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ureteral stricture

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https://www.readbyqxmd.com/read/28070723/anorectal-malformations-definitive-surgery-during-adulthood
#1
M P J Lopez, V I Encila, S G Alamo, H J Monroy Iii, M F T Roxas
BACKGROUND: Anorectal malformations (ARMs) are rarely seen in adults, since majority of cases are corrected in infancy or childhood. The aim of this study was to describe the profile of patients who underwent definitive surgery to correct their ARM in adulthood, and to discuss the outcomes of surgery (morbidity, mortality, and function). METHODS: This retrospective study included patients 18 years old and above, managed surgically by the Division of Colorectal Surgery at the Philippine General Hospital, University of the Philippines, Manila, from January 1, 2004, to December 31, 2012...
January 9, 2017: Techniques in Coloproctology
https://www.readbyqxmd.com/read/28068364/meta-analysis-of-stenting-versus-non-stenting-for-the-treatment-of-ureteral-stones
#2
Hai Wang, Libo Man, Guizhong Li, Guanglin Huang, Ning Liu, Jianwei Wang
BACKGROUND AND AIM: Ureteroscopic lithotripsy (URL) and extracorporeal shock wave lithotripsy (ESWL) are two widely used methods for the treatment of ureteral stones. The need for ureteral stenting during these procedures is controversial. In this meta-analysis, we evaluated the benefits and disadvantages of ureteral stents for the treatment of ureteral stones. METHODS: Databases including PubMed, Embase and Cochrane library were selected for systematic review of randomized controlled trials (RCTs) comparing outcomes with or without stenting during URL and ESWL...
2017: PloS One
https://www.readbyqxmd.com/read/28057996/a-case-report-on-buccal-mucosa-graft-for-upper-ureteral-stricture-repair
#3
Vilas Pandurang Sabale, Naveen Thakur, Sharad Kumar Kankalia, Vikram Pramod Satav
Management of ureteric stricture especially long length upper one-third poses a challenging job for most urologists. With the successful use of buccal mucosa graft (BMG) for stricture urethra leads the foundation for its use in ureteric stricture also. A 35-year-old male diagnosedcase of left upper ureteric stricture, postureteroscopy with left percutaneous nephrostomy (PCN) in situ. Cysto-retrograde pyelography and nephrostogram done simultaneously suggestive of left upper ureteric stricture of 3 cm at L3 level...
October 2016: Urology Annals
https://www.readbyqxmd.com/read/28039051/pediatric-robot-assisted-redo-pyeloplasty-with-buccal-mucosa-graft-a-novel-technique
#4
Jennifer J Ahn, Michael E Shapiro, Jonathan S Ellison, Thomas S Lendvay
OBJECTIVE: To report a novel approach of pediatric robot-assisted redo pyeloplasty with buccal mucosa graft (BMG). METHODS: An IRB-approved retrospective review of all patients undergoing robot-assisted redo pyeloplasty with BMG at our institution was performed. OPERATIVE DETAILS: For all patients, the following ports were used: one 8.5mm camera, two 8mm robotic, and one 5mm assistant. Initial dissection was performed laparoscopically and robotically, and the ureter was incised longitudinally along the anterior surface...
December 27, 2016: Urology
https://www.readbyqxmd.com/read/28005154/-pathogenesis-of-urological-complications-after-radiation-therapy
#5
Y Tolkach, G Kristiansen
Radiation therapy is a treatment modality that is often used in the uro-oncological setting. The common indication for the radiation therapy in the urological sphere is prostate cancer, whether it is used primarily as a radical approach, or postoperatively as adjuvant or salvage therapy. All urological organs are sensitive to radiation injury with the urinary bladder being the most susceptible with a typical cascade including acute and late changes, arising in the dose-dependent manner. The common indication for radiation therapy in urology is prostate cancer, which collaterally affects the urinary bladder and rarely urethra (especially the bulbo-membranous urethra)...
December 22, 2016: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/28004123/-ureteral-stricture-as-a-late-complication-of-radiotherapy-possible-treatment-options
#6
J Kranz, A S Brandt, P Anheuser, B Reisch, J Steffens, S Roth
Ureteral strictures are uncommon complications of radiotherapy which are often recognized late. Their consequences range from harmless dilatation of the ureter to loss of renal function and potential life-threatening urosepsis.Therapy of radiogenic ureteral stricture is a challenging task for every urologist. Several surgical strategies including minimally invasive procedures, reconstruction and partial or complete replacement of the ureter are available.This article provides an overview of the various options in the treatment of radiogenic stricture of the ureter, focusing on the use of ileum and colon segments for ureteral substitution...
December 21, 2016: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/27988516/laparoscopic-extravesical-submucosal-tunneling-ureteroneocystostomy-combined-with-psoas-hitch-for-medium-length-distal-ureteral-defects-in-adults
#7
Huijie Gong, Yiqin Lu, Yongji Yan, Zhenqi Wu, Wenfeng Gao, Haisheng Cheng, Yabing Wu, Yanfeng Li, Xuetao Ma, Jingbo Liu, Linfeng Dai
OBJECTIVE: This study aims to describe the technique and feasibility of laparoscopic submucosal tunneling ureteroneocystostomy in combination with psoas hitch to restore urinary tract continuity in patients showing medium-length distal ureteral defects. MATERIALS AND METHODS: From January 2012 to April 2016, a total of 13 patients (4 males and 9 females) with a mean age of 37 years were performed with the laparoscopic operation of ureteral submucosal tunneling reimplantation combined with psoas hitch...
December 17, 2016: Urologia Internationalis
https://www.readbyqxmd.com/read/27904125/use-of-corticosteroids-for-urinary-tuberculosis-patients-at-risk-of-developing-ureteral-obstruction
#8
Kosuke Matsui, Akitsugu Furumoto, Kojiro Ohba, Kota Mochizuki, Takeshi Tanaka, Masahiro Takaki, Konosuke Morimoto, Koya Ariyoshi
A 77-year-old man with urinary tuberculosis developed post renal anuria two days after starting an anti-tuberculosis drug regimen. He had bilateral hydronephrosis, and his right kidney was radiologically diagnosed to be non-functioning. A transurethral catheter was placed in the left ureter. No improvement in the ureteral stricture was noted during the initial three weeks of treatment; however, the stricture did thereafter improve after the commencement of oral prednisolone. In cases of urinary tuberculosis, ureteral stricture can deteriorate and result in ureteral obstruction during anti-tuberculosis treatment...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27900939/incidence-and-implications-of-silent-hydronephrosis-following-percutaneous-nephrolithotomy%C3%A2
#9
Lawrence Dagrosa, Rachel Moses, Vernon M Pais
OBJECTIVE: While routine renal imaging following ureteroscopy for urinary calculi has been recommended to screen for asymptomatic "silent" obstruction, the rate of silent obstruction following percutaneous nephrolithotomy (PCNL) remains poorly defined, and no consensus recommendations exist on routine postoperative imaging. At our institution, we sought to assess the incidence of silent hydronephrosis (SH), as a screen for obstruction, following PCNL. METHODS: The records of all 162 patients who met study inclusion criteria were reviewed...
January 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/27884883/bilateral-ureteric-obstruction-during-in-vitro-fertilisation-therapy-in-a-patient-with-complex-surgically-managed-crohn-s-disease
#10
Christopher Charles Khoo, Nikhil Ahluwalia, Jan Grace, Arun Sahai
A 37-year-old woman receiving in vitro fertilisation (IVF) treatment presented with lethargy, fevers and anuria. Her background included complex surgically managed Crohn's disease and mild right-sided hydronephrosis (with no evidence of obstruction on MAG3 renogram). On examination, she had a distended abdomen with generalised tenderness. Blood tests revealed an acute kidney injury and confirmed sepsis. She was found to have bilateral ureteric obstruction with worsening of the right-sided hydronephrosis and new-onset left-sided hydronephrosis secondary to bilateral ovarian masses, diagnosed as mild ovarian hyperstimulation syndrome (OHSS)...
November 24, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27860431/ureteral-reconstruction-with-reinforced-collagen-scaffolds-in-a-porcine-model
#11
Paul de Jonge, Vasileios Simaioforidis, Paul Geutjes, Egbert Oosterwijk, Wout Feitz
Repair of long ureteral defects often requires extensive surgical procedures and graft tissue which is associated with various complications, e.g. graft site morbidity or lack of suitable tissue. Tissue engineering might provide an alternative therapeutic approach in these cases. Reinforced tubular collagen-Vicryl scaffolds (l = 5 cm, lumen Ø = 6 mm, thickness = 3 mm) were developed with or without vascular endothelial growth factor and basic fibroblast growth factor and evaluated in a pre-clinical porcine model...
November 16, 2016: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/27852120/kim-1-is-a-potential-urinary-biomarker-of-obstruction-results-from-a-prospective-cohort-study
#12
Daniel Olvera-Posada, Thamara Dayarathna, Marie Dion, Husain Alenezi, Alp Sener, John D Denstedt, Stephen E Pautler, Hassan Razvi
INTRODUCTION: Partial or complete obstruction of the urinary tract is a common and challenging urological condition that may occur in patients of any age. Serum creatinine is the most commonly used method to evaluate global renal function, although it has low sensitivity for early changes in the glomerular filtration rate or unilateral renal pathology. Hence, finding another measurable parameter that reflects the adaptation of the renal physiology to these circumstances is important. Several recent studies have assessed the use of new biomarkers of acute kidney injury (AKI), but the information among patients with stone disease and those with obstructive uropathy is limited...
December 19, 2016: Journal of Endourology
https://www.readbyqxmd.com/read/27843217/robot-assisted-pyeloplasty-for-pelvi-ureteric-junction-obstruction-of-lower-moiety-in-partial-duplex-system-a-technical-challenge
#13
Girdhar S Bora, Kalpesh Parmar, Ravimohan S Mavuduru
Management of pelvi-ureteric junction obstruction (PUJO) in a duplex system is technically challenging as dissection at the pelvis may jeopardize the vascularity of the normal moiety ureter. Anastomosing the pelvis to the one single ureter will have a risk of future development of stricture which then will risk both the moieties. Robotic assistance enables appropriate tissue dissection; minimal handling of normal ureter and precision in suturing, overcoming the potential challenges involved in the minimally invasive management of such complex cases...
October 2016: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/27825514/lessons-from-151-ureteral-reimplantations-for-postcystectomy-ureteroenteric-strictures-a-single-center-experience-over-a-decade
#14
Vignesh T Packiam, Vijay A Agrawal, Andrew J Cohen, Joseph J Pariser, Scott C Johnson, Gregory T Bales, Norm D Smith, Gary D Steinberg
OBJECTIVES: Ureteroenteric anastomotic strictures are common after cystectomy with urinary diversion. Endoscopic treatments have poor long-term success, although ureteral reimplantation is associated with morbidity. Predictors of successful open repair are poorly defined. Our objective was to characterize outcomes of ureteral reimplantation after cystectomy and identify risk factors for stricture recurrence. PATIENTS AND METHODS: We performed a retrospective review of 124 consecutive patients with a total of 151 open ureteral reimplantations for postcystectomy ureteroenteric strictures between January 2006 and December 2015...
November 4, 2016: Urologic Oncology
https://www.readbyqxmd.com/read/27789323/-results-of-conservative-management-of-emphysematous-pyelonephritis
#15
Ahmed Saadi, Haroun Ayed, Abderrazak Bouzouita, Mohamed Cherif, Walid Kerkeni, Selim Selmi, Riadh Ben Slama, Amine Derouiche, Mohamed Chebil
INTRODUCTION: Emphysematous pyelonephritis (EPN) is a rare and severe, necrotizing infection of the kidney. Diagnosis should be precocious based on computed tomography (CT). Its management remains controversial and its treatment is currently increasingly conservative. The aim of this paper is to discuss the conservative treatment of this disease through our experience in 21 patients. MATERIAL AND METHODS: A retrospective analysis including 21 patients managed conservatively for an emphysematous pyelonephritis in our department from January 2010 to April 2015...
December 2016: Néphrologie & Thérapeutique
https://www.readbyqxmd.com/read/27788801/ureteral-complications-in-kidney-transplantation-analysis-and-management-of-853-consecutive-laparoscopic-living-donor-nephrectomies-in-a-single-center
#16
Y S Choi, K S Kim, S W Choi, W J Bae, S H Hong, J Y Lee, J C Kim, S W Kim, B H Chung, C W Yang, J I Kim, I S Moon, H J Cho
BACKGROUND: We report the incidence and nature of ureteral and surgical complications in our series of 853 consecutive living-donor renal transplants after laparoscopic living-donor nephrectomy. The aim of this study was to analyze the therapeutic approaches to ureteral complications in kidney transplantations and their relationship with recipient outcome. METHODS: The medical records of patients who underwent kidney transplantation from 2000 to 2014 were reviewed retrospectively...
October 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27785465/ureteroiliac-artery-fistula-caused-by-a-metallic-memokath-ureteral-stent-in-a-radiation-induced-ureteral-stricture
#17
Krishanu Das, Flavio Ordones, Sumudu Welikumbura, Nicholas R Brook
Background: Memokath 051™ stents are increasingly used for management of benign and malignant ureteral strictures refractory to management with single or tandem polymeric Double-J ureteral stents. Migration, encrustation, and difficulty in extraction during stent exchange are the chief problems reported so far with these thermoexpandable metallic stents. We report an unusual complication of ureteroexternal iliac artery fistula (UEAF) caused by Memokath stent inserted for radiation-induced ureteral stricture...
2016: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/27783146/collagen-cell-carriers-seeded-with-human-urothelial-cells-for-urethral-reconstructive-surgery-first-results-in-a-xenograft-minipig-model
#18
Stefan Aufderklamm, Martin Vaegler, Alexandra Kelp, Sabine Maurer, Leon Gustafsson, Jens Mundhenk, Silke Busch, Lisa Daum, Arnulf Stenzl, Bastian Amend, Karl-Dietrich Sievert
PURPOSE: Urethral strictures are a common disease of the lower urinary tract in men. At present, the use of buccal mucosa is the method of choice for long or recurrent strictures. However, autologous tissue-engineered grafts are still under investigation for reconstructive urological surgery. The aim of this pilot study was to evaluate the use of human urothelial cells (HUC) seeded on bovine collagen type I-based cell carriers (CCC) in an animal model and to evaluate short-term outcome of the surgical procedure...
October 25, 2016: World Journal of Urology
https://www.readbyqxmd.com/read/27772622/bk-and-other-polyomaviruses-in-kidney-transplantation
#19
REVIEW
Jennifer Trofe-Clark, Deirdre Sawinski
For more than 40 years, polyomaviruses (BK virus and JC virus) have been known to cause disease in human beings. Recently, 11 new polyomaviruses were discovered. However, the majority of these viruses are rare in renal transplant recipients and BK and JC viruses remain the most important polyomaviruses to impact this population. BK virus presents as BK virus nephropathy and has, in rare instances, been associated with hemorrhagic cystitis or ureteral strictures. JC virus can cause progressive multifocal leukoencephalopathy or nephropathy in this population as well, but is uncommon...
September 2016: Seminars in Nephrology
https://www.readbyqxmd.com/read/27768519/five-year-single-center-experience-for-retroperitoneoscopic-ureterolithotomy
#20
Yong Sung Won, Seung-Ju Lee, Hee Youn Kim, Dong Sup Lee
INTRODUCTION: Narrow working space is a major problem to overcome during retroperitoneoscopic ureterolithotomy. We evaluated initial 5 years experience of retroperitoneoscopic ureterolithotomy for large impacted upper ureteral calculi. PATIENTS AND METHODS: Between January 2011 and December 2015, a total of 37 consecutive patients were evaluated. A 12-mm camera port at middle of midaxillary line and two 5-mm working ports in posterior axillary line were created...
October 21, 2016: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
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