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Front Pediatr 2018 31;6:329. Epub 2018 Oct 31.

Department of Pediatric Surgery, University Teaching Hospital of Tours, Gatien de Clocheville Hospital, Tours, France.

We described the initial experience of four referral centers in the treatment of primary obstructive megaureter (POM) in children, by high-pressure balloon dilatation (HPBD) of the ureterovesical junction with double JJ stenting. We managed a retrospective multicenter study to assess its effectiveness in long-term. We reviewed the medical records of all children who underwent HPBD for POM that require surgical treatment from May 2012 to December 2017 in four different institutions. Read More

J Pediatr Urol 2018 Oct 5. Epub 2018 Oct 5.

Department of Paediatric Surgery, Bristol Royal Children's Hospital, Bristol, UK; Department of Paediatric Surgery, Ain Shams University, Cairo, Egypt. Electronic address:

Background/aim: Endoscopic stenting is an accepted treatment option for children with symptomatic or progressive primary obstructive megaureter (PROM). Here, long-term outcomes with endoscopic stenting are reviewed.

Methods: Patients with PROM treated surgically over a 12-year period were identified using a prospectively maintained departmental database. Read More

Front Pediatr 2018 5;6:275. Epub 2018 Oct 5.

Pediatric Urology, Hospital General Universitario Gregorio Marañón, Madrid, Spain.

To assess long-term effectiveness, complications, and outcomes of primary obstructive megaureter (POM) treated by endoscopic balloon dilation (EBD) in the largest series reported. Hundred POM in 92 consecutive patients were treated by EBD between years 2004 and 2016. A total of 79 POM (73 patients) with more than 18 months of follow-up after treatment have been analyzed. Read More

Urol Clin North Am 2018 Nov 7;45(4):525-538. Epub 2018 Sep 7.

Department of Urology, University of Iowa, Carver College of Medicine, 200 Hawkins Drive, 3RCP, Iowa City, IA 5224, USA. Electronic address:

Continuous antibiotic prophylaxis (CAP) for urinary tract infection prevention in children with vesicoureteral reflux, hydronephrosis, and hydroureteronephrosis is reviewed. A more selective use of CAP is advocated based on a review of known individual risk factors in each of these conditions that subsequently helps identify the children most likely to benefit from CAP. Both short-term and potential long-term side effects of CAP are reviewed, including the impact of prophylactic antibiotics on bacterial resistance and the microbiome. Read More

Biomed Mater Eng 2018 ;29(6):821-837

School of Industrial and Information Engineering, Polytechnic University of Milan, Milan, Italy.

Two common abnormalities in ureters include primary refluxing megaureter (PRM) and primary obstructed megaureter (POM). The aim of this study was to represent the numerical simulation of the urine flow at the end of the ureter with vesicoureteral reflux (VUR) and POM during peristalsis. Methodologically, the peristalsis in the ureter wall was created using Gaussian distribution. Read More

Int J Surg Case Rep 2018 13;51:78-81. Epub 2018 Aug 13.

Department of Urology, CHU Saint Pierre, Avenue du Président Mitterrand, 97448, Saint Pierre, La Réunion, France. Electronic address:

Introduction: Duplicated renal collecting system is one of the most common congenital upper urinary tract abnormalities. Duplex system with ectopic obstructive megaureter in the prostatic urethra is rare and exceptionally revealed in adulthood.

Presentation Of Case: We present a rare case of a 72-year-old man without any previous history of urinary symptoms, admitted through the emergency department for altered general condition associated with fever for several days. Read More

Urologe A 2018 Aug;57(8):969-986

Sektion Pädiatrische Nephrologie, Zentrum für Kinder- und Jugendmedizin, Johannes Gutenberg-Universität, Langenbeckstr. 1, 55101, Mainz, Deutschland.

Dilatations of the urinary tract are discovered in increasing numbers in intrauterine or postnatal sonographic screening examinations. Only few urinary tract anomalies (e. g. Read More

J Pediatr Urol 2018 Oct 28;14(5):382-387. Epub 2018 Jun 28.

Department of Pediatric Surgery, Children's Hospital, University Hospital of Grenoble, Grenoble, France.

Aims: The aims of this study were to evaluate the efficacy and safety of endoscopic treatment of primary obstructive megaureter in children, and to assess its long-term outcome.

Methods: Case files of 35 children who had endoscopic treatment of symptomatic primary obstructive megaureter between 2006 and 2016 were retrospectively analyzed. All children had ureterovesical junction dilatation with one or more ureteral dilators, and insertion of a JJ stent. Read More

Rom J Morphol Embryol 2018 ;59(1):197-201

Department of Surgery, Faculty of Medicine and Pharmacy, University of Oradea, Romania; Department of Occupational Medicine, University of Medicine and Pharmacy of Craiova, Romania;

Congenital hydronephrosis caused by ureteral anomalies, like ureteral duplicity, megaureter, ureteral ectopy and ureterocele, must be differentiated from ureteropelvic junction obstruction (UJO) hydronephrosis and from the hydronephrosis caused by vesicoureteral reflux. These represent a differentiated branch of congenital abnormalities in children even if not so common, but this fact should not be disconsidered. Over a five years period, from 111 operated children in our Clinic, we performed 13 interventions for congenital hydronephrosis, 11 (84. Read More

J Pediatr Urol 2018 Jun 7. Epub 2018 Jun 7.

Department of Pediatric Surgery, PSG Institute of Medical Sciences and Research, Coimbatore, India.

Introduction: Primary obstructive megaureters (POM) can be treated with one of the following options: conservative management with antibiotic chemoprophylaxis and active observation of the hydroureteronephrosis (HUN) until suspicion of renal deterioration; refluxing/non-refluxing ureteric reimplantation with antibiotic suppression; temporary double-J stenting; endoscopic balloon dilatation; endoureterotomy; and end cutaneous ureterostomy (ECU).

Objective: To study the profile of patients with POM and assess the efficacy, safety and outcome of ECU as an interim procedure.

Methods: A retrospective review was performed of patients who underwent ECU for POM between January 2004 and December 2014. Read More

J Pediatr Urol 2018 May 25. Epub 2018 May 25.

Pediatric Urology Unit, 'Bambino Gesù' Children's Hospital, Rome, Italy.

Background: It is extremely important to not only address the short-term success following endoscopic correction of vesicoureteral reflux (VUR) but also the long-term efficacy and safety of the tissue augmenting substance utilized for endoscopic correction.

Objective: This study retrospectively evaluated all cases of ureterovesical junction (UVJ) obstruction following endoscopic treatment of VUR over the last 5 years utilizing two tissue augmenting substances, with special emphasis on the safety of Vantris, and performed clinical and histological review of these patients.

Methods: The study population comprised 2495 patients who underwent endoscopic correction of VUR utilizing Deflux (1790) and Vantris (705). Read More

J Urol 2018 Jun 20;199(6):1384-1385. Epub 2018 Mar 20.

Indian J Radiol Imaging 2018 Jan-Mar;28(1):45-48

Department of Radiodiagnosis, All India Institute of Radiodiagnosis, New Delhi, India.

In infants and young children with suspicion of genitourinary tract anomalies, ultrasonography (USG) is usually the first imaging modality. Advantages of USG are well described. In the evaluation of complex congenital urogenital anomalies, ultrasound examination needs to be tailored according to the clinical suspicion and to yield maximum information. Read More

J Endourol 2018 Jun;32(6):482-487

Department of Urology, Naval Medical Center San Diego , San Diego, California.

Background: The gold standard treatment for primary obstructive megaureter (POM) with declining renal function, worsening obstruction, or recurrent infections is ureteral reimplantation with or without tapering. In infants, open surgery can be technically demanding and associated with significant morbidity. We conducted a systematic review of the literature with special interest in endoscopic management of POM and its outcomes. Read More

J Pediatr Urol 2018 Apr 21;14(2):167.e1-167.e5. Epub 2017 Nov 21.

Department of Pediatric Surgery, Pediatric Urology Division, University Children's Hospital of A Coruña, As Xubias, 84, A Coruña, Spain.

Background: Open neoureterocystostomy is the traditional surgical treatment for primary obstructive megaureter (POM). Endoscopic balloon dilation is a new minimally invasive alternative. It has been shown to be a safe and effective endoscopic procedure over short-term follow-up; however, few studies have shown its long-term efficacy. Read More

J Ultrasound 2018 Mar 16;21(1):65-68. Epub 2016 Dec 16.

Neonatal Intensive Care Unit, Azienda Istituti Ospitalieri di Cremona, Viale Priori, 1-26100, Cremona, Italy.

Urinoma, defined as an encapsulation of urine caused by urine extravasation into the perirenal space either through rupture of a calyceal fornix or a tear in the renal parenchyma, is an uncommon finding in prenatal diagnosis and the neonatal period. Urinoma can be associated with any urinary tract obstruction, or, as reported in several published cases, related to vesicoureteral reflux, kidney dysplasia, or complication arising during amniocentesis. We report on a newborn with a perinatal urinoma, with initial slight corpusculated fluid associated with nonobstructive and nonrefluxing megaureter, and no signs of kidney dysplasia. Read More

Hell J Nucl Med 2017 Sep-Dec;20 Suppl:114-122

Institute of Nuclear Medicine, Military Medical Academy, Faculty of Medicine of the Military Medical Academy, University of Defense, 11000 Belgrade, Serbia.

Objective: The purpose of this study was to evaluate damage of the kidney with technetium-99m-dimercaptosuccinic acid (Tc-DMSA) scintigraphy in children with congenital hydronephrosis (CH) and the influence of other postnatal associated diagnoses on abnormal Tc-DMSA findings.

Subjects And Methods: Tc-DMSA scintigraphy in 54 children (17 girls and 37 boys), aged from 2 months to 5 years (median 11 months) with 66 congenital hydronephrotic renal units (RU) (42 unilateral hydronephrosis-29 boys and 13 girls; 12 bilateral hydronephrosis-8 boys and 4 girls) was performed. Male/female ratio was 2,2:1, unilateral/bilateral hydronephrosis ratio was 4:1. Read More

Anat Sci Int 2018 Jun 8;93(3):394-399. Epub 2017 Dec 8.

Department of Anatomy, Dokkyo Medical University, Mibu, Tochigi, 321-0293, Japan.

A unilateral megaureter was found in an elderly female cadaver during routine dissection. The left proximal ureter, which was thick and convolute, descended and entered into the pelvic cavity, where the distal ureter was attached to the posterior pelvic wall at the inlet level. Removal of connective tissue surrounding the attached region revealed ureteric entrapment in the sacroiliac joint. Read More

Urology 2018 Mar 1;113:e7-e8. Epub 2017 Dec 1.

Department of Urology, PGIMER, Chandigarh, India.

We describe the imaging findings of a 19-year-old female patient who presented with recurrent urinary tract infections and pain abdomen which was diagnosed to be due to a left-sided focal segmental megaureter with a calculus. The highlights of the case are functioning moiety with no other associated anomalies like vesicoureteral reflux, Duplex system, and so on. Read More

J Urol 2018 Jun 2;199(6):1615-1621. Epub 2017 Dec 2.

Division of Urology, Hospital for Sick Children, Toronto, Ontario, Canada; Department of Surgery, University of Toronto, Toronto, Ontario, Canada.

Purpose: The Urinary Tract Dilation grading system for prenatal hydronephrosis was introduced to address potential shortcomings of the Society for Fetal Urology classification. Hydronephrosis resolution is an important patient outcome and is frequently discussed during family counseling. We compared these 2 grading systems and their ability to predict time to hydronephrosis resolution. Read More

J Med Case Rep 2017 Dec 4;11(1):337. Epub 2017 Dec 4.

Department of Radiology, School of Medicine, College of Medicine and Health Science, University of Gondar, Gondar, Ethiopia.

Background: Prune belly syndrome is a rare congenital malformation of unknown etiology, with the following triad of findings: abdominal muscle wall weakness, undescended testes, and urinary tract abnormalities. In most cases, detection of prune belly syndrome occurs during neonatal or infancy period. In this case report, we describe a 12-year-old boy from Ethiopia with the triad of findings of prune belly syndrome along with skeletal malformations. Read More

Urologiia 2017 Oct(5):69-74

Republican Childrens Clinical Hospital, Syktyvkar, Russia.

Introduction: Duplication of the upper urinary tract is one of the most common congenital urological anomalies. In patients with critically decreased or lost function of one of the renal segments, heminephrureterectomy is usually the treatment of choice. Until recently, this was an open surgery; in cases of complete removal of the ureter, an additional incision in the iliac region was required. Read More

J Pediatr Urol 2017 Dec 12;13(6):637-638. Epub 2017 Oct 12.

Division of Urology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA. Electronic address:

Objective: The aim was to demonstrate surgical techniques used in pediatric robot-assisted laparoscopic megaureter tapering (RALMT) with ureteral reimplantation. We report on our preliminary experience.

Methods: We reviewed video of patients who underwent RALMT with ureteral reimplantation between August 2012 and November 2015. Read More

Prog Urol 2017 Sep 1;27(10):507-512. Epub 2017 Sep 1.

Service de chirurgie pédiatrique urologique, CHU de Tours, hôpital Gatien de Clocheville, 37000 Tours, France. Electronic address:

Introduction: The objective of this study is to investigate the infectious morbidity associated with high-pressure balloon dilatation (HPBD) and an indwelling double J stent, in primary obstructive megaureter.

Methods: We reviewed the cases of 12 patients undergoing endoscopic treatment for primary obstructive megaureter from January 2012 to January 2015. The characteristics of the infection and data concerning the patient and the intervention were analyzed. Read More

Int Urol Nephrol 2017 Nov 29;49(11):1973-1978. Epub 2017 Aug 29.

Department of Urology, Peking University First Hospital, Institute of Urology, Peking University, National Urological Cancer Center, No. 8 Xishiku St, Xicheng District, Beijing, 100034, China.

Purpose: To evaluate the long-term outcomes of laparoscopic ureteral reimplantation with extracorporeal tailoring and direct nipple ureteroneocystostomy for adult obstructive megaureter and compare the results with the open procedure.

Methods: From January 2007 to July 2013, 22 patients underwent laparoscopic and 28 patients underwent open ureteral reimplantation for adult obstructive megaureter. For laparoscopic group, the dilated ureter was delivered out of through a 12-mm port and the distal end was tailored and formed into an antireflux nipple extracorporeally. Read More

J Urol 2017 Nov 22;198(5):995-996. Epub 2017 Sep 22.

Department of Urology, Indiana University School of Medicine, Indianapolis, Indiana.

J Ayub Med Coll Abbottabad 2017 Jan-Mar;29(1):150-153

Department of Radiology, Dow University of Health Sciences, Civil Hospital Karachi, Pakistan.

We reporting unilateral renal agenesis with ipsilateral ureterocoele, mega ureter and blind end proximal ureter in same patient first time as case report and has not been so far reported in local or international literature. Ultrasound, CT scan and intravenous pyelography performed which confirm the case. Patient presented with left lumber and pelvic pain on and off and history of recurrent urinary tract infection. Read More

J Minim Invasive Gynecol 2018 Mar - Apr;25(3):372-373. Epub 2017 Jul 5.

Department of Gynecology, Kurashiki Medical Center, Okayama, Japan.

J Med Case Rep 2017 Jul 1;11(1):177. Epub 2017 Jul 1.

Department of urology, Hassan II University Hospital, Fez, Morocco.

Background: Primary obstructive megaureter is relatively uncommon in adults. This condition usually regresses spontaneously or is treated during infancy. It can remain asymptomatic for decades until adulthood when symptoms may manifest in the event of complications or during a routine radiologic imaging. Read More

J Laparoendosc Adv Surg Tech A 2017 Aug 8;27(8):851-857. Epub 2017 Jun 8.

Department of Pediatric Surgery and Urology, University Hospital of Vall d'Hebron , Barcelona, Spain .

Background: Open surgery is a preferred treatment for primary obstructive megaureter (POM) in cases where the conservative treatment fails, with reported success rates of 90%-96%.

Objective: To describe our initial experience in the treatment of POM by laparoscopic-assisted extracorporeal ureteral tapering repair (EUTR) and laparoscopic ureteral extravesical reimplantation (LUER) by following Lich Gregoir technique as an alternative to open surgery.

Design, Setting, And Participants: A total of 7 patients with POM underwent laparoscopic-assisted extracorporeal ureteral tapering repair and ureteral extravesical reimplantation by following Lich Gregoir technique between 2011 and 2014. Read More

J Urol 2017 Nov 29;198(5):1159-1167. Epub 2017 May 29.

Division of Urology, The Hospital for Sick Children and Department of Surgery, University of Toronto, Toronto, Ontario, Canada. Electronic address:

Purpose: A nonrefluxing megaureter is a relatively common cause of antenatal hydronephrosis. Although nonoperative management is favored, surgical intervention is sometimes warranted. However, there is controversy regarding the best approach, particularly in young children. Read More

Pathol Res Pract 2017 Jul 25;213(7):831-835. Epub 2017 Mar 25.

Department of Pathology, Eskişehir Osmangazi University, Faculty of Medicine, Eskişehir, Turkey. Electronic address:

Background: Nephrogenic adenoma is an uncommon benign lesion that occurs at several sites in urinary tract, from the renal pelvis to urethra, with the highest frequency in urinary bladder. Nephrogenic adenoma displays a broad spectrum of architectural and cytological features. Hence, recognition of its characteristic histopathological features is needed to distinguish this lesion from its mimickers. Read More

J Pediatr Surg 2018 Apr 11;53(4):813-817. Epub 2017 May 11.

Department of Pediatric Surgery, Helsinki University Hospital, Helsinki, Finland.

Purpose: To evaluate the risk of urinary tract infections (UTIs) in infants with prenatally detected complicated duplex collecting system (CDS) or ureterocele.

Materials And Methods: All patients with prenatally detected CDS (n=34) or single system ureterocele (n=7) who were admitted to our institution between 2003 and 2013 were enrolled in this retrospective analysis. Duplex collecting systems with ureterocele (n=13), vesicoureteral reflux (VUR) (n=20) or nonrefluxing megaureter without ureterocele (n=7) were determined as complicated. Read More

Pediatr Int 2017 Jun 15;59(6):742-743. Epub 2017 May 15.

Department of Pediatrics, Kansai Medical University, Hirakata-shi, Osaka, Japan.

Urol Ann 2017 Apr-Jun;9(2):150-152

Department of Urology, Yenepoya Medical College, Mangalore, Karnataka, India.

Objective: This study aims to demonstrate a novel laparoscopic technique of tapering megaureter without disrupting the blood supply and disconnecting the ureter.

Materials And Methods: Eight cases of primary obstructive megaureter in the age group of 14-22 years underwent laparoscopic extravesical ureteric reimplantation between August 2011 and July 2015 using our novel technique. Five patients had obstruction on left side and three on right side. Read More

Int J Urol 2017 Jun 6;24(6):468-471. Epub 2017 May 6.

Department of Surgery and Urology for Children and Adolescents, Medical University of Gdansk, Gdansk, Poland.

We present a case of a girl with an extremely rare, posterior type of persistent cloaca, which was associated with other abnormalities, including an undeveloped vulva and vagina, agenesis of the right kidney, secondary obstructive megaureter, unicornate uterus, persisted tailgut, sacral bone hypoplasia, and pubic symphysis hypertrophy. An operative approach was as follows: (i) colostomy and ureterocutaneostomy; (ii) creation of an ileal conduit with antirefluxing uretero-ileal anastomosis, and then creation of a continent catheterizable ileal reservoir; (iii) anastomosis of sigmoid colon to rectal stump; and (iv) vaginal and external genital reconstruction. Because of abnormal anatomical conditions where the uterus was situated adjacent to the open, incompetent bladder neck, we decided to create a vagina using the bladder wall instead of the bowel segment. Read More

Urology 2017 Aug 2;106:178-182. Epub 2017 May 2.

Chief of Division of Pediatric Urology, Cohen Children's Medical Center of NY, Hofstra Northwell School of Medicine, Long Island, NY.

Objective: To report our experience in applying the Lich-Gregoir extravesical ureteral reimplantation (EVR) approach to complex cases (megaureter, duplex systems) through a small inguinal incision, with the goal of minimizing invasiveness.

Materials And Methods: We reviewed the records of all patients who underwent common sheath or tapered EVR through an inguinal incision. Patient characteristics and reflux grade were obtained, and outcomes were assessed. Read More

Arch Esp Urol 2017 Apr;70(3):349-356

Director de la Escuela Internacional de Urología Pediátrica y fetal del ILMO Colegio de Médicos de Málaga. España.

Differentiating between the cases of megaureter that require surgery and the ones in whom treatment can be delayed is challenging. A large number of surgical techniques for the treatment of POM been proposed aiming mainly to reduce renal damage by relieving the affected ureter. Resection of the affected ureteral segment followed by vesicoureteral reimplantation either with or without reduction ureteroplasty is the classic treatment, however posing a high rate of complications when performed in patients aged less than one year. Read More

Arab J Urol 2017 Mar 9;15(1):48-52. Epub 2017 Jan 9.

Pediatric Urology Unit, Department of Genito-Urinary Surgery, Faculty of Medicine, Alexandria University, Alexandria, Egypt.

Objective: To report our initial experience in the application of laparoscopy in the management of children with unilateral vesico-ureteric reflux (VUR) using the laparoscopic extravesical transperitoneal approach following the Lich-Gregoir technique, and to evaluate the results and benefits of this technique for such patients.

Patients And Methods: Between February 2013 and August 2014, 17 children [13 girls and four boys, with a median (range) age of 60 (24-120) months] presented with recurrent febrile urinary tract infections and were diagnosed with unilateral VUR. They underwent transperitoneal extravesical laparoscopic ureteric re-implantation following the Lich-Gregoir technique. Read More

Clin Dysmorphol 2017 Apr;26(2):78-82

aManchester Centre for Genomic Medicine, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre bDepartment of Burns and Plastic Surgery, Royal Manchester Children's Hospital, Central Manchester NHS Foundation Trust cDivision of Evolution and Genomic Sciences, School of Biological Sciences, University of Manchester, Manchester dDepartment of Paediatrics, Royal Preston Hospital, East Lancashire Teaching Hospitals Trust, Preston, UK.

The ectodermal dysplasia and cleft lip/palate (EEC) syndrome describes the association of ectrodactyly, ectodermal dysplasia and orofacial clefting. As with many autosomal dominant disorders, there is variability in expression and not all of these three core features are present in every individual with the condition. Moreover, there may be additional associated features, which are under-recognized. Read More

Arch Pediatr 2017 Mar 1;24(3):249-253. Epub 2017 Feb 1.

Chirurgie pédiatrique, American Memorial Hospital, CHU de Reims, 47, rue Cognacq-Jay, 51100 Reims, France.

Endoscopic management is the gold standard for symptomatic low-grade vesicoureteral reflux (VUR) in children. Deflux (hyaluronic acid/dextranomer) injection is highly effective and has very few complications. We report on two cases of secondary megaureter after Deflux injections. Read More

Pediatr Surg Int 2017 May 20;33(5):623-626. Epub 2017 Jan 20.

Childrens Hospital at Westmead, Sydney, Australia.

Objective: Transient urinary retention has been recognized as a complication of bilateral ureteroneocystostomy (UNC), when performed extravesically. The objective of this study was to review a collective surgeons' experiences of unilateral extra- and unilateral and/or bilateral intra-vesical ureteral reimplanation, where urinary retention greater than 6 weeks, or what we have termed, "prolonged urinary retention" (PUR), occurred.

Materials And Methods: We retrospectively reviewed charts to identify PUR after any open or robotic reimplant, other than bilateral extravesical, between 1998 and 2015 as reported by five surgeons. Read More

BMJ Case Rep 2016 Dec 15;2016. Epub 2016 Dec 15.

Department of Urology, King George's Medical University, Lucknow, Uttar Pradesh, India.

A 1-year-old male infant presented with fever and abdominal lump for 3 months with increased leucocyte count (15 300/mm) and serum creatinine (0.83 mg%). Abdominal ultrasound and renal scan demonstrated solitary left kidney with dilated tortuous left ureter. Read More

Transl Pediatr 2016 Oct;5(4):262-265

Department of Pediatric Surgery, Hospital Lenval, Nice, France.

Background: In contrast to adult patients, a relatively large number of open surgical procedures are still needed in the treatment of urolithiasis in children. Since almost all open surgical techniques may be reproduced by minimal access surgery (MAS), there is a rationale to apply the latter in the management of pediatric urolithiasis. Our study aimed to assess the feasibility and outcome of MAS in the treatment of pediatric urinary calculi. Read More

Cir Cir 2017 May - Jun;85(3):196-200. Epub 2016 Nov 12.

Departamento de Estudios de Posgrado, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México.

Background: An alternative treatment for obstructive and refluxing obstructive megaureter with ureterovesical junction maintenance through laparoscopy is proposed.

Material And Methods: The series consists of 8 cases, all of them studied because of prenatal hydronephrosis or febrile urinary tract infection. Seven were diagnosed with obstructive megaureter and one with obstructive refluxing megaureter. Read More

J Pediatr Urol 2017 Feb 24;13(1):47.e1-47.e7. Epub 2016 Oct 24.

Department of Paediatric Surgery and Urology, Princess Margaret Hospital for Children, Perth, Australia; School of Surgery, Faculty of Medicine, Dentistry and Health Sciences, University of Western Australia, Perth, Australia.

Purpose: This study aimed to assess the outcome of intravesical ureteric reimplantation for primary obstructed megaureter (POM) performed in infants under 1 year of age.

Materials And Methods: A retrospective cohort study was carried out of all infants undergoing intravesical ureteric reimplantation surgery for POM at two pediatric centers in the 12 years between 2003 and 2014. Outcomes were compared with those of children aged over 1 year undergoing intravesical reimplantation for POM during this period. Read More

J Pediatr Urol 2017 Feb 8;13(1):52.e1-52.e5. Epub 2016 Oct 8.

Department of Urology and Pediatric Urology, Medical University Ulm, Ulm, Germany.

Objective And Introduction: Cowper's syringocele is a cystic dilation of the bulbourethral gland duct, initially defined by Maizels et al. in 1983. Although obstructive and non-obstructive types of this rare anomaly are described, clinical symptoms are highly unspecific. Read More

Int Urol Nephrol 2016 Dec 2;48(12):1937-1941. Epub 2016 Sep 2.

Department of Pediatric Surgery, Provincial Hospital Affiliated To Shandong University, Jinan, 250021, China.

Purpose: To describe a modified ureteral orthotopic reimplantation method in infant with primary obstructive megaureter (POM) and report our initial experience.

Methods: Thirteen children with POM (range 1-7 months) underwent modified transvesical ureteral implantation surgery. Treatment consists of transecting the ureter proximal to the obstruction and performing orthotopic reimplantation in end freely fashion with distal ureter protruding into the bladder, providing dilated ureteral diameter: ureteral exposure length in bladder ratio of 1:1. Read More

Arab J Urol 2016 Jun 20;14(2):171-7. Epub 2016 May 20.

Department of Urology, Faculty of Medicine, Alexandria University, Alexandria, Egypt.

Objectives: To present a novel ureteric re-implantation technique for primary obstructed megaureter (POM) that ensures success in the short- and long-term, as conventional techniques are not ideal for megaureters especially in children, with ureteric stenosis and reflux being common complications after re-implantation.

Patients And Methods: Between 2009 and 2012, 22 paediatric patients with POM were enrolled. We performed a new technique for re-implantation of these ureters to ensure minimal incidence of ureteric strictures and easy subsequent endoscopic access. Read More

Int Urol Nephrol 2016 Nov 4;48(11):1743-1749. Epub 2016 Aug 4.

Department of Pediatrics, Division of Pediatric Nephrology, Mainz University Medical Center, Langenbeckstr.1, 55131, Mainz, Germany.

Purpose: Primary non-refluxing megaureter (pMU) is a multifaceted and challenging congenital pathology of the urinary tract. We report our 23-year experience with this anomaly in terms of presentation, diagnostic work-up and management.

Materials And Methods: We retrospectively reviewed the medical records of 212 children diagnosed with pMU between 1986 and 2009 at our institution. Read More