1.A Study on the Healthcare Workforce and Care for Acute Stroke: Results From the Survey of Hospitals Included in the National Acute Stroke Quality Assessment Program
Jong Young LEE ; Jun Kyeong KO ; Hak Cheol KO ; Hae-Won KOO ; Hyon-Jo KWON ; Dae-Won KIM ; Kangmin KIM ; Myeong Jin KIM ; Hoon KIM ; Keun Young PARK ; Kuhyun YANG ; Jae Sang OH ; Won Ki YOON ; Dong Hoon LEE ; Ho Jun YI ; Heui Seung LEE ; Jong-Kook RHIM ; Dong-Kyu JANG ; Youngjin JUNG ; Sang Woo HA ; Seung Hun SHEEN
Journal of Korean Medical Science 2025;40(16):e44-
		                        		
		                        			 Background:
		                        			With growing elderly populations, management of patients with acute stroke is increasingly important. In South Korea, the Acute Stroke Quality Assessment Program (ASQAP) has contributed to improving the quality of stroke care and practice behavior in healthcare institutions. While the mortality of hemorrhagic stroke remains high, there are only a few assessment indices associated with hemorrhagic stroke. Considering the need to develop assessment indices to improve the actual quality of care in the field of acute stroke treatment, this study aims to investigate the current status of human resources and practices related to the treatment of patients with acute stroke through a nationwide survey. 
		                        		
		                        			Methods:
		                        			For the healthcare institutions included in the Ninth ASQAP of the Health Insurance Review and Assessment Service (HIRA), data from January 2022 to December 2022 were collected through a survey on the current status and practice of healthcare providers related to the treatment of patients with acute stroke. The questionnaire consisted of 19 items, including six items on healthcare providers involved in stroke care and 10 items on the care of patients with acute stroke. 
		                        		
		                        			Results:
		                        			In the treatment of patients with hemorrhagic stroke among patients with acute stroke, neurosurgeons were the most common providers. The contribution of neurosurgeons in the treatment of ischemic stroke has also been found to be equivalent to that of neurologists. However, a number of institutions were found to be devoid of healthcare providers who perform definitive treatments, such as intra-arterial thrombectomy for patients with ischemic stroke or cerebral aneurysm clipping for subarachnoid hemorrhage. The intensity of the workload of healthcare providers involved in the care of patients with acute stroke, especially those involved in definitive treatment, was also found to be quite high. 
		                        		
		                        			Conclusion
		                        			Currently, there are almost no assessment indices specific to hemorrhagic stroke in the ASQAP for acute stroke. Furthermore, it does not reflect the reality of the healthcare providers and practices that provide definitive treatment for acute stroke. The findings of this study suggest the need for the development of appropriate assessment indices that reflect the realities of acute stroke care. 
		                        		
		                        		
		                        		
		                        	
2.Which Dermal Filler is Better for Penile Augmentation for Aesthetic Purposes?A Prospective, Single-Surgeon Study Based on Real-World Experience
Doo Won KIM ; Hyun Cheol JEONG ; Kyungtae KO ; Dae Yul YANG ; Jong Keun KIM ; Seong Ho LEE ; Tae Hyo KIM ; Won Ki LEE
The World Journal of Men's Health 2025;43(2):428-436
		                        		
		                        			 Purpose:
		                        			Several types of dermal fillers have been recently introduced and used for penile augmentation (PA). However, few studies have compared outcomes after the injection of different fillers. This study aimed to compare the clinical outcomes of hyaluronic acid (HLA), polylactic acid (PLA), and polymethyl methacrylate (PMA) filler injections, which are the most commonly used for aesthetic purposes. 
		                        		
		                        			Materials and Methods:
		                        			This prospective study was conducted for 24 weeks after a filler injection by a surgeon between March 2017 and December 2021. Healthy adult men complaining of small penis were enrolled. Penile girth, satisfaction, and injection-associated adverse events (AEs) were assessed at baseline and 4, 12, and 24 weeks after injection. 
		                        		
		                        			Results:
		                        			Of the 301 men who received filler injections, 125, 134, and 42 received HLA, PLA, and PMA fillers, respectively. The augmentation effect was in the order of PMA, HLA, and PLA, respectively, at 24 weeks (PMA vs. HLA, p<0.001; HLA vs. PLA, p=0.006). Satisfaction levels increased significantly at 24 weeks in all groups (each with p<0.001). However, the increase in satisfaction levels was smaller in the PMA group (PMA vs. HLA or PLA, p<0.05, for both penile appearance and sexual life). No serious or systemic AEs were recorded. Filler injection-associated local AEs in the HLA, PLA, and PMA groups occurred in 9 (7.2%), 16 (11.9%), and 6 (14.3%) men, respectively. There was no significant difference in AEs among the groups (p=0.299). 
		                        		
		                        			Conclusions
		                        			The augmentative effect was greater in the PMA group than in the HLA and PLA groups, whereas the increase in satisfaction levels was smaller in the PMA group. Our study demonstrated the clinical course of different types of fillers and suggests that the filler type should be selected after detailed counseling considering individual characteristics and preferences. 
		                        		
		                        		
		                        		
		                        	
3.Which Dermal Filler is Better for Penile Augmentation for Aesthetic Purposes?A Prospective, Single-Surgeon Study Based on Real-World Experience
Doo Won KIM ; Hyun Cheol JEONG ; Kyungtae KO ; Dae Yul YANG ; Jong Keun KIM ; Seong Ho LEE ; Tae Hyo KIM ; Won Ki LEE
The World Journal of Men's Health 2025;43(2):428-436
		                        		
		                        			 Purpose:
		                        			Several types of dermal fillers have been recently introduced and used for penile augmentation (PA). However, few studies have compared outcomes after the injection of different fillers. This study aimed to compare the clinical outcomes of hyaluronic acid (HLA), polylactic acid (PLA), and polymethyl methacrylate (PMA) filler injections, which are the most commonly used for aesthetic purposes. 
		                        		
		                        			Materials and Methods:
		                        			This prospective study was conducted for 24 weeks after a filler injection by a surgeon between March 2017 and December 2021. Healthy adult men complaining of small penis were enrolled. Penile girth, satisfaction, and injection-associated adverse events (AEs) were assessed at baseline and 4, 12, and 24 weeks after injection. 
		                        		
		                        			Results:
		                        			Of the 301 men who received filler injections, 125, 134, and 42 received HLA, PLA, and PMA fillers, respectively. The augmentation effect was in the order of PMA, HLA, and PLA, respectively, at 24 weeks (PMA vs. HLA, p<0.001; HLA vs. PLA, p=0.006). Satisfaction levels increased significantly at 24 weeks in all groups (each with p<0.001). However, the increase in satisfaction levels was smaller in the PMA group (PMA vs. HLA or PLA, p<0.05, for both penile appearance and sexual life). No serious or systemic AEs were recorded. Filler injection-associated local AEs in the HLA, PLA, and PMA groups occurred in 9 (7.2%), 16 (11.9%), and 6 (14.3%) men, respectively. There was no significant difference in AEs among the groups (p=0.299). 
		                        		
		                        			Conclusions
		                        			The augmentative effect was greater in the PMA group than in the HLA and PLA groups, whereas the increase in satisfaction levels was smaller in the PMA group. Our study demonstrated the clinical course of different types of fillers and suggests that the filler type should be selected after detailed counseling considering individual characteristics and preferences. 
		                        		
		                        		
		                        		
		                        	
4.Which Dermal Filler is Better for Penile Augmentation for Aesthetic Purposes?A Prospective, Single-Surgeon Study Based on Real-World Experience
Doo Won KIM ; Hyun Cheol JEONG ; Kyungtae KO ; Dae Yul YANG ; Jong Keun KIM ; Seong Ho LEE ; Tae Hyo KIM ; Won Ki LEE
The World Journal of Men's Health 2025;43(2):428-436
		                        		
		                        			 Purpose:
		                        			Several types of dermal fillers have been recently introduced and used for penile augmentation (PA). However, few studies have compared outcomes after the injection of different fillers. This study aimed to compare the clinical outcomes of hyaluronic acid (HLA), polylactic acid (PLA), and polymethyl methacrylate (PMA) filler injections, which are the most commonly used for aesthetic purposes. 
		                        		
		                        			Materials and Methods:
		                        			This prospective study was conducted for 24 weeks after a filler injection by a surgeon between March 2017 and December 2021. Healthy adult men complaining of small penis were enrolled. Penile girth, satisfaction, and injection-associated adverse events (AEs) were assessed at baseline and 4, 12, and 24 weeks after injection. 
		                        		
		                        			Results:
		                        			Of the 301 men who received filler injections, 125, 134, and 42 received HLA, PLA, and PMA fillers, respectively. The augmentation effect was in the order of PMA, HLA, and PLA, respectively, at 24 weeks (PMA vs. HLA, p<0.001; HLA vs. PLA, p=0.006). Satisfaction levels increased significantly at 24 weeks in all groups (each with p<0.001). However, the increase in satisfaction levels was smaller in the PMA group (PMA vs. HLA or PLA, p<0.05, for both penile appearance and sexual life). No serious or systemic AEs were recorded. Filler injection-associated local AEs in the HLA, PLA, and PMA groups occurred in 9 (7.2%), 16 (11.9%), and 6 (14.3%) men, respectively. There was no significant difference in AEs among the groups (p=0.299). 
		                        		
		                        			Conclusions
		                        			The augmentative effect was greater in the PMA group than in the HLA and PLA groups, whereas the increase in satisfaction levels was smaller in the PMA group. Our study demonstrated the clinical course of different types of fillers and suggests that the filler type should be selected after detailed counseling considering individual characteristics and preferences. 
		                        		
		                        		
		                        		
		                        	
5.A Study on the Healthcare Workforce and Care for Acute Stroke: Results From the Survey of Hospitals Included in the National Acute Stroke Quality Assessment Program
Jong Young LEE ; Jun Kyeong KO ; Hak Cheol KO ; Hae-Won KOO ; Hyon-Jo KWON ; Dae-Won KIM ; Kangmin KIM ; Myeong Jin KIM ; Hoon KIM ; Keun Young PARK ; Kuhyun YANG ; Jae Sang OH ; Won Ki YOON ; Dong Hoon LEE ; Ho Jun YI ; Heui Seung LEE ; Jong-Kook RHIM ; Dong-Kyu JANG ; Youngjin JUNG ; Sang Woo HA ; Seung Hun SHEEN
Journal of Korean Medical Science 2025;40(16):e44-
		                        		
		                        			 Background:
		                        			With growing elderly populations, management of patients with acute stroke is increasingly important. In South Korea, the Acute Stroke Quality Assessment Program (ASQAP) has contributed to improving the quality of stroke care and practice behavior in healthcare institutions. While the mortality of hemorrhagic stroke remains high, there are only a few assessment indices associated with hemorrhagic stroke. Considering the need to develop assessment indices to improve the actual quality of care in the field of acute stroke treatment, this study aims to investigate the current status of human resources and practices related to the treatment of patients with acute stroke through a nationwide survey. 
		                        		
		                        			Methods:
		                        			For the healthcare institutions included in the Ninth ASQAP of the Health Insurance Review and Assessment Service (HIRA), data from January 2022 to December 2022 were collected through a survey on the current status and practice of healthcare providers related to the treatment of patients with acute stroke. The questionnaire consisted of 19 items, including six items on healthcare providers involved in stroke care and 10 items on the care of patients with acute stroke. 
		                        		
		                        			Results:
		                        			In the treatment of patients with hemorrhagic stroke among patients with acute stroke, neurosurgeons were the most common providers. The contribution of neurosurgeons in the treatment of ischemic stroke has also been found to be equivalent to that of neurologists. However, a number of institutions were found to be devoid of healthcare providers who perform definitive treatments, such as intra-arterial thrombectomy for patients with ischemic stroke or cerebral aneurysm clipping for subarachnoid hemorrhage. The intensity of the workload of healthcare providers involved in the care of patients with acute stroke, especially those involved in definitive treatment, was also found to be quite high. 
		                        		
		                        			Conclusion
		                        			Currently, there are almost no assessment indices specific to hemorrhagic stroke in the ASQAP for acute stroke. Furthermore, it does not reflect the reality of the healthcare providers and practices that provide definitive treatment for acute stroke. The findings of this study suggest the need for the development of appropriate assessment indices that reflect the realities of acute stroke care. 
		                        		
		                        		
		                        		
		                        	
6.A Study on the Healthcare Workforce and Care for Acute Stroke: Results From the Survey of Hospitals Included in the National Acute Stroke Quality Assessment Program
Jong Young LEE ; Jun Kyeong KO ; Hak Cheol KO ; Hae-Won KOO ; Hyon-Jo KWON ; Dae-Won KIM ; Kangmin KIM ; Myeong Jin KIM ; Hoon KIM ; Keun Young PARK ; Kuhyun YANG ; Jae Sang OH ; Won Ki YOON ; Dong Hoon LEE ; Ho Jun YI ; Heui Seung LEE ; Jong-Kook RHIM ; Dong-Kyu JANG ; Youngjin JUNG ; Sang Woo HA ; Seung Hun SHEEN
Journal of Korean Medical Science 2025;40(16):e44-
		                        		
		                        			 Background:
		                        			With growing elderly populations, management of patients with acute stroke is increasingly important. In South Korea, the Acute Stroke Quality Assessment Program (ASQAP) has contributed to improving the quality of stroke care and practice behavior in healthcare institutions. While the mortality of hemorrhagic stroke remains high, there are only a few assessment indices associated with hemorrhagic stroke. Considering the need to develop assessment indices to improve the actual quality of care in the field of acute stroke treatment, this study aims to investigate the current status of human resources and practices related to the treatment of patients with acute stroke through a nationwide survey. 
		                        		
		                        			Methods:
		                        			For the healthcare institutions included in the Ninth ASQAP of the Health Insurance Review and Assessment Service (HIRA), data from January 2022 to December 2022 were collected through a survey on the current status and practice of healthcare providers related to the treatment of patients with acute stroke. The questionnaire consisted of 19 items, including six items on healthcare providers involved in stroke care and 10 items on the care of patients with acute stroke. 
		                        		
		                        			Results:
		                        			In the treatment of patients with hemorrhagic stroke among patients with acute stroke, neurosurgeons were the most common providers. The contribution of neurosurgeons in the treatment of ischemic stroke has also been found to be equivalent to that of neurologists. However, a number of institutions were found to be devoid of healthcare providers who perform definitive treatments, such as intra-arterial thrombectomy for patients with ischemic stroke or cerebral aneurysm clipping for subarachnoid hemorrhage. The intensity of the workload of healthcare providers involved in the care of patients with acute stroke, especially those involved in definitive treatment, was also found to be quite high. 
		                        		
		                        			Conclusion
		                        			Currently, there are almost no assessment indices specific to hemorrhagic stroke in the ASQAP for acute stroke. Furthermore, it does not reflect the reality of the healthcare providers and practices that provide definitive treatment for acute stroke. The findings of this study suggest the need for the development of appropriate assessment indices that reflect the realities of acute stroke care. 
		                        		
		                        		
		                        		
		                        	
7.Which Dermal Filler is Better for Penile Augmentation for Aesthetic Purposes?A Prospective, Single-Surgeon Study Based on Real-World Experience
Doo Won KIM ; Hyun Cheol JEONG ; Kyungtae KO ; Dae Yul YANG ; Jong Keun KIM ; Seong Ho LEE ; Tae Hyo KIM ; Won Ki LEE
The World Journal of Men's Health 2025;43(2):428-436
		                        		
		                        			 Purpose:
		                        			Several types of dermal fillers have been recently introduced and used for penile augmentation (PA). However, few studies have compared outcomes after the injection of different fillers. This study aimed to compare the clinical outcomes of hyaluronic acid (HLA), polylactic acid (PLA), and polymethyl methacrylate (PMA) filler injections, which are the most commonly used for aesthetic purposes. 
		                        		
		                        			Materials and Methods:
		                        			This prospective study was conducted for 24 weeks after a filler injection by a surgeon between March 2017 and December 2021. Healthy adult men complaining of small penis were enrolled. Penile girth, satisfaction, and injection-associated adverse events (AEs) were assessed at baseline and 4, 12, and 24 weeks after injection. 
		                        		
		                        			Results:
		                        			Of the 301 men who received filler injections, 125, 134, and 42 received HLA, PLA, and PMA fillers, respectively. The augmentation effect was in the order of PMA, HLA, and PLA, respectively, at 24 weeks (PMA vs. HLA, p<0.001; HLA vs. PLA, p=0.006). Satisfaction levels increased significantly at 24 weeks in all groups (each with p<0.001). However, the increase in satisfaction levels was smaller in the PMA group (PMA vs. HLA or PLA, p<0.05, for both penile appearance and sexual life). No serious or systemic AEs were recorded. Filler injection-associated local AEs in the HLA, PLA, and PMA groups occurred in 9 (7.2%), 16 (11.9%), and 6 (14.3%) men, respectively. There was no significant difference in AEs among the groups (p=0.299). 
		                        		
		                        			Conclusions
		                        			The augmentative effect was greater in the PMA group than in the HLA and PLA groups, whereas the increase in satisfaction levels was smaller in the PMA group. Our study demonstrated the clinical course of different types of fillers and suggests that the filler type should be selected after detailed counseling considering individual characteristics and preferences. 
		                        		
		                        		
		                        		
		                        	
8.A Study on the Healthcare Workforce and Care for Acute Stroke: Results From the Survey of Hospitals Included in the National Acute Stroke Quality Assessment Program
Jong Young LEE ; Jun Kyeong KO ; Hak Cheol KO ; Hae-Won KOO ; Hyon-Jo KWON ; Dae-Won KIM ; Kangmin KIM ; Myeong Jin KIM ; Hoon KIM ; Keun Young PARK ; Kuhyun YANG ; Jae Sang OH ; Won Ki YOON ; Dong Hoon LEE ; Ho Jun YI ; Heui Seung LEE ; Jong-Kook RHIM ; Dong-Kyu JANG ; Youngjin JUNG ; Sang Woo HA ; Seung Hun SHEEN
Journal of Korean Medical Science 2025;40(16):e44-
		                        		
		                        			 Background:
		                        			With growing elderly populations, management of patients with acute stroke is increasingly important. In South Korea, the Acute Stroke Quality Assessment Program (ASQAP) has contributed to improving the quality of stroke care and practice behavior in healthcare institutions. While the mortality of hemorrhagic stroke remains high, there are only a few assessment indices associated with hemorrhagic stroke. Considering the need to develop assessment indices to improve the actual quality of care in the field of acute stroke treatment, this study aims to investigate the current status of human resources and practices related to the treatment of patients with acute stroke through a nationwide survey. 
		                        		
		                        			Methods:
		                        			For the healthcare institutions included in the Ninth ASQAP of the Health Insurance Review and Assessment Service (HIRA), data from January 2022 to December 2022 were collected through a survey on the current status and practice of healthcare providers related to the treatment of patients with acute stroke. The questionnaire consisted of 19 items, including six items on healthcare providers involved in stroke care and 10 items on the care of patients with acute stroke. 
		                        		
		                        			Results:
		                        			In the treatment of patients with hemorrhagic stroke among patients with acute stroke, neurosurgeons were the most common providers. The contribution of neurosurgeons in the treatment of ischemic stroke has also been found to be equivalent to that of neurologists. However, a number of institutions were found to be devoid of healthcare providers who perform definitive treatments, such as intra-arterial thrombectomy for patients with ischemic stroke or cerebral aneurysm clipping for subarachnoid hemorrhage. The intensity of the workload of healthcare providers involved in the care of patients with acute stroke, especially those involved in definitive treatment, was also found to be quite high. 
		                        		
		                        			Conclusion
		                        			Currently, there are almost no assessment indices specific to hemorrhagic stroke in the ASQAP for acute stroke. Furthermore, it does not reflect the reality of the healthcare providers and practices that provide definitive treatment for acute stroke. The findings of this study suggest the need for the development of appropriate assessment indices that reflect the realities of acute stroke care. 
		                        		
		                        		
		                        		
		                        	
9.Which Dermal Filler is Better for Penile Augmentation for Aesthetic Purposes?A Prospective, Single-Surgeon Study Based on Real-World Experience
Doo Won KIM ; Hyun Cheol JEONG ; Kyungtae KO ; Dae Yul YANG ; Jong Keun KIM ; Seong Ho LEE ; Tae Hyo KIM ; Won Ki LEE
The World Journal of Men's Health 2025;43(2):428-436
		                        		
		                        			 Purpose:
		                        			Several types of dermal fillers have been recently introduced and used for penile augmentation (PA). However, few studies have compared outcomes after the injection of different fillers. This study aimed to compare the clinical outcomes of hyaluronic acid (HLA), polylactic acid (PLA), and polymethyl methacrylate (PMA) filler injections, which are the most commonly used for aesthetic purposes. 
		                        		
		                        			Materials and Methods:
		                        			This prospective study was conducted for 24 weeks after a filler injection by a surgeon between March 2017 and December 2021. Healthy adult men complaining of small penis were enrolled. Penile girth, satisfaction, and injection-associated adverse events (AEs) were assessed at baseline and 4, 12, and 24 weeks after injection. 
		                        		
		                        			Results:
		                        			Of the 301 men who received filler injections, 125, 134, and 42 received HLA, PLA, and PMA fillers, respectively. The augmentation effect was in the order of PMA, HLA, and PLA, respectively, at 24 weeks (PMA vs. HLA, p<0.001; HLA vs. PLA, p=0.006). Satisfaction levels increased significantly at 24 weeks in all groups (each with p<0.001). However, the increase in satisfaction levels was smaller in the PMA group (PMA vs. HLA or PLA, p<0.05, for both penile appearance and sexual life). No serious or systemic AEs were recorded. Filler injection-associated local AEs in the HLA, PLA, and PMA groups occurred in 9 (7.2%), 16 (11.9%), and 6 (14.3%) men, respectively. There was no significant difference in AEs among the groups (p=0.299). 
		                        		
		                        			Conclusions
		                        			The augmentative effect was greater in the PMA group than in the HLA and PLA groups, whereas the increase in satisfaction levels was smaller in the PMA group. Our study demonstrated the clinical course of different types of fillers and suggests that the filler type should be selected after detailed counseling considering individual characteristics and preferences. 
		                        		
		                        		
		                        		
		                        	
10.Exosomes Reshape the Osteoarthritic Defect: Emerging Potential in Regenerative Medicine–A Review
Jaishree SANKARANARAYANAN ; Seok Cheol LEE ; Hyung Keun KIM ; Ju Yeon KANG ; Sree Samanvitha KUPPA ; Jong Keun SEON
International Journal of Stem Cells 2024;17(4):381-396
		                        		
		                        			
		                        			 Osteoarthritis (OA) is a joint disorder caused by wear and tear of the cartilage that cushions the joints. It is a progressive condition that can cause significant pain and disability. Currently, there is no cure for OA, though there are treatments available to manage symptoms and slow the progression of the disease. A chondral defect is a common and devastating lesion that is challenging to treat due to its avascular and aneural nature. However, there are conventional therapies available, ranging from microfracture to cell-based therapy. Anyhow, its efficiency in cartilage defects is limited due to unclear cell viability. Exosomes have emerged as a potent therapeutic tool for chondral defects because they are a complicated complex containing cargo of proteins, DNA, and RNA as well as the ability to target cells due to their phospholipidic composition and the altering exosomal contents that boost regeneration potential. Exosomes are used in a variety of applications, including tissue healing and anti-inflammatory therapy. As in recent years, biomaterialsbased bio fabrication has gained popularity among the many printable polymer-based hydrogels, tissue-specific decellularized extracellular matrix might boost the effects rather than an extracellular matrix imitating environment, a short note has been discussed. Exosomes are believed to be the greatest alternative option for current cell-based therapy, and future progress in exosome-based therapy could have a greater influence in the field of orthopaedics. The review focuses extensively on the insights of exosome use and scientific breakthroughs centered OA. 
		                        		
		                        		
		                        		
		                        	
            
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