; Chi Young SHIM ; Jin Joo PARK ; Kye Hun KIM ; Eung Ju KIM ; Jeong Hoon YANG ; Jae Yeong CHO ; Sang-Ho JO ; Kyung-Kuk HWANG ; Ju-Hee LEE ; In-Cheol KIM ; Gi Beom KIM ; Jung Hyun CHOI ; Sung-Hee SHIN ; Wook-Jin CHUNG ; Seok-Min KANG ; Myeong Chan CHO ; Dae-Gyun PARK ; Byung-Su YOO
International Journal of Heart Failure 2025;7(1):32-46
Heart failure (HF) is a major cause of mortality and morbidity in South Korea, imposing substantial physical, emotional, and financial burdens on patients and society. Despite the high burden of symptom and complex care needs of HF patients, palliative care and hospice services remain underutilized in South Korea due to cultural, institutional, and knowledge-related barriers. This position statement from the Korean Society of Heart Failure emphasizes the need for integrating palliative and hospice care into HF management to improve quality of life and support holistic care for patients and their families. By clarifying the role of palliative care in HF and proposing practical referral criteria, this position statement aims to bridge the gap between HF and palliative care services in South Korea, ultimately improving patient-centered outcomes and aligning treatment with the goals and values of HF patients.
2.Influences of Generation Z Characteristics on Job Embeddedness and Turnover Intention
Su Hyun KIM ; Chae Yeon PARK ; Seung Mok SHIN ; Seung Hun SHIN ; Grace CHOE ; Da Yeong HWANG ; Young Hee CHAE ; Geun-Hee KIM
Journal of Korean Academy of Nursing Administration 2025;31(3):291-301
This study explored how Generation Z characteristics—specifically work–life balance, growth needs, and individualism—along with work environment, emotional labor, and interpersonal skills, affect job embeddedness among newly graduated nurses. It also examined whether job embeddedness mediates the relationship between these factors and turnover intention. Methods: A correlational descriptive study was conducted by analyzing survey data collected from 131 clinical nurses born between 1995 and 2000, who had less than three years of nursing work experience in South Korea. Hierarchical multiple regression analysis was employed to identify the independent effects of Generation Z characteristics on job embeddedness, over and above the effects of work environment, emotional labor, and interpersonal skills. Path analysis using bootstrapping method was conducted to examine the mediating role of job embeddedness in turnover intention. Results: Needs for growth and work environment were significant predictors of job embeddedness among newly graduated nurses. Furthermore, the effects of needs for growth and work environment on turnover intention were significantly mediated by job embeddedness. Conclusion: Understanding the characteristics of Generation Z, particularly their needs for growth, along with the work environment, is essential for enhancing job embeddedness among newly graduated nurses. Strengthening job embeddedness can effectively reduce their turnover intention.
3.Evaluation of the Regulatory Required Post-Authorization Safety Study for Propacetamol:Nested Case-Control and Case-Time-Control Studies
Sungho BEA ; Dongwon YOON ; Han Eol JEONG ; Juhong JUNG ; Seung-Mok PARK ; Juhee JEON ; Young-Min YE ; Jae-Hyun LEE ; Ju-Young SHIN
Yonsei Medical Journal 2024;65(2):120-128
Purpose:
Following the withdrawal of propacetamol in Europe owing to safety issues, the regulatory authority of South Korea requested a post-marketing surveillance study to investigate its safety profile.
Materials and Methods:
We conducted nested case-control and case-time-control (CTC) analyses of cases and controls identified for outcomes of interest, including anaphylaxis, thrombosis, and Stevens–Johnson syndrome (SJS), using the claims database of South Korea, 2010–2019. Risk-set sampling was used to match each case with up to 10 controls for age, sex, cohort entry date, and follow-up duration. Exposure to anaphylaxis, thrombosis, and SJS was assessed within 7, 90, and 30 days of the index date, respectively. We calculated odds ratios (OR) with 95% confidence intervals (CIs) using conditional logistic regression to assess the risk of outcomes associated with propacetamol.
Results:
We identified cases of anaphylaxis (n=61), thrombosis (n=95), and SJS (n=1) and matched them to controls (173, 268, and 4, respectively). In the nested case-control analysis, the ORs for anaphylaxis and SJS were inestimable given the small number of propacetamol users during the risk period; meanwhile, the OR for thrombosis was 1.60 (95% CI 0.71–3.62). In the CTC design, the effect estimate was only estimated for thrombosis (OR 0.56, 95% CI 0.09–3.47).
Conclusion
In both nested case-control and CTC analyses, propacetamol was not associated with an increased risk of anaphylaxis, thrombosis, or SJS. The findings from this study, which used routinely collected clinical data, provide reassuring real-world evidence regarding the safety of propacetamol in a nationwide population to support regulatory decision-making.
4.A Novel Incisionless Disposable Vaginal Device for Female Stress Urinary Incontinence: Efficacy and Quality of Life
Chung Lyul LEE ; Jong Mok PARK ; Ji Yong LEE ; Seung Woo YANG ; Hyun Seok NA ; Jaegeun LEE ; Sunkyung JUNG ; Ju Hyun SHIN
International Neurourology Journal 2023;27(Suppl 1):S40-48
Purpose:
This clinical study sought to evaluate the possible clinical effectiveness and practicality of URINO, an innovative, incisionless, and disposable intravaginal device, designed for patients suffering from stress urinary incontinence.
Methods:
A prospective, multicenter, single-arm clinical trial was carried out, involving women diagnosed with stress urinary incontinence who used a self-inserted, disposable intravaginal pessary device. Comparisons were made between the results of the 20-minute pad-weight gain (PWG) test at baseline and visit 3, where the device was applied. After 1 week of device usage, compliance, satisfaction, the sensation of a foreign body, and adverse events were assessed.
Results:
Out of 45 participants, 39 completed the trial and expressed satisfaction within the modified intention-to-treat group. The average 20-minute PWG of participants was 17.2±33.6 g at baseline and significantly dropped to 5.3±16.2 g at visit 3 with device application. A total of 87.2% of participants exhibited a reduction ratio of PWG by 50% or more, surpassing the clinical trial success benchmark of 76%. The mean compliance was recorded as 76.6%±26.6%, the average visual analogue scale score for patient satisfaction was 6.4±2.6, and the sensation of a foreign body, measured on a 5-point Likert scale, was 3.1±1.2 after 1 week of device use. No serious adverse events were reported; there was 1 instance of microscopic hematuria and 2 cases of pyuria, all of which recovered.
Conclusions
The investigated device demonstrated significant clinical effectiveness and safety for patients with stress urinary incontinence. It was easy to use, showing favorable patient compliance. We propose that these disposable intravaginal pessaries could potentially be an alternative treatment for patients with stress urinary incontinence who are seeking nonsurgical options or are unable to undergo surgery.Trial Registration: The study was registered as a clinical trial (KCT0008369).
5.Association between initial fibrinogen levels and adverse outcomes in emergency department patients with primary postpartum hemorrhage
Jae Hoon LEE ; Chang Hwan SOHN ; Youn-Jung KIM ; Seung Mok RYOO ; Shin AHN ; Dong Woo SEO ; Won Young KIM
Journal of the Korean Society of Emergency Medicine 2023;34(5):453-461
Objective:
This study evaluates the association between the initial fibrinogen levels and adverse outcomes in emergency department (ED) patients with primary postpartum hemorrhage (PPH).
Methods:
This retrospective observational study was performed between January 2004 and December 2021 in the ED of a university-affiliated tertiary referral center. Primary PPH patients with fibrinogen level assessments in the ED were included. Patients were classified into two groups: the adverse outcome group-defined as patients receiving massive transfusion (transfusion of ≥10 units of packed red blood cells within the initial 24 hours), uterine artery embolization or emergency hysterectomy, intensive care unit admission, and in-hospital mortality-and the non-adverse outcome group.
Results:
Of the 481 patients included in the study, 276 (57.4%) had adverse outcomes. The median fibrinogen level in patients with adverse outcomes was lower than in patients without adverse outcomes-149.5 mg/dL (range, 66.8-228.8) vs. 288.0 mg/dL (range, 215.0-349.0), respectively; P<0.001. The area under the receiver operating characteristic curve of the initial fibrinogen level for adverse outcomes was 0.811 (95% confidence interval, 0.773-0.849; P<0.001). The occurrence of adverse outcomes increased with decreasing fibrinogen levels (P<0.001). When the cutoff value of the initial fibrinogen level was 400 mg/dL, the sensitivity and negative predictive values for predicting adverse outcomes were 98.6% and 84.6%, respectively. When the cutoff value of the initial fibrinogen level was 100 mg/dL, the specificity and positive predictive values were 96.6% and 92.8%, respectively.
Conclusion
The initial fibrinogen levels on ED admission are associated with adverse outcomes.
6.Modification of HEART Pathway for Patients With Chest Pain: A Korean Perspective
Bora CHAE ; Shin AHN ; Youn-Jung KIM ; Seung Mok RYOO ; Chang Hwan SOHN ; Dong-Woo SEO ; Won Young KIM
Korean Circulation Journal 2023;53(9):635-644
Background and Objectives:
The History, Electrocardiography, Age, Risk factors, and Troponin (HEART) pathway was developed to identify patients at low risk of a major adverse cardiac event (MACE) among patients presenting with chest pain to the emergency department.
Methods:
We modified the HEART pathway by replacing the Korean cut-off of 25 kg/m2 with the conventional threshold of 30 kg/m2 in the definition of obesity among risk factors. The primary outcome was a MACE within 30 days, which included acute myocardial infarction, primary coronary intervention, coronary artery bypass grafting, and all-cause death.
Results:
Of the 1,304 patients prospectively enrolled, MACE occurred in 320 (24.5%). The modified HEART pathway identified 37.3% of patients as low-risk compared with 38.3% using the HEART pathway. Of the 500 patients classified as low-risk with HEART pathway, 8 (1.6%) experienced MACE, and of the 486 low-risk patients with modified HEART pathway, 4 (0.8%) experienced MACE. The modified HEART pathway had a sensitivity of 98.8%, a negative predictive value (NPV) of 99.2%, a specificity of 49.0%, and a positive predictive value (PPV) of 38.6%, compared with the original HEART pathway, with a sensitivity of 97.5%, a NPV of 98.4%, a specificity of 50.0%, and a PPV of 38.8%.
Conclusions
When applied to Korean population, modified HEART pathway could identify patients safe for early discharge more accurately by using body mass index cut-off levels suggested for Koreans.
7.Modified Cardiovascular Sequential Organ Failure Assessment Score in Sepsis: External Validation in Intensive Care Unit Patients
Byuk Sung KO ; Seung Mok RYOO ; Eunah HAN ; Hyunglan CHANG ; Chang June YUNE ; Hui Jai LEE ; Gil Joon SUH ; Sung-Hyuk CHOI ; Sung Phil CHUNG ; Tae Ho LIM ; Won Young KIM ; Jang Won SOHN ; Mi Ae JEONG ; Sung Yeon HWANG ; Tae Gun SHIN ; Kyuseok KIM ; On behalf of Korean Shock Society
Journal of Korean Medical Science 2023;38(50):e418-
Background:
There is a need to update the cardiovascular (CV) Sequential Organ Failure Assessment (SOFA) score to reflect the current practice in sepsis. We previously proposed the modified CV SOFA score from data on blood pressure, norepinephrine equivalent dose, and lactate as gathered from emergency departments. In this study, we externally validated the modified CV SOFA score in multicenter intensive care unit (ICU) patients.
Methods:
A multicenter retrospective observational study was conducted on ICU patients at six hospitals in Korea. We included adult patients with sepsis who were admitted to ICUs. We compared the prognostic performance of the modified CV/total SOFA score and the original CV/total SOFA score in predicting 28-day mortality. Discrimination and calibration were evaluated using the area under the receiver operating characteristic curve (AUROC) and the calibration curve, respectively.
Results:
We analyzed 1,015 ICU patients with sepsis. In overall patients, the 28-day mortality rate was 31.2%. The predictive validity of the modified CV SOFA (AUROC, 0.712; 95% confidence interval [CI], 0.677–0.746; P < 0.001) was significantly higher than that of the original CV SOFA (AUROC, 0.644; 95% CI, 0.611–0.677). The predictive validity of modified total SOFA score for 28-day mortality was significantly higher than that of the original total SOFA (AUROC, 0.747 vs. 0.730; 95% CI, 0.715–0.779; P = 0.002). The calibration curve of the original CV SOFA for 28-day mortality showed poor calibration. In contrast, the calibration curve of the modified CV SOFA for 28-day mortality showed good calibration.
Conclusion
In patients with sepsis in the ICU, the modified SOFA score performed better than the original SOFA score in predicting 28-day mortality.
8.The Extent of Late Gadolinium Enhancement Can Predict Adverse Cardiac Outcomes in Patients with Non-Ischemic Cardiomyopathy with Reduced Left Ventricular Ejection Fraction: A Prospective Observational Study
Eun Kyoung KIM ; Ga Yeon LEE ; Shin Yi JANG ; Sung-A CHANG ; Sung Mok KIM ; Sung-Ji PARK ; Jin-Oh CHOI ; Seung Woo PARK ; Yeon Hyeon CHOE ; Sang-Chol LEE ; Jae K. OH
Korean Journal of Radiology 2021;22(3):324-333
Objective:
The clinical course of an individual patient with heart failure is unpredictable with left ventricle ejection fraction (LVEF) only. We aimed to evaluate the prognostic value of cardiac magnetic resonance (CMR)-derived myocardial fibrosis extent and to determine the cutoff value for event-free survival in patients with non-ischemic cardiomyopathy (NICM) who had severely reduced LVEF.
Materials and Methods:
Our prospective cohort study included 78 NICM patients with significantly reduced LV systolic function (LVEF < 35%). CMR images were analyzed for the presence and extent of late gadolinium enhancement (LGE). The primary outcome was major adverse cardiac events (MACEs), defined as a composite of cardiac death, heart transplantation, implantable cardioverter-defibrillator discharge for major arrhythmia, and hospitalization for congestive heart failure within 5 years after enrollment.
Results:
A total of 80.8% (n = 63) of enrolled patients had LGE, with the median LVEF of 25.4% (19.8–32.4%). The extent of myocardial scarring was significantly higher in patients who experienced MACE than in those without any cardiac events (22.0 [5.5–46.1] %LV vs. 6.7 [0–17.1] %LV, respectively, p = 0.008). During follow-up, 51.4% of patients with LGE ≥ 12.0 %LV experienced MACE, along with 20.9% of those with LGE ≤ 12.0 %LV (log-rank p = 0.001). According to multivariate analysis, LGE extent more than 12.0 %LV was independently associated with MACE (adjusted hazard ratio, 6.71; 95% confidence interval, 2.54–17.74; p < 0.001).
Conclusion
In NICM patients with significantly reduced LV systolic function, the extent of LGE is a strong predictor for longterm adverse cardiac outcomes. Event-free survival was well discriminated with an LGE cutoff value of 12.0 %LV in these patients.
9.Diabetes Fact Sheets in Korea, 2020: An Appraisal of Current Status
Chan-Hee JUNG ; Jang Won SON ; Shinae KANG ; Won Jun KIM ; Hun-Sung KIM ; Hae Soon KIM ; Mihae SEO ; Hye-Jung SHIN ; Seong-Su LEE ; Su Jin JEONG ; Yongin CHO ; Seung Jin HAN ; Hyang Mi JANG ; Mira RHO ; Shinbi LEE ; Mihyun KOO ; Been YOO ; Jung-Wha MOON ; Hye Young LEE ; Jae-Seung YUN ; Sun Young KIM ; Sung Rae KIM ; In-Kyung JEONG ; Ji-Oh MOK ; Kun Ho YOON
Diabetes & Metabolism Journal 2021;45(1):1-10
Background:
This study aimed to investigate the recent prevalence, management, and comorbidities of diabetes among Korean adults aged ≥30 years by analyzing nationally representative data.
Methods:
This study used data from the Korea National Health and Nutrition Examination Survey from 2016 to 2018, and the percentage and total number of people ≥30 years of age with diabetes and impaired fasting glucose (IFG) were estimated.
Results:
In 2018, 13.8% of Korean adults aged ≥30 years had diabetes, and adults aged ≥65 years showed a prevalence rate of 28%. The prevalence of IFG was 26.9% in adults aged ≥30 years. From 2016 to 2018, 35% of the subjects with diabetes were not aware of their condition. Regarding comorbidities, 53.2% and 61.3% were obese and hypertensive, respectively, and 72% had hypercholesterolemia as defined by low-density lipoprotein cholesterol (LDL-C) ≥100 mg/dL in people with diabetes. Of the subjects with diabetes, 43.7% had both hypertension and hypercholesterolemia. With regard to glycemic control, only 28.3% reached the target level of <6.5%. Moreover, only 11.5% of subjects with diabetes met all three targets of glycosylated hemoglobin, blood pressure, and LDL-C. The percentage of energy intake from carbohydrates was higher in diabetes patients than in those without diabetes, while that from protein and fat was lower in subjects with diabetes.
Conclusion
The high prevalence and low control rate of diabetes and its comorbidities in Korean adults were confirmed. More stringent efforts are needed to improve the comprehensive management of diabetes to reduce diabetes-related morbidity and mortality.
10.Free-Breathing Motion-Corrected Single-Shot Phase-Sensitive Inversion Recovery Late-Gadolinium-Enhancement Imaging: A Prospective Study of Image Quality in Patients with Hypertrophic Cardiomyopathy
Min Jae CHA ; Iksung CHO ; Joonhwa HONG ; Sang-Wook KIM ; Seung Yong SHIN ; Mun Young PAEK ; Xiaoming BI ; Sung Mok KIM
Korean Journal of Radiology 2021;22(7):1044-1053
Objective:
Motion-corrected averaging with a single-shot technique was introduced for faster acquisition of late-gadoliniumenhancement (LGE) cardiovascular magnetic resonance (CMR) imaging while free-breathing. We aimed to evaluate the image quality (IQ) of free-breathing motion-corrected single-shot LGE (moco-ss-LGE) in patients with hypertrophic cardiomyopathy (HCM).
Materials and Methods:
Between April and December 2019, 30 patients (23 men; median age, 48.5; interquartile range [IQR], 36.5–61.3) with HCM were prospectively enrolled. Breath-held single-shot LGE (bh-ss-LGE) and free-breathing mocoss-LGE images were acquired in random order on a 3T MR system. Semi-quantitative IQ scores, contrast-to-noise ratios (CNRs), and quantitative size of myocardial scar were assessed on pairs of bh-ss-LGE and moco-ss-LGE. The mean ± standard deviation of the parameters was obtained. The results were compared using the Wilcoxon signed-rank test.
Results:
The moco-ss-LGE images had better IQ scores than the bh-ss-LGE images (4.55 ± 0.55 vs. 3.68 ± 0.45, p < 0.001). The CNR of the scar to the remote myocardium (34.46 ± 11.85 vs. 26.13 ± 10.04, p < 0.001), scar to left ventricle (LV) cavity (13.09 ± 7.95 vs. 9.84 ± 6.65, p = 0.030), and LV cavity to remote myocardium (33.12 ± 15.53 vs. 22.69 ± 11.27, p < 0.001) were consistently greater for moco-ss-LGE images than for bh-ss-LGE images. Measurements of scar size did not differ significantly between LGE pairs using the following three different quantification methods: 1) full width at half-maximum method; 23.84 ± 12.88% vs. 24.05 ± 12.81% (p = 0.820), 2) 6-standard deviation method, 15.14 ± 10.78% vs. 15.99 ± 10.99% (p = 0.186), and 3) 3-standard deviation method; 36.51 ± 17.60% vs. 37.50 ± 17.90% (p = 0.785).
Conclusion
Motion-corrected averaging may allow for superior IQ and CNRs with free-breathing in single-shot LGE imaging, with a herald of free-breathing moco-ss-LGE as the scar imaging technique of choice for clinical practice.

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