1.Oncological Outcomes in Men with Metastatic Castration-Resistant Prostate Cancer Treated with Enzalutamide with versus without Confirmatory Bone Scan
Chang Wook JEONG ; Jang Hee HAN ; Dong Deuk KWON ; Jae Young JOUNG ; Choung-Soo KIM ; Hanjong AHN ; Jun Hyuk HONG ; Tae-Hwan KIM ; Byung Ha CHUNG ; Seong Soo JEON ; Minyong KANG ; Sung Kyu HONG ; Tae Young JUNG ; Sung Woo PARK ; Seok Joong YUN ; Ji Yeol LEE ; Seung Hwan LEE ; Seok Ho KANG ; Cheol KWAK
Cancer Research and Treatment 2024;56(2):634-641
		                        		
		                        			 Purpose:
		                        			In men with metastatic castration-resistant prostate cancer (mCRPC), new bone lesions are sometimes not properly categorized through a confirmatory bone scan, and clinical significance of the test itself remains unclear. This study aimed to demonstrate the performance rate of confirmatory bone scans in a real-world setting and their prognostic impact in enzalutamide-treated mCRPC. 
		                        		
		                        			Materials and Methods:
		                        			Patients who received oral enzalutamide for mCRPC during 2014-2017 at 14 tertiary centers in Korea were included. Patients lacking imaging assessment data or insufficient drug exposure were excluded. The primary outcome was overall survival (OS). Secondary outcomes included performance rate of confirmatory bone scans in a real-world setting. Kaplan-Meier analysis and multivariate Cox regression analysis were performed. 
		                        		
		                        			Results:
		                        			Overall, 520 patients with mCRPC were enrolled (240 [26.2%] chemotherapy-naïve and 280 [53.2%] after chemotherapy). Among 352 responders, 92 patients (26.1%) showed new bone lesions in their early bone scan. Confirmatory bone scan was performed in 41 patients (44.6%), and it was associated with prolonged OS in the entire population (median, 30.9 vs. 19.7 months; p < 0.001), as well as in the chemotherapy-naïve (median, 47.2 vs. 20.5 months; p=0.011) and post-chemotherapy sub-groups (median, 25.5 vs. 18.0 months; p=0.006). Multivariate Cox regression showed that confirmatory bone scan performance was an independent prognostic factor for OS (hazard ratio 0.35, 95% confidence interval, 0.18 to 0.69; p=0.002). 
		                        		
		                        			Conclusion
		                        			Confirmatory bone scan performance was associated with prolonged OS. Thus, the premature discontinuation of enzalutamide without confirmatory bone scans should be discouraged. 
		                        		
		                        		
		                        		
		                        	
2.Safety and Effectiveness of Passeo-18 Lux Drug-Coated Balloon Catheter in Infrainguinal Endovascular Revascularization in the Korean Population:A Multicenter Post-Market Surveillance Study
Tae Won CHOI ; Je Hwan WON ; Hwan Jun JAE ; Yong Sun JEON ; Sang Woo PARK ; Gi-Young KO ; Nam Yeol YIM ; Jong Yun WON ; Chang Won KIM ; Jinoo KIM
Korean Journal of Radiology 2024;25(6):565-574
		                        		
		                        			 Objective:
		                        			To evaluate the safety and clinical outcomes of the Passeo-18 Lux drug-coated balloon (DCB) in endovascular revascularization procedures under real-world conditions in a Korean population with atherosclerotic disease of the infrainguinal arteries, including below-the-knee (BTK) arteries. 
		                        		
		                        			Materials and Methods:
		                        			Eight institutions in the Republic of Korea participated in this prospective, multicenter, single-arm, post-market surveillance study. Two hundred patients with Rutherford class 2–5 peripheral arterial disease and infrainguinal lesions suitable for endovascular treatment were competitively enrolled. Data were collected at baseline, the time of intervention, discharge, and 1-, 6-, 12-, and 24-month follow-up visits. The primary safety endpoint was freedom from major adverse events (MAE) within 6 months (except when limiting the time frame for procedure- or device-related mortality to within 30 days), and the primary effectiveness endpoint was freedom from clinically driven target lesion revascularization (CDTLR) within 12 months after the procedure. 
		                        		
		                        			Results:
		                        			A total of 197 patients with 332 target lesions were analyzed. Two-thirds of the patients had diabetes mellitus, and 41.6% had chronic limb-threatening ischemia. The median target lesion length was 100 mm (interquartile range: 56–133 mm).Of the target lesions, 35.2% were occlusions, and 14.8% were located in the BTK arteries. Rate of freedom from MAE was 97.9% at 6 months, and the rate of freedom from CD-TLR was 95.0% and 92.2% at 12 and 24 months, respectively. Subgroup analysis of 43 patients and 49 target lesions involving the BTK arteries showed rate of freedom from MAE of 92.8% at 6 months and rates of freedom from CD-TLR of 88.8% and 84.4% at 12 and 24 months, respectively. 
		                        		
		                        			Conclusion
		                        			The results of the present study, including the BTK subgroup analysis, showed outcomes comparable to those of other DCB studies, confirming the safety and effectiveness of Passeo-18 Lux DCB in the Korean population. 
		                        		
		                        		
		                        		
		                        	
3.Reaching New Heights: A Comprehensive Study of Hand Transplantations in Korea after Institutionalization of Hand Transplantation Law
Yo Han KIM ; Yun Rak CHOI ; Dong Jin JOO ; Woo Yeol BAEK ; Young Chul SUH ; Won Taek OH ; Jae Yong CHO ; Sang Chul LEE ; Sang Kyum KIM ; Hyang Joo RYU ; Kyung Ock JEON ; Won Jai LEE ; Jong Won HONG
Yonsei Medical Journal 2024;65(2):108-119
		                        		
		                        			 Purpose:
		                        			With the revision of the Organ and Transplantation Act in 2018, the hand has become legal as an area of transplantable organs in Korea. In January 2021, the first hand allotransplantation since legalization was successfully performed, and we have performed a total of three successful hand transplantation since then. By comparing and incorporating our experiences, this study aimed to provide a comprehensive reconstructive solution for hand amputation in Korea. 
		                        		
		                        			Materials and Methods:
		                        			Recipients were selected through a structured preoperative evaluation, and hand transplantations were performed at the distal forearm level. Postoperatively, patients were treated with three-drug immunosuppressive regimen, and functional outcomes were monitored. 
		                        		
		                        			Results:
		                        			The hand transplantations were performed without intraoperative complications. All patients had partial skin necrosis and underwent additional surgical procedures in 2 months after transplantation. After additional operations, no further severe complications were observed. Also, patients developed acute rejection within 3 months of surgery, but all resolved within 2 weeks after steroid pulse therapy. Motor and sensory function improved dramatically, and patients were very satisfied with the appearance and function of their transplanted hands. 
		                        		
		                        			Conclusion
		                        			Hand transplantation is a viable reconstructive option, and patients have shown positive functional and psychological outcomes. Although this study has limitations, such as the small number of patients and short follow-up period, we should focus on continued recovery of hand function, and be careful not to develop side effects from immunosuppressive drugs. Through the present study, we will continue to strive for a bright future regarding hand transplantation in Korea. 
		                        		
		                        		
		                        		
		                        	
4.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.
		                        		
		                        		
		                        		
		                        	
5.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.
		                        		
		                        		
		                        		
		                        	
6.Switching Antipsychotics to Blonanserin in Patients with Schizophrenia: An Open-label, Prospective, Multicenter Study
Young Sup WOO ; Bo Hyun YOON ; Bong Hee JEON ; Jeong Seok SEO ; Beomwoo NAM ; Sang Yeol LEE ; Young Myo JAE ; Sae Heon JANG ; Hun Jeong EUN ; Seung Hee WON ; Kwanghun LEE ; Jonghun LEE ; Won Myong BAHK
Clinical Psychopharmacology and Neuroscience 2019;17(3):423-431
		                        		
		                        			
		                        			OBJECTIVE: This study was performed to investigate the efficacy and tolerability of blonanserin in schizophrenic patients who were previously treated with other antipsychotics but, due to insufficient response, were switched to blonanserin. METHODS: A total of 52 patients with schizophrenia who were unresponsive to treatment with antipsychotic monotherapy or combination therapy were recruited into this 12-week, open-label, prospective, multicenter study. Patients were switched to blonanserin from their existing antipsychotics over a maximum 2-week tapering-off period. Efficacy was primarily evaluated using the 18-item Brief Psychiatric Rating Scale (BPRS). Assessments were performed at baseline, and at weeks 1, 2, 4, 8, and 12. RESULTS: Switching to blonanserin resulted in a significant decrease in the mean total score on the BPRS from baseline (56.8 ± 9.4) to week 12 (42.1 ± 13.8, p < 0.001). The most common adverse events were extrapyramidal symptoms (n = 12, 23.1%), insomnia (n = 10, 19.2%), and emotional arousal (n = 6, 11.5%). Overweight or obese patients (body mass index ≥ 23 kg/m2, n = 33) who switched to blonanserin exhibited significant weight loss from 75.2 ± 9.3 kg at baseline to 73.5 ± 9.2 kg at week 12 (p = 0.006). The total cholesterol (baseline, 236.1 ± 47.6 mg/dl; endpoint [week 12], 209.9 ± 28.0 mg/dl; p = 0.005) and prolactin levels (baseline, 80.0 ± 85.2 ng/ml; endpoint [week 12], 63.2 ± 88.9 ng/ml; p = 0.003) were also significantly improved in patients with hypercholesterolemia or hyperprolactinemia. CONCLUSION: The results of the present study suggest that switching to blonanserin may be an effective strategy for schizophrenic patients unresponsive to other antipsychotic treatments.
		                        		
		                        		
		                        		
		                        			Antipsychotic Agents
		                        			;
		                        		
		                        			Arousal
		                        			;
		                        		
		                        			Body Weight
		                        			;
		                        		
		                        			Brief Psychiatric Rating Scale
		                        			;
		                        		
		                        			Cholesterol
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Hypercholesterolemia
		                        			;
		                        		
		                        			Hyperprolactinemia
		                        			;
		                        		
		                        			Overweight
		                        			;
		                        		
		                        			Prolactin
		                        			;
		                        		
		                        			Prospective Studies
		                        			;
		                        		
		                        			Schizophrenia
		                        			;
		                        		
		                        			Sleep Initiation and Maintenance Disorders
		                        			;
		                        		
		                        			Treatment Outcome
		                        			;
		                        		
		                        			Weight Loss
		                        			
		                        		
		                        	
7.Comparison of Baseline Characteristics between Community-based and Hospital-based Suicidal Ideators and Its Implications for Tailoring Strategies for Suicide Prevention: Korean Cohort for the Model Predicting a Suicide and Suicide-related Behavior.
C Hyung Keun PARK ; Jae Won LEE ; Sang Yeol LEE ; Jungjoon MOON ; Se Hoon SHIM ; Jong Woo PAIK ; Shin Gyeom KIM ; Seong Jin CHO ; Min Hyuk KIM ; Seokho KIM ; Jae Hyun PARK ; Sungeun YOU ; Hong Jin JEON ; Yong Min AHN
Journal of Korean Medical Science 2017;32(9):1522-1533
		                        		
		                        			
		                        			In this cross-sectional study, we aimed to identify distinguishing factors between populations with suicidal ideation recruited from hospitals and communities to make an efficient allocation of limited anti-suicidal resources according to group differences. We analyzed the baseline data from 120 individuals in a community-based cohort (CC) and 137 individuals in a hospital-based cohort (HC) with suicidal ideation obtained from the Korean Cohort for the Model Predicting a Suicide and Suicide-related Behavior (K-COMPASS) study. First, their sociodemographic factors, histories of medical and psychiatric illnesses, and suicidal behaviors were compared. Second, diagnosis by the Korean version of the Mini International Neuropsychiatric Interview, scores of psychometric scales were used to assess differences in clinical severity between the groups. The results revealed that the HC had more severe clinical features: more psychiatric diagnosis including current and recurrent major depressive episodes (odds ratio [OR], 4.054; P < 0.001 and OR, 11.432; P < 0.001, respectively), current suicide risk (OR, 4.817; P < 0.001), past manic episodes (OR, 9.500; P < 0.001), past hypomanic episodes (OR, 4.108; P = 0.008), current alcohol abuse (OR, 3.566; P = 0.020), and current mood disorder with psychotic features (OR, 20.342; P < 0.001) besides significantly higher scores in depression, anxiety, alcohol problems, impulsivity, and stress. By comparison, old age, single households, and low socioeconomic status were significantly associated with the CC. These findings indicate the necessity of more clinically oriented support for hospital visitors and more socioeconomic aid for community-dwellers with suicidality.
		                        		
		                        		
		                        		
		                        			Alcoholism
		                        			;
		                        		
		                        			Anxiety
		                        			;
		                        		
		                        			Cohort Studies*
		                        			;
		                        		
		                        			Community Mental Health Centers
		                        			;
		                        		
		                        			Cross-Sectional Studies
		                        			;
		                        		
		                        			Depression
		                        			;
		                        		
		                        			Diagnosis
		                        			;
		                        		
		                        			Epidemiologic Studies
		                        			;
		                        		
		                        			Family Characteristics
		                        			;
		                        		
		                        			Impulsive Behavior
		                        			;
		                        		
		                        			Korea
		                        			;
		                        		
		                        			Mental Disorders
		                        			;
		                        		
		                        			Mood Disorders
		                        			;
		                        		
		                        			Psychometrics
		                        			;
		                        		
		                        			Social Class
		                        			;
		                        		
		                        			Suicidal Ideation
		                        			;
		                        		
		                        			Suicide*
		                        			;
		                        		
		                        			Weights and Measures
		                        			
		                        		
		                        	
8.The Effectiveness of Subdural Drains Using Urokinase after Burr Hole Evacuation of Subacute Subdural Hematoma in Elderly Patients: A Prelimilary Report.
Chang Gi YEO ; Woo Yeol JEON ; Seong Ho KIM ; Oh Lyong KIM ; Min Su KIM
Korean Journal of Neurotrauma 2016;12(2):101-106
		                        		
		                        			
		                        			OBJECTIVE: A subdural drain using urokinase after a burr hole hematoma evacuation was performed for subacute subdural hematoma (SASDH), and its effectiveness and safety in elderly patients were evaluated. METHODS: Between January 2013 and May 2015, subdural drains using urokinase after burr hole hematoma evacuation were performed in 19 elderly patients. The inclusion criteria were as follows: 1) a subdural hematoma occurring between 4 and 20 days after injury; 2) worsening neurological symptoms, from mild to moderate or severe, due to injury during the subacute stage; 3) a mix of solid clots (high-density lighter shadow) and fluid hematoma (low-density darker shadow) on the computed tomography (CT) scan; 4) a score of ≥9 on the Glasgow Coma Scale (GCS) assessed immediately before surgery; and 5) an age of ≥65 years. When the majority of the hematoma was evacuated on the CT, we removed the catheter. RESULTS: Under local anesthesia, a catheter was inserted into the hematoma through a burr hole. The mean age of the patients was 73.7 years (range, 65-87 years). The mean preoperative GCS score was 11.2 (range, 10-13), and the mean Glasgow Outcome Scale score for all patients was 5 at discharge. No recurrences of hematomas or surgical complications were observed. CONCLUSION: A subdural drain using urokinase after burr hole hematoma evacuation under local anesthesia is thought to be an effective and safe method of blood clot removal with low morbidity. This surgical method is less invasive for treating elderly patients with SASDH.
		                        		
		                        		
		                        		
		                        			Aged*
		                        			;
		                        		
		                        			Anesthesia, Local
		                        			;
		                        		
		                        			Catheters
		                        			;
		                        		
		                        			Drainage
		                        			;
		                        		
		                        			Glasgow Coma Scale
		                        			;
		                        		
		                        			Glasgow Outcome Scale
		                        			;
		                        		
		                        			Hematoma
		                        			;
		                        		
		                        			Hematoma, Subdural*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Methods
		                        			;
		                        		
		                        			Recurrence
		                        			;
		                        		
		                        			Urokinase-Type Plasminogen Activator*
		                        			
		                        		
		                        	
9.Neuroprotective Effect of Rapamycin (Autophagy Enhancer) in Transgenic SOD1-G93A Mice of Amyotrophic Lateral Sclerosis.
Suk Won AHN ; Gye Sun JEON ; Kwang Yeol PARK ; Yoon Ho HONG ; Kwang Woo LEE ; Jung Joon SUNG
Korean Journal of Clinical Neurophysiology 2013;15(2):53-58
		                        		
		                        			
		                        			BACKGROUND: The autophagy is the major route for lysosomal degradation of misfolded protein aggregates and oxidative cell components. We hypothesized that rapamycin (autophagy enhancer) would prolong the survival of motor neuron and suppress the disease progression in amyotrophic lateral sclerosis (ALS). METHODS: A total of 24 transgenic mice harboring the human G93A mutated SOD1 gene were used. The clinical status involving rotarod test and survival, and biochemical study of ALS mice model were evaluated. RESULTS: The onset of symptoms was significantly delayed in the rapamycin administration group compared with the control group. However, after the clinical symptom developed, the rapamycin exacerbated the disease progression and shortened the survival of ALS mice model, and apoptosis signals were up-regulated compared with control group. CONCLUSIONS: Even though further detailed studies on the relevancy between autophagy and ALS will be needed, our results revealed that the rapamycin administration was not effective for being novel promising therapeutic strategy in ALS transgenic mice and exacerbated the apoptosis.
		                        		
		                        		
		                        		
		                        			Amyotrophic Lateral Sclerosis*
		                        			;
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Apoptosis
		                        			;
		                        		
		                        			Autophagy
		                        			;
		                        		
		                        			Cellular Structures
		                        			;
		                        		
		                        			Disease Progression
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Mice*
		                        			;
		                        		
		                        			Mice, Transgenic
		                        			;
		                        		
		                        			Motor Neurons
		                        			;
		                        		
		                        			Neuroprotective Agents*
		                        			;
		                        		
		                        			Rotarod Performance Test
		                        			;
		                        		
		                        			Sirolimus*
		                        			
		                        		
		                        	
10.Pityriasis Rotunda Developed during Pregnancy.
Dong Yeob KO ; Su Young JEON ; Jin Woo HONG ; Ki Yeol LEE ; Chae Young LEE ; Ki Ho KIM ; Ki Hoon SONG
Korean Journal of Dermatology 2012;50(3):277-280
		                        		
		                        			
		                        			Pityriasis rotunda is an uncommon dermatosis characterized by asymptomatic, multiple, widely distributed, round or oval-shaped, hyperpigmented or hypopigmented, fine, scaly patches. They typically involve the abdomen, the trunk and extremities. Histopathologic findings are consistent with ichthyosis vulgaris, such as hyperkeratosis, hypogranulosis or agranulosis, hyperpigmentation of the basal layer in epidermis, and perivascular lymphohistiocytic infiltration in the dermis. Although the etiology of the disease remains unknown, it has been associated with a variety of underlying systemic diseases including infectious diseases, hormonal disorders, malignancies, and chronic disorders. One clinical case has been reported about the occurrence of the disease during pregnancy of a 24-year-old african woman, but there is only one reported case of exacerbation of the disease during pregnancy in Korea. Herein, we report a case of pityriasis rotunda occurring during pregnancy.
		                        		
		                        		
		                        		
		                        			Abdomen
		                        			;
		                        		
		                        			Communicable Diseases
		                        			;
		                        		
		                        			Dermis
		                        			;
		                        		
		                        			Epidermis
		                        			;
		                        		
		                        			Extremities
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Hyperpigmentation
		                        			;
		                        		
		                        			Ichthyosis Vulgaris
		                        			;
		                        		
		                        			Korea
		                        			;
		                        		
		                        			Pityriasis
		                        			;
		                        		
		                        			Pregnancy
		                        			;
		                        		
		                        			Skin Diseases
		                        			;
		                        		
		                        			Young Adult
		                        			
		                        		
		                        	
            
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