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ureteral stricture

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https://www.readbyqxmd.com/read/28536083/preoperatively-dilated-ureters-are-a-specific-risk-factor-for-the-development-of-ureteroenteric-strictures-after-open-radical-cystectomy-and-ileal-neobladder
#1
Richard E Hautmann, Robert de Petriconi, Andreas Kahlmeyer, Melanie Enders, Bjoern Volkmer
PURPOSE: To evaluate preoperative ureteral obstruction as risk factor for the development of benign UEAS in patients undergoing open RC and INB diversion. MATERIAL AND METHODS: 953 patients with bilateral ileoureterostomy, performed between 01/86 and 03/09, form the study population with a non-refluxing (Le Duc) technique in 357 and a refluxing (Wallace type) technique in 596 consecutive patients. We defined UEAS as need for specific therapy (e.g. stenting, dilatation, reimplantation) or proven loss of renal function...
May 20, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28530630/-laparoscopic-management-of-ureteroileal-stenosis-long-term-follow-up
#2
Esteban Emiliani, Pavel Gavrilov, Olga Mayordomo, Josep Salvador, Joan Palou, Antonio Rosales, Humberto Villavicencio
OBJECTIVE: To describe the laparoscopic approach for uretero-ileal anastomosis strictures and to analyse our long term series. METHODS: A retrospective review was performed evaluating our series of patients with benign ureteroileal anastomosis strictures treated laparoscopically from 2011 to 2017. Demographics and perioperative data were obtained and analyzed. Complications were described with the Clavien-Dindo classification. The surgical technique was described and a literature review was performed...
May 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28530624/-buccal-mucosa-graft-for-the-treatment-of-long-ureteral-stenosis-bibliographic-review
#3
Gema Del Pozo Jiménez, Ignacio Castillón-Vela, Joaquín Carballido Rodríguez
OBJECTIVE: To perform a literature review on the use of buccal mucosa graft (BMG) in the treatment of extensive ureteral stenosis, according to the criteria of Evidence Based Medicine. METHODS: Pubmed search of published studies with the following keywords: "ureteral stricture treatment", "buccal mucosa graft ureteral treatment" and "buccal mucosa graft ureteroplasty", without time limits, in English and Spanish; 12 articles were identified with a total of 48 cases (46 patients) of BMG use in ureteral repair...
May 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28530617/-principles-of-urinary-tract-reconstructive-surgery
#4
Juan Gomez Rivas, Jesús Cisneros Ledo
INTRODUCTION: In the last 15 years, the role of laparoscopic surgery has progressively increased to include reconstructive procedures such as pyeloplasty and management of ureteral stricture, in addition to being a field in continuous development, this refers to the improvement of ergonomics, new instruments and new techniques. We present a review on basic features of laparoscopic reconstructive surgery in urology. ACQUISITION OF EVIDENCE: For this review, an exhaustive literature search was performed in PUBMED, MEDILNE, BioMed central and others, with the keywords: reconstructive surgery, urology, laparoscopy...
May 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28525664/near-infrared-fluorescence-with-indocyanine-green-for-diagnostics-in-urology-initial-experience
#5
Andrey O Morozov, Yuri G Alyaev, Leonid M Rapoport, Dmitrii G Tsarichenko, Eugene A Bezrukov, Denis V Butnaru, Eugene S Sirota
INTRODUCTION: Fluorescence imaging with indocyanine green is used in urology for the detection of sentinel lymph nodes and identification of prostate margins in radical prostatectomy for delineation of resection zone and selective clamping of vessels in partial nephrectomy; for identification and evaluation of length of ureteral strictures; for assessment of perfusion and viability of anastomoses during reconstructive stage of cystectomy. Safety of this technique is proven, while its diagnostic value and usefulness is still controversial...
May 16, 2017: Urologia
https://www.readbyqxmd.com/read/28507909/open-vesicocalicostomy-for-the-management-of-transplant-ureteral-stricture
#6
Margaret M Higgins, Jonathan P Walker, Michael F Daily, Shubham Gupta
A 59-year-old male developed a proximal stricture of his transplant ureter ten years after a living donor renal transplant. Endoscopic management was unsuccessful, and the patient was temporized with percutaneous nephrostomy tubes for months. Eventually, it became clear he would require surgical revision. Intraoperatively, complete fibrosis of the renal hilum, and intrarenal location of the pelvis precluded the planned pyelovesicostomy. A successful open vesicocalicostomy was performed, anastomosing a bladder flap to a lower pole calix...
July 2017: Urology Case Reports
https://www.readbyqxmd.com/read/28494578/early-and-late-ureteral-complications-after-renal-transplant-a-case-series-in-838-patients
#7
Francesca Manassero, Fabio Vistoli, Andrea Mogorovich, Maurizio DE Maria, Ugo Boggi, Cesare Selli
BACKGROUND: Ureteral strictures occur in approximately 3-8% of kidney transplant (KTx) recipients. They are usually a late event which needs surgical re-intervention with a subsequent increased risk of graft loss. This retrospective study presents a single-centre experience in managing ureteral complications using firstly a minimally invasive approach. METHODS: Between January 2000 and November 2012, 838 patients underwent KTx with Lich-Gregoire uretero-vesical anastomosis...
May 11, 2017: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/28479766/novel-technique-of-laparoscopic-extravesical-ureteric-reimplantation-in-primary-obstructive-megaureter
#8
Altaf Khan, Mujeebu Rahiman, Ashish Verma, Rahul Bhargava
OBJECTIVE: This study aims to demonstrate a novel laparoscopic technique of tapering megaureter without disrupting the blood supply and disconnecting the ureter. MATERIALS AND METHODS: Eight cases of primary obstructive megaureter in the age group of 14-22 years underwent laparoscopic extravesical ureteric reimplantation between August 2011 and July 2015 using our novel technique. Five patients had obstruction on left side and three on right side. Follow-up ultrasonography at 1 month and 3 months, voiding cystourethrogram (VCUG) at 3 months and intravenous urogram (IVU) at 6 months was obtained to assess the development of reflux and to look for adequate drainage of the obstructive ureter...
April 2017: Urology Annals
https://www.readbyqxmd.com/read/28472804/evaluation-with-decision-trees-of-efficacy-and-safety-of-semirigid-ureteroscopy-in-the-treatment-of-proximal-ureteral-calculi
#9
Eyup Burak Sancak, Muhammet Fatih Kılınç, Sait Can Yücebaş
PURPOSE: The decision on the choice of proximal ureteral stone therapy depends on many factors, and sometimes urologists have difficulty in choosing the treatment option. This study is aimed at evaluating the factors affecting the success of semirigid ureterorenoscopy (URS) using the "decision tree" method. MATERIALS AND METHODS: From January 2005 to November 2015, the data of consecutive patients treated for proximal ureteral stone were retrospectively analyzed...
May 5, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/28469309/the-negative-pyelogram-in-urinary-obstruction
#10
Onkar Singh, Partho Mukherjee, Antony Devasia
A case of chronic ureteral obstruction secondary to radiation-related ureteral stricture producing a classic "negative pyelogram" on intravenous urography is presented.
April 2017: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/28461995/is-a-ureteral-stent-required-after-use-of-ureteral-access-sheath-in-presented-patients-who-undergo-flexible-ureteroscopy
#11
Gastón Astroza, Manuel Catalán, Lucas Consigliere, Tomás Selman, José Salvadó, Francisco Rubilar
INTRODUCTION: Use of a ureteral access sheath (UAS) within flexible ureteroscopy (fURS) for the management of kidney and ureteral stones has shown improvements in its effectiveness, but it is also associated with increased risk of ureteral injury. Use of ureteral stent (US) after fURS is recommended by some authors, because of its role in reducing postoperative pain and preventing complications. Our objective is to determine if postoperative stenting is necessary in pre-stented patients that underwent fURS using UAS...
2017: Central European Journal of Urology
https://www.readbyqxmd.com/read/28411099/robot-assisted-transplanted-ureteral-stricture-management
#12
H M Abdul-Muhsin, S B McAdams, R N Nuñez, N N Katariya, E P Castle
OBJECTIVE: To assess the feasibility of robot assisted transplanted ureteral reimplantation as a minimally invasive alternative to open surgery. MATERIAL AND METHODS: Between August 2015 and March 2016, five patients presented with transplanted ureteral strictures after failure of previous endoscopic management. All patients underwent robot assisted ureteral reimplantation. Patients' demographics, perioperative outcomes and complications are reported. RESULTS: All patients presented with deterioration of kidney function with or without recurrent urinary tract infection...
April 11, 2017: Urology
https://www.readbyqxmd.com/read/28402160/ureteroscopy-assisted-laparoscopic-segmental-resection-of-ureteral-stricture-with-a-modified-flank-position-clinical-experience
#13
Sheng-Chun Hung, Kun-Yuan Chiu, Chen-Li Cheng, Yen-Chuan Ou, Hao-Chung Ho, Shian-Shiang Wang, Chuan-Shu Chen, Jian-Ri Li, Chun-Kuang Yang, Li-Wen Chang
PURPOSE: To share the surgical technique that possesses the advantage of a perioperative ureteroscope without position change, which allows for a laparoscopic segmental resection of the ureteral stricture to be performed more precisely. PATIENTS AND METHODS: Between 2006 January and 2015 December, 10 patients with a ureteral stricture received a laparoscopic segmental resection and ureteroureterostomy in our clinical institute. The etiology included stone, endometriosis, crossing vessel, and idiopathic benign ureteral polyp...
April 12, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28401476/robotic-buccal-ureteroplasty-a-review-of-the-current-literature
#14
REVIEW
Benjamin Waldorf, Ziho Lee, Laura Kidd, Joshua Kaplan, Andrew Harris, Michael Metro, Jeffrey Liu, Daniel Eun
PURPOSE OF REVIEW: This study aimed to provide an overview of the literature on buccal mucosal ureteroplasty for ureteral stricture disease, with a specific focus on the application of the robotic platform to buccal ureteroplasty. RECENT FINDINGS: In our review, we highlight the results of Zhao et al. from the New York University School of Medicine Department of Urology, as well as our own results from Temple University Hospital. Zhao et al. published the first series of four patients who underwent robotic buccal ureteroplasty...
May 2017: Current Urology Reports
https://www.readbyqxmd.com/read/28394517/-technical-features-of-intestinal-ureteroplasty-art-6-simultaneous-ureteral-and-bladder-substitution
#15
B K Komyakov, A I Novikov, V A Ochelenko, B G Guliev, T Kh Al-Attar, M V Onoshko
AIM: To present the results and technical features of different methods of simultaneous ileal ureteral and bladder substitution. MATERIALS AND METHODS: From 2001 to 2016, 154 patients (mean age 52+/-9.2 years) underwent ileal and appendicular ureteroplasty. Of them, 70 (45.4%) were men and 84 (54.6%) women. Among them, 49 (31.8%) patients underwent ureteroplasty concurrently with orthotopic ileocystoplasty. The Studers ileal-ureter cystoplasty and Y-shaped bladder and ureteral reconstruction were performed in 38 (77...
April 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28366657/normal-porcine-ureter-retains-lumen-wall-integrity-but-not-patency-following-catheter-directed-irreversible-electroporation-imaging-and-histologic-assessment-over-28-days
#16
Govindarajan Srimathveeravalli, Francois Cornelis, Thomas Wimmer, Sebastien Monette, Simon Y Kimm, Majid Maybody, Stephen B Solomon, Jonathan A Coleman, Jeremy C Durack
PURPOSE: To evaluate the effect of catheter-directed irreversible electroporation (IRE) on the integrity, patency, and function of the normal porcine ureter. MATERIALS AND METHODS: A catheter-mounted electrode was used to perform fluoroscopy-guided IRE in 8 healthy pigs. Two unilateral ablations (90 pulses at 2,000 V, 100 μs) were performed in each animal in the proximal and distal ureter. Serum creatinine measurements and contrast-enhanced computed tomography imaging were performed at 1, 7, 14, 21, and 28 days after IRE, and findings were compared with baseline values by Student t test...
June 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28349123/outcomes-of-kidney-transplant-recipients-with-percutaneous-ureteral-interventions-a-single-center-study
#17
Dushyanth Srinivasan, John T Stoffel, Chrystina James, Kori Bradley, Randall S Sung
BACKGROUND: Long-term outcomes of kidney transplantation recipients with percutaneous ureteral management of transplant ureteral complications are not well characterized. METHODS: Electronic records of 1753 recipients of kidney-alone transplant between January 2000 and December 2008 were reviewed. One hundred thirty-one patients were identified to have undergone percutaneous ureteral management, with placement of percutaneous nephrostomy tube or additional intervention (nephroureteral stenting and/or balloon dilation)...
January 2017: Transplantation Direct
https://www.readbyqxmd.com/read/28264591/lubriglide-sequential-ureteral-dilators-%C3%A2-a-safe-and-effective-method-of-ureteral-dilation
#18
Christopher Mitchell, Joseph Kuebker, Benjamin McCormick, Tracy Marien, S Duke Herrell, Nicole L Miller
INTRODUCTION: During ureteroscopy (URS), ureteral dilation may be required to increase the likelihood of accessing the ureter to complete the procedure. Thus, we sought to assess the safety and efficacy of using Lubriglide sequential ureteral dilators(®) (Boston Scientific) to promote primary URS, without need for prestenting. PATIENTS AND METHODS: Retrospective review was performed of a consecutive series of patients undergoing primary URS by a single surgeon (N...
April 4, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28259810/robotic-ileal-interposition-for-radiation-induced-ureteral-stricture-disease
#19
Adam S Baumgarten, Bhavik B Shah, Trushar B Patel, Lucas R Wiegand
OBJECTIVE: To present a novel surgical concept using preoperative imaging to estimate length needed for ileal segment. This enables robotic ileal interposition to be completed with only 1 position change during surgery. MATERIALS AND METHODS: The index patient is a 69-year-old woman with a history of stage IIIB cervical cancer treated with chemotherapy and radiation 5 years prior to presentation. The patient subsequently developed a long segment stricture of the left ureter, which had been managed with ureteral stents...
March 1, 2017: Urology
https://www.readbyqxmd.com/read/28248023/-pyeloureteral-stenting-using-nitinol-stents
#20
B G Guliev, A M Zagazezhev
AIM: To test the effectiveness of nitinol stents in restoring patency of pyeloureteral segment (PUS). MATERIALS AND METHODS: Endoureteral nitinol stents were used in 54 patients. The indications for stenting were recurrent strictures of upper urinary tract and ureteral tumor obstruction in 34 and 20 patients, respectively. In 9 (16.6%) of them, including 4 women and 5 men aged 28-65 years, stenting was performed for extensive recurrent PUS strictures. In 8 patients extensive strictures resulted from various surgical interventions on the PUS...
November 2016: Urologii︠a︡
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