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    Efficacy and safety of Hyadex for treatment of vesicoureteral reflux: a multicenter experience
    (Sage Publications Ltd, 2023) Oguz, Fatih; Yildiz, Turan; Gecit, Ilhan; Gungor, Hasan; Ciftci, Halil; Aksoy, Yilmaz; Yagmur, Ismail
    ObjectiveThis study was performed to evaluate the efficacy and safety of dextranomer/cross-linked hyaluronic acid (Hyadex) in patients with a clinical diagnosis of vesicoureteral reflux (VUR).MethodsIn this cross-sectional multicenter observational study, Hyadex was used in four different centers for the endoscopic treatment of VUR from 2020 to 2022. The study involved 74 patients (93 renal units) who were diagnosed with VUR according to voiding cystourethrography (VCUG) findings and were considered suitable for subureteric endoscopic treatment. The follow-up time (control VCUG time) was 3 months.ResultsIn the VCUG evaluation, grade I VUR was found in 13 renal units, grade II in 23 renal units, grade III in 42 renal units, and grade IV in 12 renal units. The success rates of Hyadex treatment according to the degree of VUR were as follows: 84.6% for grade I, 82.6% for grade II, 71.4% for grade III, and 66.0% for grade IV. No major complications were observed.ConclusionEndoscopic subureteric Hyadex injection had high success rates in appropriately selected patients with VUR and may be used as the first-line treatment for children with VUR.
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    Evaluating the concordance between Vesical Imaging Reporting and Data System scores and bladder tumor histopathology
    (Elsevier Singapore Pte Ltd, 2025) Gungor, Hasan; Camtosun, Ahmet; Topcu, Ibrahim; Karaca, Leyla
    Objective: This study aimed to assess the local staging of bladder tumors in patients utilizing preoperative multiparametric MRI (mpMRI) and to demonstrate the clinical efficacy of this method through a comparative analysis with corresponding histopathological findings. Methods: Between November 2020 and April 2022, 63 patients with a planned cystoscopy and a preliminary or previous diagnosis of bladder tumor were included. All participants underwent mpMRI, and Vesical Imaging Reporting and Data System (VI-RADS) criteria were applied to assess the recorded images. Subsequently, obtained biopsies were histopathologically examined and compared with radiological findings. Results: Of the 63 participants, 60 were male, and three were female. Categorizing tumors with a VI-RADS score of >3 as muscle invasive, 84% were radiologically classified as having an invasive bladder tumor. However, histopathological results indicated invasive bladder tumors in 52% of cases. Sensitivity of the VI-RADS score was 100%; specificity was 23%; the negative predictive value was 100%; and the positive predictive value was 62%. Conclusion: The scoring system obtained through mpMRI, VI-RADS, proves to be a successful method, particularly in determining the absence of muscle invasion in bladder cancer. Its efficacy in detecting muscle invasion in bladder tumors could be further enhanced with additional studies, suggesting potential for increased diagnostic efficiency through ongoing research. The VI-RADS could enhance the selection of patients eligible for accurate diagnosis and treatment.