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https://www.readbyqxmd.com/read/28346915/safety-and-efficacy-of-flexible-ureteroscopy-in-combination-with-holmium-laser-lithotripsy-for-the-treatment-of-bilateral-upper-urinary-tract-calculi
#1
Bing Yang, Hao Ning, Zheng Liu, Yi Zhang, Chengfan Yu, Xianghua Zhang, Dongliang Pan, Kejia Ding
OBJECTIVE: To retrospectively evaluate the safety and efficacy of flexible ureteroscopy (FURS) in combination with holmium laser lithotripsy for the treatment of bilateral upper urinary calculi. MATERIALS AND METHODS: The stone-free status was defined as the absence of any stones or asymptomatic status, or the presence of clinically insignificant residual fragments <4 mm, and was assessed by plain kidney, ureter, and bladder X-ray. The operative time, stone-free rates (SFRs), serum creatinine (SCr), and complications were recorded...
March 28, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/28342285/development-of-a-human-cadaver-model-for-training-in-laparoscopic-donor-nephrectomy
#2
Erica Sutton, Adrian Billeter, Devin Druen, Henry Roberts, Jonathan Rice, Hiram C Polk
BACKGROUND: The Organ Procurement Network recommends a surgeon record 15 cases as surgeon or assistant for laparoscopic donor nephrectomies (LDN) prior to independent practice. The literature suggests that the learning curve for improved perioperative and patient outcomes is closer to 35 cases. In this article, we describe our development of a model utilizing fresh tissue and objective, quantifiable endpoints to document surgical progress and efficiency in each of the major steps involved in LDN...
March 25, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28341578/the-utility-of-the-kidneys-ureters-bladder-kub-radiograph-as-the-sole-imaging-modality-and-its-combination-with-ultrasonography-for-the-detection-of-renal-stones
#3
Toru Kanno, Masashi Kubota, Satoshi Funada, Takashi Okada, Yoshihito Higashi, Hitoshi Yamada
OBJECTIVE: To investigate the efficacy of plain radiography and ultrasonography each as the sole imaging tool as well as combined, for detecting renal stones using unenhanced computed tomography as a standard reference. Ultrasonography and plain radiography of the kidneys, ureters, and bladder are often used for urinary tract stone detection, but the effectiveness of each method used alone, or the two methods used together, remains controversial. MATERIALS AND METHODS: From January 2012 to September 2014, 822 patients underwent plain radiography, ultrasonography, and unenhanced computed tomography on the same day...
March 21, 2017: Urology
https://www.readbyqxmd.com/read/28340826/optimal-timing-for-removal-of-the-double-j-stent-after-kidney-transplantation
#4
Y Yuksel, S Tekin, D Yuksel, I Duman, M Sarier, L Yucetin, K Kiraz, M Demirbas, A Kaya Furkan, M Aslan Sezer, A Demirbas, Y H Asuman
BACKGROUND: Urologic complications (UC) have gradually decreased in recent years after advanced surgical experience. The incidence of urologic complications varies between 0.22% and 30% in different medical studies. There is no routine usage of double-J stenting (DJS) during renal transplantation (RT) in the literature. It is a necessity, and optimal timing for stent removal is an important question for many transplantation centers. METHODS: This study includes 818 renal transplant patients whose ureteroneocystostomy anastomoses were completed by use of the Lich-Gregorie procedure during a 2-year period at a transplantation center...
April 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28340824/comparison-of-surgical-correction-techniques-for-post-renal-transplantation-vesicoureteral-reflux
#5
V Turunç, A Eroğlu, B Tabandeh, A Erol
BACKGROUND: Symptomatic urinary tract infection (UTI) after renal transplantation (RT) is an important morbidity in transplant recipients and may cause pyelonephritis and sepsis. Surgical correction of high-grade vesicoureteral reflux (VUR) after RT is suggested, performing ureteral reimplantation or pyelo-ureteral/uretero-ureteral anastomosis. Recently, extravesical seromuscular tunnel lengthening techniques have been reported with favorable results and low complication rates. METHODS: We retrospectively reviewed the charts of 38 patients with post-transplantation VUR who underwent reflux correction surgery...
April 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28340540/use-of-the-moses-technology-to-improve-holmium-laser-lithotripsy-outcomes-a-preclinical-study
#6
Mostafa M Elhilali, Shadie Badaan, Ahmed Ibrahim, Sero Andonian
OBJECTIVE: To evaluate in vitro and in vivo effects of Moses technology in Holmium laser and to compare it with the Regular mode in terms of lithotripsy efficiency and laser-tissue interactions. METHODS: The Lumenis® PulseTM P120H holmium laser system together with Moses D/F/L fibers were used to compare Regular mode with the Moses modes in stone retropulsion using a high-speed camera, and stone ablation efficiency. In addition, a porcine ureteroscopy model was used to assess stone fragmentation and dusting as well as laser-tissue interaction with the ureteral wall...
March 24, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28343326/segmental-ureterectomy-is-not-inferior-to-radical-nephroureterectomy-for-either-middle-or-distal-ureter-urothelial-cell-carcinomas-within-3-5%C3%A2-cm
#7
Chen Fang, Xin Xie, Tianyuan Xu, Wei He, Hongchao He, Xiaojing Wang, Yu Zhu, Zhoujun Shen, Yuan Shao
OBJECTIVE: To evaluate oncologic outcomes of segmental ureterectomy (SU) compared with radical nephroureterectomy (RNU) for urothelial carcinoma of ureter. To evaluate whether tumor position is a factor to influence outcomes of different surgical procedures. METHODS: From November 2003 to June 2016, 131 patients with urothelial carcinoma of ureter underwent SU or RNU at our department. We used survival analysis and Cox regression models to compare oncologic outcomes after SU and RNU...
March 25, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28336220/ureteroscopy-and-laser-stone-fragmentation-ursl-for-large-%C3%A2-1%C3%A2-cm-paediatric-stones-outcomes-from-a-university-teaching-hospital
#8
N C Featherstone, B K Somani, S J Griffin
INTRODUCTION: The treatment of large renal stones (≥1 cm) in paediatric patients is challenging. The usual treatment options include percutaneous nephrolithotomy (PCNL) or shockwave lithotripsy (SWL). There is a rise in the use of ureteroscopy and laser stone fragmentation (URSL) for paediatric stones; however, outcomes of treatment for large renal stones in this age group are still largely unknown. OBJECTIVE: To investigate the outcome of URSL for large paediatric renal stones ≥1 cm treated at the present institution over the last 5 years...
August 24, 2016: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28334964/mutations-in-the-leukemia-inhibitory-factor-receptor-lifr-gene-and-lifr-deficiency-cause-urinary-tract-malformations
#9
Anne Kosfeld, Frank Brand, Anna-Carina Weiss, Martin Kreuzer, Michaela Goerk, Helge Martens, Stephanie Schubert, Anne-Kathrin Schäfer, Vera Riehmer, Imke Hennies, Jan Hinrich Bräsen, Lars Pape, Kerstin Amann, Lars Krogvold, Anna Bjerre, Christoph Daniel, Andreas Kispert, Dieter Haffner, Ruthild G Weber
Congenital anomalies of the kidneys and urinary tract (CAKUT) are the most common cause of chronic kidney disease in children. As CAKUT is a genetically heterogeneous disorder and most cases are genetically unexplained, we aimed to identify new CAKUT causing genes. Using whole-exome sequencing and trio-based de novo analysis, we identified a novel heterozygous de novo frameshift variant in the leukemia inhibitory factor receptor (LIFR) gene causing instability of the mRNA in a patient presenting with bilateral CAKUT and requiring kidney transplantation at one year of age...
March 8, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28333838/wilms-tumor-extension-into-duplex-ureter-in-a-10-year-old-girl
#10
İbrahim Karnak, Mithat Haliloğlu, Diclehan Orhan, Tezer Kutluk
Ureteral extension of Wilms tumor (WT) is a rare occasion. The association of duplex collecting system and WT is extremely rare. Ureteral extension of WT in a duplex collecting system is an unreported entity to date. A 10-year-old girl presenting with WT extending into upper pole ureter of duplex system is reported to emphasize the importance of preoperative diagnosis to plan step by step surgery in this rare coincidental situation.
April 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28325721/carcinosarcoma-of-the-bladder-following-local-schistosomiasis-infection
#11
Victor Srougi, Fabio P Gallucci, Romulo L Mattedi, Miguel Srougi
A young patient from central Africa presented acute renal insufficiency due to extrinsic compression of the distal ureters by a pelvic mass. After initial medical management, a biopsy revealed poorly differentiated bladder cancer and Schistosoma haematobium eggs embedded in the bladder wall. The initial workup showed evidence of locoregional disease. Radical cystectomy with an incontinent urinary diversion was performed with no complications. Carcinosarcoma of the bladder was diagnosed by pathological analysis of the surgical specimen...
March 21, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28325119/conservative-management-in-ureteric-hydronephrosis-due-to-deep-endometriosis-could-the-levonorgestrel-intrauterine-device-be-an-option
#12
Elisa Simón, Álvaro Tejerizo, José Luis Muñoz, Carmen Álvarez, Laura Marqueta, Jesús S Jiménez
Endometriosis can affect up to 10% of women of reproductive age, in a wide range of clinical presentations that vary from mild to severe or deep endometriosis. Deep endometriosis can affect the urinary tract in 1-5% to 15-25% cases. Even though deep endometriosis' surgeries are usually complex with higher rate of complications, conservative management is not always considered as an option because of its high failure rates. This paper describes two cases of deep endometriosis with ureteric involvement (hydronephrosis) treated conservatively with a double-pigtail stent plus a Levonorgestrel intrauterine device, after conservative surgery, who remained symptom free with no evidence of recurrence at 3 years follow-up, avoiding radical high-risk surgery...
March 21, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28320713/antimicrobial-percutaneous-nephrostomy-catheters-for-the-prevention-of-renal-infections-in-vitro-studies
#13
Nylev Vargas-Cruz, Ruth A Reitzel, Joel Rosenblatt, Mohamed Jamal, Ariel D Szvalb, Anne-Marie Chaftari, Ray Hachem, Issam Raad
Purpose - Percutaneous nephrostomy (PCN) catheters are the primary method for draining ureters obstructed by malignancy and preventing a decline of the renal function. However, PCN-related infections such as pyelonephritis and urosepsis remain a significant concern. Currently no antimicrobial PCNs are available for preventing infectious complications. Vascular catheters impregnated with Minocycline/Rifampin (M/R) and M/R with Chlorhexidine coating (M/R+CHD) have previously demonstrated antimicrobial activity...
March 20, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28319023/isolated-bilateral-simplex-ureteric-ectopia-bladder-capacity-as-an-indicator-of-continence-outcome
#14
Vasilis Stavrinides, Paul Charlesworth, Dan Wood, Divyesh Desai, Abraham Cherian, Imran Mushtaq, Peter Cuckow, Naima Smeulders
INTRODUCTION: Isolated bilateral simplex ectopic ureters (BSEUs) are rare but pose a therapeutic challenge: ureteric reimplantation alone does not accomplish continence in all. Identifying the patients needing additional procedures for continence early could prevent multiple operations. OBJECTIVE: Potential preoperative indicators for postoperative continence are explored in eight BSEU girls without cloacal, anorectal, or spinal anomalies. STUDY DESIGN: With institutional approval, all patients with BSEU between 1985 and 2012 were retrospectively reviewed...
March 6, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28318069/editorial-comment-from-dr-pandey-to-total-proximal-ureter-substitution-using-buccal-mucosa
#15
Abhishek Pandey
No abstract text is available yet for this article.
March 20, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28306420/ventriculo-ureteral-shunt-insertion-using-percutaneous-nephrostomy-a-novel-minimally-invasive-option-in-a-patient-with-chronic-hydrocephalus-complicated-by-multiple-distal-ventriculoperitoneal-shunt-failures
#16
Ashok Pillai, Georgie Mathew, Sivasankaran Nachimuthu, Sanjeevan Vasudevan Kalavampara
The management of ventriculoperitoneal (VP) shunt failure is a common problem in neurosurgical practice. On occasion, extraperitoneal sites for CSF diversion are required when shunting to the peritoneal cavity has failed after multiple attempts. The authors report a novel minimally invasive procedure allowing cannulation of the ureter for the purpose of ventriculo-ureteral (VU) shunting. Sixteen years prior to presentation, this 46-year-old woman had contracted tuberculous meningitis and had chronic hydrocephalus, with multiple distal shunt failures in recent months...
March 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28306331/intraoperative-radiographic-determination-of-ureteral-length-as-a-method-of-determining-ideal-stent-length
#17
Keith Barrett, Daniela Ghiculete, Robert J Sowerby, Monica Farcas, Kenneth T Pace, Richardson John D'Arcy Honey
INTRODUCTION: Accurate determination of ureteral length (UL) and appropriate stent length remains a challenge. The objective of this study was to describe an intraoperative technique to measure UL and determine appropriate stent length, and to compare this technique with other methods of determining appropriate stent length. METHODS: Patients undergoing ureteroscopy requiring postoperative stenting and who had a preoperative CT were prospectively identified. Gender, age, height, body mass index, L1 to L5 lumbar height on CT, and surgeon's estimate of UL were recorded...
March 17, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28306195/influence-of-caudal-block-on-postoperative-oliguria-in-infants-undergoing-bilateral-ureteroneocystostomy-a-retrospective-analysis
#18
Hyun Jeong Lee, Yong Seon Choi, Bon-Nyeo Koo, Sang Won Han, Young Eun Cho, Young Jae Im, Jae Hoon Lee
BACKGROUND: Caudal block has been widely used in children undergoing genitourinary surgery. However, the influence of caudal block on postoperative oliguria is unclear. AIM: The aim of this study was to assess the effect of caudal block on urinary flow through the reimplanted ureter after ureteroneocystostomy and the incidence of postoperative oliguria in infants. METHODS: This retrospective study analyzed the medical records of 121 infants aged less than 12 months who underwent bilateral ureteroneocystostomy for vesicoureteral reflux at a tertiary medical center...
March 17, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28299237/asymptomatic-urolithiasis-complicated-by-nephrocutaneous-fistula
#19
Marion Hamard, Gaël Amzalag, Christoph D Becker, Pierre-Alexandre Poletti
Asymptomatic spontaneous nephrocutaneous fistula is a rare and severe complication of chronic urolithiasis. We report a case of 56-year-old woman with a nephrocutaneous fistula (NFC) which developed from a superinfected urinoma following calyceal rupture due to an obstructing calculus in the left ureter. The patient was clinically asymptomatic and came to the emergency department for a painless left flank fluctuating mass. This urinoma was superinfected, with a delayed development of renal abscesses and perirenal phlegmon found on contrast-enhanced uro-computed tomography (CT), responsible for left renal vein thrombophlebitis and left psoas abscess...
2017: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/28297293/dose-reduction-in-ct-urography-and-vasculature-phantom-studies-using-model-based-iterative-reconstruction
#20
Leland Page, Wei Wei, Vikas Kundra, X John Rong
To evaluate the feasibility of radiation dose reduction using model-based iterative reconstruction (MBIR) for evaluating the ureters and vasculature in a phantom, a tissue-equivalent CT dose phantom was scanned using a 64-channel CT scanner. Tubes of varying diameters filled with different dilutions of a contrast agent, simulating ureters or vessels, were inserted into the center of the phantom. Each combination was scanned using an existing renal protocol at 140 kVp or 120 kVp, yielding a display volumetric CT dose index (CTDIvol) of 24 mGy...
November 2016: Journal of Applied Clinical Medical Physics
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