1.Efficacy of Urovaxom for Improving Chronic Pelvic Pain Syndrome Symptoms in Prostate Cancer Patients Who Underwent Radical Prostatectomy: A Multicenter, Prospective Cohort Study
Jun-Koo KANG ; Yun-Sok HA ; Sungchan PARK ; Tae Gyun KWON ; Tae-Hwan KIM
Urogenital Tract Infection 2025;20(1):42-47
Purpose:
Chronic pelvic pain syndrome (CPPS) is a multifactorial condition that can significantly diminish quality of life. Although some patients have reported persistent pelvic pain after radical prostatectomy (RP), the prevalence and direct causal relationship between CPPS and RP remain unclear. This multicenter prospective study aimed to evaluate the efficacy of Urovaxom for improving CPPS symptoms.
Materials and Methods:
A total of 52 prostate cancer patients who underwent RP were enrolled and administered Urovaxom (60 mg/day) for 12 weeks. Changes in National Institutes of Health Chronic Prostatitis Symptom Index (NIH-CPSI), overactive bladder symptom score (OABSS), International Prostate Symptom Score (IPSS), and inflammation markers (white blood cell [WBC], C-reactive protein [CRP]) were analyzed using the Wilcoxon signed-rank test.
Results:
After 12 weeks of treatment, the NIH-CPSI total score significantly decreased from 19 (interquartile range [IQR], 16–23) to 12.5 (IQR, 8.0–16.8) (p<0.001). The OABSS total score decreased from 8 (IQR, 4–11) to 5 (IQR, 3.0–7.8), and the IPSS total score decreased from 13.5 (IQR, 10.0–22.8) to 10.5 (IQR, 5.0–17.0) (p<0.001). WBC levels showed a slight increase (p=0.028), but the clinical relevance of this change is uncertain and warrants further investigation. CRP changes were not statistically significant (p=0.274).
Conclusions
Urovaxom demonstrated significant efficacy in improving CPPS symptoms, particularly pain and reduced quality of life, in patients following RP. These findings suggest Urovaxom as a potential therapeutic option for CPPS after management using RP.
2.Efficacy of Urovaxom for Improving Chronic Pelvic Pain Syndrome Symptoms in Prostate Cancer Patients Who Underwent Radical Prostatectomy: A Multicenter, Prospective Cohort Study
Jun-Koo KANG ; Yun-Sok HA ; Sungchan PARK ; Tae Gyun KWON ; Tae-Hwan KIM
Urogenital Tract Infection 2025;20(1):42-47
Purpose:
Chronic pelvic pain syndrome (CPPS) is a multifactorial condition that can significantly diminish quality of life. Although some patients have reported persistent pelvic pain after radical prostatectomy (RP), the prevalence and direct causal relationship between CPPS and RP remain unclear. This multicenter prospective study aimed to evaluate the efficacy of Urovaxom for improving CPPS symptoms.
Materials and Methods:
A total of 52 prostate cancer patients who underwent RP were enrolled and administered Urovaxom (60 mg/day) for 12 weeks. Changes in National Institutes of Health Chronic Prostatitis Symptom Index (NIH-CPSI), overactive bladder symptom score (OABSS), International Prostate Symptom Score (IPSS), and inflammation markers (white blood cell [WBC], C-reactive protein [CRP]) were analyzed using the Wilcoxon signed-rank test.
Results:
After 12 weeks of treatment, the NIH-CPSI total score significantly decreased from 19 (interquartile range [IQR], 16–23) to 12.5 (IQR, 8.0–16.8) (p<0.001). The OABSS total score decreased from 8 (IQR, 4–11) to 5 (IQR, 3.0–7.8), and the IPSS total score decreased from 13.5 (IQR, 10.0–22.8) to 10.5 (IQR, 5.0–17.0) (p<0.001). WBC levels showed a slight increase (p=0.028), but the clinical relevance of this change is uncertain and warrants further investigation. CRP changes were not statistically significant (p=0.274).
Conclusions
Urovaxom demonstrated significant efficacy in improving CPPS symptoms, particularly pain and reduced quality of life, in patients following RP. These findings suggest Urovaxom as a potential therapeutic option for CPPS after management using RP.
3.Efficacy of Urovaxom for Improving Chronic Pelvic Pain Syndrome Symptoms in Prostate Cancer Patients Who Underwent Radical Prostatectomy: A Multicenter, Prospective Cohort Study
Jun-Koo KANG ; Yun-Sok HA ; Sungchan PARK ; Tae Gyun KWON ; Tae-Hwan KIM
Urogenital Tract Infection 2025;20(1):42-47
Purpose:
Chronic pelvic pain syndrome (CPPS) is a multifactorial condition that can significantly diminish quality of life. Although some patients have reported persistent pelvic pain after radical prostatectomy (RP), the prevalence and direct causal relationship between CPPS and RP remain unclear. This multicenter prospective study aimed to evaluate the efficacy of Urovaxom for improving CPPS symptoms.
Materials and Methods:
A total of 52 prostate cancer patients who underwent RP were enrolled and administered Urovaxom (60 mg/day) for 12 weeks. Changes in National Institutes of Health Chronic Prostatitis Symptom Index (NIH-CPSI), overactive bladder symptom score (OABSS), International Prostate Symptom Score (IPSS), and inflammation markers (white blood cell [WBC], C-reactive protein [CRP]) were analyzed using the Wilcoxon signed-rank test.
Results:
After 12 weeks of treatment, the NIH-CPSI total score significantly decreased from 19 (interquartile range [IQR], 16–23) to 12.5 (IQR, 8.0–16.8) (p<0.001). The OABSS total score decreased from 8 (IQR, 4–11) to 5 (IQR, 3.0–7.8), and the IPSS total score decreased from 13.5 (IQR, 10.0–22.8) to 10.5 (IQR, 5.0–17.0) (p<0.001). WBC levels showed a slight increase (p=0.028), but the clinical relevance of this change is uncertain and warrants further investigation. CRP changes were not statistically significant (p=0.274).
Conclusions
Urovaxom demonstrated significant efficacy in improving CPPS symptoms, particularly pain and reduced quality of life, in patients following RP. These findings suggest Urovaxom as a potential therapeutic option for CPPS after management using RP.
4.Efficacy of Urovaxom for Improving Chronic Pelvic Pain Syndrome Symptoms in Prostate Cancer Patients Who Underwent Radical Prostatectomy: A Multicenter, Prospective Cohort Study
Jun-Koo KANG ; Yun-Sok HA ; Sungchan PARK ; Tae Gyun KWON ; Tae-Hwan KIM
Urogenital Tract Infection 2025;20(1):42-47
Purpose:
Chronic pelvic pain syndrome (CPPS) is a multifactorial condition that can significantly diminish quality of life. Although some patients have reported persistent pelvic pain after radical prostatectomy (RP), the prevalence and direct causal relationship between CPPS and RP remain unclear. This multicenter prospective study aimed to evaluate the efficacy of Urovaxom for improving CPPS symptoms.
Materials and Methods:
A total of 52 prostate cancer patients who underwent RP were enrolled and administered Urovaxom (60 mg/day) for 12 weeks. Changes in National Institutes of Health Chronic Prostatitis Symptom Index (NIH-CPSI), overactive bladder symptom score (OABSS), International Prostate Symptom Score (IPSS), and inflammation markers (white blood cell [WBC], C-reactive protein [CRP]) were analyzed using the Wilcoxon signed-rank test.
Results:
After 12 weeks of treatment, the NIH-CPSI total score significantly decreased from 19 (interquartile range [IQR], 16–23) to 12.5 (IQR, 8.0–16.8) (p<0.001). The OABSS total score decreased from 8 (IQR, 4–11) to 5 (IQR, 3.0–7.8), and the IPSS total score decreased from 13.5 (IQR, 10.0–22.8) to 10.5 (IQR, 5.0–17.0) (p<0.001). WBC levels showed a slight increase (p=0.028), but the clinical relevance of this change is uncertain and warrants further investigation. CRP changes were not statistically significant (p=0.274).
Conclusions
Urovaxom demonstrated significant efficacy in improving CPPS symptoms, particularly pain and reduced quality of life, in patients following RP. These findings suggest Urovaxom as a potential therapeutic option for CPPS after management using RP.
5.Efficacy of Urovaxom for Improving Chronic Pelvic Pain Syndrome Symptoms in Prostate Cancer Patients Who Underwent Radical Prostatectomy: A Multicenter, Prospective Cohort Study
Jun-Koo KANG ; Yun-Sok HA ; Sungchan PARK ; Tae Gyun KWON ; Tae-Hwan KIM
Urogenital Tract Infection 2025;20(1):42-47
Purpose:
Chronic pelvic pain syndrome (CPPS) is a multifactorial condition that can significantly diminish quality of life. Although some patients have reported persistent pelvic pain after radical prostatectomy (RP), the prevalence and direct causal relationship between CPPS and RP remain unclear. This multicenter prospective study aimed to evaluate the efficacy of Urovaxom for improving CPPS symptoms.
Materials and Methods:
A total of 52 prostate cancer patients who underwent RP were enrolled and administered Urovaxom (60 mg/day) for 12 weeks. Changes in National Institutes of Health Chronic Prostatitis Symptom Index (NIH-CPSI), overactive bladder symptom score (OABSS), International Prostate Symptom Score (IPSS), and inflammation markers (white blood cell [WBC], C-reactive protein [CRP]) were analyzed using the Wilcoxon signed-rank test.
Results:
After 12 weeks of treatment, the NIH-CPSI total score significantly decreased from 19 (interquartile range [IQR], 16–23) to 12.5 (IQR, 8.0–16.8) (p<0.001). The OABSS total score decreased from 8 (IQR, 4–11) to 5 (IQR, 3.0–7.8), and the IPSS total score decreased from 13.5 (IQR, 10.0–22.8) to 10.5 (IQR, 5.0–17.0) (p<0.001). WBC levels showed a slight increase (p=0.028), but the clinical relevance of this change is uncertain and warrants further investigation. CRP changes were not statistically significant (p=0.274).
Conclusions
Urovaxom demonstrated significant efficacy in improving CPPS symptoms, particularly pain and reduced quality of life, in patients following RP. These findings suggest Urovaxom as a potential therapeutic option for CPPS after management using RP.
6.Incidence and mortality of upper tract urothelial carcinoma in Korea: A nationwide population-based study conducted from 2002 to 2020
Seongmin MOON ; Yun-Sok HA ; Mina KIM ; Hoseob KIM ; Won Tae KIM ; Yong-June KIM ; Seok-Joong YUN ; Sang-Cheol LEE ; Ho Won KANG
Investigative and Clinical Urology 2025;66(1):11-17
Purpose:
To describe the incidence and mortality of upper tract urothelial carcinoma (UTUC) from 2002–2020 using data from the Korean National Health Insurance Service, which contains data from the entire Korean population.
Materials and Methods:
Reimbursement records for 43,255 patients diagnosed with primary UTUC (according to the International Classification of Disease 10th revision code C65 and C66) between 2002–2020 were retrieved. The study period was split into four: period I (2002–2005), period II (2006–2010), period III (2011–2015), and period IV (2016–2020). Trends were quantified by calculating the annual percentage change (APC). Mortality data were obtained from the Statistics Korea.
Results:
From 2002–2020, the incidence of UTUC in Korea increased gradually from 9.34 to 11.40 per 100,000 person-years. Although there was a male predominance, the male to female ratio did not change significantly over time; however, age at the time of diagnosis, the comorbidity index, and the proportion of patients undergoing open/laparoscopic surgery increased significantly over time. There was a modest improvement in 5-year survival (both all cause- and cancer-specific) over the study period. Multivariate analysis identified age at diagnosis, sex, the comorbidity index, and open/laparoscopic surgery as being associated with survival.
Conclusions
Between 2002 and 2020, the incidence of UTUC in Korea showed a general upward trend; however, survival outcomes have improved. These representative datasets from the Korean population might provide crucial information that enables clinicians to better understand of the epidemiology of UTUC in Korea.
7.PDK4 expression and tumor aggressiveness in prostate cancer
Eun Hye LEE ; Yun-Sok HA ; Bo Hyun YOON ; Minji JEON ; Dong Jin PARK ; Jiyeon KIM ; Jun-Koo KANG ; Jae-Wook CHUNG ; Bum Soo KIM ; Seock Hwan CHOI ; Hyun Tae KIM ; Tae-Hwan KIM ; Eun Sang YOO ; Tae Gyun KWON
Investigative and Clinical Urology 2025;66(3):227-235
Purpose:
Prostate cancer ranks as the second most common cancer in men globally, representing a significant cause of cancer-related mortality. Metastasis, the spread of cancer cells from the primary site to distant organs, remains a major challenge in managing prostate cancer. Pyruvate dehydrogenase kinase 4 (PDK4) is implicated in the regulation of aerobic glycolysis, emerging as a potential player in various cancers. However, its role in prostate cancer remains unclear. This study aims to analyze PDK4 expression in prostate cancer cells and human samples, and to explore the gene's clinical significance.
Materials and Methods:
PDK4 expression was detected in cell lines and human tissue samples. Migration ability was analyzed using Matrigel-coated invasion chambers. Human samples were obtained from the Kyungpook National University Chilgok Hospital.
Results:
PDK4 expression was elevated in prostate cancer cell lines compared to normal prostate cells, with particularly high levels in DU145 and LnCap cell lines. PDK4 knockdown in these cell lines suppressed their invasion ability, indicating a potential role of PDK4 in prostate cancer metastasis. Furthermore, our results revealed alterations in epithelial-mesenchymal transition markers and downstream signaling molecules following PDK4 suppression, suggesting its involvement in the modulation of invasion-related pathways. Furthermore, PDK4 expression was increased in prostate cancer tissues, especially in castration-resistant prostate cancer, compared to normal prostate tissues, with PSA and PDK4 expression showing a significantly positive correlation.
Conclusions
PDK4 expression in prostate cancer is associated with tumor invasion and castration status. Further validation is needed to demonstrate its effectiveness as a therapeutic target.
8.Gender and Menopause Impact on Recurrence and Cancer-Specific Mortality in Bladder Cancer After Radical Cystectomy: A Retrospective Cohort Study
Jee Soo PARK ; Won Sik JANG ; Jieun HEO ; Won Sik HAM ; Kyung Hwan KIM ; Jong Kil NAM ; Bum-Jin LIM ; Bum Sik HONG ; Wook NAM ; Sangchul LEE ; Jong Jin OH ; Seung Hwan JEONG ; Ja Hyeon KU ; Tae Il NOH ; Sung Gu KANG ; Seok Ho KANG ; Yun-Sok HA ; Tae Gyun KWON ; Tae‑Hwan KIM ; Jongchan KIM ; Geehyun SONG ; Ho Kyung SEO ; Wan SONG ; Hyun Hwan SUNG ; Byong Chang JEONG
Journal of Urologic Oncology 2025;23(1):88-93
Purpose:
Although bladder cancer occurs three to 4 times more frequently in men than in women, the relative number of deaths compared to incidence is higher in women, suggesting that women have a worse prognosis than men. Emerging evidence indicates that the activity of the sex steroid hormone pathway may play a role in bladder cancer development, with demonstrations that both androgens and estrogens have biological effects on bladder cancer in vitro and in vivo. This study investigates the influence of sex and menopausal status on recurrence and cancer-specific death (CSD) in bladder cancer patients undergoing radical cystectomy (RC).
Materials and Methods:
This retrospective analysis included 3,913 patients from the Korean Bladder Cancer Study Group Database who underwent RC between 2010 and 2019. Patients were categorized based on gender and menopausal status (≤50 years: premenopausal; >50 years: postmenopausal). Pathological factors, neoadjuvant chemotherapy, recurrence, and CSD rates were analyzed using chi-square and Fisher exact tests.
Results:
Among the 3,913 patients, 400 (10.2%) were female. Premenopausal females exhibited significantly lower recurrence rates (28.6%) compared to postmenopausal females (45.7%). CSD rates were similarly reduced in premenopausal females (12.0% vs. 22.2% in postmenopausal females). No significant sex differences in recurrence or CSD were observed among premenopausal patients. Pathological T stage, nodal status, and lymphovascular invasion were significantly associated with recurrence in males, while nodal status alone was significant in females. Neoadjuvant chemotherapy was significantly more frequently administered to male patients under the age of 50, while no difference was observed in the administration of neoadjuvant chemotherapy among female patients based on menopausal status.
Conclusion
Hormonal changes associated with menopause significantly influence bladder cancer outcomes in women. Premenopausal hormonal environments seem protective, underscoring the need for further research into hormone-driven mechanisms in bladder cancer.
9.Impact of Extended Lymph Node Dissection on Survival Outcomes in Patients With Bladder Cancer and Upper Tract Urothelial Carcinoma: A Multicenter Retrospective Study
Jiwoong YU ; Wook NAM ; Kyung Hwan KIM ; Yun-Sok HA ; Geehyun SONG ; Ho Kyung SEO ; Jong Kil NAM ; Tae Il NOH ; Seok Ho KANG ; Seung-Hwan JEONG ; Ja Hyeon KU ; Jong Jin OH ; Ji Eun HEO ; Won Sik HAM ; Joongwon CHOI ; Bumjin LIM ; Bumsik HONG ; Wan SONG ; Minyong KANG ; Hwang Gyun JEON ; Seong Il SEO ; Seong Soo JEON ; Hyun Hwan SUNG ; Byong Chang JEONG ;
Journal of Urologic Oncology 2025;23(1):79-87
Purpose:
To evaluate whether extended pelvic lymph node dissection (PLND) improves survival outcomes compared with standard PLND in patients with bladder cancer (BCa) undergoing radical cystectomy (RC), and to assess its potential benefits in patients with prior or concurrent radical nephroureterectomy (p/cRNU).
Materials and Methods:
A multicenter analysis included 2202 patients with BCa undergoing RC with standard or extended PLND at 11 tertiary centers from 2003 to 2023. Following propensity score matching, 659 pairs (n=1,318), including 128 patients with p/cRNU, were analyzed. Recurrence-free survival (RFS) was the primary outcome, while overall survival (OS), cancer-specific survival (CSS), and readmission rates were secondary outcomes. Survival analyses performed using Kaplan-Meier methods and clustered Cox models.
Results:
Extended PLND yielded significantly more lymph nodes than standard PLND (median: 27.0 vs. 17.0, p<0.001) but did not improve RFS, CSS, or OS in the overall cohort (all p>0.05). Extended PLND increased readmission rates (28.4% vs. 20.2%, p=0.001) and readmission risk (odds ratio, 1.57; 95% confidence interval [CI], 1.15–2.16, p=0.005). However, subgroup analysis revealed extended PLND significantly improved RFS in patients with p/cRNU (hazard ratio, 0.54; 95% CI, 0.38–0.77; p<0.001).
Conclusion
Extended PLND does not provide survival benefits for overall patient population and increases readmission risk but significantly improves RFS in patients with p/cRNU. Tailoring PLND extent based on upper tract disease status is recommended.
10.Effect of Residual Stone Fragments on Patient-Reported Quality of Life after Endoscopic Kidney Stone Surgery
Sang Hee LEE ; Jun-Koo KANG ; Jae-Wook CHUNG ; Yun-Sok HA ; Jun Nyung LEE ; Seock Hwan CHOI ; Hyun Tae KIM ; Tae-Hwan KIM ; Eun Sang YOO ; Tae Gyun KWON ; Bum Soo KIM
Urogenital Tract Infection 2024;19(2):31-39
Purpose:
This study examined the effects of residual fragments (RF) on the patient-reported quality of life (QOL) after kidney stone surgery, such as retrograde intrarenal surgery (RIRS) and percutaneous nephrolithotomy (PCNL), using the Korean version of the Wisconsin Stone Quality of Life Questionnaire (K-WISQOL).
Materials and Methods:
The medical records of 156 patients who underwent RIRS or PCNL and completed the preoperative and postoperative K-WISQOL from January 2021 to September 2023 were analyzed retrospectively. The patients were divided into RIRS and PCNL groups by the surgical method. The participants completed the K-WISQOL within four weeks before and after treatment. The patients’ baseline characteristics, surgical outcomes, and K-WISQOL scores were compared according to the presence of RF in each surgical group.
Results:
Of the 156 patients, 95 underwent RIRS, and 61 underwent PCNL. In the RIRS group, the patients’ baseline characteristics and surgical outcomes were similar in the stone-free (SF) and RF subgroups. The changes in all K-WISQOL domain scores and total scores were similar in the two subgroups. In the PCNL group, the RF subgroup had a significantly higher proportion of staghorn stones, a significantly larger mean stone diameter and significantly longer operation time than those of the SF subgroup. But, the changes in all K-WISQOL domain scores and total scores were not significantly different between the two subgroups, as observed in the RIRS group.
Conclusions
This study showed that the presence of RFs after endoscopic kidney surgery did not affect the short-term patient-reported QOL regardless of the surgical methods.

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