1.Lessons learnt in the management of primary invasive penile cancer in an Australian tertiary referral centre: Clinical outcomes with a minimum 48 months follow-up study.
Eric CHUNG ; Sun YANG ; Louise WHITE ; Simon WOOD ; David NICOL
Korean Journal of Urology 2015;56(2):125-130
PURPOSE: To report on lessons learnt in the management of primary invasive penile cancer in a major tertiary hospital in Australia. MATERIALS AND METHODS: Medical records for all patients who underwent surgery for primary invasive penile cancer between January 2000 and January 2011 were obtained. Patient demographics, clinical status of inguinal node, cancer stage and clinical outcomes were reviewed. All patients were followed up for a minimum of 48 months postoperative unless patient deceased within the first 48 months from the time of penile cancer surgery. RESULTS: Over the 11-year period, a total of 23 cases of invasive penile cancer were identified. Partial penectomy was the most common form of organ preserving surgery and the majority of patients have pT1b disease. Of the 9 patients with clinically palpable inguinal nodes, 7 patients were diagnosed with pN3 disease following inguinal lymphadenectomy. The Kaplan-Meier cancer-specific survival at 72 months showed decreasing survival based on tumour stage (83% in pT1, 79% in pT2, and 64% in pT3 disease) and nodal disease (100% in node negative, 50% in superficial inguinal lymphadenopathy, and 38% in patients with deep inguinal and/or pelvic lymphadenopathy) (p=0.082). The Kaplan-Meier cancer-specific survival revealed statistically significant difference in survival outcome in patients with local recurrence vs. systemic metastasis disease (33% vs. 17%, p=0.008). CONCLUSIONS: The presence of high risk features such as tumour stage, lymph node involvement and distant metastasis carries a significant higher risk of death and tumour recurrence in patients with penile cancer and inguinal lymph node metastasis.
Adult
;
Aged
;
Aged, 80 and over
;
Carcinoma, Squamous Cell/pathology/secondary/*surgery
;
Follow-Up Studies
;
Humans
;
Kaplan-Meier Estimate
;
Lymph Node Excision
;
Lymphatic Metastasis
;
Male
;
Middle Aged
;
Neoplasm Invasiveness
;
Neoplasm Staging
;
Penile Neoplasms/pathology/*surgery
;
Prognosis
;
Retrospective Studies
;
Risk Factors
;
Treatment Outcome
2.Renal cryoablation of small renal masses: A Korea University experience.
Hyung Keun KIM ; Jong Hyun PYUN ; Jae Yoon KIM ; Seung Bin KIM ; Seok CHO ; Sung Gu KANG ; Jeong Gu LEE ; Je Jong KIM ; Jun CHEON ; Seok Ho KANG
Korean Journal of Urology 2015;56(2):117-124
PURPOSE: To evaluate the perioperative, functional, and oncological outcomes of renal cryoablation (RC) of small renal masses (SRMs) performed in Korea University Hospital. MATERIALS AND METHODS: We reviewed an Institutional Review Board-approved database of 70 patients who underwent RC and were followed up for a minimum of 3 months by a single surgeon in Korea University Hospital from August 2007 to May 2014. Among these patients, 68 patients (79 renal masses) were enrolled in our research. We evaluated perioperative, functional, and oncologic outcomes of RC. RESULTS: A total of 68 patients (79 renal masses) underwent RC in our institution. The mean age of the patients was 62.0 years. The mean tumor size was 2.25 cm. Among the 59 patients who underwent laparoscopic surgery, only 1 patient (1.47%) was converted to open surgery. No other perioperative complications occurred. The mean preoperative and 1-month postoperative estimated glomerular filtration ratio (eGFR) were 71.8 and 68.3 mL/min/1.73 m2, respectively (p=0.19). The mean 1-year postoperative eGFR was 65.0 mL/min/1.73 m2 (p=0.25). The mean follow-up period was 59.76 months (range, 3-119 months). Local tumor recurrence occurred in eight tumors (15.4%; a total of 52 renal cell carcinomas). Concerning treatment in the patients with recurrence, five patients underwent re-treatment and three patients are under active surveillance. None of the eight patients who experienced local recurrence had additional recurrence or tumor progression during the follow-up period. In our study, the recurrence-free rate was 83.0% and the cancer-specific survival rate was 100%. Moreover, the 5- and 10-year overall survival rates were both 100%. CONCLUSIONS: Long-term experience with RC in our institution demonstrates that RC is a safe and effective treatment for patients with SRMs.
Adult
;
Aged
;
Aged, 80 and over
;
Biopsy
;
Carcinoma, Renal Cell/pathology/radiography/*surgery
;
Cryosurgery/adverse effects/*methods
;
Follow-Up Studies
;
Glomerular Filtration Rate
;
Humans
;
Kidney Neoplasms/pathology/radiography/*surgery
;
Laparoscopy/adverse effects/methods
;
Middle Aged
;
Neoplasm Recurrence, Local
;
Tomography, X-Ray Computed
;
Treatment Outcome
;
Young Adult
3.A clinicogenetic model to predict lymph node invasion by use of genome-based biomarkers from exome arrays in prostate cancer patients.
Jong Jin OH ; Seunghyun PARK ; Sang Eun LEE ; Sung Kyu HONG ; Sangchul LEE ; Hak Min LEE ; Jeung Keun LEE ; Jin Nyoung HO ; Sungroh YOON ; Seok Soo BYUN
Korean Journal of Urology 2015;56(2):109-116
PURPOSE: Genetic variations among prostate cancer (PCa) patients who underwent radical prostatectomy (RP) and pelvic lymph node dissection were evaluated to predict lymph node invasion (LNI). Exome arrays were used to develop a clinicogenetic model that combined clinical data related to PCa and individual genetic variations. MATERIALS AND METHODS: We genotyped 242,186 single-nucleotide polymorphisms (SNPs) by using a custom HumanExome BeadChip v1.0 (Illumina Inc.) from the blood DNA of 341 patients with PCa. The genetic data were analyzed to calculate an odds ratio as an estimate of the relative risk of LNI. We compared the accuracies of the multivariate logistic model incorporating clinical factors between the included and excluded selected SNPs. The Cox proportional hazard models with or without genetic factors for predicting biochemical recurrence (BCR) were analyzed. RESULTS: The genetic analysis indicated that five SNPs (rs75444444, rs8055236, rs2301277, rs9300039, and rs6908581) were significant for predicting LNI in patients with PCa. When a multivariate model incorporating clinical factors was devised to predict LNI, the predictive accuracy of the multivariate model was 80.7%. By adding genetic factors in the aforementioned multivariate model, the predictive accuracy increased to 93.2% (p=0.006). These genetic variations were significant factors for predicting BCR after adjustment for other variables and after adding the predictive gain to BCR. CONCLUSIONS: Based on the results of the exome array, the selected SNPs were predictors for LNI. The addition of individualized genetic information effectively enhanced the predictive accuracy of LNI and BCR among patients with PCa who underwent RP.
Aged
;
Biomarkers, Tumor/*genetics
;
Biopsy
;
DNA, Neoplasm/genetics
;
Exome
;
Gene Frequency
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Genome
;
Genotype
;
Humans
;
Lymph Node Excision
;
Lymph Nodes/pathology
;
Lymphatic Metastasis
;
Male
;
Middle Aged
;
*Models, Genetic
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Neoplasm Invasiveness
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Polymorphism, Single Nucleotide
;
Predictive Value of Tests
;
Prospective Studies
;
Prostatectomy
;
Prostatic Neoplasms/*genetics/pathology/surgery
4.Current status of penile rehabilitation after radical prostatectomy.
Korean Journal of Urology 2015;56(2):99-108
Although disease-free survival remains the primary goal of prostate cancer treatment, erectile dysfunction (ED) remains a common complication that affects the quality of life. Even though several preventive and therapeutic strategies are available for ED after radical prostatectomy (RP), no specific recommendations have been made on the optimal rehabilitation or treatment strategy. Several treatment options are available, including phosphodiesterase-5 inhibitors, vacuum erection devices, intracavernosal or intraurethral prostaglandin injections, and penile prostheses. Urologists must consider more effective ways to establish optimal treatments for ED after RP. ED is an important issue among patients with prostate cancer, and many patients hope for early ED recovery after surgery. This review highlights the currently available treatment options for ED after RP and discusses the limitations of each.
Alprostadil/therapeutic use
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Erectile Dysfunction/etiology/*rehabilitation
;
Humans
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Male
;
Penile Implantation
;
Phosphodiesterase 5 Inhibitors/therapeutic use
;
Prostatectomy/*adverse effects/rehabilitation
;
Prostatic Neoplasms/*surgery
;
Risk Factors
;
Vacuum
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Vasodilator Agents/therapeutic use
5.Clinically relevant genetic characterization of prostate tumors: How close are we to the goal?.
Yuri TOLKACH ; Florian IMKAMP ; Konstantin GODIN ; Hendrik VAN POPPEL
Korean Journal of Urology 2015;56(2):90-98
Substantial efforts are being made in research on the molecular genetic characterization of prostate cancer. The number of fundamental research programs in prostate cancer molecular biology and genetics is overwhelming. However, a significant gap appears to exist between the huge number of studies on the genetic characterization of prostate cancer, which often have limited translation into clinical practice or simply were not conceived to be so translated, and clinical practice. From a clinical point of view, this balance should be urgently shifted towards rapid translation into urological practice. However, prostate cancer is characterized by prominent genetic heterogeneity, which could be a very difficult barrier to overcome. In this review, we discuss the possible clinical applications of scientific data from fundamental studies of prostate cancer genetics, the main problems with the translation of these data to clinics, and future perspectives.
Biomarkers, Tumor/genetics
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Epigenesis, Genetic
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Gene Expression Regulation, Neoplastic
;
Genetic Predisposition to Disease
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Goals
;
Humans
;
Male
;
Prostatic Neoplasms/*genetics
;
Transcriptome
6.Next generation sequencing and urologic cancer.
Korean Journal of Urology 2015;56(2):87-89
No abstract available.
DNA, Neoplasm/genetics
;
High-Throughput Nucleotide Sequencing/*methods
;
Humans
;
Sequence Analysis, DNA/methods
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Urologic Neoplasms/*genetics
7.Right sided double inferior vena cava with obstructed retrocaval ureter: Managed with single incision multiple port laparoscopic technique using "Santosh Postgraduate Institute tacking ureteric fixation technique".
Santosh KUMAR ; Shivanshu SINGH ; Nitin GARG
Korean Journal of Urology 2015;56(4):330-333
Right double inferior vena cava with obstructed retrocaval ureter is an extremely rare anomaly with only a few reported cases in the literature. To the best of our knowledge, this is the first case report describing ureteric repair by use of a single-incision laparoscopic technique. In addition, this report addresses the underlying surgical challenges of this repair and provides a brief review of the embryology of this anomaly. The "Santosh Postgraduate Institute ureteric tacking fixation technique" provides ease of end-to-end uretero-ureteric anastomosis in a single-incision laparoscopic surgery.
Humans
;
Intraoperative Care/methods
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Intraoperative Complications/*prevention & control
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Laparoscopy/methods
;
Magnetic Resonance Imaging
;
Male
;
*Retrocaval Ureter/diagnosis/physiopathology/surgery
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Treatment Outcome
;
Urography/methods
;
Urologic Surgical Procedures/*methods
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*Vena Cava, Inferior/abnormalities/surgery
;
Young Adult
8.Predictive role of hematologic parameters in testicular torsion.
Mustafa GUNES ; Mehmet UMUL ; Muammer ALTOK ; Mehmet AKYUZ ; Cemal Selcuk ISOGLU ; Fatih URUC ; Bekir ARAS ; Alpaslan AKBAS ; Ercan BAS
Korean Journal of Urology 2015;56(4):324-329
PURPOSE: To evaluate the predictive role of the neutrophil to lymphocyte ratio (NLR), platelet to lymphocyte ratio (PLR), mean platelet volume (MPV), and platelet count (PLT) in the diagnosis of testicular torsion (TT) and testicular viability following TT. MATERIALS AND METHODS: We analyzed two study groups in this retrospective study: 75 patients with a diagnosis of TT (group 1) and 56 age-matched healthy subjects (group 2). We performed a complete blood count as a part of the diagnostic procedure, and NLR, PLR, MPV, and PLT values were recorded. We compared the patient and control groups in terms of these parameters. Then, TT patients were divided into two subgroups according to the time elapsed since the onset of symptoms. Subsequently, we evaluated the relationship between the duration of symptoms and these parameters. RESULTS: There were significant differences between groups 1 and 2 in NLR, PLR, and PLT (p<0.001 for all). There was no predictive role of MPV in the diagnosis of TT (p=0.328). We determined significantly high sensitivity and specificity levels for NLR in the prediction of TT diagnosis (84% and 92%, respectively). Furthermore, NLR was significantly related to the duration of symptoms in TT patients (p=0.01). CONCLUSIONS: NLR may be a useful parameter in the diagnosis of TT. Furthermore, NLR may be used as a predictive factor for testicular viability following TT.
Adolescent
;
Humans
;
Lymphocyte Count/*methods
;
Male
;
Neutrophils/*pathology
;
Platelet Count/methods
;
Predictive Value of Tests
;
Prognosis
;
Retrospective Studies
;
Sensitivity and Specificity
;
*Spermatic Cord Torsion/blood/diagnosis/physiopathology
;
Symptom Assessment/methods
;
*Testis/pathology/physiopathology
;
Tissue Survival
;
Turkey
9.Changes of calcific density in pediatric patients with testicular microlithiasis.
Bumjin LIM ; Sang Hoon SONG ; Geehyun SONG ; Kun Suk KIM
Korean Journal of Urology 2015;56(4):318-323
PURPOSE: Testicular microlithiasis (TM) is a relatively rare clinical entity of controversial significance characterized by the existence of hydroxyapatite microliths located in the seminiferous tubules. The aim of this study was to observe the natural course of changes in the calcific density of pediatric TM. MATERIALS AND METHODS: We included a total of 23 TM patients undergoing scrotal ultrasound (US) on at least two occasions from July 1997 to August 2014. We retrospectively analyzed the patient characteristics, clinical manifestations, specific pathological features, and clinical outcomes. We measured the calcified area and compared the calcific density between the initial and final USs. RESULTS: The mean age at diagnosis was 11.3+/-4.6 years, and the follow-up period was 79.1+/-38.8 months (range, 25.4-152.9 months). During the follow-up period, no patients developed testicular cancer. Calcific density on US was increased in the last versus the initial US, but not to a statistically significant degree (3.74%+/-6.0% vs. 3.06%+/-4.38%, respectively, p=0.147). When we defined groups with increased and decreased calcification, we found that diffuse TM was categorized into the increased group to a greater degree than focal TM (10/20 vs. 4/23, respectively, p=0.049). In addition, five of eight cases of cryptorchidism (including two cases of bilateral cryptorchidism) were categorized in the increased calcification group. CONCLUSIONS: Diffuse TM and cryptorchidism tend to increase calcific density. Close observation is therefore recommended for cases of TM combined with cryptorchidism and cases of diffuse TM.
Adolescent
;
Calcification, Physiologic
;
*Calculi/complications/epidemiology/pathology/physiopathology
;
Child
;
Cryptorchidism/diagnosis/etiology
;
Densitometry/methods
;
Follow-Up Studies
;
Gonadoblastoma/diagnosis/etiology
;
Humans
;
Male
;
Republic of Korea
;
Scrotum/*ultrasonography
;
Seminiferous Tubules/*pathology
;
*Testicular Diseases/complications/epidemiology/pathology/physiopathology
;
*Testicular Neoplasms/diagnosis/epidemiology/etiology
10.Elderly men over 65 years of age with late-onset hypogonadism benefit as much from testosterone treatment as do younger men.
Farid SAAD ; Aksam YASSIN ; Ahmad HAIDER ; Gheorghe DOROS ; Louis GOOREN
Korean Journal of Urology 2015;56(4):310-317
PURPOSE: To investigate the potential benefits of testosterone administration to elderly men (>65 years) with late-onset hypogonadism (LOH) in comparison with younger men and to assess the safety of testosterone administration to elderly men. MATERIALS AND METHODS: A total of 561 hypogonadal men from two registry studies were divided into age groups of < or =65 years (group Y, n=450; range, 32-65 years) and >65 years (group O, n=111; range, 66-84 years). Following an initial 6-week interval, all men were treated with 3-month injections of parenteral testosterone undecanoate for up to 6 years. RESULTS: Over the 6 years, there was a progressive decrease of body weight and waist circumference. Beneficial effects on lipids and other metabolic factors and on psychological and sexual functioning progressed over the first 24 to 42 months and were sustained. Rather than a deterioration, there was an improvement of urinary parameters. Prostate volume and prostate-specific antigen increased moderately. Hematocrit levels increased but remained within safe margins. CONCLUSIONS: The benefits of restoring serum testosterone in men with LOH were not significantly different between men older than 65 years of age and younger men. There were no indications that side effects were more severe in elderly men. The effects on prostate and urinary function and hematocrit were within safe margins. Age itself need not be a contraindication to testosterone treatment of elderly men with LOH.
Age Factors
;
Age of Onset
;
Aged
;
Androgens/administration & dosage
;
Anthropometry/methods
;
Drug Monitoring/methods
;
Germany
;
Humans
;
*Hypogonadism/diagnosis/drug therapy/epidemiology/physiopathology/psychology
;
Male
;
Middle Aged
;
Organ Size
;
*Prostate/drug effects/pathology
;
Prostate-Specific Antigen/analysis
;
Registries
;
*Sexual Behavior/drug effects/psychology
;
Testosterone/administration & dosage/*analogs & derivatives
;
Treatment Outcome

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