2,896 results match your criteria Ureteropelvic Junction Obstruction


Outcomes after Robotic-Assisted Pyeloplasty in Patients Presenting with Pain Versus Non-pain Presenting Symptoms.

Urology 2018 Dec 5. Epub 2018 Dec 5.

Section of Urology and Renal Transplantation, Virginia Mason Medical Center, 1100 9th Ave, C-7, URO, Seattle, WA 98101. Electronic address:

Objective: To assess the impact of presenting symptom or incidental finding on symptomatic and radiographic outcomes after robotic-assisted pyeloplasty (RAP).

Methods: We retrospectively reviewed the records of 143 patients at our institution who received pyeloplasty from 2001-2017. Patients without both pre and postoperative radiographic data were excluded. Read More

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December 2018

A modification with threading cannula needle-assisted 4-point suspension fixation for retroperitoneal laparoscopic pyeloplasty in children with ureteropelvic junction obstruction: a cohort study in single center.

Int Urol Nephrol 2018 Dec 5. Epub 2018 Dec 5.

Department of Urology, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe Road 600, Guangzhou, 510630, Guangdong, China.

Purpose: To evaluate the effect and safety of modifying a threading cannula needle-assisted suspension fixation in retroperitoneal laparoscopic dismembered pyeloplasty (LDP) for children with congenital ureteropelvic junction obstruction (UPJO).

Methods: Between December 2012 and December 2017, 45 children (< 14 years of age) with congenital UPJO were divided into two groups. In Group A, children underwent conventional "no-suspension fixation" LDP; and in Group B, "4-point suspension fixation" LDP was performed to lower difficulties and shorten operative time. Read More

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December 2018

Pancake kidney: A case report.

Urol Case Rep 2019 Mar 21;23:19-20. Epub 2018 Nov 21.

Departement of Urology, La Rabta Hospital, Tunisia.

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Outcomes for Patients Undergoing Ambulatory Percutaneous Nephrolithotomy.

J Endourol 2018 Nov 29. Epub 2018 Nov 29.

Montefiore Medical Center, Urology , 1200 waters place , Bronx, New York, United States , 10461 ;

Introduction Multiple studies have concluded that ambulatory percutaneous nephrolithotomy (aPCNL) is safe. However, selection criteria remain vague and no investigators have assessed the practicality of using various post-procedural drainage strategies in the ambulatory setting. In this study we establish a set of inclusion and exclusion criteria for aPCNL, compare outcomes between aPCNL patients and those admitted following PCNL, and incorporate a variety of "exit" strategies including double-J stent, ureteropelvic junction (UPJ) stent and totally tubeless techniques. Read More

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November 2018

Quantitative Urinary Proteome Reveals Potential Biomarkers for Ureteropelvic Junction Obstruction.

Proteomics Clin Appl 2018 Nov 24:e1800101. Epub 2018 Nov 24.

Department of Pediatric Urology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 200092, Shanghai, China.

Purpose: Ureteropelvic junction obstruction (UPJO) is a common obstructive disease. To investigate useful urinary biomarkers in UPJO children, the urinary proteome in UPJO infants is analyzed and it is compared with normal controls.

Experimental Design: A tandem mass tag (TMT)-based quantitative proteomics study is performed to analyze the proteome of bladder urine (BU) and pelvis urine (PU) from unilateral UPJO infants with differential renal function less than 40% and they are compared with normal control urine (CON). Read More

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November 2018
1 Read

A Randomized Control Trial Comparing Outcome after Stented and Nonstented Anderson-Hynes Dismembered Pyeloplasty.

J Indian Assoc Pediatr Surg 2018 Oct-Dec;23(4):186-191

Department of General Surgery, Government Medical College, Nagpur, Maharashtra, India.

Aim: The aim of the study was to compare the efficacy and postoperative complications of stented and nonstented open pediatric dismembered pyeloplasty for ureteropelvic junction (UPJ) obstruction.

Settings And Design: A balanced, parallel group, prospective randomized controlled trial comparing stented and nonstented Anderson-Hynes Dismembered Pyeloplasty.

Subjects And Methods: It included 42 children who required Anderson-Hynes dismembered pyeloplasty for UPJ obstruction (UPJO). Read More

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November 2018
2 Reads

Late Presentation of a 9 mm Bullet in the Ureteropelvic Junction Causing Acute Renal Failure in a Solitary Functioning Left Kidney.

J Endourol Case Rep 2018 1;4(1):173-175. Epub 2018 Oct 1.

Heart of Florida Regional Medical Center, Davenport, Florida.

Urinary obstruction as a result of a late complication of a gunshot wound is rarely reported. Bullet shell fragments may migrate from their initial location into an area causing obstruction. In this study, we present a case of a left renal calculus surrounding a 9 mm gun shell in a patient with a solitary functioning left kidney. Read More

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October 2018
1 Read

Elevated urinary lipocalin-2, interleukin-6 and monocyte chemoattractant protein-1 levels in children with congenital ureteropelvic junction obstruction.

J Pediatr Urol 2018 Oct 17. Epub 2018 Oct 17.

Xinjiang Institute of Pediatrics, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China. Electronic address:

Introduction: In children with congenital ureteropelvic junction obstruction (UPJO), urinary biomarkers could assist in the diagnosis of renal damage or kidneys at risk for damage. Urinary levels of interleukin-6 (IL6), neutrophil gelatinase-associated lipocalin (LCN2), monocyte chemoattractant protein-1 (MCP1), and transforming growth factor-β1 (TGFB1) proteins have been correlated with renal damage in several contexts. Whether they might be useful non-invasive biomarkers of obstructive nephropathy due to unilateral and bilateral congenital UPJO was tested. Read More

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October 2018
5 Reads

Hydronephrosis severity score: an objective assessment of hydronephrosis severity in children-a preliminary report.

J Pediatr Urol 2018 Oct 11. Epub 2018 Oct 11.

Department of Radiology, Sri Ramachandra Medical College and Research Institute, Porur, Chennai 600116, India.

The main challenge in the management of antenatally diagnosed hydronephrosis and ureteropelvic junction obstruction (UPJO) is to differentiate the one that is likely to resolve from the pathological one. In this study, a new hydronephrosis severity score (HSS), combining ultrasonographic and renographic parameters, has been developed. Hydronephrosis severity score was analyzed with regard to its usefulness in assessing the severity of UPJO, postoperative resolution, and interobserver reliability. Read More

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October 2018
3 Reads

Laparoscopic versus open pyeloplasty: a multi-institutional prospective study.

Cent European J Urol 2018 20;71(3):342-345. Epub 2018 Aug 20.

Department of Urology and Kidney Transplantation, Martin-Luther University, Halle (Saale), Germany.

Introduction: To prospectively compare the perioperative and functional outcomes of laparoscopic (LP) and open pyeloplasty (OP) in three academic institutions.

Material And Methods: Between September 2012 and September 2016, 102 patients with primary uteropelvic junction obstruction (UPJO) underwent pyeloplasty (51 LP and OP for the other 51 patients). Demographic data, perioperative parameters, including operative time, estimated blood loss, complications, length of hospital stay, and functional outcome were compared, and SF-8 Health Survey scoring was recorded for each group. Read More

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August 2018
2 Reads

Percutaneous retropelvic endopyelotomy for treatment of ureteropelvic junction obstruction.

Urol Ann 2018 Oct-Dec;10(4):358-362

Department of Urology, College of Medicine, Imam Abdulrahaman Bin Faisl University, Dammam, Saudi Arabia.

Purpose: A new minimally invasive approach for endopyelotomy for the treatment of ureteropelvic junction obstruction (UPJO) is described. The results are compared with those of other lines of treatment.

Materials And Methods: A total of 39 patients with UPJO underwent percutaneous retropelvic endopyelotomy. Read More

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November 2018
4 Reads

Redo laparoscopic pyeloplasty among children: A systematic review and meta-analysis.

Urol Ann 2018 Oct-Dec;10(4):347-353

Department of Surgery, Division of Urology, College of Medicine and King Saud University Medical City, King Saud University, Riyadh, Kingdom of Saudi Arabia.

Laparoscopic pyeloplasty (LP) is more beneficial than open procedures. However, studies on laparoscopic management of cases with secondary ureteropelvic junction obstruction (SUPJO) after previous failed pyeloplasty in the pediatric population are lacking. This meta-analysis aimed to assess the difference between redo LP (RLP) and redo open pyeloplasty (ROP) for children with SUPJO, focusing on certain criteria. Read More

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November 2018
2 Reads

Value of urinary carbohydrate antigen 19-9 to predict failure of conservative management in children with ureteropelvic junction obstruction.

J Pediatr Surg 2018 Oct 2. Epub 2018 Oct 2.

Pediatric Urology and Regenerative Medicine Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran. Electronic address:

Objective: To assess the role of urinary carbohydrate antigen 19-9 (CA19-9) measurement in determining optimal management of ureteropelvic junction obstruction (UPJO) and predicting failure of conservative management.

Patients And Methods: Children with UPJO diagnosed between December 2012 and April 2015 were included. Depending on clinical and para-clinical findings, patients were divided into three groups: Group 1 consisted of patients who were considered for non-operative management with improvement of the condition during the course of follow-up. Read More

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October 2018
3 Reads
1.310 Impact Factor

Potential Novel Biomarkers of Obstructive Nephropathy in Children with Hydronephrosis.

Dis Markers 2018 13;2018:1015726. Epub 2018 Sep 13.

Department of Pediatric Nephrology, Medical University of Lublin, Gębali 6, 20-093 Lublin, Poland.

Obstructive nephropathy (ON) secondary to the congenital hydronephrosis (HN) is one of the most common causes of chronic kidney disease in children. Neither currently used imaging techniques nor conventional laboratory parameters are sufficient to assess the onset and outcome of this condition; hence, there is a need to prove the usefulness of newly discovered biomarkers of kidney injury in this respect. The purpose of the study was to assess the urinary excretion of alpha-GST, pi-GST, NGAL, and KIM-1 and the serum level of NGAL in children with congenital unilateral hydronephrosis secondary to ureteropelvic junction obstruction. Read More

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September 2018
8 Reads

Pilot study on renal magnetic resonance diffusion tensor imaging: are quantitative diffusion tensor imaging values useful in the evaluation of children with ureteropelvic junction obstruction?

Pediatr Radiol 2018 Oct 8. Epub 2018 Oct 8.

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

Background: Ureteropelvic junction (UPJ) obstruction is a common cause of renal injury in children. Indications for surgery are still controversial. Currently, there is no threshold to differentiate patients with suspected UPJ obstruction requiring surgery from the ones that do not, or to predict renal outcome after surgery. Read More

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October 2018
1 Read

Transperitoneal laparoscopic nephrectomy for giant hydronephrotic non-functioning kidney.

Authors:
Badr Alharbi

Urol Case Rep 2018 Nov 24;21:110-112. Epub 2018 Sep 24.

College of Medicine, Qassim University, Saudi Arabia.

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November 2018
2 Reads

Changes of arterial pressure following relief of obstruction in adults with hydronephrosis.

Ups J Med Sci 2018 Oct 8:1-9. Epub 2018 Oct 8.

e Department of Physiology and Pharmacology , Karolinska Institutet , Stockholm , Sweden.

Background: As much as 20% of all cases of hypertension are associated with kidney malfunctions. We have previously demonstrated in animals and in pediatric patients that hydronephrosis causes hypertension, which was attenuated by surgical relief of the ureteropelvic junction (UPJ) obstruction. This retrospective cohort study aimed to investigate: (1) the proposed link between hydronephrosis, due to UPJ obstruction, and elevated arterial pressure in adults; and (2) if elevated blood pressure in patients with hydronephrosis might be another indication for surgery. Read More

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October 2018
7 Reads

Non-contrast-enhanced magnetic resonance angiography for detecting crossing renal vessels in infants and young children: comparison with contrast-enhanced angiography and surgical findings.

Pediatr Radiol 2018 Oct 3. Epub 2018 Oct 3.

Radiology Department, IRCCS Istituto Giannina Gaslini, University of Genoa, Largo Gaslini 5, 16147, Genoa, Italy.

Background: Knowing that ureteropelvic junction obstruction is due to a crossing renal vessel is essential in choosing the appropriate surgical treatment.

Objective: To evaluate the diagnostic accuracy of non-contrast magnetic resonance (MR) angiography in identifying crossing renal vessels in children younger than 4 years old with unilateral hydronephrosis.

Materials And Methods: A retrospective review of preoperative MR urography of children with unilateral hydronephrosis was conducted by two independent readers. Read More

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October 2018
2 Reads

Manifestation of intraoperative anaphylactic shock along with latex allergy:a pediatric case report.

J Med Invest 2018 ;65(3.4):292-295

Department of Pediatrics, Tokushima University.

Natural rubber latex (NRL) allergy is one of the most important causes of severe anaphylaxis during medical intervention. We report a pediatric case of latex allergy with multiple surgical histories. A 12-year-old girl developed anaphylactic shock during the pyeloplasty for ureteropelvic junction restenosis. Read More

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January 2018
4 Reads

Retrograde Intrarenal Surgery Through an Incision of the Ureter as a Good Treatment Option for Large Ureteropelvic Impacted Stones in Transplanted Kidneys.

Exp Clin Transplant 2018 Sep 25. Epub 2018 Sep 25.

From the Insubria University Department of Emergency and Transplant Surgery, Ospedale di Circolo, Varese, Italy.

Urolithiasis is a rare complication after kidney transplant. Over the years, treatment of kidney stones has evolved radically, but a standard approach for transplanted kidneys has not yet been defined. Here, we present a 69-year-old male patient who received successful treatment of nephrolithiasis of the transplanted kidney. Read More

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September 2018
1 Read

Mini-laparoscopic pyeloplasty in adults: Functional and cosmetic results.

Urol J 2018 Nov 17;15(6):339-343. Epub 2018 Nov 17.

Harran University Faculty of Medicine, Department of Urology.

Purpose: The study objective was to evaluate the safety and efficacy of mini-laparoscopic pyeloplasty (mLP) in an adult population and to demonstrate the functional and cosmetic results.

Methods: Data for 29 patients (19 men and 10 women) undergoing mLP for ureteropelvic junction obstruction (UPJO) from May 2014 to December 2016 in Turkey were collected in this prospective study. Inclusion criteria were age ? 18 years, body mass index (BMI) ? 30 kg/m2 and primary UPJO, and no previous surgery on the affected kidney or previous abdominal surgery. Read More

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November 2018
2 Reads
0.710 Impact Factor

Head-to-Head Comparison of Modified Laparoscopic Pyeloplasty and Robot-Assisted Pyeloplasty for Ureteropelvic Junction Obstruction in China.

Urol Int 2018 19;101(3):337-344. Epub 2018 Sep 19.

Department of Urology, Peking University First Hospital, Institute of Urology, Peking University, National Urological Cancer Center, Beijing, China.

Objective: To compare the outcomes of modified laparoscopic pyeloplasty (LP) and robot-assisted pyeloplasty (RLP) for ureteropelvic junction obstruction (UPJO) in China patients.

Materials And Methods: We retrospectively reviewed the medical records of patients who underwent modified LP and RLP using a transperitoneal laparoscopic approach at 2 different medical institutions between October 2009 and November 2017.

Results: Seventy-six patients underwent modified LP and 140 patients underwent RLP. Read More

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September 2018
8 Reads
1.150 Impact Factor

Ureteropelvic Junction Obstruction Underlying Pyelonephritis in an Adult.

Intern Med 2018 Sep 12. Epub 2018 Sep 12.

Division of General Internal Medicine, Nagoya Red Cross Daini Hospital, Japan.

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September 2018
1 Read

A long-term follow-up in conservative management of unilateral ureteropelvic junction obstruction with poor drainage and good renal function.

Eur J Pediatr 2018 Sep 12. Epub 2018 Sep 12.

Unit of Pediatric Surgery, Department of Human Pathology of Adult and Childhood "Gaetano Barresi", University of Messina, Messina, Italy.

The aim of the study was to retrospectively review the outcome of neonatal ureteropelvic junction obstruction with a good renal function and a poor drainage at a first diuretic renal scan, in cases where surgery was recommended on the basis of a loss of renal function, worsening of hydronephrosis or occurrence of clinical symptoms. Hydronephrosis was graded from 1 to 4 or as ureteral tract dilatation (UTD) P1 to UTD P3. During follow-up, 15 out of 38 patients (34. Read More

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September 2018
1 Read

Is there a difference in the number of interstitial cells, neurons, presence of fibrosis and inflammation in ureteropelvic junction tissues of patients with ureteropelvic junction obstruction with and without crossing vessels?

Turk J Urol 2018 Jul 27:1-5. Epub 2018 Jul 27.

Department of Pathology, Sakarya Training and Research Hospital, Sakarya, Turkey.

Objective: We compared the number of interstitial cells (ICs), nerves, presence of fibrosis and inflammation at the level of full-thickness human ureteropelvic junction (UPJ) tissues obtained from normal subjects, and patients with UPJ obstruction with and without crossing vessels.

Material And Methods: Normal UPJ tissues (n=12) histopathologically confirmed to be without tumor involvement were obtained from subjects who underwent radical nephrectomy for kidney mass. Additional UPJ tissues were obtained from patients who underwent pyeloplasty due to UPJ obstruction. Read More

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July 2018
4 Reads

Pathologic Specimens at Time of Pyeloplasty: Frequency and Practice Patterns.

Urology 2018 Sep 5. Epub 2018 Sep 5.

MUSC Department of Urology, Charleston, SC.

Objective: To assess national and regional practice patterns and rates of pathologic specimen identification sent at time of pyeloplasty, as well as project associated costs, we used a national administrative database. The rate at which the excised ureteropelvic junction obstruction (UPJO) is sent for pathologic identification is variable, arguably without a clear clinical purpose.

Materials / Methods: Utilizing a national administrative database of privately insured patients, 1496 individual cases were identified using international classification of diseases (ICD) and Current Procedural Terminology (CPT) coding. Read More

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September 2018
9 Reads

How may Doppler indices help in the differentiation of obstructive from nonobstructive hydronephrosis?

J Res Med Sci 2018 23;23:76. Epub 2018 Aug 23.

Department of Medical Physics, Isfahan University of Medical Sciences, Isfahan, Iran.

Background: We assess the potency of different Doppler indices in the differentiation of obstructive and nonobstructive hydronephrosis.

Materials And Methods: In this study, infants and children who were referred for the evaluation of unilateral hydronephrosis were enrolled. Ultrasonography for the assessment of the degree of hydronephrosis and a voiding cystourethrogram for the exclusion of vesicoureteral reflux was performed. Read More

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August 2018
11 Reads

The learning curve of robot-assisted laparoscopic pyeloplasty in children: a multi-outcome approach.

J Pediatr Urol 2018 Aug 2. Epub 2018 Aug 2.

Pediatric Surgery Department, University Teaching Hospital of Tours, Gatien de Clocheville Hospital, 37000 Tours, France.

Introduction: Few studies have evaluated the learning curve (LC) for robot-assisted laparoscopic pyeloplasty (RALP) for ureteropelvic junction obstruction in children. It was attempted to assess the LC of this procedure using a multi-outcome approach, accounting for patient complexity.

Material And Methods: Data on the first series of children undergoing RALP between November 2007 and December 2017 at the study institution were prospectively collected. Read More

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August 2018
1 Read

Ileocalicostomy Ureteral Substitution for Complex Ureteropelvic Junction Stricture: Technique and Initial Experience.

Urology 2018 Aug 29. Epub 2018 Aug 29.

Department of Urology, Ochsner Clinic Foundation, New Orleans, LA. Electronic address:

Objective: To present our novel surgical technique, ileocalicostomy ureteral substitution, for the management of long upper ureteral strictures in patients without a dilated extra-renal pelvis.

Materials And Methods: Two patients were identified with long, complex proximal ureteral strictures who were treated with our novel surgical technique by a single surgeon at a single institution. Perioperative data for these two patients are presented along with a detailed description of the surgical technique. Read More

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August 2018
3 Reads

Tragedy of transition: hypertensive crisis in a young adult secondary to unilateral ureteropelvic junction obstruction following pyeloplasty as an adolescent.

BMJ Case Rep 2018 Aug 29;2018. Epub 2018 Aug 29.

Internal Medicine, Ohio State University Wexner Medical Center, Columbus, Ohio, USA.

A 25-year-old man with a history of left ureteropelvic junction (UPJ) obstruction that was corrected surgically at the age of 16 presented with a chief complaint of syncope. He was found to have severe hypertension with evidence of end organ damage on laboratory evaluation. His blood pressure was controlled with intravenous and oral antihypertensives with improvement in end organ dysfunction. Read More

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August 2018
3 Reads

Incidence of pathologic postobstructive diuresis after resolution of ureteropelvic junction obstruction with a normal contralateral kidney.

J Pediatr Urol 2018 Jul 24. Epub 2018 Jul 24.

Division of Pediatric Urology, Riley Hospital for Children, Indiana University School of Medicine, 705 Riley Hospital Drive, Suite 4230, Indianapolis, IN, 46202, USA.

Introduction: Postobstructive diuresis (POD) after unilateral pyeloplasty or percutaneous nephrostomy (PCN) tube insertion for ureteropelvic junction obstruction (UPJO) in patients with a normal contralateral kidney is not well described.

Objective: The objective of this study was to determine the incidence and characteristics of POD after relief of unilateral UPJO in patients with a normal contralateral kidney.

Study Design: Children who underwent a unilateral pyeloplasty or PCN for UPJO from 2010 to 2017 with a normal contralateral kidney were retrospectively reviewed. Read More

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July 2018
10 Reads

Hydronephrosis After Pyeloplasty: "Will It Go Away?"

Urology 2018 Nov 18;121:158-163. Epub 2018 Aug 18.

Department of Urology, Division of Pediatric Urology, Le Bonheur Children's Hospital, University of Tennessee Health Science Center, Memphis, TN. Electronic address:

Objective: To identify attributes of pediatric patients with hydronephrosis due to ureteropelvic junction obstruction and of their surgical encounters which are predictive of resolution of dilatation in order to provide more effective counseling about expected outcomes. This study was inspired by the suggestion in recent literature that greater than 20% improvement in anteroposterior diameter (APD) of the renal pelvis after pyeloplasty is indicative of resolution of obstruction. The remaining dilatation, however, is often distressing to caregivers, and there are no data to guide clinicians in counseling about its likelihood to resolve. Read More

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November 2018
2 Reads

Index of suspicion with appropriate timing of CT scan helps prevent missed diagnosis in urologic trauma.

Med J Malaysia 2018 Aug;73(4):255-256

Hospital Kajang, Department of General Surgery, Selangor, Malaysia.

Ureteric and bladder injuries are uncommon, difficult to diagnose and rarely occur in isolation. Diagnosis is often delayed or missed at presentation. Therefore, high clinical suspicion and appropriate timing of computed tomography (CT) are of paramount importance. Read More

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August 2018
1 Read

Surgery for Pediatric Ureteropelvic Junction Obstruction-Comparison of Outcomes in Relation to Surgical Technique and Operating Discipline in Germany.

Eur J Pediatr Surg 2018 Aug 15. Epub 2018 Aug 15.

Department of Pediatric Surgery, University of Leipzig, Leipzig, Germany.

Introduction:  Surgery for ureteropelvic junction obstruction (UPJO) is performed by both pediatric surgeons (PS) and urologists (URO). The aim of this study was to analyze treatment modalities for UPJO and results in relation to the surgical technique and the operating discipline in Germany.

Material And Methods:  Data of patients aged 0 to 18 years were extracted from a major public health insurance (covering ∼5. Read More

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August 2018
2 Reads

Treatment of large fibroepithelial polyps in the proximal ureter with antegrade plus retrograde endoscopic laser polypectomy.

Medicine (Baltimore) 2018 Aug;97(32):e11747

Department of Urology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.

The diagnosis and treatment of large fibroepithelial polyps in the proximal ureter have been the clinical challenges. This study retrospectively summarized the clinical diagnosis and treatment of fibroepithelial polyps >5 cm in length in the proximal ureter of 6 patients who received treatment in the Affiliated Renji Hospital of Shanghai Jiaotong University School of Medicine between December 2010 and February 2017. The length of fibroepithelial polyps ranged from 5. Read More

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August 2018
11 Reads
5.720 Impact Factor

[Congenital dilatation of the upper urinary tract : Current diagnostic and treatment concepts].

Authors:
R Beetz

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

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August 2018
2 Reads

Laparoscopic ureterocalicostomy in children: The technique and feasibility.

Authors:
S Lobo I Mushtaq

J Pediatr Urol 2018 Aug 11;14(4):358-359. Epub 2018 Jul 11.

Urology Department, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK.

Ureterocalicostomy is a salvage technique commonly used for failed pyeloplasties; it has also been reported as a primary procedure in ureteropelvic junction obstruction (UPJO). This video describes the technique of laparoscopic ureterocalicostomy for primary UPJO in a child with a malrotated kidney and parenchymal thinning. A 13-year-old girl with symptomatic UPJO was found to have a malrotated kidney with a high posterior insertion of the ureter. Read More

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August 2018
16 Reads

Does the use of 5 mm instruments affect the outcomes of robot-assisted laparoscopic pyeloplasty in smaller working spaces? A comparative analysis of infants and older children.

J Pediatr Urol 2018 Jul 6. Epub 2018 Jul 6.

Division of Pediatric Urology, Department of Surgery, Texas Children's Hospital, and the Scott Department of Urology, Baylor College of Medicine, Houston, TX, USA. Electronic address:

Introduction: Pediatric robot-assisted laparoscopic (RAL) pyeloplasty has become a viable minimally invasive surgical option for ureteropelvic junction obstruction (UPJO) based on its efficacy and safety. However, RAL pyeloplasty in infants can be a challenging procedure because of the smaller working spaces. The use of the larger 8 mm instruments for these patients instead of the 5 mm instruments is common because of the shorter wrist lengths. Read More

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July 2018
1 Read

Retroperitoneal laparoscopic non-dismembered pyeloplasty for uretero-pelvic junction obstruction due to crossing vessels: A matched-paired analysis and review of literature.

Asian J Urol 2018 Jul 6;5(3):172-181. Epub 2018 Mar 6.

Department of Urology and Pediatric Urology, SLK Kliniken Heilbronn, University of Heidelberg, Heibronn, Germany.

Objective: To compare laparoscopic Anderson-Hynes pyeloplasty (LAHP) and retroperitoneal laparoscopic YV-pyeloplasty (LRYVP) in ureteropelvic junction obstruction (UPJ) in presence of a crossing vessels (CV).

Methods: Our database showed 380 UPJO-cases,who underwent laparoscopic retroperitoneal surgery during the last 2 decades including 206 non-dismembered LRYVP, 157 dismembered pyeloplasties LAHP, and 17 cases of laparoscopic ureterolysis. Among them 198 cases were suitable for a matched-pair (2:1) analysis comparing laparoscopic retroperitoneal non-dismembered LRYVP (Group 1,  = 131) and dismembered LAHP (Group 2,  = 67) in presence of a crossing vessel. Read More

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July 2018
3 Reads

[Is there a difference in the postoperative follow up of ureteropelvic junction obstruction according to age?]

Cir Pediatr 2018 Apr 20;31(2):99-103. Epub 2018 Apr 20.

Servicio Cirugía Pediátrica. Hospital Infantil Miguel Servet. Zaragoza.

Objective: To compare postoperative follow up in patients older and younger than 12 months who underwent surgical treatment of ureteropelvic junction obstruction (UJO).

Material And Methods: Retrospective study of 77 patients, 78 kidney units, intervened from UJO (2007-2014). We analyzed epidemiological, clinical, echographic, and pre and postoperative renogram variables, outcomes and complications. Read More

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April 2018
1 Read

Hydronephrosis and risk of later development of hypertension.

Acta Paediatr 2019 Jan 24;108(1):50-57. Epub 2018 Jul 24.

Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.

Aim: Congenital ureteral obstruction is a fairly common condition in infants, and its clinical management has been long debated during the last decade. The long-term physiological consequences of today's conservative non-surgical management in many asymptomatic hydronephrotic children are unclear.

Methods: Experimental studies in rats and mice, retrospective studies in children and adults, as well as prospective studies in children are included in this mini review. Read More

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January 2019
3 Reads

A case of laparoscopic high anterior resection of rectosigmoid colon cancer associated with a horseshoe kidney using preoperative 3D-CT angiography.

Surg Case Rep 2018 Jun 27;4(1):66. Epub 2018 Jun 27.

Department of Surgery, Nagano Prefectural Shinshu Medical Center, Suzaka, 1332, Suzakashi, Nagano, 382-8577, Japan.

Background: Horseshoe kidney is a congenital malformation in which the bilateral kidneys are fused. It is frequently complicated by other congenital malformations and is often accompanied by anomalies of the ureteropelvic and vascular systems, which must be evaluated to avoid iatrogenic injury. We report a case of laparoscopic high anterior resection of rectosigmoid colon cancer associated with a horseshoe kidney using preoperative 3D-CT angiography. Read More

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June 2018
7 Reads

The urologist and child hydronephrosis caused by ureteral anomalies.

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

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October 2018
18 Reads

Pedunculated and obstructive Wilms' tumor: A rare presentation in a 2 year-old male.

Urol Case Rep 2018 Sep 7;20:38-40. Epub 2018 Jun 7.

Department of Urology, West Virginia University School of Medicine, PO Box 9238, Morgantown, WV 26506, USA.

Wilms' tumor manifesting as an obstructing ureteral mass is extremely rare. Herein, we report an unusual case in which a child presented with a clinical picture concerning for and suggestive of ureteropelvic junction obstruction (UPJO), but was instead found to have an intrapelvic pedunculated Wilms' tumor with extension into the proximal ureter. We discuss the patient's diagnostic workup, radiographic, operative and pathologic findings, as well as important lessons learned from this unusual case. Read More

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September 2018
14 Reads

Pediatric robotic-assisted laparoscopic pyeloplasty: Does age matter?

J Pediatr Urol 2018 Jun 1. Epub 2018 Jun 1.

Division of Pediatric Urology, Children's Hospital of Philadelphia, Philadelphia, USA. Electronic address:

Background: Although shown to be safe in infancy, robotic-assisted laparoscopic pyeloplasty (RALP) for ureteropelvic junction obstruction (UPJO) is most commonly performed in older children and adolescents.

Objective: This study examined a contemporary RALP experience at a single tertiary pediatric center and compared outcomes in infants aged ≤1 year with an older cohort.

Methods And Design: All RALP procedures were entered into an Institutional Review Board-approved data registry from 2012 to 2016. Read More

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June 2018
8 Reads

[Evaluation of upper urinary tract function in patients undergoing autoplastic surgery for hydronphrosis of the intrarenal pelvis].

Urologiia 2018 May(2):46-53

M.T. Tynaliev Department of Urology and Andrology of pre- and postgraduate education. I. K. Akhunbaev Kyrgyz State Medical Academy, Bishkek, Kyrgyz Republic.

Aim: To investigate the functional state of the upper urinary tract in patients undergoing autoplastic surgery for a hydronophrosis of the intrarenal pelvis.

Material And Methods: The study comprised 78 patients with the intrarenal pelvis and impaired urinary outflow due to stricture of the ureteropelvic junction and vascular conflict (interatrial and arteriovenous narrowing), who underwent pyeloplasty using autologous tunica vaginalis. All patients underwent an incision of ureteropelvic stricture and resection of the parietal layer of the tunica vaginalis which was used to repair the obstruction site and internal stenting of the upper urinary tract. Read More

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May 2018
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