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posterior urethral valves

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https://www.readbyqxmd.com/read/29673009/in-utero-spontaneous-bladder-rupture-in-a-fetus-with-posterior-urethral-valve-a-case-report-of-prenatal-diagnosis-and-management
#1
Shoichi Magawa, Hiroaki Tanaka, Masafumi Nii, Shintaro Maki, Yuki Kamimoto, Tomoaki Ikeda
Posterior urethral valve (PUV) rarely causes bladder rupture. We experienced hydronephrosis due to ureteral obstruction after the natural repair of a ruptured bladder in a fetus with PUV. Fetal ascites and oligohydramnios were diagnosed at 26 weeks' gestational age. While we followed up with ultrasonography, we regularly removed the fetal ascites via abdominal puncture, injecting warm saline instead of amniotic fluid. At 35 weeks' gestational age, the infant was diagnosed with severe bilateral hydronephrosis, absent of ascites and oligohydramnios...
April 19, 2018: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29664229/a-classic-twin-study-of-lower-urinary-tract-obstruction-report-of-3-cases-and-literature-review
#2
Sandra Frese, Alexander Weigert, Bernd Hoppe, Markus Feldkötter, Michael Ludwig, Stefanie Weber, Katarzyna Kiliś-Pstrusińska, Marcin Zaniew, Heiko Reutter, Alina C Hilger
OBJECTIVE: The aim of the present study was to investigate genetic effects in the formation of congenital lower urinary tract obstruction (LUTO) comprising posterior urethral valves (PUV), urethral atresia, and urethras with variable degrees of stenosis. METHODS: A classic twin study was performed by assessing LUTO twin pairs from the literature. Furthermore, data regarding 3 previously unreported twin pairs with PUV from University of Bonn, Essen and Wrocławs own in-house databases were added...
April 17, 2018: Lower Urinary Tract Symptoms
https://www.readbyqxmd.com/read/29621498/urinary-ascites-secondary-to-bilateral-mid-ureteral-stenosis-in-a-neonate
#3
Fumi Matsumoto, Masataka Kawamura, Futoshi Matsui, Koji Yazawa, Kenji Shimada
Urinary ascites is most commonly seen in fetuses and newborns with obstructive uropathy. The majority of cases are associated with lower urinary tract obstruction, such as posterior urethral valves. In this report, we present a unique case of neonatal urinary ascites caused by congenital supravesical obstruction. To date, neonatal urinary ascites secondary to bilateral mid-ureteral stenosis without a history of antenatal diagnosis has not been reported.
April 2, 2018: Urology
https://www.readbyqxmd.com/read/29534877/the-protective-arm-of-the-renin-angiotensin-system-may-counteract-the-intense-inflammatory-process-in-fetuses-with-posterior-urethral-valves
#4
Natalia P Rocha, Fernando M Bastos, Érica L M Vieira, Thiago R R Prestes, Katia D da Silveira, Mauro M Teixeira, Ana Cristina Simões E Silva
OBJECTIVE: Posterior urethral valve is the most common lower urinary tract obstruction in male children. A high percentage of patients with posterior urethral valve evolve to end-stage renal disease. Previous studies showed that cytokines, chemokines, and components of the renin-angiotensin system contribute to the renal damage in obstructive uropathies. The authors recently found that urine samples from fetuses with posterior urethral valve have increased levels of inflammatory molecules...
March 10, 2018: Jornal de Pediatria
https://www.readbyqxmd.com/read/29527985/surgical-challenge-in-pediatric-kidney-transplant-lower-urinary-tract-abnormality
#5
Atsushi Aikawa, Masaki Muramatsu, Yusuke Takahashi, Yuko Hamasaki, Junya Hashimoto, Mai Kubota, Youji Hyoudou, Yoshihiro Itabashi, Takeshi Kawamura, Seiichiro Shishido
Lower urinary tract abnormalities are difficult to resolve in pediatric kidney transplant patients. Measure of residual urine, voiding cystourethrography, retrograde urethrography, cystometry, electromyography of urethral external sphincter muscle, urethrometry, and uroflowmetry are the primary methods for evaluation of lower urinary tract abnormalities. Endoscopic resection or ablation of urethral valves is required in children with posterior urethral valve to treat obstruction, but bladder function does not always recover and may deteriorate to end-stage renal failure even after the obstruction is released...
March 2018: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29498072/perinatal-outcomes-of-fetal-lower-urinary-tract-obstruction-after-vesicoamniotic-shunting-using-a-double-basket-catheter
#6
Ba-Da Jeong, Hye-Sung Won, Mi-Young Lee
OBJECTIVES: To evaluate the perinatal survival and renal function of fetuses with lower urinary tract obstruction (LUTO) who underwent vesicoamniotic shunting using a double-basket catheter METHODS: We retrospectively reviewed 32 fetuses with LUTO who underwent vesicoamniotic shunting using a double-basket catheter between 1998 and 2013. RESULTS: Among the 32 fetuses examined, 5 died because of termination of pregnancy, and 2 died in utero. The median gestational age at diagnosis was 15...
March 2, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29496422/bladder-contractility-index-in-posterior-urethral-valve-a-new-marker-for-early-prediction-of-progression-to-renal-failure
#7
M S Ansari, Sandeep Kumar Nunia, Ankur Bansal, Prempal Singh, Virender Sekhon, Dharmveer Singh, Rahul Soni, Priyank Yadav
INTRODUCTION: Posterior urethral valve (PUV) is the most common cause of pediatric end stage renal disease (ESRD), imposing a major health burden on medical community caregivers and adversely affecting the quality of life of patients. Chronic kidney disease (CKD) stage III or estimated GFR of <60 mL/min/1.73 m2 is known to be associated with more adverse renal, cardiovascular, and clinical outcomes. Thus, it is desirable to identify factors predicting the rapid and early progression of disease...
November 22, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29490907/parents-refusing-dialysis-for-a-3-month-old-with-renal-failure
#8
Laurel Willig, Erin Paquette, D Micah Hester, Bradley A Warady, John D Lantos
A 3-month-old boy with failure to thrive was referred to a nephrology clinic after a diagnostic workup for failure to thrive revealed a serum urea nitrogen level of 95 mg/dL and creatinine level of 3.6 mg/dL. A renal ultrasound revealed marked bilateral hydronephrosis with little remaining renal cortex in either kidney. A voiding cystourethrogram revealed evidence of posterior urethral valves. The child had no evident comorbidities. Fulguration of the valves was successfully performed but did not lead to improvement in kidney function...
February 28, 2018: Pediatrics
https://www.readbyqxmd.com/read/29419951/-update-in-posterior-urethral-valves
#9
R M Romero, S Roldán Pérez
No abstract text is available yet for this article.
February 1, 2018: Cirugía Pediátrica: Organo Oficial de la Sociedad Española de Cirugía Pediátrica
https://www.readbyqxmd.com/read/29392366/keyhole-sign-in-posterior-urethral-valve
#10
REVIEW
Eduardo Kaiser Ururahy Nunes Fonseca, Yoshino Tamaki Sameshima
No abstract text is available yet for this article.
February 1, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29229166/holding-water-congenital-anomalies-of-the-kidney-and-urinary-tract-ckd-and-the-ongoing-role-of-excellence-in-plumbing
#11
REVIEW
Lars J Cisek
Congenital anomalies of the kidneys and urinary tracts can result in diminished natal kidney function, possibly through common embryologic pathway disruption or as a result of development taking place in the face of disordered 'post-renal' drainage. Impaired conduit and reservoir function present potential for an ongoing assault leading to further deterioration and progression of chronic kidney disease, a risk that extends to adults with these conditions, even after "correction". The drainage and storage aspects of the urinary system that can impact kidney function are reviewed with attention to correctable or manageable problems including: Bladder dysfunction wherein the low pressure storage of urine is compromised requiring the kidney to work against a pressure gradient, the classic post renal failure problem...
November 2017: Advances in Chronic Kidney Disease
https://www.readbyqxmd.com/read/29225122/dual-pathology-causing-congenital-bladder-outlet-obstruction
#12
Ruth Kwong, Navroop S Johal, Anand Upasani, Anu Paul, Peter Cuckow
Anterior urethral syringocele is an uncommon congenital deformity characterised by cystic dilatation of bulbo-urethral gland ducts and is usually asymptomatic. We present a case on 4-day-old male neonate who presented with bilateral antenatal hydroureteronephrosis and renal impairment and found to have urethral syringocele and posterior urethral valves (PUV).
December 7, 2017: Urology
https://www.readbyqxmd.com/read/29223674/prediction-of-need-for-intervention-in-posterior-urethral-valves-use-of-urine-osmolality
#13
Anna E Wright, Ruth Wragg, Joana Lopes, Andrew Robb, Liam McCarthy
AIM: Renal tubular dysfunction (RTD) causing obligate production of hypoosmolar urine in boys with posterior urethral valves (PUVs) has been described. It is not known how clinically significant this is. We hypothesize that a feedback loop is present in many PUV boys who suffer deterioration of their lower urinary tract (LUT). RTD results in hypoosmolar urine, obligate polyuria, and bladder stretch-injury. The increasing back-pressure worsens RTD, thus exacerbating the injury. Coexisting renal dysplasia and acquired renal scarring exacerbate this...
February 2018: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29198536/infants-with-atypical-presentations-of-alveolar-capillary-dysplasia-with-misalignment-of-the-pulmonary-veins-who-underwent-bilateral-lung-transplantation
#14
Christopher T Towe, Frances V White, R Mark Grady, Stuart C Sweet, Pirooz Eghtesady, Daniel J Wegner, Partha Sen, Przemyslaw Szafranski, Pawel Stankiewicz, Aaron Hamvas, F Sessions Cole, Jennifer A Wambach
OBJECTIVE: To describe disease course, histopathology, and outcomes for infants with atypical presentations of alveolar capillary dysplasia with misalignment of the pulmonary veins (ACDMPV) who underwent bilateral lung transplantation. STUDY DESIGN: We reviewed clinical history, diagnostic studies, explant histology, genetic sequence results, and post-transplant course for 6 infants with atypical ACDMPV who underwent bilateral lung transplantation at St. Louis Children's Hospital...
March 2018: Journal of Pediatrics
https://www.readbyqxmd.com/read/29177193/percutaneous-management-of-a-pyocystic-fistulizing-continent-urinary-diversion
#15
Michael C Phung, Benjamin R Lee, Joel T Funk
Background: Continent diversions have since been performed with increasing frequency since the 1950s, with some providers espousing the use of orthotopic diversions as being the new gold standard. However, patients must be counseled to take great care in the maintenance of their diversions because of complications such as metabolic abnormalities, pouch stones, and mucus retention. Case Report: A 21-year-old male with a history of posterior urethral valves underwent a continent catheterizable diversion as a child...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/29159472/current-strategies-to-predict-and-manage-sequelae-of-posterior-urethral-valves-in-children
#16
Aniruddh V Deshpande
Posterior urethral valves (PUV) constitute a significant urological cause of chronic kidney disease (CKD) in children. The condition is characterised by the unique pathophysiology of the evolution of bladder dysfunction after relief of obstruction, which contributes to CKD. Improvements in prenatal diagnosis followed by selective foetal intervention have not yet produced improvement in long-term renal outcomes, although better patient selection may alter this in the future. Proactive management with surveillance, pharmacotherapy, timed voiding, double voiding, and/or assisted bladder-emptying, is being increasingly offered to those with severe bladder dysfunction and has the potential of reducing the burden of renal disease...
November 20, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/29110519/caring-for-infants-with-posterior-urethral-valves-a-qualitative-study-of-parents-experiences
#17
Sarah Marokakis, Nadine A Kasparian, Sean E Kennedy
This study aimed to explore the perspectives and experiences of parents caring for an infant with posterior urethral valves (PUVs). Eight parents participated in a semi-structured, individual telephone interview, with qualitative data collected and analysed thematically using NVivo11 software. Two main themes emerged as interconnecting aspects of parents' experiences: (1) trying to face the challenges and (2) learning to cope. Parents felt challenged by the need to attend to their child's medical care, while developing a bond with their baby, trying to maintain positivity for their child's future and managing the impact of the condition on their family...
January 1, 2017: Journal of Child Health Care: for Professionals Working with Children in the Hospital and Community
https://www.readbyqxmd.com/read/29082641/risk-factors-for-urological-complications-following-living-donor-renal-transplantation-in-children
#18
Mohammed S ElSheemy, Waleed Ghoneima, Waseem Aboulela, Kareem Daw, Ahmed M Shouman, Ahmed I Shoukry, Sherif Soaida, Doaa M Salah, Hafez Bazaraa, Fatina I Fadel, Ahmed A Hussein, Enmar Habib, Ismail R Saad, Mohamed El Ghoneimy, Hany A Morsi, Mohammed A Lotfi, Hesham Badawy
The aim of this study was to detect possible risk factors for UC and UTI following pediatric renal Tx and effect of these complications on outcome. One hundred and eight children who underwent living donor Tx between 2009 and 2015 were retrospectively included. Extraperitoneal approach was used with stented tunneled extravesical procedure. Mean recipient age was 9.89 ± 3.46 years while mean weight was 25.22 ± 10.43 kg. Seventy-three (67.6%) recipients were boys while 92 (85.2%) were related to donors...
October 29, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/29071146/posterior-urethral-valves-impact-of-low-birth-weight-and-preterm-delivery-on-the-final-renal-outcome
#19
Osama M Sarhan
OBJECTIVE: To investigate the relationship between low birth weight (LBW; <2.5 kg) and preterm delivery (<37 weeks gestational age) and final renal outcome in infants with posterior urethral valves (PUVs), emphasising the risk factors for the development of chronic kidney disease (CKD). PATIENTS AND METHODS: A retrospective review was performed for all infants with PUVs who were treated between 1990 and 2010. In all, 52 infants were identified to have LBW and/or delivered preterm (Group 1)...
June 2017: Arab Journal of Urology
https://www.readbyqxmd.com/read/29067525/hypernatremia-and-acute-pancreatitis-in-chronic-kidney-disease-back-to-the-salt-mines-questions
#20
Marie de Tersant, Thérésa Kwon, Marie-Alice Macher, Anne Maisin, Georges Deschênes, Olivier Niel
BACKGROUND: Acute pancreatitis can be a life-threatening complication in patients with chronic kidney disease (CKD), especially in kidney transplant recipients. CASE DIAGNOSIS/TREATMENT: The patient was 7 years old when he received renal transplantation for CKD secondary to posterior urethral valves. Two years later, he presented with severe necrotizing pancreatitis (Ranson's score 5, Balthazar's score 8). Viral and genetic testing came back negative; pancreatitis was attributed to the patient's treatments (prednisone, trimethoprim-sulfamethoxazole, and everolimus)...
October 24, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
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