1.Home Bioelectrical Impedance Analysis Management System in Patients With Heart Failure: Rationale and Study Design
Min Gyu KONG ; Inki MOON ; Hye-Sun SEO ; Jon SUH ; Jah Yeon CHOI ; Jin Oh NA ; Eung Ju KIM
International Journal of Heart Failure 2024;6(1):22-27
Body fluid monitoring and management are essential to control dyspnea and prevent re-hospitalization in patients with chronic heart failure (HF). There are several methods to estimate and monitor patient’s volume status, such as symptoms, signs, body weight, and implantable devices. However, these methods might be difficult to use for reasons that are slow to reflect body water change, inaccurate in specific patients’ condition, or invasive. Bioelectrical impedance analysis (BIA) is a novel method for body water monitoring in patients with HF, and the value in prognosis has been proven in previous studies. We aim to determine the efficacy and safety of home BIA body water monitoring-guided HF treatment in patients with chronic HF. This multi-center, open-label, randomized control trial will enroll patients with HF who are taking loop diuretics. The home BIA group patients will be monitored for body water using a home BIA device and receive messages regarding their edema status and direction of additional diuretics usage or behavioral changes through the linked application system once weekly. The control group patients will receive the usual HF management. The primary endpoint is the change in N-terminal prohormone of brain natriuretic peptide levels from baseline after 12 weeks. This trial will provide crucial evidence for patient management with a novel home BIA body water monitoring system in patients with HF.
2.Diagnosis of Unruptured Intracranial Aneurysms Using Proton-Density Magnetic Resonance Angiography: A Comparison With High-Resolution Time-of-Flight Magnetic Resonance Angiography
Pae Sun SUH ; Seung Chai JUNG ; Hye Hyeon MOON ; Yun Hwa ROH ; Yunsun SONG ; Minjae KIM ; Jungbok LEE ; Keum Mi CHOI
Korean Journal of Radiology 2024;25(6):575-588
Objective:
Differentiating intracranial aneurysms from normal variants using CT angiography (CTA) or MR angiography (MRA) poses significant challenges. This study aimed to evaluate the efficacy of proton-density MRA (PD-MRA) compared to highresolution time-of-flight MRA (HR-MRA) in diagnosing aneurysms among patients with indeterminate findings on conventional CTA or MRA.
Materials and Methods:
In this retrospective analysis, we included patients who underwent both PD-MRA and HR-MRA from August 2020 to July 2022 to assess lesions deemed indeterminate on prior conventional CTA or MRA examinations. Three experienced neuroradiologists independently reviewed the lesions using HR-MRA and PD-MRA with reconstructed voxel sizes of 0.253 mm3 or 0.23 mm3 , respectively. A neurointerventionist established the gold standard with digital subtraction angiography.We compared the performance of HR-MRA, PD-MRA (0.253 -mm3 voxel), and PD-MRA (0.23 -mm3 voxel) in diagnosing aneurysms, both per lesion and per patient. The Fleiss kappa statistic was used to calculate inter-reader agreement.
Results:
The study involved 109 patients (average age 57.4 ± 11.0 years; male:female ratio, 11:98) with 141 indeterminate lesions. Of these, 78 lesions (55.3%) in 69 patients were confirmed as aneurysms by the reference standard. PD-MRA (0.253 -mm3voxel) exhibited significantly higher per-lesion diagnostic performance compared to HR-MRA across all three readers: sensitivity ranged from 87.2%–91.0% versus 66.7%–70.5%; specificity from 93.7%–96.8% versus 58.7%–68.3%; and accuracy from 90.8%–92.9% versus 63.8%–69.5% (P ≤ 0.003). Furthermore, PD-MRA (0.253 -mm3 voxel) demonstrated significantly superior per-patient specificity and accuracy compared to HR-MRA across all evaluators (P ≤ 0.013). The diagnostic accuracy of PD-MRA (0.23 -mm3 voxel) surpassed that of HR-MRA and was comparable to PD-MRA (0.253 -mm3 voxel). The kappa values for inter-reader agreements were significantly higher in PD-MRA (0.820–0.938) than in HR-MRA (0.447–0.510).
Conclusion
PD-MRA outperformed HR-MRA in diagnostic accuracy and demonstrated almost perfect inter-reader consistency in identifying intracranial aneurysms among patients with lesions initially indeterminate on CTA or MRA.
3.A Case of Palisaded Neutrophilic and Granulomatous Dermatitis Associated with an Initial Presentation in Ankylosing Spondylitis
Young Sun SUH ; Eui Chang JUNG ; Yun Sun MOON ; Seung-Geun LEE ; Hyun-Ok KIM
Annals of Dermatology 2023;35(Suppl1):S34-S37
Palisaded neutrophilic and granulomatous dermatitis (PNGD) is an inflammatory dermatosis associated with systemic immune-mediated diseases such as rheumatoid arthritis, systemic sclerosis, lupus erythematosus, and ulcerative colitis. Histologically, serial development of leukocytoclastic vasculitis is shown from an early stage, which can progress to palisading granuloma in the fully developed stage and to fibrosis in the final stage. A 32-yearold man presented with ankylosing spondylitis showing multiple erythematous papules on his fingers, elbows, knees, and left auricle. Histologic examination from his skin lesion revealed a perforating palisading granuloma with leukocytoclastic vasculitis, which was consistent with PNGD. Therefore, this study reported a case of PNGD accompanied by ankylosing spondylitis as an initial presentation.
4.Temporal Trend of the Incidence and Characteristics of Renal Infarction:Korean Nationwide Population Study
Dong-Eon KIM ; Inki MOON ; Suyeong PARK ; Minae PARK ; Sojeong PARK ; Seong Soon KWON ; Min Gyu KONG ; Hyun Woo PARK ; Hyung Oh CHOI ; Hye-Sun SEO ; Yoon Haeng CHO ; Nae Hee LEE ; Jon SUH
Journal of Korean Medical Science 2023;38(31):e239-
Background:
Large-scale studies about epidemiologic characteristics of renal infarction (RI) are few. In this study, we aimed to analyze the incidence and prevalence of RI with comorbidities in the South Korean population.
Methods:
We investigated the medical history of the entire South Korean adult population between 2013 and 2019 using the National Health Insurance Service database (n = 51,849,591 in 2019). Diagnosis of RI comorbidities were confirmed with International Classification of Disease, Tenth Revision, Clinical Modification codes. Epidemiologic characteristics, distribution of comorbidities according to etiologic mechanisms, and trend of antithrombotic agents were estimated.
Results:
During the 7-years, 10,496 patients were newly diagnosed with RI. The incidence rate increased from 2.68 to 3.06 per 100,000 person-years during the study period.The incidence rate of RI increased with age peaking in the 70s with 1.41 times male predominance. The most common comorbidity was hypertension, followed by dyslipidemia and diabetes mellitus. Regarding etiologic risk factor distribution, high embolic risk group, renovascular disease group, and hypercoagulable state group accounted for 16.6%, 29.1%, and 13.7% on average, respectively. For the antithrombotic treatment of RI, the prescription of antiplatelet agent gradually decreased from 17.0% to 13.0% while that of anticoagulation agent was maintained around 35%. The proportion of non-vitamin K antagonist oral anticoagulants remarkably increased from only 1.4% to 17.6%.
Conclusion
Considering the progressively increasing incidence of RI and high prevalence of coexisting risk factors, constant efforts to raise awareness of the disease are necessary. The current epidemiologic investigation of RI would be the stepping-stone to establishing future studies about clinical outcomes and optimal treatment strategies.
5.Clinical efficacy of angiotensin receptor-neprilysin inhibitor in de novo heart failure with reduced ejection fraction
Su Yeong PARK ; Min Gyu KONG ; Inki MOON ; Hyun Woo PARK ; Hyung-Oh CHOI ; Hye Sun SEO ; Yoon Haeng CHO ; Nae-Hee LEE ; Kwan Yong LEE ; Ho-Jun JANG ; Je Sang KIM ; Ik Jun CHOI ; Jon SUH
The Korean Journal of Internal Medicine 2023;38(5):692-703
Background/Aims:
We aimed to analyze the efficacy of angiotensin receptor-neprilysin inhibitor (ARNI) by the disease course of heart failure (HF).
Methods:
We evaluated 227 patients with HF in a multi-center retrospective cohort that included those with left ventricular ejection fraction (LVEF) ≤ 40% undergoing ARNI treatment. The patients were divided into patients with newly diagnosed HF with ARNI treatment initiated within 6 months of diagnosis (de novo HF group) and those who were diagnosed or admitted for HF exacerbation for more than 6 months prior to initiation of ARNI treatment (prior HF group). The primary outcome was a composite of cardiovascular death and worsening HF, including hospitalization or an emergency visit for HF aggravation within 12 months.
Results:
No significant differences in baseline characteristics were reported between the de novo and prior HF groups. The prior HF group was significantly associated with a higher primary outcome (23.9 vs. 9.4%) than the de novo HF group (adjusted hazard ratio 2.52, 95% confidence interval 1.06–5.96, p = 0.036), although on a higher initial dose. The de novo HF group showed better LVEF improvement after 1 year (12.0% vs 7.4%, p = 0.010). Further, the discontinuation rate of diuretics after 1 year was numerically higher in the de novo group than the prior HF group (34.4 vs 18.5%, p = 0.064).
Conclusions
The de novo HF group had a lower risk of the primary composite outcome than the prior HF group in patients with reduced ejection fraction who were treated with ARNI.
6.Comparison of Clinical Outcomes of Long Stent Implantation with First- and Second-Generation Drug-Eluting Stents Following Rotational Atherectomy
Dongeon KIM ; Suyeong PARK ; Inki MOON ; Min Gyu KONG ; Hyun Woo PARK ; Hyung Oh CHOI ; Hye-Sun SEO ; Jon SUH ; Nae-Hee LEE ; Yoon Haeng CHO
Soonchunhyang Medical Science 2022;28(1):15-22
Objective:
Rotational atherectomy (RA) and newly developed second-generation drug-eluting stent (DES) support the strategy of longer stent deployment in comparison to short stent implantations in the past. However, studies analyzing the outcome of patients who received long stent implantation following RA are few in number. The present study compared the clinical outcomes of patients with the coronary arterial disease (CAD) who underwent RA with long stent implantation using first- and second-generation DES.
Methods:
A retrospective cohort study was performed at the single center from March 2003 to October 2019. Eighty-seven patients with CAD who underwent RA with ≥32 mm long stent implantation were enrolled in the study and divided into two groups according to the type of DES. As a primary endpoint, the cumulative 2-year incidence of major adverse cardiac events (MACE) including death, myocardial infarction (MI), target vessel revascularization, and stent thrombosis (ST) was compared by DES type. Adjusted interaction between the type of stent and clinical variables was estimated to determine the predictor variables of MACE.
Results:
The second-generation DES group was associated with a shorter procedure duration and more common usage of intravascular ultrasound in procedural characteristics. In the second-generation DES group, a trend toward a lower rate of MI and ST existed. All-cause mortality and cardiovascular mortality were not significantly different. When combined with MACE, we could identify a significant reduction in the second-generation DES group.
Conclusion
In comparison to the first-generation DES group, the second-generation DES group was associated with a lower rate of MACE for 2 years in patients who underwent RA with long stent implantation.
7.Comparison of Two Types of 1-L Polyethylene Glycol-ascorbic Acid as Colonoscopic Bowel Preparation: A Prospective Randomized Study
Suh Hyun CHOI ; Won Eui YOON ; Seung Hyuk KIM ; Hee Jun MYUNG ; Seo Hyun KIM ; Soon Oh SO ; Se Hun KIM ; Hyun Mi LEE ; Yeoun Jung OH ; Jeong Seop MOON ; Tae Yeong PARK ; You Sun KIM
The Korean Journal of Gastroenterology 2022;80(2):85-92
Background/Aims:
Recently, 1-L polyethylene glycol-ascorbic acid (PEG-Asc) has been used to reduce the volume of preparation agents in colonoscopy. This clinical trial aimed to compare the efficacy and safety of two types of 1-L PEG-Asc (CleanViewAL ® [Tae Joon Pharmaceutical Company, Seoul, Korea] and Plenvu ® [Norgine, Harefield, United Kingdom]) in average-aged adults.
Methods:
This study was a prospective, randomized, non-inferiority, open-label, phase 4 clinical trial. The primary endpoint was the efficacy evaluated using the Boston bowel preparation scale (BBPS), and the secondary endpoint was clinical safety.
Results:
In total, 173 patients were assigned to either the CleanViewAL ® (n=84) or Plenvu ® (n=89) group. Overall cleansing successes of 97.6% (82/84) and 98.8% (88/89) were achieved in the CleanViewAL ® group and in the Plenvu ® group, respectively, showing that CleanViewAL ® has similar bowel cleansing efficacy to Plenvu ® (95% CI, -0.052 to 0.027; p=0.207). The total BBPS score was 8.67±1.00 and 8.70±0.76 in the CleanViewAL ® group and Plenvu ® group, respectively (p=0.869). The most common adverse symptom was nausea, and no adverse symptoms requiring hospitalization were reported in either group. There were no cases of critical hypernatremia and liver dysfunction exceeding the common terminology criteria for adverse events grade I. An overall satisfaction score (scale of 1 to 10) showed no difference between the two groups (p=0.289). However, the CleanViewAL ® group showed a higher taste satisfaction score (scale of 1 to 5) than the Plenvu ® group (CleanViewAL ® : 2.90±0.91, Plenvu ® : 2.60±0.86, p=0.028).
Conclusions
Both types of 1-L PEG-Asc, CleanViewAL ® and Plenvu ® , are effective and safe bowel cleansing agents in average-aged adults. CleanViewAL ® was preferred in terms of taste satisfaction.
8.Relationship between Stress-Coping and Personality in Patients with Bipolar and Depressive Disorders
Hyun Ju LIM ; Eunsoo MOON ; Hwagyu SUH ; Sun Kyeong YANG ; Je Min PARK ; Byung Dae LEE ; Young Min LEE ; Hee Jeong JEONG ; Soo Yeon KIM ; Kang Yoon LEE ; Young In CHUNG
Mood and Emotion 2021;19(2):35-46
Background:
Personality might be one of the important factors related to stress-coping in mood disorders. This study aimed to investigate the relationship between personality and stress-coping strategies in patients with bipolar and depressive disorders.
Methods:
A total of 195 patients diagnosed with bipolar and depressive disorders according to the criteria mentioned in Diagnostic and Statistical Manual of Mental disorders’ 5th edition were included. Pearson’s correlation and multiple regression analyses were used to analyze the relationship between personality, measured by Temperament and Character Inventory and NEO-Five Factor Inventory, and coping strategies, measured by Coping Inventory for Stressful Situations.
Results:
Self-directedness was reported to be positively associated with task-oriented coping in bipolar disorders, and harm avoidance was negatively associated with task-oriented coping in depressive disorders. Beck Depression Inventory score, neuroticism, and extroversion were found to be positively associated with emotion-oriented coping in bipolar disorders, and neuroticism was positively associated with emotion-oriented coping in depressive disorders. Extroversion was reported to be positively associated with avoidance-oriented coping in bipolar disorders, and extroversion, novelty seeking, and reward dependence were positively associated with avoidance-oriented coping in depressive disorders.
Conclusion
This study concluded that the relationship between personality and stress-coping strategies may vary based on the type of mood disorder that is diagnosed. The interaction between personality and stress-coping might be considered for the modification of coping strategies in mood disorders.
9.Efficacy and Safety of Treatment with Quadruple Oral Hypoglycemic Agents in Uncontrolled Type 2 Diabetes Mellitus: A Multi-Center, Retrospective, Observational Study
Jun Sung MOON ; Sunghwan SUH ; Sang Soo KIM ; Heung Yong JIN ; Jeong Mi KIM ; Min Hee JANG ; Kyung Ae LEE ; Ju Hyung LEE ; Seung Min CHUNG ; Young Sang LYU ; Jin Hwa KIM ; Sang Yong KIM ; Jung Eun JANG ; Tae Nyun KIM ; Sung Woo KIM ; Eonju JEON ; Nan Hee CHO ; Mi-Kyung KIM ; Hye Soon KIM ; Il Seong NAM-GOONG ; Eun Sook KIM ; Jin Ook CHUNG ; Dong-Hyeok CHO ; Chang Won LEE ; Young Il KIM ; Dong Jin CHUNG ; Kyu Chang WON ; In Joo KIM ; Tae Sun PARK ; Duk Kyu KIM ; Hosang SHON
Diabetes & Metabolism Journal 2021;45(5):675-683
Only few studies have shown the efficacy and safety of glucose-control strategies using the quadruple drug combination. Therefore, the aim of the present study was to investigate the usefulness of the quadruple combination therapy with oral hypoglycemic agents (OHAs) in patients with uncontrolled type 2 diabetes mellitus (T2DM). From March 2014 to December 2018, data of patients with T2DM, who were treated with quadruple hypoglycemic medications for over 12 months in 11 hospitals in South Korea, were reviewed retrospectively. We compared glycosylated hemoglobin (HbA1c) levels before and 12 months after quadruple treatment with OHAs. The safety, maintenance rate, and therapeutic patterns after failure of the quadruple therapy were also evaluated. In total, 357 patients were enrolled for quadruple OHA therapy, and the baseline HbA1c level was 9.0%±1.3% (74.9±14.1 mmol/mol). After 12 months, 270 patients (75.6%) adhered to the quadruple therapy and HbA1c was significantly reduced from 8.9%±1.2% to 7.8%±1.3% (mean change, −1.1%±1.2%; This study shows the therapeutic efficacy of the quadruple OHA regimen T2DM and demonstrates that it can be an option for the management of T2DM patients who cannot use insulin or reject injectable therapy.
10.Patient Perspectives and Preferences Regarding Gout and Gout Management:Impact on Adherence
Min Kyung CHUNG ; Sung Soo KIM ; Yun-Hong CHEON ; Seung-Jae HONG ; Hyo Jin CHOI ; Mi Ryoung SEO ; Jiwon HWANG ; Joong Kyong AHN ; Sang-Heon LEE ; Hong Ki MIN ; Hoon-Suk CHA ; Shin-Seok LEE ; Jennifer LEE ; Ki Won MOON ; Chang-Keun LEE ; Hyun-Ok KIM ; Young Sun SUH ; Seung-Cheol SHIM ; Seong Wook KANG ; Jinhyun KIM ; Sang Tae CHOI ; Jung Soo SONG ; Jisoo LEE ;
Journal of Korean Medical Science 2021;36(32):e208-
Background:
Patient-centered management is becoming increasingly important in gout, but there are limited studies exploring patients' perspectives and preferences. We aimed to investigate patients' perspectives and preferences regarding gout and gout management, and their impacts on adherence to urate lowering therapy (ULT).
Methods:
A paper-based survey was performed in patients with gout seen at the rheumatology outpatient clinics of 16 tertiary hospitals. The survey included questions regarding demographics, comorbidities, gout attacks, current treatment and adherence, and patients' perspectives and preferences regarding gout and gout management. Multivariate regression analysis was performed to determine the factors associated with ULT adherence.
Results:
Of 809 surveyed patients with gout, 755 (94.5%) were using ULT. Among those using ULT, 89.1% had ≥ 80% adherence to ULT. Majority of the patients knew management strategies to some extent (94.8%), perceived gout as a life-long disease (91.2%), and were making efforts toward practicing at least one lifestyle modification (89.2%). Most patients (71.9%) obtained information about gout management during their clinic visits.Approximately half of the patients (53.6%) preferred managing their disease with both ULT and lifestyle modification, 28.4% preferred ULT only, and 17.4% preferred lifestyle modification only. Adherence was better in patients with older age (odds ratio [OR], 1.03), those with better knowledge of gout management strategies (OR, 3.56), and those who had preference for ULT (OR, 2.07).
Conclusion
Patients' perspectives and management preferences had high impacts on adherence to ULT in gout. Consideration of patients' perspectives and preferences is important for achieving the desired clinical outcome in gout.

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