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Urolithiasis

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https://www.readbyqxmd.com/read/28213854/bilateral-simultaneous-ureteroscopic-bs-urs-approach-in-the-management-of-bilateral-urolithiasis-is-a-safe-and-effective-strategy-in-the-contemporary-era-evidence-from-a-systematic-review
#1
REVIEW
Robert M Geraghty, Bhavan P Rai, Patrick Jones, Bhaskar K Somani
PURPOSE OF REVIEW: Ureteroscopic treatment of urolithiasis has become safer and more effective in the modern era. With a rise in the incidence of bilateral urolithiasis, management dilemma of staged single-side ureteroscopy versus bilateral simultaneous ureteroscopy (BS-URS) is often debatable. This review evaluates the current evidence base for bilateral simultaneous ureteroscopic approach in the modern era. RECENT FINDINGS: A systematic review was conducted from 1990 to June 2016 including all English language articles reporting on outcomes of BS-URS for urolithiasis...
February 2017: Current Urology Reports
https://www.readbyqxmd.com/read/28208926/simultaneous-transabdominal-hysterectomy-and-cystolithotomy-in-an-augmented-urinary-bladder-challenges-and-outcome
#2
Vijay Sharma, Rakesh Kapoor, Priyank Yadav, Pankaj Gaur, Deepa Kapoor
Augmentation cystoplasty is a procedure to increase the anatomical as well as functional capacity of the urinary bladder using a segment of bowel or ureter. Upto half of these patients develop complications but most of them are minor and managed easily. Urolithiasis, especially bladder calculi are seen in upto half of the cases and are removed endoscopically or by open approach. Hysterectomy is an uncommon procedure in patients with augmentation cystoplasty and is complicated by the altered anatomy of the pelvis...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208191/-urinary-stone-analysis-what-does-the-future-hold-in-store
#3
A Miernik, S Hein, K Wilhelm, M Schoenthaler
Analysis of the composition of a urinary stone is one of the most important steps in the clinical management of patients with urolithiasis. Fourier transform infrared spectroscopy, X-ray diffractometry and petrographic microscopy are the techniques currently used. Novel technical developments in recent years - such as Raman spectroscopy and hyperspectral imaging - have resulted in new approaches to improve urinary stone analysis. In future, table-top portable systems may be used that allow stones to be rapidly examined directly after the operation...
February 16, 2017: Aktuelle Urologie
https://www.readbyqxmd.com/read/28207316/calcium-sulfate-dihydrate-urolithiasis-in-a-pet-rabbit
#4
Jaroslav Kucera, Tamara Koristkova, Barbora Gottwaldova, Vladimir Jekl
CASE DESCRIPTION A 3-year-old sexually intact male rabbit (Oryctolagus cuniculus) was evaluated because of a 1-day history of signs of anorexia and depression. CLINICAL FINDINGS Clinical examination revealed signs of depression, hunched posture, low skin elasticity (suggesting dehydration), slightly distended abdomen, and penile and preputial edema. The owner reported that the rabbit had been fed a routine diet, received water via a sipper bottle, and was allowed free movement around the home. It had been observed by the owner to bite and chew gypsum-based plaster from the walls of the home...
March 1, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28190500/urethral-obstruction-in-male-cats-in-some-northern-united-states-shows-regional-seasonality
#5
Julia P Sumner, Mark Rishniw
Feline lower urinary tract disease (FLUTD) is a term encompassing several different conditions affecting the feline lower urinary tract. Certain FLUTD aetiologies, such as idiopathic cystitis, urethral plugs or urolithiasis, commonly produce urethral obstruction (UO) in male cats. It is widely accepted that environmental, behavioural and dietary factors can play a role in the aetiopathogenesis of these conditions. We investigated the seasonal prevalence of UO by analysing admission dates of 2443 male cats with UO from eight practices in the Northern USA over a 4-year period...
February 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28185760/why-we-need-a-higher-suspicion-index-of-urolithiasis-in-children
#6
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/28181139/cytoprotective-and-anti-apoptotic-role-of-terminalia-arjuna-on-oxalate-injured-renal-epithelial-cells
#7
Amisha Mittal, Simran Tandon, Surender Kumar Singla, Chanderdeep Tandon
Urolithiasis is one of the painful multifactorial disorders caused by metabolic abnormalities influencing the composition of body fluids and urine. The bark of Terminalia arjuna (T. arjuna), very well known in Ayurveda for the treatment of cardiovascular diseases, possesses antioxidant and diuretic activity. The present study was undertaken to investigate the antiurolithiatic efficacy of aqueous extract of bark of T. arjuna on oxalate-induced injury to renal tubular epithelial cells. Madin-Darby canine kidney (MDCK) cells were exposed to 2 mM oxalate for 48 h to evaluate the protective effect of T...
February 8, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28178975/evaluation-of-dogs-with-genetic-hyperuricosuria-and-urate-urolithiasis-consuming-a-purine-restricted-diet-a-pilot-study
#8
Jodi L Westropp, Jennifer A Larsen, Eric G Johnson, Dannika Bannasch, Andrea J Fascetti, Vincent Biourge, Yann Queau
BACKGROUND: Urate urolithiasis is a common problem in breed homozygous for the mutation that results in hyperuricosuria. Low purine diets have been recommended to reduce purine intake in these dogs. METHODS: A higher protein, purine restricted diet with water added was evaluated in dogs with genetic hyperuricosuria and a history of clinical urate urolithiasis over a one year time period. Dogs were evaluated at baseline and 2, 6, and 12 months after initiating the test diet...
February 8, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28175995/pediatric-urolithiasis-associated-with-acute-gastroenteritis-an-inpatient-database-study-in-japan
#9
Masato Takeuchi, Hideo Yasunaga, Hiroki Matsui, Kiyohide Fushimi
: Pediatric urolithiasis associated with acute gastroenteritis (AGE) has not been systematically investigated, including its prevalence, risk estimate, and outcome. Using a national inpatient database in Japan, we searched for children (≤59 months old) who were hospitalized for AGE and those complicated by urolithiasis over a 24-month period. We found 23 cases of urolithiasis among 62,800 children who were hospitalized for AGE (3.7 cases/10,000 AGE admissions). AGE was associated with an increased risk of urolithiasis (odds ratio 2...
February 8, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28165480/%C3%AE-lipoic-acid-treatment-prevents-cystine-urolithiasis-in-a-mouse-model-of-cystinuria
#10
Tiffany Zee, Neelanjan Bose, Jarcy Zee, Jennifer N Beck, See Yang, Jaspreet Parihar, Min Yang, Sruthi Damodar, David Hall, Monique N O'Leary, Arvind Ramanathan, Roy R Gerona, David W Killilea, Thomas Chi, Jay Tischfield, Amrik Sahota, Arnold Kahn, Marshall L Stoller, Pankaj Kapahi
Cystinuria is an incompletely dominant disorder characterized by defective urinary cystine reabsorption that results in the formation of cystine-based urinary stones. Current treatment options are limited in their effectiveness at preventing stone recurrence and are often poorly tolerated. We report that the nutritional supplement α-lipoic acid inhibits cystine stone formation in the Slc3a1(-/-) mouse model of cystinuria by increasing the solubility of urinary cystine. These findings identify a novel therapeutic strategy for the clinical treatment of cystinuria...
February 6, 2017: Nature Medicine
https://www.readbyqxmd.com/read/28161351/trends-in-imaging-use-for-the-evaluation-and-follow-up-of-kidney-stone-disease-a-single-center-experience
#11
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
https://www.readbyqxmd.com/read/28160089/urolithiasis-evaluation-dietary-factors-and-medical-management-an-update-of-the-2014-siu-icud-international-consultation-on-stone-disease
#12
Helene Jung, Sero Andonian, Dean Assimos, Timothy Averch, Petrisor Geavlete, Yasuo Kohjimoto, Andreas Neisius, Joe Philip, Alberto Saita, Hemendra Shah, Palle Jörn Osther
PURPOSE: The aim of this review was to provide current best evidence for evaluation, dietary, and medical management of patients with urolithiasis. METHODS: Literature addressing evaluation, dietary, and medical management of urolithiasis was searched. Papers were analyzed and rated according to level of evidence (LOE), whereupon a synthesis of the evidence was made. Grade of recommendation (GOR) was judged from individual clinical experience and knowledge of the evidence according to the Oxford Centre for Evidence-based Medicine...
February 3, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/28146287/vesicopreputial-anastomosis-for-the-treatment-of-obstructive-urolithiasis-in-goats
#13
Elizabeth Erin Cypher, Sarel R van Amstel, Ricardo Videla, Kyle Force Clark, David E Anderson
OBJECTIVE: To describe a novel surgical technique for the correction of recurrent obstructive urolithiasis in male goats. STUDY DESIGN: Clinical case series. ANIMALS: Castrated male goats (n = 4). METHODS: Medical records of male goats having undergone vesicopreputial anastomosis (VPA) as a treatment for obstructive urolithiasis were reviewed for history, signalment, clinical signs, and intraoperative and postoperative complications...
February 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28139077/systematic-review-and-meta-analysis-of-the-diagnostic-accuracy-of-low-dose-computed-tomography-of-the-kidneys-ureters-and-bladder-for-urolithiasis
#14
REVIEW
Hao Xiang, Michael Chan, Victoria Brown, Ya Ruth Huo, Lewis Chan, Lloyd Ridley
Renal colic is a common clinical condition which is often investigated with a CT of the kidneys, ureters and bladder (CTKUB). Recent technological improvements have allowed a reduction in dose with the emergence of low-dose CTKUB (LD-CTKUB) techniques. The present meta-analysis aims to determine the diagnostic accuracy of LD-CTKUB in the diagnosis of clinically significant uroliths. A systematic review was performed using nine electronic databases from their dates of inception to May 2016. Inclusion criteria included studies reporting comparative outcomes using LD-CTKUB with a dose less than 3 millisieverts compared to an imaging gold standard or clinical and surgical evaluation...
January 31, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28130156/kidney-stone-nano-structure-is-there-an-opportunity-for-nanomedicine-development
#15
N Vordos, S Giannakopoulos, D A Gkika, J W Nolan, Ch Kalaitzis, D V Bandekas, C Kontogoulidou, A Ch Mitropoulos, S Touloupidis
BACKGROUND: Kidney stone analysis techniques are well-established in the field of materials characterization and provide information for the chemical composition and structure of a sample. Nanomedicine, on the other hand, is a field with an increasing rate of scientific research, a big budget and increasingly developing market. The key scientific question is if there is a possibility for the development of a nanomedicine to treat kidney stones. MAJOR CONCLUSIONS: The main calculi characterization techniques such as X-ray Diffraction and Fourier Transform Infrared Spectroscopy can provide information about the composition of a kidney stone but not for its nanostructure...
January 24, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28126212/imaging-in-urolithiasis
#16
REVIEW
William R Masch, Kevin C Cronin, Dushyant V Sahani, Avinash Kambadakone
Imaging plays an important role in the diagnosis of urolithiasis as well as its pre-treatment planning and post-treatment follow-up. Proper imaging technique is essential to provide appropriate clinical care to affected patients. This article reviews the clinically relevant imaging findings most likely to influence management decisions.
March 2017: Radiologic Clinics of North America
https://www.readbyqxmd.com/read/28125004/antioxidant-pre-treatment-reduces-the-toxic-effects-of-oxalate-on-renal-epithelial-cells-in-a-cell-culture-model-of-urolithiasis
#17
Tomislav Kizivat, Martina Smolić, Ivana Marić, Maja Tolušić Levak, Robert Smolić, Ines Bilić Čurčić, Lucija Kuna, Ivan Mihaljević, Aleksandar Včev, Sandra Tucak-Zorić
Urolithiasis is characterized by the formation and retention of solid crystals within the urinary tract. Kidney stones are mostly composed of calcium oxalate, which predominantly generates free radicals that are toxic to renal tubular cells. The aim of the study is to explore possible effects of antioxidant pre-treatment on inhibition of oxidative stress. Three cell lines were used as in vitro model of urolithiasis: MDCK I, MDCK II and LLC-PK1. Oxidative stress was induced by exposure of cells to sodium oxalate in concentration of 8 mM...
January 23, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28124870/rigid-only-versus-combined-rigid-and-flexible-percutaneous-nephrolithotomy-pnl-a-systematic-review
#18
Cecilia M Cracco, Thomas Knoll, Evangelos N Liatsikos, Palle J Osther, Arthur D Smith, Roberto M Scarpa, Cesare M Scoffone
INTRODUCTION: Percutaneous nephrolithotomy (PNL) is usually performed worldwide with a rigid-only antegrade approach. Daily practice suggests that adding flexible nephroscopy and/or ureteroscopy to conventional rigid PNL might improve its efficacy and safety, but available evidence is weak. Appraisal of reliable outcomes of such PNL techniques would better guide intraoperative choices and optimize surgical results. Therefore our objective was to systematically review relevant literature comparing the outcomes of rigid-only PNL and combined flexible PNLs (adding flexible nephroscopy and/or flexible ureteroscopy) for the treatment of large and/or complex upper urinary tract calculi, with regard to efficacy and safety...
January 26, 2017: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/28124638/clinical-assessment-of-urinary-tract-damage-during-sustained-release-estrogen-supplementation-in-mice
#19
Dalis E Collins Kathleen R Mulka Mark J Hoenerhoff Russell S Taichman And Jason S Villano
Estrogen supplementation is a key component of numerous mouse research models but can adversely affect the urinary system.The goal of this study was to develop a clinical scoring system and identify biomarkers of occult urinary tract lesions prior to the development of systemic illness in mice. Ovariectomized or sham-surgery SCID mice were implanted subcutaneously with a placebo pellet or one containing sustained-release estradiol (0.18 mg 60-d release 17β-estradiol). Mice were assessed twice weekly for 4 to 6 wk by using a clinical scoring system that included body condition, general activity, posture, hair coat, hydration, abdominal distension, urine staining of coat and skin, and ability to urinate...
January 25, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/28124521/forming-a-stone-in-pelviureteric-junction-obstruction-cause-or-effect
#20
Theodora Stasinou, Andreas Bourdoumis, Junaid Masood
OBJECTIVES: To investigate a possible causal relationship for stone formation in pelviureteric junction obstruction and to outline management options. MATERIALS AND METHODS: A literature search and evidence synthesis was conducted via electronic databases in the English language using the key words pelviureteric junction obstruction; urolithiasis; hyperoxaluria; laparoscopic pyeloplasty; flexible nephroscopy; percutaneous nephrolithotomy, alone or in combination...
January 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
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