Can the use of antithrombotic drugs be a predictive factor in the early diagnosis of bladder cancer?: A single-center analysis.

Hematuria is the most common symptom of bladder cancer (BCa). It is well-known that the frequency of hematuria increases with the use of antithrombotic drugs (ATDs). We designed our study with the hypothesis that patients using antithrombotic drugs who present with the complaint of hematuria and are subsequently diagnosed with BCa may receive an earlier diagnosis, leading to lower tumor grades and stages. Data of 441 consecutive patients who presented to our urology outpatient clinic with macroscopic hematuria between 2020 and 2023 were retrospectively evaluated. A total of 88 patients (21.4%) with a primary diagnosis of BCa were included in our study. Patients were divided into 2 groups: those using ATDs during the episode of macroscopic hematuria (group 1) and those not using ATDs (group 2). Univariate and multivariate binary logistic regression analysis was performed to identify risk factors that could predict tumor grade. The incidence of multiple tumors (>1) was significantly lower in patients using ATDs (P = .033). The number of patients with tumor size larger than 3 cm was significantly higher in the group not using ATDs (P = .005). The rates of pathological T1 stage in the group using ATDs were significantly lower than those in the nonuser group (P = .038). According to the results of the multivariate model, the effect of pathology stage and ATD use on predicting tumor grade was significant (P = .002 and P < .001, respectively). The probability of having a high-grade tumor in patients with pathology stage T1 was 5.32 times higher than in patients with pathology stage TA. The probability of having a high-grade tumor in patients not using ATDs was 7.73 times higher than in those using ATDs. The effect of pathology stage and ATD use on predicting tumor grade was found to be significant. The probability of having a high-grade tumor was higher in patients not using ATDs compared to those using ATDs. In light of these results, we can state that the use of ATDs is a positive predictive factor in the early diagnosis of BCa, bringing along the chance of early diagnosis and treatment.

Global research productivity and publication trends in vesicoureteral reflux: a bibliometric analysis.

INTRODUCTION: To make a holistic, comprehensive analysis of scientific publications on the subject of vesicoureteral reflux (VUR) between 1980 and 2019 using bibliometric methods, and by determining global research trends, to establish an important resource for future studies. EVIDENCE ACQUISITION: All the scientific documents were accessed which had the key word "vesicoureteral reflux" in the "Title" section in the Web of Science (WoS) database between 1980 and 2019. Using bibliometric methods, articles related to VUR (access date:20.08.2020) were analyzed. VOS viewer software was used to visualize the bibliometric network. EVIDENCE SYNTHESIS: A total of 2549 publications related to VUR were identified in literature, of which 1387 were articles. There was observed to be a generally increasing trend in the number of articles. According to the results of the regression analysis, the number of articles is expected to increase to 54 in 2020, and to 63 by 2029. The 5 most productive countries were seen to be the USA, Turkey, Japan, Italy and Germany. The 5 journals contributing most to the literature were the Journal of Urology (397), Urology (86), Journal of Pediatric Urology (75), Pediatric Nephrology (64) and European Urology (37). CONCLUSIONS: The number of publications on the subject of VUR is expected to continue increasing in the next 10 years. This study, which has provided a detailed and comprehensive analysis of articles related to VUR, can be considered a useful guide for future studies by physicians and researchers.

Efficiency and Safety of The Retrograde Intrarenal Surgery in Younger Compared to Elderly Patients.

OBJECTIVE: To determine the outcomes of retrograde intrarenal surgery (RIRS) and its complications in  both young and elderly patients. STUDY DESIGN: An observational study. PLACE AND DURATION OF STUDY: Departments of Urology, University of Health Sciences, Ankara Research and Training Hospital, Ankara, and Çorum Hitit University, Çorum, Turkey from April 2019 to January 2020. METHODOLOGY: Patients with kidney stones up to 3 cm in maximal diameter on computarised tomography (CT) scan, were divided into two groups according to age (<60 vs. ≥60 years ). RIRS was performed. Demographics, clinical data, and complications were recorded and compared. RESULTS: Mean age of 78 patients was 52.47 ±13.28 years. There were no significant difference in gender, American Society of Anesthesiology (ASA) scores, operation time, number of multiple sessions, success rates of outcome and complication rates between groups. At the end of the first session, stone-free rates were 91.1% vs 87.9% in younger and elderly groups, respectively; while, after the second session, all patients were stone-free in both groups. Fever, hematuria (macroscopic, more than 24 hours), and perirenal hematoma were the observed complications. Postoperative hematocrit levels significantly decreased without any need of transfusion; there were significant differences in the preoperative and postoperative creatinine levels ( p=0.002) in the older group. CONCLUSION: RIRS is a safe and effective method for treating kidney stones up to 3 centimeter diameter in all age groups. Although hemorrhagic events are mostly clinically unremarkable, there is a risk of renal function impairment in older (≥60 years) patients. Preoperative hydration and postoperative close follow-up is important. Key Words: Retrograde intrarenal surgery, Elderly, Effectiveness, Safety.

The effect of atropine in preventing catheter-related pain and discomfort in patients undergoing transurethral resection due to bladder tumor; prospective randomized, controlled study.

BACKGROUND: Catheter-related bladder discomfort (CRBD) has been observed in many patients undergoing a urethral catheterization. CRBD may be so severe that the patients require additional analgesics. Muscarinic receptors are involved in the mechanism of CRBD. The aim of this study is to determine the effects of the antimuscarinic properties of atropine, which is frequently used in current practice on CRBD, by comparing it with sugammadex which has no antimuscarinic effects. METHODS: Sixty patients selected for transurethral resection due to bladder tumors were randomized into 2 groups: an atropine group and a sugammadex group, with no antimuscarinic effect. The patients were given rocuronium (0.6 mg/kg) as a neuromuscular- blocker. In addition to the frequency and severity of CRBD postoperatively at 0, 1, 6, 12, and 24 hours, postoperative numeric rating scale (NRS) scores, and postoperative nausea and vomiting were examined. RESULTS: The incidence of CRBD was significantly lower in the atropine group in all postoperative measurements. The score was found to be significantly lower in the atropine group when NRS measurements were performed at all time periods (P < 0.01). There was no difference between the groups in terms of nausea and vomiting (P > 0.05). CONCLUSIONS: Atropine is a cheap, easy-to-access, safe-to-use drug for reducing CRBD symptoms, without any observed adverse effects. Since it not only reduces CRBD symptoms but also has a positive effect on postoperative pain, it can be used safely to increase patient comfort in patients receiving general anesthesia and a urinary catheter.

Clot Retention: Our Experiences with a Simple New Technique of Evacuation with a Thoracic Catheter.

INTRODUCTION: Clot retention in the urinary bladder is a very common health problem in surgical and nonsurgical cases and clot retention treatment is quite costly. OBJECTIVES: The aim of this retrospective study was to describe an alternative technique for removing tenacious and chronic clots by using a thoracic catheter technique. MATERIALS AND METHODS: Between January 2011 and June 2018, a total of 27 patients of clot retention were treated under local anesthesia with the thoracic catheter technique. RESULTS: Twenty-seven patients with a mean age of 58 years (range 45-70) were included. The etiologies of bladder clots included surgical causes and nonsurgical causes. Of the surgical causes, the most common cause was post-transurethral resection of the prostate (TURP). The nonsurgical causes were upper tract bleeding, drug-induced bleeding, post-traumatic bleeding, and haematochyluria. It was found that the thoracic catheter technique was simple and easily adoptable, with no training required. CONCLUSIONS: Clot retention in the urinary bladder is a very common problem in surgical and nonsurgical cases. Our technique is a simple, safe, fast, and effective option of clot removal from the urinary bladder and it doesn't require any added cost.

A Novel Complication Following Retrograde Intrarenal Surgery: Retroperitoneal Hematoma.

Retrograde intrarenal surgery (RIRS) is an efficient method for kidney stones with low complication rates. Reported here is an unusual complication of this surgery; a retroperitoneal hematoma 8x7.5x5 cm in dimension in a 40-year female, which was completely resolved by conservative treatment. This is the first reported case of retroperitoneal hematoma following RIRS in the literature. Although this technique is safe, feasible and minimally invasive for kidney stones, urologists should be vigilant for such a complication.

All-Seeing-Access Sheath: A Novel Fluoroscopy-Free Placement Technique in Retrograde Intrarenal Surgery.

OBJECTIVE: To evaluate the safety and effectiveness of fluoroscopy-free RIRS (Retrograde intrarenal surgery) method in urolithiasis. STUDY DESIGN: An observational study. PLACE AND DURATION OF STUDY: Department of Urology, Hitit University Corum Training and Research Hospital, Corum, Turkey, from October 2014 and October 2017. METHODOLOGY: Preoperative and postoperative data of 62 cases of renal calculi that underwent fluoroscopy-free RIRS procedure by a single surgeon were prospectively evaluated. All manipulations were performed with a novel technique; under direct vision during the operation. Fluoroscopy device was kept at hand in the operating room, but was not used. RESULTS: The mean age was found as 51.73 ±12.63 (22-82) years. Fortyone patients (66.1%) were males and 21 (33.9%) were females. The mean size of stones were 19.29 ±7.64 (10-40) mm. The stone-free rate was calculated as 42 (67.7%) cases in a single session one month after the surgery, and 15 (24.2%) cases after the second session at the postoperative first month. A total of 57/61 (91.9%) patients were stone-free after the second procedure. No major intraoperative and postoperative complications were observed. As for the minor complications, one patient (1.6%) developed hematuria and four patients (6.5%) had fever. CONCLUSION: The described fluoroscopy-free RIRS procedure can be performed effectively and safely in patients diagnosed with renal calculi, by endourologists.

Can Seasons be an Etiologic Factor for Monosymptomatic Nocturnal Enuresis?

Introduction Primary nocturnal enuresis is the most frequent urinary system complaint among pediatric patients.  Material and Methods Data compiled from 5,500 children, aged between five to 16 years, diagnosed with enuresis during the period from January 2010 to December 2015 were analyzed. The inclusion criteria were having a diagnosis of monosymptomatic nocturnal enuresis, a birth date known for certain, and complete family history taken. A total of 3,547 children met the inclusion criteria and were included in the study. The study was performed by retrospective analyses.  Results Analysis of the results revealed a statistically significant difference among the rates of enuresis with respect to months and seasons (p < 0.001). In our study, we retrospectively reevaluated 3,500 patients for their birth dates and determined a statistically significant difference in the rates of nocturnal enuresis with respect to seasons (p < 0.001).  Conclusion As a result of this study, we determined that monosymptomatic nocturnal enuresis in children is more frequent, particularly in those born during the summer months.

Can platelets be the early biomarkers of erectile dysfunction?

OBJECTIVE: To assess the relationship between erectile dysfunction and platelet count and other platelet indices. METHODS: The case-control study was done at Hitit University Erol Olcok Training and Research Hospital, Turkey, and comprised patient data between January 2014 and September 2016 that was compared with age-matched controls with no history of erectile dysfunction who were randomly chosen from patients attending the urology clinic. Platelet count and other platelet indices were measured in both cases and healthy controls. Erectile status of the patients was evaluated by using International Index of Erectile Function- 5 questionnaire. RESULTS: There were 203 cases and 102 controls. The mean Index scores of the cases was 12.86±4.55 and that of the controls was 24.65±3.25 (p<0.001). Platelet levels were higher in cases than controls (p<0.001). But there was no statistically significant difference between the groups according to mean platelet volume values (p=0.309).. CONCLUSIONS: Platelet values can be used as an early biomarker for erectile dysfunction.

Comparing use of lidocaine periprostatic nerve block and diclofenac suppository alone for patients undergoing transrectal ultrasound guided prostate biopsy.

INTRODUCTION: The objective of this study is to make a comparison between the effectiveness of the diclo- fenac suppository alone and periprostatic local anaesthesia infiltration alone to reduce the pain during a transrectal ultrasound-guided prostate biopsy procedure. MATERIAL AND METHODS: Between January 2014 and December 2015, 100 patients from two centres who were scheduled for transrectal ultrasound guided prostate biopsy (TRUS Bx) were included in the study. Patients were divided into two groups; diclofenac suppository group (Group 1) and Lidocaine group (Group 2). After the prostate biopsy, patients were requested to fill out a visual analogue scale in order to evaluate their pain level during the procedure. RESULTS: Since each group had been examined for VAS score, statistical differences were detected for VAS 0 and VAS 1. VAS 0 score was stated in 38 (71%) patients in Group 2, and in 25 (50%) patients in Group 1 (p = 0.040). VAS 1 score was stated in 9 (17%) patients in group 2 and 19 (38%) patients in Group 1 (p = 0.030). CONCLUSIONS: Although statistical difference was detected at lower VAS scores (0 and 1) in favor of the lidocaine group during transrectal ultrasound guided prostate biopsies, there was not a significant difference in higher (>2) VAS scores; which was made with 100 mg of diclofenac suppository. Therefore, diclofenac suppository can be used as an alternative to periprostatic nerve block made with lidocaine.

Relationship of Low Temperature with Testicular Torsion.

OBJECTIVE: To determine whether there is a correlation between seasonal temperature change and frequency of testicular torsion. STUDY DESIGN: An observational study. PLACE AND DURATION OF STUDY: Departments of Urology, Hitit University Corum Training and Research Hospital, Corum and Ankara Training and Research Hospital, Turkey, from June 2005 to December 2014. METHODOLOGY: Patients who had been diagnosed with testicular torsion and operated in the last 10 years were retrospectively reached through the hospital records. The seasons and the seasonal average temperature occuring in this region were recorded. RESULTS: The median (IQR) age of the patients was 14 (10.8 - 17.0) years. Testicular torsion was on the right side in 18 (60%) and left side in 12 (40%) patients. Twenty-four (80%) patients underwent surgical detorsion and bilateral testicular fixation while 6 (20%) patients underwent orchiectomy. There were 14 (46.6%) cases in the winter months, 7 (23.3%) in the spring months, 4 (13.3%) in the summer months, and 5 (16.6%) in the fall months. Acute testicular torsion in the winter to be statistically significant (p<0.05). CONCLUSION: Acute testicular torsion was seen more commonly in cold season with low temperature.

Comparison of three most frequently used alpha blocker agents in medical expulsive therapy for distal ureteral calculi, result of a retrospective observational study.

PURPOSE: In this study, we compared the effects of three agents frequently used in daily life for medical expulsive therapy. MATERIALS AND METHODS: A total of 143 patients meeting the criteria were included in the study. Patients were divided into three homogeneous drug groups which were tamsulosin group (n:48), alfuzosin group (n:47) and silodosin group (n:48). The time of stone expulsion, analgesic needs, side effects of the medicine and endoscopic intervention needs of the patients were recorded. RESULTS: The rate of stone expulsion was 70.8% (n:34) in tamsulosin group, 70.2% (n:33) in alfuzosin group, and 75% (n:36) in silodosin group. No significant difference was observed among the rates of stone expulsion in three groups, and the rates of stone expulsion were similar (p = 0.778). The duration of stone expulsion was significantly different in the groups (p = 0.012): the time of stone expulsion for tamsulosin was 2.33 ± 0.78 days longer than for Silodosin, indicating a significant difference. There was no significant difference between tamsulosin-alfuzosin and silodosin-alfuzosin (respectively p = 0.147, p = 0.925). CONCLUSIONS: The results of this study showed that medical expulsive therapy by using alpha blocker agents is safe and efficacious. This option must be kept in mind for patients who do not ask for surgery as the first-step treatment for eligible patients.

Efficacy and Reliability of Retrograde Intrarenal Surgery in Treatment of Pediatric Kidney Stones.

Introduction  Surgical treatment of pediatric kidney stones has dramatically changed in recent years due to the miniaturization of surgical instruments and the availability of intracorporeal lithotriptors. Retrograde intrarenal surgery (RIRS) technique is now considered an effective and minimally invasive procedure in renal stones. However, in the pediatric age group, the number of studies on this subject is very limited. The aim of this study was to evaluate the efficacy and safety of the RIRS in the treatment of kidney stones in children. Material and methods  The data of 25 pediatric stone patients who underwent RIRS with the diagnosis of kidney stones were analyzed retrospectively. Demographic characteristics, operative data, and success rates of the patients were recorded. Results  Fourteen (56%) of the cases were male and 11 (46%) were female. The mean age was 10.43 ± 4.26 (3-15) in boys and 10.18 ± 4.92 (4-16) in girls. Eleven stones (46%) were in the left kidney and 14 (56%) in the right kidney. The mean stone size was 10.08 ± 4.33 mm (4-23). Stone localizations were renal pelvis in 15 (60%) cases, upper calyx in four (16%) cases, middle calyx in five (20%) cases, and lower calyx in one (4%) case. The mean operation time was 41.20 ± 6.96 minutes (30-60), the mean duration of scope was 17.40 ± 3.85 seconds (10-30), and the mean hospital stay was 2.32 ± 0.63 days (2-4). Three patients (12%) had undergone percutaneous nephrolithotomy (PCNL), and two (8%) patients underwent shockwave lithotripsy (ESWL) before this surgery. In six (24%) patients, a double J (DJ) catheter was inserted due to stenosis at the lower end of the ureter. Body mass index (BMI) of these patients was below 18. An access sheath was implanted in six (24%) patients in the second operation. In 18 cases, the first operation was performed with a direct flexible renoscope. In all cases, a postoperative DJ catheter was inserted. Postoperative fever was observed in one (4%) patient, and ureteric steinstrasse was observed in one (4%) patient. The stone-free rate was achieved as 17% (68%) after the first operation and 100% after the second RIRS session. Conclusion  RIRS appears to be an effective and reliable method in the pediatric age group. However, there is a need for multicentre studies involving more cases.

The effect of play distraction on anxiety before premedication administration: a randomized trial.

STUDY OBJECTIVE: The majority of children scheduled to undergo surgery experience substantial anxiety in the preoperative holding area before induction of anesthesia. Pharmacological interventions aimed at reducing perioperative anxiety are paradoxically a source of stress for children themselves. Midazolam is frequently used as premedication, and the formula of this drug in Turkey is bitter. We aimed to assess the role of distraction in the form of playing with play dough (Play-Doh) on reducing premedication anxiety in children. DESIGN: Prospective randomized clinical trial. SETTING: Preoperative holding area. PATIENTS: One hundred four healthy children aged 3 to 7 years scheduled to undergo elective surgery were enrolled into the study. INTERVENTIONS: All children routinely receive sedative premedication (oral midazolam) before anesthesia. Children were randomized to 2 groups to receive either play dough (group PD) (n=52) or not (group C) (n=52) before administration of oral premedication. MEASUREMENTS: Children's premedication anxiety was determined by the modified Yale Preoperative Anxiety Scale (mYPAS). MAIN RESULTS: The difference in mYPAS scores between groups at T0 (immediately after entering the preoperative holding area) was not significant (P=.876). Compared with group C, group PD was associated with lower mYPAS scores at T1 and T2 (P<.001). In group PD, mYPAS scores were significantly lower at both T1 and T2 as compared with the scores at T0 (P<.001); they were similar between T1 and T2 (P>.001). CONCLUSION: This study showed that distraction in the form of playing with play dough facilitated administration of oral midazolam in young children.

Comparison of Dilation Methods in Percutaneous Nephrolithotomy: Which One Is More Successful?

OBJECTIVE: Creation of the access tract is an important step in percutaneous nephrolithotomy (PNL). In this study, we compared the efficiency and safety of Amplatz, Alken, and balloon dilation methods in the creation of the access tract. MATERIALS AND METHODS: Data from 487 PNL patients admitted to 517 renal units in 3 centers were analyzed. The Amplatz (280 patients), Alken (142 patients), and balloon (95 patients) dilation methods were compared for their success, duration of the dilation, injury to the collecting system, durations of fluoroscopy and surgery, stone-free and complication rates, pre- and postoperative hematocrit levels, and need for blood transfusion. RESULTS: The dilation methods did not significantly differ with respect to patient demographic data, mean stone area, decrease in hematocrit, need for blood transfusion, unsuccessful tract dilation, injury to the collecting system, stone-free rate, and rate of postoperative complications. The mean fluoroscopy times during Amplatz, Alken, and balloon dilation were 288.52 ± 164.67, 287.34 ± 164.99, and 169.23 ± 21 seconds, respectively. The mean duration of surgery was 96.48 ± 46.07, 94.72 ± 42.25, and 78 ± 25.96 minutes, respectively. The duration of tract creation was 328.67 ± 172.99, 325.14 ± 175.70, and 203.50 ± 32.76 seconds, respectively. The durations of surgery and tract creation were significantly shorter in the balloon dilation group. CONCLUSION: None of the dilation methods was significantly superior in terms of surgical success, efficiency, or safety. Although balloon dilation was advantageous with respect to time parameters, the role of surgical experience should not be ignored.

Relationship between lower urinary tract symptoms and inguinal hernia.

AIM: To determine the relationship between inguinal hernia (and inguinal hernia subtypes) and low urinary tract symptoms (LUTS) due to benign prostate hyperplasia (BPH), that could be more common than we think. METHOD: The study was designed retrospectively and was done in accordance with the principles of the Declaration of Helsinki, including 100 patients aged > 50 years that were divided into 2 groups: patients with BPH (BPH group) and patients with BPH and inguinal hernia (BPH-IH group 2). In addition, the BPH-IH group was subdivided according to 2 inguinal hernia subtypes; patients of BPH-IH subgroup A had direct inguinal hernia (n = 25) and those of BPH-IH subgroup B had indirect inguinal hernia (n = 25). RESULTS: There was no statistical relationship and difference in rates between IPSS scores in both groups (p = 0.659) and there wasn't a significant correlation between IPSS symptom severity and type of hernia, based on chi square analysis (p = 0.104) Conclusion: We were not able to prove our hypothesis that patients with inguinal hernia and BPH would have higher IPSS scores because of voiding dysfunction.

Pediatric extracorporeal shock wave lithotripsy: multi-institutional results.

AIM: To evaluate the efficacy, auxiliary procedures and complications of pediatric extracorporeal shock wave lithotripsy (ESWL) performed with electrohydraulic lithotripters. METHODS: Children with urolithiasis, aged between 0 and 15, were retrospectively evaluated. ESWL was performed by using two different electrohydraulic lithotripters, Elmed Multimed Classic (Elmed Medical Systems, Ankara, Turkey) and E-1000 (EMD Medical Systems, Ankara, Turkey), between January 2008 and December 2012 in four different referral centers in Turkey. RESULTS: 85.5% of patients were stone-free at 3 months. Further ESWL treatment was needed in 33.7% of the cases (one session, n = 55; two sessions, n = 15; three sessions, n = 13). Steinstrasse occurred in 10 patients but 8 of them cleared completely during the follow-up period. Urinary tract infection was detected in 3 (3.9%), fever in 3 (3.9%) and a small subcapsular hematoma in one (1.3%) patient, respectively. When the stones were divided into two groups as those with diameters <10 mm and ≥10 mm, it was found that the stone-free rate was associated with stone diameter, and that the smaller diameters had higher but statistically insignificant stone-free rates (P = 0.196). CONCLUSION: ESWL yields favorable results with low rates of complication and auxiliary procedures in selected pediatric patients.

Incidence of renal carcinoma in non-functioning kidney due to renal pelvic stone disease.

The objective of This study was to report our pathological findings in nephrectomy specimens from patients treated for non-functioning hydronephrotic kidney due to renal pelvic stone disease. A total of 97 patients who underwent nephrectomy for non-functioning hydronephrotic kidneys between January, 2011 and June, 2014 were retrospectively reviewed. A non-functioning kidney was defined as one having paper-thin parenchyma on urinary ultrasound or computed tomography, exhibiting no contrast visualization in the collecting duct system on intravenous urography and having a split renal function of <10% on nuclear renal function studies. Following pathological evaluation, 9 patients were diagnosed with xanthogranulomatous pyelonephritis, 9 with malignant tumors and 79 with chronic pyelonephritis. Of the patients with chronic pyelonephritis, 2 also had renal adenomas. The malignant tumors included 3 transitional cell carcinomas (TCC), 2 squamous cell carcinomas (SCC), 3 renal cell carcinomas (RCC) (1 sarcomatoid, 1 papillary and 1 clear cell RCC), whereas 1 patient had concurrent RCC and TCC. In conclusion, non-functioning kidneys, particularly those with kidney stones, should be managed as possible malignancies, due to the higher incidence of malignant tumors in such patients compared with the normal population.

A narrowing range of bone scan in newly diagnosed prostate cancer patients: A retrospective comparative study.

OBJECTIVES: The objective of the following study is to clarify a suitable group whereby a bone scan could be spared at the initial staging of prostate cancer, we wished to identify the possible relationship between bone metastasis and clinical and pathological parameters including serum total prostate specific antigen (PSA) concentration, alkaline phosphatase (ALP), biopsy Gleason Score (GS), and percentage of pathological cores. MATERIALS AND METHODS: We reviewed the results of 220 bone scintigraphies, which were done between January 1, 2011 and June 30, 2013 in patients with newly diagnosed prostate cancer. These parameters were evaluated together with standard clinicopathological data to determine the prediction ability of the bone scan by univariate and multivariate analyses. RESULTS: Bone metastases were seen in 44 patients of all 220 patients (20%, 95% confidence interval, 17-24%). In univariate analysis, PSA and biopsy GS were useful in predicting the bone scan result, but ALP and percentage of pathological cores was not. In multivariate analysis, the single most useful parameter in predicting the bone scan result was PSA (P < 0.001). CONCLUSIONS: A bone scan seems to be impractical in newly diagnosed prostate cancer patients with serum PSA level <20 ng/ml and GS up to seven and pre-treatment PSA is the best predictor of the need for the bone scan according to results of this study.