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Lee H, Hwang EC, Oh CK, Lee S, Yu HS, Lim JS, Kim HW, Walsh T, Kim MH, Jung JH, Dahm P. Testosterone replacement in men with sexual dysfunction. Cochrane Database Syst Rev 2024; 1:CD013071. [PMID: 38224135 PMCID: PMC10788910 DOI: 10.1002/14651858.cd013071.pub2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
BACKGROUND Clinical practice guidelines recommend testosterone replacement therapy (TRT) for men with sexual dysfunction and testosterone deficiency. However, TRT is commonly promoted in men without testosterone deficiency and existing trials often do not clearly report participants' testosterone levels or testosterone-related symptoms. This review assesses the potential benefits and harms of TRT in men presenting with complaints of sexual dysfunction. OBJECTIVES To assess the effects of testosterone replacement therapy compared to placebo or other medical treatments in men with sexual dysfunction. SEARCH METHODS We performed a comprehensive search of CENTRAL (the Cochrane Library), MEDLINE, EMBASE, and the trials registries ClinicalTrials.gov and World Health Organization International Clinical Trials Registry Platform, with no restrictions on language of publication or publication status, up to 29 August 2023. SELECTION CRITERIA We included randomized controlled trials (RCTs) in men (40 years or over) with sexual dysfunction. We excluded men with primary or secondary hypogonadism. We compared testosterone or testosterone with phosphodiesterase-5 inhibitors (PDEI5I) to placebo or PDE5I alone. DATA COLLECTION AND ANALYSIS Two review authors independently screened the literature, assessed the risk of bias, extracted data, and rated the certainty of evidence (CoE) according to GRADE using a minimally contextualized approach. We performed statistical analyses using a random-effects model and interpreted them according to standard Cochrane methodology. Predefined primary outcomes were self-reported erectile dysfunction assessed by a validated instrument, sexual quality of life assessed by a validated instrument, and cardiovascular mortality. Secondary outcomes were treatment withdrawal due to adverse events, prostate-related events, and lower urinary tract symptoms (LUTS). We distinguished between short-term (up to 12 months) and long-term (> 12 months) outcomes. MAIN RESULTS We identified 43 studies with 11,419 randomized participants across three comparisons: testosterone versus placebo, testosterone versus PDE5I, and testosterone with PDE5I versus PDE5I alone. This abstract focuses on the most relevant comparison of testosterone versus placebo. Testosterone versus placebo (up to 12 months) Based on a predefined sensitivity analysis of studies at low risk of bias, and an analysis combing data from the similar International Index of Erectile Function (IIEF-EF) and IIEF-5 instruments, TRT likely results in little to no difference in erectile function assessed with the IIEF-EF (mean difference (MD) 2.37, 95% confidence interval (CI) 1.67 to 3.08; I² = 0%; 6 RCTs, 2016 participants; moderate CoE) on a scale from 6 to 30 with larger values reflecting better erectile function. We assumed a minimal clinically important difference (MCID) of greater than or equal to 4. TRT likely results in little to no change in sexual quality of life assessed with the Aging Males' Symptoms scale (MD -2.31, 95% CI -3.63 to -1.00; I² = 0%; 5 RCTs, 1030 participants; moderate CoE) on a scale from 17 to 85 with larger values reflecting worse sexual quality of life. We assumed a MCID of greater than or equal to 10. TRT also likely results in little to no difference in cardiovascular mortality (risk ratio (RR) 0.83, 95% CI 0.21 to 3.26; I² = 0%; 10 RCTs, 3525 participants; moderate CoE). Based on two cardiovascular deaths in the placebo group and an assumed MCID of 3%, this would correspond to no additional deaths per 1000 men (95% CI 1 fewer to 4 more). TRT also likely results in little to no difference in treatment withdrawal due to adverse events, prostate-related events, or LUTS. Testosterone versus placebo (later than 12 months) We are very uncertain about the longer-term effects of TRT on erectile dysfunction assessed with the IIEF-EF (MD 4.20, 95% CI -2.03 to 10.43; 1 study, 42 participants; very low CoE). We did not find studies reporting on sexual quality of life or cardiovascular mortality. We are very uncertain about the effect of testosterone on treatment withdrawal due to adverse events. We found no studies reporting on prostate-related events or LUTS. AUTHORS' CONCLUSIONS In the short term, TRT probably has little to no effect on erectile function, sexual quality of life, or cardiovascular mortality compared to a placebo. It likely results in little to no difference in treatment withdrawals due to adverse events, prostate-related events, or LUTS. In the long term, we are very uncertain about the effects of TRT on erectile function when compared to placebo; we did not find data on its effects on sexual quality of life or cardiovascular mortality. The certainty of evidence ranged from moderate (signaling that we are confident that the reported effect size is likely to be close to the true effect) to very low (indicating that the true effect is likely to be substantially different). The findings of this review should help to inform future guidelines and clinical decision-making at the point of care.
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Affiliation(s)
- Hunju Lee
- Department of Preventive Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea, South
| | - Eu Chang Hwang
- Department of Urology, Chonnam National University Medical School, Chonnam National University Hwasun Hospital, Hwasun, Korea, South
- Center of Evidence-Based Medicine, Institute of Convergence Science, Yonsei University, Seoul, Korea, South
| | - Cheol Kyu Oh
- Department of Urology, Heaundae Paik Hospital, Inje University, Busan, Korea, South
| | - Solam Lee
- Department of Dermatology, Yonsei University Wonju College of Medicine, Wonju, Korea, South
| | - Ho Song Yu
- Department of Urology, Chonnam National University, Gwangju, Korea, South
| | - Jung Soo Lim
- Division of Endocrinology, Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea, South
| | - Hong Wook Kim
- Department of Urology, Konyang University College of Medicine, Daejeon, Korea, South
| | - Thomas Walsh
- Immunocompromised Host Section, Pediatric Oncology Branch, National Cancer Institute, Bethesda, MD, USA
| | - Myung Ha Kim
- Yonsei Wonju Medical Library, Yonsei University Wonju College of Medicine, Wonju, Korea, South
| | - Jae Hung Jung
- Center of Evidence-Based Medicine, Institute of Convergence Science, Yonsei University, Seoul, Korea, South
- Department of Urology, Yonsei University Wonju College of Medicine, Wonju, Korea, South
- Department of Precision Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea, South
| | - Philipp Dahm
- Department of Urology, University of Minnesota, Minneapolis, Minnesota, USA
- Urology Section, Minneapolis VA Health Care System, Minneapolis, Minnesota, USA
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Zhou F, Chen AX, Lv HY, Liang DH, Yu HS. Establishment of an immune-related gene prognostic model for head and neck tumors. J BIOL REG HOMEOS AG 2021; 35:975-986. [PMID: 34159769 DOI: 10.23812/21-14-a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
This study aimed to screen the key immune-related genes (IRGs) in head and neck squamous cell carcinoma (HNSC) and construct the IRGs-related prognostic model to predict the overall survival (OS) of patients with HNSC. The RNA-seq data and clinical data were downloaded from The Cancer Genome Atlas database, and IRGs were obtained from the Immunology Database and Analysis Portal. Differentially expressed genes (DEGs) between HNSC and normal samples were identified, followed by integration with IRGs to screen differentially expressed IRGs. After univariate and multivariate proportional hazard regression analyses, an IRG-based risk model was constructed. Meanwhile, data chip of GSE65858 as the validation set to assess the predicted performance of established model. Next, univariate and multivariate Cox regression analyses were performed to identify the independent prognostic factor of HNSC, and the Nomogram model was developed to predict patient outcome. Furthermore, the correlation between immune cell infiltration and risk score was analyzed. A total of 65 differently expressed IRGs associated with prognosis of HNSC were screened, and finally a 26-gene IRG signature was identified to construct a prognostic prediction model. The AUC of ROC curve was 0.750. Survival analysis showed that patients in the high-risk group had a worse prognosis. Independent prognostic analysis showed that risk score could be considered as an independent predictor for HNSC prognosis. Nomogram assessment showed that the model had high reliability for predicting the survival of patients with HNSC in 1, 2, 3 years. Ultimately, the abundance of B cells and CD4+ T cell infiltration in HNSC showed negative correlations with risk score. Our IRG-based prognostic risk model may be used to estimate the prognosis of HNSC patients.
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Affiliation(s)
- F Zhou
- Department of Radiation Oncology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - A X Chen
- Department of Radiation Oncology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - H Y Lv
- Department of Radiation Oncology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - D H Liang
- Department of Radiation Oncology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - H S Yu
- Department of Radiation Oncology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
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Ha YS, Kim SY, Chung JI, Choi H, Kim JH, Yu HS, Cho IC, Kim HJ, Chung HC, Koh JS, Lee JY, Park DJ, Kim HT, Yoo ES, Kwon TG, Min K, Kim WJ, Yun SJ, Park JH. Trends in End-of-Life Resource Utilization and Costs among Prostate Cancer Patients from 2006 to 2015: A Nationwide Population-Based Study. World J Mens Health 2020; 39:158-167. [PMID: 33350174 PMCID: PMC7752516 DOI: 10.5534/wjmh.200113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/15/2020] [Accepted: 10/08/2020] [Indexed: 12/12/2022] Open
Abstract
Purpose The purpose of this study was to evaluate end-of-life resource utilization and costs for prostate cancer patients during the last year of life in Korea. Materials and Methods The study used the National Health Information Database (NHIS-2017-4-031) of the Korean National Health Insurance Service. Healthcare claim data for the years 2002 through 2015 were collected from the Korean National Health Insurance System. Among 83,173 prostate cancer patients, we enrolled 18,419 after excluding 1,082 who never claimed for the last year of life. Results From 2006 to 2015, there was a 3.2-fold increase the total number of prostate cancer decedents. The average cost of care during the last year of life increased over the 10-year period, from 14,420,000 Korean won to 20,300,000 Korean won, regardless of survival time. The cost of major treatments and medications, other than analgesics, was relatively high. Radiologic tests, opioids, pain control, and rehabilitation costs were relatively low. Multiple regression analysis identified age and living in rural area as negatively associated with prostate cancer care costs, whereas income level and a higher number of comorbidities were positively associated. Conclusions Expenditure of prostate cancer care during the last year of life varied according to patient characteristics. Average costs increased every year. However, the results suggest underutilization of support services, likely due to lack of alternative accommodation for terminal prostate cancer patients. Further examination of patterns of utilization of healthcare resources will allow policymakers to take a better approach to reducing the burden of prostate cancer care.
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Affiliation(s)
- Yun Sok Ha
- Department of Urology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - So Young Kim
- Department of Public Health and Preventive Medicine, Chungbuk National University Hospital, Cheongju, Korea
| | - Jae Il Chung
- Department of Urology, Inje University Busan Paik Hospital, Busan, Korea
| | - Hoon Choi
- Department of Urology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Jae Heon Kim
- Department of Urology, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - In Chang Cho
- Department of Urology, National Police Hospital, Seoul, Korea
| | - Hyung Joon Kim
- Department of Urology, Konyang University College of Medicine, Daejeon, Korea
| | - Hyun Chul Chung
- Department of Urology, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Jun Sung Koh
- Department of Urology, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ji Youl Lee
- Department of Urology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Dong Jin Park
- Department of Urology, Dongguk University School of Medicine, Gyeongju, Korea
| | - Hyun Tae Kim
- Department of Urology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Eun Sang Yoo
- Department of Urology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Tae Gyun Kwon
- Department of Urology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Kyungchan Min
- Department of Urology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Wun Jae Kim
- Department of Urology, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju, Korea.,Institute of Urotech, Cheongju, Korea
| | - Seok Joong Yun
- Department of Urology, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju, Korea.
| | - Jong Hyock Park
- Department of Preventive Medicine, Graduate School of Health Science Business Convergence, Chungbuk National University College of Medicine, Cheongju, Korea.
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Oh KJ, Yu HS, Park J, Lee HS, Park SA, Park K. Co-culture of smooth muscle cells and endothelial cells on three-dimensional bioprinted polycaprolactone scaffolds for cavernosal tissue engineering. Aging Male 2020; 23:830-835. [PMID: 30964369 DOI: 10.1080/13685538.2019.1601175] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
PURPOSE In vitro evaluation of polycaprolactone (PCL) scaffolds fabricated by a three-dimensional (3D) printing technique for tissue engineering applications in the corpus cavernosum. MATERIALS AND METHODS PCL scaffolds were fabricated by use of a 3 D bioprinting system. The 3D-printed scaffolds had interconnected structures for cell ingrowth. Human aortic smooth muscle cells (haSMCs) were seeded on the scaffold and cultured for 5 days, and then human umbilical vein endothelial cells (HUVECs) were also added on the scaffolds and co-cultured with haSMCs for up to 7 days. The ability of these scaffolds to support the growth of HUVECs and haSMCs was investigated in vitro. 3 D strand-deposited scaffolds were characterized by scanning electron microscopy (SEM) images and porosity measurement. RESULTS SEM images showed the surface of the PCL scaffolds to be well covered by HUVECs and haSMCs. Immunofluorescent staining of α-flk1 and α-smooth muscle actin on the HUVECs and haSMCs seeded scaffolds confirmed that the cells remained viable and proliferated throughout the time course of the culture. CONCLUSION 3 D bioprinting of a PCL scaffold is feasible for co-culturing of HUVECs and haSMCs. This was a preliminary study to investigate the possibility of fabrication of tissue-engineered corpus cavernosum.
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Affiliation(s)
- Kyung-Jin Oh
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
- Sexual Medicine Research Center, Chonnam National University, Gwangju, Korea
| | - Jinju Park
- Sexual Medicine Research Center, Chonnam National University, Gwangju, Korea
| | - Hyun-Suk Lee
- Sexual Medicine Research Center, Chonnam National University, Gwangju, Korea
| | - Su A Park
- Nano Convergence & Manufacturing Systems Research Division, Korea Institute of Machinery & Materials (KIMM) 104 Sinseongno, Yuseong-gu, Korea
| | - Kwangsung Park
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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5
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Liang YG, Lee S, Yu HS, Zhang HR, Liang YJ, Zavalij PY, Chen X, James RD, Bendersky LA, Davydov AV, Zhang XH, Takeuchi I. Tuning the hysteresis of a metal-insulator transition via lattice compatibility. Nat Commun 2020; 11:3539. [PMID: 32669544 PMCID: PMC7363867 DOI: 10.1038/s41467-020-17351-w] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 06/17/2020] [Indexed: 11/28/2022] Open
Abstract
Structural phase transitions serve as the basis for many functional applications including shape memory alloys (SMAs), switches based on metal-insulator transitions (MITs), etc. In such materials, lattice incompatibility between transformed and parent phases often results in a thermal hysteresis, which is intimately tied to degradation of reversibility of the transformation. The non-linear theory of martensite suggests that the hysteresis of a martensitic phase transformation is solely determined by the lattice constants, and the conditions proposed for geometrical compatibility have been successfully applied to minimizing the hysteresis in SMAs. Here, we apply the non-linear theory to a correlated oxide system (V1−xWxO2), and show that the hysteresis of the MIT in the system can be directly tuned by adjusting the lattice constants of the phases. The results underscore the profound influence structural compatibility has on intrinsic electronic properties, and indicate that the theory provides a universal guidance for optimizing phase transforming materials. The effect of the lattice degrees of freedom on the metal-insulator transition of VO2 remains a topic of debate. Here the authors show that the lattice compatibility of the high temperature tetragonal phase and the low-temperature monoclinic phase strongly influences the electronic transition, as manifested in the tunability of its hysteresis via chemical substitution.
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Affiliation(s)
- Y G Liang
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - S Lee
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA.,Department of Physics, Pukyong National University, Busan, 48513, South Korea
| | - H S Yu
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - H R Zhang
- Theiss Research, Inc, La Jolla, CA, 92037, USA.,Material Science and Engineering Division, Materials Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA
| | - Y J Liang
- Chemical and Biomolecular Engineering, University of Maryland, College Park, MD, 20742, USA
| | - P Y Zavalij
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD, 20742, USA
| | - X Chen
- Department of Mechanical and Aerospace Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong
| | - R D James
- Department of Aerospace Engineering and Mechanics, University of Minnesota, Minneapolis, MN, 55455, USA
| | - L A Bendersky
- Theiss Research, Inc, La Jolla, CA, 92037, USA.,Material Science and Engineering Division, Materials Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA
| | - A V Davydov
- Material Science and Engineering Division, Materials Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA
| | - X H Zhang
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA.
| | - I Takeuchi
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA. .,Maryland Quantum Materials Center, University of Maryland, College Park, MD, 20742, USA.
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Oh JY, Chung HS, Yu SH, Kim MS, Yu HS, Hwang EC, Oh KJ, Kim SO, Jung SI, Kang TW, Park K, Kwon D. Comparison of surgical outcomes between lateral and posterior approaches for retroperitoneal laparoscopic adrenalectomy: A single surgeon's experience. Investig Clin Urol 2020; 61:180-187. [PMID: 32158969 PMCID: PMC7052412 DOI: 10.4111/icu.2020.61.2.180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 09/25/2019] [Indexed: 01/02/2023] Open
Abstract
Purpose To compare surgical outcomes between the lateral and the posterior approach for retroperitoneal laparoscopic adrenalectomy (RLA). Materials and Methods We retrospectively reviewed the records of 130 patients who underwent RLA for adrenal tumors by a single surgeon between January 2015 and December 2018. Patient characteristics and perioperative outcomes were analyzed and compared between two surgical groups: lateral approach (n=56) and posterior approach (n=74). Results There were no significant differences in perioperative outcomes between the two groups except for operative time (lateral approach, 105.4±41.21 minutes vs. posterior approach, 71.5±31.51 minutes; p=0.001). In the lateral approach group, two patients (3.6%) underwent open conversion, but there were no major complications in either group (Clavien-Dindo classification ≥3). Male sex was associated with an operative time of ≥90 minutes in the univariate analysis (p=0.019), but this effect did not remain significant in the multivariate analysis. In the multivariate analysis, large tumor size (>5 cm; p=0.020) and preoperative diagnosis of malignancy (p=0.043) were significantly associated with an operative time of ≥90 minutes. Conclusions Both the lateral and posterior approaches for RLA were performed safely with similar operative outcomes and are therefore comparable options for the treatment of adrenal tumors. In addition, large tumor size and preoperative diagnosis of malignancy are associated with longer operative times.
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Affiliation(s)
- Ju Yong Oh
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Seok Chung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Seong Hyeon Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Myung Soo Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Eu Chang Hwang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Kyung Jin Oh
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Seung Il Jung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Taek Won Kang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Kwangsung Park
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Dongdeuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Kang HW, Yun SJ, Chung JI, Choi H, Kim JH, Yu HS, Ha YS, Cho IC, Kim HJ, Chung HC, Koh JS, Kim WJ, Park JH, Lee JY, Kim SY. National practice patterns and direct medical costs for prostate cancer in Korea across a 10 year period: a nationwide population-based study using a national health insurance database. BMC Health Serv Res 2019; 19:408. [PMID: 31234845 PMCID: PMC6591932 DOI: 10.1186/s12913-019-4218-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Accepted: 06/05/2019] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND A complete enumeration study was conducted to evaluate trends in national practice patterns and direct medical costs for prostate cancer (PCa) in Korea over a 10-year retrospective period using data from the Korean National Health Insurance Service. METHODS Reimbursement records for 874,924 patients diagnosed between 2002 and 2014 with primary PCa according to the International Classification of Disease (ICD) 10th revision code C61 were accessed. To assess direct medical costs for patients newly diagnosed after 2005, data from 68,596 patients managed between January 2005 and 31 December 2014 were evaluated. RESULTS From 2005 to 2014, the total number of PCa patients showed a 2.6-fold increase. Surgery and androgen deprivation therapy were the most common first-line treatment, alone or within the context of combined therapy. Surgery as a monotherapy was performed in 23.5% of patients in 2005, and in 39.4% of patients in 2014. From 2008, the rate of robot-assisted RP rose sharply, showing a similar rate to open RP in 2014. Average total treatment costs in the 12 months post-diagnosis were around 10 million Korean won. Average annual treatment costs thereafter were around 5 million Korean won. Out-of-pocket expenditure was highest in the first year post-diagnosis, and ranged from 12 to 17% thereafter. CONCLUSIONS Between 2005 and 2014, a substantial change was observed in the national practice pattern for PCa in Korea. The present data provide a reliable overview of treatment patterns and medical costs for PCa in Korea.
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Affiliation(s)
- Ho Won Kang
- Department of Urology, Chungbuk National University Hospital, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Seok-Joong Yun
- Department of Urology, Chungbuk National University Hospital, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Jae Il Chung
- Department of Urology, Inje University Busan Paik Hospital, Busan, Korea
| | - Hoon Choi
- Department of Urology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Jae Heon Kim
- Department of Urology, Soonchunhyang University Hospital, Seoul, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Yun-Sok Ha
- Department of Urology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - In-Chang Cho
- Department of Urology, National Police Hospital, Seoul, Korea
| | - Hyung Joon Kim
- Department of Urology, Konyang University College of Medicine, Daejeon, Korea
| | - Hyun Chul Chung
- Department of Urology, Wonju College of Medicine, Yonsei University, Wonju, Korea
| | - Jun Sung Koh
- Department of Urology, Seoul St. Mary's Hospital, The Catholic University of Korea School of Medicine, 222 Banpo-daero, Seocho-gu, Seoul, 06591, Korea
| | - Wun-Jae Kim
- Department of Urology, Chungbuk National University Hospital, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Jong-Hyock Park
- Department of Preventive Medicine/ Graduate School of Health Science Business Convergence, Chungbuk National University, Cheongju, Korea
| | - Ji Youl Lee
- Department of Urology, Seoul St. Mary's Hospital, The Catholic University of Korea School of Medicine, 222 Banpo-daero, Seocho-gu, Seoul, 06591, Korea.
| | - So-Young Kim
- Department of Public Health and Preventive Medicine, Chungbuk National University Hospital, 776 1sunhwan-ro, Seowon-gu, Cheonju, 28644, Korea.
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Abstract
RATIONALE Persistent Müllerian duct syndrome (PMDS) is rare form of male pseudohermaphroditism characterized by the presence of uterus and fallopian tubes with normal external genitalia and secondary sexual characteristics. Transverse testicular ectopia (TTE) is also a rare form of testicular ectopia that may be associated with PMDS. PATIENT CONCERNS We present a 2-year-old boy who presented with bilateral non-palpable testes with left inguinal mass. DIAGNOSIS TTE with PMDS. INTERVENTIONS On exploration, both testes were present in the left inguinal region. Uterus and fallopian tubes were located between the testes. A hysterectomy was perfomed with resection of the underdeveloped fallopian tubes. Bilateral orchiopexy was performed by placing both gonads into subdartos pouches in each scrotum with transseptal approach. OUTCOMES Both testes were palpable in both the scrotum at 1-year postoperative follow-up and we are planning a regular follow-up. LESSONS In case of TTE with PMDS, optimal surgical approach with orchiopexy and excision of Müllerian duct should be needed. A long-term postoperative follow-up is necessary for assessment of malignant transformation and infertility.
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Affiliation(s)
| | | | | | - Sung-Sun Kim
- Pathology, Chonnam National University Medical School, Gwangju, Korea
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Oh JH, Chung HS, Yu HS, Kang TW, Kwon D, Kim SO. Hydrocelectomy via scrotal incision is a valuable alternative to the traditional inguinal approach for hydrocele treatment in boys. Investig Clin Urol 2018; 59:416-421. [PMID: 30402575 PMCID: PMC6215779 DOI: 10.4111/icu.2018.59.6.416] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 10/01/2018] [Indexed: 11/30/2022] Open
Abstract
Purpose Few studies have explored the treatment of isolated communicating hydroceles via scrotal incision. We prospectively evaluated the surgical outcomes of such treatment in boys with hydroceles compared with that using traditional, inguinal incision hydrocelectomy. Materials and Methods Of 347 boys aged 0–12 years who were diagnosed as hydrocele on ultrasonography, 173 boys were assigned to the scrotal incision hydrocelectomy group (group I, n=173) and 172 boys were assigned to the traditional inguinal incision hydrocelectomy group (group II, n=172), and finally 156 boys in group I and 156 boys in group II were included in this study. Surgical outcomes, including postoperative complications and hydrocele relapse rates, were compared between groups. Results The overall success rates were similar in both groups (group I, 96.8%; group II, 89.1%; p=0.740). The operation time and hospital stay were significantly shorter in group I (30.94±3.95 minutes and 3.94±0.30 days) than in group II (38.02±7.12 minutes and 4.24±0.99 days; p<0.001 and p=0.009, respectively). The postoperative complication rate was lower in group I than in group II (3.2% vs. 10.9%, p=0.740). Conclusions Scrotal incision hydrocelectomy in boys was associated with shorter operative time and hospital stay, and a lower postoperative complication rate, than was the inguinal incision approach. The scrotal incision technique might be an easy and effective alternative treatment when used to treat hydroceles in boys as well as inguinal incision approach.
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Affiliation(s)
- Jeong Hoon Oh
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Seok Chung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Taek Won Kang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Dongdeuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Ding YP, Yu HS, Wang JL, Shao BP. Immunoexpression of aquaporins 1, 2, 3 and 4 in kidney of yak (Bos grunniens) on the Qinghai-Tibetan Plateau. Biotech Histochem 2018; 94:48-52. [PMID: 30328721 DOI: 10.1080/10520295.2018.1495843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Aquaporins (AQP) 1, 2, 3 and 4 belong to the aquaporin water channel family and play an important role in urine concentration by reabsorption of water from renal tubule fluid. Renal AQPs have not been reported in the yak (Bos grunniens), which resides in the Qinghai Tibetan Plateau. We investigated AQPs 1-4 expressions in the kidneys of Yak using immunohistochemical staining. AQP1 was expressed mainly in the basolateral and apical membranes of the proximal tubules and descending thin limb of the loop of Henle. AQP2 was detected in the apical plasma membranes of collecting ducts and distal convoluted tubules. AQP3 was located in the proximal tubule, distal tubule and collecting ducts. AQP4 was located in the collecting ducts, distal straight tubule, glomerular capillaries and peritubular capillaries. The expression pattern of AQPs 1-4 in kidney of yak was different from other species, which possibly is related to kidney function in a high altitude environment.
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Affiliation(s)
- Y P Ding
- a School of life Science , Northwest Normal University , Lanzhou , P. R.China
| | - H S Yu
- b School of Life Science , Lanzhou University , Lanzhou , P. R. China
| | - J L Wang
- b School of Life Science , Lanzhou University , Lanzhou , P. R. China
| | - B P Shao
- b School of Life Science , Lanzhou University , Lanzhou , P. R. China
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11
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Jung JH, Kim HW, Narayan V, Reddy B, Walsh T, Yu HS, Lim JS, Kim MH, Dahm P. Testosterone supplementation in men with sexual dysfunction. Hippokratia 2018. [DOI: 10.1002/14651858.cd013071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jae Hung Jung
- Yonsei University Wonju College of Medicine; Department of Urology; 20 Ilsan-ro Wonju Gangwon Korea, South 26426
| | - Hong Wook Kim
- Konyang University College of Medicine,; Department of Urology; Gasuwon-dong, Seo-gu Daejeon Korea, South 302-718
| | - Vikram Narayan
- University of Minnesota; Department of Urology; Minneapolis Minnesota USA
| | - Balaji Reddy
- Massachusetts General Hospital; Department of Urology; 55 Fruit Street Boston USA MA 02114
| | - Thomas Walsh
- National Cancer Institute; Immunocompromised Host Section, Pediatric Oncology Branch; CRC 1-5750 10 Center Drive Bethesda MD USA 20892
| | - Ho Song Yu
- Chonnam National University; Department of Urology; 42 Jebong-ro, Dong-gu Gwangju Chonnam Korea, South 61469
| | - Jung Soo Lim
- Yonsei University Wonju College of Medicine; Division of Endocrinology, Department of Internal Medicine; 20 Ilsan-ro Wonju Gangwon Korea, South 26426
| | - Myung Ha Kim
- Yonsei University Wonju College of Medicine; Yonsei Wonju Medical Library; Wonju Korea, South
| | - Philipp Dahm
- University of Minnesota; Department of Urology; Minneapolis Minnesota USA
- Minneapolis VA Health Care System; Urology Section; One Veterans Drive Mail Code 112D Minneapolis Minnesota USA 55417
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12
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Yu HS, Guo H, Shen SS, Li XC, Zhang LP, Fan XF. [Prenatal diagnosis of women with an adverse reproductive history using both traditional karyotyping and SNP-array]. Zhonghua Fu Chan Ke Za Zhi 2018; 53:155-159. [PMID: 29609228 DOI: 10.3760/cma.j.issn.0529-567x.2018.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the occurrence of fetal chromosomal abnormalities among pregnant women with an adverse reproductive history using traditional karyotyping and single nucleotide polymorphism microarray (SNP-array) technology. Methods: Totally 94 in 2 163 (4.35%) cases of singleton pregnant women with an adverse reproductive history were performed amniocentesis in Jinhua Maternal and Child Health Care Hospital from June 2015 to June 2017. Traditional karyotyping and SNP-array were employed simultaneously for prenatal diagnosis, and the detection rates of the two methods were compared. Results: All of the 94 specimens were successfully analyzed, 11 cases were found with chromosomal anomaly, the overall detection rate was 11.7%(11/94). Seven (7.4%,7/94) abnormalities cases were detected by karyotyping, and 7(7.4%) by SNP-array. The karyotyping results of trisomy 21, and 45,X and the deletion of chromosome 13 were consistent with SNP-array. Only 3 (3.2%, 3/94) microdeletion/duplications (the sizes of duplications and deletions were between 422.4-1 708.4 kb) and 1 (1/4) loss of heterozygosity were detected by SNP-array, but were missed by karyotyping. Furthermore, 2 cases' copy number variation were found pathogenic gene related, while the other 2 were considered benign or variant of uncertain significance. Four cases (4/7) of abnormalities were detected by karyotyping, while confirmed balanced translocation and inversion by SNP-array. All patients were informed and chosen to continue the pregnancy. Conclusions: The rate of abnormal fetal chromosomes in pregnant women with an adverse reproductive history is still high. SNP-array is a new molecular genetic technique, and combined with use of traditional karyotyping, it could improve the detection rate of fetal chromosomal abnormalities and reduce abortion rate, thus providing a basis for genetic counseling and prenatal diagnosis.
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Affiliation(s)
- H S Yu
- Prenatal Diagnosis Center, Jinhua Maternal and Child Health Care Hospital, Jinhua 321000, China
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13
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Chung HS, Kim MS, Yu HS, Hwang EC, Kim SO, Oh KJ, Jung SI, Kang TW, Park K, Kwon DD. Laparoscopic adrenalectomy using the lateral retroperitoneal approach: Is it a safe and feasible treatment option for pheochromocytomas larger than 6 cm? Int J Urol 2018; 25:414-419. [PMID: 29478297 DOI: 10.1111/iju.13524] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 12/07/2017] [Indexed: 12/27/2022]
Abstract
OBJECTIVES To evaluate the surgical feasibility of laparoscopic adrenalectomy using the lateral retroperitoneal approach for the treatment of large pheochromocytomas, and to identify the preoperative risk factors for intraoperative hypertension. METHODS We retrospectively reviewed 51 patients who underwent laparoscopic adrenalectomy using the lateral retroperitoneal approach for the treatment of pheochromocytomas. Patient characteristics and perioperative outcomes were analyzed and compared between the two study groups based on tumor size: group A (n = 27, ≤6 cm) and group B (n = 24, ˃6 cm). RESULTS There was no significant difference in preoperative characteristics between the two groups except for tumor size (P = 0.001) and urinary metanephrine (P = 0.011). Group B patients required longer operating time (P = 0.008), had a greater estimated blood loss (P = 0.001) and hemoglobin change (P = 0.002). However, no significant differences were observed in perioperative complications and mortality. Multivariate analysis showed that symptomatic pheochromocytomas (P = 0.004) and tumor size (P = 0.007) were significant risk factors for intraoperative hypertension. CONCLUSIONS Laparoscopic adrenalectomy using the lateral retroperitoneal approach for pheochromocytomas can be regarded as a treatment option, even for tumors measuring >6 cm. Symptomatic pheochromocytomas and large tumor size seem to represent risk factors for intraoperative hypertension.
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Affiliation(s)
- Ho Seok Chung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Myung Soo Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Eu Chang Hwang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Kyung Jin Oh
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Seung Il Jung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Taek Won Kang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Kwangsung Park
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Dong Deuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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14
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Kim JH, Kim SY, Yun SJ, Chung JI, Choi H, Yu HS, Ha YS, Cho IC, Kim HJ, Chung HC, Koh JS, Kim WJ, Park JH, Lee JY. Medical Travel among Non-Seoul Residents to Seek Prostate Cancer Treatment in Medical Facilities of Seoul. Cancer Res Treat 2018; 51:53-64. [PMID: 29458236 PMCID: PMC6333968 DOI: 10.4143/crt.2017.468] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 02/19/2018] [Indexed: 12/23/2022] Open
Abstract
PURPOSE This study aims to investigate the trend in medical travel by non-Seoul residents to Seoul for treatment of prostate cancer and also to investigate the possible factors affecting the trend. Materials and Methods This study represents a retrospective cohort study using data from theKoreanNationalHealth Insurance System from 2002 to 2015. Annual trends were produced for proportions of patients who traveled according to the age group, economic status and types of treatment. Multiple logistic analysiswas used to determine factors affecting surgeries at medical facilities in Seoul among the non-Seoul residents. RESULTS A total of 68,543 patients were defined as newly diagnosed prostate cancer cohorts from 2005 to 2014. The proportion of patients who traveled to Seoul for treatment, estimated from cases with prostate cancer-related claims, decreased slightly over 9 years (28.0 at 2005 and 27.0 at 2014, p=0.02). The average proportion of medical travelers seeking radical prostatectomy increased slightly but the increase was not statistically significant (43.1 at 2005 and 45.4 at 2014, p=0.26). Income level and performance ofrobot-assisted radical prostatectomy were significant positive factors for medical travel to medical facilities in Seoul. Combined comorbidity diseases and year undergoing surgery were significant negative factors for medical travel to medical facilities in Seoul. CONCLUSION The general trend of patients travelling from outside Seoul for prostate cancer treatment decreased from 2005 to 2014. However, a large proportion of traveling remained irrespective of direct distance from Seoul.
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Affiliation(s)
- Jae Heon Kim
- Department of Urology, Soonchunhyang University Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
| | - So Young Kim
- Department of Public Health and Preventive Medicine, Chungbuk National University Hospital, Cheongju, Korea
| | - Seok-Joong Yun
- Department of Urology, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Jae Il Chung
- Department of Urology, Inje University Busan Paik Hospital, Busan, Korea
| | - Hoon Choi
- Department of Urology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Yun-Sok Ha
- Department of Urology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - In-Chang Cho
- Department of Urology, National Police Hospital, Seoul, Korea
| | - Hyung Joon Kim
- Department of Urology, Konyang University College of Medicine, Daejeon, Korea
| | - Hyun Chul Chung
- Department of Urology, Yonsei University Wonju College of Medicine, Yonsei University, Wonju, Korea
| | - Jun Sung Koh
- Department of Urology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Wun-Jae Kim
- Department of Urology, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Jong-Hyock Park
- Department of Preventive Medicine/Graduate School of Health Science Business Convergence, Chungbuk National University, Cheongju, Korea
| | - Ji Youl Lee
- Department of Urology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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15
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Chung HS, Hwang EC, Yu HS, Jung SI, Lee SJ, Lim DH, Cho WJ, Choe HS, Lee SJ, Park SW. Prevalence of fluoroquinolone-resistant rectal flora in patients undergoing transrectal ultrasound-guided prostate needle biopsy: A prospective multicenter study. Int J Urol 2017; 25:278-283. [PMID: 29241300 DOI: 10.1111/iju.13511] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Accepted: 11/15/2017] [Indexed: 10/18/2022]
Abstract
OBJECTIVES To estimate the prevalence of fluoroquinolone-resistant rectal flora in patients undergoing transrectal ultrasound-guided prostate needle biopsy and to identify the high-risk groups. METHODS From January 2015 to March 2016, rectal swabs of 557 men who underwent transrectal ultrasound-guided prostate needle biopsy were obtained from five institutions. Clinical variables, including demographics, rectal swab culture results and infectious complications, were evaluated. Univariable and multivariable analyses were used to identify the risk factors for fluoroquinolone resistance of rectal flora and infectious complications. RESULTS The incidence of fluoroquinolone-resistant and extended-spectrum beta-lactamase production was 48.1 and 11.8%, respectively. The most common fluoroquinolone-resistant bacteria was Escherichia coli (81% of total fluoroquinolone-resistant bacteria, 39% of total rectal flora), and 16 (2.9%) patients had infectious complications. Univariable and multivariable analysis of clinical parameters affecting fluoroquinolone resistance showed no factor associated with fluoroquinolone resistance of rectal flora. The clinical parameter related to infectious complications after prostate biopsy was a history of operation within 6 months (relative risk 6.60; 95% confidence interval 1.99-21.8, P = 0.002). CONCLUSIONS These findings suggest that a risk-based approach by history taking cannot predict antibiotic resistance of rectal flora, and physicians should consider targeted antibiotic prophylaxis or extended antibiotic prophylaxis for Korean patients undergoing transrectal ultrasound-guided prostate biopsy because of high antibiotic resistance of rectal flora.
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Affiliation(s)
- Ho Seok Chung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Eu Chang Hwang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Seung Il Jung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Sun Ju Lee
- Department of Urology, Kyung Hee University School of Medicine, Seoul, Korea
| | - Dong Hoon Lim
- Department of Urology, Chosun University School of Medicine, Gwangju, Korea
| | - Won Jin Cho
- Department of Urology, Chosun University School of Medicine, Gwangju, Korea
| | - Hyun Sop Choe
- Department of Urology, The Catholic University of Korea, St. Vincent's Hospital, Suwon, Korea
| | - Seung-Ju Lee
- Department of Urology, The Catholic University of Korea, St. Vincent's Hospital, Suwon, Korea
| | - Sung Woon Park
- Department of Urology, Kwangju Christian Hospital, Gwangju, Korea
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Yu HS, Park J, Lee HS, Park SA, Lee DW, Park K. Feasibility of Polycaprolactone Scaffolds Fabricated by Three-Dimensional Printing for Tissue Engineering of Tunica Albuginea. World J Mens Health 2017; 36:66-72. [PMID: 29076301 PMCID: PMC5756809 DOI: 10.5534/wjmh.17025] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 08/31/2017] [Accepted: 09/05/2017] [Indexed: 01/17/2023] Open
Abstract
PURPOSE To investigate the feasibility of a polycaprolactone (PCL) scaffold fabricated by three-dimensional (3D) printing for tissue engineering applications for tunica albuginea. MATERIALS AND METHODS PCL scaffolds were fabricated by use of a 3D printing system. Two scaffolds were fabricated that differed in the architecture of the lay-down pattern: a 90°PCL scaffold and a 45°PCL scaffold. Mechanical properties were measured to compare tensile strength between the two scaffold types. The scaffolds were characterized by scanning electron microscope (SEM) images. The scaffolds were seeded with fibroblast cells, and the ability of these scaffolds to support the cells was evaluated by immunofluorescence staining. RESULTS The PCL scaffolds had well-structured shapes, regular arrays, and good interconnection in SEM images. The horizontal and vertical Young's modulus coefficients were 13 and 12 MPa for the 90°PCL scaffold and 19 and 21 MPa for the 45°PCL scaffold, respectively. Microscopy images revealed that human fibroblast cells covered the entire scaffold surface. Immunofluorescence staining of ER-TR7 confirmed that the fibroblast cells remained viable and proliferated throughout the time course of the culture. CONCLUSIONS This preliminary study provides experimental evidence for the feasibility of 3D printing of PCL scaffolds for tissue engineering applications of tunica albuginea.
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Affiliation(s)
- Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Chonnam National University Sexual Medicine Research Center, Gwangju, Korea
| | - Jinju Park
- Department of Urology, Chonnam National University Medical School, Chonnam National University Sexual Medicine Research Center, Gwangju, Korea
| | - Hyun Suk Lee
- Department of Urology, Chonnam National University Medical School, Chonnam National University Sexual Medicine Research Center, Gwangju, Korea
| | - Su A Park
- Nano Convergence and Manufacturing Systems Research Division, Korea Institute of Machinery and Materials (KIMM), Daejeon, Korea
| | - Dong Weon Lee
- MEMS and Nanotechnology Laboratory, School of Mechanical Systems Engineering, Chonnam National University, Gwangju, Korea
| | - Kwangsung Park
- Department of Urology, Chonnam National University Medical School, Chonnam National University Sexual Medicine Research Center, Gwangju, Korea.
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Zhu SH, Li Y, Huang W, Jiang H, Li SN, Chen L, Huang S, Yu HS, Xu B. [Feasibility of the 2014 European guidelines risk prediction model for sudden cardiac death in hypertrophic cardiomyopathy in Chinese patients]. Zhonghua Xin Xue Guan Bing Za Zhi 2017; 45:404-408. [PMID: 28511325 DOI: 10.3760/cma.j.issn.0253-3758.2017.05.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: Exploring the feasibility of the 2014 European Society of Cardiology(ESC)guideline's risk prediction model for sudden cardiac death in hypertrophic cardiomyopathy (HCM Risk-SCD) in Chinese patients. Methods: The study population consisted of a consecutive cohort of 172 Chinese patients with HCM without prior sudden cardiac death (SCD) event who were in patients in Nanjing Drum Tower Hospital from December 2010 to October 2015.The endpoint event was a composite of SCD and appropriate implantable cardioverter-defibrillator (ICD) therapy.Clinical data were collected to calculate the 5-year SCD risk using the HCM Risk-SCD formula and to observe the actual risk during the follow-up.Receiver operating characteristic curves (ROC) and the area under curve (AUC) were calculated for the HCM Risk-SCD and risk stratification methods of the 2011 American Heart Association (AHA) guideline. Results: During follow-up of (2.69±1.36) years, five patients achieved the endpoint event.The predicated rate of SCD event using HCM Risk-SCD was (2.36±1.73)%, (1.93±0.78)%, (5.18±0.65)%, (8.77±2.38)% for all patients, low-risk group, medium-risk group and high-risk group respectively.However, the actual rate of SCD event was 2.91%, 1.27%, 25.00% and 14.29%, respectively.The AUC of 2014 ESC guideline and 2011 AHA guidelinewas 0.93(95%CI 0.85-1.00) vs. 0.87(95%CI 0.75-0.98). Conclusion: The predicated rate of SCD event calculated by HCM Risk-SCD is lower than actual rate of SCD, but the prediction efficiency and indication for ICD implantation of HCM Risk-SCD are better than that of 2011 AHA guideline.
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Affiliation(s)
- S H Zhu
- Department of Cardiology, Nanjing Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
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18
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Kim KS, Kim TH, Noh JH, Bae JH, Oh CY, Cho JS, Yu HS, Lee SH, Cho SY, Cho HJ, Cho JM, Choi JD, Han JH, Ha US, Hong SH, Kim YT, Choi HY, Lee SW. PD69-03 COMPARISON OF EFFICAY AND SAFETY FOR ERECTILE DYSFUNCTION OF MIRODENALFIL 50MG ONCE DAILY AND 100MG ON-DEMAND IN PATIENTS WITH RADICAL PROSTATECTOMY : MULTICENTER, RANDOMIZED TRIAL. J Urol 2017. [DOI: 10.1016/j.juro.2017.02.3144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Yu HS, Hwang JE, Chung HS, Cho YH, Kim MS, Hwang EC, Oh KJ, Kim SO, Jung SI, Kang TW, Kwon DD, Park K, Ryu SB, Jung SH, Hur YH, Noh JH, Kim MK, Seo IY, Kim CS, Kang SG, Kang SH, Cheon J. Is preoperative chronic kidney disease status associated with oncologic outcomes in upper urinary tract urothelial carcinoma? A multicenter propensity score-matched analysis. Oncotarget 2017; 8:66540-66549. [PMID: 29029534 PMCID: PMC5630434 DOI: 10.18632/oncotarget.16239] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 03/06/2017] [Indexed: 01/18/2023] Open
Abstract
Purpose The aim of this study was to determine the effect of preoperative chronic kidney disease (CKD) on the prognosis of patients with upper urinary tract urothelial carcinoma (UTUC) who had undergone radical nephroureterectomy (RNU). Results The median follow-up period was 31.1 months (interquartile range: 16.2-55.7 months). Among the study patients, 224 patients in the non-CKD group were selected via propensity score matching. The median recurrence-free, cancer-specific, and overall survival were significantly shorter for patients with preoperative CKD than for non-CKD patients (p = 0.001, p = 0.001, and p = 0.001, respectively). According to multivariable Cox regression analysis, preoperative CKD was related to worse recurrence-free (hazard ratio [HR]: 1.81, 95% confidence interval [CI]: 1.15-2.86, p = 0.011), cancer-specific (HR: 2.44, 95% CI: 1.44-4.14, p = 0.001), and overall survival (HR: 1.66, 95% CI: 1.15-2.40, p = 0.007). Methods A total of 566 patients who underwent RNU at 6 institutions from 2004 to 2014 were retrospectively reviewed. Of these patients, 342 had an estimated glomerular filtration rate (eGFR) ≥ 60 ml/min/1.73 m2 (non-CKD group) and 224 patients had an eGFR <60 ml/min/1.73 m2 (CKD group). To adjust for potential baseline confounders, 224 patients in the non-CKD group were selected by propensity matching. Clinicopathological variables and survival rates were compared between the 2 groups. Conclusions Preoperative CKD appears to be an important independent prognostic factor for oncologic outcomes in patients with UTUC.
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Affiliation(s)
- Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Jun Eul Hwang
- Department of Hemato-Oncology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Seok Chung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Yang Hyun Cho
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Myung Soo Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Eu Chang Hwang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Kyung Jin Oh
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Seung Il Jung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Taek Won Kang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Dong Deuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Kwangsung Park
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Soo Bang Ryu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea.,Chonnam National University Research Institute of Medical Sciences, Gwangju, Korea
| | - Sung-Hoon Jung
- Department of Hemato-Oncology, Chonnam National University Medical School, Gwangju, Korea
| | - Young Hoe Hur
- Department of General Surgery, Chonnam National University Medical School, Gwangju, Korea
| | - Joon Hwa Noh
- Department of Urology, Kwangju Christian Hospital, Gwangju, Korea
| | - Myung Ki Kim
- Department of Urology, Chonbuk National University Medical School, Jeonju, Korea
| | - Ill Young Seo
- Department of Urology, Institute of Wonkwang Medical Science, Wonkwang University School of Medicine, Iksan, Korea
| | - Chul-Sung Kim
- Department of Urology, Chosun University School of Medicine, Gwangju, Korea
| | - Sung Gu Kang
- Department of Urology, Korea University College of Medicine, Seoul, Korea
| | - Seok Ho Kang
- Department of Urology, Korea University College of Medicine, Seoul, Korea
| | - Jun Cheon
- Department of Urology, Korea University College of Medicine, Seoul, Korea
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Choe HS, Lee SJ, Chang IH, Kim TH, Chung H, Chung JM, Lee SD, Jung JH, Kim KH, Min SK, Na YG, Yoon H, Yu HS, Lee MK, Lee SJ. The Antibiotic Susceptibility of Escherichia coli from Community-Acquired Uncomplicated Urinary Tract Infection: A Focused on Fosfomycin. ACTA ACUST UNITED AC 2017. [DOI: 10.14777/uti.2017.12.2.77] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Hyun-Sop Choe
- Department of Urology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
| | - Seung-Ju Lee
- Department of Urology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
| | - In Ho Chang
- Department of Urology, Chung-Ang University School of Medicine, Seoul, Korea
| | - Tae-Hyoung Kim
- Department of Urology, Chung-Ang University School of Medicine, Seoul, Korea
| | - Hong Chung
- Department of Urology, Konkuk University School of Medicine, Chungju, Korea
| | - Jae Min Chung
- Department of Urology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Sang Don Lee
- Department of Urology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Jae Hung Jung
- Department of Urology, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Ki Ho Kim
- Department of Urology, Dongguk University School of Medicine, Gyeongju, Korea
| | - Seung Ki Min
- Department of Urology, National Police Hospital, Seoul, Korea
| | - Yong Gil Na
- Department of Urology, Chungnam National University School of Medicine, Daejeon, Korea
| | - Hana Yoon
- Department of Urology, Ewha Womans University School of Medicine, Seoul, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Mi-Kyung Lee
- Department of Laboratory Medicine, Chung-Ang University College of Medicine, Seoul, Korea
| | - Sun-Ju Lee
- Department of Urology, Kyung Hee University Medical Center, Seoul, Korea
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Kim SW, Ahn JH, Yim SU, Cho YH, Shin BS, Chung HS, Hwang EC, Yu HS, Oh KJ, Kim SO, Jung SI, Kang TW, Kwon DD, Park K. Clinical factors associated with postoperative hydronephrosis after ureteroscopic lithotripsy. Investig Clin Urol 2016; 57:343-50. [PMID: 27617316 PMCID: PMC5017563 DOI: 10.4111/icu.2016.57.5.343] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 07/04/2016] [Indexed: 12/29/2022] Open
Abstract
Purpose This study aimed to determine the predictors of ipsilateral hydronephrosis after ureteroscopic lithotripsy for ureteral calculi. Materials and Methods From January 2010 to December 2014, a total of 204 patients with ureteral calculi who underwent ureteroscopic lithotripsy were reviewed. Patients with lack of clinical data, presence of ureteral rupture, and who underwent simultaneous percutaneous nephrolithotomy (PNL) were excluded. Postoperative hydronephrosis was determined via computed tomographic scan or renal ultrasonography, at 6 months after ureteroscopic lithotripsy. Multivariable analysis was performed to determine clinical factors associated with ipsilateral hydronephrosis. Results A total of 137 patients were enrolled in this study. The mean age of the patients was 58.8±14.2 years and the mean stone size was 10.0±4.6 mm. The stone-free rate was 85.4%. Overall, 44 of the 137 patients (32.1%) had postoperative hydronephrosis. Significant differences between the hydronephrosis and nonhydronephrosis groups were noted in terms of stone location, preoperative hydronephrosis, impacted stone, operation time, and ureteral stent duration (all, p<0.05). On multivariable analysis, increasing preoperative diameter of the hydronephrotic kidney (adjusted odds ratio [OR], 1.21; 95% confidence interval [CI], 1.12–1.31; p=0.001) and impacted stone (adjusted OR, 3.01; 95% CI, 1.15–7.61; p=0.031) independently predicted the occurrence of postoperative hydronpehrosis. Conclusions Large preoperative diameter of the hydronephrotic kidney and presence of impacted stones were associated with hydronephrosis after ureteroscopic stone removal. Therefore, patients with these predictive factors undergo more intensive imaging follow-up in order to prevent renal deterioration due to postoperative hydronephrosis.
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Affiliation(s)
- Sun Woo Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ji Hoon Ahn
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Sang Un Yim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Yang Hyun Cho
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Bo Sung Shin
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Seok Chung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Eu Chang Hwang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Kyung Jin Oh
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Seung Il Jung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Taek Won Kang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Dong Deuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Kwangsung Park
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Yu HS, Ryu JW, Kim SO, Kang TW, Kwon DD, Park K, Oh KJ. Hemostatic completion of percutaneous nephrolithotomy using electrocauterization and a clear amplatz renal sheath. Int Braz J Urol 2016; 42:170-1. [PMID: 27136486 PMCID: PMC4811245 DOI: 10.1590/s1677-5538.ibju.2015.0434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 10/18/2015] [Indexed: 11/29/2022] Open
Abstract
Background and Purpose A tubeless PCNL can reduce postoperative pain, the need for analgesics, hospital stay, and postoperative urinary leakage. However, perioperative or delayed bleeding remains the primary postoperative concern. We demonstrate a simple and cost-effective method to develop a clear nephrostomy tract after completion of a tubeless PCNL. Materials and Methods Four consecutive patients with renal calculi >3cm underwent a tubeless PCNL. We used a 24 Fr nephroscope and a 24 Fr transurethral resectoscope. Intraoperative urologist-directed percutaneous renal access was performed under fluoroscopy. After calculi removal, active bleeders were identified via a clear Amplatz renal sheath. The sheath provided excellent visualization of the nephrostomy tract for the detection of bleeders and surrounding structures. Bleeders were electrocauterized using a roller barrel electrode. During extraction of the renal sheath, the surgeon can confirm hemostasis in the tract and apply intermittent suction. Results Bleeding primarily originated from the torn calyeceal mucosa and the parenchyma. Tract electrocauterization was successful. All patients had mild hematuria, which resolved within two days. The average hemoglobin decrease was 1.65g/dL (0.8-2.1) and no patients required a transfusion. No perioperative complications occurred. On postoperative day 2, the patients could ambulate without a Foley catheter. During three months of follow-up, delayed bleeding or percutaneous urine leakage did not occur. Conclusions Electrocauterization with a roller barrel electrode and a clear Amplatz renal sheath is an effective method to obtain hemostasis after completion of a PCNL. Our technique is cost-effective and readily adapted without the need for additional instruments.
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Affiliation(s)
- Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Ji Won Ryu
- Department of Urology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Taek Won Kang
- Department of Urology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Dong Deuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Kwangsung Park
- Department of Urology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Kyung Jin Oh
- Department of Urology, Chonnam National University Medical School, Gwangju, Republic of Korea
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Yu HS, Na SW, Cho YH, Ryu JG, Shin BS, Nam D, Chung HS, Hwang EC, Kim SO, Jung SI, Kang TW, Kwon D, Park K. MP74-12 DECREASED EXPRESSION OF CAVEOLIN 1 AND 2 IN THE AGING RAT URINARY BLADDER: POTENTIAL MARKER OF BLADDER DYSFUNCTION IN THE ELDERLY POPULATION. J Urol 2016. [DOI: 10.1016/j.juro.2016.02.1709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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24
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Yu HS, Cho YH, Ryu JG, Nam D, Na SW, Shin BS, Chung HS, Hwang EC, Kim SO, Jung SI, Kang TW, Kwon D, Park K. MP55-02 BLADDER WALL THICKNESS IN SONOGRAPHY FOR YOUNG CHILDREN WITH VUR. J Urol 2016. [DOI: 10.1016/j.juro.2016.02.593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kang SG, Hwang EC, Jung SI, Yu HS, Chung HS, Kang TW, Kwon DD, Hwang JE, Kim JS, Noh JH, You JH, Kim MK, Oh TH, Seo IY, Baik S, Kim CS, Kang SH, Cheon J. Poor Preoperative Glycemic Control Is Associated with Dismal Prognosis after Radical Nephroureterectomy for Upper Tract Urothelial Carcinoma: A Korean Multicenter Study. Cancer Res Treat 2016; 48:1293-1301. [PMID: 27034146 PMCID: PMC5080827 DOI: 10.4143/crt.2016.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Accepted: 03/15/2016] [Indexed: 01/25/2023] Open
Abstract
Purpose The purpose of this study is to evaluate the effect of diabetes mellitus (DM) and preoperative glycemic control on prognosis in Korean patients with upper tract urothelial carcinoma (UTUC) who underwent radical nephroureterectomy (RNU). Materials and Methods A total of 566 patients who underwent RNU at six institutions between 2004 and 2014 were reviewed retrospectively. Kaplan-Meier and Cox regression analyses were performed to assess the association between DM, preoperative glycemic control, and recurrence-free, cancer-specific, and overall survival. Results The median follow-up period was 33.8 months (interquartile range, 41.4 months). A total of 135 patients (23.8%) had DM and 67 patients (11.8%) had poor preoperative glycemic control. Patients with poor preoperative glycemic control had significantly shorter median recurrence-free, cancer-specific, and overall survival than patients with good preoperative glycemic control and non-diabetics (all, p=0.001). In multivariable Cox regression analysis, DM with poor preoperative glycemic control showed association with worse recurrence-free survival (hazard ratio [HR], 2.26; 95% confidence interval [CI], 1.31 to 3.90; p=0.003), cancer-specific survival (HR, 2.96; 95% CI, 1.80 to 4.87; p=0.001), and overall survival (HR, 2.13; 95% CI, 1.40 to 3.22; p=0.001). Conclusion Diabetic UTUC patients with poor preoperative glycemic control had significantly worse oncologic outcomes than diabetic UTUC patients with good preoperative glycemic control and non-diabetics. Further investigation is needed to elucidate the exact mechanism underlying the impact of glycemic control on UTUC treatment outcome.
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Affiliation(s)
- Sung Gu Kang
- Department of Urology, Korea University College of Medicine, Seoul, Korea
| | - Eu Chang Hwang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Seung Il Jung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Seok Chung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Taek Won Kang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Dong Deuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Jun Eul Hwang
- Department of Hemato-Oncology, Chonnam National University Medical School, Gwangju, Korea
| | - Jun Seok Kim
- Department of Urology, Kwangju Christian Hospital, Gwangju, Korea
| | - Joon Hwa Noh
- Department of Urology, Kwangju Christian Hospital, Gwangju, Korea
| | - Jae Hyung You
- Department of Urology, Chonbuk National University Medical School, Jeonju, Korea
| | - Myung Ki Kim
- Department of Urology, Chonbuk National University Medical School, Jeonju, Korea
| | - Tae Hoon Oh
- Department of Urology, Institute of Wonkwang Medical Science, Wonkwang University School of Medicine, Iksan, Korea
| | - Ill Young Seo
- Department of Urology, Institute of Wonkwang Medical Science, Wonkwang University School of Medicine, Iksan, Korea
| | - Seung Baik
- Department of Urology, Chosun University School of Medicine, Gwangju, Korea
| | - Chul-Sung Kim
- Department of Urology, Chosun University School of Medicine, Gwangju, Korea
| | - Seok Ho Kang
- Department of Urology, Korea University College of Medicine, Seoul, Korea
| | - Jun Cheon
- Department of Urology, Korea University College of Medicine, Seoul, Korea
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Affiliation(s)
- Insang Hwang
- Department of Urology; Chonnam National University Medical School; Sexual Medicine Research Center; Chonnam National University; Gwangju Korea
| | - Hyun-Suk Lee
- Department of Urology; Chonnam National University Medical School; Sexual Medicine Research Center; Chonnam National University; Gwangju Korea
| | - Ho Song Yu
- Department of Urology; Chonnam National University Medical School; Sexual Medicine Research Center; Chonnam National University; Gwangju Korea
| | - Mi Eun Kim
- Department of Biology; BK21-plus Research Team for Bioactive Control Technology; College of Natural Sciences; Chosun University; Gwangju Korea
| | - Jun Sik Lee
- Department of Biology; BK21-plus Research Team for Bioactive Control Technology; College of Natural Sciences; Chosun University; Gwangju Korea
| | - Kwangsung Park
- Department of Urology; Chonnam National University Medical School; Sexual Medicine Research Center; Chonnam National University; Gwangju Korea
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Kim SO, Yu HS, Kwon D. Efficacy of Desmopressin to Treat Nocturnal Polyuria in Elderly Men: Effects on Sleep Quality. Urol Int 2016; 96:438-42. [PMID: 26836495 DOI: 10.1159/000443968] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 01/11/2016] [Indexed: 11/19/2022]
Abstract
BACKGROUND We investigated the efficacy of desmopressin in elderly patients with nocturnal polyuria (NP) to evaluate its effects on sleep quality. METHODS Patients with NP (defined as the nighttime urine production >33% of total 24-hour urine volume determined from a frequency-volume chart) were recruited. Desmopressin (0.2 mg) was treated orally at bedtime for 12 weeks. The participants completed the Medical Outcomes Study (MOS) Sleep Scale. RESULTS The mean patient age was 62.7 ± 13.0 (range 42-78 years). The mean symptom duration was 42.2 ± 39.7 months. The number of nocturia episodes (from 3.49 ± 1.83 to 2.03 ± 1.35, p = 0.01), nocturnal urine volume (p = 0.01), NP index (p = 0.01), and nocturia index (p = 0.01) decreased significantly after treatment with desmopressin. Among the MOS Sleep Scale categories, hours slept/night (p = 0.042), shortness of breath (p = 0.019), and adequacy of sleep (p = 0.001) changed significantly with a decrease in the number of nocturia episodes. Adverse events were mild. CONCLUSIONS Desmopressin is an effective treatment for NP and improved sleep quality in elderly men.
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Affiliation(s)
- Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Yim SU, Kim SW, Ahn JH, Cho YH, Chung H, Hwang EC, Yu HS, Oh KJ, Kim SO, Jung SI, Kang TW, Kwon DD, Park K. Neutrophil to Lymphocyte and Platelet to Lymphocyte Ratios Are More Effective than the Fournier's Gangrene Severity Index for Predicting Poor Prognosis in Fournier's Gangrene. Surg Infect (Larchmt) 2016; 17:217-23. [PMID: 26835748 DOI: 10.1089/sur.2015.126] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND We investigated the value of the neutrophil to lymphocyte ratio (NLR) and platelet to lymphocyte ratio (PLR) as markers of mortality in patients with Fournier's gangrene. METHODS Records from 62 patients treated for Fournier's gangrene between 2003 and 2014 were reviewed retrospectively. Data were collected regarding medical history, symptoms, physical examination findings, admission laboratory tests, and the extent of body surface area involved (%). Fournier's Gangrene Severity Index score, NLR, and PLR were calculated. The data were assessed separately for surviving and deceased patients. RESULTS Of the 62 patients, 36 survived (58%, group 1) and 26 died (42%, group 2). Parameters that were statistically different between the two groups (p < 0.05) were the NLR, PLR, Fournier's Gangrene Severity Index score, and admission laboratory parameters, including body temperature, heart rate, bicarbonate, albumin, and serum calcium. The average body surface area affected in group 2 was statistically different from that of group 1 (6.0% versus 2.3%, p = 0.001). A high Fournier's Gangrene Severity Index score (>9), high NLR (>8), and high PLR (>140) were associated more frequently with group 2 patients. Multivariable regression analysis showed that high NLR (adjusted odds ratio [OR], 4.66; 95% confidence interval [CI], 1.25-17.3; p = 0.022) and high PLR (adjusted OR, 11.6; 95% CI, 2.7-49.5; p = 0.001) were independent prognostic factors for poor prognosis from Fournier's gangrene. However, the Fournier's Gangrene Severity Index score did not shown any statistically significant effect on mortality (p = 0.086). CONCLUSIONS The Fournier's Gangrene Severity Index scoring system was not associated with determining poor prognosis, however, high NLR and high PLR were associated with predictors of mortality in patients with Fournier's gangrene.
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Affiliation(s)
- Sang Un Yim
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Sun Woo Kim
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Ji Hoon Ahn
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Yang Hyun Cho
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Hoseok Chung
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Eu Chang Hwang
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Kyung Jin Oh
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Seung Il Jung
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Taek Won Kang
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Dong Deuk Kwon
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
| | - Kwangsung Park
- Department of Urology, Chonnam National University Medical School , Gwangju, Korea
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Seo YH, Kim SO, Yu HS, Kwon D. Leak point pressure at different bladder volumes in stress urinary incontinence in women: Comparison between Valsalva and cough-induced leak point pressure. Can Urol Assoc J 2016; 10:E23-7. [PMID: 26858783 DOI: 10.5489/cuaj.3329] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
INTRODUCTION We compared Valsalva leak point pressure (VLPP) in urodynamically proven stress urinary incontinence (SUI) in women at different bladder volumes; examined the relationship between VLPP and cough-induced leak point pressure (CLPP) compared by incontinence severity; and evaluated the influence of bladder volume on each leak point pressure (LPP). METHODS Women with urodynamically proven SUI who underwent serial VLPP and CLPP measurement at bladder volumes of 150, 200, 250, and 300 mL were included in this study (n=228). LPP determination was repeated two times in each subject after finishing one series of LPP measurement. LPP at different bladder volumes was compared by subjective symptom severity of Stamey grade. RESULTS Patients mean age was 51.3±7.6 years (range: 40-65 years). Stamey grade I, II, and III was assigned to 68 (29.8%), 102 (44.7%), and 58 (25.4%) patients, respectively. Mean CLPP was higher than VLPP (p=0.002) at every bladder volume. VLPP and CLPP were significantly decreased by the increase of bladder volume (p=0.001). The mean first positive LPPs were significantly lower at higher Stamey grade (p=0.004). CONCLUSIONS LPP is more frequently induced by cough than by the Valsalva maneuver. VLPP and CLPP decreased significantly with bladder filling and those with severe symptoms of SUI are more likely to have low LPP.
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Affiliation(s)
- Young Ho Seo
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Dongdeuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Yu S, Yu HS, Tu HP, Wu CS, Lan CCE. Association study between melanocortin-1 receptor gene polymorphisms and occurrence of vitiligo in a Taiwanese population: possible explanation for lack of increased UV-related damage in vitiligo skin. J Eur Acad Dermatol Venereol 2015; 30:e204-e205. [PMID: 26670452 DOI: 10.1111/jdv.13528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- S Yu
- Department of Dermatology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Dermatology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - H S Yu
- Department of Dermatology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Dermatology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli County, Taiwan
| | - H P Tu
- Department of Public Health and Environmental Medicine, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - C S Wu
- Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - C C E Lan
- Department of Dermatology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Dermatology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Dermatology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
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Mun JH, Kim SO, Yu HS, Chung HS, Kwon D. Effects of desmopressin for the treatment of nocturnal polyuria in elderly women: impact on related sleep quality. Can Urol Assoc J 2015; 9:E770-4. [PMID: 26600882 DOI: 10.5489/cuaj.3097] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
INTRODUCTION We investigated the efficacy, safety, and impact of desmopressin on quality of sleep in treating nocturnal polyuria in elderly women. METHODS We recruited 60 women over 60 years old with lower urinary tract symptoms (LUTS), including nocturia, and with nocturnal polyuria. Nocturnal polyuria was defined as nighttime urine production exceeding 33% of the 24-hour total urine volume determined by a frequency volume (FV) chart. All patients failed to respond to treatment of their underlying disease and evening fluid restriction. Desmopressin 0.1 mg was administered orally at bedtime for 12 weeks. The participants completed a series of questionnaires on the Medical Outcomes Study (MOS) sleep scale and FV chart before and after treatment. RESULTS The patient population had a mean age of 69.2 ± 9.4 years (range: 61-81). The mean duration of symptoms was 61.2 ± 45.1 months. Significant decreases were evident after desmopressin treatment in the number of nocturia episodes (3.63 ± 1.61 to 2.00 ± 1.13, p = 0.01), nocturnal urine volume (p = 0.01), nocturnal polyuria index (NPI) (p = 0.01), and nocturia index (NI) p = 0.01). Among the categories of the MOS sleep scale, sleep index (p = 0.003), sleep disturbance (p = 0.001), snoring (p = 0.028), and shortness of breath (p = 0.036) significantly changed, with a decreased number of nocturia episodes. Adverse events were mild. CONCLUSIONS Desmopressin is an effective treatment for nocturnal polyuria in elderly women, where conservative treatment has failed. Sleep quality is also improved.
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Affiliation(s)
- Jong-Hyeon Mun
- Department of Neurosurgery, Kwangju Christian Hospital, Gwangju, South Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, South Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, South Korea
| | - Ho Suck Chung
- Department of Urology, Chonnam National University Medical School, Gwangju, South Korea
| | - Dongdeuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, South Korea
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Han JH, Yu HS, Lee JY, Kim J, Kang DH, Kwon JK, Choi YD, Cho KS. Simple Modification of the Bladder Outlet Obstruction Index for Better Prediction of Endoscopically-Proven Prostatic Obstruction: A Preliminary Study. PLoS One 2015; 10:e0141745. [PMID: 26505196 PMCID: PMC4624432 DOI: 10.1371/journal.pone.0141745] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 10/11/2015] [Indexed: 11/18/2022] Open
Abstract
Purpose The bladder outlet obstruction index (BOOI), also known as the Abrams-Griffiths (AG) number, is the most widely used index for predicting BOO. However, the obstructed prostatic urethra determined by the BOOI is often inconsistent with endoscopically-proven obstruction. We assessed abdominal straining pattern as a novel parameter for improving the prediction of BOO. Materials and Methods We retrospectively reviewed the pressure-flow studies (PFS) and cystourethroscopy in 176 BPH/LUTS patients who were unresponsive to medical therapy. During PFS, some groups of patients tried to urinate with abdominal straining, which can increases intravesical pressure and underestimate BOOI theoretically. Accordingly, the modified BOOI was defined as (PdetQmax+ΔPabd)-2Qmax. Results Ultimately, 130 patients were eligible for the analysis. In PFS, ΔPabd (PabdQmax-initial Pabd) was 11.81±13.04 cmH2O, and it was 0–9 cmH2O in 75 (57.7%), 10–19 cmH2O in 23 (17.7%) and ≥20 cmH2O in 32 (24.6%) patients. An endoscopically obstructed prostatic urethra in 92 patients was correctly determined in 47 patients (51.1%) by the original BOOI versus 72 patients (78.3%) based on the modified BOOI. Meanwhile, an “unobstructed” urethra according to the original BOOI was present in 11 patients (12.0%), whereas according to the modified BOOI, only 2 (2.1%) would be labeled as “unobstructed”. In receiver operating characteristic curves, the area under the curve was 0.906 using the modified BOOI number versus 0.849 in the original BOOI (p<0.05). Conclusions The change in abdominal pressure was correlated with endoscopically-proven obstruction. Our simple modification of the BOOI on the basis of this finding better predicted bladder outlet obstruction and, therefore, should be considered when evaluating BOO in patients with LUTS/BPH.
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Affiliation(s)
- Jang Hee Han
- Department of Urology, Gangnam Severance Hospital, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Joo Yong Lee
- Department of Urology, Severance Hospital, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Joohan Kim
- Department of Mechanical Engineering, Seoul National University of Science & Technology, Seoul, Korea
| | - Dong Hyuk Kang
- Department of Urology, Yangpyeong Health Center, Yangpyeong, Korea
| | - Jong Kyu Kwon
- Department of Urology, Severance Hospital, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Young Deuk Choi
- Department of Urology, Severance Hospital, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Kang Su Cho
- Department of Urology, Gangnam Severance Hospital, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
- * E-mail:
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Kim SO, Na SW, Yu HS, Kwon D. Epididymal anomalies in boys with undescended testis or hydrocele: Significance of testicular location. BMC Urol 2015; 15:108. [PMID: 26497933 PMCID: PMC4619389 DOI: 10.1186/s12894-015-0099-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 10/12/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Epididymal anomalies and patent processus vaginalis are frequently found in boys with cryptorchidism or hydrocele. We conducted this study to evaluate the association between epididymal anomalies and testicular location or patent processus vaginalis in boys with undescended testis or hydrocele. METHODS Children undergoing surgery with undescended testis (group A, 136 boys and 162 testes) or communicating hydrocele (group B, 93 boys and 96 testes) were included. Testicular locations and epididymal anomalies were investigated prospectively. An anomalous epididymis was defined as anomalies of epididymal fusion that consisted of loss of continuity between the testis, the epididymis, and the long looping epididymis. The epididymis was considered normal when a normal, firm attachment between the testis, the caput, and the cauda epididymis was present. RESULTS The mean ages of groups A and B were 24.6 ± 19.7 (range, 8-52 months) and 31.4 ± 20.6 months (range, 10-59 months). The incidence of epididymal anomalies was significantly higher in group A than that in group B (65.4 % vs. 13.5 %, P < .001). The incidence of epididymal anomalies in boys with undescended testis was significantly different according to testis location. Epididymal anomalies were observed in 100 %, 91.4 %, and 39.3 % of cases when the testis was located in the abdomen, inguinal canal, and distal to the external inguinal ring, respectively (P < 0.001). CONCLUSION We conclude that epididymal anomalies were more frequent in boys with undescended testis than in boys with hydrocele, and that these anomalies were more frequent when undescended testis was at a higher level. These results suggest that testicular location is associated with epididymal anomalies rather than patent processus vaginalis.
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Affiliation(s)
- Sun-Ouck Kim
- From the Department of Urology, Chonnam National University Medical School, Gwangju, South Korea.
| | - Seong Woong Na
- From the Department of Urology, Chonnam National University Medical School, Gwangju, South Korea.
| | | | - Dongdeuk Kwon
- From the Department of Urology, Chonnam National University Medical School, Gwangju, South Korea.
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Bing SJ, Ha D, Ahn G, Cho J, Kim A, Park SK, Yu HS, Jee Y. Galectin isolated from parasite inhibits remission of experimental autoimmune encephalomyelitis by up-regulating autoantibody. Clin Exp Immunol 2015; 180:419-31. [PMID: 25619397 DOI: 10.1111/cei.12594] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 01/10/2015] [Accepted: 01/19/2015] [Indexed: 11/27/2022] Open
Abstract
Recently, parasite infections or parasite-derived products have been suggested as a therapeutic strategy with suppression of immunopathology, which involves the induction of regulatory T cells or/and T helper type 2 (Th2) responses. In a recent study, researchers reported that constructed recombinant galectin (rTl-gal) isolated from an adult worm of the gastrointestinal nematode parasite Toxascaris leonina attenuated clinical symptoms of inflammatory bowel disease in mice treated with dextran sulphate sodium. Noting the role of rTl-gal in inflammatory disease, we attempted to investigate the effect of the parasite via its rTl-gal on neuronal autoimmune disease using experimental autoimmune encephalomyelitis (EAE), a mouse inflammatory and demyelinating autoimmune disease model of human multiple sclerosis. In this model, rTl-gal-treated experimental autoimmune encephalomyelitis (EAE) mice failed to recover after the peak of the disease, leading to persistent central nervous system (CNS) damage, such as demyelination, gliosis and axonal damage. Further, rTl-gal-treated EAE mice markedly increased the number of CD45R/B220(+) B cells in both infiltrated inflammation and the periphery, along with the increased production of autoantibody [anti-myelin oligodendrocyte glycoprotein (MOG)35-55 ] in serum at chronic stage. Upon antigen restimulation, rTl-gal treatment affected the release of overall cytokines, especially interferon (IFN)-γ and tumour necrosis factor (TNF)-α. Our results suggest that galectin isolated from a gastrointestinal parasite can deliver a harmful effect to EAE contrary to its beneficial effect on inflammatory bowel disease.
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Affiliation(s)
- S J Bing
- Department of Veterinary Medicine and Institute for nuclear science & technology, Jeju National University, Jeju, South Korea
| | - D Ha
- Department of Veterinary Medicine and Institute for nuclear science & technology, Jeju National University, Jeju, South Korea
| | - G Ahn
- Department of Marine Bio-Food Sciences, Chonnam National University, Yeosu, South Korea
| | - J Cho
- Department of Veterinary Medicine and Institute for nuclear science & technology, Jeju National University, Jeju, South Korea
| | - A Kim
- Department of Advanced Convergence Technology & Science, Jeju National University, Jeju, South Korea
| | - S K Park
- Department of Parasitology, School of Medicine, Pusan National University, Yangsan, South Korea
| | - H S Yu
- Department of Parasitology, School of Medicine, Pusan National University, Yangsan, South Korea
| | - Y Jee
- Department of Veterinary Medicine and Institute for nuclear science & technology, Jeju National University, Jeju, South Korea.,Department of Advanced Convergence Technology & Science, Jeju National University, Jeju, South Korea
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Yun BH, Hwang EC, Yu HS, Chung H, Kim SO, Jung SI, Kang TW, Kwon DD, Park K, Choi C. Is histological prostate inflammation in an initial prostate biopsy a predictor of prostate cancer on repeat biopsy? Int Urol Nephrol 2015; 47:1251-7. [PMID: 26071871 DOI: 10.1007/s11255-015-1029-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 06/04/2015] [Indexed: 10/23/2022]
Abstract
PURPOSE To investigate whether histological inflammation detected in an initial prostate biopsy can predict the risk of prostate cancer on a repeat biopsy. METHODS This was a retrospective study of 171 patients who underwent repeat prostate biopsy for persistently elevated prostate-specific antigen after an initial negative biopsy result. The enrolled patients were divided into two groups according to the results of the repeat biopsy: the noncancer group (n = 126) and the cancer group (n = 45). Multivariate regression analysis was used to determine the effect of inflammation grade, aggressiveness, and prostate-related parameters on the detection of prostate cancer at the repeat biopsy. RESULTS Prostate inflammation grade (p = 0.005) and aggressiveness (p = 0.001) in the initial biopsy were significantly different between the cancer and noncancer groups. Factors associated with the risk of prostate cancer at the repeat biopsy were age [odds ratio (OR) 1.08; 95 % confidence interval (CI) 1.03-1.14], prostate-specific antigen density (OR 24.30; 95 % CI 9.3-62.9), prostate-specific antigen velocity (OR 1.05; 95 % CI 1.01-1.09), and inflammation aggressiveness (OR 0.05; 95 % CI 0.01-0.27). CONCLUSIONS A histological inflammatory finding at the initial prostate biopsy was negatively associated with prostate cancer detection in repeat biopsy. This result could be useful to determine the need for repeat prostate biopsy in patients with persistently elevated prostate-specific antigen.
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Affiliation(s)
- Bu Hyeon Yun
- Department of Urology, Chonnam National University Medical School, 42, Jebong-ro, Donggu, Gwangju, 501-757, Republic of Korea
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Cho MK, Park MK, Kang SA, Park SK, Lyu JH, Kim DH, Park HK, Yu HS. TLR2-dependent amelioration of allergic airway inflammation by parasitic nematode type II MIF in mice. Parasite Immunol 2015; 37:180-91. [PMID: 25559209 DOI: 10.1111/pim.12172] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Accepted: 12/24/2014] [Indexed: 12/29/2022]
Abstract
In our previous studies, the recombinant type II macrophage migration inhibitory factor homologue (rAs-MIF) secreted from Anisakis simplex suppressed experimental inflammation mouse model through IL-10 production and CD4(+)CD25(+)Foxp3(+) T-cell recruitment. Also, TLR2 gene expression was significantly increased following rAs-MIF treatment. To know the relation between TLR2 and amelioration mechanisms of rAs-MIF, we induced allergic airway inflammation by ovalbumin and alum with or without rAs-MIF under TLR2 blocking systems [anti-TLR2-specific antibody (α-mTLR2 Ab) treatment and using TLR2 knockout mice]. As a result, the amelioration effects of rAs-MIF in allergic airway inflammation model (diminished inflammation and Th2 response in the lung, increased IL-10 secretion, CD4(+)CD25(+)Foxp3(+) T-cell recruitment) were diminished under two of the TLR2 blocking model. The expression of TLR2 on the surface of lung epithelial cell was significantly elevated by rAs-MIF treatment or Pam3CSK (TLR2-specific agonist) treatment, but they might have some competition effect on the elevation of TLR2 expression. In addition, the elevation of IL-10 gene expression by rAs-MIF treatment was significantly inhibited by α-mTLR2 Ab or Pam3CSK pretreatment. In conclusion, anti-inflammatory effects of the rAs-MIF on OVA-induced allergic airway inflammation might be closely related to TLR2.
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Affiliation(s)
- M K Cho
- Department of Parasitology, School of Medicine, Pusan National University, Yangsan-si, Korea
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Cho YH, Jung SI, Chung HS, Yu HS, Hwang EC, Kim SO, Kang TW, Kwon DD, Park K. Antimicrobial susceptibilities of extended-spectrum beta-lactamase-producing Escherichia coli and Klebsiella pneumoniae in health care-associated urinary tract infection: focus on susceptibility to fosfomycin. Int Urol Nephrol 2015; 47:1059-66. [PMID: 26026972 DOI: 10.1007/s11255-015-1018-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 05/22/2015] [Indexed: 11/28/2022]
Abstract
PURPOSE The appearance of extended-spectrum beta-lactamase (ESBL)-producing gram-negative bacteria in urinary tract infection (UTI) constitutes an important therapeutic challenge. The aim of this study was to describe drug susceptibility profiles of ESBL-producing bacteria isolated from urine samples. We also determined the antimicrobial co-resistance to several agents, including fosfomycin. METHODS The computerized database was used to identify ESBL-positive urine samples. We analyzed E. coli and Klebsiella isolates obtained from urine cultures, and duplicate isolates and isolates not tested against fosfomycin were excluded. The cases were further categorized according to UTI definition [community-acquired (CoA) UTI, community-onset health care-associated (HCA) UTI, and hospital-acquired (HA) UTI]. ESBL isolates were stratified according to their origin into two groups: urology and non-urology isolates. RESULTS Antimicrobial susceptibilities of the strains to fosfomycin were tested in 277 ESBL-positive strains, 217 ESBL-EC strains, and 60 ESBL-KP strains. The most effective agents were carbapenems, such as imipenem and meropenem. The least active substances were ciprofloxacin (20.7 %), levofloxacin (22.7 %), trimethoprim-sulfamethoxazole (34.3 %), and ampicillin-clavulanate (42.9 %). Overall, 243 out of the 277 (87.7 %) isolates tested were susceptible to fosfomycin. Higher fosfomycin sensitivity was observed in E. coli (94.9 %) compared to Klebsiella (61.7 %) (p = 0.001). ESBL-positive isolates from urological (68 isolates) and non-urological patients (209 isolates) showed similar susceptibility profiles. Other than carbapenems, isolates from CoA-UTI showed higher sensitivity to fosfomycin (100 %) and nitrofurantoin (93.1 %), isolates from HCA-UTI showed higher sensitivity to amikacin (94.1 %), and isolates from HA-UTI showed overall poor sensitivity to antibiotics. CONCLUSIONS Fosfomycin could be an alternative treatment option for UTIs related to ESBL-producing E. coli spp. and CoA-UTI, but not for UTIs related to ESBL-producing Klebsiella spp. Antimicrobial susceptibilities of ESBL-producing strains were different according to the UTI classification. Fosfomycin showed decreased activity against isolates from HCA-UTI and HA-UTI. However, further clinical verification is required to assess the clinical efficacy of fosfomycin for the treatment of UTIs caused by ESBL-producing E. coli isolates.
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Affiliation(s)
- Yang Hyun Cho
- Departments of Urology, Chonnam National University Medical School, Gwangju, Republic of Korea
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Chung HS, Ryu JG, Shin B, Nam DH, Yu HS, Hwang EC, Kim SO, Jung SI, Kang TW, Kwon D, Park K. MP20-11 ANTIMICROBIAL SUSCEPTIBILITIES OF URINARY EXTENDED SPECTRUM BETA-LACTAMASE-PRODUCING ESCHERICHIA COLI AND KLEBSIELLA PNEUMONIAE TO FOSFOMYCIN IN HEALTH CARE ASSOCIATED URINARY TRACT INFECTION. J Urol 2015. [DOI: 10.1016/j.juro.2015.02.983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Han JH, Yu HS, Lee JY, Kim J, Kwon JK, Choi HC, Cho KS. MP71-04 SIMPLE MODIFICATION OF BLADDER OUTLET OBSTRUCTION INDEX FOR BETTER PREDICTION OF ENDOSCOPICALLY PROVEN PROSTATIC OBSTRUCTION. J Urol 2015. [DOI: 10.1016/j.juro.2015.02.2617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Affiliation(s)
- Ho Song Yu
- Department of Urology, Chonnam National University Hospital, Gwangju, Korea
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Jung JE, Yoon HJ, Yu HS, Lee NK, Jee HS, Paik HD. Short communication: Physicochemical and antioxidant properties of milk supplemented with red ginseng extract. J Dairy Sci 2014; 98:95-9. [PMID: 25465553 DOI: 10.3168/jds.2014-8476] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 10/04/2014] [Indexed: 11/19/2022]
Abstract
This study investigated the effect of red ginseng extract (RGE) on the physicochemical properties, sensory test, and antioxidant activity of milk. The milk samples with RGE added at 0.5, 1, 1.5, and 2% were analyzed during storage at 4°C. The physicochemical properties included composition of milk, pH, titratable acidity, and color. The antioxidant activity of milk samples was determined using the 2,2-diphenyl-1-picrylhydrazyl method, β-carotene bleaching assay, and ferric thiocyanate assay. An increase in the amount of RGE in milk resulted in an increase of lactose and total solids content, titratable acidity, and a* and b* values, whereas fat and protein contents remained unchanged. Also, pH and L* value decreased. The antioxidant activity of milk samples supplemented with RGE was higher than that of the control sample. Sensory evaluation was performed using a quantitative descriptive analysis. Two types of samples were used: (1) sterilized milk fortified with RGE (0.5, 1, 1.5, and 2%) and (2) 2% RGE, 2% RGE with oligosaccharide, and 2% RGE with oligosaccharide and cyclodextrin. The addition of oligosaccharide and cyclodextrin could effect an increase of sweetness, a decrease of bitterness and flavor of RGE, and aftertaste. Therefore, milk supplemented with RGE could be useful as a functional food.
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Affiliation(s)
- J E Jung
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 143-701, Korea
| | - H J Yoon
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 143-701, Korea
| | - H S Yu
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 143-701, Korea
| | - N-K Lee
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 143-701, Korea
| | - H-S Jee
- Food R&D Center, Ilhwa Co. Ltd., 25Angol-ro, 56 Beon-gil, Guri-si, Gyeonggi-do 471-711, Korea
| | - H-D Paik
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 143-701, Korea; Bio/Molecular Informatics Center, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 143-701, Korea.
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Chong A, Hwang I, Ha JM, Yu SH, Hwang EC, Yu HS, Kim SO, Jung SI, Kang TW, Kwon DD, Park K. Application of bone scans for prostate cancer staging: Which guideline shows better result? Can Urol Assoc J 2014; 8:E515-9. [PMID: 25210554 DOI: 10.5489/cuaj.2054] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
INTRODUCTION We evaluated the accuracy of current guidelines by analyzing bone scan results and clinical parameters of patients with prostate cancer to determine the optimal guideline for predicting bone metastasis. METHODS We retrospectively analyzed patients who were diagnosed with prostate cancer and who underwent a bone scan. Bone metastasis was confirmed by bone scan results with clinical and radiological follow-up. Serum prostate-specific antigen, Gleason score, percent of positive biopsy core, clinical staging and bone scan results were analyzed. We analyzed diagnostic performance in predicting bone metastasis of the guidelines of the European Association of Urology (EAU), American Urological Association (AUA), and the National Comprehensive Cancer Network (NCCN) guidelines as well as Briganti's classification and regression tree (CART). We also compared the percent of positive biopsy core between patients with and without bone metastases. RESULTS A total 167 of 806 patients had bone metastases. Receiver operating curve analysis revealed that the AUA and EAU guidelines were better for detecting bone metastases than were Briganti's CART and NCCN. No significant difference was observed between AUA and EAU guidelines. Patients with bone metastases had a higher percent positive core than did patients without metastasis (the cut-off value >55.6). CONCLUSION The EAU and AUA guidelines showed better results than did Briganti's CART and NCCN for predicting bone metastasis in the enrolled patients. A bone scan is strongly recommended for patients who have a higher percent positive core and who meet the EAU and AUA guidelines.
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Affiliation(s)
- Ari Chong
- Department of Nuclear Medicine, Chosun University Hospital, Republic of Korea
| | - Insang Hwang
- Department of Urology, Chonnam National University Hospital, Republic of Korea
| | - Jung-Min Ha
- Department of Nuclear Medicine, Chosun University Hospital, Republic of Korea
| | - Seong Hyeon Yu
- Department of Urology, Chonnam National University Hospital, Republic of Korea
| | - Eu Chang Hwang
- Department of Urology, Chonnam National University Hospital, Republic of Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Hospital, Republic of Korea
| | - Sun Ouck Kim
- Department of Urology, Chonnam National University Hospital, Republic of Korea
| | - Seung-Il Jung
- Department of Urology, Chonnam National University Hospital, Republic of Korea
| | - Taek Won Kang
- Department of Urology, Chonnam National University Hospital, Republic of Korea
| | - Dong Deuk Kwon
- Department of Urology, Chonnam National University Hospital, Republic of Korea
| | - Kwangsung Park
- Department of Urology, Chonnam National University Hospital, Republic of Korea
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Cho YH, Seo YH, Chung SJ, Hwang I, Yu HS, Kim SO, Jung SI, Kang TW, Kwon DD, Park K, Hwang JE, Heo SH, Kim GS, Hwang EC. Predictors of intravesical recurrence after radical nephroureterectomy for upper urinary tract urothelial carcinoma: an inflammation-based prognostic score. Korean J Urol 2014; 55:453-9. [PMID: 25045443 PMCID: PMC4101114 DOI: 10.4111/kju.2014.55.7.453] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 04/09/2014] [Indexed: 11/18/2022] Open
Abstract
PURPOSE Systemic inflammatory responses, which are defined in terms of the Glasgow prognostic score (GPS), have been reported to be independent predictors of unfavorable outcomes in various human cancers. We assessed the utility of the GPS as a predictor of intravesical recurrence after radical nephroureterectomy (RNU) in upper urinary tract carcinoma (UTUC). MATERIALS AND METHODS We collected data for 147 UTUC patients with no previous history of bladder cancer who underwent RNU from 2004 to 2012. Associations between perioperative clinicopathological variables and intravesical recurrence were analyzed by using univariate and multivariate Cox regression models. RESULTS Overall, 71 of 147 patients (48%) developed intravesical recurrence, including 21 patients (30%) diagnosed with synchronous bladder tumor. In the univariate analysis, performance status, diabetes mellitus (DM), serum albumin, C-reactive protein, GPS, and synchronous bladder tumor were associated with intravesical recurrence. In the multivariate analysis, performance status (hazard ratio [HR], 2.33; 95% confidence interval [CI], 1.41-3.85; p=0.001), DM (HR, 2.04; 95% CI, 1.21-3.41; p=0.007), cortical thinning (HR, 2.01; 95% CI, 1.08-3.71; p=0.026), and GPS (score of 1: HR, 6.86; 95% CI, 3.69-12.7; p=0.001; score of 2: HR, 5.96; 95% CI, 3.10-11.4; p=0.001) were independent predictors of intravesical recurrence. CONCLUSIONS Our results suggest that the GPS as well as performance status, DM, and cortical thinning are associated with intravesical recurrence after RNU. Thus, more careful follow-up, coupled with postoperative intravesical therapy to avoid bladder recurrence, should be considered in these patients.
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Affiliation(s)
- Yang Hyun Cho
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Young Ho Seo
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Seung Jun Chung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Insang Hwang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Seung Il Jung
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Taek Won Kang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Dong Deuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Kwangsung Park
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Jun Eul Hwang
- Department of Hematology-Oncology, Chonnam National University Medical School, Gwangju, Korea
| | - Suk Hee Heo
- Department of Radiology, Chonnam National University Medical School, Gwangju, Korea
| | - Geun Soo Kim
- Department of Urology, Gwangju Hospital, Gwangju, Korea
| | - Eu Chang Hwang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Ryu JG, Yu SH, Jeong SH, Yun BH, Yu HS, Kim SO, Kwon D. Transobturator tape for female stress urinary incontinence: preoperative valsalva leak point pressure is not related to cure rate or quality of life improvement. Korean J Urol 2014; 55:265-9. [PMID: 24741416 PMCID: PMC3988438 DOI: 10.4111/kju.2014.55.4.265] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 10/21/2013] [Indexed: 11/18/2022] Open
Abstract
Purpose We investigated whether the Valsalva leak point pressure (VLPP) is valuable for predicting postoperative outcome measurement after transobturator suburethral tape (TVT-O) implantation for treating stress urinary incontinence (SUI) in women. Materials and Methods A total of 204 female patients who underwent TVT-O placement for treatment of SUI from March 2008 to February 2012 were enrolled in this retrospective study. All patients completed the incontinence quality of Life questionnaire (I-QoL), a self-reported quality of life measure specific to urinary incontinence, and the cure rate of incontinence was measured before and 6 months after surgery. Cure was defined as no leakage of urine postoperatively both subjectively and objectively. We compared pre- and postoperative I-QoL scores according to preoperative VLPP and Stamey grade. Results The numbers of patients with Stamey grades I, II, and III were 99 (48.5%), 84 (41.2%), and 21 (10.3%), respectively. A total of 30 (14.7%), 87 (42.6%), and 87 patients (42.6%) showed VLPP≤60, 60<VLPP≤90, and VLPP>90 cm H2O, respectively. Preoperative VLPP was not significantly different according to preoperative I-QoL or change in I-QoL after surgery. However, I-QoL after surgery improved in patients with a high preoperative Stamey grade (p=0.001). Conclusions VLPP was not a factor related to surgical outcome from the midurethral sling procedure. Stamey grade rather than VLPP was important for predicting subjective quality of life and improved incontinence-related quality of life after surgery.
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Affiliation(s)
- Je-Guk Ryu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Seong Hyeon Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Se Heon Jeong
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Bu Hyeon Yun
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Ho Song Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Sun-Ouck Kim
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Dongdeuk Kwon
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Chang Hwang E, Chung HS, Kim JS, Hwang I, Yu HS, Oh KJ, Kim SO, Jung SI, Kang TW, Kwon DD, Park K. MP28-01 GENERATION OF POTENT CYTOTOXIC T LYMPHOCYTES AGAINST BLADDER CANCER CELLS BY DENDRITIC CELLS LOADED WITH DYING T24 BLADDER CANCER CELLS. J Urol 2014. [DOI: 10.1016/j.juro.2014.02.650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kim SO, Yu HS, Hwang IS, Hwang EC, Kang TW, Kwon D. Early Pyeloplasty for Recovery of Parenchymal Thickness in Children with Unilateral Ureteropelvic Junction Obstruction. Urol Int 2014; 92:473-6. [DOI: 10.1159/000357144] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Accepted: 11/05/2013] [Indexed: 11/19/2022]
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Abstract
One of the most economically-viable processes for the bioconversion of many types of lignocellulosic wastes is represented by edible mushroom cultivation. Lentinula edodes, Volvariella volvacea and Pleurotus sajor-caju are three important commercially cultivated mushrooms which exhibit varying abilities to utilise different lignocellulosics as growth substrate. Examination of the lignocellulolytic enzyme profiles of the three species show this diversity to be reflected in qualitative variations in the major enzymic determinants (i.e. cellulases, ligninases) required for substrate bioconversion. For example, L. edodes, which is cultivated on highly lignified substrates such as wood or sawdust, produces two extracellular enzymes which have been associated with lignin depolymerisation in other fungi, (manganese peroxidase and laccase). Conversely, V. volvacea, which prefers high cellulose-, low lignin-containing substrates produces a family of cellulolytic enzymes including at least five endoglucanases, five cellobiohydrolases and two β-glucosidases, but none of the recognised lignin-degrading enzymes.
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Jang WS, Jeong SH, Yu HS, Hwang IS, Hwang EC, Kim SO, Oh KJ, Jung SI, Kwon DD, Park K, Kang TW. Initial experience of transurethral resection with pediatric resectoscope for incomplete anterior urethral stricture. Int Braz J Urol 2013; 39:295; discussion 296. [PMID: 23683679 DOI: 10.1590/s1677-5538.ibju.2013.02.22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Accepted: 02/27/2013] [Indexed: 11/22/2022] Open
Abstract
PURPOSE Endoscopic urethrotomy is an alternative method in treatment of urethral stricture. However, it have high recurrence rate because of the remained fibrotic tissue. Removal of the fibrotic tissue can maintain the patency of the urethral lumen after the procedure. We report the therapeutic efficacy of our initial experience using pediatric resectoscope for treating anterior urethral stricture in 16 cases. MATERIALS AND METHODS From January 2009 to April 2011, transurethral resection with pediatric resectoscope was primarily performed on 16 patients with anterior urethral stricture. Retrograde urethrography, uroflowmetry, postvoid residual volume, IPSS score and QoL score were performed preoperatively. We used 11.5Fr pediatric resectoscope (Wolf) and monopolar electrosurgical generator. The stricture was incised under vision at the 12 o'clock location or the site of maximum scar tissue or narrowing in asymmetric strictures for working space. After incision, transurethral resection with pediatric resectoscope was performed to all scar tissues. Monopolar cutting current was set on 45 watt and coagulation current was set on 30 watt, fulgurate mode. Postoperatively, drainage of the bladder was performed for 7 days using an 18F latex catheter. Patients were followed up by IPSS score, QoL score, uroflowmetry and postvoid residual volume. RESULTS Successful results without recurrence were achieved in 11 of 16 patients. Postoperative urethral dilation had been performed average 2.4 times (0~6 times). When we classified the results by etiology, the number of successful results in strictures with a trauma, iatrogenic, or unknown cause was 5 (7/11), 3 (3/4) and 1 (1/1), respectively. In 5 patients who failed treatment, we repeated transurethral resection with pediatric resectoscope in 1 patient, and periodic urethral dilation in 4 patients. No operative complications occurred in any patients. CONCLUSIONS Transurethral resection with pediatric resectoscope is an effective therapeutic method for anterior urethral stricture. More long-term follow-up and large scale studies are needed to confirm the efficacy of this procedure.
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Affiliation(s)
- Won Seok Jang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Yu SH, Ryu JG, Jeong SH, Hwang EC, Jang WS, Hwang IS, Yu HS, Kim SO, Jung SI, Kang TW, Kwon DD, Park K, Hwang JE, Kim GS. Predicting factors for stent failure-free survival in patients with a malignant ureteral obstruction managed with ureteral stents. Korean J Urol 2013; 54:316-21. [PMID: 23700497 PMCID: PMC3659225 DOI: 10.4111/kju.2013.54.5.316] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Accepted: 01/04/2013] [Indexed: 12/16/2022] Open
Abstract
Purpose To determine predictive factors for stent failure-free survival in patients treated with a retrograde ureteral stent for a malignant ureteral obstruction. Materials and Methods We retrospectively reviewed 71 patients who underwent insertion of a cystoscopic ureteral stent due to a malignant ureteral obstruction between May 2004 and June 2011. Performance status, type of cancer, hydronephrosis grade, location of the obstruction, presence of bladder invasion, C-reactive protein (CRP), serum albumin, and inflammation-based prognostic score (Glasgow prognostic score, GPS) were assessed using a Cox proportional regression hazard model as predicting factors for stent failure. Results A univariate analysis indicted that hypoalbuminemia (<3.5 g/dL; hazard ratio [HR], 2.43; 95% confidence interval [CI], 1.21 to 4.86; p=0.012), elevated CRP (≥1 mg/dL; HR, 4.79; 95% CI, 2.0 to 11.1; p=0.001), and presence of a distal ureter obstruction (HR, 3.27; 95% CI, 1.19 to 8.95; p=0.021) were associated with stent failure-free survival. A multivariate analysis revealed that the presence of a mid and lower ureteral obstruction (HR, 3.27; 95% CI, 1.19 to 8.95; p=0.007), GPS ≥1 (HR, 7.22; 95% CI, 2.89 to 18.0; p=0.001), and elevated serum creatinine before ureteral stent placement (>1.2 mg/dL; HR, 2.16; 95% CI, 1.02 to 4.57; p=0.044) were associated with stent failure-free survival. Conclusions A mid or lower ureteral obstruction, GPS ≥1, and serum creatinine before ureteral stent insertion >1.2 mg/dL were unfavorable predictors of stent failure-free survival. These factors may help urologists predict survival time.
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Affiliation(s)
- Seong Hyeon Yu
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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Abstract
The incidence of kidney cancer has been rising over the past two decades, especially in cases in which the disease is localized and small in size (<4 cm). This rise is mainly due to the widespread use of routine abdominal imaging such as ultrasonography, computed tomography, and magnetic resonance imaging. Early detection was initially heralded as an opportunity to cure an otherwise lethal disease. However, despite increasing rates of renal surgery in parallel to this trend, mortality rates from renal cell carcinoma have remained relatively unchanged. Moreover, data suggest that a substantial proportion of small renal masses are benign. As a result, the management of small renal masses has continued to evolve along two basic themes: it has become less radical and less invasive. These shifts are in part a reflection of an improved understanding that the biology of incidentally discovered renal cell carcinoma may be more indolent than previously thought. However, not all small renal masses are indolent, and de novo metastatic disease can develop at the initial presentation. Therefore, it is with this background of clinical uncertainty and biological heterogeneity that clinicians must interpret the benefits and disadvantages of various clinical approaches to small renal masses.
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Affiliation(s)
- Eu Chang Hwang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
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