فهرست مطالب

Urology Journal - Volume:16 Issue: 2, Mar-Apr 2019

Urology Journal
Volume:16 Issue: 2, Mar-Apr 2019

  • تاریخ انتشار: 1398/02/10
  • تعداد عناوین: 21
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  • Liu Junbo, Li Yugen, Jiang Guo, Huang Jing, Yu Ruichao , Wu Tao * Pages 97-106
    Purpose
    To conduct a comprehensive meta-analysis of existing evidence to quantify and compare the safety and efficacy of PCNL (percutaneous nephrolithotomy), RIRS (retrograde intrarenal surgery) and ESWL (extracorporal shockwave liithotrispy) for lower pole renal stones 10-20mm.
    Materials and Methods
    We conducted a systematic literature search in the EMBASE, MEDLINE, Cochrane databases and Google Scholar to identify relevant studies published in English up to May 2018. Literature reviewed included meta-analyses, and randomized and nonrandomized studies. The subject in the management of PCNL, RIRS and ESWL of studies which included patients with lower pole renal stones 10-20mm. The odd ratio (OR) and mean difference(MD) with its 95% confidence interval (CI) using fixed-or-random-model were calculated to estimate the safety and efficacy of PCNL, RIRS and ESWL for lower pole renal stones 10-20mm. Two reviewers independently assessed the quality of all included studies, and the RevMan 5.3 software was used to analyze the included studies.
    Results
    Three randomized controlled trials and five retrospective case control studies were included, involving a total of 1615 patients in our meta-analysis. Our results suggest that, for lower pole renal stones 10-20mm, PCNL has a great advantage to RIRS(OR=1.95, 95% CI: 1.22-3.12, P = .005, I2 = 39%) and ESWL(OR=0.22, 95% CI: 0.15-0.34, P < .00001, I2 = 0%) in stone-free rate. Comparing PCNL(MD=-24.97, 95% CI: -40.90--9.04, P = .002; I2 = 76%) (MD=-2.43, 95% CI:-4.70--0.17, P = .04, I2 = 99%) and RIRS(MD= -15.39, 95% CI: -25.54--5.25, P = .003, I2 = 99%) (MD=-0.95, 95% CI: -1.29--0.61, P < .00001, I2 = 96%), ESWL owns some advantages in shorter operative time and hospital stay. Both of PCNL (OR=70.21,95%CI:25.01-197.11, P < .00001) (OR=4.01,95%- CI:2.04-7.89, P < .0001) and RIRS (OR=32.31,95%CI:18.39-56.76, P < .00001, I2=0%) (OR=3.06, 95%CI:1.94- 4.84, P < .00001, I2=19%) have some strong points in lower retreatment rate and auxiliary procedure rate comparing ESWL, but no statistical significant difference is found between them(OR=0.46,95% CI:0.15-1.42, P =.18, I2=0%)(OR=0.75,95% CI:0.35-1.59,P =.45). About complication rate, there's no statistical significant difference found in PCNL(OR=1.42, 95%CI:0.91-2.21,P=.12, I2=0%), RIRS (OR=0.74,95%CI:0.51-1.07,P = .11, I2=30%) and ESWL(OR=0.41,95% CI:0.16-1.09, P = .07,I2=70%).
    Conclusion
    Both of PCNL and RIRS offer a longer operative time, the lower retreatment rate and auxiliary procedure rate while PCNL has the longest hospital stay and the highest SFR. However, ESWL is confirmed to have the lowest SFR, the higher retreatment rate and auxiliary procedure rate, but a shorter operative time and the shortest hospital stay. The overall complication rates among the three therapies are comparable.
    Keywords: retrograde intrarenal surgery, percutaneous nephrolithotomy, extracorporeal shock wave lithotripsy, lower pole renal stones, meta-analysis
  • zhaohui He *, Fucai Tang, Zechao Lu, Ye He, Genggeng Wei, Fangling Zhong, Guohua Zeng, Weizhou Wu, Lemin Yan, Zhibiao Li Pages 107-114
    Purpose
    In this meta-analysis, we aimed to compared efficacy and safety of supracostal and infracostal access for percutaneous nephrolithotomy (PCNL).
    Materials and Methods
    We included eligible studies from PubMed, EMBASE, Cochrane Library, Web of Science and China National Knowledge Infrastructure. Literature searching, quality assessment and data extraction were performed by two independent reviewers. Data were analyzed by RevMan software. Binary and continuous variables were calculated as odds ratios (OR) and mean difference (MD).
    Results
    Two prospective comparative studies and seven retrospective observational studies were included in the meta-analysis, which contained 1,024 cases of supracostal access and 1,249 cases of infracostal access for PCNL. The supracostal access resulted in a significant reduced mean hemoglobin (95% CI: 0.26-3.46, MD = 1.86 g/L, P = .02) and a higher incidence of hydrothorax (95% CI: 4.77-22.95: OR = 10.47, P < .00001) compared to infracostal access. However, there no difference between supracostal and infracostal access regarding additional procedures (95% CI: 0.70-1.69, OR = 1.09, P = .71), stone-free rate (95% CI: 0.80-1.72, OR = 1.18, P = .41), length of hospital stay (95% CI: -0.03-0.37, MD = 0.17 day, P = .10), and occurrence of fever (95% CI: 0.95-2.03, OR = 1.39, P = .09) and blood transfusion (95% CI: 0.45-1.70, OR = 0.88, P = .70). No publication bias was identified in the study.
    Conclusion
    Supracostal access was effective, but not as safe as infracostal access PCNL due to a higher risk of reduced hemoglobin and hydrothorax. Therefore, infracostal access should be the preferred safe and effective approach recommended for PCNL. When a supracostal puncture is performed, essential precautions to avoid hemoglobin loss and hydrothorax should be used.
    Keywords: infracostal access, supracostal access, percutaneous nephrolithotomy, Meta-Analysis
  • Fuat Kızılay*, Adnan Simsir, Barıs Altay, Oktay Nazlı, İbrahim Cüreklibatır, Bülent Semerci Pages 115-121
    Purpose
    We aimed to investigate the effect of percutaneous nephrostomy (PCN) implementation on the second ureteroscopy (URS) outcomes after a failed URS.
    Materials and Methods
    The data of four hundred forty-eight patients with an unsuccessful URS history were evaluated. Patients were divided into two groups; patients who underwent PCN before second URS (Group A) and patients who did not (Group B). We compared the stone access rate in the second URS between the two groups according to patient and stone characteristics and operative data. Then, group A was subdivided into two groups according to stone access as; access succeeded (Group A1) and access failed (Group A2). We also compared stone access rates between these two groups in terms of gender, age, body mass index, stone size, side, location, grade of hydronephrosis and PCN duration. All data were available immediately after surgery and obtained from patient files and the outcome assessment was performed during the study period.
    Results
    Stone access rate was higher in group A than group B (143/196 vs 41/252, P = .0018). Mean nephrostomy duration and mean hydronephrosis grade were significantly higher and mean stone size was significantly lower in group A1 than group A2 (18.74 vs 9.62 days, P < .001; grade 3.25 vs 1.21, P = .038; and 7.286 vs 12.631 mm P < .001, respectively).
    Conclusion
    PCN is a favourable intervention after a failed URS and increases the success rate of the second operation with ease of implementation and minimal morbidity.
    Keywords: percutaneous nephrostomy, ureterolithiasis, ureteroscopy, urinary diversion
  • Kehua Jiang, Kun Tang, Haoran Liu, Hua Xu, Zhangqun Ye, Zhiqiang Chen* Pages 122-127
    Purpose
    The relationship of ascorbic acid (AA) supplements and risk of kidney stones among men and women is controversial. This systematic evaluation was performed to obtain comprehensive evidence about the relationship of AA supplements and risk of kidney stones among men and women.
    Material and Methods
    A systematic search of Pubmed, the Cochrane Library, Web of Science, Embase was performed to identify studies that exhibited the relationship of AA supplements and risk of kidney stones among men and women and were published up to Mar 2017. Outcomes of interest included kidney stones incidence and risk factors.
    Results
    Four studies estimating the association between AA supplements and risk of kidney stones were included for meta-analysis. The kidney stones incidence was significantly higher in men than women with AA supplements (OR= 1.62; 95% CI: 1.09 to 2.42; P = 0.02). AA supplements (250-499mg/d, 1000-1499mg/d) was remarkably correlated with the risk of renal stones among men (OR= 1.14, 95% CI: 1.00 to 1.28, P = 0.04; OR= 1.12, 95% CI: 1.11 to 1.13, P < 0.00001; respectively). However, AA supplements (500-999 mg/d, >1500 mg/d) did not correlate with the risk of renal stones among men (OR= 1.20, 95% CI: 0.99 to 1.46, P = 0.06; OR= 1.28, 95% CI: 1.00 to 1.63, P = 0.05; respectively). In addition, AA supplements (250-499mg/d, 500-999mg/d, 1000-1499mg/d, >1500mg/d) did not remarkably correlate with the risk of renal stones among women (OR= 1.00, 95% CI: 0.82 to 1.22, P = 0.98; OR= 1.08, 95% CI: 0.99 to 1.18, P = 0.09; OR= 0.99, 95% CI: 0.90 to 1.08, P = 0.77; OR= 0.99, 95% CI: 0.99 to 1.09, P = 0.88; respectively).
    Conclusion
    AA supplements was remarkably correlated with higher risk for kidney stones incidence in men, but not in women. Further multicenter, prospective and long-term follow-up RCTs are required to verify these findings.
    Keywords: Ascorbic acid, Vitamin C, Kidney stones, Oxalate, meta-analysis
  • Ayhan Verit, Ahmet Urkmez*, Ozgur Haki Yuksel, Fatih Uruc Pages 128-133
    Purpose
    This study aimed to document the surgical and oncologic results of nephron sparing of non-ischemic laparoscopic partial nephrectomy without the step of hilus controlling and even without dissecting to expose the main renal vascularity and directly focusing on mass removal.
    Materials & Methods
    The records of the patients who underwent our modified laparoscopic partial nephrectomy technique were evaluated retrospectively. The patients’ medical records, including tumor complexity calculated via R.E.N.A.L nephrometry scores, operation time, estimated blood loss, blood transfusions, hospital stay, pre- and postoperative serum creatinine levels, complications via the Clavien classification system, pathological status of surgical margin, and follow-up times, were documented.
    Result
    The data of 55 patients with 58 renal units were evaluated. Almost all tumors were in the low complex group (91%), with a mean size of 31.74 ± 7.38 mm (range: 12-46 mm). Mean operation time, estimated blood loss, and transfusion rates were 138.62 ± 38.45 minutes (range: 90-240 min), 242.24 ± 107.12 mL (range: 100-500 mL), and 19%, respectively. The hemoglobin level decreased by a mean of 2.05 ± 0.87 g/dL. Whereas the perioperative complications were Clavien grades I, II, and III (74%, 23%, and 3%, respectively), mean hospital stay and fol low-up time were 4.05 ± 1.97 and 19.67 ± 13.57 (ranges: 2-10 days and 1-44 months), respectively.
    Conclusion
    Present un-controlled results pointed that tumor-focusing nephron-sparing non-ischemic partial lap aroscopic nephrectomy may be preferable for small-sized, low-complex renal masses.
    Keywords: laparoscopic partial nephrectomy, renal hilus dissection, tumor-focusing laparoscopy, zero ischemia
  • Tomasz Winiewski *, Agnieszka yromska, Roman Makarewicz, Ewa ekanowska Pages 134-140
    Purpose
    The novel biomarkers that would identify patients at risk for relapse and metastatic spread are needed. The aim of this study was the evaluation of serum levels of osteopontin (OPN) and tumor endogenous angiogenic factors such as vascular–endothelial growth factor (VEGF), vascular-endothelial growth factor receptor 2 (VEGF R2), endostatin, angiostatin and thrombospondin 1, in prostate cancer (PC) patients.
    Material and Methods
    Blood concentrations of the analyzed parameters were determined in 40 prostate cancer patients eligible for radiotherapy as well as in a control group consisting of 25 volunteers. Commercial ELISA kits were used for the analysis.
    Results
    Significantly higher levels of OPN (101.49 ng/mL vs 59.88 ng/mL; P < .001), endostatin (252.60 ng/ mL vs. 223.55 ng/mL; P = .043), angiostatin (47 ng/mL vs. 13 ng/mL; P = .047), VEGF (262.1 pg/mL vs. 138.0 pg/mL; P = .056) and VEGF R2 (11188.81 pg/mL vs. 9377.50 pg/mL; P = .047) were detected in PC patients compared with the control group. In PC patients we showed a positive correlation between OPN level and TNM clinical stage (R = 0.36; P = .02) and negative correlation between OPN level and hemoglobin concentration (R=- 0.33; P = .04).
    Conclusion
    The study showed higher levels of the angiogenic factors in PC patients compared with the control group and identified OPN as an indicator of the PC clinical stage as well as a decreased hemoglobin level.
    Keywords: osteopontin, angiogenesis factors, prostate cancer
  • Mohammad Taheri, Rezvan Noroozi, Arash Dehghan, Golnaz Atri Roozbahani, Mehrnoosh Musavi, MirDavood Omrani*, Soudeh Ghafouri, Fard Pages 141-144
    Purpose
    Prostate cancer (PCa) and benign prostate hyperplasia (BPH) are two prevalent disorders among men with considerable mortality and morbidity. Several association studies have been conducted in different populations to find genetic loci linked with these disorders. Retinoic acid-receptor-related orphan receptor alpha (RORA) codes for a transcription factor which regulates expression of several cancer-related genes. Besides, RORA has been shown to be down-regulated in PCa tissues and cell lines.
    Materials and Methods
    In the present study we evaluated genotype and allele frequencies of rs11639084 and rs4774388 variants within RORA gene in PCa and BPH patients compared with healthy subjects.
    Result
    The rs11639084 and rs4774388 alleles were not different between PCa and normal groups 95% CI: 0.52- 1.24, OR = 1.04, P = .34; 95% CI: 0.48-1.33, OR = .79, P = .39 respectively. Moreover, we did not detect any significant difference in allele, genotype or haplotype frequencies of these SNPs between the other study groups.
    Conclusion
    The mentioned RORA variants are possibly not involved in the pathogenesis of PCa and BPH. Future studies are needed to assess the associations between other variant within this gene and PCa risk to suggest a putative mechanism for involvement of RORA in PCa.
    Keywords: benign prostatic hyperplasia, prostate cancer, retinoid-related orphan receptor alpha, RORA, singlenucleotide polymorphism
  • Makito Miyake*, Takuya Owari, Mitsuru Tomizawa, Masaru Matsui, Naoko Nishibayashi, Kota Iida, KentaOnishi, Shunta Hori, Yosuke Morizawa, Daisuke Gotoh, Yoshitaka Itami, Yasushi Nakai, Takeshi Inoue, Satoshi Anai, Kazumasa Torimoto, Katsuya Aoki, Nobumichi Tanaka, and Kiyohide Fujimoto Pages 145-151
    Purpose
    To assess the long-term changes in renal function, blood electrolyte levels, and nutritional indices after radical cystectomy and ileal conduit in patients with bladder cancer. Patients and
    Methods
    In 129 patients who underwent radical cystectomy and ileal conduit, we evaluated clinicopathologic features, complications, and the change in the estimated glomerular filtration rate (eGFR) from baseline to 1, 2, 3, 4, 5, and 10 years postoperatively. Two nutritional indices, the geriatric nutritional risk index (GNRI) and prognostic nutrition index (PNI), were calculated with laboratory tests.
    Results
    In the ileal conduit group, a parastromal hernia was observed in 10% of patients, whereas 13% had an ureteroenteric anastomotic stricture, which was associated with greater decline in the eGFR postoperatively. The first 5 year-decline in the eGFR was 1.74 mL/min/1.73 m2/year. The levels of only potassium showed a significant increase at 1 year postoperatively (mean: 4.34 mEq/L) and remained high compared with the baseline (4.14 mEq/L). Evaluation of the nutritional indices demonstrated that the GNRI, and not PNI, showed a significant, transient increase from 1 to 4 years (range: 108−110) postoperatively compared with the baseline (105).
    Conclusion
    The first 5 year-decline was much higher than that among Japanese individuals who participated in an annual health examination program. Further research should be performed to identify an appropriate strategy for selecting the suitable type of urinary diversion and postoperative nutritional interventions to improve the clinical outcome of patients with bladder cancer.
    Keywords: Urinary Bladder Neoplasms, Cystectomy, Urinary Diversion, Kidney Failure, Chronic, Electrolyte, Nutritional Status
  • Mohsen Ayati, Erfan Amini, Reza Shahrokhi Damavand*, Mohammad Reza Nowroozi, Mohammad Soleimani, Ehsan Ranjbar, Ali Nowroozi Pages 152-156
    Purpose
    To evaluate the role of second transurethral resection of bladder tumor (TURBT) in patients with T1 and/ or high-grade bladder tumor regarding tumor size, multiplicity, and presence or absence of muscle in specimens of initial resection.
    Materials and Methods
    A total of 107 patients with either primary T1 or high-grade urothelial bladder cancer underwent second TURBT within 6 weeks after initial surgery and prior to starting intravesical immunotherapy. We assessed the incidence of residual disease and upstaging in second TURBT.
    Results
    Upstaging was noted in 11 (10.3%) patients and residual tumor was evident in 29 (27%) patients. Disease upstaging had a statistically significant association with tumor size, multifocality, and absence of muscle at initial resection in univariate analysis. Presence of residual tumor in second resection also showed significant association with tumor size and absence of muscle at initial resection but not multifocality. Multivariate logistic regression analysis revealed that absence of muscle at initial resection independently predicts disease upstaging during second TURBT (OR = 8.123, 95% CI: 1.478-44.632). Furthermore, both tumor size (OR = 13.573, 95% CI: 3.104-59.359) and absence of muscle (OR = 21.214, 95% CI: 6.062-74.244) were independent predictors of residual disease in second TURBT.
    Conclusion
    We showed that second TURBT in a subset of patients with single, small T1 and/or high-grade tumor who underwent complete initial resection might be of limited value.
    Keywords: residual tumor, second-look surgery, transurethral resection, upstaging, urinary bladder neoplasms
  • Taha Numan Yıkılmaz*, Erdem Öztürk, Fatih Hızlı, Nurullah Hamidi, Halil Basar Pages 157-161
    Purpose
    The complaints of lower urinary tract symptoms in cases with prostate carcinoma (Pca) are associated with coexisting benign prostate hyperplasia or aging bladder. The aim of this study was to investigate and compare the effect of goserelin acetate with leuprolide acetate on total prostate volume (TPV), post voiding residue (PVR), International Prostate Symptom Score (IPSS) and maximum flow rate (Qmax) reduction in cases of advanced Pca.
    Materials and Methods
    The study initially enrolled 71 patients who presented at our clinic for hormonotherapy because of advanced prostate carcinoma between May 2015 and August 2016. A total of 51 patients were found suitable for the study and were divided into two groups as Group 1 who received goserelin acetate (10.8 mg /3 months) and Group 2 who received leuprolide acetate (22.5 mg /3 months). Age, Gleason score, T stage, pre and post treatment Prostate specific antigen (PSA) and testesterone level, TPV, IPSS, PVR, and Qmax values were recorded retrospectively. Changes in parameters were assessed every 3 months.
    Results
    Analysis was made on 51 patients in this study. No statistically significant difference was determined between the two groups in respect of the mean percentage decrease in PSA (98.7% and 98.4%, respectively; P = .9) and testosterone (92.9 % and 96.4 %, respectively; P = .15) from baseline to 6 months but TPV reduced by -20.2 % ± 4.8 and -15.6 % ± 1.04, the median total IPSS score decreased by -34.77 % ± 8.8 and -19.77 % ± 6.1, median Qmax increased by 45.34 % ± 10.16 and 23.21 % ± 6.93, and median PVR decreased by -31.54 % ± 8.4 and -19.23 % ± 5.5, respectively for the two groups (all parameters P < .05)
    Conclusion
    In this study, the improvement observed in voiding parameters with the use of goserelin acetate was better than with leuprolide acetate. The superiority of the goserelin acetate group was determined in particular on the reduction of TPV, PVR and IPSS. Although the PSA follow-up time was short, no significant difference was determined between the groups in the early oncological outcomes.
    Keywords: androgen deprivation therapy, total prostate volume, post voiding residue, voiding symptoms, prostatecarcinoma
  • Nasser Simforoosh*, Mehdi Dadpour, Bahram Mofid Pages 162-167
    Purpose
    To evaluate the feasibility of cytoreductive radical prostatectomy (CRP), lymphadenectomy, and bilateral orchiectomy in patients with advanced prostate cancer with oligo- and poly-metastases. Furthermore, the functional and oncological outcomes of these patients in comparison with the control group that underwent treatment only with systemic therapy (ST group) is investigated in a well-selected, prospective cohort study.
    Material and methods
    A total of 26 patients were enrolled in CRP group and 23 patients in ST group. The patients have been followed (9 to 43 months(median:19.5)) with PSA (prostate specific antigen), whole body bone scan and other necessary imaging and laboratory tests. Functional and oncological outcomes were compared between two groups.
    Results
    Biochemical relapse occurred in 9 patients (34.6%) in CRP group and in 17 patients (73.9%) in ST group (P = 0.01). Whole-body bone scans showed more reduced metastasis volume in CRP group (P = 0.003). There was no voiding dysfunction in 22 patients in CRP group post-operatively (84.6%), while in ST group trans-urethral resection of prostate or permanent Foley catheter was needed in 8 patients (34.7%) and bilateral percutaneous nephrostomy was done in one patient. Six patients in CRP group (23%) and eight patients in ST group (34.7%) died because of prostate cancer and there was no difference between cancer specific survival between the two groups (P = 0.975).
    Conclusion
    Although surgery doesn’t improve cancer specific survival in patients with skeletal metastatic prostate cancer in the short term, but offers better local control, improves biochemical relapse-free survival, might prevent excessive interventions, and reduce bone pain and metastasis.
    Keywords: prostate neoplasms, metastasis, oligo-wide-spread metastasis, cyto-reductive radical prostatectomy, bilateral orchiectomy, functional-oncologic outcome
  • Orkunt Özkaptan*, Muhsin Balaban, Cuneyd Sevinc, Tahir Karadeniz Pages 168-173
    Purpose
    To report on an ascending radical retropubic prostatectomy (RRP) technique and determine whether this technique has better perioperative, oncological and functional outcomes than the standard RRP technique applied in our clinic.
    Materials and Methods
    The perioperative and functional outcomes of the 246 patients that underwent standard RRP (N = 150) or modified RRP (N = 96) were evaluated, retrospectively. In the modified RRP technique the dorsal vascular complex (DVC) was controlled at first. Thereafter, the bladder neck was incised at the prostate-vesical junction. After seminal vesicles and vasa were exposed, posterior dissection was continued until to the apex. Finally, the urethra was divided.
    Results
    The mean volume of estimated blood loss (EBL) was significantly longer in the standard RRP group than in the modified RRP group (610 vs. 210 ml, respectively; P = .001). The mean operative time (OT) was significantly less in the modified RRP group (177 vs. 134 min, respectively; P = .003), as were the transfusion rate TR (P = .041). With regard to the rate of postoperative complications, a statistically significant difference was observed between the two groups (P = .014). Continence rates after 3 and 12 months postoperatively were 98.95% and 98.95 % in the modified RRP group, and 97.33% and 98.66% in the standard RRP group, respectively ( P = .83).
    Conclusion
    We observed that the EBL, TR and OT were significantly lower when we applied the modified RRP technique to patients. This modified technique might be applicable for institutions as an alternative procedure for the standard RRP technique.
    Keywords: Perioperative outcome, Prostate cancer, Surgical technique, Radical prostatectomy
  • Farshid Alizadeh, Iman Omidi, Saeid Haghdani*, Mohammad Hatef Khorrami, Mohammad HosseinIzadpanahi, Mehrdad Mohammadi Sichani Pages 174-179
    Purpose
    In recent years, endoscopic subureteral injection has gained popularity as a therapeutic alternative to open surgery because of its high success rates and low morbidity. We compared the success and complication rates of Polyacrylate polyalcohol copolymer (PPC) and Dextranomer/Hyaluronic acid (Dx/HA) in the endoscopic treatment of VUR. Materials &
    Methods
    We retrospectively reviewed the patients who underwent endoscopic correction of their VUR by subureteric injection of PPC or Dx/HA from Jan 2010 to April 2016. The injection technique was STING (subureteric), distal HIT (intraureteric), and double HIT according the hydrodistention (HD) grade. The success rate, injection technique, injection volume, VUR grade, and obstruction rate were evaluated and compared between two groups.
    Results
    107 renal refluxing units (RRU) with a mean age 55.23 ± 36.58 months and 64 RRU with a mean age 52.13 ± 31.66 months were treated in Dx/HA and PPC groups, respectively. The PPC group showed a more successful outcome in comparison to the Dx/HA group (92.2% versus 75.7% of the RRU with P < .001) at 3 months follow up. The injection technique was not significantly different between two groups. In PPC group the success rate was decreased significantly with increasing reflux grade but this reduction was not statistically significant in Dx/HA group. The injected volume was significantly more in PPC group; in addition, there was statistically significant correlation between injected volume of the bulking agent and obstruction rate. However, the obstruction rate did not establish significant difference between the two groups (P = .83), however it was earlier in Vantris (4 months versus 22 months).
    Conclusion
    Our investigation approved PPC as a more effective material, regardless of other confounding variables such as reflux grade, learning cure, and technique of injection, in endoscopic treatment of VUR. In addition, the other remarkable point is this effectiveness is not accompanied by more post-operation obstruction.
    Keywords: vesicoureteral reflux, Dextranomer, hyaluronic acid, polyacrylate polyalcohol copolymer, endoscopictreatment
  • Dilek Yildiz, Derya Suluhan*, Berna Eren Fidanci, Merve Mert, Turan Tunç, Bülent Altunkaynak Pages 180-185
    Purpose
    This study seeks to investigate the possibility the existence of a difference in terms of start and end dates of toilet training between term and preterm children as well as the possible determining factors.
    Materials and Methods
    This study was conducted as a 5-year retrospective case (children born preterm-(32 to <37 weeks) – and control (children born at term (>37 weeks + 1 day)) study. The data were collected with a form consisted of questions about demographic data (12 questions) and toilet traning features (10 questions) through face-to-face interviews with the mothers. A chi-square test and logistic regression analysis were conducted to examine the data. Odds ratio was used as a measure of the relation between levels of the dependent variable.
    Results
    The study examined a total of 133 children including 59 preterm children and 74 children born at term including 60 (45.1%) boys and 73 (54.9%) girls. The possibility of starting toilet training at or before 24 months was found to be 6.4 times greater in full-term children than preterm children (OR = 6.493). The logistic regression analysis, which aimed at identifying any variables that might affect end date of toilet training, found that despite the tendency to consider preterm birth as a factor prolonging the duration of toilet training, the difference was not found to be statistically significant (P = .07).
    Conclusion
    This study compared full-term and preterm children in terms of start and end dates of toilet training and found that preterm children start toilet training later than full-term children. Based on the results of the study, it is possible to say that preterm birth, gender and birth order affect start date of toilet training. However there is no difference between term and preterm babies on the end date of toilet training.
    Keywords: toilet training, preterm birth, parents
  • Somayeh Khezerloo, Hosein Mahmoudi*, Zohreh Vafadar Pages 186-192
    Purpose
    There was no appropriate instrument for assessing the self-management of Iranian kidney transplant recipients. This study was done to translate the Self-Management Scale for Kidney Transplant Recipients into Persian and evaluate its psychometric properties.
    Material and Methods
    This cross-sectional methodological study was done from October 2016 to March 2017. The psychometric properties of the scale were evaluated in the following four steps: forward-backward translation, face and content validity assessments, construct validity assessment via exploratory factor analysis, and reliability assessment via internal consistency and test-retest techniques.
    Results
    The means of item impact score, content validity ratio, and simplicity, clarity, and relevance content validity indices were 3.94, 0.73, 0.96, 0.93, and 0.98, respectively. Exploratory factor analysis revealed a four-factor structure for the scale which explained 70.75% of the total self-management variance. The four factors of the scale were “self-monitoring”, “self-care behaviors”, “early detecting and coping with abnormalities”, and “drug management”. The Cronbach’s alpha and the test-retest intraclass correlation coefficient of the scale were 0.73 and 0.90, respectively.
    Conclusion
    The Persian Self-Management Scale for Kidney Transplant Recipients has acceptable validity and reliability. It can be used in educational and clinical environments and also in research studies for measuring kidney transplant recipients’ self-management.
    Keywords: self-management, kidney transplant recipient, validity, reliability, instrument development
  • Farzaneh Sharifiaghdas, Nastaran Mahmoudnejad*, Mehdi Honarkar Ramezani, Hamidreza Shemshaki, Fatemeh Ameri Pages 193-197
    Purpose
    To evaluate long term outcomes of autologous pubovaginal fascial sling (AFPVS) as a salvage procedure following different types of failed anti-incontinence surgeries.
    Material and method
    We retrospectively reviewed medical records of patients who had undergone salvage AFPVS after any kind of anti-incontinence surgery from 2005-2015 at our medical center. Patients were contacted by telephone. Revised Urinary Incontinence Scale (RUIS) was used to determine the success rate.
    Result
    A total of 40 patients out of 51 were successfully contacted. Mean patient age was 50.8 ± 9.8 years (range30-75) and mean follow up was 62.6 ± 32.4 months (range12-120). Of 40 patients, 14(35%) had pure SUI and 26(65%) complained of mixed urinary incontinence. A total of 15(37.5%) patients had a failed Burch colposuspention, 5(12.5%) TVT, 8(20%) TOT, 3 (7.5%) AFPVS and five (12.5%) patients had history of failed mini-sling procedure. Four (10%) patients had undergone more than one anti incontinence surgeries. Overall success rate was 65% in our study. New onset urge urinary incontinence was detected in 25% of patient which was negatively associated with satisfaction and recommendation. There was no statistically significant correlation between mixed urinary incontinence, type or number of previous failed surgeries with success however presence of pure SUI had a strong
    Conclusion
    Autologous pubovaginal fascial sling might be considered as a safe and efficacious salvage surgical option following failed midurethral slings, Burch colposuspention and even AFPVS itself. It will provide reasonable long term results with no major complications.
    Keywords: stress urinary incontinence, salvage fascial sling, failed midurethral sling, anti-incontinence surgery, redo sling
  • Ercan Yuvanc*, Mehmet Tolga Dogru, Vedat Simsek, Hüseyin Kandemir, Devrim Tuglu Pages 198-204
    Purpose
    Hypertension (HT) is known to be of the main risk factors for erectile dysfunction (ED). But non-dipping (<%10 drop in the night) of HT is not investigated truly. The aim of this study was to test the hypothesis that the non-dipper hypertensive patients are more prone to develop erectile dysfunction.
    Materials and Methods
    This was a cross-sectional clinical study. 70 HT patients diagnosed by Ambulatory blood pressure monitoring (ABPM) were classified into 3 groups (No ED, mild to moderate and severe) according to their International Index of Erectile Function (IIEF) scores. All three groups were compared for their dipping status by ABPM, heart rate variability (HRV) by holter monitoring.
    Results
    In our study non-dipper hypertensives had statistically more erectile dysfunction (P = 0.004). Also severe ED patients with non-dipping pattern had decreased dipping blood pressure levels then those of ED(-) patients with non-dipping HT (P = .003)
    Conclusion
    Autonomic dysfunction especially sympathetic overactivity is associated with both non dipping pattern of HT and erectile dysfunction as a common pathologic pathway, besides there might be an association between ED and non dipping HT.
    Keywords: Erectile dysfunction, non-dipper hypertension, sympathetic overactivity, heart rate variability, IIEF
  • Sahin Kilic*, Engin Kolukcu, Fikret Erdemir, Ismail Benli, Akgul Arici Pages 205-211
    Purpose
    Benign prostatic hyperplasia (BPH), and erectile dysfunction (ED) are urological diseases which affect more than 50 % of men older than 50 years of age. It has been reported that 5-alpha-reductase inhibitors (5-ARIs) used in clinical studies for the treatment of BPH caused ED in 0.8-15.8% of the patients. The aim of this study is evaluation of the effects of oral finasteride and dutasteride on penile intracavernosal pressures and penile morphology in a rat model.
    Materials and Methods
    Thirty Wistar Albino strain male rats were randomized into control (n = 10), finasteride (n = 10), and dutasteride (n = 10) groups. After 8 weeks of treatment erectile responses were evaluated in all rats measuring intracavernosal pressure (ICP) changes during erectile responses to cavernosal nerve electrical stimulation. Serum hormone levels were studied and all rats underwent prostatectomy and penectomy. All tissue samples were examined histomorphologically and a semiquantitative scoring system was used for cavernosal tissue collagen density grading.
    Results
    Approximately 50% decrease was seen in mean ICPs in the finasteride and dutasteride groups compared to the control group for all voltages (2.5 V, 5 V. 7.5 V). Mean ICPs for 7.5 V were 62.17 ± 30.89 mmHg in control group, 35.27 ± 31.94 in the finasteride, and 36.01 ± 19.20 mmHg in the dutasteride group. But regarding ICPs there was no statistically significant difference between the groups (P > .05). The serum testosterone (T) concentrations were higher in treatment groups (P < .001). Serum dihydrotestosterone (DHT), luteinizing hormone (LH) and follicle stimulating hormone (FSH) concentrations were not significantly different between the groups. As a result of histomorphological studies, a statistically significant increase in cavernosal tissue collagen density, and marked atrophic changes in prostatic epithelial tissues were observed in the treatment groups.
    Conclusion
    Although 5-ARIs cause marked atrophic changes in prostatic epithelial tissues, and prominent collagen deposition in penile cavernosal tissues, no significant effect on penile ICPs was seen in this study. The failure to show a statistically significant difference was attributed to higher standard deviations of ICP values. The penile morphology evaluation results point to a negative effect of 5-ARIs on erectile function.
    Keywords: dutasteride, erectile dysfunction, finasteride, intracavernosal pressure, penile morphology, prostate
  • Serdar Toksöz*, Yalçın Kizilkan Pages 212-215
    Purpose
    To investigate the relationship between the histopathological findings of testis tissue samples and sperm retrieval success of micro-TESE in non-obstructive azoospermia (NOA) patients.
    Method
    Histopathological examination results of the testis tissue samples of 795 NOA patients who underwent micro-TESE operation in our clinic between 2003 and 2014 were included. Histopathological findings were grouped as hypospermatogenesis, incomplete spermatocytic arrest, complete spermatocytic arrest, Sertoli cell only syndrome (SCOS), and fibrosis/atrophy. Chi-square analysis was used to compare the histopathological findings with the sperm retrieval rates of micro-TESE.
    Result
    Sperm was found in 341 (42,9%) patients following micro-TESE compared to 454(57,1%) patients where sperm were not detected (P < 0.001). Sperm retrieval rates of micro TESE were significantly higher in hypospermatogenesis and incomplete maturation arrest groups (93.2% (P < 0.001) and 72.5% (P < 0.001), respectively). Complete maturation arrest, SCOS and fibrosis/atrophy were determined at significantly higher rates in patients (220.2%) with no sperm found compared to patients with sperm (P < 0.001).
    Conclusion
    The findings of this study are consistent with those of previous studies in the literature. Testicular histopathological findings can provide additional data when informing NOA patients about the expected success of further micro-TESE operations.
    Keywords: Non-obstructive azoospermia, micro-TESE, testicular sperm extraction, pathology
  • Ali Aslan*, Yasemin Kaya, Abdullah Çırakoglu, Erdal Benli, Esra Yancar Demir, Mustafa Kerem Çalgın Pages 216-220
    Purpose
    The literature reveals lots of information about the relationship between inflammatory markers and many diseases. In this study, we aimed to determine the relationship between erectile dysfunction and the neutrophil- lymphocyte ratio (NLR), which is a simple and nonspecific inflammatory marker.
    Materials and Methods
    Ninety patients with erectile dysfunction (ED) and ninety-four healthy subjects were included in this study from our internal medicine and urology clinics. As diagnosis criteria, we used the first 5 questions of International Index for Erectile Function. The duration of erectile dysfunction was asked and recorded. Height, weight and waist circumference of patients were measured. We performed total blood count, sedimentation, C-reactive protein, and blood chemistry.
    Results
    There were statistically significant differences between the control [1,038 (0,507-1,92)] and ED [59,5 (52,0-68,0)] groups in terms of NLR (P < .001). According to the multivariate logistic regression analysis, Duration of ED (Cut off: 7,5 month) predicted ED with 78,8% sensitivity and 63,1% specificity (AUC: < ,001, 95% CI 1,030 (1,010-1,050), P = .003). Moreover, NLR (Cut off: 1,574) predicted ED with 81,8% sensitivity and 67,0% specificity (AUC: < 0,001, 95% CI 1,994 (1,139-3,490), P = .016) according to the multivariate logistic regression analysis.
    Conclusion
    It was found that the neutrophil-lymphocyte ratio was higher in patient group than the control group. Also, the neutrophil-lymphocyte ratio (NLR) predicted ED and it might be helpful in diagnosing erectile dysfunction.
    Keywords: erectile dysfunction, neutrophil-lymphocyte ratio, inflammation, diabetes mellitus, coronary arterydisease
  • Seyyed Mohammad Ghahestani¹*, Pooya Hekmati¹, Sara Karimi² Pages 221-223
    In this article we present a two-year-old male patient who had history of Fournier gangrene of scrotum. Extensive perineal and scrotal debridement with suprapubic cystostomy tube insertion had been done for him in the emergency setting. One year later his parents brought him back for scrotal reconstruction. A novel technique by using rotational perineal flap was used. The cosmetic result of one-month and three-month follow up is presented in the article.
    Keywords: scrotoplasty, perineal flap, scrotum, reconstruction