Jun 2024, Volume 2 Issue 2
    

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  • REVIEW ARTICLE
    Yu Zhao, Wenhui Zhang, Yina Ma, Xin Zhang
    2024, 2(2): 41-50. https://doi.org/10.1002/uro2.52

    Urinary tract infection (UTI) constitutes a pervasive health concern. UTIs are dichotomously classified into upper and lower strata, and further categorized as either complicated or uncomplicated. Upper UTIs predominantly afflict the renal and ureteral domains, typified by conditions exemplified in pyelonephritis, whereas lower UTIs manifest within the confines of the urethra and bladder. The conventional diagnosis of UTIs relies upon clinical manifestations and urine culture. Common symptoms encompass dysuria, frequent micturition, hematuria, and suprapubic discomfort. Urine culture serves to identify the specific pathogens instigating the infection and assess their antibiotic susceptibility. However, this procedural protocol generally necessitates an approximate duration of 24 h, coupled with an additional 24‐h interval for antibiotic susceptibility testing. In contradistinction, the detection of cell‐free DNA (cfDNA) in the circulatory system presents a potential avenue for non‐invasive diagnostic modalities. Notwithstanding, cfDNA emanates from deteriorating cells, affording insights into the extant cellular demise within the organism. Extensive scholarly inquiry has established a positive correlation between cfDNA concentration in the bloodstream and the incidence of cell death in conditions, such as severe traumas, sepsis, aseptic inflammation, myocardial infarction, and stroke. However, limited investigative effort has been devoted to elucidating the diagnostic potential of cfDNA in the context of UTIs. Consequently, the concentration and constitution of plasma cfDNA harbor substantial promise for non‐invasively diagnosing UTIs. In summation, the utilization of cfDNA in UTI diagnosis remains an incipient area of scholarly pursuit, underscoring the imperative for further research to elucidate the prospective role of plasma cfDNA in non‐intrusively discerning UTIs.

  • RESEARCH ARTICLE
    Amr Abdelhamid Abouzeid, Mohammad Seada, Mohamed Waly
    2024, 2(2): 51-57. https://doi.org/10.1002/uro2.68

    Background: Repair of proximal hypospadias remains a challenge with no consensus on the best surgical approach. Several reports have shown recurrence of chordee after plate‐preserving techniques. In this report, we present our experience in managing cases who presented with persistent/recurrence of chordee after tubularized incised plate (TIP) repair for proximal hypospadias.

    Methods: Between 2015 and 2023, the study included eight patients who presented with ventral penile curvature after previous hypospadias repair in infancy (TIP urethroplasty). Reoperation to correct persistent ventral curvature was performed several years after the primary TIP repair (3–15 years; mean 7.9 years; median 7.5 years). The reoperation was a two‐stage procedure: the first stage comprised transection of the urethra and grafting (lower lip mucosal graft); the second stage (6 months later) was a Thiersch‐Duplay urethroplasty.

    Results: Complications included poor taking of the graft after the first stage in one case (12.5%), which was regrafted using buccal (cheek) mucosa. Complications after second stage included urethro‐cutaneous fistulae in five (62.5%) that were successfully surgically treated at a later stage. Follow‐up after second stage ranged between 6 months and 7 years (mean 2.4 years; median 1 year). Satisfaction with reoperation to correct penile curvature was noted by parents as well as older children (adolescents) who appreciated better cosmesis by increasing ventral penile length and improved curvature.

    Conclusion: Preservation of the urethral plate in proximal hypospadias may result in shortened penile length, mostly on the ventral aspect. A two‐stage reoperation to increase the length of the penile urethra can successfully reverse this complication.

  • CASE REPORT
    Mohammed Mahdi, Shannon Leung, Curtis Pettaway, Run Wang
    2024, 2(2): 58-61. https://doi.org/10.1002/uro2.62

    Background: Erectile dysfunction is a common consequence following radical cystectomy (RC), with inflatable penile prostheses (IPPs) placement considered as the gold standard for refractory cases. Urethral recurrence post‐RC necessitates urethrectomy, which poses challenges for patients with an IPP in place. The thinning of the ventral tunica albuginea during urethrectomy may increase the risk of corporal disruption and IPP cylinder aneurysm, affecting device functionality. This case report introduces a novel surgical technique using Tutoplast, a human‐derived pericardium allograft, for corporal reinforcement during urethrectomy in the presence of an in‐situ IPP.

    Methods: A 74‐year‐old male, with a history of robotic‐assisted RC and IPP presented with recurrent bleeding per urethra. Imaging revealed urethral masses. The patient underwent total urethrectomy which resulted in significant thinning of the ventral tunica albuginea. To prevent device aneurysm or mechanical failure, a Tutoplast graft was used intraoperatively to reinforce the thinned tunica. Patient was followed up six months postoperatively.

    Results: Final pathology showed urethral high‐grade papillary urothelial carcinoma. Postoperatively, the patient exhibited smooth recovery, with normal IPP functionality up to the 6‐month follow‐up period. While Tutoplast has been used in other settings, its application in preventing IPP malfunction posturethrectomy is a unique contribution.

    Conclusion: Corporal reinforcement using Tutoplast during urethrectomy in patients with an existing IPP presents a simple and cost‐effective solution to mitigate the risks of corporal disruption and IPP cylinder aneurysms. The positive outcomes demonstrated in this case report warrant further studies on larger patient populations and longer follow‐up periods to assess the long‐term outcomes of this technique.

  • COMMENTARY
    Guiting Lin, Run Wang, Tom F. Lue
    2024, 2(2): 62-64. https://doi.org/10.1002/uro2.65
  • NEWS
    Guiting Lin, Run Wang, Tom F. Lue
    2024, 2(2): 65-72. https://doi.org/10.1002/uro2.66