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urinary calculi

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https://www.readbyqxmd.com/read/28515805/is-computed-tomography-defined-obstruction-a-predictor-of-urological-intervention-in-emergency-department-patients-presenting-with-renal-colic
#1
Peter Alexander Massaro, Avinash Kanji, Paul Atkinson, Ryan Pawsey, Tom Whelan
INTRODUCTION: Our objective was to determine whether unilateral calculus-induced ureteric obstruction on computed tomography (CT) was independently associated with the need for urological intervention and 30-day return to the emergency department (ED). METHODS: We performed a retrospective cohort study of patients with symptomatic urinary calculi diagnosed by unenhanced helical CT. Stepwise regression analysis was used to determine the predictors of urological intervention and 30-day return to the ED...
March 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28513524/ureterolithiasis-management-in-an-environment-with-limited-facilities
#2
C A Odoemene, Pcn Okere, M C Ugonabo
BACKGROUND: In the past 2-3 decades, there has been a dramatic development in the techniques of stone removal. This study highlights the management of symptomatic ureteral stones in an environment without such facilities. MATERIALS AND METHODS: Sixty-nine patients, comprising 53 (76.8%) males and 16 (23.2%) females, diagnosed of symptomatic ureteric calculi within the study period in two tertiary health institutions were included in the study. Thorough history taking and physical examinations were performed...
May 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28510274/the-effect-of-prazosin-on-outcome-in-feline-urethral-obstruction
#3
Erica L Reineke, Emily K Thomas, Rebecca S Syring, Jennifer Savini, Kenneth J Drobatz
OBJECTIVE: To determine whether prazosin administration following urethral obstruction (UO) reduces the risk for recurrent urethral obstruction (rUO) or lower urinary tract signs, and to document adverse effects associated with prazosin use in cats. DESIGN: Double-blinded, prospective, interventional study. SETTING: University teaching hospital. ANIMALS: A population of 47 consecutive male cats with UO not associated with urinary tract calculi >2 mm in diameter...
May 16, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28483465/use-of-medical-expulsive-therapy-in-children-an-assessment-of-nationwide-practice-patterns-and-outcomes
#4
Jonathan S Ellison, Paul A Merguerian, Benjamin C Fu, Sarah K Holt, Thomas S Lendvay, John L Gore, Margarett Shnorhavorian
INTRODUCTION: Early data support the use of medical expulsive therapy (MET) in children. However, little is known regarding use or outcomes associated with MET outside of pediatric-specific practices. Using a national administrative dataset, we sought to characterize utilization patterns of MET as well as assess outcomes associated with MET exposure. STUDY DESIGN: We interrogated the MarketScan Commercial Claims and Encounters database to identify children under the age of 18 presenting to the emergency department (ED) with any diagnosis of upper urinary tract calculi (UUTC, including renal and ureteral calculi)...
April 20, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28446830/bryophyllum-pinnatum-leaf-extracts-prevent-formation-of-renal-calculi-in-lithiatic-rats
#5
Mahendra Yadav, Vijay D Gulkari, Manish M Wanjari
BACKGROUND: Bryophyllum pinnatum, commonly known as Pattharcaṭṭa, is used traditionally in ethnomedicinal practices for the treatment of kidney stone and urinary insufficiency. AIM: The present study evaluated the effect of Bryophyllum pinnatum on ethylene glycol (EG)-induced renal calculi in rats. MATERIALS AND METHODS: Renal calculi were induced in rats by administration of 0.75% EG in drinking water and co-treated orally with standard drug, Cystone (750 mg/kg), or alcoholic and hydro-alcoholic extracts in doses of 100, 200 and 400 mg/kg for 28 days...
October 2016: Ancient Science of Life
https://www.readbyqxmd.com/read/28430340/transurethral-contact-ureterolithotripsy-in-gas-%C3%B0-%C3%B0-2-medium
#6
Dmitry O Korolev, Peter V Glybochko, Leonid M Rapoport, Dmitry G Tsarichenko
BACKGROUND: Transurethral intracorporeal lithotripsy is the modality of choice for the endoscopic disintegration of large, long-standing, radiolucent or high-density stones. Despite several advantages and proven benefits of contact ureterolithotripsy/ureterolithoextraction (CULT), the application of irrigation carries significant risks of untoward perioperative events including retrograde stone migration and postoperative pyelonephritis. METHODS: We describe a new technique - endoscopic intracorporeal lithotripsy in the gas (СО2) medium...
April 14, 2017: Urologia
https://www.readbyqxmd.com/read/28427449/urolithiasis-analysis-in-a-multiethnic-population-at-a-tertiary-hospital-in-nairobi-kenya
#7
Francis K Wathigo, Alfred Hayombe, Daniel Maina
BACKGROUND: Urolithiasis is a global problem whose incidence is reported to be on the rise across the world. Previously, urolithiasis was reported as being rare among the indigenous African population but recent data suggest otherwise. This study reviewed the demographic and clinical characteristics of patients with urolithiasis seen at the Aga Khan University hospital Nairobi (AKUHN) as well as the chemical composition of the stones and the modalities of therapy used. METHODS: This was a retrospective study which utilized patients' clinical and laboratory records from 2013 to 2014...
April 20, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28417852/nuclear-medicine-in-pediatric-nephro-urology-an-overview
#8
REVIEW
Iosif Mendichovszky, Bernardita Troncoso Solar, Naima Smeulders, Marina Easty, Lorenzo Biassoni
In the context of ante-natally diagnosed hydronephrosis, the vast majority of children with a dilated renal pelvis do not need any surgical treatment, as the dilatation resolves spontaneously with time. Slow drainage demonstrated at Tc-99m-mercaptoacetyltriglycine (MAG3) renography does not necessarily mean obstruction. Obstruction is defined as resistance to urinary outflow with urinary stasis at the level of the pelvic-ureteric junction (PUJ) which, if left untreated, will damage the kidney. Unfortunately this definition is retrospective and not clinically helpful...
May 2017: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/28360958/rare-complication-of-needleless-mini-sling-procedure-case-report
#9
Mustafa Karalar, Ibrahim Keles, Serdar Unlu, Hasmet Sarici, Mesut Kose, Cemil Ay
The mini-sling procedure is a widely used, minimally invasive treatment for stress urinary incontinence. While bladder perforation and stone formation over the mesh is not an expected complication of the mini-sling procedure, in this case, we report on the management of bladder calculi formed over the mesh, which was passed through the bladder while applying the mini-sling procedure, and was eventually removed using holmium laser. Performing cystoscopy in patients with irritative and obstructive symptoms after the sling procedure will help confirm bladder perforation, and an endoscopic approach using holmium laser is an effective treatment...
March 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28359409/surgical-management-of-urinary-stones-with-abnormal-kidney-anatomy
#10
Giray Ergin, Mustafa Kirac, Ali Unsal, Burak Kopru, Mustafa Yordam, Hasan Biri
In spite of the fact that urologic surgical techniques used by urologists are becoming more and more minimally invasive and easier because of developing technologies, surgical approaches for the urinary stones in kidneys with abnormal anatomy are still confusing. The objective of this article is to determine the treatment options in these kidneys. For this purpose, between 2005 and 2015, we retrospectively evaluated patients operated for urolithiasis with various congenital renal anomalies in five referral urology clinics in our country...
April 2017: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/28357452/determinants-of-health-related-quality-of-life-for-patients-after-urinary-lithotripsy-ureteroscopic-vs-shock-wave-lithotripsy
#11
Shuzo Hamamoto, Rei Unno, Kazumi Taguchi, Taku Naiki, Ryosuke Ando, Atsushi Okada, Takaaki Inoue, Shinsuke Okada, Mostafa AbdelRazek, Kenjiro Kohri, Takahiro Yasui
PURPOSE: To compare the longitudinal health-related quality of life (HRQoL) after surgical intervention with ureteroscopic lithotripsy (URSL) and shock wave lithotripsy (SWL) and to evaluate the factors affecting HRQoL in urolithiasis patients. METHODS: A total of 262 patients who underwent lithotripsy (SWL, n = 61; URSL, n = 201) for upper urinary tract calculi treatment between June 2012 and January 2015 were evaluated. All patients were administered the Short-Form 36-item survey (SF-36) to assess HRQoL at four timepoints: before surgery, on the day of discharge, and 1 and 6 months after lithotripsy...
March 29, 2017: Urolithiasis
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
#12
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/28324714/association-between-nephrolithiasis-and-fatty-liver-detected-on-non-enhanced-ct-for-clinically-suspected-renal-colic
#13
Abdel-Rauf Zeina, Limor Goldenberg, Alicia Nachtigal, Rabea Hasadia, Walid Saliba
PURPOSE: To estimate a direct association between nephrolithiasis and hepatosteatosis in patients referred to CT due to clinical suspicion of renal colic. METHODS: A 508 non-contrast CT scans were examined for calculi in the kidneys or urinary tract, including measurements of liver attenuation, spleen attenuation, thickness of visceral and subcutaneous fat. Logistic regression examined the association of nephrolithiasis and hepatosteatosis findings. RESULTS: Nephrolithiasis was found in 421 (83...
May 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28303335/treatment-selection-for-urolithiasis-percutaneous-nephrolithomy-ureteroscopy-shock-wave-lithotripsy-and-active-monitoring
#14
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/28301210/update-of-dual-energy-ct-applications-in-the-genitourinary-tract
#15
Ravi K Kaza, Lakshmi Ananthakrishnan, Avinash Kambadakone, Joel F Platt
OBJECTIVE: Dual-energy CT (DECT) is being increasingly used for abdominal imaging because it provides incremental benefit of material characterization without significant increase in radiation dose. This article provides an overview of current DECT techniques and use of DECT in urinary tract imaging for assessment of renal masses and urinary calculi characterization and in CT urography. CONCLUSION: Incorporation of DECT into clinical practice and use of its material characterization capabilities in urinary tract imaging enable characterization of urinary calculi and incidental renal lesions and can reduce radiation dose by allowing generation of virtual unenhanced images...
March 16, 2017: AJR. American Journal of Roentgenology
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
#16
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/28265592/multiple-uric-acid-bladder-stones-clinical-presentation-and-endoscopic-management
#17
Fabio Cesar Miranda Torricelli, Shih-Chieh Jeff Chueh, Shujane Shen, Manoj Monga
Background: Bladder urinary calculi occur in 3%-8% of men with bladder outlet obstruction, and although most of them are composed of calcium, in a few cases uric acid bladder stones are diagnosed. Case Presentation: We present clinical images and therapeutic management of a 65-year-old diabetic man with significant prostate enlargement and >30 bladder stones, the largest being 17 mm. Despite the large stone burden, the patient was managed by cystolithotripsy. Remarkably, stone composition analysis revealed 100% uric acid stone...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/28260911/increased-risk-of-endotracheal-intubation-and-heart-failure-following-acute-myocardial-infarction-in-patients-with-urolithiasis-a-nationwide-population-based-study
#18
Shun-Ku Lin, Jui-Ming Liu, Ying-Hsu Chang, Yuan-Tien Ting, See-Tong Pang, Ren-Jun Hsu, Po-Hung Lin
BACKGROUND: Urolithiasis is a common urinary tract disease worldwide. It has been connected to systemic diseases, including hypertension, diabetes mellitus, metabolic syndrome, and cardiovascular disease. In the current study, we aimed to evaluate the relationship between urolithiasis and the complications of acute myocardial infarction (AMI). MATERIALS AND METHODS: Data were obtained from the Longitudinal Health Insurance Database 2005 of the National Health Insurance Research Database...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28258472/prevalence-of-renal-uric-acid-stones-in-the-adult
#19
Alberto Trinchieri, Emanuele Montanari
The aim of this study was to estimate uric acid renal stone prevalence rates of adults in different countries of the world. PubMed was searched for papers dealing with "urinary calculi and prevalence or composition" for the period from January 1996 to June 2016. Alternative searches were made to collect further information on specific topics. The prevalence rate of uric acid stones was computed by the general renal stone prevalence rate and the frequency of uric acid stones in each country. After the initial search, 2180 papers were extracted...
March 3, 2017: Urolithiasis
https://www.readbyqxmd.com/read/28229196/the-impact-of-ureteral-stent-indwelling-time-on-the-treatment-of-acute-infection-caused-by-ureteral-calculi
#20
Yun-Feng Shi, Wen-Long Ju, Yi-Ping Zhu, Shu-Jie Xia, Xiao-Wen Sun
Ureteric stenting is an effective drainage method in patients with acute urinary tract infection caused by ureteral calculi; however, the optimal ureteral stent indwelling time has not been clearly defined. The aim of this study was to evaluate the effect of ureteric stent indwelling time on the treatment of acute infection secondary to urinary tract calculi. A total of 142 patients with acute infection caused by urinary tract calculi were identified retrospectively from January 2011 to August 2015 at our institution...
February 22, 2017: Urolithiasis
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