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Öğe Can prostate cancer be prevented?(Galenos Yayincilik, 2011) Yuksel, Ilkan; Kaplan, MustafaThe result of epidemiyologic researchs shows us prostat cancer is the second common cancer after lung cancer. Because of high incidence of prostat cancer, morbitities of treatment options and high costs, prevention of prostat cancer become popular. After explaning the mechanisms of prostat carcinogenez, the idea of some agents can be usefull to prevent prostat cancer is suggested. Succesfull results get from the resarch with 5 alfa reductase and estrogen receptor antagonists, but the resarchs with nonsteroidal antiinflamtory drugs, selenium, vitamin D, lycopene can't give us absolute results, so we need more researchs with these agents.Öğe Comparison of prostate cancer detection rates between the Vienna nomogram and the 10-core biopsy protocol(Sage Publications Ltd, 2020) Arda, Ersan; Demir, Zafer; Yuksel, Ilkan; Cek, MeteObjective: To compare the Vienna nomogram and the 10-core prostate biopsy protocol regarding whether there is superiority in prostate cancer detection. Methods: Between January and December 2012, a total of 215 patients applying to our outpatient clinic with lower urinary tract symptoms were evaluated, prospectively. Patients with a prostate-specific antigen level of 2.5-10 ng/mL and/or suspicious digital rectal examination were included in the study. Exclusion criteria were determined as recent pelvic radiotherapy, lower urinary tract surgery, history of acute urinary retention, or indwelling urinary catheter. Biopsies were taken systematically with at least 10 cores considering prostate volume and patient age. According to Vienna nomogram, in patients requiring 6- or 8-core biopsies, tissue sampling was completed to 10 cores (our standard protocol), whereas in patients requiring more than 10 cores additional tissue sampling was performed. Results: After the determination of inclusion/exclusion criteria, 170 patients were enrolled in our study. The median (min-max) age, prostate-specific antigen value, and prostate volume were 65 (48-86) years, 7.6 ng/dL (2.5-10), and 55 cc (17-150), respectively. Prostate cancer was detected in 49 (28.8%) patients with transrectal ultrasound-guided prostate biopsy according to the Vienna nomogram. We found that our standard 10-core biopsy protocol would have diagnosed prostate cancer in 46 (27.1%) patients in the same study group showing no statistically significant difference (p > 0.005). Conclusion: The findings of this study suggest that considering cancer detection rates no statistically significant differences were found between both methods. Further prospective research in this aspect is needed to define the ultimate prostate biopsy protocol.Öğe Contrary effects of coenzyme Q10 and vitamin E after testicular ischemia/reperfusion in a rat model validated with glucose metabolism imaging(Sage Publications Ltd, 2021) Arda, Ersan; Yuksel, Ilkan; Akdere, Hakan; Akdeniz, Esra; Yalta, Tulin D.; Aktoz, Tevfik; Altun, Gulay D.Objective: To evaluate the efficacy of antioxidants in cellular-level post-ischemia/reperfusion injury of the testis and to validate these effects with F-18-fluorodeoxyglucose positron emission tomography. Methods: Fifty-six adult male rats were randomly divided into seven groups-Group 1: sham; Group 2: ischemia/reperfusion only group; Group 3: ischemia was induced and vitamin E (100 mg/kg) was administered intraperitoneally 30 min before reperfusion; Group 4: vitamin E was given intraperitoneally without ischemia/reperfusion; Group 5: ischemia was induced and coenzyme Q10 (10 mg/body weight) was administered intraperitoneally 30 min before reperfusion; Group 6: coenzyme Q10 was administered intraperitoneally without ischemia/reperfusion; Group 7: ischemia was induced and coenzyme Q10 + vitamin E was administered intraperitoneally 30 min before reperfusion. After detorsion, fluorodeoxyglucose was applied to all groups according to the animals' weight and fluorodeoxyglucose positron emission tomography was performed after 1 h. In pursuit of imaging, orchiectomy was performed for histopathological and biochemical evaluations. Results: A significant effect of group on catalase, maximum standardized uptake value, and seminiferous tubule diameters (p < 0.005) was observed. According to this, combining ischemia/reperfusion with vitamin E increased the maximum standardized uptake value significantly higher than in all other groups; in addition, catalase was significantly higher than in Groups 4-6. Histopathological outcomes revealed that sham had significantly larger seminiferous tubule diameter than Groups 2-4. Also, ischemia/reperfusion was the only group which had significantly smaller seminiferous tubule diameters than Groups 6 and 7. Conclusion: In contrast to vitamin E, coenzyme Q10 provided remarkable regression of oxidative stress-induced enzymes and revealed consistent effects on histopathological outcomes, which were validated with fluorodeoxyglucose positron emission tomography imaging.Öğe Correlation of Ultrasonically Determined Bladder Wall Thickness and Prostatic Calcification With the Urinary, Psychosocial Dysfunction, Organ Specific, Infection and Neurological/Systemic Symptoms, and Tenderness Scoring System(Elsevier Science Inc, 2019) Arda, Ersan; Cakiroglu, Basri; Akdeniz, Esra; Akdere, Hakan; Yuksel, Ilkan; Senturk, Aykut B.OBJECTIVE To evaluate ultrasonically determined bladder wall thickness (BWT) and prostatic calcification presence, in men with chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS), and to correlate the findings with patient characteristics and the urinary, psychosocial dysfunction, organ specific, infection and neurological/systemic symptoms, and tenderness (UPOINT) classification system. MATERIAL AND METHODS Between January 2008 and December 2017, data of 1294 patients diagnosed with chronic prostatitis, in a single urology clinic, meeting a number of selective inclusion/exclusion criteria, were retrospectively analyzed. Patients, compliant to fill out all requested questionnaires, between the ages of 21-65 years were included to the study. Exclusion criteria were noncompliance of filling out required questionnaires, acute and/or chronic bacterial prostatitis, history of genitourinary cancer, history of recent prostate surgery, and diagnosis of neurological diseases affecting the bladder. RESULTS The median patient age and UPOINT subdomain was determined as 37 (IQR = 13, range 21-65) and 2 (IQR = 1, range 0-5), respectively. Median values for BWT, National Institute of Health-Chronic Prostatitis Symptom Index (NIH-CPSI), and International Index of Erectile Function were 3 (IQR = 1, range 2-6, 7), 4 (IQR = 6, range 1-23), and 25 (IQR = 10, range 1-30), respectively. The presence of calcification demonstrated a significant association with total NIH-CPSI score and BWT, whereas its relation with age and total UPOINT score was insignificant. However in contrast to calcification status, BWT >= 3.3 showed a strong and statistically significant relation to all the described measurements. CONCLUSION Measurement of BWT can be used as an accessible and objective method for the diagnose of CP/CPPS according to UPOINT scoring system. (C) 2018 Elsevier Inc.Öğe Does Mild Hydronephrosis Induced by Full-Bladder Improve Outcomes in Patients Undergoing Shock Wave Lithotripsy for Lower Calyceal Stones?: A Prospective Randomized Study(Urol & Nephrol Res Ctr-Unrc, 2018) Hazar, Ismet Aydin; Cakiroglu, Basri; Sinanoglu, Orhun; Akgun, Feride Sinem; Arda, Ersan; Yuksel, Ilkan; Akdere, HakanPurpose: To compare the outcomes, sessions and shock wave numbers in patients undergoing standard procedure shock wave lithotripsy (SWL) and patients undergoing SWL with mild hydronephrosis induced by full-bladder following oral hydration before SWL procedure for lower calyceal stones. Materials and Methods: Between January 2014-January 2016 a total of 371 patients who underwent SWL, for lower pole calyceal stones 2 cm, were included into the study. 127 patients were treated in the supine position (Group A), 123 in the prone position (Group B) and 121 in the prone position with full bladder and mild hydronephrosis checked by ultrasound before procedure (Group C). There were 286 men and 85 women with a mean SD age of 36 11 years Results: The mean (SD) stone sizes within the group A, group B and group C were 11 mm (+/- 3 mm), 12 mm (+/- 4.1 mm) and 11 mm ( +/- 3.8 mm) respectively. No significant difference was found in age (P =.18) and stone size between 3 groups (P =.07). The median interquartile range (IQR) number of shocks within the group A, group B and group C were 7600 (3855), 6500 (4300) and 6700 (4915) respectively. Significant difference was found in number of shock waves among 3 groups (P <.01). The difference between groups according to stone expulsion rate was found significant in all sessions (P =.01). Conclusion: The present study suggests that mild hydronephrotic status induced by full-bladder before SWL can lower cost and patient discomfort by decrease in number of sessions and increase in stone clearance.Öğe Medical Expulsive Therapy for Distal Ureteral Stones: Tamsulosin Versus Silodosin in the Turkish Population(Springernature, 2017) Arda, Ersan; Cakiroglu, Basri; Yuksel, Ilkan; Akdeniz, Esra; Cetin, GizemIntroduction Our aim was to contribute a study that includes a higher patient population to the limited number of studies comparing tamsulosin and silodosin in the treatment of distal ureteral stones. Material and methods Patients who presented with renal colic to the urology emergency clinic and were diagnosed with ureteral stones and followed-up with conservative treatment between January 2010 and January 2016 were retrospectively screened. According to the inclusion-exclusion criteria, the patients were divided into three groups. Group 1: 150 patients followed with watchful waiting (WW), Group 2: 156 patients who received 0.4 mg of tamsulosin daily, and Group 3: 159 patients who received 8 mg of silodosin daily. The side effects of the used drugs, duration of stone reduction, and expulsion rates were evaluated and compared separately. Results A total of 465 patients were included in the study. No statistically significant difference was found in terms of age, gender, and stone size among the groups. The patient characteristics and results are shown in Table 1. The differences in stone expulsion rate between the groups in the first week were calculated using the Chi-square test and found to be non-significant (p = 0.155); whereas, the stone expulsion rates between Group 1 versus Group 2 and Group 1 versus Group 3 were found to be significantly different after the second and third week. Conclusion According to our results, no statistically significant superiority between tamsulosin and silodosin was shown in the treatment of distal ureteral stones in the Turkish population.Öğe Metachronous Testicular Cancer After Orchiectomy: A Rare Case(Springernature, 2017) Arda, Ersan; Cakiroglu, Basri; Cetin, Gizem; Yuksel, IlkanTesticular cancer represents approximately 1% of all cancers diagnosed in males. The prevalence of bilateral testicular germ cell tumor cases varies from 1% to 5%. Intratubular germ cell neoplasia (ITGCN) is a precursor for almost all testicular germ cell tumors (TGCT) and is one of the highest risks of developing contralateral testicular cancer. The radical orchiectomy is still preferred for the treatment of testicular cancer. However, in some cases like solitary testis, bilateral cancer or if the tumor size is under 30% percent of the testicular extent, organ-sparing surgery can be an option. There are just a few published reports of metachronous contralateral testicular cancer, developed after orchiectomy with the histopathology of the intratubular germ cell neoplasia.Öğe Predictive and prognostic impact of preoperative complete blood count based systemic inflammatory markers in testicular cancer(Brazilian Soc Urol, 2020) Arda, Ersan; Arikan, Gurkan; Akdere, Hakan; Akgul, Murat; Yuksel, IlkanPurpose: To determine the utility of preoperative complete blood count (CBC) based systemic inflammatory markers in the prediction of testicular cancer and its prognosis. Material and Methods: Between 2008-2017 the data of all testicular tumor patients undergoing radical orchiectomy were retrospectively analyzed. Patient baseseline characteristics (age, tumor stage, tumor markers, etc.) and results of routine preoperative blood tests including mean platelet volume (MPV), red cell distribution width (RDW), lymphocyte ratio (LR) and neutrophil ratio (NR) were retrieved. In addition, neutrophil to lymphocyte ratio (NLR) was calculated. Results: Mean age of the tumor and control group was 36.0 +/- 15 and 30.50 +/- 11 years, respectively. Mean RDW, NR and NLR were significantly higher in the tumor group with p values<0.001; whereas LR and MPV were significantly higher in the control group (p<0.001). Receiver Operating Characteristic (ROC) analyses of LR, NR, RDW, MPV, and NLR are shown in Table-3. The cut off values for RDW and NR were found as 13,7 (Area under the curve (AUC): 0.687, sensitivity = 42.2%, specificity = 84.8%) and 55.3 (AUC:0.693, sensitivity 72.2%, specificity 62%), respectively. Area under the curve for NLR in tumor group was 0.711, with a threshold value of 1.78 and sensitivity=81.8% and specificity= 55.4% (AUC:0.711/sig<0.001) that together with RDW exhibited the best differential diagnosis potential which could be used as an adjuvant tool in the prediction of testicular tumor and its prognosis. Conclusion: Several systemic inflammatory markers, which are obtained by routinely performed cost-effective blood tests, could demonstrate incremental predictive and prognostic information adjuvant to preoperativly achieved testiscular tumor markers.Öğe Urothelial tumor development at the ureteral stump 25 years after simple nephrectomy(Aves, 2011) Inci, Osman; Aktoz, Tevfik; Yuksel, IlkanA malignant tumor developing from a residual ureteric stump after a nephrectomy for benign disease is extremely rare. We report a 78-year-old woman with a high-grade invasive ureteral carcinoma that arose in the ureteral stump 25 years after an ipsilateral nephrectomy for benign pathology. Urologists should keep this pathology in mind in the differential diagnosis of hematuria.Öğe Valuation of Neutrophil/Lymphocyte Ratio in Renal Cell Carcinoma Grading and Progression(Springernature, 2018) Arda, Ersan; Yuksel, Ilkan; Cakiroglu, Basri; Akdeniz, Esra; Cilesiz, NusretIntroduction We investigated the association of the neutrophil/lymphocyte ratio (NLR) with tumor size and Fuhrman grade in nonmetastatic renal cell carcinoma (RCC) cases. Materials and methods Data of nonmetastatic RCC (T1-4N0M0) cases, operated between 2010 and 2016, were retrospectively reviewed and 103 patients were included in the study. The patients were divided into two groups according to tumor diameter (Group 1 T < 4 cm, Group 2 T >= 4 cm) and into three groups according to Fuhrman grade. Twenty-eight patients with a tumor diameter of 4 cm or less in Group 1 and 75 patients with a tumor diameter greater than 4 cm in Group 2 were compared. In both grouping systems, the NLR, mean platelet volume (MPV), red cell distribution width (RDW), white blood cell (WBC), red blood cell (RBC), platelet (PLT), lymphocyte, and neutrophil values and age were compared. Results There were no differences in age, MPV, RDW, neutrophil, WBC, RBC, PLT counts in groups of tumor diameter (Group 1 T < 4 cm, Group 2 T >= 4 cm). However, the lymphocyte amount was significantly higher in cases with a tumor diameter less than 4 cm compared to the cases with a tumor diameter greater than 4 cm (p = 0.015). It was observed that the NLR had a tendency to increase in patients with tumor size greater than 4 cm compared to patients with tumor size smaller than 4 cm (p = 0.029). There were no differences in age, MPV, RDW, lymphocyte, neutrophil, WBC, RBC, PLT counts, and the NLR in different Fuhrman-graded cases. Conclusions There is a linear relation between the tumor size and the NLR in nonmetastatic RCC cases. Therefore, the NLR is a cheap parameter that can be used to show the tumor size, and thus it can be used to get an idea about the prognosis of the patient.
