Thromboprophylaxis during neoadjuvant chemotherapy for bladder cancer reduces thromboembolism and bleeding.

OBJECTIVES: To assess the risk of venous thromboembolic events (VTEs) and bleeding with or without thromboprophylaxis during neoadjuvant chemotherapy in bladder cancer patients scheduled for radical cystectomy. MATERIALS AND METHODS: We conducted a retrospective cohort study in 4886 patients with non-metastatic bladder cancer undergoing cystectomy across 28 centres in 13 countries between 1990 and 2021. Inverse probability weighting analyses were performed to estimate the effect of thromboprophylaxis on VTE and bleeding. RESULTS: In 147 patients (3%) VTEs were recorded within the first year. These occurred a median (interquartile range [IQR]) of 127 (82-198) days after bladder cancer diagnosis. Bleeding events occurred in 131 patients (3%) within the first year. These occurred a median (IQR) of 101 (83-171) days after cancer diagnosis. In inverse probability weighting analyses, compared to patients without thromboprophylaxis during chemotherapy, patients with thromboprophylaxis had not only a lower risk of VTE (hazard ratio [HR] 0.32, 95% confidence interval [CI] 0.12-0.81; P = 0.016) but also a lower bleeding risk (HR 0.03, 95% CI 0.09-0.12; P <0.0001). The retrospective nature of the study was its main limitation. CONCLUSIONS: In this retrospective analysis, the benefit of thromboprophylaxis during neoadjuvant chemotherapy before cystectomy is in line with data from randomised trials in other malignancies. Our data suggest thromboprophylaxis is protective against VTEs and should be the standard of care during neoadjuvant chemotherapy.

Impact of health and digital health literacy on quality of life following radical prostatectomy for prostate cancer: prospective single-center cohort study.

PURPOSE: The importance of health literacy (HL) and digital health literacy (e-HL) in promoting healthy behavior and informed decision making is becoming increasingly apparent. This study aimed to assess the effects of HL and e-HL on the quality of life (QoL) of men who underwent radical prostatectomy (RP) for localized prostate cancer. MATERIALS AND METHODS: This prospective observational study included 104 patients who underwent RP for localized prostate cancer. HL and e-HL were evaluated using the validated eHealth Literacy Scale and European Health Literacy Survey Questionnaire Short Form before RP. We evaluated patients' physical, psychological, social, and global QoL using the validated EORTC QLQ-C30 8 weeks after RP. The exclusion criterion was any difficulties in language and comprehension. We employed one-way ANOVA to compare continuous variables across groups in univariate analysis and used MANOVA for exploring relationships among multiple continuous variables and groups in the multivariate analysis. RESULTS: Multivariate analyses showed that poorer e-HL and HL were associated with being older (p = 0.019), having less education (p < 0.001), and not having access to the internet (p < 0.001). Logistic regression analysis revealed significant associations between improved e-HL (p = 0.043) and HL (p = 0.023), better global health status, and higher emotional functioning (p = 0.011). However, the symptom scales did not differ significantly between the e-HL and HL groups. CONCLUSION: Our study showed a positive association between self-reported HL/e-HL and QoL, marking the first report on the impact of HL/e-HL on the QoL in men who underwent RP for clinically localized prostate cancer.

Evolving horizons in renal angiomyolipoma: two decades of management strategies and clinical perspectives in a single institutional study.

OBJECTIVE: To assess various management options for renal angiomyolipoma (AML) to guide clinical practice. METHODS: A single center retrospectively reviewed an AML series from 2002 to 2022. The image reports and chart reviews of patients who received two abdominal scans at least 6 months between the first and last scans were assessed. RESULTS: A total of 203 patients with 209 tumors were identified and followed up for a median of 42.6 months. Active surveillance (AS) was the most frequently selected option (70.9% of cases). Interventions were required for 59 AMLs, of which 20 were treated with embolization, 29 with partial nephrectomy, 9 with radical nephrectomy, and 1 with radiofrequency (RF) ablation. The median size of the lesions at intervention was 5 cm. The average growth rate of the lesions was 0.12 cm/year, and there was a significant difference in the average growth rate of lesions ≤4 cm and those >4 cm (0.11 vs. 0.24 cm/year; p = 0.0046). CONCLUSION: This series on AMLs confirms that lesions >4 cm do not require early intervention based on size alone. Appropriately selected cases of renal AML can be managed by AS.KEYWORDS: Angiomyolipoma; active surveillance; embolization; nephrectomy; nephron-sparing surgery.

The cribriform morphology impairs Gleason 7 prostate cancer lesion detection on multiparametric magnetic resonance imaging.

BACKGROUND: Prostate multiparametric magnetic resonance imaging (mpMRI) is a useful tool for the detection of tumor lesions however, some clinically significant lesions are still missed. We determined whether the cribriform pattern has an effect on lesion detection in mpMRI. METHODS: We reviewed the single-institution database of the patients who underwent mpMRI before radical prostatectomy. We included the patients only with the Gleason 7 final pathology of open radical prostatectomy with curative intent between 2016 and 2021. Prostatectomy mappings according to the 16-sector map and cribriform patterns were re-evaluated by two genitourinary pathologists. Prostate mpMRIs were read by two genitourinary radiologists. If the index and nonindex lesions in pathology mapping were matched with mpMRI as Prostate Imaging Reporting and Data System-3 or higher, it was defined as detectable. We compared the detection rates of lesions with and without cribriform morphology. In regression analysis, we also assessed the factors affecting the detectability of prostate cancer lesions. RESULTS: A total of 120 patients and 157 lesions were included in our study. While 52 of 83 cribriform pattern positive lesions could be detected in mpMRI, 59 of 74 cribriform pattern negative lesions could be detected (62.7% vs. 79.7%, respectively, p = 0.019). The lesions were also distributed homogeneously according to diameters and analyzed separately. All lesions between 21 and 30 mm with the negative cribriform pattern were detected on mpMRI. However, only 77.8% of cribriform pattern positive lesions between 21 and 30 mm could be detected (p = 0.034). The Higher D'Amico risk group and the absence of cribriform morphology were independent predictors for the lesion detection on mpMRI. CONCLUSION: The presence of cribriform pattern in Gleason 7 prostate cancer lesions decreases the lesion detection rate of mpMRI.

Comparison of 68Ga-PSMA PET/CT and mp-MRI in regard to local staging for prostate cancer with histopathological results: A retrospective study.

BACKGROUND: Imaging modalities are used to diagnose and clinical grading of clinically significant prostate cancer. In this study, 68Ga-PSMA PET/CT (PSMA) and multiparametric prostate MRI (mp-MRI) were compared in regard to locating intraprostatic tumor and locoregional staging. METHODS: After ethics committee approval, a total of 49 patients with prostate cancer who had mp-MRI and PSMA before radical prostatectomy were included. Preoperative and postoperative PSA, transrectal ultrasound-guided prostate biopsy (TRUS-Bx) ISUP grade, radical prostatectomy ISUP grade, body mass index (BMI), TRUS prostate volume, mp-MRI tumor mapping, PSMAtumor mapping, pathologic tumor mapping, extraprostatic extension (EPE), seminal vesicle invasion (SVI), lymph node invasion (LNI), and bladder neck invasion (BNI)were retrospectively evaluated. Index tumor was located by uroradiologist, nuclear medicine specialist, and uropathologist on a 12-sector prostate pathology map and compared with each other in terms of accuracy and locoregional clinical staging. RESULTS: Mean age of the patients was 66.18 ± 6.67 years and the mean of preoperative PSA results was 21.11 ± 32.56 ng/ml. Nearly half of the patients' (44.9%) pathology was reported as ISUP grade 4 and 5% and 18.4% of patients were surgical margin positive. According to the pathological findings, 362 out of 588 sectors were tumor-positive, 174 out of 362 sectors were tumor-positive in mp-MRI, and 175 out of 362 sectors were tumor-positive in PSMA. Both PSMA and mp-MRI were comparable (p = 0.823) and accurate to detect the location of the intraprostatic index tumor (AUC = 0.66 vs. 0.69 respectively, p = 0.82). The sensitivity and the specificity of the PSMA and mp-MRI for localizing intraprostatic index tumors were 42.5% versus 49.5% and 90.7% versus 88.6% respectively. mp-MRI was more accurate than PSMA in terms of EPE (AUC = 0.8 vs. AUC = 0.57 respectively, p = 0.027) and both methods were comparable in terms of SVI (AUC = 0.75 vs. AUC = 0.75, p = 0.886) and BNI (AUC = 0.51 vs. AUC = 0.59, p = 0.597). PSMA and mp-MRI were comparable in terms of LNI (AUC = 0.76 vs. AUC = 0.64, p = 0.39). CONCLUSION: mp-MRI should be considered for its high accuracy in the diagnosis of EPE, especially before decision-making for nerve-sparing surgery in high-risk patients. Both imaging modalities were accurate for localizing intraprostatic index tumor. PSMA is accurate for detecting LNI.

The association between PI3K, JAK/STAT pathways with the PDL-1 expression in prostate cancer.

Programmed cell death protein-1/programmed death-ligand-1 (PD-1/PDL-1) signalling pathway has gained attention in prostate cancer. The relationship between pSTAT-1, pSTAT-3 expressions and PTEN loss with PDL-1 expression was assessed and the effects of the pathways on prostate cancer prognosis were evaluated. Patients who underwent radical prostatectomy between 2011 and 2017 were included in our study. Prostatectomy materials were evaluated using immunohistochemical staining of pSTAT-1, pSTAT-3, PTEN, and PDL-1. The relationship between PDL-1 and pSTAT-1, pSTAT-3 expressions and PTEN loss was evaluated. Additionally, factors affecting biochemical recurrence-free survival and clinical progression-free survival were analysed. Within100 patients, 9 of 11 patients with PDL-1 expression also had intermediate-high pSTAT-1 staining intensity, and those with PDL-1 expression had higher pSTAT-1 staining intensity than those without (81.9% vs. 56.2%, p = 0.014). In univariate analysis, pSTAT-1, pSTAT-3 and PDL-1 expressions had significant impact on biochemical recurrence-free and clinical progression-free survival. In multivariate analysis, pSTAT-1 staining intensity with radical prostatectomy ISUP grade in terms of biochemical recurrence-free survival and the pSTAT-1 H-score with radical prostatectomy ISUP grade in terms of clinical progression-free survival were independent risk factors. Moderate-high expression of pSTAT-1 was closely associated with PDL-1 expression, and pSTAT-1 was also a predictor of biochemical recurrence and clinical progression.

The efficiency of prostate-specific antigen density measurement using three different methods on the prediction of biochemical recurrence.

BACKGROUND: The aim of this study was to evaluate the efficiency of prostate-specific antigen (PSA) density (PSAD) calculated through prostate volume (PV) obtained via transrectal ultrasound (TRUS) and magnetic resonance imaging (MRI) and actual prostate weight (PW) methods obtained via pathological evaluation on the prediction of biochemical recurrence (BCR) in the follow-ups of patients who had undergone radical prostatectomy (RP). METHODS: A total of 335 clinically localized prostate cancer (PCa) patients who had received open RP between January 2015 and December 2018 were enrolled in the study. Pre and postoperative demographic data, clinical and pathological findings and BCR conditions were recorded. The PSAD was calculated using information obtained through preoperative TRUS examinations, MRI, and collected pathological specimens after RP by dividing the maximum preoperative PSA value and PV/PW. RESULTS: In a mean follow-up duration of 20.2 ± 8.5 months, recurrence was observed in 52 patients (24.4%) and progression was observed in 8 (3.8%) patients. The TRUS-PSAD, MRI-PSAD, and PW-PSAD values were statistically significantly higher in BCR patients compared to non-BCR patients. The International Society of Urologic Pathologists (ISUP) grade 5 and pT3b as a pathological stage were detected as independent variables in the prediction of BCR formation. Actual PW had a high prediction value compared to other PSAD measurements at <40 g prostate weights, but it had a low prediction value in prostates with an actual PW >60 g. CONCLUSIONS: In this study, it was stated that PSAD acquired through different imaging methods does not affect the usability of PSAD in BCR prediction in clinical practice. The ISUP grade 5 and pT3b stage PCa were detected as independent markers in BCR prediction after RP.

Turkish validation and reliability of the symptoms of Lower Urinary Tract Dysfunction Research Network Symptom Index-29 (LURN SI-29) questionnaire in patients with lower urinary tract symptoms.

AIMS: To evaluate the validity and reliability of the Turkish version of the Symptoms of Lower Urinary Tract Dysfunction Research Network Symptom Index-29 (LURN SI-29). METHODS: Patients with lower urinary tract symptoms (LUTS) were included in a single-center study between January and April 2021. Patients' demographics, such as age, sex, and level of education, were recorded. The Turkish version of the LURN SI-29 and the International Prostate Symptom Score (IPSS) were administered to all patients, and the Urogenital Distress Inventory (UDI-6) was additionally administered to female patients. Construct validity was evaluated by confirmatory factor analysis. Concurrent validity was evaluated with correlations to similar measures. Internal consistency (Cronbach's alpha) and split-half reliability analyses were used to establish the scale's reliability. RESULTS: A total of 295 participants, 35.3% females and 64.7% males, were included in the final analysis. The mean age was 56.4 ± 11.7 years. The median total LURN SI-29 scores were 38.0 (26-50) and 26.0 (18-43) for female and male patients, respectively. The LURN SI-29 scale showed a high correlation with IPSS and UDI-6 scales (r = .758, p < .001; r = .774, p < .001, respectively) in concurrent validity analysis. Cronbach's alpha coefficient of the scale and all subscales were greater than 0.70 for both female and male patients. CONCLUSIONS: This measurement tool can potentially be used to evaluate LUTS in Turkish women and men. Further studies should be performed to reveal the clinical usefulness of this scale.

Impact of delay in cystoscopic surveillance on recurrence and progression rates in patients with non-muscle-invasive bladder cancer during the COVID-19 pandemic.

PURPOSE: To evaluate the impact of delay in cystoscopic surveillance on recurrence and progression rates in non-muscle-invasive bladder cancer (NMIBC). MATERIALS AND METHODS: A total of 407 patients from four high-volume centres with NMIBC that applied for follow-up cystoscopy were included in our study prospectively. Patients' demographics and previous tumour characteristics, the presence of tumour in follow-up cystoscopy, the pathology results of the latest transurethral resection of bladder tumour (if tumour was detected) and the delay in cystoscopy time were recorded. Our primary outcomes were tumour recurrences detected by follow-up cystoscopy and progression. Multivariate logistic regression analysis was performed using the possible factors identified with univariate analyses (P values ≤ .2). RESULTS: A total of 105 patients (25.8%) had tumour recurrence in follow-up cystoscopy, and 20 (5.1%) of these patients had disease progression according to grade or stage. In multivariate analysis, the number of recurrences (OR: 1.307, P < .001) and the cystoscopy delay time (62-147 days, OR: 2.424, P = .002; >147 days, OR: 4.883, P < .001) were significant risk factors for tumour recurrence on follow-up cystoscopy; the number of recurrences (OR: 1.255, P = .024) and cystoscopy delay time (>90 days, OR: 6.704, P = .002) were significant risk factors for tumour progression. CONCLUSIONS: This study showed that a 2-5 months of delay in follow-up cystoscopy increases the risk of recurrence by 2.4-fold, and delay in cystoscopy for more than 3 months increases the probability of progression by 6.7-fold. We suggest that cystoscopic surveillance should be done during the COVID-19 pandemic according to the schedule set by relevant guidelines.

Changes in Antimicrobial Resistance of Urinary Tract Infections in Adult Patients over a 5-Year Period.

OBJECTIVES: We aimed to determine the most common bacteria that cause urinary tract infections (UTIs), the rate of antibiotic resistance of these uropathogens, and the changes in resistance rates over the years for adult patients diagnosed with UTIs. METHODS: We retrospectively reviewed urine cultures and antibiotic susceptibility results of patients >17 years of age from our outpatient clinic between 2014 and 2018. The most common uropathogens and their antibiotic resistance rates were identified in different age groups (18-39, 40-59, and ≥60 years) and with respect to gender and date of admission. In addition, the change in antibiotic resistance of Escherichia coli between 2014 and 2018 was also examined. RESULTS: A total of 9,556 positive urine cultures were included. The most common uropathogen was E. coli, and its prevalence was higher in females than males (70.6 vs. 53.4%, respectively). The majority of isolates were from patients ≥60 years of age. E. coli resistance was most pronounced for ampicillin (61.56%), followed by trimeth-oprim-sulfamethoxazole (49.80%), amoxicillin-clavulanic acid (34.69%), and cefazolin (30.72%). E. coli resistance to ampicillin, nitrofurantoin, cefepime, ciprofloxacin, fosfomycin, and amoxicillin-clavulanic acid increased significantly with time (all p = 0.001). For E. coli, resistance to ciprofloxacin, one of the most commonly used antibiotics for UTI, increased from 17 to 43% from 2014 to 2018. CONCLUSION: Most of the uropathogens displayed high resistance to ampicillin, tri-methoprim-sulfamethoxazole, and amoxicillin-clavulanic acid, and were susceptible to meropenem, ertapenem, and imipenem. Fosfomycin and cefepime were useful in the empirical treatment of community-acquired UTIs. A surprisingly high increase was observed in the resistance of E. coli to antimicrobial agents from 2014 to 2018.

Reliability and validity analysis of Turkish version of the Symptoms of Lower Urinary Tract Dysfunction Research Network Symptom Index-10 questionnaire.

INTRODUCTION: To evaluate the validity and reliability of the Turkish version of the Symptoms of Lower Urinary Tract Dysfunction Research Network Symptom Index-10 (LURN SI-10). MATERIALS AND METHODS: In this, single-centre study, patients between 18 and 65 years old, who were suffering from lower urinary tract symptoms (LUTS) without any known urinary tract disease and on no medication, were enrolled. The control group consisted of participants, who were admitted to our clinic suffering from any complaint except LUTS and met all of the other inclusion and exclusion criteria. Participants' demographics such as age, sex, and level of education were recorded. The Turkish version of the LURN SI-10, International Prostate Symptom Score (IPSS) and Overactive Bladder Questionnaire (OAB-V8) were administered to all participants. Construct validity was evaluated by confirmatory factor analysis and concurrent validity was evaluated with correlations to similar measures. Internal consistency (Cronbach's alpha) was used to establish the scale's internal consistency reliability. RESULTS: A total of 164 participants were included in the final analysis. Of those, 57% were male. The individuals were identified as being in the "patient group" (n = 86) and a "control group" (n = 78). The mean age was 48.24 ± 14.30 years. The median total LURN SI-10 scores of patient group and control group were 12.0 (9-18.25) and 4.0 (2.75-6), respectively. The LURN SI-10 questionnaire showed a high correlation with the IPSS and the OAB-V8 questionnaires (r: 0.761; p: 0.001; r: 0.737; p: 0.001, respectively) in concurrent validity analysis. Cronbach's alpha coefficient of the LURN SI-10 was 0.850. CONCLUSIONS: This promising measurement tool can be used to evaluate LUTS in Turkish women and men. Further studies should be conducted to assess the clinical usefulness of this questionnaire.

The Status of Spermatogenesis in Germ Cell Tumor Bearing Testis and Its Association with Metastatic Disease.

INTRODUCTION: We aimed to evaluate the status of spermatogenesis detected by histological examination of non-tumoral testicular tissues in tumor bearing testis and its association with advanced stage disease. PATIENTS AND METHODS: We retrospectively reviewed patients with testicular germ cell tumors (TGCTs) that undergone radical orchiectomy. All non-tumoral areas of the orchiectomy specimens were examined for the status of spermatogenesis. Patients were divided into two groups as localized (stage I) and metastatic (stage II-III) disease and analyzed separately for seminomatous (SGCT) and nonseminomatous germ cell tumors (NSGCT). RESULTS: Four hundred fifty-four patients were included in our final analysis. Of those, 195 patients had SGCT, and 259 patients had NSGCT. Three hundred and six patients had localized disease at the time of diagnosis. Median (Q1-Q3) age was 31 (26 - 38) years and 102 (22.5%) patients had normal spermatogenesis, 177 (39.0%) patients had hypospermatogenesis and 175 (38.5%) patients had no mature spermatozoa. On multivariate logistic regression analysis, embryonal carcinoma >50% (1.944, 95 %CI 1.054-3.585, P = .033) and spermatogenesis status (2.796 95% CI 1.251-6.250, P = .012 for hypospermatogenesis, and 3.907, 95% CI 1.692-9.021, P = .001 for absence of mature spermatozoa) were independently associated with metastatic NSGCT. However, there was not any variables significantly associated with metastatic SGCT on multivariate logistic regression analysis. CONCLUSION: Our study demonstrated that only 22.5% of patients with TGCTs had normal spermatogenesis in tumor bearing testis. Impaired spermatogenesis (hypospermatogenesis or no mature spermatozoa) and predominant embryonal carcinoma are associated with advanced stage NSGCT.

The effect of bioelectric impedance analysis on the success of extracorporeal shock wave lithotripsy.

Bioelectric impedance analysis (BIA) is a non-invasive method that can show the distribution of fatty and lean mass of the body. In this study, we aimed to determine the effect of BIA on extracorporeal shock wave lithotripsy (SWL) success. Our secondary aim was to determine the factors predicting transition from a single SWL session to multiple sessions. Patients who underwent SWL due to kidney stones were prospectively included. Demographics, pre-procedural BIA parameters (fat percentage, obesity degree, muscle mass, total water and metabolic rate), stone parameters, and number of SWL sessions were recorded. Univariate and multivariate regression analyzes were made to determine independent risk factors for success. Then, the successful group was divided into two subgroups according to their SWL session number as one session or multiple sessions and multivariate regression analysis was made to determine independent risk factors. Stone-free status was achieved in 114 (61.2%) of 186 patients. Stone Hounsfield Unit (HU) (OR: 0.998, p = 0.004), stone volume (OR: 0.999, p = 0.023) and fat percentage (OR: 0.933, p = 0.001) were independent risk factors for stone-free status in multivariate analysis. HU value of the stone (OR: 1.003, p = 0.005) and age (OR: 1.032, p = 0.031) were determined as independent risk factors for transition to multiple sessions in the subgroup analysis of the successful group. Fat percentage, stone volume, and stone density were determined as factors affecting success in SWL. Routine use of BIA may be considered to predict success before SWL. The probability of SWL success in a single session decreases as the age and stone's HU value increase.

The Clinical Impact of Physical Activity on the Diagnosis of Prostate Cancer and Postprostatectomy Functional Outcomes in the Elderly.

Objectives: The effect of physical activity on prostate cancer is controversial. We aimed to investigate the effect of physical activity on prostate cancer detection and functional outcomes after radical prostatectomy. Methods: Between 2019 and 2020, 166 patients who underwent prostate biopsy were included. The physical activity scores of patients were evaluated by the Physical Activity Scale for the Elderly (PASE) questionnaire before the procedure. PASE scores were compared between the patients with and without prostate cancer and local and metastatic aggressiveness of cancer. Patients who underwent radical prostatectomy were followed up for 12 months to analyze the effect of physical activity on erectile dysfunction (ED) and urinary incontinence (UI). Results: There was no significant difference between patients with and without prostate cancer in terms of PASE scores (187.7 vs. 195.5, p=0.665). PASE scores were also similar when separated according to D'Amico risk classification and metastatic events. Twenty-seven patients who underwent radical prostatectomy were evaluated in terms of functional outcomes at the first year of surgery. PASE scores of the patients with severe ED were lower than mild-moderate ED, but no statistically significant difference was observed (197.0 vs. 268.5, p=0.267). Patients with persistent UI had a significantly lower PASE score overall than continent patients (128.3 vs. 271.1, p=0.001), and PASE score was the only independent predictor of UI following radical prostatectomy. Conclusion: The effect of physical activity on prostate cancer development or aggressiveness could not be determined. Physical activity was associated with a reduced risk of UI following radical prostatectomy.

Clinicopathologic features and prognostic significance of mixed (Low and high-grade) papillary urothelial carcinoma comparison with low and high-grade papillary urothelial carcinoma.

The World Health Organization/International Society of Urological Pathology (2022 WHO/ISUP) classification categorizes noninvasive carcinomas based on the highest grade observed in a pathology sample. According to this classification, a lesion is classified as mixed-grade (MG) if the highest-grade component comprises less than 5% high-grade (HG) carcinoma [14]. This study included 160 cases of low-grade papillary urothelial carcinoma (LGUC) and 160 cases of HG papillary urothelial carcinoma (HGUC), selected randomly. In addition, 160 consecutive and unselected cases of MG papillary urothelial carcinoma (MGUC) were obtained from all bladder transurethral resection specimens diagnosed with papillary urothelial carcinoma between January 2007 and January 2021. The results of the multivariate analysis showed that histologic grade, invasion of the lamina propria, and the presence of carcinoma in situ at presentation were independent prognostic parameters regarding recurrence-free survival (p = 0.002; hazard ratio (HR) = 1.44, 95% confidence interval (CI) = 1.059-1.956, p = 0.02; and HR = 1.76, 95% CI = 1.159-2.684, p = 0.008, respectively). Histologic grade was the only independent prognostic parameter of disease-specific survival (DSS) (p < 0.001). Comparisons between non-muscle invasive (NMI) MGUC and NMI LGUC, as well as between NMI MGUC and NMI HGUC, revealed statistically significant differences in terms of DSS (HR = 0.07, 95% CI = 0.024-0.252, p < 0.001 and HR = 1.59, 95% CI = 1.023-2.460, p = 0.039, respectively). Our study findings demonstrate statistically significant differences regarding DSS between NMI MGUC and NMI HGUC, as well as between NMI MGUC and NMI LGUC. Therefore, we suggested that considering the presence of less than 5% MGUC as a separate category may be appropriate. However, it is important to validate our results in larger cohorts with longer follow-up periods to establish the clinical significance of MGUC and provide guidance for patient management.

Oncologic outcomes and predictive factors for progression in pT3a renal cell carcinoma.

OBJECTIVES: We aimed to evaluate oncologic outcomes of pT3a renal cell carcinoma (RCC) patients that treated with radical or partial nephrectomy and identify clinical or pathological factors that predict local recurrence or metastasis. METHODS: In this single center, retrospective study, we evaluated medical records of 856 patients who underwent radical or partial nephrectomy for RCC. Patients who had pT3aN0M0 RCC in final pathology and at least 6 months of follow-up included in the study. Patients' demographic characteristics, laboratory parameters, tumor characteristics and oncological outcomes were recorded. Cancer specific and overall survivals were our primary outcomes. Multivariate analysis was performed to identify factors affecting oncologic outcomes. RESULTS: A total of 86 pT3aN0M0 RCC patients were included final analysis of our study. During the mean 60.75 months follow up, 3 patients (3.5%) had experienced local recurrence and 19 patients (22.1%) had experienced metastasis. Total of 24 patients (27.9%) had died during the follow up. In this population 10-year OS was 70.8%, 10-year PFS was 61.3% and 10-year CSS was 78.4%. In multivariate analysis, chronic renal failure (CRF) was an independent worse prognostic factor for overall survival (p=0.03). Besides this sarcomatoid differentiation was an independent prognostic factor for PFS, CSS and OS (p=<0.001). CONCLUSIONS: Our study investigated the predictive factors for worse oncologic outcomes in pT3aN0M0 RCC patients. Although many factors have predictive value in univariate analysis, only sarcomatoid differentiation have independent predictive value for worse CSS, PFS and OS. Besides sarcomatoid differentiation, CRF is an independent prognostic factor for poor OS.

The Role of Preoperative Urinalysis in Predicting Postoperative Infection After Retrograde Intrarenal Surgery in Patients with Sterile Urine Culture.

OBJECTIVE: Postoperative urinary tract infection is the most common complication of retrograde intrarenal surgery, and no consensus has been obtained that would reveal exact reasons yet. It was aimed to determine the possible factors, especially preoperative urinalysis, of postoperative urinary tract infection after retrograde intrarenal surgery. MATERIAL AND METHODS: Patients who underwent retrograde intrarenal surgery in our clinic between 2013 and 2019 were retrospectively screened. Stone size 2 cm and pediatric patients were excluded from the study. The patients were divided into 2 groups as those with and without urinary infections in the early postoperative period. Urine analysis parameters and sterile urine cultures that were taken before the procedure were also analyzed separately. RESULTS: A total of 289 patients meeting the defined criteria were included in the study. There was no statistical difference between the 2 groups in terms of demographics. The number of patients with previous urinary tract infection history (55% vs. 20.5%) and operation time (62.5 ± 16.6 minutes vs. 60 ± 19.4 minutes) were significantly higher in those who had postoperative early urinary tract infection. Among urinalysis, the presence of pyuria, leukocyte count, leukocyte esterase positivity, and nitrite positivity were significantly higher in those who had postoperative early urinary tract infection. In multivariate analysis, urinary tract infection history, operation time, and nitrite positivity were found as independent factors in predicting postoperative early urinary tract infection. CONCLUSION: Previous urinary tract infection history, prolonged operation time, and nitrite positivity in urinalysis were determined as independent risk factors for postoperative urinary tract infection in kidney stones between 1 and 2 cm.

The prognostic impact of tumor necrosis in non-muscle invasive bladder cancer.

OBJECTIVE: We aimed to investigate the impact of tumor necrosis in non-muscle invasive bladder cancer on patients' recurrence and progression rates and survival outcomes. METHODS: This study was conducted retrospectively in a single tertiary center in Turkey. Medical records of patients who underwent transurethral resection of the bladder tumor between January 2016 and January 2021 were reviewed. Patients with pTa and pT1 non-muscle invasive bladder cancer who had undergone complete resection were included in our study. All pathological specimens were reevaluated for the presence of tumor necrosis. RESULTS: A total of 287 patients (244 males and 43 females) were included in our study. Of them, 33 (11.5%) patients had tumor necrosis. The rates of multiple and large tumors (>3 cm) were higher in patients with tumor necrosis (p=0.002 and p<0.001, respectively). Tumor necrosis was associated with higher rates of pT1 diseases (p<0.001), high-grade tumors (p<0.001), and the presence of lymphovascular invasion (p=0.007). The mean recurrence-free survival of patients with tumor necrosis was 42.3 (4.6) months, and the recurrence-free survival of patients without tumor necrosis was 43.5 (1.8) months (p=0.720). The mean progression-free survival of patients with tumor necrosis was 43.1 (4.6) months, and the progression-free survival of patients without tumor necrosis was 58.4 (0.9) months. In log-rank analysis, there was a statistically significant difference between patients with and without tumor necrosis in terms of progression-free survival (p<0.001). CONCLUSION: In this study, we demonstrated that patients with non-muscle invasive bladder cancer and tumor necrosis in pathological specimens have shorter progression-free survival and more adverse pathological features.

Biopsy with Ureterorenoscopy Before Radical Nephroureterectomy is Associated with Increased Intravesical Recurrence in Urothelial Cancer Located in the Kidney.

OBJECTIVE: Diagnostic ureterorenoscopy is used to identify upper tract urothelial cancer before radical nephro ureterectomy, especially for uncertain lesions in imaging modalities or urine cytology. However, diagnostic ureterorenoscopy can potentially cause intravesical tumor spillage and can increase intravesical recurrence rates. We aimed to investigate the impact of diagnostic ureterorenoscopy before radical nephroureterectomy, with and without biopsy, on intravesical recurrence rates of patients with upper tract urothelial cancer. MATERIAL AND METHODS: Patients with localized upper tract urothelial cancer from 8 different tertiary referral centers, who underwent radical nephroureterectomy between 2001 and 2020, were included. Three groups were made: no URS (group 1); diagnostic ureterorenoscopy without biopsy (group 2); and diagnostic ure terorenoscopy with biopsy (group 3). Intravesical recurrence rates and survival outcomes were compared. Univariate and multivariate Cox regression analyses were performed to determine the factors that were asso ciated with intravesical recurrence-free survival. RESULTS: Twenty-two (20.8%), 10 (24.4%), and 23 (39%) patients experienced intravesical recurrence in groups 1, 2, and 3, respectively (P=.037) among 206 patients. The 2-year intravesical recurrence-free sur vival rate was 83.1%, 82.4%, and 69.2%, for groups 1, 2, and 3, respectively (P=.004). Cancer-specific survival and overall survival were comparable (P=.560 and P=.803, respectively). Diagnostic ureterore noscopy+biopsy (hazard ratio: 6.88, 95% CI: 2.41-19.65, P < .001) was the only independent predictor of intravesical recurrence in patients with upper tract urothelial cancer located in the kidney, according to tumor location. CONCLUSION: Diagnostic ureterorenoscopy+biopsy before radical nephroureterectomy significantly increased the rates of intravesical recurrence in tumors located in kidney. This result suggests tumor spillage with this type of biopsy, so further studies with different biopsy options or without biopsy can be designed.

Comparison of Tumor Enucleation and Standard Partial Nephrectomy According to Trifecta Outcomes: A Multicenter Study by the Turkish Academy of Urology, Uro-Oncology Working Group.

INTRODUCTION: We aimed to evaluate the impact of the resection technique (tumor enucleation (TE) or standard partial nephrectomy (SPN)) on trifecta outcomes in patients having undergone partial nephrectomy (PN). MATERIALS AND METHODS: We retrospectively analyzed the clinical and pathologic parameters in patients with localized renal cell carcinoma (pT1-2N0M0) who had undergone PN between January 2001-December 2018 at one of 15 different tertiary referral centers. Multivariable logistic regression analysis was applied to investigate independent predictors of trifecta failure, decreased postoperative renal functions (decreased estimated glomerular filtration rate (eGFR) > 10%), perioperative complications (Clavien-Dindo > 1), and positive surgical margins. RESULTS: A total of 1070 patients with a mean age 56.11 ± 11.88 years were included in our study. PN was performed with TE in 848 (79.25%) and SPN in 222 (20.75%) patients. Trifecta failure rate was 56.2% for TE and 64.4% for SPN (p = 0.028). On multivariable analysis, TE was associated with less trifecta failure (p = 0.025) and eGFR decrease >10% rates (p = 0.024). On the other hand, there was no statistically significant difference between TE and SPN according to positive surgical margins (p = 0.450) and complication > Clavien-Dindo grade 1 (p = 0.888) rates. The only independent predictive factor for complications > Clavien-Dindo 1 was the Charlson comorbidity index (CCI) (p = 0.001). CONCLUSION: TE is associated with less trifecta failure than SPN. This result is mainly due to better preservation of renal function with TE.