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ureteral stenosis

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https://www.readbyqxmd.com/read/28530630/-laparoscopic-management-of-ureteroileal-stenosis-long-term-follow-up
#1
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/28530629/-laparoendoscopic-single-site-less-ureteral-reimplantation
#2
Pedro M Cabrera Castillo, Felipe Cáceres Jiménez
OBJECTIVE: To present in detail our surgical technique and to show our initial experience with ureteral reimplantation using the transumbilical LESS approach to treat patients with ureteral stenosis secondary to various diseases and surgical complications. METHODS: We performed 7 ureteral reimplantations from February 2012, using the multichannel Richard- Wolf (KeyPort) platform placed transumbilical by a small 2-2,5 cm transversal incision. We always use a 3.5 mm minilaparoscopy accessory trocar in the right iliac fossa, that is crucial to perform the laparoscopic suturing safely for the patient and in an optimal time...
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/28530623/-laparoscopic-boari-flap-ureteral-reimplantation
#4
Ignacio Castilló-Vela, Gema Del Pozo Jiménez, Jorge Turo Antona, David Vázquez Alba, Javier Sáenz Medina, Joaquín Carballido Rodríguez
OBJECTIVES: To report our initial experience with laparoscopic Boari flap ureteral reimplantation and to review the main technical elements in ureteral reconstructive surgery. METHODS: In a 10-year period we performed 23 laparoscopic ureteral reimplantations. Three cases required a Boari flap. Two patients presented ureteral stenosis above the iliac vessels and the third one a urothelial tumor of the pelvic ureter. RESULTS: Two cases were completed laparoscopically; the third one was electively converted to open surgery to avoid prolonged OR time...
May 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28530621/-laparoscopic-ureteral-reimplantation-in-the-treatment-of-urinary-tract-complications-after-renal-transplantation
#5
Juan Soto Villalba, Jesús Rosety Rodríguez, Cristina León Delgado, María José Ledo Cepero, Patricia Parra Serván, José Luis Álvarez-Ossorio Fernández
OBJECTIVES: Laparoscopic ureteral reconstructive surgery is routinely performed , because it demonstrated efficacy and safety profiles similar to open surgery in expert hands. The most frequent surgical complications after transplant are urological, appearing in up to 12,5% of the cases; they can compromise graft function and mortality. The most frequent ones include ureterovesical anastomosis stenosis (2,5-7,5%) and vesicoureteral reflux (0,4-2,2), which present in up to 80% of the cases...
May 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28466075/the-use-of-cook-resonance-metallic-ureteral-stent-in-cases-of-obstructive-uropathy-from-persistent-neoureteral-stenosis-following-kidney-transplantation
#6
Victoria Stainer, Rachel Jones, Sanjay Agawal, Iqbal S Shergill
Introduction: Following kidney transplantation, persistent cases of obstructive uropathy from neoureteral stenosis, at the reimplantation site, may require management with permanent, long-term Double-J stenting, following failed open surgical and minimally invasive procedures. We report our experience of the use of Cook Resonance(®) metallic ureteral stent to manage such cases endourologically. Materials and Methods: Medium-term follow-up of two cases requiring long-term ureteral stenting. Medical records, operative details, and radiologic data were reviewed...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/28457393/ureteral-stenosis-after-renal-transplantation-a-single-center-10-year-experience
#7
D Gil-Sousa, D Oliveira-Reis, F Teves, P Príncipe, A Castro-Henriques, J Soares, A Fraga, M Silva-Ramos
BACKGROUND: Kidney transplantation (KT) is the definitive treatment for ESRD. Ureteral stenosis (US) is one of the most common urologic complications and has been reported in 2.6%-15% of KTs. METHODS: We reviewed data for 973 consecutive KT procedures performed at our center from January 2004 to September 2014, with evaluation of US management and recurrence rate. RESULTS: The 973 KTs were performed with the use of the direct ureterovesical (UV) implantation Paquin technique, and the mean follow-up time was 44...
May 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28451407/rare-giant-primary-ureteral-polyp-a-case-report-and-literature-review
#8
Yunlin Cai, Zongping Zhang, Xiaofeng Yue
Primary ureteral fibroepithelial polyps (UFPs) are rare benign tumors of mesodermal origin. The majority UFPs are observed in the proximal part of the ureter and most commonly on the left side. The mean diameter of UFP is reported to be <5 cm. We herein present a rare case of a long primary ureteral polyp originating from the lower ureter in a 53-year-old woman. Following computed tomography, magnetic resonance imaging, retrograde pyelography and ureteroscopic examination, a preliminary diagnosis of giant primary lower ureteral polyp protruding into the bladder was obtained...
March 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28398101/robot-assisted-pyeloplasty-and-pyelolithotomy-in-patients-with-ureteropelvic-junction-stenosis
#9
Pernille Hammershøj Jensen, Kasper Drimer Berg, Nessn H Azawi
OBJECTIVE: Approximately one in five patients with ureteropelvic junction stenosis (UPJS) also present with renal or ureteral stones. For patients with UPJS, the European Association of Urology guidelines currently recommend that robot-assisted pyeloplasty (RAP) and pyelolithotomy are performed as two separate procedures. The aim of the present study was to evaluate the feasibility and safety of RAP with concomitant pyelolithotomy (RAP + P) in patients diagnosed with UPJS and renal stones...
April 11, 2017: Scandinavian Journal of Urology
https://www.readbyqxmd.com/read/28394518/-the-study-of-effectiveness-of-polyhydroxyalkanoates-based-biodegradable-stents-in-ureteropelvic-segment-pyeloplasty
#10
M P Myltygashev, A N Boyandin, A A Shumilova, F P Kapsargin, E I Shishatskaya, A K Kirichenko, T G Volova
INTRODUCTION: Among urologic diseases, ureteropelvic segment stenosis with hydronephrosis is a common indication for instrumental or surgical correction. The restriction of urine flow with dilatation proximal to obstruction develops in 6.5-37% of cases at different times after the ureteral reconstruction. All this urges to develop and improve stents and search for effective ways to place stents and control their function. AIM: To investigate the effectiveness of polyhydroxyalkanoates based biodegradable stent compared with a commercial analogue in upper urinary tract drainage after ureteropelvic segment pyeloplasty...
April 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28363728/pelvic-radiotherapy-in-the-setting-of-rheumatoid-arthritis-refining-the-paradigm
#11
T Felefly, R Mazeron, A Huertas, C H Canova, P Maroun, M Kordahi, P Morice, É Deutsch, C Haie-Méder, C Chargari
PURPOSE: Conflicting results concerning the toxicity of radiotherapy in the setting of rheumatoid arthritis were reported in literature. This work describes the toxicity profiles of patients with rheumatoid arthritis undergoing pelvic radiotherapy for gynecologic malignancies at our institution. PATIENTS AND METHODS: Charts of patients with rheumatoid arthritis who underwent pelvic radiotherapy for cervical or endometrial cancer in a curative intent at the Gustave-Roussy Cancer Campus between 1990 and 2015 were reviewed for treatment-related toxicities...
March 28, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28340825/should-interventional-radiology-or-open-surgery-be-the-first-choice-for-the-management-of-ureteric-stenosis-after-transplantation-dual-center-study
#12
C Simsek, S M Dogan, T Piskin, G Okut, K Cayhan, A Aykas, E Tatar, A Uslu
BACKGROUND: Ureteric stenosis (US) is the most common urologic complication after kidney transplantation. In this dual-center retrospective study we compared the efficacy and safety of open surgery versus interventional radiology for the management of US. METHODS: From 2009 to January 2016, US was treated by surgical revision in 22 (7.8%) out of 281 recipients at one center (group 1) and managed by percutaneous nephrostomy with antegrade nephroureteral stenting (PNAS) in 22 (14...
April 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28298471/bk-polyomavirus-clinical-aspects-immune-regulation-and-emerging-therapies
#13
REVIEW
George R Ambalathingal, Ross S Francis, Mark J Smyth, Corey Smith, Rajiv Khanna
BK polyomavirus (BKV) causes frequent infections during childhood and establishes persistent infections within renal tubular cells and the uroepithelium, with minimal clinical implications. However, reactivation of BKV in immunocompromised individuals following renal or hematopoietic stem cell transplantation may cause serious complications, including BKV-associated nephropathy (BKVAN), ureteric stenosis, or hemorrhagic cystitis. Implementation of more potent immunosuppression and increased posttransplant surveillance has resulted in a higher incidence of BKVAN...
April 2017: Clinical Microbiology Reviews
https://www.readbyqxmd.com/read/28250690/aortoiliac-reconstruction-in-the-setting-of-in-stent-restenosis
#14
H S Natraj Setty, T R Raghu, B C Srinivas, C M Nagesh, Babu Reddy, Jayashree Kharge, B K Geetha, B N Krishnamurthy, Shivanand Patil, C N Manjunath
Complex iliac artery obstructions, particularly bilateral stenosis or total iliac artery occlusions, are usually treated with aortofemoral or aortobifemoral graft surgery. However, surgical treatment is associated with 3% mortality rate and significant morbidity such as intestinal ischemia, spinal cord injury, and ureteral damage. Percutaneous interventions of aortic bifurcation offer a promising alternative to surgery with potentially lower morbidity and mortality risk. We report a case of peripheral artery disease who had underwent right transfemoral iliac angioplasty with femoropopliteal bypass presented again with bilateral lower limb ischemia, who was successfully treated with stent implantation with the kissing balloon technique...
January 2017: Journal of Natural Science, Biology, and Medicine
https://www.readbyqxmd.com/read/28220579/long-term-results-of-ileal-ureteric-replacement-a-25-year-single-centre-experience
#15
Arkadius Kocot, Charis Kalogirou, Daniel Vergho, Hubertus Riedmiller
OBJECTIVE: To report the long-term outcomes of ileal ureteric replacement (IUR) in complex reconstruction of the urinary tract. PATIENTS AND METHODS: From 1991 to 2016, IUR was performed in 157 patients with structural or functional ureteric loss. In 52 patients, bilateral IUR became necessary. Implantation sites where either the native urinary bladder (n = 79) or intestinal reservoirs (n = 78). In the latter group, the technique was used at the time of primary urinary diversion (n = 34), in a secondary approach (n = 29), and in undiversion or conversion procedures (n = 15)...
February 20, 2017: BJU International
https://www.readbyqxmd.com/read/28126357/hepatoblastoma
#16
Divya Sharma, Girish Subbarao, Romil Saxena
Hepatoblastoma is the most common primary malignant hepatic tumor of infancy and childhood, occurring predominantly in the first two years of life. The management of hepatoblastoma has changed markedly over the last 3 decades; neoadjuvant chemotherapy is now standard, particularly in unresectable tumors resulting in considerable preoperative tumor shrinkage and sometimes near total ablation of the tumor. A 20 month old infant was incidentally found to have a 7.6cm right sided retroperitoneal tumor on routine screening ultrasonography for left ureteral stenosis...
March 2017: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/28111805/ureteric-complications-in-recipients-of-kidneys-from-donation-after-circulatory-death-donors
#17
Trina-Jo Mah, Dermot H Mallon, Oliver Brewster, Kourosh Saeb-Parsy, Andrew J Butler, J Andrew Bradley, Vasilis Kosmoliaptsis
A large increase in the use of kidneys from donation after circulatory death (DCD) donors prompted us to examine the impact of donor type on the incidence of ureteric complications (UCs; ureteric stenosis, urinary leak) after kidney transplantation. We studied 1072 consecutive kidney transplants (DCD n=494, live donor [LD] n=273, donation after brain death [DBD] n=305) performed during 2008-2014. Overall, there was a low incidence of UCs after kidney transplantation (3.5%). Despite a trend toward higher incidence of UCs in DCD (n=22, 4...
April 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28093632/ureterocystoneostomy-in-complex-oncological-cases-with-an-uebelhoer-modified-boari-bladder-flap
#18
Jan P Radtke, Nina Korzeniewski, Johannes Huber, Celine D Alt, Sascha Pahernik, Boris A Hadaschik, Markus Hohenfellner, Dogu Teber
PURPOSE: The study aims to describe the technique and analyze the outcome of an arcuated bladder incision with building of a triangular flap, first described by Uebelhoer (UBBF), as a modification of the classical rectangular Boari bladder flap (BBF), that is often viable, but can present difficulties, such as reduced flap vascularization and mobility in pretreated patients. METHODS: Twelve consecutive patients with distal or mid ureteral leakage or stenosis, that underwent UBBF, were retrospectively analyzed...
January 16, 2017: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/28051910/transperitoneal-intravesical-technique-for-laparoscopic-ureteral-reimplantation-to-treat-terminal-ureteral-stenosis
#19
Bing-Sheng Li, Yao He, Zhi Chen, Zhao-Hui Wang, Zhi-Qiang Wen, Xiang Chen
OBJECTIVE: To describe a newly developed transperitoneal intravesical technique for laparoscopic ureteral reimplantation in patients with terminal ureteral stenosis. METHODS: Between July 2009 and May 2015, laparoscopic transperitoneal intravesical ureteral reimplantation was performed in 16 patients with terminal ureteral stenosis without vesicoureteral reflux (VUR). An incision was made in the superior bladder wall of the affected side with an electric hook. The bladder mucosa was then circumferentially cut away from the ureteral orifice to a distance of 0...
January 4, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/27998045/how-can-a-vascular-surgeon-help-in-kidney-transplantation
#20
Anne Lejay, Fabien Thaveau, Sophie Caillard, Yannick Georg, Bruno Moulin, Philippe Wolf, Bernard Geny, Nabil Chakfe
Kidney transplantation is a surgical procedure involving both vascular and ureteric anastomoses. As a matter of fact, it can be performed either by urologists or vascular surgeons. However, vascular surgeon's expertise can be helpful at different times. In the present paper we describe how can vascular surgeons help at the different stages of kidney transplantation process in modern care: 1) before kidney transplantation for recipient preparation in order to allow subsequent graft implantation, either by performing percutaneous embolization of renal arteries in the setting of polycystic kidney disease or treatment of aneurysmal or occlusive lesions that would contra-indicate graft implantation; 2) at the time of surgery graft back table preparation and repair; and 3) after surgery for long-term follow-up, including transplant renal artery stenosis treatment or transplant nephrectomy...
April 2017: Journal of Cardiovascular Surgery
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