2,651 results match your criteria Pyeloplasty


Pelviureteric Junction Obstruction Due to Vascular Anomalies in Children - Simple Surgical Options.

J Indian Assoc Pediatr Surg 2022 May-Jun;27(3):297-303. Epub 2022 May 12.

Department of Paediatric Surgery, St. John's Medical College, Bengaluru, Karnataka, India.

Aims: Pelviureteric junction obstruction (PUJO) due to aberrant lower polar artery is conventionally managed with pyeloplasty. We present our experience of managing PUJO due to "vascular" anomalies-aberrant lower polar artery and vascular adhesions with simpler surgical options.

Subjects And Methods: This is a protocol based, retrospective study of PUJO. Read More

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Outcome of Patients with Antenatally Diagnosed hydronephrosis with Respect to Postnatal Diagnosis and Need for Surgical Intervention.

J Indian Assoc Pediatr Surg 2022 May-Jun;27(3):333-339. Epub 2022 May 12.

Department of Radiodiagnosis, Postgraduate Institute of Medical Education and Research, Chandigarh, India.

Aims: This study aims to determine the etiology of antenatal hydronephrosis (ANH) and predict need for surgical intervention based on antenatal renal pelvis anteroposterior diameter (APD).

Materials And Methods: Combined prospective and retrospective study (2012-2018) of ANH cases with postnatal follow-up. Surgical intervention was correlated with the degree of hydronephrosis (HDN) and pelvis APD measured at the 2 trimester, 3 trimester, and postnatal 6-week follow-up. Read More

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Transabdominal laparoscopy and ureteroscopy one-stage surgery in the treatment of bilateral ureteropelvic junction obstruction combined with bilateral renal stones: A case report.

Exp Ther Med 2022 Jul 17;24(1):450. Epub 2022 May 17.

Department of Urology, Affiliated Hospital of Hebei University of Engineering, Handan, Hebei 056004, P.R. China.

Ureteropelvic junction obstruction (UPJO) is a common congenital malformation of the urinary system, which is mostly unilateral and frequently combined with hydronephrosis and kidney stones. The incidence of kidney stones is ~20%, which markedly increases the difficulty and risk of surgery. The present report describes a rare case of bilateral UPJO combined with bilateral renal stones. Read More

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Technique and perioperative outcomes of single-port robotic surgery using the da Vinci SP platform in urology.

Asian J Surg 2022 Jun 9. Epub 2022 Jun 9.

Department of Urology, Ewha Womans University Seoul Hospital, Seoul, South Korea.

Objective: To describe surgical technique for single port robotic surgery using the da Vinci SP system and report the perioperative outcomes.

Patients And Methods: Between Jan 2019 and Jan 2021, single-port robotic urologic surgeries were performed in 120 patients by a single surgeon. Clinicopathologic data and perioperative outcomes were collected. Read More

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Deep-learning segmentation of ultrasound images for automated calculation of the hydronephrosis area to renal parenchyma ratio.

Investig Clin Urol 2022 May 25. Epub 2022 May 25.

Department of Convergence Medicine, Asan Medical Center, Seoul, Korea.

Purpose: We investigated the feasibility of measuring the hydronephrosis area to renal parenchyma (HARP) ratio from ultrasound images using a deep-learning network.

Materials And Methods: The coronal renal ultrasound images of 195 pediatric and adolescent patients who underwent pyeloplasty to repair ureteropelvic junction obstruction were retrospectively reviewed. After excluding cases without a representative longitudinal renal image, we used a dataset of 168 images for deep-learning segmentation. Read More

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Percutaneous nephrostomy in Ureteropelvic junction obstruction with poorly functioning kidney: Is it still pertinent in adults?

Turk J Urol 2022 May;48(3):229-235

Department of Urology and Renal Transplantation, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India.

Objective: To determine the pertinence of percutaneous nephrostomy drainage in adult patients of primary ureteropelvic junction obstruction with poorly functioning kidneys (<20% split renal function).

Material And Methods: Clinical records of all patients with primary ureteropelvic junction obstruction with poorly functioning kidneys who underwent percutaneous nephrostomy drainage in our institute between February 2015 and January 2020 were retrospectively reviewed. The patients were divided into 4 groups according to their split renal function obtained from the Tc-99m ethylenedicysteine diuretic renogram. Read More

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A Comparison Between Laparoscopic and Robot-Assisted Laparoscopic Pyeloplasty in Patients with Ureteropelvic Junction Obstruction.

Yonago Acta Med 2022 May 15;65(2):126-131. Epub 2022 Apr 15.

Division of Urology, Department of Surgery, School of Medicine, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan.

Background: The aim of this study is to compare the results of laparoscopic pyeloplasty and robot-assisted laparoscopic pyeloplasty in patients with ureteropelvic junction obstruction.

Methods: Between March 2008 and May 2019, the patients who underwent retroperitoneal laparoscopic or robotic-assisted laparoscopic pyeloplasty in our institution were retrospectively reviewed.

Results: Thirteen patients underwent laparoscopically, and 12 patients underwent robotic surgery. Read More

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Attaining competency and proficiency in open pyeloplasty: a learning curve configuration using cumulative sum analysis.

Int Urol Nephrol 2022 May 19. Epub 2022 May 19.

Division of Urology, Department of Surgery, The Hospital for Sick Children, 555 University Ave, Toronto, ON M5G 1X8, Canada.

Introduction: The learning curves for minimally invasive pyeloplasty techniques have been described in the past. However, the learning curve in achieving competency in open pyeloplasty has not been described. Hence, we aim to evaluate a single surgeon series of open pyeloplasty technique using the cumulative sum (CUSUM) methodology. Read More

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Barbed Versus Non-Barbed Suture for Pyeloplasty via the Minimally Invasive Approach: A Systematic Review and Meta-Analysis.

J Laparoendosc Adv Surg Tech A 2022 May 12. Epub 2022 May 12.

Department of Pediatric Surgery, University Hospital of Split, Split, Croatia.

There is no agreed protocol on usage of proper and best suturing material in minimally invasive pyeloplasty. The aim of this meta-analysis was to summarize and analyze current evidence on suturing materials for laparoscopic pyeloplasty. This study was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Read More

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Long Term Outcome of 112 Pediatric Patients With Ureteroplevic Junction Obstruction Treated by Endourologic Retrograde Balloon Dilatation.

Front Pediatr 2022 25;10:863625. Epub 2022 Apr 25.

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

Purpose: To analyze the effectiveness, complications and long-term outcome of the patients with ureteropelvic junction obstruction (UPJO) treated by endoscopic retrograde balloon dilatation (ERBD) in the largest series reported.

Materials And Methods: Between years 2004 and 2018, 112 patients with primary unilateral UPJO were treated by ERBD. Endoscopic treatment consisted on a retrograde balloon dilatation of the ureteropelvic junction (UPJ), through cystoscopy and under fluoroscopic guidance, using high-pressure balloon catheters. Read More

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Giant renal parapelvic cyst with pelvi-ureteric junction obstruction in an infant: challenges in diagnosis and laparoscopic management.

BMJ Case Rep 2022 May 11;15(5). Epub 2022 May 11.

Pediatric Surgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.

Renal parapelvic cysts (RPC) have an incidence of approximately 1%-3% in the general population. However, they rarely present in children with only two cases reported in literature. RPC are often misdiagnosed as it is difficult to distinguish them from hydronephrosis on preoperative imaging. Read More

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Laser endoureterotomy with cut-to-the-light technique for complete ureteral obstruction - A case report.

Urol Case Rep 2022 May 16;42:102036. Epub 2022 Feb 16.

Department of Urology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima, 770-8503, Japan.

Ureteral stricture and obstruction following ureteroscopy are often difficult to treat. We report successful laser endoureterotomy using the cut-to-the-light technique for complete obstruction. A 44-year-old man developed complete ureteral obstruction at the ureteropelvic junction following transurethral ureterolithotripsy. Read More

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Pyeloplasty with ureteral stent placement in children: Do prophylactic antibiotics serve a purpose?

J Pediatr Urol 2022 Apr 11. Epub 2022 Apr 11.

University of Tennessee Health Science Center/Le Bonheur Children's Hospital, Memphis, TN, USA.

Objectives: Ureteral stents are commonly used during pyeloplasty to ensure drainage and anastomotic healing. Antibiotic prophylaxis is often used due to concerns for urinary tract infection (UTI). Although many surgeons prescribe prophylactic antibiotics following pyeloplasty, practices vary widely due to lack of clear evidence-based guidelines. Read More

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Retrograde stent with external string for pediatric robotic pyeloplasty: does it reduce cost and complications?

J Robot Surg 2022 Apr 29. Epub 2022 Apr 29.

Section of Gastroenterology, Hepatology and Nutrition, Center for Pediatric and Adolescent Comparative Effectiveness Research, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.

Robotic-assisted pyeloplasty (RAP) is a mainstay in the treatment of ureteropelvic junction obstruction (UPJO) in children. At our institution, to limit planned operating rooms visits we have placed a ureteral stent with an external string (SWES) immediately prior to RAP. In this study, we sought to quantify the operative time, complications, and costs associated with this approach compared to the traditional approach, requiring subsequent stent removal in the operating room. Read More

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Use of magnetic double J stents in pediatric patients.

Cir Pediatr 2022 Apr 1;35(2):85-90. Epub 2022 Apr 1.

Donostia University Hospital. San Sebastian (Spain).

Objective: Traditionally, double J stent removal in pediatric patients has required cystoscopy under general anesthesia. Magnetic stents allow for double J stent removal without the need for anesthesia. This work describes our initial experience with these stents. Read More

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Robotic treatment of ureteropelvic junction obstruction in Eagle-Barrett Syndrome.

Can J Urol 2022 04;29(2):11116-11118

Department of Urology at University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA.

Eagle-Barrett Syndrome (EBS) is a rare congenital condition characterized by the triad of absent or defective abdominal wall muscles, urinary tract abnormalities, and bilateral cryptorchidism. Ureteropelvic junction obstruction (UPJO) is seldom reported in these patients, despite it being a common cause of childhood obstructive uropathy. We present the case of a patient with EBS who was subsequently identified as having symptomatic UPJO that was successfully treated with robotic pyeloplasty. Read More

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Anterograde Mini-Percutaneous Retropelvic Extra-Luminal Endopyelotomy: A Novel Approach to Uretero-Pelvic Junction Obstruction.

Cureus 2022 Feb 25;14(2):e22586. Epub 2022 Feb 25.

Urology, University of the Witwatersrand, Johannesburg, ZAF.

Background Uretero-pelvic junction obstruction (UPJO) is a common cause of upper tract urinary obstruction. This condition is generally treated with various surgical options which include endoscopic (retrograde or anterograde), laparoscopic, open or robotic-assisted approaches. Herein, we describe a novel endoscopic retropelvic extra-luminal approach using a mini (14 Fr) nephroscope. Read More

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February 2022

Comparing the Effects of 2D and 3D Imaging Systems on Laparoscopic Pyeloplasty Outcomes in the Treatment of Adult Ureteropelvic Junction Obstruction.

J Laparoendosc Adv Surg Tech A 2022 Mar 28. Epub 2022 Mar 28.

Department of Urology, Ataturk University Medical Faculty, Erzurum, Turkey.

The aim of this study was to compare the efficacy, safety, and the clinical and perioperative outcomes of two-dimensional (2D) and three-dimensional (3D) laparoscopic imaging systems in adult patients undergoing laparoscopic pyeloplasty in our clinics due to ureteropelvic junction (UPJ) obstruction. A total of 46 adult patients who had undergone laparoscopic pyeloplasty due to UPJ obstruction were included in the study. Cases that had undergone the operation before January 2019 were retrospectively evaluated with the 2D imaging systems. Read More

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First Pediatric Pyeloplasty Using the Senhance Robotic System-A Case Report.

Children (Basel) 2022 Feb 22;9(3). Epub 2022 Feb 22.

Department of General and Visceral Surgery, Klinikum, D-73730 Esslingen, Germany.

A pediatric robotic pyeloplasty has been performed with the Senhance robotic system for the first time in January 2021 on a 1.5-year-old girl with symptomatic ureteropelvic junction stenosis. A Senhance robotic system (Asensus Surgical Inc. Read More

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February 2022

Comparison of Secondary and Primary Minimally Invasive Pyeloplasty in the Treatment of Ureteropelvic Junction Obstruction: A Systematic Review and Meta-Analysis.

J Laparoendosc Adv Surg Tech A 2022 Mar 18. Epub 2022 Mar 18.

Department of Urology, Lanzhou University Second Hospital, Lanzhou, China.

To compare the outcomes of secondary minimally invasive pyeloplasty (MIP) versus primary MIP for the patients with ureteropelvic junction obstruction (UPJO). We searched all the literature of PubMed, Web of Science, EMBASE, and Cochrane Library comparing secondary MIP and primary MIP and performed a systematic review and meta-analysis. We included 15 studies involving 1637 patients with 1371 in the primary MIP group and 266 in the secondary MIP group. Read More

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Ureteral Injuries Secondary to Blunt Abdominal Trauma: A 15-Year Review of Presentation, Management, and Outcomes at a Level 1 Trauma Center.

Urology 2022 Jun 9;164:248-253. Epub 2022 Mar 9.

Department of Urology, University of Washington, Seattle, WA. Electronic address:

Objective: To report our contemporary experience with ureteral injuries secondary to blunt trauma, with diagnostic methods and management stratified according to injury severity.

Materials And Methods: We performed a retrospective 15-year study (4/2005-4/2020) at a regional level I trauma center. Patients were categorized as having a partial or complete transection injury. Read More

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Outcome Analysis of Reduction and Nonreduction Dismembered Pyeloplasty in Ureteropelvic Junction Obstruction: A Randomized, Prospective, Comparative Study.

J Indian Assoc Pediatr Surg 2022 Jan-Feb;27(1):25-31. Epub 2022 Jan 11.

Department of Nuclear Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India.

Objectives: The objective of this study is to compare the changes in renal function and drainage following open dismembered pyeloplasty with and without renal pelvis reduction.

Materials And Methods: Randomized prospective study of children with ureteropelvic junction obstruction undergoing pyeloplasty with (Group 1) and without (Group 2) pelvis reduction over an 18-month period. Postoperative function and drainage were assessed by ethylene dicysteine (EC) scan and intravenous urography (IVU) and renal pelvis size by ultrasonography. Read More

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January 2022

Robotic pyeloplasty in children - a pilot study.

Rozhl Chir 2022 ;101(2):79-84

Introduction: Pyeloplasty for congenital hydronephrosis (pyeloureteral junction obstruction, PUJO) can be performed as an open, laparoscopic or robotic procedure in children. The aim of this study was to analyze a pilot cohort of pediatric patients operated robotically.

Methods: A retrospective analysis of the cohort of patients 3 to 18 years of age who underwent primary robotic pyeloplasty between December 2018 (which is when the robotic program was launched at the University Hospital Motol) and June 2021. Read More

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Ten years of paediatric robotic surgery: Lessons learned.

Int J Med Robot 2022 Mar 3:e2386. Epub 2022 Mar 3.

Department of Paediatric Surgery, Skåne University Hospital, Lund, Sweden.

Background: Costs and a low total number of cases may be obstacles to the successful implementation of a paediatric robotic surgery programme. The aim of this study was to evaluate a decade of paediatric robotic surgery and to reflect upon factors for success and to consider obstacles.

Materials And Methods: All children operated on with robotic-assisted laparoscopic surgery between 2006 and 2016 were included in a retrospective, single-institutional study in Lund, Sweden. Read More

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Robot-Assisted Laparoscopic Ureterocalicostomy in the Setting of Ureteropelvic Junction Obstruction: A Multi-Institutional Cohort.

J Urol 2022 07 21;208(1):180-185. Epub 2022 Feb 21.

Division of Urology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.

Purpose: Recurrent ureteropelvic junction obstruction (UPJO) after failed pyeloplasty is a complex surgical dilemma. The robot-assisted laparoscopic ureterocalicostomy (RALUC) is a potential surgical approach, but widespread adoption is limited due to the perceived technical challenge of the procedure. We present a multi-institutional pediatric cohort undergoing RALUC for recurrent or complex UPJO, and hypothesize that the procedure is reproducible, safe and efficacious. Read More

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Evaluating TIMP-2 and IGFBP-7 as a predictive tool for kidney injury in ureteropelvic junction obstruction.

Int Braz J Urol 2022 Mar-Apr;48(2):284-293

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

A major challenge in the management of ureteropelvic junction obstruction (UPJO) is the selection of patients who would benefit from surgical treatment. Tissue inhibitor metalloproteinase-2 (TIMP-2) and insulin-like growth factor-binding protein 7 (IGFBP7) indicate renal cell stress and are associated with cell cycle arrest. The [TIMP-2] [IGFBP7] ratio (Nephrocheck®) has been recently applied in patients in intensive care units patients to predict the development of acute kidney injury. Read More

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The role of Plasma Renin Activity in prenatally diagnosed non-obstructed hydronephrosis at risk for surgery-an observational study.

J Nephrol 2022 Mar 7;35(2):639-644. Epub 2022 Feb 7.

Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India.

Background: Patients with asymptomatic prenatally diagnosed hydronephrosis may progress to needing surgery; no biomarker supporting the identification of these cases is currently available. The aim of the study was to assess the role of Plasma Renin Activity (PRA) as a discriminatory factor to identify patients with asymptomatic prenatally diagnosed hydronephrosis who require close monitoring and are at-risk for surgery.

Methods: The study group consists of 30 children prenatally diagnosed with asymptomatic unilateral hydronephrosis, initially managed with medical follow-up. Read More

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Urinary HSP70 can predict the indication of surgery in unilateral ureteropelvic junction obstruction.

Pediatr Surg Int 2022 Mar 31;38(3):499-503. Epub 2022 Jan 31.

Division of Pediatric Urology, Department of Urology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.

Background: Distinguishing hydronephrosis that requires surgical intervention is a clinical challenge. The aim of this study is to determine the level of urinary heat shock protein 70 (HSP70) in children who required surgery for ureteropelvic junction obstruction and its potential use as a biomarker for prediction of surgery in children with isolated unilateral hydronephrosis.

Methods: The data of 43 children with ureteropelvic junction obstruction who underwent pyeloplasty, 25 patients with non-obstructive dilation (NOD) and 30 healthy children (control group) were collected prospectively for this study. Read More

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Robotic-Assisted Laparoscopic Ureterocalicostomy for Persistent Uretero-Pelvic Junction (UPJ) Obstruction after Failed Renal Pyeloplasty.

Authors:
W Z So H Y Tiong

Eur Urol Open Sci 2022 Mar 11;37:1-2. Epub 2022 Jan 11.

National University Hospital, Dept. of Urology, Kent Ridge, Singapore.

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