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
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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
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Middle Aged
;
Neoplasm Recurrence, Local
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Tomography, X-Ray Computed
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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
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Biomarkers, Tumor/*genetics
;
Biopsy
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DNA, Neoplasm/genetics
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Exome
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Gene Frequency
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Genome
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Genotype
;
Humans
;
Lymph Node Excision
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Lymph Nodes/pathology
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Lymphatic Metastasis
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Male
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Middle Aged
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*Models, Genetic
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Neoplasm Invasiveness
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Polymorphism, Single Nucleotide
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Predictive Value of Tests
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Prospective Studies
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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
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Humans
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Male
;
Penile Implantation
;
Phosphodiesterase 5 Inhibitors/therapeutic use
;
Prostatectomy/*adverse effects/rehabilitation
;
Prostatic Neoplasms/*surgery
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Risk Factors
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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
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Genetic Predisposition to Disease
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Goals
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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
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High-Throughput Nucleotide Sequencing/*methods
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Humans
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Sequence Analysis, DNA/methods
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Urologic Neoplasms/*genetics
7.Repeated spurious elevation of serum prostate-specific antigen values solved by chemiluminescence analysis: A possible interference by heterophilic antibodies.
Arturo DOMINGUEZ ; Miquel BAYO ; Jesus MUNOZ-RODRIGUEZ ; Jose Antonio BELLIDO ; Jose Maria ABASCAL-JUNQUERA ; Naim HANNAOUI ; Josep Maria BANUS
Korean Journal of Urology 2015;56(11):785-787
Heterophilic antibodies are human immunoglobulins directed against various animal antigens. They can produce false-positive results in the analysis of different tumor markers, including prostate-specific antigen. This interference can lead to misdiagnosis, unnecessary tests, and overtreatment in some cases. We present herein the case of a 52-year-old man with repeated spurious elevation of prostate-specific antigen, reaching levels of 108.7 ng/mL, that were suspected to be caused by heterophilic antibodies. The interference was solved by changing the analysis technique. Real values of prostate-specific antigen were less than 1 ng/mL.
Antibodies, Heterophile/*immunology
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False Positive Reactions
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Humans
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Luminescence
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Male
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Middle Aged
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Prostate-Specific Antigen/*blood
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Prostatic Neoplasms/blood/*diagnosis/immunology
8.Single port laparoscopic orchidopexy in children using surgical glove port and conventional rigid instruments.
Ben Dhaou MAHDI ; Chtourou RAHMA ; Jallouli MOHAMED ; Zitouni HAYET ; Mhiri RIADH
Korean Journal of Urology 2015;56(11):781-784
PURPOSE: We review the literature and describe our technique for laparoendoscopic single-site orchidopexy using a glove port and rigid instruments. We assessed the feasibility and outcomes of this procedure. MATERIALS AND METHODS: We retrospectively reviewed the case records of all children who had undergone laparoendoscopic single-site orchidopexy by use of a surgical glove port and conventional rigid instruments for a nonpalpable intraabdominal testis between January 2013 and September 2014. RESULTS: Data from a total of 20 patients were collected. The patients' mean age was 18 months. All cases had a nonpalpable unilateral undescended testis. Fourteen patients (70%) had an undescended testis on the right side and six patients (30%) had an undescended testis on the left side. Seventeen patients underwent primary orchidopexy. Three patients underwent single-port laparoscopic Fowler-Stephens orchidopexy for the first and the second stage. Average operating time was 57 minutes (range, 40 to 80 minutes). No patient was lost to follow-up. At follow-up, 2 testes were found to have retracted out of the scrotum and these were successfully dealt with in a second operation. One testis was hypoplastic in the scrotal pouch. There were no signs of umbilical hernia. CONCLUSIONS: Single-port laparoscopic orchidopexy using a glove port and rigid instruments is technically feasible and safe for various nonpalpable intraabdominal testes. However, surgical experience and long-term follow-up are needed to confirm the superiority of this technique.
Cryptorchidism/pathology/*surgery
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Equipment Design
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Feasibility Studies
;
Follow-Up Studies
;
Gloves, Surgical
;
Humans
;
Infant
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Laparoscopy/instrumentation/methods
;
Male
;
Orchiopexy/*instrumentation/methods
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Retrospective Studies
9.Peyronie's disease and low intensity shock wave therapy: Clinical outcomes and patient satisfaction rate in an open-label single arm prospective study in Australian men.
Korean Journal of Urology 2015;56(11):775-780
PURPOSE: To evaluate the efficacy, safety and patient satisfaction outcomes following low intensity extracorporeal shock wave therapy (LiESWT) in men with Peyronie's disease (PD) using a standardised protocol. MATERIALS AND METHODS: In this open-label single arm prospective study, patients with PD were enrolled following informed consent. Patient demographics, change in penile curvature and plaque hardness, International Index of Erectile Function (IIEF)-5 score, and overall satisfaction score (on a 5-point scale) were recorded. Treatment template consists of 3000 shock waves to the Peyronie's plaque over 20 minutes, twice weekly for 6 weeks. RESULTS: The majority of patients have PD history longer than 6 months (mean, 12.8 months; range, 6-28 months). Two thirds of patients have received and failed oral medical therapy. There were improvements in penile curvature (more than 15 degrees in 33% of men), plaque hardness (60% of men) and penile pain (4 out of 6 men) following LiESWT. There was a moderate improvement in IIEF-5 score (>5 points reported in 20% of men). No complication was reported and the majority of patients were satisfied (rated 4 out of 5; 70% of men) and would recommend this therapy to others. CONCLUSIONS: In a carefully selected group of men with PD, LiESWT appears to be safe, has moderate efficacy and is associated with high patient satisfaction rate in the short term.
Adult
;
Age Distribution
;
Aged
;
Feasibility Studies
;
Humans
;
Lithotripsy/adverse effects/*methods
;
Male
;
Middle Aged
;
Pain/prevention & control
;
*Patient Satisfaction
;
Penile Induration/pathology/*surgery
;
Prospective Studies
;
Treatment Outcome
10.A novel one lobe technique of thulium laser enucleation of the prostate: 'All-in-One' technique.
Yeon Joo KIM ; Yoon Hyung LEE ; Joon Beom KWON ; Sung Ryong CHO ; Jae Soo KIM
Korean Journal of Urology 2015;56(11):769-774
PURPOSE: The thulium laser is the most recently introduced technology for the surgical treatment of benign prostatic hyperplasia (BPH). Until recently, most thulium laser enucleation of the prostate (ThuLEP) was performed by use of the three-lobe technique. We introduce a novel one-lobe enucleation technique for ThuLEP called the "All-in-One" technique. We report our initial experiences here. MATERIALS AND METHODS: From June 2013 to May 2014, a total of 47 patients underwent the All-in-One technique of ThuLEP for symptomatic BPH performed by a single surgeon. All patients were assessed with the International Prostate Symptom Score (IPSS), transrectal ultrasonography, serum prostate-specific antigen (PSA), maximal urine flow rate (Qmax), and postvoid residual urine volume (PVR) before and 1 month after surgery. We reassessed IPSS, Qmax, and PVR 3 months after surgery. To assess the efficacy of the All-in-One technique, we checked the PSA reduction ratio, transitional zone volume reduction ratio, and enucleation failure rate. RESULTS: The mean operative time was 82.1+/-33.3 minutes. The mean enucleation time and morcellation time were 52.7+/-21.7 minutes and 8.2+/-7.0 minutes, respectively. The mean resected tissue weight and decrease in hemoglobin were 36.9+/-24.6 g and 0.4+/-0.8 g/dL, respectively. All perioperative parameters showed significant improvement (p<0.05). No major complications were observed. The PSA reduction ratio, transitional zone volume reduction ratio, and enucleation failure rate were 0.81, 0.92, and 4.3%, respectively. CONCLUSIONS: The All-in-One technique of ThuLEP showed efficacy and effectiveness comparable to that of other techniques. We expect that this new technique could reduce the operation time and the bleeding and improve the effectiveness of enucleation.
Aged
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Humans
;
Lasers, Solid-State/adverse effects/*therapeutic use
;
Male
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Middle Aged
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Operative Time
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Prostate-Specific Antigen/blood
;
Prostatic Hyperplasia/pathology/*surgery
;
Retrospective Studies
;
Thulium
;
Transurethral Resection of Prostate/adverse effects/*methods
;
Treatment Outcome

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