Publications by authors named "Hsi-Yang Wu"

The European Reference Networks (ERNs) initiative was started by the European Commission. The initiative was launched in 2017 in response to the 2011 EU Directive on Cross-Border Healthcare (Directive 2011/24/EU), which emphasized the need to improve healthcare for patients with rare diseases and complex conditions across the European Union. Currently, 24 ERNs are available for rare diseases.

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Objective: To review Vitamin K deficiency bleeding as it relates to infant male circumcision and provide insights and recommendations on how to provide the best care for infants who did not receive prophylactic intramuscular (IM) Vitamin K.

Methods: This is a clinical perspective that was informed by a targeted literature review to identify current evidence and best practices related to Vitamin K deficiency bleeding as it related to infant male circumcision.

Results: When appropriately counseled and with contingency protocols in place, circumcision may be safely performed in select infants without prophylactic IM Vitamin K.

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Objective: To study the impact of a student-specific urology conference for students considering a career in urology. The first symposium specifically for medical students interested in urology was designed to provide an opportunity to present their research, explore urological subspecialties, and network with faculty members, residents, and other students.

Methods: Medical students and faculty at a US medical school organized the inaugural New England Student Urology Symposium (NESUS).

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Today, prenatal diagnosis of congenital urogenital malformations is mostly dependent on anatomical variations found on imaging. However, these findings can mislead us in telling us when to intervene, and about post-natal prognosis. Since many findings are dependent on multiple assessments, delayed diagnosis can occur, leading to less optimal outcomes compared to early intervention.

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Precision Medicine holds promise for helping us manage specific phenotypes of common diseases. For rare diseases such as hypospadias, DSD, and pediatric solid tumors, it can also reveal underlying risk factors and pathogenesis. Professors Ann Nordgren and Anna Lindstrand share their experiences in the development and ongoing initiatives of the Swedish national project on Precision Medicine and how it could change the care of pediatric urology patients.

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Article Synopsis
  • Hypospadias repair studies often fail to provide specific details about surgical techniques used, which limits the ability to make effective comparisons across different practices.
  • This study aimed to create a comprehensive surgical atlas by assessing the methods surgeons use for documenting their operative notes and analyzing their surgical techniques for distal and proximal hypospadias repairs.
  • Twenty-five surgeons from twelve institutions participated, revealing a wide range in the number of procedures performed annually, with many surgeons reporting they perform fewer than 20 distal repairs per year.
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A multidisciplinary DSD clinic offers the opportunity for different specialties to learn from each other, as each provides their own perspective and expertise to the management of these complex patients, leading to collaborative care. For the patient, a multi-disciplinary clinic can improve access to care and decrease stress, as patients see all of the specialists on one day. For urologists seeing patients with DSD within a multi-disciplinary DSD clinic as well as independently, understanding what other specialists provide can help facilitate care and referral.

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Introduction: Urinary diversion in pediatric renal transplant candidates with bladders not amenable to primary reconstruction can be achieved by pre-transplant ileal conduit creation. We performed cutaneous ureterostomies to limit pre-transplant surgery, protect the peritoneum for dialysis, transplant patients sooner, and preserve ureter length for future surgical reconstruction.

Methods: We compared four pediatric transplant recipients with ureterostomies to four recipients with ileal conduits from 2009 to 2017.

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Bladder cancer is rare in the pediatric population, and clear cell carcinoma is extremely rare with one other pediatric case reported. Here we report the clinical outcome for a medically complicated pediatric patient with muscle invasive clear cell carcinoma treated with partial cystectomy without neoadjuvant or adjuvant therapy. Final pathology was stage T2bN0M0 with negative margins.

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Purpose: The treatment of VUR in children with UTI has changed significantly, due to studies showing that antibiotic prophylaxis does not decrease renal scarring. As children with kidney transplants are at higher risk for UTI, we investigated if select patients with renal transplant VUR could be managed without surgery.

Materials And Methods: A total of 18 patients with VUR into their renal grafts were identified, and 319 patients underwent transplantation from 2006 to 2016.

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Objective: Multicystic dysplastic kidney (MCDK) is one of the most common anomalies detected by prenatal ultrasound. Our objective was to identify factors associated with severe adverse neonatal outcomes of prenatally diagnosed MCDK STUDY DESIGN: A retrospective review of prenatally diagnosed MCDK (1 January 2009 to 30 December 2014) from a single academic center was conducted. The primary outcome was death or need for dialysis among live-born infants.

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Introduction: Previous studies have suggested that the onset of alpha- (α) and beta- (β) adrenergic receptor activity is delayed in young animals. The use of alpha1- (α1-) antagonists for dysfunctional voiding, and beta3- (β3-) agonists for overactive bladder in younger children may not be indicated if maturation is required before bladder and urethral adrenergic receptors are active.

Objective: To determine the sex- and age-dependent responses of the bladder and external urethral sphincter (EUS) to α- and β-adrenergic agents in neonatal and young adult rats.

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Introduction: Pediatric urinary incontinence has been proposed as a cause for adult urinary incontinence, yet animal models mimic the findings of overactive bladder more closely than dysfunctional voiding. We used the bladder reduction (BR) model to study the effects of early external urethral sphincter (EUS) dysfunction on the maturation of lower urinary tract function in neonatal and young adult rats of both sexes.

Objective: To determine long-term alterations in bladder and EUS function in young adult rats caused by neonatal BR.

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Background: The surgical management of paediatric bladder/prostate rhabdomyosarcoma (B/P RMS) continues to develop, with the goal of maximising organ preservation while achieving successful cancer control. The timing of radiotherapy and surgical excision to improve event-free survival (EFS) and overall survival (OS) remains controversial.

Methods: Previous reports in English on B/P RMS over the past 15 years were identified and reviewed, focusing on studies comparing the effects of radiotherapy and surgery for local control, the effect of local control on OS, and improved means of diagnosing viable tumour after chemotherapy.

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Objectives: To assess the evidence showing that a specific method of toilet training (TT) is more effective than others, as any method of TT recommended by a physician faces obstacles because parents rarely request advice on TT from physicians, and TT practices vary tremendously across cultures and socioeconomic levels.

Methods: Reports on the natural course of urinary incontinence in children and different methods of TT, published in English between 1946 and 2012, were reviewed. Specifically investigated were historical recommendations on TT, the prevalence of urinary incontinence during childhood, the outcome of TT methods, and the effect of culture and socioeconomic status on the choice of TT method and timing.

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