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ureteral stricture

Myong Kim, Bumsik Hong, Hyung Keun Park
PURPOSE: To evaluate the long-term clinical efficacy and safety of double-layered polytetrafluoroethylene membrane-covered self-expandable segmental metallic stents (Uventa) in patients with chronic ureteral obstruction. MATERIALS AND METHODS: In a retrospective study, a total of 50 ureter units (44 patients) with chronic obstructions were included from July 2010 to May 2015. Indications for Uventa placement were primary stenting for malignant ureteral obstruction, failed conventional polymeric Double-J stent (PS) or percutaneous nephrostomy (PCN) technique, with comorbidities or fears limiting PS/PCN changes, or with irritation or pain due to PS/PCN...
October 13, 2016: Journal of Endourology
Wojciech Krajewski, Janusz Dembowski, Anna Kołodziej, Bartosz Małkiewicz, Krzysztof Tupikowski, Michał Matuszewski, Paweł Chudoba, Maria Boratyńska, Marian Klinger, Romuald Zdrojowy
INTRODUCTION: Urological complications after renal transplantation occur in between 2.5% and 30% of all graft recipients. The aim of the study was to present 7 years of experience in urological treatment of patients with a transplanted kidney. We aimed to identify retrospectively late urological complications in renal transplant recipients at a single center and analyze the treatment modalities and their outcome. MATERIAL AND METHODS: Between January 2008 and December 2014, a total of 58 patients after KTX were treated in the Department of Urology because of post-transplant urological complications that occurred during follow-up at the Transplant Outpatient Department...
2016: Central European Journal of Urology
M-O Timsit, F Kleinclauss, V Richard, R Thuret
OBJECTIVE: To report the nature, incidence, diagnosis and treatment options of surgical complications after renal transplantation. MATERIAL AND METHODS: Relevant publications were identified through Medline ( and Embase ( database from 1960 to 2016 using the following keywords "fistula; lymphocele; stricture; thrombosis", in association with "renal transplantation" in Title/Abstract field. Articles were selected according to methods, language of publication and relevance...
October 5, 2016: Progrès en Urologie
Patrick-Julien Treacy, Art R Rastinehad, Laetitia Imbert de la Phalecque, Laetitia Albano, Matthieu Durand
Background: Ureteral stenosis is part of the common complications of renal graft reported in 3% to 7% of cases. Multiple treatments have been introduced regarding length and position of the stenosis. Metal stents for urologic purpose were created in 1998. Double percutaneous antegrade and transurethral retrograde access to a ureteral stenosis to a long-term metal stent procedure has been rarely described. Case Presentation: Here, we present a case of a ureteral stricture in a double ipsilateral kidney graft with a common ureter...
2016: J Endourol Case Rep
Barak Rosenzweig, Yoram Mor, Tomer Erlich, Menachem Laufer, Harry Winkler, Issac Kaver, Jacob Ramon, Zohar A Dotan
INTRODUCTION: Ureteral strictures can result in obstructive nephropathy and renal function deterioration. Surgical management of ureteral defects, especially in the proximal- and mid-ureter, is particularly challenging. Our purpose was to analyze the long-term outcomes of urothelial-based reconstructive surgery for upper- and mid-ureteral defects. METHODS: We conducted a retrospective analysis of a single tertiary centre's database, including 149 patients treated for ureteral defects between 2001 and 2011...
September 2016: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
Véronique Livet, Paul Pillard, Isabelle Goy-Thollot, David Maleca, Quentin Cabon, Denise Remy, Didier Fau, Éric Viguier, Céline Pouzot, Claude Carozzo, Thibaut Cachon
OBJECTIVES: The purpose of this study was to describe the perioperative and postoperative complications as well as short-term and long-term outcomes in cats with ureteral obstructions treated by placement of a subcutaneous ureteral bypass (SUB) device without imaging control. The second objective of this study was to compare cats treated by SUB device with cats treated by traditional surgical intervention. METHODS: Data were obtained retrospectively from the medical records (2014-2016) of cats that underwent SUB placement (SUB cats) and cats that underwent traditional ureteral surgery (C cats)...
September 30, 2016: Journal of Feline Medicine and Surgery
Liangsheng Lu, Yunli Bi, Xiang Wang, Shuangsui Ruan
PURPOSE: Midureteral obstruction is an extremely rare condition. This retrospective study assessed the outcomes of laparoscopic ureteroureterostomy (UU) in 13 children with midureteral obstructions. METHODS: Records of patients with midureteral obstruction who underwent laparoscopic end-to-end UU between July 2011 and August 2015 were reviewed. The medical records comprised patient demographic data, intraoperative details, postoperative outcomes, and related complications...
September 26, 2016: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
Ruchika Talwar, Michael Benson, Mina Fam, Vladislav Bargman, Nitin N Patel
Urologists rely heavily on indwelling ureteral stents to manage urinary tract obstruction secondary to calculi, malignancy, stricture, congenital anomalies, or edematous response to operative procedures(1). The use of a ureteral stent is a temporary intervention and requires removal to prevent potential complications. However, patient non-compliance with follow-up may lead to encrustation of the ureteral stent. Given the widespread use of indwelling ureteral stents in urologic practice, the issue of encrustation secondary to a retained stent is a significant clinical challenge...
September 14, 2016: Urology
Alexander M Helfand, Rebekah Beach, Miriam Hadj-Moussa, Naveen Krishnan, Chang He, Jeffrey S Montgomery, Todd M Morgan, Alon Z Weizer, Khaled Hafez, Cheryl T Lee, John T Stoffel, Ted A Skolarus
OBJECTIVE: To examine whether long-term renal function and overall survival outcomes vary according to management approach for ureteral anastomotic stricture (UAS) after cystectomy and urinary diversion. METHODS: We conducted a retrospective cohort study of patients with benign UAS following cystectomy and urinary diversion using our institutional database. We compared time to stricture, renal function, rates of renal loss, and overall survival between patients undergoing ureteral reimplantation vs...
August 29, 2016: Urologic Oncology
Nathan M Shaw, Jennifer M Lobo, Rebecca Zee, Tracey L Krupski
BACKGROUND: Ureteroenteric stricture occurs in as many as 15% of patients after cystectomy with urinary diversion. First-line management is typically percutaneous nephrostomy (PCN) drainage. We sought to compare costs of a urologic approach of retrograde stenting through flexible endoscopy and an interventional radiology (IR) approach of PCN and antegrade stenting using predictive modeling. The purpose of this study is to inform best practice for initial stricture management based on existing literature regardless of the benign stricture rate following radical cystectomy...
October 3, 2016: Journal of Endourology
Ravindra B Sabnis, Abhishek G Singh, Arvind P Ganpule, Jaspreet S Chhabra, Gopal R Tak, Jaimin H Shah
INTRODUCTION: In the past, urological complications after renal transplantation were associated with significant morbidity. With the development and application of endourological procedures, it is now possible to manage these cases with minimally invasive techniques. MATERIALS AND METHODS: A MEDLINE search for articles published in English using key words for the management of urological complications after renal transplantation was undertaken. Forty articles were selected and reviewed...
July 2016: Indian Journal of Urology: IJU: Journal of the Urological Society of India
Arman Tsaturyan, Kristina Akopyan, Arthur Levonyan, Ashot Tsaturyan
INTRODUCTION: The aim of this study is to demonstrate the results of a case series concerning the replacement of long ureteric strictures using buccal mucosa grafts. MATERIAL AND METHODS: Five patients (3 men, 2 women), with a mean age of 35 years old, underwent reconstructive ureteral surgery using buccal mucosa graft with omental wrapping during the period of 2010-2013. In all cases, the location of strictures was in the proximal ureters with the length of strictures varying from 2...
2016: Central European Journal of Urology
Yasser Osman, Ahmed M Harraz, Tamer S Barakat, Samer El-Halwagy, Ahmed Mosbah, Hassan Abol-Enein, Atallah A Shaaban
OBJECTIVES: To compare treatment-related outcomes of ureteral stenting with an external versus double J stent in patients with orthotopic reservoirs after radical cystectomy. METHODS: Patients undergoing radical cystectomy and orthotopic neobladder were randomized into two groups; group I patients received external stents, whereas group II received double J stents. In both groups, preoperative parameters were recorded, and patients were assessed regarding urinary tract infection, urinary leakage, upper tract deterioration, readmission and hospital stay...
October 2016: International Journal of Urology: Official Journal of the Japanese Urological Association
Shulian Chen, Liang Zhou, Tangqiang Wei, Deyi Luo, Tao Jin, Hong Li, Kunjie Wang
PURPOSE: Holmium YAG laser lithotripsy (LL) and pneumatic lithotripsy (PL) are the most commonly used procedures in the treatment of ureteral calculi. In a previous meta-analysis examining the treatment effect of the 2 modalities, the authors highlighted the need for large sample size and high quality trials to provide more uncovered outcome. Recently, several randomized controlled trials (RCTs) evaluating the same issue with larger patient number and more complicated data have been published...
August 10, 2016: Urologia Internationalis
Tamer M Abou Youssif, Ahmed Fahmy, Hazem Rashad, Mohammed Adel Atta
OBJECTIVES: To present a novel ureteric re-implantation technique for primary obstructed megaureter (POM) that ensures success in the short- and long-term, as conventional techniques are not ideal for megaureters especially in children, with ureteric stenosis and reflux being common complications after re-implantation. PATIENTS AND METHODS: Between 2009 and 2012, 22 paediatric patients with POM were enrolled. We performed a new technique for re-implantation of these ureters to ensure minimal incidence of ureteric strictures and easy subsequent endoscopic access...
June 2016: Arab Journal of Urology
Mahmoud A Abdel Hakim, Ahmed A Abdalla, Ismail R Saad, Mohammed S ElSheemy, Ahmed S El Feel, Hosni K Salem, Amr M Abdel Hakim
OBJECTIVE: To prospectively compare the use of external ureteric stents with internal JJ stenting of the uretero-ileal anastomosis in patients undergoing laparoscopic radical cystectomy (LRC) with a Y-shaped ileal orthotopic neobladder (ON). PATIENTS AND METHODS: The study included 69 patients undergoing LRC with ON. Patients were grouped according to the type of uretero-ileal stents used. An external ureteric stent was used in Group A (33 patients) and a JJ stent was used in Group B (36)...
June 2016: Arab Journal of Urology
Laura Vilalta, Elisabet Dominguez, Raul Altuzarra, Neus Sibera, Yvonne Espada, Rosa Novellas, Jaime Martorell
An 8-month-old neutered male ferret was presented for vaccination and preventive treatment for adrenal gland disease. Abdominal ultrasound revealed severe bilateral hydronephrosis and hydroureter. Excretory urography and negative contrast cystography showed bilateral ureterovesical junction stenosis. Positive retrograde cystography demonstrated right ureteral reflux. A subcutaneous ureteral bypass was placed in the left kidney; however, it had to be removed 3 months later due to an obstruction and persistent urinary tract infection...
August 4, 2016: Veterinary Radiology & Ultrasound
Nicolò Maria Buffi, Giovanni Lughezzani, Rodolfo Hurle, Massimo Lazzeri, Gianluigi Taverna, Giorgio Bozzini, Riccardo Bertolo, Enrico Checcucci, Francesco Porpiglia, Nicola Fossati, Giorgio Gandaglia, Alessandro Larcher, Nazareno Suardi, Francesco Montorsi, Giuliana Lista, Giorgio Guazzoni, Alexandre Mottrie
BACKGROUND: Minimally invasive treatment of benign ureteral strictures is still challenging because of its technical complexity. In this context, robot-assisted surgery may overcome the limits of the laparoscopic approach. OBJECTIVE: To evaluate outcomes for robotic ureteral repair in a multi-institutional cohort of patients treated for ureteropelvic junction obstruction and ureteral stricture (US) at four tertiary referral centres. DESIGN, SETTING, AND PARTICIPANTS: This retrospective study reports data for 183 patients treated with standard robot-assisted pyeloplasty (PYP) and robotic uretero-ureterostomy (UUY) at four high-volume centres from January 2006 to September 2014...
July 26, 2016: European Urology
Erik N Mayer, Jonathan D Tward, Mitchell Bassett, Sara M Lenherr, James M Hotaling, William O Brant, William T Lowrance, Jeremy B Myers
OBJECTIVE: To describe the management of grade 4 Radiation Therapy Oncology Group (RTOG) urinary adverse events (UAEs) after radiotherapy (RT) for prostate cancer (PCa). We hypothesized grade 4 UAEs often require complex surgical management and subject patients to significant morbidity. METHODS: A single-center retrospective review, over a 6-year period (2010-2015), identified men with RTOG grade 4 UAEs after RT for PCa. RT was classified as combined modality therapy (radical prostatectomy (RP) followed by external beam radiotherapy (EBRT), EBRT + low-dose brachytherapy (LDR), EBRT + high-dose brachytherapy (HDR), or other combinations of RT) or single modality RT...
July 28, 2016: BJU International
Leslie H Clark, Emma L Barber, Paola A Gehrig, John T Soper, John F Boggess, Kenneth H Kim
OBJECTIVE: Open radical hysterectomy followed by adjuvant radiation for cervical cancer has been associated with significant rates of morbidity. Radical hysterectomy is now often performed robotically. We sought to examine if the robotic platform decreased the morbidity associated with radical hysterectomy followed by adjuvant radiation. MATERIALS/METHODS: A retrospective cohort of patients with cervical cancer undergoing radical hysterectomy from 1995 to 2013 was evaluated...
October 2016: International Journal of Gynecological Cancer
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