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https://www.readbyqxmd.com/read/28932691/percutaneous-nephrolithotomy-ileal-conduit-lithotripsy-and-litholapaxy-for-a-neglected-encrusted-ureteral-stent
#1
Andrés Gutierrez, Julián Chavarriaga, María A Ocampo, Carlos Hernandez
Urolithiasis can result as a complication of urinary diversión, favored by urinary stasis, intestinal mucus, urinary tract bacteriuria, the metabolic derangements and the presence of foreign bodies. We present a 52- year-old male who underwent radical cystectomy with construction of a Bricker uretero-ileostomy. 5 years later he was found with a forgotten ureteral stent, a 6 cm calculi occupying the whole ileal conduit and a 13 mm calculi in the left renal pelvis. We present our experience in the successful endourological management of an encrusted neglected ureteral stent in an ileal conduit, achieving a stone-free status without complications...
November 2017: Urology Case Reports
https://www.readbyqxmd.com/read/28931344/a-randomized-controlled-trial-comparing-antimicrobial-silver-sulfadiazine-coated-ureteral-stents-with-non-coated-stents
#2
Ahmed R El-Nahas, Mohammed Lachine, Essam Elsawy, Ahmed Mosbah, Hamdy El-Kappany
OBJECTIVE: The aim of this study was to compare the efficacy of antimicrobial [silver sulfadiazine (SSD)]-coated ureteral stents with non-coated stents in the prevention of stent-related bacteriuria. MATERIALS AND METHODS: A randomized controlled trial was conducted between September 2014 and September 2016 after approval from the local ethics committee. Inclusion criteria were adults who underwent unilateral double-J ureteral stent placement after ureteroscopic lithotripsy...
September 20, 2017: Scandinavian Journal of Urology
https://www.readbyqxmd.com/read/28931184/-modern-interdisciplinary-management-of-a-uretero-iliac-artery-fistula-case-report
#3
D Benedix, F Meyer, F Fischbach, A Janitzky, Z Halloul
Introduction Abnormal links between the arterial system and other luminal systems are a challenge to those in charge of their adequate diagnostic and therapeutic management. Objective Scientific case report on an individual who underwent successful treatment combining vascular-surgical and interventional radiology techniques for a rare right uretero-iliac artery fistula based on personal clinical experience, a selective literature research and a detailed discussion of current recommendations for diagnostic workup and subsequent treatment...
September 20, 2017: Aktuelle Urologie
https://www.readbyqxmd.com/read/28931043/retrograde-pyelography-predicts-retrograde-ureteral-stenting-failure-and-reduces-unnecessary-stenting-trials-in-patients-with-advanced-non-urological-malignant-ureteral-obstruction
#4
Sung Han Kim, Boram Park, Jungnam Joo, Jae Young Joung, Ho Kyung Seo, Jinsoo Chung, Kang Hyun Lee
OBJECTIVE: To evaluate predictive factors for retrograde ureteral stent failure in patients with non-urological malignant ureteral obstruction. MATERIALS AND METHODS: Between 2005 and 2014, medical records of 284 malignant ureteral obstruction patients with 712 retrograde ureteral stent trials including 63 (22.2%) having bilateral malignant ureteral obstruction were retrospectively reviewed. Retrograde ureteral stent failure was defined as the inability to place ureteral stents by cystoscopy, recurrent stent obstruction within one month, or non-relief of azotemia within one week from the prior retrograde ureteral stent...
2017: PloS One
https://www.readbyqxmd.com/read/28931028/the-efficacy-of-extracorporeal-shockwave-lithotripsy-for-symptomatic-ureteral-stones-predictors-of-treatment-failure-without-the-assistance-of-computed-tomography
#5
Bing-Juin Chiang, Chun-Hou Liao, Yu-Hua Lin
OBJECTIVES: Non-contrast computed tomography (NCCT) is not always performed clinically if the diagnosis of ureteral calculi has been confirmed using other radiographic imaging modalities. The aim of this study was to identify predictors of successful extracorporeal shockwave lithotripsy (ESWL) without assistance of NCCT. METHODS: We retrospectively reviewed the medical records of patients with symptomatic solitary ureteral stones who underwent ESWL between November 2015 and January 2016...
2017: PloS One
https://www.readbyqxmd.com/read/28929659/-effects-and-mechanisms-of-shenkang-injection-promoting-extracellular-matrix-degradation-via-regulating-erk1-2-mmps-signaling-pathway-in-renal-failure-rats
#6
Jing-Jing Yang, Zhi-Min Mao, Yi-Gang Wan, Wei Wu, Yan-Ru Huang, Ge Shi, Wen-Bei Han, Jian Yao
This study aimed to clarify preliminarily the effects and mechanisms of Shenkang injection (SKI) promoting extracellular matrix(ECM)degradation via regulating extracellular-signal regulated protein kinase(ERK)1/2/matrix metalloproteinases(MMPs)signaling pathway in renal failure rats. Twenty rats were randomly divided into 4 groups:the Sham group,the Model group,the SKI group and the Enalapril maleate(EM)group. The model rats with renal failure were induced by intragastric administration of adenine and unilateral ureteral obstruction(UUO)...
October 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28923783/bmp7-induced-pten-inhibits-akt-and-prevents-renal-fibrosis
#7
Debra F Higgins, Leah Ewart, Enda Masterson, Sadhbh Tennant, Gleb Grebnev, Marco Prunotto, Sylvia Pomposiello, Karin Conde-Knape, Finian M Martin, Catherine Godson
Bone morphogenetic protein-7 (BMP-7) counteracts pro-fibrotic effects of TGFβ1 in cultured renal cells and protects from fibrosis in acute and chronic renal injury models. Using the unilateral ureteral obstruction (UUO) model of chronic renal fibrosis, we investigated the effect of exogenous-rhBMP-7 on pro-fibrotic signaling pathways mediated by TGFβ1 and hypoxia. Mice undergoing UUO were treated with vehicle or rhBMP-7 (300μg/kg i.p.) every other day for eight days and kidneys analysed for markers of fibrosis and SMAD, MAPK, and PI3K signaling...
September 15, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28922303/perioperative-outcomes-complications-and-efficacy-of-robotic-assisted-prolapse-repair-a-single-institution-study-of-196-patients
#8
Priyanka Gupta, Michael Ehlert, Jamie Bartley, Jason Gilleran, Kim A Killinger, Judith A Boura, Pradeep Nagaraju, Melissa Fischer
Abdominal pelvic organ prolapse repair is efficacious for uterovaginal and apical prolapse. We describe the safety and efficacy of robotic prolapse repair in a large teaching institution. METHODS: Consecutive robotic-assisted prolapse repairs at a single institution between 2006 and 2014 were retrospectively reviewed for patient characteristics, operative information, and outcomes. RESULTS: A total of 196 women (mean age, 61 ± 9 years) underwent robotic prolapse repair (189 sacrocolpopexy, 6 sacrohysteropexy, 1 enterocele repair)...
September 15, 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/28918954/contemporary-management-of-vesicoureteral-reflux
#9
REVIEW
Perviz Hajiyev, Berk Burgu
CONTEXT: Vesicoureteral reflux (VUR) remains the most interesting topic of pediatric urology due to the dynamic nature of recent controversial publications. Starting from the need for a diagnosis to the necessity and effectiveness of treatment in preventing scars, VUR remains in the mist. Although recent strong evidence helped as fog lights in this blurriness, more data are required for achieving crystal clearance. This article aims to summarize and discuss the current state of the evidence regarding VUR management...
September 11, 2017: European Urology Focus
https://www.readbyqxmd.com/read/28916322/intraductal-transanastomotic-stenting-in-duct-to-duct-biliary-reconstruction-after-living-donor-liver-transplantation-a-randomized-trial
#10
Ky Santosh Kumar, Johns Shaji Mathew, Dinesh Balakrishnan, Viju Kumar Bharathan, Binoj Sivasankara Pillai Thankamony Amma, Unnikrishnan Gopalakrishnan, Ramachandran Narayana Menon, Puneet Dhar, Sudheer Othiyil Vayoth, Sudhindran Surendran
BACKGROUND: Biliary complications continue to be the 'Achilles heel' of living donor liver transplantation (LDLT). The use of biliary stents in LDLT to reduce biliary complication is a controversial issue. We performed a randomized trial to study the impact of intraductal biliary stents on postoperative biliary complications following LDLT. STUDY DESIGN: Of the 94 LDLT's, that were performed during a period of 16 months, ABO incompatible transplants, left lobe grafts, ≥3 ducts on the graft and those requiring bilio-enteric drainage were excluded...
September 12, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28916231/-malrotated-kidney-causing-prenatal-giant-hydronephrosis
#11
R E Massicot, S Ferracci, A-P Uzel
We report the case of a malrotated right kidney associated with giant prenatal hydronephrosis due to a non vascular extrinsic ureteropelvic compression. The kidney presented an hyper-rotation of 180° in relation to the original fetal position, with the renal hilum backward looking. At neonatal surgery we discover that the inferior pole of the kidney pushes laterally the ureteropelvic junction like a violin bridge. The simple uncrossing of the ureteropelvic junction from the inferior renal pole relieves the extrinsic ureteral obstacle and the giant hydronephrosis...
September 12, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28914602/initial-clinical-experience-with-a-modulated-holmium-laser-pulse-moses-technology-does-it-enhance-laser-lithotripsy-efficacy
#12
Michael Mullerad, Jonatan R A Aguinaga, Tareq Aro, Alexander Kastin, Oleg Goldin, Alexander Kravtsov, Akram Assadi, Shadie Badaan, Gilad E Amiel
OBJECTIVE: The Lumenis(®) High-power Holmium Laser (120H) has a unique modulated pulse mode, Moses™ technology. Moses technology modulates the laser pulse to separate the water (vapor bubble), then deliver the remaining energy through the bubble. Proprietary laser fibers were designed for the Moses technology. Our aim was to compare stone lithotripsy with and without the Moses technology. METHODS: We designed a questionnaire for the urologist to fill immediately after each ureteroscopy in which the Lumenis 120H was used...
September 13, 2017: Rambam Maimonides Medical Journal
https://www.readbyqxmd.com/read/28912732/transcriptome-identified-lncrnas-associated-with-renal-fibrosis-in-uuo-rat-model
#13
Jiazeng Sun, Shang Zhang, Bianhua Shi, Dexian Zheng, Juan Shi
Renal fibrosis represents a final common outcome of many renal diseases and has attracted a great deal of attention. To better understand whether lncRNAs could be a player in this process or be a biomarker for renal fibrosis diagnosis, we compared transcriptome sequencing data on renal tissues and urine respectively between UUO (unilateral ureteral obstruction) and shamed (Sham) rat model. Numerous genes including lncRNAs with significant changes in their expression were identified. 24 lncRNAs were up-regulated and 79 lncRNAs were down-regulated in the renal tissues of the UUO rats...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28911880/pelvic-exenteration-for-gynecologic-malignancies-postoperative-complications-and-oncologic-outcomes
#14
A Romeo, M I Gonzalez, J Jaunarena, M E Zubieta, G Favre, J C Tejerizo
INTRODUCTION AND OBJECTIVE: To evaluate complications, morbidity and oncologic outcomes of pelvic exenteration as treatment for gynecologic malignancies. MATERIALS AND METHODS: Between 2008 and 2015, a total of 35 patients underwent pelvic exenteration, due to recurrence of gynecological cancer. Surgical outcomes, early and late postoperative complications, and recurrence/survival outcomes were assessed. RESULTS: Mean patient age was 53.8 years...
September 11, 2017: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/28904913/inhibition-by-benidipine-of-contractility-of-isolated-proximal-and-distal-caprine-ureter
#15
Sumith K Mathew, Girish S Naik, Jacob Peedicayil
CONTEXT: Benidipine is a calcium channel blocker that blocks all the major types (L, N, and T) of calcium channels. It has been shown to inhibit the contractility of many isolated smooth muscles but not isolated ureter. AIMS: This study evaluated the ability of benidipine to inhibit the spontaneous contractility of isolated proximal and distal caprine (goat) ureter. SETTINGS AND DESIGN: Spontaneous contractility of isolated goat ureter was recorded using a physiograph...
July 2017: International Journal of Applied and Basic Medical Research
https://www.readbyqxmd.com/read/28904080/pressure-and-stretch-differentially-affect-proliferation-of-renal-proximal-tubular-cells
#16
Diane Felsen, Bianca J Diaz, Jie Chen, Juana Gonzalez, Marie Louise V Kristensen, Anja B Bohn, Brendan T Roth, Dix P Poppas, Rikke Nørregaard
Renal obstruction is frequently found in adults and children. Mechanical stimuli, including pressure and stretch in the obstructed kidney, contribute to damage; animal models of obstruction are characterized by increased cellular proliferation. We were interested in the direct effects of pressure and stretch on renal tubular cell proliferation. Human HKC-8 or rat NRK-52E proximal tubule cells were subjected to either pressure [0, 60 or 90 mmHg] or static stretch [0 or 20%] for 24 or 48 h. Cell proliferation was measured by cell counting, cell cycle analyzed by flow cytometry, and PCNA and Skp2 expression were determined by qPCR or western blot...
September 2017: Physiological Reports
https://www.readbyqxmd.com/read/28903945/complement-c5a-receptors-c5l2-and-c5ar-in-renal-fibrosis
#17
Ina V Martin, Annika Bohner, Peter Boor, Erdenechimeg Shagdarsuren, Ute Raffetseder, Frank Lammert, Jürgen Floege, Tammo Ostendorf, Susanne N Weber
Complement factor C5a has two known receptors, C5aR mediating pro-inflammatory effects and C5L2, a potential C5a scavenger. We previously identified C5a/C5aR signaling as a potent profibrotic pathway in the kidney. Here we tested for the first time the role of C5L2 in renal fibrosis. In unilateral ureteral obstruction (UUO)-induced kidney fibrosis, the expression of C5aR and C5L2 increased similarly and gradually as fibrosis progressed and was particularly prominent in injured dilated tubules. Genetic deficiency of either C5aR or C5L2 significantly reduced UUO-induced tubular injury...
September 13, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28903527/efficacy-of-early-ureteral-ligation-on-prevention-of-intravesical-recurrence-after-radical-nephroureterectomy-for-upper-urinary-tract-urothelial-carcinoma-a-prospective-single-arm-multicenter-clinical-trial
#18
Shinichi Yamashita, Akihiro Ito, Koji Mitsuzuka, Naomasa Ioritani, Shigeto Ishidoya, Yoshihiro Ikeda, Kenji Numahata, Kazuhiko Orikasa, Tatsuo Tochigi, Fumihiko Soma, Takashige Namima, Yoichi Arai
Objective: The rate of intravesical recurrence after radical nephroureterectomy for upper urinary tract urothelial carcinoma is high. Seeding upper urinary tract urothelial carcinoma cells onto the damaged bladder wall is considered to be one of the causes of intravesical recurrence after radical nephroureterectomy. We evaluated the utility of early ureteral ligation in preventing the intravesical recurrence. Methods: This prospective single-arm clinical trial included patients who underwent radical nephroureterectomy for upper urinary tract urothelial carcinoma in the Tohoku Urological Evidence-Based Medicine Study Group between 2012 and 2013...
September 1, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28902181/platelet-derived-growth-factor-receptor-alpha-positive-cells-a-new-cell-type-in-the-human-ureteropelvic-junction
#19
Manuela Hunziker, Anne-Marie O'Donnell, Prem Puri
BACKGROUND: Ureteropelvic junction (UPJ) obstruction is the most common cause of congenital hydronephrosis. Normal ureteral motility requires coordinated interaction between neurons, smooth muscle cells (SMCs), and interstitial Cajal-like cells (IC-LCs). Recently, a new type of interstitial cell, platelet-derived growth factor receptor α-positive (PDGFRα(+)) cells, was discovered in the gastrointestinal tract and bladder.MethodsWe used immunohistochemistry to study PDGFRα protein distribution in normal human UPJ and congenital UPJ obstruction...
September 13, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28901936/advances-in-paediatric-urology
#20
REVIEW
David A Diamond, Ivy H Y Chan, Andrew J A Holland, Michael P Kurtz, Caleb Nelson, Carlos R Estrada, Stuart Bauer, Paul K H Tam
Paediatric urological surgery is often required for managing congenital and acquired disorders of the genitourinary system. In this Series paper, we highlight advances in the surgical management of six paediatric urological disorders. The management of vesicoureteral reflux is evolving, with advocacy ranging from a less interventional assessment and antimicrobial prophylaxis to surgery including endoscopic injection of a bulking agent and minimally invasive ureteric reimplantation. Evidence supports early orchidopexy to improve fertility and reduce malignancy in boys with undescended testes...
September 9, 2017: Lancet
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