Risk and protective factors for secondary procedures after endoscopic dilatation of primary obstructive megaureters.

Purpose: High-pressure balloon dilatation (HPBD) of the ureterovesical junction with double-J stenting is a minimally invasive alternative to ureteral reimplantation or cutaneous ureterostomy for first-line surgical treatment of primary obstructive megaureter (POM). The aim of our study was to identify the risk factors associated with the need for secondary procedures due to HPBD failure.

Methods: Prospective data were collected from patients who underwent HPBD for POM between 2007 and 2021 at a single institution.

A novel therapy for idiopathic urethritis in children: Local steroid injection.

Idiopathic urethritis (IU) is difficult to manage and there is no standarized therapy. The technique of local steroid injection (LSI) for the treatment of IU in children and the results of the patients undergoing LSI from 2020 to 2021 in a single center are presented. Seven patients with IU underwent LSI.

Long-term outcome of randomized clinical trial between polyacrylate-polyalcohol copolymer (PPC) and dextranomer-hyaluronic acid copolymer (Dx/HA) as bulking agents for endoscopic treatment of primary vesicoureteral reflux (VUR).

Objective: The aim of our study is to compare long-term outcome of endoscopic treatment of VUR using PPC or Dx/HA.

Patients And Methods: From October 2014 to April 2017 patients with VUR grades from 3 to 5 that needed endoscopic treatment were eligible for this RCT. Patients were randomized in two groups: PPC and Dx/HA.

Is Being Overweight a Risk Factor for Torsion of the Appendix Testis in Children?: A Paired Case-Control Study.

Objective: This study aimed to determine whether being overweight during childhood is a risk factor for torsion of the appendix testis (TAT).

Methods: We conducted a paired case-control study with all boys surgically treated for TAT, paired by age and sex with patients who were seen in the emergency department for a reason other than acute scrotum. Age and weight were registered, and weight percentile (WP) by age was calculated and compared between groups.

Latitudes and attitudes: A multinational study of laparoscopic pyeloplasty in children.

Purpose: The Anderson-Hynes technique has been the treatment of choice for primary ureteropelvic junction obstruction in children. Laparoscopic approach has shown similar outcomes to open, with advantages of shorter hospital stay and less pain. We reviewed the experience of 11 geographically diverse, tertiary pediatric urology institutions focusing on the outcomes and complications of laparoscopic pyeloplasty.

Expression of Protein SOX9 in Biliary Atresia.

Objectives: Biliary atresia (BA) is still an enigmatic disease. Deeper knowledge of its pathophysiology could help develop better treatments. SOX9 regulates bile duct development, liver regeneration and fibrosis; therefore, it could be determinant in characterizing BA liver damage.

Distinguishing outcomes of neonatal intestinal volvulus: Review of our experience over the last 20 years.

Aim: There are two types of intestinal volvulus: midgut (MGV) and segmental (SV). Patients with different types of intestinal volvulus are often included in the same case series, which may affect the perception of how severe "intestinal volvuli" are. We aimed to compare both types of intestinal volvulus.

Comparison between mini-laparoscopy, conventional laparoscopy and open approach for ureteropelvic junction obstruction treatment in children.

Introduction: The aim of the study was to compare 3 mm mini-laparoscopy (mini LP), standard 5 mm laparoscopy (LP) and open surgery for pediatric pyeloplasty in a single center.

Methods: Patients who underwent pyeloplasty from 1997 to 2017 at Hospital Sant Joan de Déu were prospectively collected. Demographic data, clinical, surgical and radiological variables were assessed.

Incidence and risk factors for calcification after dextranomer/hyaluronic acid (Dx/HA) copolymer injection for vesicoureteral reflux.

Introduction: Since the first case of dextranomer/hyaluronic acid (Dx/HA) implant calcification in 2008, concern about the long-term sequelae of Dx/HA injection has been growing. According to previous reports, the incidence of Dx/HA calcification 4 years after injection would be around 2%.

Aim: The primary aim was to estimate the incidence of Dx/HA implant calcification after endoscopic treatment of vesicoureteral reflux in pediatric patients.

Porcine dermal patches as a risk factor for recurrence after congenital diaphragmatic hernia repair.

Purpose: Recurrence of congenital diaphragmatic hernia (CDH) is a treatment-related morbidity which can be preventable. There is no consensus about the ideal material for diaphragmatic substitution. The aim of our study is to identify if the use of porcine dermis patches increases the risk of CDH recurrence.

Value of supranormal function on Tc-mercaptoacetyltriglycine renal scan in paediatric patients with obstructive hydronephrosis.

Objectives: To study related factors and clinical significance of supranormal function in paediatric patients with pelvi-ureteric junction obstruction, and to predict which factors cause renal function overestimation.

Patients And Methods: Patients who underwent pyeloplasty from 2012 to 2017 were prospectively collected. Variables were compared between patients with and without supranormal function on Tc-mercaptoacetyltriglycine renal scan (supranormal defined as differential renal function [DRF] ≥55%).

Bilateral hydrosalpinx in patients with Hirschsprung's disease.

Purpose: Hirschsprung's disease (HD) is uncommon in females. There are very few reports on the patients' obstetric and gynecological outcome. Hydrosalpinx causes pain and infertility.

Effects of Platelet-Rich Plasma (PRP) on a Model of Renal Ischemia-Reperfusion in Rats.

Renal ischemia-reperfusion injury is a major cause of acute renal failure, causing renal cell death, a permanent decrease of renal blood flow, organ dysfunction and chronic kidney disease. Platelet-rich plasma (PRP) is an autologous product rich in growth factors, and therefore able to promote tissue regeneration and angiogenesis. This product has proven its efficacy in multiple studies, but has not yet been tested on kidney tissue.