1.Now is the prime time to publicize the national screening of prostate cancer in Korea
Journal of the Korean Medical Association 2025;68(4):198-203
Prostate cancer (PCa) typically occurs in older adults and generally has a relatively long survival period, making it challenging to demonstrate the effectiveness of treatment. In 2012, medical guidelines recommending against PCa screening using prostate-specific antigen (PSA) became widespread, as randomized controlled trials had not consistently shown survival benefits.Current concepts: In South Korea, awareness of PCa has historically been very low, and the rate of PSA test screening has consequently been lower than that in other major developed countries. Additionally, PSA screening has tended to occur within a limited framework accessible only to individuals already aware of the test. Given that PCa is a high-risk cancer predominantly affecting older men in South Korea, unconditionally following medical guidelines from the 2010s that took a negative stance toward PSA screening may exacerbate health inequalities, increase metastatic cancer incidence, and elevate cancer-specific mortality, particularly in light of Korea’s rapidly aging population. Thus, recent shifts in clinical guidelines in the early 2020s, advocating the proactive implementation of PSA-based screening tests as announced by various countries, are significant. These shifts provide additional support for policy responses aligned with Korea’s epidemiological context. Discussion and conclusion: We advocate for increased public discourse on national PCa screening policies. Such policies should be rationally designed to reduce the incidence of high-risk PCa while minimizing the potential harms associated with overdiagnosis and overtreatment.
2.The Older the Patients, the More Aggressive the Prostate Cancer Detected Even Among Those With a Prostate-Specific Antigen Level Below the Low-Risk Threshold: Analysis Using Nationwide Korean Data
Jong Hyun PYUN ; Young Hwii KO ; Sang Won KIM ; Sung Gu KANG ; Nak-Hoon SON
Journal of Korean Medical Science 2025;40(15):e57-
Background:
To investigate the clinicopathologic pattern of prostate cancer (PCa) in elderly patients compared with their younger counterparts with a prostate-specific antigen (PSA) level below the low-risk threshold (< 10 ng/mL), which is often a deciding factor for biopsy.
Methods:
A nationwide database of PCa at the time of biopsy from 2010 to 2020 was constructed from 39 hospitals. Patients were categorized into age groups of < 64 years, 65–69 years, 70–74 years, and ≥ 75 years considering guidelines that recommend PSA testing only for those aged 55–69 years during the study period, the average age of Korean PCa registrants of 70.3 years (2010–2020), and the average life expectancy of Korean males of 80.3 years (2020).
Results:
The mean ± standard deviation age was 70.3 ± 8.2 years, which was normally distributed (kurtosis = 0.095). Among 14,548 subjects, 54.1%, 39.5%, and 6.4% of them had high-risk disease, intermediate-risk disease, and low-risk disease, respectively. Based on three risk parameters, a marked increase in high-risk cancer was observed in the oldest age group (linear combination, P < 0.001). The same pattern was observed among patients with low-risk disease (PSA < 10 ng/mL), who were divided into PSA tiers as follows: 4–5 ng/mL (P < 0.001), 5–6 ng/mL (P < 0.001), 6–7 ng/mL (P < 0.001), 7–8 ng/mL (P < 0.001), 8–9 ng/mL (P = 0.009), and 9–10 ng/mL (P < 0.001). In all PSA tiers between 4 and 10 ng/mL, multivariate analysis demonstrated a significantly higher prevalence of high-risk cancer in the oldest age group than in the youngest age group. In the lowest tier (4–5 ng/mL), 35.2% of those aged over 75 years had high-risk PCa.
Conclusion
The older the patient, the more aggressive the PCa. Moreover, there was an increase in high-risk PCa in older males compared with younger males even with a PSA level below the low-risk threshold of 10 ng/mL, suggesting the need to strengthen cancer screening policies in the older population.
3.The Older the Patients, the More Aggressive the Prostate Cancer Detected Even Among Those With a Prostate-Specific Antigen Level Below the Low-Risk Threshold: Analysis Using Nationwide Korean Data
Jong Hyun PYUN ; Young Hwii KO ; Sang Won KIM ; Sung Gu KANG ; Nak-Hoon SON
Journal of Korean Medical Science 2025;40(15):e57-
Background:
To investigate the clinicopathologic pattern of prostate cancer (PCa) in elderly patients compared with their younger counterparts with a prostate-specific antigen (PSA) level below the low-risk threshold (< 10 ng/mL), which is often a deciding factor for biopsy.
Methods:
A nationwide database of PCa at the time of biopsy from 2010 to 2020 was constructed from 39 hospitals. Patients were categorized into age groups of < 64 years, 65–69 years, 70–74 years, and ≥ 75 years considering guidelines that recommend PSA testing only for those aged 55–69 years during the study period, the average age of Korean PCa registrants of 70.3 years (2010–2020), and the average life expectancy of Korean males of 80.3 years (2020).
Results:
The mean ± standard deviation age was 70.3 ± 8.2 years, which was normally distributed (kurtosis = 0.095). Among 14,548 subjects, 54.1%, 39.5%, and 6.4% of them had high-risk disease, intermediate-risk disease, and low-risk disease, respectively. Based on three risk parameters, a marked increase in high-risk cancer was observed in the oldest age group (linear combination, P < 0.001). The same pattern was observed among patients with low-risk disease (PSA < 10 ng/mL), who were divided into PSA tiers as follows: 4–5 ng/mL (P < 0.001), 5–6 ng/mL (P < 0.001), 6–7 ng/mL (P < 0.001), 7–8 ng/mL (P < 0.001), 8–9 ng/mL (P = 0.009), and 9–10 ng/mL (P < 0.001). In all PSA tiers between 4 and 10 ng/mL, multivariate analysis demonstrated a significantly higher prevalence of high-risk cancer in the oldest age group than in the youngest age group. In the lowest tier (4–5 ng/mL), 35.2% of those aged over 75 years had high-risk PCa.
Conclusion
The older the patient, the more aggressive the PCa. Moreover, there was an increase in high-risk PCa in older males compared with younger males even with a PSA level below the low-risk threshold of 10 ng/mL, suggesting the need to strengthen cancer screening policies in the older population.
4.The Older the Patients, the More Aggressive the Prostate Cancer Detected Even Among Those With a Prostate-Specific Antigen Level Below the Low-Risk Threshold: Analysis Using Nationwide Korean Data
Jong Hyun PYUN ; Young Hwii KO ; Sang Won KIM ; Sung Gu KANG ; Nak-Hoon SON
Journal of Korean Medical Science 2025;40(15):e57-
Background:
To investigate the clinicopathologic pattern of prostate cancer (PCa) in elderly patients compared with their younger counterparts with a prostate-specific antigen (PSA) level below the low-risk threshold (< 10 ng/mL), which is often a deciding factor for biopsy.
Methods:
A nationwide database of PCa at the time of biopsy from 2010 to 2020 was constructed from 39 hospitals. Patients were categorized into age groups of < 64 years, 65–69 years, 70–74 years, and ≥ 75 years considering guidelines that recommend PSA testing only for those aged 55–69 years during the study period, the average age of Korean PCa registrants of 70.3 years (2010–2020), and the average life expectancy of Korean males of 80.3 years (2020).
Results:
The mean ± standard deviation age was 70.3 ± 8.2 years, which was normally distributed (kurtosis = 0.095). Among 14,548 subjects, 54.1%, 39.5%, and 6.4% of them had high-risk disease, intermediate-risk disease, and low-risk disease, respectively. Based on three risk parameters, a marked increase in high-risk cancer was observed in the oldest age group (linear combination, P < 0.001). The same pattern was observed among patients with low-risk disease (PSA < 10 ng/mL), who were divided into PSA tiers as follows: 4–5 ng/mL (P < 0.001), 5–6 ng/mL (P < 0.001), 6–7 ng/mL (P < 0.001), 7–8 ng/mL (P < 0.001), 8–9 ng/mL (P = 0.009), and 9–10 ng/mL (P < 0.001). In all PSA tiers between 4 and 10 ng/mL, multivariate analysis demonstrated a significantly higher prevalence of high-risk cancer in the oldest age group than in the youngest age group. In the lowest tier (4–5 ng/mL), 35.2% of those aged over 75 years had high-risk PCa.
Conclusion
The older the patient, the more aggressive the PCa. Moreover, there was an increase in high-risk PCa in older males compared with younger males even with a PSA level below the low-risk threshold of 10 ng/mL, suggesting the need to strengthen cancer screening policies in the older population.
5.Now is the prime time to publicize the national screening of prostate cancer in Korea
Journal of the Korean Medical Association 2025;68(4):198-203
Prostate cancer (PCa) typically occurs in older adults and generally has a relatively long survival period, making it challenging to demonstrate the effectiveness of treatment. In 2012, medical guidelines recommending against PCa screening using prostate-specific antigen (PSA) became widespread, as randomized controlled trials had not consistently shown survival benefits.Current concepts: In South Korea, awareness of PCa has historically been very low, and the rate of PSA test screening has consequently been lower than that in other major developed countries. Additionally, PSA screening has tended to occur within a limited framework accessible only to individuals already aware of the test. Given that PCa is a high-risk cancer predominantly affecting older men in South Korea, unconditionally following medical guidelines from the 2010s that took a negative stance toward PSA screening may exacerbate health inequalities, increase metastatic cancer incidence, and elevate cancer-specific mortality, particularly in light of Korea’s rapidly aging population. Thus, recent shifts in clinical guidelines in the early 2020s, advocating the proactive implementation of PSA-based screening tests as announced by various countries, are significant. These shifts provide additional support for policy responses aligned with Korea’s epidemiological context. Discussion and conclusion: We advocate for increased public discourse on national PCa screening policies. Such policies should be rationally designed to reduce the incidence of high-risk PCa while minimizing the potential harms associated with overdiagnosis and overtreatment.
6.The Older the Patients, the More Aggressive the Prostate Cancer Detected Even Among Those With a Prostate-Specific Antigen Level Below the Low-Risk Threshold: Analysis Using Nationwide Korean Data
Jong Hyun PYUN ; Young Hwii KO ; Sang Won KIM ; Sung Gu KANG ; Nak-Hoon SON
Journal of Korean Medical Science 2025;40(15):e57-
Background:
To investigate the clinicopathologic pattern of prostate cancer (PCa) in elderly patients compared with their younger counterparts with a prostate-specific antigen (PSA) level below the low-risk threshold (< 10 ng/mL), which is often a deciding factor for biopsy.
Methods:
A nationwide database of PCa at the time of biopsy from 2010 to 2020 was constructed from 39 hospitals. Patients were categorized into age groups of < 64 years, 65–69 years, 70–74 years, and ≥ 75 years considering guidelines that recommend PSA testing only for those aged 55–69 years during the study period, the average age of Korean PCa registrants of 70.3 years (2010–2020), and the average life expectancy of Korean males of 80.3 years (2020).
Results:
The mean ± standard deviation age was 70.3 ± 8.2 years, which was normally distributed (kurtosis = 0.095). Among 14,548 subjects, 54.1%, 39.5%, and 6.4% of them had high-risk disease, intermediate-risk disease, and low-risk disease, respectively. Based on three risk parameters, a marked increase in high-risk cancer was observed in the oldest age group (linear combination, P < 0.001). The same pattern was observed among patients with low-risk disease (PSA < 10 ng/mL), who were divided into PSA tiers as follows: 4–5 ng/mL (P < 0.001), 5–6 ng/mL (P < 0.001), 6–7 ng/mL (P < 0.001), 7–8 ng/mL (P < 0.001), 8–9 ng/mL (P = 0.009), and 9–10 ng/mL (P < 0.001). In all PSA tiers between 4 and 10 ng/mL, multivariate analysis demonstrated a significantly higher prevalence of high-risk cancer in the oldest age group than in the youngest age group. In the lowest tier (4–5 ng/mL), 35.2% of those aged over 75 years had high-risk PCa.
Conclusion
The older the patient, the more aggressive the PCa. Moreover, there was an increase in high-risk PCa in older males compared with younger males even with a PSA level below the low-risk threshold of 10 ng/mL, suggesting the need to strengthen cancer screening policies in the older population.
7.Now is the prime time to publicize the national screening of prostate cancer in Korea
Journal of the Korean Medical Association 2025;68(4):198-203
Prostate cancer (PCa) typically occurs in older adults and generally has a relatively long survival period, making it challenging to demonstrate the effectiveness of treatment. In 2012, medical guidelines recommending against PCa screening using prostate-specific antigen (PSA) became widespread, as randomized controlled trials had not consistently shown survival benefits.Current concepts: In South Korea, awareness of PCa has historically been very low, and the rate of PSA test screening has consequently been lower than that in other major developed countries. Additionally, PSA screening has tended to occur within a limited framework accessible only to individuals already aware of the test. Given that PCa is a high-risk cancer predominantly affecting older men in South Korea, unconditionally following medical guidelines from the 2010s that took a negative stance toward PSA screening may exacerbate health inequalities, increase metastatic cancer incidence, and elevate cancer-specific mortality, particularly in light of Korea’s rapidly aging population. Thus, recent shifts in clinical guidelines in the early 2020s, advocating the proactive implementation of PSA-based screening tests as announced by various countries, are significant. These shifts provide additional support for policy responses aligned with Korea’s epidemiological context. Discussion and conclusion: We advocate for increased public discourse on national PCa screening policies. Such policies should be rationally designed to reduce the incidence of high-risk PCa while minimizing the potential harms associated with overdiagnosis and overtreatment.
8.Sites of Metastasis and Survival in Metastatic Renal Cell Carcinoma:Results From the Korean Renal Cancer Study Group Database
Chan Ho LEE ; Minyong KANG ; Cheol KWAK ; Young Hwii KO ; Jung Kwon KIM ; Jae Young PARK ; Seokhwan BANG ; Seong Il SEO ; Jungyo SUH ; Wan SONG ; Cheryn SONG ; Hyung Ho LEE ; Jinsoo CHUNG ; Chang Wook JEONG ; Jung Ki JO ; Seock Hwan CHOI ; Joongwon CHOI ; Changil CHOI ; Seol Ho CHOO ; Jang Hee HAN ; Sung-Hoo HONG ; Eu Chang HWANG
Journal of Korean Medical Science 2024;39(45):e293-
Background:
In patients with metastatic renal cell carcinoma (mRCC), sites of metastatic involvement have been reported to be associated with a difference in survival. However, the frequency and survival according to different sites of metastases in Korean patients with mRCC remain unclear. Therefore, this study aimed to assess the frequency of metastatic site involvement and the association between sites of metastatic involvement and survival in Korean patients with mRCC.
Methods:
This retrospective study used the multicenter cohort of the Korean Renal Cancer Study Group mRCC database to identify patients who started targeted therapy between December 2005 and March 2018. Data on the frequency of metastatic organ involvement at the time of mRCC diagnosis and oncologic outcomes according to different sites of metastasis were analyzed.
Results:
A total of 1,761 patients were eligible for analysis. Of the 1,761 patients, 1,564 (88.8%) had clear cell RCC, and 1,040 (59.1%) had synchronous metastasis. The median number of metastasis sites was 2 (interquartile range [IQR], 1–6). The median age at the initiation of systemic therapy was 60 years (IQR, 29–88), 1,380 (78.4%) were men, and 1,341 (76.1%) underwent nephrectomy. Based on the International Metastatic Renal Cell Carcinoma Database Consortium model, patients were stratified into favorable-, intermediate-, and poor-risk groups with 359 (20.4%), 1,092 (62.0%), and 310 (17.6%) patients, respectively. The lung (70.9%), lymph nodes (37.9%), bone (30.7%), liver (12.7%), adrenal gland (9.8%), and brain (8.2%) were the most common sites of metastasis, followed by the pancreas, pleura, peritoneum, spleen, thyroid, and bowel. Among the most common sites of metastasis (> 5%), the median cancer-specific survival (CSS) ranged from 13.9 (liver) to 29.1 months (lung). An association was observed between liver, bone, and pleural metastases and the shortest median CSS (< 19 months).
Conclusion
In Korean patients with mRCC, metastases to the lung, lymph nodes, bone, liver, adrenal gland, and brain were more frequent than those to other organs. Metastases to the liver, bone, and pleura were associated with poor CSS. The findings of this study may be valuable for patient counseling and guiding future study designs.
9.Sites of Metastasis and Survival in Metastatic Renal Cell Carcinoma:Results From the Korean Renal Cancer Study Group Database
Chan Ho LEE ; Minyong KANG ; Cheol KWAK ; Young Hwii KO ; Jung Kwon KIM ; Jae Young PARK ; Seokhwan BANG ; Seong Il SEO ; Jungyo SUH ; Wan SONG ; Cheryn SONG ; Hyung Ho LEE ; Jinsoo CHUNG ; Chang Wook JEONG ; Jung Ki JO ; Seock Hwan CHOI ; Joongwon CHOI ; Changil CHOI ; Seol Ho CHOO ; Jang Hee HAN ; Sung-Hoo HONG ; Eu Chang HWANG
Journal of Korean Medical Science 2024;39(45):e293-
Background:
In patients with metastatic renal cell carcinoma (mRCC), sites of metastatic involvement have been reported to be associated with a difference in survival. However, the frequency and survival according to different sites of metastases in Korean patients with mRCC remain unclear. Therefore, this study aimed to assess the frequency of metastatic site involvement and the association between sites of metastatic involvement and survival in Korean patients with mRCC.
Methods:
This retrospective study used the multicenter cohort of the Korean Renal Cancer Study Group mRCC database to identify patients who started targeted therapy between December 2005 and March 2018. Data on the frequency of metastatic organ involvement at the time of mRCC diagnosis and oncologic outcomes according to different sites of metastasis were analyzed.
Results:
A total of 1,761 patients were eligible for analysis. Of the 1,761 patients, 1,564 (88.8%) had clear cell RCC, and 1,040 (59.1%) had synchronous metastasis. The median number of metastasis sites was 2 (interquartile range [IQR], 1–6). The median age at the initiation of systemic therapy was 60 years (IQR, 29–88), 1,380 (78.4%) were men, and 1,341 (76.1%) underwent nephrectomy. Based on the International Metastatic Renal Cell Carcinoma Database Consortium model, patients were stratified into favorable-, intermediate-, and poor-risk groups with 359 (20.4%), 1,092 (62.0%), and 310 (17.6%) patients, respectively. The lung (70.9%), lymph nodes (37.9%), bone (30.7%), liver (12.7%), adrenal gland (9.8%), and brain (8.2%) were the most common sites of metastasis, followed by the pancreas, pleura, peritoneum, spleen, thyroid, and bowel. Among the most common sites of metastasis (> 5%), the median cancer-specific survival (CSS) ranged from 13.9 (liver) to 29.1 months (lung). An association was observed between liver, bone, and pleural metastases and the shortest median CSS (< 19 months).
Conclusion
In Korean patients with mRCC, metastases to the lung, lymph nodes, bone, liver, adrenal gland, and brain were more frequent than those to other organs. Metastases to the liver, bone, and pleura were associated with poor CSS. The findings of this study may be valuable for patient counseling and guiding future study designs.
10.Four trocar configurations for robot-assisted radical prostatectomy for da Vinci SP devices:Comparison of pros and cons and pricing
Young Hwii KO ; Byung Hoon KIM ; Sung Gu KANG ; Kwang Hyun KIM ; Jongsoo LEE ; Sung-Hoo HONG ; COSPUS (Consortium of Single Port Urologic Surgery)
Investigative and Clinical Urology 2024;65(3):311-314

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