1.Safety and Efficacy of Pivot-Balloon for Severe Tricuspid Regurgitation:The First-in-Man Experiences
Eun Kyoung KIM ; Min-Ku CHON ; Hyun-Sook KIM ; Yong-Hyun PARK ; Sang-Hyun LEE ; Ki Seok CHOO ; Hyung Gon JE ; Dae-Hee KIM ; Tae Oh KIM ; Yoon Seok KOH ; Jae-Hyeong PARK ; Jae-Hwan LEE ; Young Jin CHOI ; Eun Seok SHIN ; Hyuck-Jun YOON ; Seung-Whan LEE ; Joo-Yong HAHN
Korean Circulation Journal 2025;55(1):20-31
		                        		
		                        			 Background and Objectives:
		                        			Among various emerging catheter-based treatments for severe tricuspid regurgitation (TR), the spacer device can reduce the regurgitation orifice without manipulating the valve leaflet. However, its clinical application has been hampered by traumatic anchoring to the myocardium and the coaxial alignment of the balloon resulting in insufficient TR reduction. This study aimed to evaluate the early-stage safety, technical feasibility, and preliminary efficacy of the novel atraumatic vertical spacer in patients with isolated severe TR. 
		                        		
		                        			Methods:
		                        			All procedures were guided by fluoroscopy and transthoracic echocardiography.The maximum device placement time with an inflated balloon was 24 hours. Changes in the amount of TR, right ventricular function, and patient hemodynamics were measured during balloon deployment. 
		                        		
		                        			Results:
		                        			A total of 7 patients (median age 74), underwent successful device implantation without procedure-related complications. During balloon inflation (median 25 minutes), there were no symptoms or signs indicative of TR intolerance. TR was reduced by 1 grade or greater in all patients, with 2 patients exhibiting a reduction of 3 grades, from torrential TR to a moderate degree. Mild TR after balloon inflation was achieved in 3 patients with baseline severe TR. The TR reduction observed during initial balloon deployment was sustained during the subsequent balloon maintenance period. 
		                        		
		                        			Conclusions
		                        			The Pivot-balloon procedure was safe, technically feasible, and effective in reducing TR in patients with severe TR. No periprocedural complications or adverse cardiovascular events were reported during device placement with TR reduction observed in all patients. However, longer-term follow-up is needed to confirm safety and treatment effect. 
		                        		
		                        		
		                        		
		                        	
2.Safety and Efficacy of Pivot-Balloon for Severe Tricuspid Regurgitation:The First-in-Man Experiences
Eun Kyoung KIM ; Min-Ku CHON ; Hyun-Sook KIM ; Yong-Hyun PARK ; Sang-Hyun LEE ; Ki Seok CHOO ; Hyung Gon JE ; Dae-Hee KIM ; Tae Oh KIM ; Yoon Seok KOH ; Jae-Hyeong PARK ; Jae-Hwan LEE ; Young Jin CHOI ; Eun Seok SHIN ; Hyuck-Jun YOON ; Seung-Whan LEE ; Joo-Yong HAHN
Korean Circulation Journal 2025;55(1):20-31
		                        		
		                        			 Background and Objectives:
		                        			Among various emerging catheter-based treatments for severe tricuspid regurgitation (TR), the spacer device can reduce the regurgitation orifice without manipulating the valve leaflet. However, its clinical application has been hampered by traumatic anchoring to the myocardium and the coaxial alignment of the balloon resulting in insufficient TR reduction. This study aimed to evaluate the early-stage safety, technical feasibility, and preliminary efficacy of the novel atraumatic vertical spacer in patients with isolated severe TR. 
		                        		
		                        			Methods:
		                        			All procedures were guided by fluoroscopy and transthoracic echocardiography.The maximum device placement time with an inflated balloon was 24 hours. Changes in the amount of TR, right ventricular function, and patient hemodynamics were measured during balloon deployment. 
		                        		
		                        			Results:
		                        			A total of 7 patients (median age 74), underwent successful device implantation without procedure-related complications. During balloon inflation (median 25 minutes), there were no symptoms or signs indicative of TR intolerance. TR was reduced by 1 grade or greater in all patients, with 2 patients exhibiting a reduction of 3 grades, from torrential TR to a moderate degree. Mild TR after balloon inflation was achieved in 3 patients with baseline severe TR. The TR reduction observed during initial balloon deployment was sustained during the subsequent balloon maintenance period. 
		                        		
		                        			Conclusions
		                        			The Pivot-balloon procedure was safe, technically feasible, and effective in reducing TR in patients with severe TR. No periprocedural complications or adverse cardiovascular events were reported during device placement with TR reduction observed in all patients. However, longer-term follow-up is needed to confirm safety and treatment effect. 
		                        		
		                        		
		                        		
		                        	
3.Safety and Efficacy of Pivot-Balloon for Severe Tricuspid Regurgitation:The First-in-Man Experiences
Eun Kyoung KIM ; Min-Ku CHON ; Hyun-Sook KIM ; Yong-Hyun PARK ; Sang-Hyun LEE ; Ki Seok CHOO ; Hyung Gon JE ; Dae-Hee KIM ; Tae Oh KIM ; Yoon Seok KOH ; Jae-Hyeong PARK ; Jae-Hwan LEE ; Young Jin CHOI ; Eun Seok SHIN ; Hyuck-Jun YOON ; Seung-Whan LEE ; Joo-Yong HAHN
Korean Circulation Journal 2025;55(1):20-31
		                        		
		                        			 Background and Objectives:
		                        			Among various emerging catheter-based treatments for severe tricuspid regurgitation (TR), the spacer device can reduce the regurgitation orifice without manipulating the valve leaflet. However, its clinical application has been hampered by traumatic anchoring to the myocardium and the coaxial alignment of the balloon resulting in insufficient TR reduction. This study aimed to evaluate the early-stage safety, technical feasibility, and preliminary efficacy of the novel atraumatic vertical spacer in patients with isolated severe TR. 
		                        		
		                        			Methods:
		                        			All procedures were guided by fluoroscopy and transthoracic echocardiography.The maximum device placement time with an inflated balloon was 24 hours. Changes in the amount of TR, right ventricular function, and patient hemodynamics were measured during balloon deployment. 
		                        		
		                        			Results:
		                        			A total of 7 patients (median age 74), underwent successful device implantation without procedure-related complications. During balloon inflation (median 25 minutes), there were no symptoms or signs indicative of TR intolerance. TR was reduced by 1 grade or greater in all patients, with 2 patients exhibiting a reduction of 3 grades, from torrential TR to a moderate degree. Mild TR after balloon inflation was achieved in 3 patients with baseline severe TR. The TR reduction observed during initial balloon deployment was sustained during the subsequent balloon maintenance period. 
		                        		
		                        			Conclusions
		                        			The Pivot-balloon procedure was safe, technically feasible, and effective in reducing TR in patients with severe TR. No periprocedural complications or adverse cardiovascular events were reported during device placement with TR reduction observed in all patients. However, longer-term follow-up is needed to confirm safety and treatment effect. 
		                        		
		                        		
		                        		
		                        	
4.Safety and Efficacy of Pivot-Balloon for Severe Tricuspid Regurgitation:The First-in-Man Experiences
Eun Kyoung KIM ; Min-Ku CHON ; Hyun-Sook KIM ; Yong-Hyun PARK ; Sang-Hyun LEE ; Ki Seok CHOO ; Hyung Gon JE ; Dae-Hee KIM ; Tae Oh KIM ; Yoon Seok KOH ; Jae-Hyeong PARK ; Jae-Hwan LEE ; Young Jin CHOI ; Eun Seok SHIN ; Hyuck-Jun YOON ; Seung-Whan LEE ; Joo-Yong HAHN
Korean Circulation Journal 2025;55(1):20-31
		                        		
		                        			 Background and Objectives:
		                        			Among various emerging catheter-based treatments for severe tricuspid regurgitation (TR), the spacer device can reduce the regurgitation orifice without manipulating the valve leaflet. However, its clinical application has been hampered by traumatic anchoring to the myocardium and the coaxial alignment of the balloon resulting in insufficient TR reduction. This study aimed to evaluate the early-stage safety, technical feasibility, and preliminary efficacy of the novel atraumatic vertical spacer in patients with isolated severe TR. 
		                        		
		                        			Methods:
		                        			All procedures were guided by fluoroscopy and transthoracic echocardiography.The maximum device placement time with an inflated balloon was 24 hours. Changes in the amount of TR, right ventricular function, and patient hemodynamics were measured during balloon deployment. 
		                        		
		                        			Results:
		                        			A total of 7 patients (median age 74), underwent successful device implantation without procedure-related complications. During balloon inflation (median 25 minutes), there were no symptoms or signs indicative of TR intolerance. TR was reduced by 1 grade or greater in all patients, with 2 patients exhibiting a reduction of 3 grades, from torrential TR to a moderate degree. Mild TR after balloon inflation was achieved in 3 patients with baseline severe TR. The TR reduction observed during initial balloon deployment was sustained during the subsequent balloon maintenance period. 
		                        		
		                        			Conclusions
		                        			The Pivot-balloon procedure was safe, technically feasible, and effective in reducing TR in patients with severe TR. No periprocedural complications or adverse cardiovascular events were reported during device placement with TR reduction observed in all patients. However, longer-term follow-up is needed to confirm safety and treatment effect. 
		                        		
		                        		
		                        		
		                        	
5.Sex Differences in Chronic Cough Epidemiology: The Korean Cough Study Group
Jiyeon KANG ; Woo Jung SEO ; Jieun KANG ; Jung Gon KIM ; Sung Jun CHUNG ; Hyung Koo KANG ; Sung-Soon LEE ; Tai Joon AN ; Hyonsoo JOO ; Hyun LEE ; Youlim KIM ; Ina JEONG ; Jinkyeong PARK ; Sung-Kyoung KIM ; Jong-Wook SHIN ; Chin Kook RHEE ; Yee Hyung KIM ; Kyung Hoon MIN ; Ji-Yong MOON ; Deog Kyeom KIM ; Seung Hun JANG ; Kwang Ha YOO ; Jin Woo KIM ; Hyoung Kyu YOON ; Hyeon-Kyoung KOO
Journal of Korean Medical Science 2024;39(38):e273-
		                        		
		                        			 Background:
		                        			Chronic cough is a common symptom encountered by healthcare practitioners.The global prevalence of chronic cough is 9.6%, with a female predominance. The aim of our study is to reveal the sex differences in prevalence and severity of chronic cough in South Korea, stratified by age and etiology. 
		                        		
		                        			Methods:
		                        			This study included adult patients with chronic cough who were recruited from 19 respiratory centers in South Korea. Patients completed the cough numeric rating scale (NRS) and COugh Assessment Test (COAT) questionnaire to assess the severity and multidimensional impact of cough. 
		                        		
		                        			Results:
		                        			Among the 625 patients, 419 (67.0%) were females, with a male-to-female ratio of 1:2.03. The mean age was 49.4 years, and the median duration of cough was 12 weeks. The mean NRS and COAT scores were 5.5 ± 1.8 and 9.5 ± 3.6, respectively. Female patients were older (45.3 ± 15.4 vs. 51.6 ± 15.2, P < 0.001) and more likely to have asthma/cough variant asthma (CVA) (26.7% vs. 40.8%, P = 0.001) than male patients. There was no difference in the duration or severity of cough between sexes, regardless of the cause. The male-tofemale ratio was lower for upper airway cough syndrome (UACS), asthma/CVA, and gastroesophageal reflux disease (GERD), but not for eosinophilic bronchitis (EB) or unexplained cough. The mean age of female patients was higher in UACS and asthma/CVA, but not in EB, GERD, or unexplained cough. The majority (24.2%) fell within the age category of 50s. The proportion of females with cough increased with age, with a significant rise in the 50s, 60s, and 70–89 age groups. The severity of cough decreased in the 50s, 60s, and 70–89 age groups, with no significant sex differences within the same age group. 
		                        		
		                        			Conclusion
		                        			The sex disparities in prevalence and severity of cough varied significantly depending on the age category and etiology. Understanding the specific sex-based difference could enhance comprehension of cough-related pathophysiology and treatment strategies. 
		                        		
		                        		
		                        		
		                        	
6.Effect of Cognitive Behavioral and Motivational Enhancement Therapy Based Psychoeducation With Mindfulness Meditation on Hazardous Drinking and Motivation for Change
So-Byuk SON ; Seung-Gon KIM ; Eun Hyun SEO ; Hyung-Jun YOON
Journal of the Korean Society of Biological Therapies in Psychiatry 2024;30(1):17-27
		                        		
		                        			 Objectives:
		                        			The aim of this study was to examine the effect of cognitive behavioral therapy (CBT) and motivational enhancement therapy (MET) based psychoeducation with mindfulness meditation (PMM) on hazardous drinking (HD) and motivation for change. 
		                        		
		                        			Methods:
		                        			The participants were people who received order of lecture due to drunk driving. A total of 75 subjects participated in 6-session CBT/MET based PMM for 3 weeks as order of lecture program. Age, sex, and alcohol related problems (physical symptoms, occupational problem, economic difficulty, use of mental health service, and family conflict), HD, motivation for change and insight into HD, and depressive symptoms were assessed. 
		                        		
		                        			Results:
		                        			Compared with before the order of lecture program, the portion of those with HD significantly decreased (86.7% to 50.7%, pConclusions
		                        			This study demonstrated significant effects of CBT/MET based PMM on HD and motivation for change in drunk drivers. Our findings suggest that integrating approaches from CBT, MET, and mindfulness meditation can contribute to preventing and reducing HD. 
		                        		
		                        		
		                        		
		                        	
7.Imbalance in the spinal serotonergic pathway induces aggravation of mechanical allodynia and microglial activation in carrageenan inflammation
Junxiu JIN ; Dong Ho KANG ; Jin JEON ; Hyung Gon LEE ; Woong Mo KIM ; Myung Ha YOON ; Jeong Il CHOI
The Korean Journal of Pain 2023;36(1):51-59
		                        		
		                        			 Background:
		                        			This study investigated the effect of an excess and a deficit of spinal 5-hydroxytryptamine (5-HT) on the mechanical allodynia and neuroglia activation in a rodent pain model of carrageenan inflammation. 
		                        		
		                        			Methods:
		                        			Male Sprague–Dawley rats were implanted with an intrathecal (i.t.) catheter to administer the drug. To induce an excess or deficit of 5-HT in the spinal cord, animals were given either three i.t. 5-HT injections at 24-hour intervals or a single i.t. injection of 5,7-dihydroxytryptamine (5,7-DHT) before carrageenan inflammation.Mechanical allodynia was measured using the von Frey test for 0–4 hours (early phase) and 24–28 hours (late phase) after carrageenan injection. The changes in the activation of microglia and astrocyte were examined using immunofluorescence of the dorsal horn of the lumbar spinal cord. 
		                        		
		                        			Results:
		                        			Both an excess and a deficit of spinal 5-HT had no or a minimal effect on the intensity of mechanical allodynia during the early phase but prevented the attenuation of mechanical allodynia during the late phase, which was observed in animals not treated with i.t. 5-HT or 5,7-DHT. Animals with an excess or deficit of 5-HT showed stronger activation of microglia, but not astrocyte, during the early and late phases, than did normal animals. 
		                        		
		                        			Conclusions
		                        			Imbalance in the descending 5-HT pathway in the spinal cord could aggravate the mechanical allodynia and enhance the activation of microglia, suggesting that the spinal 5-HT pathway plays an essential role in maintaining the nociceptive processing in balance between facilitation and inhibition in inflammatory pain caused by carrageenan inflammation. 
		                        		
		                        		
		                        		
		                        	
8.Successful Early Lamotrigine and Aripiprazole Augmentation of Clomipramine in Severe Obsessive-compulsive Disorder
Eun Hyun SEO ; Seung-Gon KIM ; Jae-Hon LEE ; Hyung-Jun YOON
Clinical Psychopharmacology and Neuroscience 2023;21(3):604-608
		                        		
		                        			
		                        			 Lamotrigine and aripiprazole have shown efficacy as augmentation agents of serotonin reuptake inhibitors for treatment-resistant obsessive-compulsive disorder (OCD). To date, the efficacy of lamotrigine/aripiprazole augmentation has not been reported in OCD treatment. Herein, we report the case of a 37-year-old male with severe OCD and comorbid depression whose symptoms markedly improved after low-dose lamotrigine/aripiprazole augmentation to clomipramine.Our report suggests that early glutamatergic/antipsychotic augmentation contributes to rapid remission of OCD symptoms. 
		                        		
		                        		
		                        		
		                        	
9.Hazardous Drinking and Its Association With Smoking and Ego-Resiliency in Medical Students
Joo-Hyung KIM ; Seung-Gon KIM ; Eun Hyun SEO ; Hyung-Jun YOON
Journal of the Korean Society of Biological Therapies in Psychiatry 2023;29(2):25-34
		                        		
		                        			 Objectives:
		                        			The aim of this study was to investigate the prevalence of hazardous drinking (HD) and its association with sociodemographic factors, smoking, social anxiety, self-esteem, and ego-resiliency in medical students. 
		                        		
		                        			Methods:
		                        			A total of 408 medical students were included in this study. Data were collected by self-administered questionnaire, and HD was assessed by Alcohol Use Disorder Identification Test (AUDIT). The HD and non-HD group were defined using the AUDIT score 10 for male and 6 for female as a cut-off, respectively. Multiple logistic regression analyses were carried out to examine the impact of sociodemographic factors, smoking, social anxiety, self-esteem, and ego-resiliency on HD. 
		                        		
		                        			Results:
		                        			A total of 192 participants (47.1%) were identified as having HD. Frequency of smoking and the severity of social anxiety were significantly higher in HD group than non-HD group. Meanwhile, the levels of self-esteem and egoresiliency were significantly lower than HD group than non-HD group. In multiple logistic regression, smoking was associated with a higher risk of HD, whereas ego-resiliency and age were associated with a lower risk of HD. Compared to the high level of subjective socioeconomic status, both middle and low level were associated with a lower risk of HD. 
		                        		
		                        			Conclusions
		                        			HD among medical students was quite common and associated with smoking, ego-resiliency, age, and level of subjective socioeconomic status. Strong efforts to improve smoking cessation and ego-resiliency, as well as education for HD in medical schools, is needed to reduce the harmful effects of alcohol. 
		                        		
		                        		
		                        		
		                        	
10.Psychosocial Factors Influencing Quality of Life Among Medical Students
Eun Hyun SEO ; Seung-Gon KIM ; Jae-Hon LEE ; Chandlee C. DICKEY ; Mella Y. KIM ; Ravneet Kaur GHUMMAN ; Hyung-Jun YOON
Psychiatry Investigation 2023;20(11):1077-1085
		                        		
		                        			 Objective:
		                        			This study investigated the influence of psychosocial factors on medical students’ quality of life (QOL). 
		                        		
		                        			Methods:
		                        			A total of 408 medical students participated in this study. We collected data on participants’ sociodemographic details, symptoms of depression and Internet addiction, self-esteem, social support, and QOL. QOL was assessed using the World Health Organization Quality of Life-Abbreviated form, which has four domains (physical health, psychological health, social relationships, and environment). A stepwise multiple linear regression model was constructed to identify factors’ independent impact on QOL. 
		                        		
		                        			Results:
		                        			Higher levels of depression and Internet addiction were associated with lower scores in all domains of QOL, whereas higher levels of self-esteem and social support were associated with higher scores. Being in third-year versus first-year was associated with higher scores in the physical health and environment domains. Living alone or in dormitories, low or middle socioeconomic status, and insufficient or moderate pocket money were associated with lower scores in the environment domain. Additionally, female students displayed significantly lower scores for physical health, psychological health, and environment than male students, but not for social relationships. There were significant differences in certain domains of QOL due to sociodemographic factors. 
		                        		
		                        			Conclusion
		                        			This study demonstrates the psychosocial factors influencing medical students’ QOL. Educational strategies focusing on strengthening self-esteem and social support as well as preventing depression and Internet addiction may contribute to improving medical students’ QOL. 
		                        		
		                        		
		                        		
		                        	
            
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