10,463 results match your criteria Vesicoureteral Reflux

Recurrent Febrile Urinary Tract Infections in a Five-Year-Old Girl.

Cureus 2021 Apr 11;13(4):e14412. Epub 2021 Apr 11.

Department of Urology, Medical University of Łódź, Łódź, POL.

Urinary tract infections (UTIs) are one of the most common bacterial infections of childhood and in pediatric urology. Medical history, examination findings, and clinical course usually vary with the patient's age. Hence, there are no specific clinical features that are strictly associated with UTI in infants or children. Read More

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Contrast-enhanced ultrasound of transplant organs - liver and kidney - in children.

Pediatr Radiol 2021 May 12. Epub 2021 May 12.

Department of Radiology and Medical Imaging, University of Virginia Children's Hospital, Charlottesville, VA, USA.

Ultrasound (US) is the first-line imaging tool for evaluating liver and kidney transplants during and after the surgical procedures. In most patients after organ transplantation, gray-scale US coupled with color/power and spectral Doppler techniques is used to evaluate the transplant organs, assess the patency of vascular structures, and identify potential complications. In technically difficult or inconclusive cases, however, contrast-enhanced ultrasound (CEUS) can provide prompt and accurate diagnostic information that is essential for management decisions. Read More

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Heparin coating in biodegradable ureteral stents does not decrease bacterial colonization-assessment in ureteral stricture endourological treatment in animal model.

Transl Androl Urol 2021 Apr;10(4):1700-1710

Jesús Usón Minimally Invasive Surgery Centre, Cáceres, Spain.

Background: We assessed an antireflux biodegradable heparin-coated ureteral stent (BraidStent-H) in an animal model comparative study after endoscopic treatment of ureteral strictures.

Methods: A total of 24 female pigs underwent initial endoscopic, nephrosonographic, and contrast fluoroscopy assessment of the urinary tract. Afterward, unilateral laparoscopic ureteral stricture model was performed. Read More

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Clinical management of vesicoureteral reflux with respect to EAU Guidelines: A multicenter study.

Int J Clin Pract 2021 May 9:e14339. Epub 2021 May 9.

Department of Pediatric Urology, Gazi University School of Medicine, Ankara.

Purpose: We designed a multicenter, retrospective study to investigate the current trends in initial management of reflux with respect to European Association of Urology (EAU) Guidelines in Urology clinics of our country.

Materials And Methods: The study group consisted of 1988 renal units (RU) of 1345 patients treated surgically due to vesicoureteral reflux (VUR) (between years 2003-2017 in 9 different institutions. Patients were divided into 2 groups according to time of initial treatment and also grouped according to risk factors by "EAU guidelines on VUR". Read More

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[Diagnosis and surgical treatment of hypospadia in girls].

A E Soloviev

Urologiia 2021 May(2):78-81

Ryazan State Medical University, Ryazan, Russia.

Aim: To suggest new method of surgical correction of hypospadias in girls.

Materials And Methods: For 50 years under our supervision there were 220 girls diagnosed with hypospadias of various forms. In the diagnosis used anamnesis, examination, catheterization and cystoscopy of the bladder, vaginoscopy, ultrasound and X-ray research methods. Read More

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Contrast-enhanced voiding urosonography in the assessment of vesical-ureteral reflux: the time has come.

Radiol Med 2021 May 5. Epub 2021 May 5.

Section of Radiological Sciences, Department of Biomedical, Dental Sciences and Morphological and Functional Imaging, University of Messina, "G. Martino" Policlinic, Via Consolare Valeria 1, 98100, Messina, Italy.

Vesicoureteral reflux (VUR) is a pathological condition contradistinguished by monolateral or bilateral retrograde flow of urine from the bladder to the ureter and to the kidney. If not properly recognized and treated, VUR can potentially be associated to several complications such as recurrent infections and possible secondary scars with Chronic Kidney Disease (CKD). Furthermore, it represents an important risk factor for nephrovascular hypertension. Read More

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Treatment of Vesicoureteral Reflux Detected After Renal Transplant in Pediatric Patients: A Single-Center Experience.

Exp Clin Transplant 2021 May 6. Epub 2021 May 6.

From the Department of Urology, Akdeniz University Faculty of Medicine, Antalya, Turkey.

Objective: In children who undergo renal transplant, vesicoureteral reflux on the transplanted kidney is a serious complication that may result in organ loss. In this study, we aimed to evaluate the results of endoscopic and open surgical techniques in the treatment of patients with recurrent urinary tract infections and vesicoureteral reflux after renal transplant.

Material And Methods: The files of pediatric patients who underwent renal transplant in our hospital between January 2016 and January 2019 were evaluated retrospectively. Read More

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Assessment of the Grades of Vesicoureteral Reflux in Stented Ureters: An Experimental Study.

Urol Int 2021 May 5:1-6. Epub 2021 May 5.

Jesús Usón Minimally Invasive Surgery Centre, Cáceres, Spain.

Introduction: The aim of this experimental study is to assess, in a porcine model, the onset and grades of vesicoureteral reflux associated with ureteral stents.

Methods: Twenty-four female porcine models were used. A 4. Read More

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Global research productivity and publication trends in vesicoureteral reflux: a bibliometric analysis.

Minerva Pediatr (Torino) 2021 May 5. Epub 2021 May 5.

Department of Urology, Faculty of Medicine, Hitit University, Çorum, Turkey.

Background: To make a holistic, comprehensive analysis of scientific publications on the subject of vesicoureteral reflux (VUR) between 1980 and 2019 using bibliometric methods, and by determining global research trends, to establish an important resource for future studies.

Methods: All the scientific documents were accessed which had the key word "vesicoureteral reflux" in the "Title" section in the Web of Science (WoS) database between 1980 and 2019. Using bibliometric methods, articles related to VUR (access date:20. Read More

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Is endothelial glycocalyx damage a cause of renal scarring in vesicoureteral reflux with febrile urinary tract infection?

Nephrol Ther 2021 Apr 30. Epub 2021 Apr 30.

Hacettepe University, School of medicine, Department of urology, Turkey.

Introduction: Endothelial glycocalyx is a luminal layer which can be damaged by inflammatory agents or pathogens. The endothelial glycocalyx damage is thought to have a role in the formation of renal scars in children who have febrile urinary tract infection and vesicoureteral reflux. This study aimed to compare the blood levels of endothelial glycocalyx components heparan sulfate and Syndecan-1 in children with and without renal scarring due to vesicoureteral reflux-associated febrile urinary tract infection. Read More

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Surgical technique of uretero-ileal anastomosis in patients with bilateral duplex ureters undergoing radical cystectomy and ileal conduit urinary diversion: Initial experience.

Acta Chir Belg 2021 Apr 29:1-15. Epub 2021 Apr 29.

Urologist, Department of Urology, Clinical centre of Montenegro, Ljubljanska bb, Podgorica, Montenegro.

Background: We present a simple technique for construction of wide ureteral plate, consisting of four ureters, incorporated in ureteroileal anastomosis of ileal conduit urinary diversion.

Methods: We retrospectively reviewed the charts of six cases of ureteral duplication (five bilateral and one unilateral) and muscle-invasive bladder cancer, treated with radical cystectomy and ileal conduit diversion, at our institution from 2015 to 2020. Briefly, our technique includes construction of wide ureteral plate, consisting of four ureters from two separate ureteral units, after previous construction of right and left ureteral plates for each unit, according to the standard Wallace technique. Read More

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Video-Based Coaching: An Efficient Learning and Teaching Modality for Pediatric Surgery and Pediatric Urology Training Program.

J Laparoendosc Adv Surg Tech A 2021 May 26;31(5):594-597. Epub 2021 Apr 26.

Pediatric Surgery Unit, Department of Translational Medical Science, University of Naples "Federico II," Naples, Italy.

The development of integrated multimedia operating rooms has made possible to record surgical procedures mainly in minimally invasive surgery (MIS) and robotic surgery. This modality of video storage allows the trainees to study surgical procedures based on video analysis. The aim of this study is to compare two learning methods of surgical procedures, operative textbooks and video-based coaching, in a group of 10 pediatric surgery trainees. Read More

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Antireflux endoscopic injection therapy in post-pubertal patients via techniques adopted for the dilated ureteral orifice: a retrospective single-center study.

BMC Urol 2021 Apr 24;21(1):70. Epub 2021 Apr 24.

Department of Pediatric Urology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, 467-8601, Japan.

Background: To investigate the efficacy and safety of endoscopic injection therapy for vesicoureteral reflux in post-pubertal patients with dilated ureteral orifice via modified hydrodistension implantation techniques.

Methods: We retrospectively reviewed medical records including operational procedure and clinical course of all consecutive patients over 12 years old with a history of injection therapy. Endoscopic injection of dextranomer/hyaluronic acid copolymer was performed under hydrodistension implantation technique with some modifications in order to inject through dilated ureteral orifice align with the intramural ureter. Read More

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Contrast-enhanced voiding urosonography for the diagnosis of vesicoureteral reflux and intrarenal reflux: a comparison of diagnostic performance with fluoroscopic voiding cystourethrography.

Ultrasonography 2021 Feb 10. Epub 2021 Feb 10.

Department of Radiology, Seoul National University Hospital, Seoul, Korea.

Purpose: This study evaluated the diagnostic performance of contrast-enhanced voiding urosonography (ce-VUS) using a second-generation ultrasound contrast agent for the diagnosis of vesicoureteral reflux (VUR) and intrarenal reflux (IRR), and compared it with that of standard fluoroscopic voiding cystourethrography (VCUG).

Methods: Thirty-two consecutive children from April to September 2019 were included in this study. ce-VUS and VCUG were performed simultaneously by two operators with intravesical infusion of a mixture of ultrasound contrast medium, iodinated contrast medium and water. Read More

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February 2021

Management of Vesicoureteral Reflux: What Have We Learned Over the Last 20 Years?

Front Pediatr 2021 31;9:650326. Epub 2021 Mar 31.

Pediatric Urology, Children's Healthcare of Atlanta and Emory University School of Medicine, Atlanta, GA, United States.

Vesicoureteral reflux (VUR) is associated with increased risks of urinary tract infection, renal scarring and reflux nephropathy. We review advancements over the last two decades in our understanding and management of VUR. Over time, the condition may resolve spontaneously but it can persist for many years and bladder/bowel dysfunction is often involved. Read More

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Robot-assisted laparoscopic ureteral reimplant: A single-center experience.

Indian J Urol 2021 Jan-Mar;37(1):42-47. Epub 2021 Jan 1.

Department of Urology, Sir Ganga Ram Hospital, New Delhi, India.

Introduction: Open ureteral reimplant has been the gold standard for management of lower ureteric strictures. With the widespread acceptance of robotic surgery, robotic-assisted laparoscopic ureteral reimplant (RALUR) is becoming the preferred choice for performing ureteral reimplant. We present our single-institution and single-surgeon experience of performing RALUR. Read More

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January 2021

Can extended upper pole ureterectomy prevent ureteral stump syndrome after proximal approach for duplex kidneys?

Int Braz J Urol 2021 Jul-Aug;47(4):821-826

Unidade de Urologia Pediátrica, Divisão de Urologia, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo - FMUSP, SP, Brasil.

Introduction: Symptomatic duplex kidneys usually present with recurrent urinary tract infection due to ureteral obstruction (megaureter, ureterocele or ectopic ureter) and/or vesicoureteral reflux. Upper-pole nephrectomy is a widely accepted procedure to correct symptomatic duplex systems with poor functioning moieties, also known as upper or proximal approach. The distal ureteral stump syndrome (DUSS) can be a late complication of this approach. Read More

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Renal Transplant Hydroureteronephrosis as a Manifestation of Rejection: An Under-Recognized Entity?

Case Rep Nephrol Dial 2021 Jan-Apr;11(1):87-94. Epub 2021 Mar 15.

Division of Pediatric Nephrology, Department of Pediatrics, University of Florida, Gainesville, Florida, USA.

Hydroureteronephrosis (HUN) of the renal transplant (RT) can be obstructive or non-obstructive, refluxing or non-refluxing, and can cause allograft dysfunction. HUN of the RT as a manifestation of rejection is uncommon and has not been described in children. We describe two pediatric RT recipients who presented with late-onset HUN, 5 and 10 years after transplantation. Read More

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[The opportunities of pneumovesicoscopic approach for correction of disorders of vesicoureteral junction in children].

Urologiia 2021 Mar(1):95-102

N.A. Lopatkin Research Institute of Urology and Interventional Radiology branch of the National Medical Research Radiological Center, Moscow, Russia.

Background: pneumovesicoscopic approach gives new possibilities for endovideosurgical correction of congenital ureteral and bladder pathology.

Aim: To increase the efficiency of ureteral reimplantation in patients with vesicoureteral reflux (VUR), obstructive megaureter and bladder pathology by using pneumovesicoscopic access.

Materials And Methods: For the period 2014 - 2020 a total of 52 children aged from 10 months up to 15 years (median 2. Read More

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Bilateral pelvic kidneys with upper pole fusion and malrotation: a  case report and  review of the literature.

J Med Case Rep 2021 Apr 5;15(1):181. Epub 2021 Apr 5.

Department of Radiology, Wad-Medani Teaching Hospital, Wad Madani, Sudan.

Background: The incidence of ectopic kidneys is 1:12,000 clinically and 1:900 postmortem. Patients with pelvic mal-rotated kidneys are more susceptible to recurrent urinary tract infections, recurrent renal stones, and renal injury. Fusion of the kidney lower poles is relatively common compared to other types of renal anomalies. Read More

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Emerging contrast-enhanced ultrasound applications in children.

Pediatr Radiol 2021 Apr 1. Epub 2021 Apr 1.

Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd., Philadelphia, PA, 19104, USA.

Ultrasound contrast agent (UCA) use in radiology is expanding beyond traditional applications such as evaluation of liver lesions, vesicoureteral reflux and echocardiography. Among emerging techniques, 3-D and 4-D contrast-enhanced ultrasound (CEUS) imaging have demonstrated potential in enhancing the accuracy of voiding urosonography and are ready for wider clinical adoption. US contrast-based lymphatic imaging has been implemented for guiding needle placement in MR lymphangiography in children. Read More

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Contrast-enhanced voiding urosonography, part 1: vesicoureteral reflux evaluation.

Pediatr Radiol 2021 Mar 31. Epub 2021 Mar 31.

Pediatric Ultrasound Center, Thessaloniki, Greece.

Contrast-enhanced voiding urosonography (ceVUS) is a well-established, sensitive and safe ultrasound (US) modality for detecting and grading vesicoureteral reflux (VUR) and urethral imaging in children. Nearly three decades of remarkable advances in US technology and US contrast agents have refined ceVUS's diagnostic potential. The recent approval of Lumason/SonoVue in the United States, Europe and China for pediatric intravesical applications marked the beginning of a new era for this type of contrast US imaging. Read More

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Risk factors for kidney scarring and vesicoureteral reflux in 421 children after their first acute pyelonephritis, and appraisal of international guidelines.

Pediatr Nephrol 2021 Mar 23. Epub 2021 Mar 23.

Department of Pediatric and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark.

Background: Acute pyelonephritis (AP) is a common bacterial infection in childhood. Follow-up guidelines on these children are controversial. This study aimed to identify risk factors for kidney scarring and vesicoureteral reflux (VUR). Read More

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Correlation of anorectal malformation complexity and associated urologic abnormalities.

J Pediatr Surg 2021 Feb 25. Epub 2021 Feb 25.

Center for Colorectal and Pelvic Reconstruction, Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH 43205, United States.

Background: Patients with anorectal malformations (ARM) commonly have associated urologic anomalies. Few large studies exist to accurately characterize the incidence or associations between severity of malformation and urologic diagnosis. The purpose of our study was to determine the incidence of urologic diagnoses in a large cohort of children with ARM and evaluate for any correlation between severity of ARM and the incidence and number of associated urologic diagnoses. Read More

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February 2021

Comparison of Subureteral Endoscopic Injection of Dextranomer/Hyaluronic Acid and Lich-Gregoir Ureteral Reimplantation in the Treatment of Pediatric Primary Vesicoureteral Reflux: A Prospective Randomized Study.

J Laparoendosc Adv Surg Tech A 2021 Mar 22. Epub 2021 Mar 22.

Department of Urology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt.

The gold standard of surgical intervention of vesicoureteral reflux (VUR) is open ureteral reimplantation with high success and low complication rates. However, in recent years, endoscopic injection, dextranomer/hyaluronic acid (Dx/HA), has become an effective therapy for VUR. It is noted that limited prospective randomized trials compare the different surgical techniques of especially endoscopic injection versus open procedures. Read More

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Predictive score for vesicoureteral reflux in children with a first febrile urinary tract infection.

Int J Urol 2021 05 20;28(5):573-577. Epub 2021 Mar 20.

Panyananthaphikkhu Chonprathan Medical Center, Srinakharinwirot University, Nonthaburi, Thailand.

Objective: To develop a simple score for predicting vesicoureteral reflux after a first febrile urinary tract infection in children.

Methods: A retrospective cohort study was conducted for a 12-year period (January 2008 to December 2019), including patients aged <72 months who underwent renal ultrasonography and voiding cystourethrography after a first febrile urinary tract infection. Patients with a history of antenatal hydronephrosis were excluded. Read More

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Outcomes of a single trigone-only vs. 20 trigone-sparing injections of OnabotulinumtoxinA for refractory overactive bladder (OAB).

Int Urol Nephrol 2021 Mar 19. Epub 2021 Mar 19.

Institute for Female Pelvic Medicine, Allentown, PA, USA.

Purpose: To compare the safety and durability of a single intravesical trigonal-only versus 20 trigone-sparing injections of OnabotulinumtoxinA (BTA) for refractory OAB.

Methods: A chart review of all idiopathic OAB patients treated with BTA from January 2016 to December 2018 was performed. Outcomes measures included: inter-injection interval, post-void residual (PVR), urinary tract infections (UTI), urinary retention requiring catheterization, and procedure time (min). Read More

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Laser-puncture of the ureterocele in neonatal patients significantly decreases an incidence of de novo vesico-ureteral reflux than electrosurgical incision.

J Pediatr Urol 2021 Mar 3. Epub 2021 Mar 3.

Department of Pediatris, University Hospital of Split, Split, Croatia; Department of Pediatris, University of Split, School of Medicine, Split, Croatia.

Introduction: Endoscopic laser-puncture or electrosurgical incision are the most commonly used minimaly invasive approaches for the treatment of the ureterocele. Both techniques are mainly successful in decompressing of ureteroceles, but the consequence of such treatment may be formation of de novo vesicoureteral reflux and febrile urinary tract infection which could impact the final results.

Objective: To compare outcomes of treatment of two endoscopic techniques used in management of neonatal patients with intravesical ureterocele. Read More

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Intrarenal Reflux in the Light of Contrast-Enhanced Voiding Urosonography.

Front Pediatr 2021 2;9:642077. Epub 2021 Mar 2.

University Hospital Split, Split, Croatia.

The aim of this study was to analyze the incidence of intrarenal reflux (IRR) among vesicoureteral refluxes (VURs), diagnosed by contrast-enhanced voiding urosonography (ceVUS), to define VURs which are positive to IRR and their locations in the kidney. Seventy patients with VURs, including 103 uretero-renal units (URUs) with VURs of grades II-V (37 URUs were excluded because of renal anomalies or absence of VUR) were examined with ceVUS due to recurrent febrile UTI or first febrile UTI accompanied by abnormalities on renal ultrasonography. Patients were examined on GE Logiq S8 ultrasound machine, using second generation of ultrasound contrast agent. Read More

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Hypocalcemia not related to chronic kidney disease: Questions.

Pediatr Nephrol 2021 Mar 17. Epub 2021 Mar 17.

Department of Pediatrics, University of Health Sciences, Gülhane School of Medicine, Ankara, Türkiye.

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