1.Comparative analysis of postoperative outcomes of single-incision cholecystectomy: Propensity score matching of robotic surgery using the da Vinci SP system and da Vinci Xi system vs. laparoscopic surgery
Jeong-Ik PARK ; Yong-Kyu CHUNG ; Young Min LEE ; Chang Woo NAM ; Yang Won NAH
Annals of Hepato-Biliary-Pancreatic Surgery 2025;29(2):140-149
		                        		
		                        			 Background:
		                        			s/Aims: We compared the postoperative outcomes of single-incision laparoscopic cholecystectomy (SILC) with those of single-incision robotic cholecystectomy (SIRC) using the da Vinci Xi and SP systems. 
		                        		
		                        			Methods:
		                        			We retrospectively analyzed data from 206 patients who underwent these procedures by a single surgeon between August 2020 and April 2022. Propensity score matching was used to adjust for confounders and evaluate outcomes. 
		                        		
		                        			Results:
		                        			SILC exhibited shorter operation times compared to SIRC with Xi and SP (44.9 ± 14.5 min vs. 55.3 ± 12.2 min vs. 55.2 ± 16.2 min, p < 0.001). SIRC with Xi had shorter docking times (6.2 ± 2.8 min vs. 10.3 ± 2.3 min, p < 0.001), while SIRC with SP demonstrated reduced console times (11.2 ± 2.4 min vs. 18.6 ± 8.0 min, p < 0.001). Pain scores and complications did not significantly differ between the groups. 
		                        		
		                        			Conclusions
		                        			Both SILC and SIRC showed comparable outcomes, with the SP system providing advantages such as reduced console time and fully articulated arms, likely reducing surgeon stress. 
		                        		
		                        		
		                        		
		                        	
2.Comparative analysis of postoperative outcomes of single-incision cholecystectomy: Propensity score matching of robotic surgery using the da Vinci SP system and da Vinci Xi system vs. laparoscopic surgery
Jeong-Ik PARK ; Yong-Kyu CHUNG ; Young Min LEE ; Chang Woo NAM ; Yang Won NAH
Annals of Hepato-Biliary-Pancreatic Surgery 2025;29(2):140-149
		                        		
		                        			 Background:
		                        			s/Aims: We compared the postoperative outcomes of single-incision laparoscopic cholecystectomy (SILC) with those of single-incision robotic cholecystectomy (SIRC) using the da Vinci Xi and SP systems. 
		                        		
		                        			Methods:
		                        			We retrospectively analyzed data from 206 patients who underwent these procedures by a single surgeon between August 2020 and April 2022. Propensity score matching was used to adjust for confounders and evaluate outcomes. 
		                        		
		                        			Results:
		                        			SILC exhibited shorter operation times compared to SIRC with Xi and SP (44.9 ± 14.5 min vs. 55.3 ± 12.2 min vs. 55.2 ± 16.2 min, p < 0.001). SIRC with Xi had shorter docking times (6.2 ± 2.8 min vs. 10.3 ± 2.3 min, p < 0.001), while SIRC with SP demonstrated reduced console times (11.2 ± 2.4 min vs. 18.6 ± 8.0 min, p < 0.001). Pain scores and complications did not significantly differ between the groups. 
		                        		
		                        			Conclusions
		                        			Both SILC and SIRC showed comparable outcomes, with the SP system providing advantages such as reduced console time and fully articulated arms, likely reducing surgeon stress. 
		                        		
		                        		
		                        		
		                        	
3.Comparative analysis of postoperative outcomes of single-incision cholecystectomy: Propensity score matching of robotic surgery using the da Vinci SP system and da Vinci Xi system vs. laparoscopic surgery
Jeong-Ik PARK ; Yong-Kyu CHUNG ; Young Min LEE ; Chang Woo NAM ; Yang Won NAH
Annals of Hepato-Biliary-Pancreatic Surgery 2025;29(2):140-149
		                        		
		                        			 Background:
		                        			s/Aims: We compared the postoperative outcomes of single-incision laparoscopic cholecystectomy (SILC) with those of single-incision robotic cholecystectomy (SIRC) using the da Vinci Xi and SP systems. 
		                        		
		                        			Methods:
		                        			We retrospectively analyzed data from 206 patients who underwent these procedures by a single surgeon between August 2020 and April 2022. Propensity score matching was used to adjust for confounders and evaluate outcomes. 
		                        		
		                        			Results:
		                        			SILC exhibited shorter operation times compared to SIRC with Xi and SP (44.9 ± 14.5 min vs. 55.3 ± 12.2 min vs. 55.2 ± 16.2 min, p < 0.001). SIRC with Xi had shorter docking times (6.2 ± 2.8 min vs. 10.3 ± 2.3 min, p < 0.001), while SIRC with SP demonstrated reduced console times (11.2 ± 2.4 min vs. 18.6 ± 8.0 min, p < 0.001). Pain scores and complications did not significantly differ between the groups. 
		                        		
		                        			Conclusions
		                        			Both SILC and SIRC showed comparable outcomes, with the SP system providing advantages such as reduced console time and fully articulated arms, likely reducing surgeon stress. 
		                        		
		                        		
		                        		
		                        	
4.The first Korean carbon-ion radiation therapy facility: current status of the Heavy-ion Therapy Center at the Yonsei Cancer Center
Min Cheol HAN ; Seo Hee CHOI ; Chae-Seon HONG ; Yong Bae KIM ; Woong Sub KOOM ; Jin Sung KIM ; Jaeho CHO ; Chan Woo WEE ; Changhwan KIM ; Jong Won PARK ; Soorim HAN ; Heejeong LEE ; Hong In YOON ; Ik Jae LEE ; Ki Chang KEUM
Radiation Oncology Journal 2024;42(4):295-307
		                        		
		                        			 Purpose:
		                        			This report offers a detailed examination of the inception and current state of the Heavy-ion Therapy Center (HITC) at the Yonsei Cancer Center (YCC), setting it apart as the world’s first center equipped with a fixed beam and two superconducting gantries for carbon-ion radiation therapy (CIRT).  
		                        		
		                        			Materials and Methods:
		                        			Preparations for CIRT at YCC began in 2013; accordingly, this center has completed a decade of meticulous planning and culminating since the operational commencement of the HITC in April 2023.  
		                        		
		                        			Results:
		                        			This report elaborates on the clinical preparation for adopting CIRT in Korea. It includes an extensive description of HITC’s facility layout at YCC, which comprises the accelerator and treatment rooms. Furthermore, this report delineates the clinical workflow, criteria for CIRT application, and the rigorous quality assurance processes implemented at YCC. It highlights YCC’s sophisticated radiation therapy infrastructure, collaborative initiatives, and the efficacious treatment of >200 prostate cancer cases utilizing CIRT.  
		                        		
		                        			Conclusion
		                        			This manuscript concludes by discussing the prospective influence of CIRT on the medical domain within Korea, spotlighting YCC’s pioneering contribution and forecasting the widespread integration of this groundbreaking technology. 
		                        		
		                        		
		                        		
		                        	
5.Clinical indications and future directions of carbonion radiotherapy: a narrative review
Seo Hee CHOI ; Woong Sub KOOM ; Hong In YOON ; Kyung Hwan KIM ; Chan Woo WEE ; Jaeho CHO ; Yong Bae KIM ; Ki Chang KEUM ; Ik Jae LEE
The Ewha Medical Journal 2024;47(4):e56-
		                        		
		                        			
		                        			 Carbon-ion radiotherapy (CIRT) offers superior dose distributions and greater biological effectiveness than conventional photon-based radiotherapy (RT). Due to its higher linear energy transfer and relative biological effectiveness, CIRT is particularly effective against radioresistant tumors and those located near critical organs. Since the first dedicated CIRT facility was established in Japan in 1994, CIRT has demonstrated remarkable efficacy against various malignancies, including head and neck tumors, skull base and upper cervical spine tumors, non-small-cell lung cancer, hepatocellular carcinoma, pancreatic cancer, prostate cancer, and bone and soft tissue sarcomas. This narrative review provides a comprehensive overview of the current status of CIRT, highlighting its clinical indications and future directions. According to clinical studies, CIRT achieves high local control rates with manageable toxicity across multiple cancer types. For instance, in head and neck tumors (e.g., adenoid cystic carcinoma and mucosal melanoma), CIRT has achieved local control rates exceeding 80%. In early-stage non-small-cell lung cancer, CIRT has resulted in local control rates over 90% with minimal toxicity. Moreover, CIRT has shown promise in treating challenging cases of hepatocellular carcinoma and pancreatic cancer, where conventional therapies are limited. Nonetheless, the global adoption of CIRT remains limited due to high costs and complexity. Future directions include conducting randomized controlled trials to establish high-level evidence, integrating new technologies such as ultrahigh-dose-rate (FLASH) therapy, and expanding CIRT facilities globally with strategic planning and cost-effectiveness analyses. If these challenges are addressed, CIRT is poised to play a transformative role in cancer treatment, improving survival rates and the quality of life. 
		                        		
		                        		
		                        		
		                        	
6.The first Korean carbon-ion radiation therapy facility: current status of the Heavy-ion Therapy Center at the Yonsei Cancer Center
Min Cheol HAN ; Seo Hee CHOI ; Chae-Seon HONG ; Yong Bae KIM ; Woong Sub KOOM ; Jin Sung KIM ; Jaeho CHO ; Chan Woo WEE ; Changhwan KIM ; Jong Won PARK ; Soorim HAN ; Heejeong LEE ; Hong In YOON ; Ik Jae LEE ; Ki Chang KEUM
Radiation Oncology Journal 2024;42(4):295-307
		                        		
		                        			 Purpose:
		                        			This report offers a detailed examination of the inception and current state of the Heavy-ion Therapy Center (HITC) at the Yonsei Cancer Center (YCC), setting it apart as the world’s first center equipped with a fixed beam and two superconducting gantries for carbon-ion radiation therapy (CIRT).  
		                        		
		                        			Materials and Methods:
		                        			Preparations for CIRT at YCC began in 2013; accordingly, this center has completed a decade of meticulous planning and culminating since the operational commencement of the HITC in April 2023.  
		                        		
		                        			Results:
		                        			This report elaborates on the clinical preparation for adopting CIRT in Korea. It includes an extensive description of HITC’s facility layout at YCC, which comprises the accelerator and treatment rooms. Furthermore, this report delineates the clinical workflow, criteria for CIRT application, and the rigorous quality assurance processes implemented at YCC. It highlights YCC’s sophisticated radiation therapy infrastructure, collaborative initiatives, and the efficacious treatment of >200 prostate cancer cases utilizing CIRT.  
		                        		
		                        			Conclusion
		                        			This manuscript concludes by discussing the prospective influence of CIRT on the medical domain within Korea, spotlighting YCC’s pioneering contribution and forecasting the widespread integration of this groundbreaking technology. 
		                        		
		                        		
		                        		
		                        	
7.Clinical indications and future directions of carbonion radiotherapy: a narrative review
Seo Hee CHOI ; Woong Sub KOOM ; Hong In YOON ; Kyung Hwan KIM ; Chan Woo WEE ; Jaeho CHO ; Yong Bae KIM ; Ki Chang KEUM ; Ik Jae LEE
The Ewha Medical Journal 2024;47(4):e56-
		                        		
		                        			
		                        			 Carbon-ion radiotherapy (CIRT) offers superior dose distributions and greater biological effectiveness than conventional photon-based radiotherapy (RT). Due to its higher linear energy transfer and relative biological effectiveness, CIRT is particularly effective against radioresistant tumors and those located near critical organs. Since the first dedicated CIRT facility was established in Japan in 1994, CIRT has demonstrated remarkable efficacy against various malignancies, including head and neck tumors, skull base and upper cervical spine tumors, non-small-cell lung cancer, hepatocellular carcinoma, pancreatic cancer, prostate cancer, and bone and soft tissue sarcomas. This narrative review provides a comprehensive overview of the current status of CIRT, highlighting its clinical indications and future directions. According to clinical studies, CIRT achieves high local control rates with manageable toxicity across multiple cancer types. For instance, in head and neck tumors (e.g., adenoid cystic carcinoma and mucosal melanoma), CIRT has achieved local control rates exceeding 80%. In early-stage non-small-cell lung cancer, CIRT has resulted in local control rates over 90% with minimal toxicity. Moreover, CIRT has shown promise in treating challenging cases of hepatocellular carcinoma and pancreatic cancer, where conventional therapies are limited. Nonetheless, the global adoption of CIRT remains limited due to high costs and complexity. Future directions include conducting randomized controlled trials to establish high-level evidence, integrating new technologies such as ultrahigh-dose-rate (FLASH) therapy, and expanding CIRT facilities globally with strategic planning and cost-effectiveness analyses. If these challenges are addressed, CIRT is poised to play a transformative role in cancer treatment, improving survival rates and the quality of life. 
		                        		
		                        		
		                        		
		                        	
8.The first Korean carbon-ion radiation therapy facility: current status of the Heavy-ion Therapy Center at the Yonsei Cancer Center
Min Cheol HAN ; Seo Hee CHOI ; Chae-Seon HONG ; Yong Bae KIM ; Woong Sub KOOM ; Jin Sung KIM ; Jaeho CHO ; Chan Woo WEE ; Changhwan KIM ; Jong Won PARK ; Soorim HAN ; Heejeong LEE ; Hong In YOON ; Ik Jae LEE ; Ki Chang KEUM
Radiation Oncology Journal 2024;42(4):295-307
		                        		
		                        			 Purpose:
		                        			This report offers a detailed examination of the inception and current state of the Heavy-ion Therapy Center (HITC) at the Yonsei Cancer Center (YCC), setting it apart as the world’s first center equipped with a fixed beam and two superconducting gantries for carbon-ion radiation therapy (CIRT).  
		                        		
		                        			Materials and Methods:
		                        			Preparations for CIRT at YCC began in 2013; accordingly, this center has completed a decade of meticulous planning and culminating since the operational commencement of the HITC in April 2023.  
		                        		
		                        			Results:
		                        			This report elaborates on the clinical preparation for adopting CIRT in Korea. It includes an extensive description of HITC’s facility layout at YCC, which comprises the accelerator and treatment rooms. Furthermore, this report delineates the clinical workflow, criteria for CIRT application, and the rigorous quality assurance processes implemented at YCC. It highlights YCC’s sophisticated radiation therapy infrastructure, collaborative initiatives, and the efficacious treatment of >200 prostate cancer cases utilizing CIRT.  
		                        		
		                        			Conclusion
		                        			This manuscript concludes by discussing the prospective influence of CIRT on the medical domain within Korea, spotlighting YCC’s pioneering contribution and forecasting the widespread integration of this groundbreaking technology. 
		                        		
		                        		
		                        		
		                        	
9.Clinical indications and future directions of carbonion radiotherapy: a narrative review
Seo Hee CHOI ; Woong Sub KOOM ; Hong In YOON ; Kyung Hwan KIM ; Chan Woo WEE ; Jaeho CHO ; Yong Bae KIM ; Ki Chang KEUM ; Ik Jae LEE
The Ewha Medical Journal 2024;47(4):e56-
		                        		
		                        			
		                        			 Carbon-ion radiotherapy (CIRT) offers superior dose distributions and greater biological effectiveness than conventional photon-based radiotherapy (RT). Due to its higher linear energy transfer and relative biological effectiveness, CIRT is particularly effective against radioresistant tumors and those located near critical organs. Since the first dedicated CIRT facility was established in Japan in 1994, CIRT has demonstrated remarkable efficacy against various malignancies, including head and neck tumors, skull base and upper cervical spine tumors, non-small-cell lung cancer, hepatocellular carcinoma, pancreatic cancer, prostate cancer, and bone and soft tissue sarcomas. This narrative review provides a comprehensive overview of the current status of CIRT, highlighting its clinical indications and future directions. According to clinical studies, CIRT achieves high local control rates with manageable toxicity across multiple cancer types. For instance, in head and neck tumors (e.g., adenoid cystic carcinoma and mucosal melanoma), CIRT has achieved local control rates exceeding 80%. In early-stage non-small-cell lung cancer, CIRT has resulted in local control rates over 90% with minimal toxicity. Moreover, CIRT has shown promise in treating challenging cases of hepatocellular carcinoma and pancreatic cancer, where conventional therapies are limited. Nonetheless, the global adoption of CIRT remains limited due to high costs and complexity. Future directions include conducting randomized controlled trials to establish high-level evidence, integrating new technologies such as ultrahigh-dose-rate (FLASH) therapy, and expanding CIRT facilities globally with strategic planning and cost-effectiveness analyses. If these challenges are addressed, CIRT is poised to play a transformative role in cancer treatment, improving survival rates and the quality of life. 
		                        		
		                        		
		                        		
		                        	
10.The first Korean carbon-ion radiation therapy facility: current status of the Heavy-ion Therapy Center at the Yonsei Cancer Center
Min Cheol HAN ; Seo Hee CHOI ; Chae-Seon HONG ; Yong Bae KIM ; Woong Sub KOOM ; Jin Sung KIM ; Jaeho CHO ; Chan Woo WEE ; Changhwan KIM ; Jong Won PARK ; Soorim HAN ; Heejeong LEE ; Hong In YOON ; Ik Jae LEE ; Ki Chang KEUM
Radiation Oncology Journal 2024;42(4):295-307
		                        		
		                        			 Purpose:
		                        			This report offers a detailed examination of the inception and current state of the Heavy-ion Therapy Center (HITC) at the Yonsei Cancer Center (YCC), setting it apart as the world’s first center equipped with a fixed beam and two superconducting gantries for carbon-ion radiation therapy (CIRT).  
		                        		
		                        			Materials and Methods:
		                        			Preparations for CIRT at YCC began in 2013; accordingly, this center has completed a decade of meticulous planning and culminating since the operational commencement of the HITC in April 2023.  
		                        		
		                        			Results:
		                        			This report elaborates on the clinical preparation for adopting CIRT in Korea. It includes an extensive description of HITC’s facility layout at YCC, which comprises the accelerator and treatment rooms. Furthermore, this report delineates the clinical workflow, criteria for CIRT application, and the rigorous quality assurance processes implemented at YCC. It highlights YCC’s sophisticated radiation therapy infrastructure, collaborative initiatives, and the efficacious treatment of >200 prostate cancer cases utilizing CIRT.  
		                        		
		                        			Conclusion
		                        			This manuscript concludes by discussing the prospective influence of CIRT on the medical domain within Korea, spotlighting YCC’s pioneering contribution and forecasting the widespread integration of this groundbreaking technology. 
		                        		
		                        		
		                        		
		                        	
            
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