1.Interobserver Agreement of Filling Cystometry Parameters in Children With Neurogenic Lower Urinary Tract Dysfunction
Yunus Emre GENC ; Faruk ARSLAN ; Onur Can OZKAN ; Osman AKYUZ ; Raziye ERGUN ; Ahmet Ozgur GUCTAS ; Selcuk YUCEL ; Kamil CAM ; Tufan TARCAN ; Cagri Akin SEKERCI
International Neurourology Journal 2026;30(2):155-162
Purpose:
Urodynamic studies (UDS) are the gold standard for evaluating pediatric lower urinary tract dysfunction (LUTD). However, previous studies have shown that the interpretation of cystometric findings may vary according to the observer’s level of experience and the criteria used for evaluation. This study aimed to investigate interobserver differences in the reporting of cystometric parameters in children with spina bifida.
Methods:
Patients who underwent UDS between 2020 and 2025 for neurogenic LUTD secondary to spina bifida were retrospectively reviewed. Studies that did not reach 80% agreement for compliance with good urodynamic practice standards were excluded. Detrusor overactivity (DOA) and bladder compliance were independently evaluated by 4 pediatric urologists and 3 urologists experienced in neuro-urology. Agreement was assessed using Fleiss’ kappa test.
Results:
A total of 100 children, including 53 females and 47 males, were included; the median age was 6.5 (range, 1–17) years. Agreement of at least 80% was reached in 86% of evaluations for DOA and 82% of evaluations for compliance. Based on the ratings of 7 observers, the Fleiss’ kappa value was 0.60 for DOA, indicating moderate agreement, and 0.46 for bladder compliance, indicating weak agreement.
Conclusions
This study demonstrated substantial interobserver variation in the interpretation of UDS, even among experienced centers and observers. Because UDS are essential for the diagnosis, treatment, and follow-up of patients with spina bifida, standardized criteria are needed to improve interobserver consistency in this patient group. Multicenter prospective studies involving observers with varying levels of experience are warranted to improve concordance in UDS reporting.
2.Recent neuroanatomical studies on the neurovascular bundle of the prostate and cavernosal nerves: clinical reflections on radical prostatectomy.
Selcuk YUCEL ; Tibet ERDOGRU ; Mehmet BAYKARA
Asian Journal of Andrology 2005;7(4):339-349
The neurovascular bundle of the prostate and cavernosal nerves have been used to describe the same structure ever since the publication of the first studies on the neuroanatomy of the lower urogenital tract of men, studies that were prompted by postoperative complications arising from radical prostatectomy. In urological surgery every effort is made to preserve or restore the neurovascular bundle of the prostate to avoid erectile dysfunction (ED). However, the postoperative potency rates are yet to be satisfactory despite all advancements in radical prostatectomy technique. As the technology associated with urological surgery develops and topographical studies on neuroanatomy are cultivated, new observations seriously challenge the classical teachings on the topography of the neurovascular bundle of the prostate and the cavernosal nerves. The present review revisits the classical and most recent data on the topographical anatomy of the neurovascular bundle of the prostate and cavernosal nerves and their implications on radical prostatectomy techniques.
Erectile Dysfunction
;
prevention & control
;
Humans
;
Hypogastric Plexus
;
anatomy & histology
;
Male
;
Postoperative Complications
;
prevention & control
;
Prostate
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innervation
;
surgery
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Prostatectomy
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methods
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Prostatic Neoplasms
;
surgery
3.Gene expression profiles and effects of transforming growth factor-beta1 intervention in Peyronie's disease.
Zhong WANG ; Jing-fang LIU ; Zhi-heng ZHOU ; Yuan-fang ZHANG ; Wen-jian WANG ; Peng ZHANG ; Yucel SELCUK ; Lin GUITING ; Ching-shwun LIN
Chinese Journal of Surgery 2004;42(3):182-186
OBJECTIVETo demonstrate molecular insight into the pathology of Peyronie's disease (PD). A preliminary profile of differential gene expression between the PD plaque and control tunica albuginea was obtained with DNA microarrays. Also, to investigate the effect of intervention in PD cells, transforming growth factor-beta1 (TGF-beta1) was recruited to treat PD cell lines.
METHODSThree PD plaques and control tunica albugineas were constructed and studied. cDNA probes were prepared from RNA isolated from those cells and hybridized with the Clontech Atlas 3.6 Array. Relative changes of greater than 2.0 defined up-regulation and down-regulation, respectively. The expression of selected individual gene MCP-1 and the effect of TGF-beta1 on MCP-1 were analyzed by reverse transcriptase-polymerase chain reaction.
RESULTSSome up-regulated genes in the PD plaque detected by the Clontech assay were screened, one of them was monocyte chemotactic protein. One involved the pathogenesis of PD as a downstream gene and responded to the TGF-beta1 treatment but not CTGF. The results were also confirmed by TR-PCR in all the types of cell.
CONCLUSIONSThe cell lines from plaque tissue and normal tunica from men with PD were successfully established. The findings indicate a potential role for MCP-1 over expression in the pathogenesis of PD as a downstream gene regulated by some genes and could be a new therapeutic target in PD. The information may allow a better understanding of the basic mechanisms involved in the etiology and pathogenesis of PD. Furthermore, it may permit some strategies of therapeutic interventions combine routine methods with Chinese herbal medicine.
Cell Line ; Chemokine CCL2 ; Gene Expression ; drug effects ; Gene Expression Profiling ; Humans ; Male ; Oligonucleotide Array Sequence Analysis ; Penile Induration ; drug therapy ; genetics ; pathology ; Proteins ; genetics ; Reverse Transcriptase Polymerase Chain Reaction ; Transforming Growth Factor beta ; pharmacology

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