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      Necessity of routine histopathological evaluation subsequent to bladder neck contracture resection

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          Abstract

          Introduction

          Bladder neck contracture is a well-known complication following some urologic surgical procedures. Regardless of the surgical procedure, any specimen resected should be submitted for histopathological evaluation worldwide. However, the charges of histopathological evaluation may bring a heavy burden to the hospital and health care system. Also, waiting the period of the pathological evaluation process can be an anxious time for patients. Hence, we aimed to investigate the necessity of routine histopathological evaluation of bladder neck contracture bladder neck contraction specimens.

          Material and methods

          Patients undergoing bladder neck contraction resection, from 2010 to 2015 were identified. Patient demographics, type of surgery and histopathological diagnosis and cost of histopathological analyses of the specimens were recorded and analyzed.

          Results

          Findings of the histopathologic evaluations of 340 bladder neck specimens were reviewed. Out of these, 294 had underwent transurethral resection of the prostate, 38 open prostatectomy, and 8 radical prostatectomy. Evidence of malignant disease involving prostate cancer was present in only 2 specimens. Both of the specimens had a known preexisting history of malignant disease. The remaining 338 specimens showed chronic inflammation (n = 176), chronic active inflammation (n = 64), adenomatous hyperplasia (n = 78) or cystitis (n = 20).

          Conclusions

          Our results indicate that routine histopathological examination of bladder neck contraction specimens is clinically unnecessary. We recommend that the surgeon should decide the need for histological examination on individual basis, depending on known preoperative risk factors.

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          Most cited references25

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          Is transurethral resection of the prostate still justified?

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            Bladder outlet obstruction: progression from inflammation to fibrosis.

            To investigate the progression of urodynamic changes, as well as histological and biochemical outcomes over a prolonged period of partial bladder outlet obstruction (pBOO) in an animal model with physiologically relevant pBOO. Healthy, adult, female Fischer rats underwent surgical creation of a pBOO for either 2, 4, 8, or 13 weeks and were compared with sham-operated rats. Urodynamic measurements were used to compare bladder volumes and pressure. Tissue was grossly analysed with light microscopy and bladder weights and thicknesses were compared. Reverse transcription-polymerase chain reaction for collagen, transforming growth factor β (TGF-β), connective tissue growth factor (CTGF), hypoxia inducible factor 1α (HIF-1α), and platelet-derived growth factor (PDGF-A) was performed on all samples, as well as immunohistochemistry (IHC) for α-smooth muscle actin (α-SMA). Finally, mass spectrometry was used to quantify the collagen content of the bladders as a measure of fibrosis. After induction of pBOO, all rats remained healthy. Initial urodynamics showed an increase in capacity while maintaining normal pressures, but then deteriorated into small capacity, high-pressure bladders. Haematoxylin and eosin (H&E) staining showed an initial inflammatory response, and this was confirmed with significantly increased mRNA levels of TGF-β, CTGF, HIF-1α, and PDGF. The progression to smooth muscle hypertrophy was evident on H&E and confirmed with increased bladder mass and thickness. IHC for α-SMA showed a progressive increase associated with the elevated bladder pressures. Masson's trichrome and mass spectrometry showed a progressive increase in collagen to 13 weeks. With this model, we have effectively replicated the clinical scenario, with significant pathophysiological changes occurring insidiously in otherwise healthy rats. We believe that our observed changes represent distinct phases of bladder decompensation; with an initial inflammatory response to the stress of the pBOO, smooth muscle hypertrophy to overcome the increased urethral resistance, and eventual decompensation to fibrosis. The time course of the inflammatory markers implies the need for early intervention to prevent this cascade. Novel strategies targeting these observed physiological responses could lead to improved preventative strategies, with respect to biochemical pathways and the time course of their initiation. © 2010 THE AUTHORS. JOURNAL COMPILATION © 2010 BJU INTERNATIONAL.
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              Anastomotic strictures following radical prostatectomy: risk factors and management.

              Stricture of the anastomosis between the bladder neck and membranous urethra after radical prostatectomy can cause significant voiding dysfunction. Of 156 patients undergoing radical prostatectomy for localized prostatic carcinoma 18 had anastomotic stricture for an over-all incidence of 11.5%. The risk factors for anastomotic stricture and the treatment outcome in these patients were analyzed. Excessive intraoperative blood loss, extravasation of urine at the anastomotic site and a prior transurethral prostatic operation significantly contributed to the development of stricture. More than half of the patients did not respond to simple dilation alone. Cold knife incision of the stricture by itself was effective in only 62% of the patients. The remaining patients required periodic dilation to maintain an adequate urine flow. Incision of the stricture with electrocautery resulted in urinary incontinence in all patients.
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                Author and article information

                Journal
                Cent European J Urol
                Cent European J Urol
                CEJU
                Central European Journal of Urology
                Polish Urological Association
                2080-4806
                2080-4873
                30 November 2016
                2016
                : 69
                : 4
                : 353-357
                Affiliations
                [1 ]Selcuk University School of Medicine, Department of Urology, Konya, Turkey
                [2 ]Van Training and Research Hospital, Van, Turkey
                [3 ]Batman State Hospital, Batman, Turkey
                [4 ]Selcuk University School of Medicine, Department of Pathology, Van, Turkey
                Author notes
                Corresponding author Murat Gul, Van Training and Research Hospital, Department of Urology, 65000 Van, Turkey. phone: 905056316913. drgulacademics@ 123456gmail.com
                Article
                00874
                10.5173/ceju.2016.874
                5260453
                28127450
                048ecde1-89d5-4f0e-bd00-1226e410d596
                Copyright by Polish Urological Association

                This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) License, allowing third parties to copy and redistribute the material in any medium or format and to remix, transform, and build upon the material, provided the original work is properly cited and states its license.

                History
                : 18 June 2016
                : 13 October 2016
                : 15 October 2016
                Categories
                Original Paper

                bladder neck contracture,fibrosis,routine histopathology

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