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Renal stone disease

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https://www.readbyqxmd.com/read/28326800/safety-feasibility-and-efficacy-of-bilateral-synchronous-percutaneous-nephrolithotomy-for-bilateral-stone-disease-evidence-from-a-systematic-review
#1
Patrick Jones, Blessing Dhliwayo, Bhavan Prasad Rai, Moeketsi Mokete, Ramachandran Amitharaj, Omar M Aboumarzouk, Bhaskar K Somani
INTRODUCTION: With the evolution of endourologic technology, bilateral synchronous percutaneous nephrolithotomy (BS-PCNL) has emerged as a potentially practical intervention for patients with bilateral lithiasis. Although tradition has favored a staged approach, an increasing number of original studies have reported their experiences with the synchronous approach. MATERIALS AND METHODS: A Cochrane style search was performed after development of a sensitive and predefined search strategy...
March 22, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28321250/percutaneous-nephrolithotomy-under-ultrasound-guidance-in-patients-with-renal-calculi-and-autosomal-dominant-polycystic-kidney-disease-a-report-of-11-cases
#2
Xiao Wang, Xuecheng Yang, Xiulong Zhong, Zhenlin Wang, Senyao Xue, Weifeng Yu, Zhen Dong
Nephrolithiasis accelerates the renal failure in the patients with ADPKD. In order to evaluate the role of percutaneous nephrolithotomy in management of calculus in these patients, 11 patients with autosomal dominant polycystic kidney disease and renal stones were included in the study. Two patients had bilateral renal stones. All patients were treated by percutaneous nephrolithotomy under ultrasound guidance. 13 percutaneous nephrolithotomy procedures were performed in 1 stage by the urology team under ultrasound guidance...
2017: Advances in Urology
https://www.readbyqxmd.com/read/28303631/surgical-outcomes-of-percutaneous-nephrolithotomy-pcnl-in-3-402-patients-and-results-of-stone-analysis-in-1-559-patients-from-a-single-centre-in-pakistan
#3
S A H Rizvi, M Hussain, S H Askari, M Lal, M N Zafar
OBJECTIVE: To report our experience of a series of PCNL from a single centre over the last 18 years in terms of patients and stone characteristics, indications, stone clearance and complications and chemical analysis of stones in a subgroup. PATIENTS AND METHODS: We retrospectively analysed the outcomes of PCNL in 3,402 adult patients who underwent the procedure between 1997 and 2014 from a prospectively maintained database. Data analysis included patients' age, sex, laboratory investigations, imaging, punctured calyx, duration of operation, volume of irrigation fluid, radiation exposure time, blood transfusion, complications and stone free status at one-month follow-up...
March 16, 2017: BJU International
https://www.readbyqxmd.com/read/28303335/treatment-selection-for-urolithiasis-percutaneous-nephrolithomy-ureteroscopy-shock-wave-lithotripsy-and-active-monitoring
#4
Mahesh Desai, Yinghao Sun, Noor Buchholz, Andrew Fuller, Tadashi Matsuda, Brian Matlaga, Nicole Miller, Damien Bolton, Mohammad Alomar, Arvind Ganpule
Urolithiasis is a significant worldwide source of morbidity, constituting a common urological disease that affects between 10 and 15% of the world population. Recent technological and surgical advances have replaced the need for open surgery with less invasive procedures. The factors which determine the indications for percutaneous nephrolithotomy include stone factors (stone size, stone composition, and stone location), patient factors (habitus and renal anomalies), and failure of other treatment modalities (ESWL and flexible ureteroscopy)...
March 16, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/28292198/prospective-analysis-of-a-complete-retrograde-ureteroscopic-technique-with-holmium-laser-stent-cutting-for-management-of-encrusted-ureteral-stents
#5
Alexandre Thomas, Jonathan Cloutier, Luca Villa, Julien Letendre, Achilles Ploumidis, Olivier Traxer
PURPOSE: To propose and evaluate a new endoscopic technique using only a retrograde ureteroscopic approach for the removal of heavily encrusted ureteral stents. METHODS: Data from 51 consecutive patients with encrusted and retained ureteral stents were prospectively collected. Description of the successive steps of surgery is detailed. The Holmium-YAG laser properties offer the opportunity for fragmentation of stent-attached encrustation and the ability to cut the stent itself...
March 14, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28289943/intra-patient-comparison-of-reduced-dose-model-based-iterative-reconstruction-with-standard-dose-adaptive-statistical-iterative-reconstruction-in-the-ct-diagnosis-and-follow-up-of-urolithiasis
#6
Sean Tenant, Chun Lap Pang, Prageeth Dissanayake, Varut Vardhanabhuti, Colin Stuckey, Catherine Gutteridge, Christopher Hyde, Carl Roobottom
OBJECTIVES: To evaluate the accuracy of reduced-dose CT scans reconstructed using a new generation of model-based iterative reconstruction (MBIR) in the imaging of urinary tract stone disease, compared with a standard-dose CT using 30% adaptive statistical iterative reconstruction. METHODS: This single-institution prospective study recruited 125 patients presenting either with acute renal colic or for follow-up of known urinary tract stones. They underwent two immediately consecutive scans, one at standard dose settings and one at the lowest dose (highest noise index) the scanner would allow...
March 13, 2017: European Radiology
https://www.readbyqxmd.com/read/28286070/the-risk-of-chronic-kidney-disease-associated-with-urolithiasis-and-its-urological-treatments-a-review
#7
REVIEW
Giovanni Gambaro, Emanuele Croppi, David Bushinsky, Philippe Jaeger, Adamasco Cupisti, Andrea Ticinesi, Sandro Mazzaferro, Alessandro D'Addessi, Pietro Manuel Ferraro
PURPOSE: Urolithiasis can impair kidney function. This literature review focuses on the risk of kidney impairment in stone formers, the specific conditions associated with this risk and the impact of urological surgery. MATERIALS AND METHODS: The PubMed and Embase databases were searched for publications on urolithiasis, its treatment, and the risk of chronic kidney disease (CKD), end-stage renal disease (ESRD) and nephrectomy in stone formers. RESULTS: In general, renal stone formers carry twice the risk of CKD or ESRD, and for female and overweight stone formers the risk is even higher...
March 9, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28271156/stones-in-special-situations
#8
Mordechai Duvdevani, Stavros Sfoungaristos, Karim Bensalah, Benoit Peyronnet, Amy Krambeck, Sanjay Khadji, Ahmet Muslumanuglu, David Leavitt, Jude Divers, Zeph Okeke, Arthur Smith, Janelle Fox, Michael Ost, Andreas J Gross, Hassan Razvi
There are several special situations in which urinary lithiasis presents management challenges to the urologist. An in-depth knowledge of the pathophysiology, unique anatomy, and treatment options is crucial in order to maintain good health in these patients. In this review, we summarize the current literature on the management of the following scenarios: bladder stones, stones in bowel disease, during pregnancy, in association with renal anomalies, with skeletal deformities, in urinary diversions, and in children...
March 7, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/28260449/living-kidney-donor-cancellation-at-king-hussein-medical-center
#9
Katibh Al-Rabadi, Reham Issa Almardini, Mysoon Hajeer, Mahmood Hendawi, Aiham Hadad
OBJECTIVES: Living-related kidney donation is the main source of renal grafts in Jordan, since kidneys from deceased donors are scarce. Although the Jordanian community accepts the idea of kidney donation to family members, not all potential donors manage to complete the required psychologic and medical evaluations. We review the causes of kidney-donation cancellation and suggest options to increase the number of available organs. MATERIALS AND METHODS: We performed a retrospective chart review of all potential living-related kidney donors at King Hussein Medical Center between January 2008 and June 2016...
February 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28255414/prediction-of-fragmentation-of-kidney-stones-a-statistical-approach-from-ncct-images
#10
Krishna Moorthy, Meenakshy Krishnan
INTRODUCTION: We sought to develop a system to predict the fragmentation of stones using non-contrast computed tomography (NCCT) image analysis of patients with renal stone disease. METHODS: The features corresponding to first order statistical (FOS) method were extracted from the region of interest in the NCCT scan image of patients undergoing extracorporeal shockwave lithotripsy (ESWL) treatment and the breakability was predicted using neural network. RESULTS: When mean was considered as the feature, the results indicated that the model developed for prediction had sensitivity of 80...
July 2016: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28248048/-principles-of-surgical-treatment-of-patients-with-renal-tumor-and-coexistent-contralateral-kidney-stone
#11
E V Shpot, A M Pshikhachev
AIM: To determine the treatment strategy for patients with renal tumors and coexistent contralateral kidney stone. MATERIALS AND METHODS: From 2006 to 2015, 1380 and 4833 patients underwent surgery for renal tumours and kidney stones, respectively. The combination of stone disease and renal tumor was found in 159 (11.5%) patients, of whom 61 patients had indications for surgical treatment of both diseases at the time of hospital admission. Of these, 17 (27.9%) patients (8 men and 9 women) had renal tumors and coexistent contralateral kidney stone...
December 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28248023/-pyeloureteral-stenting-using-nitinol-stents
#12
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
https://www.readbyqxmd.com/read/28222205/complex-cystine-kidney-stones-treated-with-combined-robot-assisted-laparoscopic-pyelolithotomy-and-intraoperative-renoscopy
#13
Luca Meggiato, Francesco Cattaneo, Fabio Zattoni, Fabrizio Dal Moro, Paolo Beltrami, Filiberto Zattoni
INTRODUCTION: Cystinuria, a rare autosomal recessive disease characterized by a defect in cystine renal reabsorption, can often determine complex cystine renal calculi, leading to important complications such as urinary obstruction, urinary infections, and impaired kidney function. Complex kidney stones can have a difficult management and can be very arduous to treat. CASE DESCRIPTION: We present the case of a 20-year-old Jeowah's witness woman with complex cystine renal stones treated with combined robot-assisted laparoscopic pyelolithotomy and intraoperative renoscopy...
February 18, 2017: Urologia
https://www.readbyqxmd.com/read/28221160/-urinary-lithiasis-the-patient-also-plays
#14
Juan Antonio Galán Llopis, Aleixandre Vergés Prósper, Helena Pérez-Seoane Ballester, Eva Escudero Fontano, Leonardo Tortolero Blanco
Renal lithiasis is known for its high incidence and prevalence, but mainly for its morbidity and recurrence. Despite a good indication and appropriate surgical treatment, the essential problem, the origin of the formation of the stones, generally persists and it is not uncommon that patients suffer multiple treatments and discomfort secondary to ancillary measures normally used to prevent complications. It is widely known, for consistency, that a prophylactic treatment with general or, in a smaller group of patients, specific measures are appropriate to diminish recurrences...
January 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28221143/-metabolic-study-how-to-make-it-accessible-useful-and-generalized
#15
Juan Alberto Lancina Martín
Risk factors should be evaluated in all patients with urinary lithiasis. The kind of evaluation, simplified or extended, depends on stone composition and, in patients with calcium lithiasis, on the clinical presentation. These studies are done in an outpatient regimen, are easy to perform and accessible for most laboratories. Patients with uric acid, infectious and cystine stones only require a selective more abbreviated evaluation. In calcium lithiasis we perform an extended metabolic evaluation in recurrent patients and also in singleepisode patients when they have high recurrence risk...
January 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28221140/-urinary-lithiasis-as-a-systemic-disease
#16
Mercedes Leanez Jiménez, Fernando Candau Vargas-Zúñiga, Carlos Reina Ruiz
Urinary lithiasis is a prevalent disorder of uncertain origin which provokes health problems through potential harm to the urinary system, renal parenchyma or the body as a whole, with a frequent trend to relapse. Historically urinary calculi have been studied and treated as an isolated disease but nowadays we know more about their connection with other pathological entities. In a small percentage of patients, diseases like primary hyperparathyroidism, tubular renal acidosis, inflammatory bowel disease or bariatric surgery have a fairly well studied physiopathological link with kidney stones...
January 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28221138/-epidemiology-of-urinary-lithiasis-in-spain-new-scenarios
#17
Julia Carrasco Valiente, Enrique Gómez Gómez, María José Requena Tapia
Renal lithiasis is one of the most common disorders in modern society, constituting an important health problem that associates a great economic burden. The nature of stone disease varies according to age and sex, being also influenced by dietary and lifestyle factors, and climatic variations among others. In spite of the advances made in the management of this pathology, it continues being a disease with a high recurrence rate. In recent years, several studies have pointed out that its prevalence is rising especially in developed countries...
January 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28217701/gut-microbiota-and-oxalate-homeostasis
#18
Marguerite Hatch
This perspective focuses on how the gut microbiota can impact urinary oxalate excretion in the context of hyperoxaluria, a major risk factor in kidney stone disease. In the genetic disease of Primary Hyperoxaluria Type 1 (PH1), an increased endogenous production of oxalate, due to a deficiency of the liver enzyme alanine-glyoxylate aminotransferase (AGT), results in hyperoxaluria and oxalate kidney stones. The constant elevation in urinary oxalate in PH1 patients ultimately leads to tissue deposition of oxalate, renal failure and death and the only known cure for PH1 is a liver or liver-kidney transplant...
January 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28176358/renal-calcium-oxalate-deposits-induce-a-pro-atherosclerotic-and-pro-osteoporotic-response-in-mice
#19
Kirsten Kusumi, Evan Barr-Beare, Vijay Saxena, Fayez Safedi, Andrew Schwaderer
BACKGROUND: Urinary stone disease (USD) is increasing in adult and pediatric populations Adult and pediatric studies have demonstrated decreased bone mineral density and increased fracture rates. USD has also been independently linked to increased rates of myocardial infarction and cerebral vascular accidents. Although USD is a multisystem disorder involving the kidneys, bone and vasculature, the molecular mechanisms linking these three organs remain unknown. METHODS: Calcium oxalate nephropathy was induced in C57BL/6J mice with intra-peritoneal (ip) injection of sodium glyoxolate...
February 8, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28161351/trends-in-imaging-use-for-the-evaluation-and-follow-up-of-kidney-stone-disease-a-single-center-experience
#20
Kevan M Sternberg, Benjamin Littenberg
PURPOSE: Recent reports support the use of renal ultrasonography (US) as the initial imaging study for the evaluation of patients with suspected renal colic. Urologists, however, often advocate for computed tomography (CT) to better define stone size and location, especially prior to proceeding with endourologic intervention. One concern with using US as the initial imaging study is that CT may be required at a later time, obviating the reduction in costs and radiation gained by using US...
February 1, 2017: Journal of Urology
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