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https://www.readbyqxmd.com/read/28340540/use-of-the-moses-technology-to-improve-holmium-laser-lithotripsy-outcomes-a-preclinical-study
#1
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/28331214/antihypertensive-medications-and-the-risk-of-kidney-stones-in-older-adults-a-retrospective-cohort-study
#2
R Todd Alexander, Eric McArthur, Racquel Jandoc, Blayne Welk, Jade S Hayward, Arsh K Jain, Branko Braam, Veit Flockerzi, Amit X Garg, Robert Ross Quinn
Antihypertensives are widely prescribed and could influence kidney stone risk by altering urinary calcium excretion. However, the impact of different classes of antihypertensives on kidney stone risk is unknown. To assess this impact, we conducted a retrospective, population-based cohort study using linked health administrative databases. Individuals aged >65 years who initiated one of the four antihypertensive classes (that is, angiotensin-converting enzyme inhibitors (ACEis)/angiotensin receptor blockers (ARBs), beta-blockers, calcium channel blockers or thiazide diuretics) were included...
March 23, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/28322584/editorial-comment-on-end-2016-0851-ra-r1
#3
Sara L Best
In their meta-analysis, Jones and colleagues found that bilateral synchronous PCNL was associated with similar stone free outcomes and complication rates as those reported for unilateral PCNL. The authors do an excellent job in emphasizing that BS-PCNL has primarily been reported by high volume centers. Previous investigations have demonstrated that PCNL outcomes are better and complication rates are lower at high volume centers.(1) Institutions that perform few PCNLs should be cautious about performing simultaneous bilateral procedures as their complication rate may be higher and exposing the patient to acute kidney injury could prove devastating...
March 21, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28281312/feasibility-of-single-session-endoscopic-combined-intrarenal-surgery-for-ipsilateral-large-renal-stones-and-retrograde-intrarenal-surgery-for-contralateral-renal-stones-initial-experience
#4
Ohseong Kwon, Juhyun Park, Min Chul Cho, Hwancheol Son, Hyeon Jeong, Sung Yong Cho
OBJECTIVES: To analyze the feasibility of carrying out endoscopic combined intrarenal surgery with supine miniaturized percutaneous nephrolithotomy and retrograde intrarenal surgery for patients with bilateral stones in a single session. METHODS: The records of consecutive patients presenting with bilateral kidney stones who underwent endoscopic combined intrarenal surgery with miniaturized percutaneous nephrolithotomy (15-Fr miniaturized nephroscope) and retrograde intrarenal surgery on one side, and retrograde intrarenal surgery on the contralateral side were prospectively collected and analyzed...
March 9, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28277037/fruit-extract-of-the-medicinal-plant-crataegus-oxyacantha-exerts-genotoxic-and-mutagenic-effects-in-cultured-cells
#5
Ana Paula Oliveira de Quadros, Dania Elisa Christofoletti Mazzeo, Maria Aparecida Marin-Morales, Fábio Ferreira Perazzo, Paulo Cesar Pires Rosa, Edson Luis Maistro
Crataegus oxyacantha, a plant of the Rosaceae family also known "English hawthorn, haw, maybush, or whitethorn," has long been used for medicinal purposes such as digestive disorders, hyperlipidemia, dyspnea, inducing diuresis, and preventing kidney stones. However, the predominant use of this plant has been to treat cardiovascular disorders. Due to a lack of studies on the genotoxicity of C. oxyacantha, this investigation was undertaken to determine whether its fruit extract exerts cytotoxic, genotoxic, or clastogenic/aneugenic effects in leukocytes and HepG2 (liver hepatocellular carcinoma) cultured human cells, or mutagenic effects in TA100 and TA98 strains of Salmonella typhimurium bacterium...
February 17, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28255414/prediction-of-fragmentation-of-kidney-stones-a-statistical-approach-from-ncct-images
#6
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/28247719/-cystine-as-a-risk-factor-of-the-stone-formation-in-kidney-the-reference-value-range-of-urinary-excretion-the-stage-diagnosis-of-cystine-metabolism-disorder
#7
A A Gres, D M Nitkin, T M Juraha, A A Sivakow
OBJECTIVE: to define the reference value ranges of cystine, lysine and arginine urinary excretion relative to creatinine in the morning urine samples for the metabolic disorders diagnosis leading to the formation of urinary stones. MATERIALS AND METHODS: the study involved 695 healthy individuals aged 1-17 and 1564 patients with urolithiasis aged 7-45. The content of cystine in the urine samples was determined by high performance liquid chromatography. The chemical composition of urinary stones was investigated by methods of the qualitative chemical reaction and the crystals microscopy...
August 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28247655/-the-choice-of-surgical-modality-to-treat-patients-with-staghorn-nephrolithiasis
#8
S B Imamverdiyev, T A Talybov
AIM: Improvement in the results of the treatment of patients suffering from staghorn and multiple nephrolithiasis, using open method of surgery and a retrospective analysis of the surgical data. MATERIAL AND METHODS: There was executed asurgical treatment of the 730 patients with staghorn and multiple nephrolithiasis in the period from 1998 to 2012. 480 of the patients had one-sided staghorn stones and 250 of them had double-sided staghorn stones. Age of the patients varied from 4 to 76 years old (average - 49)...
April 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28247641/-initial-experience-with-laparoscopic-anatrophic-nephrolithotomy
#9
A D Kochkin, A G Martov, F A Sevryukov, A V Knutov, V P Sergeev
Percutaneous nephrolithotomy is a recognized standard for minimally invasive treatment of large kidney stones. Percutaneous interventions for complete staghorn stones are associated with a higher risk of complications that precludes abandoning the traditional open operations, one of which is an anatrophic nephrolithotomy. This paper presents the first personal experience in laparoscopic transmesenteric anatrophic nephrolithotomy. The intervention was conducted in 3 patients (2 males and 1 female) aged 43 to 58 years, having a primary symptomatic complete left kidney staghorn stones sized from 7...
August 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28247628/-choosing-a-method-of-draining-the-upper-urinary-tract-following-percutaneous-nephrolithotripsy
#10
Ju G Alyaev, N A Grigoriev, N I Sorokin, I V Diakonov, S H Ali
PURPOSE: to compare various methods of upper urinary tract drainage in patients with urolithiasis. PATIENTS AND METHODS: 60 patients were included into a prospective study which ran from March 2013 through December 2014. All patients underwent PCNL with a nephrostomy tract diameter of (28-30 Ch.) at the I.M. Sechenov First Moscow State Medical University urology clinic. Patients were divided into 2 groups. Group 1 30 (patients) underwent nephrostomy after PCNL with nephrostomy tract placement, in group 2 (29 patients) internal drainage was performed...
August 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28243978/evaluation-of-in-vitro-and-in-vivo-anti-urolithiatic-activity-of-silver-nanoparticles-containing-aqueous-leaf-extract-of-tragia-involucrata
#11
Vinodhini Velu, Moonjit Das, Arunai Nambi Raj N, Kamal Dua, Himaja Malipeddi
The present investigation is focused on exploring the anti-urolithiatic potential of aqueous leaf extract of Tragia involucrata (TIA) and its silver nanoparticles (AgNPs) and to quantify the total phenol, flavonoid, terpenoid and sterol contents present in TIA. Quantification results suggested TIA to be a rich source of phenol, flavonoid and terpenoid and less of sterol content. The AgNPs were synthesized by a simple green method using aqueous extract of T. involucrata. The formation of AgNPs was confirmed through UV spectroscopy, particle size analysis, zeta potential, X-ray diffraction and transmission electron microscopy...
February 27, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28238670/association-of-pregnancy-with-stone-formation-among-us-women-a-national-health-and-nutrition-examination-survey-analysis-2007-2012
#12
Lael Reinstatler, Sari Khaleel, Vernon M Pais
PURPOSE: Lithogenic urinary changes occur during pregnancy. Such changes may increase stone proclivity in working and child rearing aged women thereafter. However, such an association has not been previously identified. MATERIALS AND METHODS: We analyzed nationally representative data from 2007-2012 National Health and Nutrition Examination Survey to assess the association between pregnancy and nephrolithiasis. RESULTS: The weighted national prevalence of nephrolithiasis among women ≤50 was 6...
February 23, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28237786/tract-sizes-in-miniaturized-percutaneous-nephrolithotomy-a-systematic-review-from-the-european-association-of-urology-urolithiasis-guidelines-panel
#13
Yasir Ruhayel, Abdulkadir Tepeler, Saeed Dabestani, Steven MacLennan, Aleš Petřík, Kemal Sarica, Christian Seitz, Andreas Skolarikos, Michael Straub, Christian Türk, Yuhong Yuan, Thomas Knoll
CONTEXT: Miniaturized instruments for percutaneous nephrolithotomy (PNL), utilizing tracts sized ≤22 Fr, have been developed in an effort to reduce the morbidity and increase the efficiency of stone removal compared with standard PNL (>22 Fr). OBJECTIVE: We systematically reviewed all available evidence on the efficacy and safety of miniaturized PNL for removing renal calculi. EVIDENCE ACQUISITION: The review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses statement...
February 22, 2017: European Urology
https://www.readbyqxmd.com/read/28236332/prevalence-of-kidney-stones-in-china-an-ultrasonography-based-cross-sectional-study
#14
Guohua Zeng, Zanlin Mai, Shujie Xia, Zhiping Wang, Keqin Zhang, Li Wang, Yongfu Long, Jinxiang Ma, Yi Li, Show P Wan, Wenqi Wu, Yongda Liu, Zelin Cui, Zhijian Zhao, Jing Qin, Tao Zeng, Yang Liu, Xiaolu Duan, Xin Mai, Zhou Yang, Zhenzhen Kong, Tao Zhang, Chao Cai, Yi Shao, Zhongjin Yue, Shujing Li, Jiandong Ding, Shan Tang, Zhangqun Ye
OBJECTIVES: To investigate the prevalence and associated factors of kidney stones among adults in China. SUBJECTS AND METHODS: A nationwide cross-sectional survey was conducted among persons aged 18 and older across China from May 2013 to July 2014. Participants underwent urinary tract ultrasonographic examinations, questionnaires, and provided blood and urine samples to analyze. Kidney stones were defined as particles in size of 4 mm or greater. Prevalence was defined as the proportion of participants with kidney stone and binary logistic regression was used to estimate the associated factors...
February 25, 2017: BJU International
https://www.readbyqxmd.com/read/28235550/a-10-year-retrospective-review-of-nephrolithiasis-in-the-navy-and-navy-pilots
#15
James H Masterson, Christopher J Phillips, Nancy F Crum-Cianflone, Robert J Krause, Roger L Sur, James O L'Esperance
PURPOSE: Little is known about the incidence of nephrolithiasis in the U.S. Navy, and Navy pilots must be kidney stone-free and are often referred for treatment of small asymptomatic stones. The primary objectives of this study were to determine the incidence of nephrolithiasis, CT scans performed, proportion undergoing treatment, and incidence of stone-related mishaps of Navy pilots compared with other Navy personnel. MATERIALS AND METHODS: We performed a retrospective study of all Navy service members from 2002-2011 for nephrolithiasis (based on ICD-9 stone codes) to determine the above rates, and reviewed Naval Safety Center (NSC) data for a history of accidents associated with nephrolithiasis...
February 21, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28233118/crystal-arthritides-gout-and-calcium-pyrophosphate-arthritis-part%C3%A2-2-clinical-features-diagnosis-and-differential-diagnostics
#16
REVIEW
S Schlee, L C Bollheimer, T Bertsch, C C Sieber, P Härle
Gout develops in four stages beginning with an asymptomatic increase in blood levels of uric acid. An acute gout attack is an expression of an underlying inflammatory process, which in the course of time is self-limiting. Without therapy monosodium urate crystals remain in the synovial fluid and synovial membrane and trigger more acute attacks. In the course of the disease monosodium urate crystals form deposits (tophi) leading in severe forms to irreversible joint deformities with loss of functionality. In 20% of cases gout leads to involvement of the kidneys...
February 23, 2017: Zeitschrift Für Gerontologie und Geriatrie
https://www.readbyqxmd.com/read/28233025/emergent-versus-delayed-lithotripsy-for-obstructing-ureteral-stones-a-cumulative-analysis-of-comparative-studies
#17
Davide Arcaniolo, Marco De Sio, Jens Rassweiler, Jilian Nicholas, Estevão Lima, Giuseppe Carrieri, Evangelos Liatsikos, Vincenzo Mirone, Manoj Monga, Riccardo Autorino
OBJECTIVE: To analyze the current evidence on the use of ureteroscopy (URS) and extracorporeal shock wave lithotripsy (ESWL) for the management of obstructing ureteral stones in emergent setting. METHODS: A systematic literature review was performed up to June 2016 using Pubmed and Ovid databases to identify pertinent studies. The PRISMA criteria were followed for article selection. Separate searches were done using a combinations of several search terms: "laser lithotripsy", "ureteroscopy", "extracorporeal shock wave lithotripsy", "ESWL", "rapid", "immediate", "early", "delayed", "late", "ureteral stones", "kidney stones", "renal stones"...
February 23, 2017: Urolithiasis
https://www.readbyqxmd.com/read/28208537/re-hypercalcemia-hypercalciuria-and-kidney-stones-in-long-term-studies-of-vitamin-d-supplementation-a-systematic-review-and-meta-analysis
#18
Dean G Assimos
No abstract text is available yet for this article.
March 2017: Journal of Urology
https://www.readbyqxmd.com/read/28188435/marked-increase-in-urinary-excretion-of-apolipoproteins-in-children-with-nephrolithiasis-associated-with-hypercalciuria
#19
Larisa Kovacevic, Hong Lu, Joseph A Caruso, Tuhina Govil-Dalela, Ronald Thomas, Yegappan Lakshmanan
BACKGROUND: Using a proteomic approach, we aimed to identify and compare the urinary excretion of proteins involved in lipid transport and metabolism in children with kidney stones and hypercalciuria (CAL), hypocitraturia (CIT), and normal metabolic work-up (NM), and in healthy controls (HCs). Additionally, we aimed to confirm these results using ELISA, and to examine the relationship between the urinary excretion of selected proteins with demographic, dietary, blood, and urinary parameters...
February 10, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28169121/-percutaneous-nephrolithotomy-for-kidney-stones-in-elderly-patients-meta-analysis-of-results-and-complications
#20
R Haider, P Regnier, F-R Roustan, F Séverac, P-J Treacy, L Mendel, Y Bodokh, B Tibi, R Prader, O Traxer, D Chevallier, J Amiel, M Durand
INTRODUCTION AND OBJECTIVE: Percutaneous nephrolithotomy (PCNL) is the gold standard treatment for kidney stones regardless of age. Elderly patients (EP)≥65years old, in growing numbers, have more comorbidities than the general population, may alter results of PCNL. The aim of this meta-analysis was to compare efficacy and complications of this procedure between EP and young patients (YP). METHODS: Original studies of prospective and historical cohorts, in English or French, presenting PCNL series published on PubMed until 2015 were identified using the keywords percutaneous nephrolithotomy, elderly patients, kidney stones and staghorn calculi...
February 2017: Progrès en Urologie
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