1.Study Protocol of Expanded Multicenter Prospective Cohort Study of Active Surveillance on Papillary Thyroid Microcarcinoma (MAeSTro-EXP)
Jae Hoon MOON ; Eun Kyung LEE ; Wonjae CHA ; Young Jun CHAI ; Sun Wook CHO ; June Young CHOI ; Sung Yong CHOI ; A Jung CHU ; Eun-Jae CHUNG ; Yul HWANGBO ; Woo-Jin JEONG ; Yuh-Seog JUNG ; Kyungsik KIM ; Min Joo KIM ; Su-jin KIM ; Woochul KIM ; Yoo Hyung KIM ; Chang Yoon LEE ; Ji Ye LEE ; Kyu Eun LEE ; Young Ki LEE ; Hunjong LIM ; Do Joon PARK ; Sue K. PARK ; Chang Hwan RYU ; Junsun RYU ; Jungirl SEOK ; Young Shin SONG ; Ka Hee YI ; Hyeong Won YU ; Eleanor WHITE ; Katerina MASTROCOSTAS ; Roderick J. CLIFTON-BLIGH ; Anthony GLOVER ; Matti L. GILD ; Ji-hoon KIM ; Young Joo PARK
Endocrinology and Metabolism 2025;40(2):236-246
		                        		
		                        			 Background:
		                        			Active surveillance (AS) has emerged as a viable management strategy for low-risk papillary thyroid microcarcinoma (PTMC), following pioneering trials at Kuma Hospital and the Cancer Institute Hospital in Japan. Numerous prospective cohort studies have since validated AS as a management option for low-risk PTMC, leading to its inclusion in thyroid cancer guidelines across various countries. From 2016 to 2020, the Multicenter Prospective Cohort Study of Active Surveillance on Papillary Thyroid Microcarcinoma (MAeSTro) enrolled 1,177 patients, providing comprehensive data on PTMC progression, sonographic predictors of progression, quality of life, surgical outcomes, and cost-effectiveness when comparing AS to immediate surgery. The second phase of MAeSTro (MAeSTro-EXP) expands AS to low-risk papillary thyroid carcinoma (PTC) tumors larger than 1 cm, driven by the hypothesis that overall risk assessment outweighs absolute tumor size in surgical decision-making. 
		                        		
		                        			Methods:
		                        			This protocol aims to address whether limiting AS to tumors smaller than 1 cm may result in unnecessary surgeries for low-risk PTCs detected during their rapid initial growth phase. By expanding the AS criteria to include tumors up to 1.5 cm, while simultaneously refining and standardizing the criteria for risk assessment and disease progression, we aim to minimize overtreatment and maintain rigorous monitoring to improve patient outcomes. 
		                        		
		                        			Conclusion
		                        			This study will contribute to optimizing AS guidelines and enhance our understanding of the natural course and appropriate management of low-risk PTCs. Additionally, MAeSTro-EXP involves a multinational collaboration between South Korea and Australia. This cross-country study aims to identify cultural and racial differences in the management of low-risk PTC, thereby enriching the global understanding of AS practices and their applicability across diverse populations. 
		                        		
		                        		
		                        		
		                        	
2.Study Protocol of Expanded Multicenter Prospective Cohort Study of Active Surveillance on Papillary Thyroid Microcarcinoma (MAeSTro-EXP)
Jae Hoon MOON ; Eun Kyung LEE ; Wonjae CHA ; Young Jun CHAI ; Sun Wook CHO ; June Young CHOI ; Sung Yong CHOI ; A Jung CHU ; Eun-Jae CHUNG ; Yul HWANGBO ; Woo-Jin JEONG ; Yuh-Seog JUNG ; Kyungsik KIM ; Min Joo KIM ; Su-jin KIM ; Woochul KIM ; Yoo Hyung KIM ; Chang Yoon LEE ; Ji Ye LEE ; Kyu Eun LEE ; Young Ki LEE ; Hunjong LIM ; Do Joon PARK ; Sue K. PARK ; Chang Hwan RYU ; Junsun RYU ; Jungirl SEOK ; Young Shin SONG ; Ka Hee YI ; Hyeong Won YU ; Eleanor WHITE ; Katerina MASTROCOSTAS ; Roderick J. CLIFTON-BLIGH ; Anthony GLOVER ; Matti L. GILD ; Ji-hoon KIM ; Young Joo PARK
Endocrinology and Metabolism 2025;40(2):236-246
		                        		
		                        			 Background:
		                        			Active surveillance (AS) has emerged as a viable management strategy for low-risk papillary thyroid microcarcinoma (PTMC), following pioneering trials at Kuma Hospital and the Cancer Institute Hospital in Japan. Numerous prospective cohort studies have since validated AS as a management option for low-risk PTMC, leading to its inclusion in thyroid cancer guidelines across various countries. From 2016 to 2020, the Multicenter Prospective Cohort Study of Active Surveillance on Papillary Thyroid Microcarcinoma (MAeSTro) enrolled 1,177 patients, providing comprehensive data on PTMC progression, sonographic predictors of progression, quality of life, surgical outcomes, and cost-effectiveness when comparing AS to immediate surgery. The second phase of MAeSTro (MAeSTro-EXP) expands AS to low-risk papillary thyroid carcinoma (PTC) tumors larger than 1 cm, driven by the hypothesis that overall risk assessment outweighs absolute tumor size in surgical decision-making. 
		                        		
		                        			Methods:
		                        			This protocol aims to address whether limiting AS to tumors smaller than 1 cm may result in unnecessary surgeries for low-risk PTCs detected during their rapid initial growth phase. By expanding the AS criteria to include tumors up to 1.5 cm, while simultaneously refining and standardizing the criteria for risk assessment and disease progression, we aim to minimize overtreatment and maintain rigorous monitoring to improve patient outcomes. 
		                        		
		                        			Conclusion
		                        			This study will contribute to optimizing AS guidelines and enhance our understanding of the natural course and appropriate management of low-risk PTCs. Additionally, MAeSTro-EXP involves a multinational collaboration between South Korea and Australia. This cross-country study aims to identify cultural and racial differences in the management of low-risk PTC, thereby enriching the global understanding of AS practices and their applicability across diverse populations. 
		                        		
		                        		
		                        		
		                        	
3.Study Protocol of Expanded Multicenter Prospective Cohort Study of Active Surveillance on Papillary Thyroid Microcarcinoma (MAeSTro-EXP)
Jae Hoon MOON ; Eun Kyung LEE ; Wonjae CHA ; Young Jun CHAI ; Sun Wook CHO ; June Young CHOI ; Sung Yong CHOI ; A Jung CHU ; Eun-Jae CHUNG ; Yul HWANGBO ; Woo-Jin JEONG ; Yuh-Seog JUNG ; Kyungsik KIM ; Min Joo KIM ; Su-jin KIM ; Woochul KIM ; Yoo Hyung KIM ; Chang Yoon LEE ; Ji Ye LEE ; Kyu Eun LEE ; Young Ki LEE ; Hunjong LIM ; Do Joon PARK ; Sue K. PARK ; Chang Hwan RYU ; Junsun RYU ; Jungirl SEOK ; Young Shin SONG ; Ka Hee YI ; Hyeong Won YU ; Eleanor WHITE ; Katerina MASTROCOSTAS ; Roderick J. CLIFTON-BLIGH ; Anthony GLOVER ; Matti L. GILD ; Ji-hoon KIM ; Young Joo PARK
Endocrinology and Metabolism 2025;40(2):236-246
		                        		
		                        			 Background:
		                        			Active surveillance (AS) has emerged as a viable management strategy for low-risk papillary thyroid microcarcinoma (PTMC), following pioneering trials at Kuma Hospital and the Cancer Institute Hospital in Japan. Numerous prospective cohort studies have since validated AS as a management option for low-risk PTMC, leading to its inclusion in thyroid cancer guidelines across various countries. From 2016 to 2020, the Multicenter Prospective Cohort Study of Active Surveillance on Papillary Thyroid Microcarcinoma (MAeSTro) enrolled 1,177 patients, providing comprehensive data on PTMC progression, sonographic predictors of progression, quality of life, surgical outcomes, and cost-effectiveness when comparing AS to immediate surgery. The second phase of MAeSTro (MAeSTro-EXP) expands AS to low-risk papillary thyroid carcinoma (PTC) tumors larger than 1 cm, driven by the hypothesis that overall risk assessment outweighs absolute tumor size in surgical decision-making. 
		                        		
		                        			Methods:
		                        			This protocol aims to address whether limiting AS to tumors smaller than 1 cm may result in unnecessary surgeries for low-risk PTCs detected during their rapid initial growth phase. By expanding the AS criteria to include tumors up to 1.5 cm, while simultaneously refining and standardizing the criteria for risk assessment and disease progression, we aim to minimize overtreatment and maintain rigorous monitoring to improve patient outcomes. 
		                        		
		                        			Conclusion
		                        			This study will contribute to optimizing AS guidelines and enhance our understanding of the natural course and appropriate management of low-risk PTCs. Additionally, MAeSTro-EXP involves a multinational collaboration between South Korea and Australia. This cross-country study aims to identify cultural and racial differences in the management of low-risk PTC, thereby enriching the global understanding of AS practices and their applicability across diverse populations. 
		                        		
		                        		
		                        		
		                        	
4.Study Protocol of Expanded Multicenter Prospective Cohort Study of Active Surveillance on Papillary Thyroid Microcarcinoma (MAeSTro-EXP)
Jae Hoon MOON ; Eun Kyung LEE ; Wonjae CHA ; Young Jun CHAI ; Sun Wook CHO ; June Young CHOI ; Sung Yong CHOI ; A Jung CHU ; Eun-Jae CHUNG ; Yul HWANGBO ; Woo-Jin JEONG ; Yuh-Seog JUNG ; Kyungsik KIM ; Min Joo KIM ; Su-jin KIM ; Woochul KIM ; Yoo Hyung KIM ; Chang Yoon LEE ; Ji Ye LEE ; Kyu Eun LEE ; Young Ki LEE ; Hunjong LIM ; Do Joon PARK ; Sue K. PARK ; Chang Hwan RYU ; Junsun RYU ; Jungirl SEOK ; Young Shin SONG ; Ka Hee YI ; Hyeong Won YU ; Eleanor WHITE ; Katerina MASTROCOSTAS ; Roderick J. CLIFTON-BLIGH ; Anthony GLOVER ; Matti L. GILD ; Ji-hoon KIM ; Young Joo PARK
Endocrinology and Metabolism 2025;40(2):236-246
		                        		
		                        			 Background:
		                        			Active surveillance (AS) has emerged as a viable management strategy for low-risk papillary thyroid microcarcinoma (PTMC), following pioneering trials at Kuma Hospital and the Cancer Institute Hospital in Japan. Numerous prospective cohort studies have since validated AS as a management option for low-risk PTMC, leading to its inclusion in thyroid cancer guidelines across various countries. From 2016 to 2020, the Multicenter Prospective Cohort Study of Active Surveillance on Papillary Thyroid Microcarcinoma (MAeSTro) enrolled 1,177 patients, providing comprehensive data on PTMC progression, sonographic predictors of progression, quality of life, surgical outcomes, and cost-effectiveness when comparing AS to immediate surgery. The second phase of MAeSTro (MAeSTro-EXP) expands AS to low-risk papillary thyroid carcinoma (PTC) tumors larger than 1 cm, driven by the hypothesis that overall risk assessment outweighs absolute tumor size in surgical decision-making. 
		                        		
		                        			Methods:
		                        			This protocol aims to address whether limiting AS to tumors smaller than 1 cm may result in unnecessary surgeries for low-risk PTCs detected during their rapid initial growth phase. By expanding the AS criteria to include tumors up to 1.5 cm, while simultaneously refining and standardizing the criteria for risk assessment and disease progression, we aim to minimize overtreatment and maintain rigorous monitoring to improve patient outcomes. 
		                        		
		                        			Conclusion
		                        			This study will contribute to optimizing AS guidelines and enhance our understanding of the natural course and appropriate management of low-risk PTCs. Additionally, MAeSTro-EXP involves a multinational collaboration between South Korea and Australia. This cross-country study aims to identify cultural and racial differences in the management of low-risk PTC, thereby enriching the global understanding of AS practices and their applicability across diverse populations. 
		                        		
		                        		
		                        		
		                        	
5.Successive Term Delivery in Women with Stable Human Immunodeficiency Virus Infection: A Case Report
Kyeong Yeon KWON ; Ji Sue SONG ; So Hui PARK ; Seong Hee JEON ; Suk Young KIM ; Joong Sik EOM
Perinatology 2024;35(3):107-111
		                        		
		                        			
		                        			 The study of human immunodeficiency virus (HIV) infection during pregnancy is of great significance because most women are first diagnosed with HIV during pregnancy. Similarly, it is equally important in cases where one or both partners are HIV-positive and wish to conceive. Since the first case of HIV was reported in the 1980s, antiviral drugs have been developed to prevent progression to acquired immunodeficiency syndrome (AIDS), which allows many AIDS patients to be asymptomatic or have only mild symptoms. This case shows that consecutive pregnancies and births are possible through proper antiretroviral therapy along with regular prenatal examinations in HIV-positive women.Rather than recommending contraception or expressing negative opinions about pregnancy in HIV-infected couples, active HIV treatment and prenatal care should be conducted to support a safe pregnancy and lower the chance of vertical HIV transmission. Recently, there has been a case report on successive childbirths of HIV-positive pregnant women who continued to receive antiretroviral therapy after their first childbirth at our hospital. Through this case, we report that safe delivery of HIV-infected mothers is possible, and further subsequent childbirths can be achieved with the use of appropriate antiretroviral therapy. 
		                        		
		                        		
		                        		
		                        	
6.Successive Term Delivery in Women with Stable Human Immunodeficiency Virus Infection: A Case Report
Kyeong Yeon KWON ; Ji Sue SONG ; So Hui PARK ; Seong Hee JEON ; Suk Young KIM ; Joong Sik EOM
Perinatology 2024;35(3):107-111
		                        		
		                        			
		                        			 The study of human immunodeficiency virus (HIV) infection during pregnancy is of great significance because most women are first diagnosed with HIV during pregnancy. Similarly, it is equally important in cases where one or both partners are HIV-positive and wish to conceive. Since the first case of HIV was reported in the 1980s, antiviral drugs have been developed to prevent progression to acquired immunodeficiency syndrome (AIDS), which allows many AIDS patients to be asymptomatic or have only mild symptoms. This case shows that consecutive pregnancies and births are possible through proper antiretroviral therapy along with regular prenatal examinations in HIV-positive women.Rather than recommending contraception or expressing negative opinions about pregnancy in HIV-infected couples, active HIV treatment and prenatal care should be conducted to support a safe pregnancy and lower the chance of vertical HIV transmission. Recently, there has been a case report on successive childbirths of HIV-positive pregnant women who continued to receive antiretroviral therapy after their first childbirth at our hospital. Through this case, we report that safe delivery of HIV-infected mothers is possible, and further subsequent childbirths can be achieved with the use of appropriate antiretroviral therapy. 
		                        		
		                        		
		                        		
		                        	
7.Cancer Patients' and Caregivers' Experiences Admitted to Comprehensive Nursing Care Service Wards: An Exploratory Qualitative Research
Sarah LIM ; Mee Young CHO ; Hyun Joo SHIN ; Ki Yeon SONG ; Soo Kyoung SHIM ; Yoon Jung LEE ; Hea Jin KWON ; Ji Eun KIM ; Hui Ean KIM ; Hyun Ja PARK ; Han Wool AN ; So Jeong HYEON ; Sue KIM
Asian Oncology Nursing 2024;24(4):173-183
		                        		
		                        			 Purpose:
		                        			The purpose of this study was to explore and assess the experiences of cancer patients and their caregivers who had been admitted to comprehensive nursing care service wards.  
		                        		
		                        			Methods:
		                        			Data were collected from 10 patients and 10 caregivers by in-depth interviews. The data were analyzed using content analysis of Downe-Wamboldt.  
		                        		
		                        			Results:
		                        			Three categories and seven subcategories were extracted. 1) Realizing institutional limitations of comprehensive nursing care service: ‘Wishing for precise operating systems based on patient severity,’ ‘Anticipating active caregiver participation in treatment process,’ ‘Requiring a countermeasure for safety accidents,’ 2) Professional nursing service which provides relief: ‘Patient-centered professional nursing service,’ ‘Inpatient service that provides relief for patients and caregivers,’ 3) Anticipating continuous use of the service: ‘Inpatient service which users are willing to reuse,’ ‘Wishing for expansion and reinforcement of the service.’  
		                        		
		                        			Conclusion
		                        			Cancer patients and their caregivers experienced institutional limitations while satisfied with professional nursing service and willing to reuse the service. To improve this situation, institutional support such as separate wards for severe patients, measures for active caregiver participation and prevention of safety accidents, and adequate staffing would be helpful for relatively severe level cancer patients and their caregivers. 
		                        		
		                        		
		                        		
		                        	
8.Successive Term Delivery in Women with Stable Human Immunodeficiency Virus Infection: A Case Report
Kyeong Yeon KWON ; Ji Sue SONG ; So Hui PARK ; Seong Hee JEON ; Suk Young KIM ; Joong Sik EOM
Perinatology 2024;35(3):107-111
		                        		
		                        			
		                        			 The study of human immunodeficiency virus (HIV) infection during pregnancy is of great significance because most women are first diagnosed with HIV during pregnancy. Similarly, it is equally important in cases where one or both partners are HIV-positive and wish to conceive. Since the first case of HIV was reported in the 1980s, antiviral drugs have been developed to prevent progression to acquired immunodeficiency syndrome (AIDS), which allows many AIDS patients to be asymptomatic or have only mild symptoms. This case shows that consecutive pregnancies and births are possible through proper antiretroviral therapy along with regular prenatal examinations in HIV-positive women.Rather than recommending contraception or expressing negative opinions about pregnancy in HIV-infected couples, active HIV treatment and prenatal care should be conducted to support a safe pregnancy and lower the chance of vertical HIV transmission. Recently, there has been a case report on successive childbirths of HIV-positive pregnant women who continued to receive antiretroviral therapy after their first childbirth at our hospital. Through this case, we report that safe delivery of HIV-infected mothers is possible, and further subsequent childbirths can be achieved with the use of appropriate antiretroviral therapy. 
		                        		
		                        		
		                        		
		                        	
9.Cancer Patients' and Caregivers' Experiences Admitted to Comprehensive Nursing Care Service Wards: An Exploratory Qualitative Research
Sarah LIM ; Mee Young CHO ; Hyun Joo SHIN ; Ki Yeon SONG ; Soo Kyoung SHIM ; Yoon Jung LEE ; Hea Jin KWON ; Ji Eun KIM ; Hui Ean KIM ; Hyun Ja PARK ; Han Wool AN ; So Jeong HYEON ; Sue KIM
Asian Oncology Nursing 2024;24(4):173-183
		                        		
		                        			 Purpose:
		                        			The purpose of this study was to explore and assess the experiences of cancer patients and their caregivers who had been admitted to comprehensive nursing care service wards.  
		                        		
		                        			Methods:
		                        			Data were collected from 10 patients and 10 caregivers by in-depth interviews. The data were analyzed using content analysis of Downe-Wamboldt.  
		                        		
		                        			Results:
		                        			Three categories and seven subcategories were extracted. 1) Realizing institutional limitations of comprehensive nursing care service: ‘Wishing for precise operating systems based on patient severity,’ ‘Anticipating active caregiver participation in treatment process,’ ‘Requiring a countermeasure for safety accidents,’ 2) Professional nursing service which provides relief: ‘Patient-centered professional nursing service,’ ‘Inpatient service that provides relief for patients and caregivers,’ 3) Anticipating continuous use of the service: ‘Inpatient service which users are willing to reuse,’ ‘Wishing for expansion and reinforcement of the service.’  
		                        		
		                        			Conclusion
		                        			Cancer patients and their caregivers experienced institutional limitations while satisfied with professional nursing service and willing to reuse the service. To improve this situation, institutional support such as separate wards for severe patients, measures for active caregiver participation and prevention of safety accidents, and adequate staffing would be helpful for relatively severe level cancer patients and their caregivers. 
		                        		
		                        		
		                        		
		                        	
10.Successive Term Delivery in Women with Stable Human Immunodeficiency Virus Infection: A Case Report
Kyeong Yeon KWON ; Ji Sue SONG ; So Hui PARK ; Seong Hee JEON ; Suk Young KIM ; Joong Sik EOM
Perinatology 2024;35(3):107-111
		                        		
		                        			
		                        			 The study of human immunodeficiency virus (HIV) infection during pregnancy is of great significance because most women are first diagnosed with HIV during pregnancy. Similarly, it is equally important in cases where one or both partners are HIV-positive and wish to conceive. Since the first case of HIV was reported in the 1980s, antiviral drugs have been developed to prevent progression to acquired immunodeficiency syndrome (AIDS), which allows many AIDS patients to be asymptomatic or have only mild symptoms. This case shows that consecutive pregnancies and births are possible through proper antiretroviral therapy along with regular prenatal examinations in HIV-positive women.Rather than recommending contraception or expressing negative opinions about pregnancy in HIV-infected couples, active HIV treatment and prenatal care should be conducted to support a safe pregnancy and lower the chance of vertical HIV transmission. Recently, there has been a case report on successive childbirths of HIV-positive pregnant women who continued to receive antiretroviral therapy after their first childbirth at our hospital. Through this case, we report that safe delivery of HIV-infected mothers is possible, and further subsequent childbirths can be achieved with the use of appropriate antiretroviral therapy. 
		                        		
		                        		
		                        		
		                        	
            
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