Berkan Resorlu

Ankara Numune Training and Research Hospital, Engüri, Ankara, Turkey

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Publications (116)179.59 Total impact

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    ABSTRACT: This study aimed to evaluate the effect of preoperative imaging techniques on the success and complication rates of ureteroscopy. We performed a retrospective analysis of 736 patients (455 males and 281 females), with a mean age of 45.5±15.2 years (range, 1-88 years), who underwent rigid ureteroscopic procedures for removal of ureteral stones. Patients were divided into 4 groups according to the type of imaging modality used: group I, intravenous urography (n=116); group II, computed tomography (n=381); group III, computed tomography and intravenous urography (n=91), and group IV, ultrasonography and abdominal plain film (n=148). Patients' demographics, stone size and location, prior shock wave lithotripsy, lithotripsy technique, operation time, success rate, and rate of intraoperative complications were compared among the groups. There were no significant differences in success and complication rates among the groups. The stone-free rate after primary ureteroscopy was 87.1% in group I, 88.2% in group II, 96.7% in group III, and 89.9% in group IV (P=0.093). The overall incidence of intraoperative complications was 11.8%. According to the modified Satava classification system, 6.1% of patients had grade 1, 5.1% had grade 2, and 0.54% had grade 3 complications. Intraoperative complications developed in 12.1% of patients in group I, 12.6% of patients in group II, 7.7% of patients in group III, and 12.2% of patients in group IV (P=0.625). Our findings clearly demonstrate that ureteroscopic treatment of ureteral stones can be safely and effectively performed with no use of contrast study imaging, except in doubtful cases of anatomical abnormalities.
    Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas / Sociedade Brasileira de Biofisica ... [et al.] 11/2015; 49(1). DOI:10.1590/1414-431X20154855 · 1.01 Impact Factor
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    ABSTRACT: Purpose: We determine whether the lengths of benign and malignant cores affect cancer detection rates in patients with prostate cancer (PCa). Materials and methods: We evaluated retrospectively 512 patients in our clinic who had undergone 12 core transrectal ultrasound (TRUS)-guided prostate biopsies. The cores were divided into two groups: one with cancer (group 1) and one without cancer (group 2). We also classified Gleason scores as poorly differentiated (scores of 7-10) and moderately differentiated (scores of 5-6); these scores were compared with each other in terms of the core length. The core lengths of the groups were compared using a Student's t-test. A P value of less than .05 was considered to be statistically significant. Results: Of the 512 patients, 76 (15%) had PCa. In total, we evaluated 912 cores of prostate biopsy samples from the 76 patients. Since 92 cores included insufficient tissue and rectal mucosa, we were not able to evaluate them. The remaining 820 cores were divided into two groups. Cancer was detected in 302 cores; 518 cores were benign in nature. The average core length in group 1 was 11.9 ± 4.4 mm, and the average core length in group 2 was 11.1 ± 5.1 mm (P = .015). The core lengths of poorly differentiated and moderately differentiated cancers were similar: 12.3 ± 4.2 mm and 11.7 ± 4.5 mm, respectively (P = .25). Conclusion: Increasing cancer detection rates in cores may be related to core length in TRUS-guided prostate biopsies in PCa patients.&nbsp.
    Urology journal 11/2015; 12(5):2324-2328. · 0.57 Impact Factor
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    ABSTRACT: Objective: To compare the results of transperitoneal laparoscopic nephrectomy in patients with atrophic and hydronephrotic kidneys. Material and methods: Clinical data were collected from 35 patients who had undergone laparoscopic nephrectomies for atrophic or hydronephrotic non-functioning kidneys between January 2010 and March 2014. Comparative analysis was carried out between the two groups examining demographic characteristics, imaging modalities, etiology, operative times, port numbers, conversion to open surgery, complications, pre- and post-operative hemoglobin and creatinine values, transfussion rates and length of hospital stays. Results: Laparoscopic nephrectomy was performed for atrophic kidneys in 20 (57%) patients and for hydronephrotic kidneys in 15 (42%) patients. In the atrophic group, 3 patients (15%) required transfusion because of bleeding but none of the patients required conversion to open surgery. In the hydronephrotic group one patient (6.6%) required transfusion and conversion to open surgery because of bleeding. Both of the groups were similar in terms of postoperative hospital stay but compared to the atrophic kidneys, hydronephrotic ones were associated with a longer total operative times (90.1 min vs. 73.6 min, p=0.03). Any serious complication (except for bleeding) and mortality were not encountered in both groups. Conclusion: Laparoscopic nephrectomy is a safe and effective minimally invasive technique that can be used in atrophic and hydronephrotic non-functioning kidneys.
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    ABSTRACT: Objectives: To research the effect of listening to music during shock wave lithotripsy (SWL) on the patient's pain control, anxiety levels, and satisfaction. Patients and methods: The study comprised 400 patients from three hospitals. Half of patients listened to music during their first SWL session but not during their second session. The other half had no music for the first session but the second session was accompanied by music. During all sessions, with and without music, pulse rates, blood pressure, State-Trait Anxiety Inventory-State Anxiety scores (STAI-SA), Visual Analog Scale (VAS scores for pain), willingness to repeat procedure (0 = never to 4 happily), and patient satisfaction rates (0 = poor to 4 = excellent) were assessed. Results: There was no statistical difference between the two groups in terms of blood pressure and pulse rates. In both groups, the STAI-SA and VAS pain scores were lower in the session when music was listened to (p < 0.001). The patients requested more SWL treatment be completed while listening to music and their satisfaction was greater. Conclusion: Music lowered the anxiety and pain scores of patients during SWL and provided greater satisfaction with treatment. Completing this procedure while the patient listens to music increases patient compliance greatly and reduces analgesic requirements.
    Renal Failure 10/2015; DOI:10.3109/0886022X.2015.1096728 · 0.94 Impact Factor
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    ABSTRACT: Objectives: The objective of this study is to investigate whether patients with androgenetic alopecia were at risk in terms of urinary system stone disease. Patients and methods: Patients with no baldness (Hamilton-Norwood Scala [HNS] stage I) were categorized as Group I, those with hair loss in the frontal region (HNS stages II, III, IIIa, and IVa) as Group II, those with hair loss in the vertex region (HNS stage III-vertex, V) as Group III and those with hair loss in both vertex and frontal regions (HNS stages IV, Va, VI, and VII) as Group IV. Patients in all groups were compared in terms of presence of stone, and the presence of any association between alopecia and urolithiasis, with common etiological risk factors, was investigated. Results: Three hundred and two male patients were included in the study. The presence of urolithiasis was detected in 28.9% of patients in Group I; 26.5% of Group II; 36.9% of Group III; and 44.4% of Group IV (p = 0.085). Among patients aged under 60, urinary stone disease was detected in 30.8% of patients in Group I; 26.4% of Group II; 41.2% of Group III; and 53.8% of Group IV (p = 0.001). In patients aged over 60, urolithiasis was detected in 12.5% of patients in Group I; 26.9% of Group II; 32.2% of Group III; and 37.8% of Group IV (p = 0.371). Conclusions: We determined a significant correlation between vertex pattern and total alopecia with urolithiasis in patients younger than 60 years old.
    Renal Failure 10/2015; DOI:10.3109/0886022X.2015.1096729 · 0.94 Impact Factor
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    ABSTRACT: Introduction: We assessed the effectiveness of ureteroscopy (URS) in proximal ureteral stones performed after shock wave lithotripsy (SWL) failure, and determined outcomes in terms of success rate, complications, and operation time. Methods: We analyzed data of patients with previous unsuccessful SWL (Group I) and the ones that did not have SWL or URS before (Group II) for proximal ureteral stones between December 2007 and August 2014. Group I included 346 patients who underwent complementary URS and Group II 209 patients who underwent primary URS. Success rates, operation time and complications were compared between groups. Results: Success rates of complementary and primary URS were 78.9% and 80.9%, respectively. The difference in success rates was not statistically significant between groups (p = 0.57). The complication rates of complementary URS was 12.1%, and 9.5% in primary URS (p = 0.49). No statistically significant differences were noted in terms of gender, age, stone size and side, or lithotripter type between groups. The mean operation time and need for balloon dilatation were higher in complementary URS group compared to the primary URS group, and the difference was statistically significant (p < 0.05). Conclusions: Complementary URS may be used safely after SWL failure in proximal ureteral stones. Its success rate and morbidities are similar to primary URS, except for longer operation time and an increased need for balloon dilatation.
    Canadian Urological Association journal = Journal de l'Association des urologues du Canada 10/2015; 9(9):E718-E722. DOI:10.5489/cuaj.2745 · 1.92 Impact Factor
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    ABSTRACT: Objective: The objective of this study is to identify the variables that affect young urologists' productivity and academic career choice. Patients and methods: We have conducted an internet-based national survey for urologists randomly sampled from the database of Turkish Urological Association and 110 physicians completed this survey. Participants were asked to answer three-page questionnaire including 37 questions, which takes around 5 min to complete. Questionnaire was consisting of four main sections: 'demography', 'education', 'working conditions' and 'quality of life'. Results: Increased dedicated research time, being interested in an academic career, being Fellow of the European Board of Urology (FEBU), having English proficiency, and greater numbers of manuscript publication during residency were associated with increased productivity after residency (p = 0.001, p = 0.028, p = 0.046, p<0.001 and p<0.001, respectively). The remaining variables including age at marriage, age at having a child, monthly salary, length of residency, having a mentor or role model during residency showed no significant relationship with manuscript publications. Twenty-nine physicians (26.4%) stated that they had once been interested in their residency but were no longer interested in academic urology. Reasons for this loss of academic interest included lack of effective mentor or role model (27.2%), bureaucracy (17%), financial issues (13.6%), mandatory rule to work in public hospitals (18.2%) or military hospitals (9%) and language problems (21.6%). Conclusions: Our data indicate that increased time spent for research, being interested in an academic career, being an FEBU, having English proficiency, and greater publication during residency were associated with increased numbers of publications and academic career choice.
    Urologia 09/2015; DOI:10.5301/uro.5000133
  • A. Tok · A. Tepeler · T. Akman · M.F. Kilinc · M. Tosun · B. Resorlu · A. Armagan ·

    European Urology Supplements 09/2015; 14(4):48. DOI:10.1016/S1569-9056(15)30127-5 · 3.37 Impact Factor
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    ABSTRACT: To investigate the effect of sexual intercourse on spontaneous passage of distal ureteral stones. The patients were randomly divided into 3 groups with random number table envelope method. Patients in group 1 were asked to have sexual intercourse at least 3-4 times a week. Patients in group 2 were administered tamsulosin 0.4 mg/d. Patients in group 3 received standard medical therapy alone and acted as the controls. The expulsion rate was controlled after 2 and 4 weeks. Differences in the expulsion rate between groups were compared with the chi-square test for 3 × 2 tables. P <.05 was considered as statistically significant. The mean stone size was 4.7 ± 0.8 mm in group 1, 5 ± 1 mm group 2, and 4.9 ± 0.8 mm group 3 (P = .4). Two weeks later, 26 of 31 patients (83.9%) in the sexual intercourse group, and 10 of 21 patients (47.6%) in tamsulosin group passed their stones, whereas 8 of 23 patients (34.8%) in the control group passed their stones (P = .001). The mean stone expulsion time was 10 ± 5.8 days in group 1, 16.6 ± 8.5 days in group 2, and 18 ± 5.5 days in group 3 (P = .0001). Our results have indicated that patients who have distal ureteral stones ≤6 mm and a sexual partner may be advised to have sexual intercourse 3-4 times a week to increase the probability of spontaneous passage of the stones. Copyright © 2015 Elsevier Inc. All rights reserved.
    Urology 07/2015; 86(1). DOI:10.1016/j.urology.2015.03.037 · 2.19 Impact Factor
  • E.B. Sancak · B. Reşorlu ·
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    ABSTRACT: Incidence and prevalence of childhood stone disease is increasing significantly in recent years. In parallel with the new discoveries in optical systems and equipment, the surgery of childhood urolithiasis is reshaped. Due to the discovery of smaller endoscopes and increasing experience in the use of flexible ureteroscopy, Retrograde Intrarenal Surgery, which is an alternative treatment for percutaneous nephrolithotomy (PNL) in the large stones than 2 cm and shock wave lithotripsy (SWL) in small stones than 2 cm, as an effective and safe treatment method is increasingly settled in the front row at the choice of the urologist. © 2015, Anatolian Journal of Clinical Investigation. All rights reserved.
    Anatolian Journal of Clinical Investigation 07/2015; 9(3):161-166.
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    ABSTRACT: To compare with histopathological findings the findings of prostate cancer imaging by SPECT method using Tl-201 as a tumor seeking agent. The study comprised 59 patients (age range 51-79 years, mean age 65.3 ± 6.8 years) who were planned to have transrectal ultrasonography (TRUS)-guided biopsies due to suspicion of prostate cancer between April 2011 and September 2011. Early planar, late planar and SPECT images were obtained for all patients. Scintigraphic evaluation was made in relation to uptake presence and patterns in the visual assessment and to Tumor/Background (T/Bg) ratios for both planar and SPECT images in the quantitative assessment. Histopathological findings were compatible with benign etiology in 36 (61%) patients and malign etiology in 23 (39%) patients. Additionally, comparisons were made to evaluate the relationships between uptake patterns,total PSA values and Gleason scores. A statistically significant difference was found between the benign and malignant groups in terms of uptake in planar and SPECT images and T/Bg ratios and PSA values. No statistically significant difference was found between uptake patterns of planar and SPECT images and Gleason scores in the malignant group. SPECT images were superior to planar images in the comparative assessment. Tl-201 SPECT imaging can provide an additional contribution to clinical practice in the diagnosis of prostate cancer and it can be used in selected patients.
    Archivio italiano di urologia, andrologia: organo ufficiale [di] Società italiana di ecografia urologica e nefrologica / Associazione ricerche in urologia 07/2015; 87(2):147-150. DOI:10.4081/aiua.2015.2.147

  • Urology 07/2015; 86(1):206. DOI:10.1016/j.urology.2015.04.025 · 2.19 Impact Factor
  • Izzet Cicekbilek · Berkan Resorlu · Ural Oguz · Cengiz Kara · Ali Unsal ·
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    ABSTRACT: To determine the impact of percutaneous nephrolithotomy (PNL) on global and regional renal function in children. In total, 40 children (41 renal units) undergoing PNL were included in this prospective study. All patients were evaluated using quantitative single-photon emission computed tomography (QSPECT) with technetium-99 m-dimercaptosuccinic acid ((99m)Tc-DMSA) examinations before and 3 months after surgery. The mean age was 9.5 years (range, 3-16), and the mean stone size was 3.4 cm (range, 2-6.5). Of the cases, 39 (95%) were managed as being stone-free after a single session of PNL. After additional treatment procedures, 40 (97.5%) of the cases were managed as being stone-free. Of the 41 renal units, new focal cortical defects on (99m)Tc-DMSA scans were seen in 4 (9.7%) patients. Total relative uptake in the treated kidneys increased from 42.3% to 44.1%. The mean creatinine level before PNL was 1.18 ± 0.45 (0.8-1.6) mg/dL compared with 1.16 (0.7-1.5) mg/dL by the end of the follow-up period (not statistically significantly different, p > 0.05). PNL in children is a safe and feasible method for the maximal clearance of stones. QSPECT of (99m)Tc-DMSA confirmed that renal function is preserved or even improved after percutaneous stone removal.
    Renal Failure 06/2015; 37(7):1-4. DOI:10.3109/0886022X.2015.1056063 · 0.94 Impact Factor
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    ABSTRACT: Metabolic Syndrome (MS) has become a global public health and has been suggested to be a risk factor for Lower Urinary Tract Symptoms (LUTS). Studies evaluating the association between the rate of the MS and LUTS often showed controversial results. The purpose of this study was to reveal the relevance of MS and its components on the frequency and severity of the LUTS that were seen with Benign Prostate Hyperplasia (BPH) in Turkish men or not. In this study, 237 patients referred to urology policlinic with BPH were retrospectively scanned between April 2009 and April 2013. Patients with normal digital rectal examination and the Prostate Specific Antigen (PSA) level of ≤ 4 ng/mL were evaluated using the International Prostate Symptom Score (IPSS) and all the data of the patients' body, including Body Mass Index (BMI), lipid parameters, preprandial blood glucose, and waist circumference. Seventy-four patients (31.3%) with mild IPSS (0-7) was group 1; 97 patients (40.9%) with moderate IPSS (8 - 19) group 2 and 66 patients (27.8%) with severe IPSS (20-35) were defined as group 3. group 4 consisted of 117 healthy controls. Three groups and controls were compared about MS and its components. The diagnosis criteria of The Society of Endocrinology and Metabolism of Turkey were used in MS diagnosis. Also, BMI, lipid parameters, preprandial blood glucose, waist circumference, and blood pressure were used as MS parameters. The average age of patients in group 1 was 69.8 ± 7.2; in group 2, 69.1 ± 7.4; 68.3 ± 7.1 in group 3 and 70.2 ± 7.2 in the control group. Metabolic syndrome was determined at 37 patients (50%) in group 1, 45 patients (46.5%) in group 2, 32 patients (48%) in group 3 and 52 patients (44.4%) in controls and no statistically significant correlation was detected between LUTS and MS in BPH (P = 0.113). In the comparison of the four groups in the point of MS parameters, no significant correlation was detected in the levels of total cholesterol (P = 0.337), fasting glucose (P = 0.291), BMI (P = 0.452), Low Density Lipoprotein (LDL, P = 0.069) and triglyceride (P = 0.307). In our study, the evidence is not enough to support the hypothesis of the relevance between MS and LUTS. Wide-ranging, prospective and multicentric studies are needed to research the relevance between MS and LUTS in BPH.
    05/2015; 7(3). DOI:10.5812/numonthly.7(3)2015.27253
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    ABSTRACT: Double pigtail (JJ) ureteral stents, are the most commonly used method of urinary diversion in the ureteral obstructions. Encrustations may occur as a result of prolonged exposure due to forgetting these stents in the body. Removing these materials might be an annoyance. Forty-four patients from three tertiary referral centres with forgotten JJ stents left in them between the years 2007 and 2014 were included in the study. Stents could not be removed by attempted cystoscopy. As an alternative approach, extracorporeal shock wave lithotripsy (ESWL) was the first choice since it is minimally invasive. The results of that treatment are presented along with the relevant demographic data. JJ stenting for urolithiasis was performed in 36 patients, after open surgery in five patients, and for oncological reasons in three patients. ESWL was applied to stents or to any suspicious region adjacent to the stent. In 29 of 44 patients, the stents were easily removed under cystoscopic procedures while in one patient the fragmented residual stent was spontaneously excreted. In eight patients, ureteroscopy was required; in five patients, percutaneous nephrolithotripsy was required; and in one patient, open surgery was required in order to remove stents. ESWL can be considered as a first-line treatment when a forgotten JJ stent is detected despite all precautions after any kind of urological intervention involving insertion of ureteral stents.
    Urolithiasis 05/2015; 43(4). DOI:10.1007/s00240-015-0782-4 · 1.00 Impact Factor
  • Ali Ünsal · Berkan Reşorlu ·

    04/2015; DOI:10.5350/ENDO2014070310
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    ABSTRACT: To investigate the situations in which ureteral double-J stent should be used after retrograde intrarenal surgery (RIRS). Patients with no ureteral double-J stent after RIRS constituted Group 1, and those with double- J stent after RIRS constituted Group 2. Patients' age and gender, renal stone characteristics (location and dimension), stone-free status, VAS score 8 hours after surgery, post-procedural renal colic attacks, length of hospitalization, requirement for re-hospitalization, time to rehospitalization and secondary procedure requirements were analyzed. RIRS was performed on 162 renal units. Double-J stent was used in 121 (74.6%) of these after RIRS, but not in the other 41 (25.4%). At radiological monitoring at the first month postoperatively after RIRS, complete stone-free status was determined in 122 (75.3%) renal units, while residual stone was present in 40 (24.6%). No significant differences were observed between the groups in terms of duration of fluoroscopy (p = 0.142), operation (p = 0.108) or hospitalization times (p = 0.798). VAS values determined routinely on the evening of surgery were significantly higher in Group 1 than in Group 2 (p = 0.025). Twenty-eight (17.2%) presentations were made to the emergency clinic due to renal colic within 1 month after surgery. Double-J catheter was present in 24 (85.7%) of these patients. Routine double-J stent insertion after RIRS is not essential since it increases costs, morbidity and operation time.
    Archivio italiano di urologia, andrologia: organo ufficiale [di] Società italiana di ecografia urologica e nefrologica / Associazione ricerche in urologia 04/2015; 87(1):72-5. DOI:10.4081/aiua.2015.1.72
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    ABSTRACT: The aims of this study were to investigate the effect of varicocelectomy on DNA fragmentation index and semen parameters in infertile patients before and after surgical repair of varicocele. In this prospective study, 72 men with at least 1-year history of infertility, varicocele and oligospermia were examined. Varicocele sperm samples were classified as normal or pathological according to the 2010 World Health Organization guidelines. The acridine orange test was used to assess the DNA fragmentation index (DFI) preoperatively and postoperatively. DFI decreased significantly after varicocelectomy from 34.5% to 28.2% (P = 0.024). In addition all sperm parameters such as mean sperm count, sperm concentration, progressive motility and sperm morphology significantly increased from 19.5 × 10(6) to 30.7 × 10(6), 5.4 × 10(6)/ml to 14.3 × 10(6)/ml, and 19.9% to 31.2% (P < 0.001) and 2.6% to 3.1% (P = 0.017). The study was limited by the loss to follow-up of some patients and unrecorded pregnancy outcome due to short follow-up. Varicocele causes DNA-damage in spermatozoa. We suggest that varicocelectomy improves sperm parameters and decreases DFI.
    Indian Journal of Urology 04/2015; DOI:10.4103/0970-1591.152811
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    ABSTRACT: Abstract In this study, we aimed to investigate the effects of ureterorenoscopy (URS) on morbidity and renal functions in patients with ureteral stones and nondialysis-requiring renal insufficiency. The data of 3200 patients who had ureterorenoscopic lithotripsy and diagnostic URS were analyzed retrospectively. Age, urea and creatinine levels in the preoperative period and 4 h after surgery, the size of the stone, duration of surgery, percentage change in urea and creatinine levels [(last level-first level/first level) × 100] and postoperative complications were noted. Student's t-test was used for the intergroup analysis of continuous variables. p < 0.05 was considered as statistically significant. There were 90 patients in nondialysis-requiring renal insufficiency group (group 1) and 101 patients in the control group (group 2). Percentage changes of urea and creatinine levels in the renal insufficiency and the control groups were found as -0.3% ± 3.3, 0.67% ± 3.9 and 2.3% ± 23.2, 2.5% ± 31.6 (p = 0.24 and p = 0.56), respectively. In group 1, three (3.3%) patients had postoperative febrile urinary infection, however febrile infections were not seen in any of the patients in group 2 (p = 0.06). Our results indicated that URS might be used safely in ureteral stones of the patients with nondialysis-requiring renal insufficiency.
    Renal Failure 02/2015; 37(5):1-4. DOI:10.3109/0886022X.2015.1015380 · 0.94 Impact Factor
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    Renal Failure 02/2015; 37(4):1-2. DOI:10.3109/0886022X.2015.1012982 · 0.94 Impact Factor

Publication Stats

649 Citations
179.59 Total Impact Points


  • 2009-2015
    • Ankara Numune Training and Research Hospital
      Engüri, Ankara, Turkey
  • 1969-2015
    • Çanakkale Onsekiz Mart Üniversitesi
      • Faculty of Medicine
      Kale-Sultanie, Çanakkale, Turkey
  • 2013-2014
    • Tepecik Teaching and Research Hospital
      Ismir, İzmir, Turkey
  • 2009-2013
    • Ankara Atatürk Training and Research Hospital
      Engüri, Ankara, Turkey
  • 2011
    • T.C. Sağlık Bakanlığı Ankara Eğitim ve Araştırma Hastanesi
      Engüri, Ankara, Turkey
  • 2006-2009
    • Ankara University
      • Department of Urology
      Engüri, Ankara, Turkey