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https://www.readbyqxmd.com/read/28401803/imaging-advances-for-urolithiasis
#1
Joanne Andrea Dale, Rajan T Gupta, Daniele Marin, Michael Eric Lipkin, Glenn M Preminger
The prevalence of urinary stones in the United States has been described as 1 in 11 persons reporting a history of stones. Imaging plays a crucial role in diagnosis, management and follow-up for these patients and imaging technology over the last 100 years has advanced as the disease prevalence has increased. Computed tomography (CT) remains the gold standard for imaging urolithiasis and changes in this technology, with the addition of multidetector CT and dual-energy CT, as well as the changes in utilization of CT, have decreased the radiation dose encountered by patients and allowed for improved stone detection...
April 12, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28370915/comparison-of-cost-of-care-for-tethered-versus-non-tethered-ureteric-stents-in-the-management-of-uncomplicated-upper-urinary-tract-stones
#2
Alfin Okullo, Yuigi Yuminaga, William Ziaziaris, David Ende, Howard Lau, Andrew Brooks, Manish I Patel, Simon Bariol
BACKGROUND: Many surgeons use a stent after ureteroscopic lithotripsy (URSL). For short-term stenting purposes, a surgeon has the choice of either a tethered or a non-tethered stent. Stents may be associated with complications that entail an additional cost to their use. There is a paucity of data on the direct healthcare cost of using stent type after either primary or secondary URSL. METHODS: We retrospectively reviewed medical records for patients who underwent URSL for uncomplicated urolithiasis between January 2013 and December 2013 at two tertiary referral hospitals...
March 30, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28247327/extracorporeal-shock-wave-therapy-current-perspectives-and-future-directions
#3
REVIEW
Andrew C Lawler, Eric M Ghiraldi, Carmen Tong, Justin I Friedlander
PURPOSE OF REVIEW: Since its introduction, extracorporeal shock wave lithotripsy (ESWL) has undergone a variety of changes; however, it remains one of the most utilized treatment modalities for urolithiasis. The goal of this review is to provide the practicing urologist an update on contemporary trends, new technologies, and related controversies in utilizing ESWL for stone treatment. RECENT FINDINGS: ESWL use has come under scrutiny with a shift in focus to cost-effectiveness and healthcare outcomes...
April 2017: Current Urology Reports
https://www.readbyqxmd.com/read/28221142/-diagnosis-and-radiological-follow-up-of-urinary-lithiasis
#4
María Pilar Luque Gálvez, Rafael Salvador Izquierdo
Urolithiasis is a common disease with increasing prevalence worldwide and a lifetimeestimated recurrence risk of over 50%. Imaging techniques play a critical role in the initial diagnosis, follow-up and urological management of urinary tract stone disease. The are many useful tools for diagnosing urolithiasis, including conventional plain radiography, intravenous urography, ultrasonography, computed tomography and magnetic resonance imaging. All these techniques have their own individual roles to play and also their limitations...
January 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28185760/why-we-need-a-higher-suspicion-index-of-urolithiasis-in-children
#5
REVIEW
Pierluigi Marzuillo, Stefano Guarino, Andrea Apicella, Angela La Manna, Cesare Polito
BACKGROUND: Most children with symptoms of urolithiasis and urinary solute excretion abnormalities leading to stone formation have no calculi revealed by ultrasound or X-ray plain film ("occult urolithiasis"). This covers a large group of children presenting with common symptoms such as abdominal pain, hematuria, and dysuria, often faced by general practitioners and pediatricians. However, half or more of children with urolithiasis could present with abdominal/flank pain without specific urinary symptoms...
January 29, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28161351/trends-in-imaging-use-for-the-evaluation-and-followup-of-kidney-stone-disease-a-single-center-experience
#6
Kevan M Sternberg, Benjamin Littenberg
PURPOSE: Recent reports support renal ultrasound as the initial imaging study to evaluate patients with suspected renal colic. However, urologists often advocate for computerized tomography to better define stone size and location, especially before proceeding with endourological intervention. One concern with using ultrasound as initial imaging is that computerized tomography may be required later, obviating the reduction in costs and radiation gained by using ultrasound. MATERIALS AND METHODS: We retrospectively reviewed the electronic health records of 10,680 episodes of stone disease in a total of 7,659 patients who presented to the emergency department or walk-in clinic with a chief complaint or visit diagnosis of urolithiasis from 2009 to 2015 at a single institution...
February 1, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28027075/single-use-and-disposable-flexible-ureteroscopes
#7
Esteban Emiliani, Olivier Traxer
PURPOSE OF REVIEW: Flexible ureteroscopy has been widely developed in the last decade been nowadays one of the first line treatment options for urolithiasis and conservative management for upper tract urothelial tumors. Even though some unfavorable features of the reusable flexible scopes can limit the surgical procedure such as their availability, lack of sterilization or costly repairs. Disposable scopes have been developed with the intention of improving such problems. RECENT FINDINGS: To our knowledge, seven devices have been developed...
March 2017: Current Opinion in Urology
https://www.readbyqxmd.com/read/27921141/kidney-stones-diseases-and-glycaemic-statuses-focus-on-the-latest-clinical-evidences
#8
REVIEW
Leonardo Spatola, Claudio Angelini, Salvatore Badalamenti, Silvio Maringhini, Giovanni Gambaro
Diabetes and obesity are already recognized as potential risk factors for nephrolithiasis, especially for uric acid stones. Insulin resistance and hyperinsulinemia actively contribute to impaired ability to excrete an acid load and altered ammonium production, leading to a lower urinary pH compared to non-diabetic controls. All these electrolytic disorders play an important role in stone formation and aggregation, especially in uric acid stones. There are still missing points in scientific evidence if the increased risk in stone formation is already existing even in the prediabetic statuses (isolated impaired glucose tolerance, isolated impaired fasting glucose, and associated impaired glucose tolerance/impaired fasting glucose) as well as it is worth to consider the same level of risk...
December 5, 2016: Urolithiasis
https://www.readbyqxmd.com/read/27853528/recent-advances-in-understanding-and-managing-urolithiasis
#9
REVIEW
Walter L Strohmaier
During the last few years, there has been relevant progress in both understanding and managing urolithiasis. Our knowledge of stone formation has changed; although the importance of urine biochemistry was questioned by several investigators years ago, the decisive role of cellular processes (induced by oxidative stress) and the renal papilla has only recently been generally accepted as the most important step in stone formation. For calcium oxalate urolithiasis, the formation of papillary calcifications plays a key role and is of prognostic relevance...
2016: F1000Research
https://www.readbyqxmd.com/read/27639296/tamsulosin-for-urolithiasis-a-review-of-the-recent-literature-and-current-controversies
#10
REVIEW
Ali Pourmand, Rahul Nadendla, Maryann Mazer-Amirshahi, Francis O'Connell
In the United States, urolithiasis affects approximately 1 in 11 people, and there is evidence that the prevalence is increasing. A relatively recent treatment strategy for urolithiasis involves using medical expulsive therapy (MET) to increase the likelihood of spontaneous passage of ureteral stones. The 2 leading drug classes for MET are alpha-1-andrenergic receptor blockers and calcium channel blockers. Tamsulosin, an alpha-1-adrenocepter blocking agent, is thought to induce spontaneous stone passage by relaxing ureteral smooth muscle tone...
November 2016: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27617550/-treatment-of-pediatric-lithiasis-in-the-lithotripsy-and-endourology-unit-of-hospital-la-luz-commented-retrospective-of-our-case-series
#11
R Orozco Fariñas, J I Iglesias Prieto, P Pellejero Pérez, J Massarrah Halabi, J M Mancebo, E Pérez-Castro Ellendt
OBJECTIVE: The aim of the present article is to summarize the results we obtained treating children with urolithiasis over the last 30 years and to perform an analysis on the basis of the these results and relevant details according to national and international experience. METHODS: Retrospective and descriptive statistical analysis of the 30 year experience in our clinics. The study was performed with a sample size of 178 children treated with urolithiasis that underwent 221 procedures...
September 2016: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/27609089/-persistent-elevation-of-ca-19-9-and-an-unexpected-finding-a-case-report
#12
Luis Manuel Souza-Gallardo, Mauricio de la Fuente-Lira, Roberto Galaso-Trujillo, José Luis Martínez-Ordaz
BACKGROUND: Tumour markers are substances produced by the tumour itself, or by the host in response to a tumour. These markers could be measured either in the blood or in body secretions. One of the most common tumour markers used in gastrointestinal diseases is Ca 19-9. It is the marker most used for pancreatic cancer, but can be elevated in many benign processes. Thus, it is not a specific marker. CLINICAL CASE: The case is presented of a male patient with 4 years of moderate abdominal pain, weight loss, and persistent elevation of Ca 19-9...
September 5, 2016: Cirugia y Cirujanos
https://www.readbyqxmd.com/read/27566057/urolithiasis-and-frequent-ct-scans-does-chronic-pain-play-a-role
#13
Arash Akhavein, Vishnu Ganesan, Sarah Tarplin, Manoj Monga, Sri Sivalingam
INTRODUCTION: Urolithiasis is among the top 10 causes of Emergency Department (ED) visits in the United States. Approximately 50% of these patients undergo abdominopelvic CT scan, many more than once. We hypothesized that chronic pain conditions may contribute to frequent CT scans in patients who are evaluated in ED for urolithiasis. METHODS: A retrospective review of patients presenting to our tertiary care and the associated satellite EDs for urolithiasis, during the period 12/2012-05/2013, was performed...
October 3, 2016: Journal of Endourology
https://www.readbyqxmd.com/read/27206412/role-of-dual-source-dual-energy-computed-tomography-versus-x-ray-crystallography-in-prediction-of-the-stone-composition-a-retrospective-non-randomized-pilot-study
#14
Murat Akand, Mustafa Koplay, Necat Islamoglu, Murat Gul, Ozcan Kilic, Merter Bora Erdogdu
PURPOSE: We aimed to evaluate the accuracy of determining stone composition with dual-source (DS) dual-energy (DE) computed tomography (CT). METHODS: A total of 142 patients, diagnosed with urolithiasis and had complete medical records, were included in the study. The number, dimensions, location and CT density of the stones, and dose-length products and effective radiation dose were recorded for every patient. Stone compositions determined with DECT by two radiologists separately were compared with crystallography method...
September 2016: International Urology and Nephrology
https://www.readbyqxmd.com/read/27177427/clinical-predictors-of-30-day-emergency-department-revisits-for-patients-with-ureteral-stones
#15
Vishnu Ganesan, Christopher J Loftus, Bryan Hinck, Daniel J Greene, Yaw A Nyame, Sri Sivalingam, Manoj Monga
PURPOSE: Patients with ureteral stones frequently present to the emergency department for an initial evaluation with pain and/or nausea. However, a subset of these patients subsequently return to the emergency department for additional visits. We sought to identify clinical predictors of emergency department revisits. MATERIALS AND METHODS: We reviewed emergency department visits at our institution with a ICD-9 diagnosis of urolithiasis and an associated computerized tomography scan between 2010 and 2013...
May 10, 2016: Journal of Urology
https://www.readbyqxmd.com/read/26993821/use-of-xenx%C3%A2-the-latest-ureteric-occlusion-device-with-guide-wire-utility-results-from-a-prospective-multicentric-comparative-study
#16
MULTICENTER STUDY
Francesco Sanguedolce, Emanuele Montanari, Mario Alvarez-Maestro, Nicola Macchione, Stephan Hruby, Athanasios Papatsoris, Panagiotis Kallidonis, Luca Villa, Patrick Honeck, Olivier Traxer, Francesco Greco
PURPOSE: This is a prospective multicentric comparative study evaluating the performance of XenX-a new dual-purpose device for the prevention of stone fragments migration during ureteroscopic lithotripsy (URS). METHODS: Between March 2014 and January 2015, 41 patients undertaking URS + XenX were matched with 41 patients undergoing standard URS. Patients included had unilateral ureteric stone(s) of 0.5-1.5 cm in maximum size. Demographics, complication rates and surgical outcomes were recorded for comparison...
November 2016: World Journal of Urology
https://www.readbyqxmd.com/read/26667826/the-preventive-treatment-of-recurrent-stone-formation-how-can-we-improve-compliance-in-the-treatment-of-patients-with-recurrent-stone-disease
#17
REVIEW
Dirk Jan Kok
Whether prevention of Urolithiasis is worthwhile is the outcome of the balance between efficacy of prevention and costs and efforts related of respectively prevention and treatment of a new stone. Well controlled trials demonstrate that effective prevention of new stone formation is possible using medical treatment and lifestyle interventions. In long-term general practice the results obtained with preventive interventions is disappointing. Low and diminishing long-term compliance to the intervention is a major cause for this...
February 2016: Urolithiasis
https://www.readbyqxmd.com/read/26645767/fluorometric-selective-detection-of-fluoride-ions-in-aqueous-media-using-ag-doped-cds-zns-core-shell-nanoparticles
#18
Siddhartha Sankar Boxi, Santanu Paria
The presence of fluoride ions in drinking water plays an important role in human health. For that reason, maintaining the optimum concentration of fluoride ions in drinking water is essential, as both low and excess (above the permissible level) concentrations can cause different health problems, such as fluorosis, urolithiasis, kidney failure, cancer, and can even lead to death. So, development of a simple and low cost method for the detection of fluoride ions in water is highly desirable. In this study, a fluorometric method based on Ag-CdS/Ag-ZnS core/shell nanoparticles is developed for fluoride ion detection...
January 14, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/26558046/extracorporeal-shockwave-lithotripsy-vs-percutaneous-nephrolithotomy-vs-flexible-ureterorenoscopy-for-lower-pole-stones
#19
REVIEW
Thomas Knoll, Noor Buchholz, Gunnar Wendt-Nordahl
OBJECTIVES: To review previous reports and discuss current trends in extracorporeal shockwave lithotripsy (ESWL), percutaneous nephrolithotomy (PCNL) and ureterorenoscopy (URS). ESWL was recommended as the first-line treatment for small and intermediate-sized stones in the lower pole, while it is the standard treatment for large stones. However, the stone clearance rate after ESWL seems to be lower than that of stones in other locations. This seems to result from a lower rate of fragment passage, due to anatomical factors...
September 2012: Arab Journal of Urology
https://www.readbyqxmd.com/read/26558036/economics-of-stone-disease-treatment
#20
REVIEW
Walter Ludwig Strohmaier
OBJECTIVES: Urolithiasis is a considerable economic burden for health systems, especially in industrialised countries where the incidence of stone disease has increased during the last few decades, and probably will further increase for several reasons. METHODS: The survey was based on investigations in collaboration with a German health insurance company and on a literature search (PubMed, and the author's collection of proceedings of urolithiasis conferences: The keywords included economics, cost, urolithiasis, nephrolithiasis, renal stone disease, metaphylaxis, recurrence) during 1999-2011...
September 2012: Arab Journal of Urology
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