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Urolithiasis

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https://www.readbyqxmd.com/read/29305631/the-risk-of-bladder-cancer-in-patients-with-urinary-calculi-a-meta-analysis
#1
REVIEW
Zhang Yu, Wu Yue, Li Jiuzhi, Jiang Youtao, Zhang Guofei, Guo Wenbin
The objective of this meta-analysis was to evaluate the association between a history of urinary calculi (UC) and the risk of bladder cancer (BC). A literature search was performed from inception until July 2017. Studies that reported odds ratios (OR), relative risks or hazard ratios comparing the risk of BC in patients with the history of UC vs those without the history of UC were included. Pooled odds ratios and 95% confidence interval (CI) were calculated using a random-effect or fixed-effect method. Thirteen studies were included in our analysis to assess the association between a history of UC and risk of BC...
January 5, 2018: Urolithiasis
https://www.readbyqxmd.com/read/29243096/miniaturisation-of-pcnl
#2
REVIEW
Sven Lahme
Conventional PCNL leads to a high stone-free rate but is associated with a significant treatment morbidity. To decrease the morbidity of PCNL but to achieve an equal stone-free rate, in 2001 a miniaturised version of a conventional PCNL (Mini-PCNL) was introduced. Meanwhile numerous modifications of the Mini-PCNL were reported. The ongoing experience with the Mini-PCNL technique showed that Mini-PCNL is not only a miniaturisation but also a different method to remove the stones, as the stones come out of the calyceal system only by means of the irrigation flow without any further need of forceps or baskets...
December 14, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29236151/the-effects-of-hap-and-macrophage-cells-to-the-expression-of-inflammatory-factors-and-apoptosis-in-hk-2-cells-of-vitro-co-cultured-system
#3
Junchuan Yu, Yaoliang Deng, Zhiwei Tao, Weixia Liang, Xiaofeng Guan, Jihua Wu, Xin Ning, Yunlong Liu, Quan Liu, Ziqi He
This study developed an in vitro system by co-culturing HK-2 cells with different concentration of hydroxyapatite (HAP) and/or macrophage cells to simulate the internal environment of urolithiasis as far as possible, investigating the regulatory effects of macrophage cells on HAP-induced expression of relative inflammatory factors of HK-2 cells. The control group (H group) was only comprised of HK-2 cells. Experimental groups included co-culturing HK-2 cells and macrophage cells (H + M group), co-culturing HK-2 cells and HAP (H + A group), co-culturing macrophage cells and HAP (M + A group), and co-culturing HK-2 cells and macrophage cells with HAP (H + M + A group)...
December 13, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29234857/high-frequency-and-wide-range-of-human-kidney-papillary-crystalline-plugs
#4
Léa Huguet, Marine Le Dudal, Marine Livrozet, Dominique Bazin, Vincent Frochot, Joëlle Perez, Jean-Philippe Haymann, Isabelle Brocheriou, Michel Daudon, Emmanuel Letavernier
Most of kidney stones are supposed to originate from Randall's plaque at the tip of the papilla or from papillary tubular plugs. Nevertheless, the frequency and the composition of crystalline plugs remain only partly described. The objective was to assess the frequency, the composition and the topography of papillary plugs in human kidneys. A total of 76 papillae from 25 kidneys removed for cancer and without stones were analysed by immunohistochemistry combined with Yasue staining, field emission-scanning electron microscopy and Fourier transformed infrared micro-spectroscopy...
December 12, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29224057/identifying-factors-associated-with-need-for-flexible-ureteroscope-repair-a-western-endourology-stone-west-research-consortium-prospective-cohort-study
#5
Kazumi Taguchi, Jonathan D Harper, Marshall L Stoller, Brian D Duty, Mathew D Sorensen, Roger L Sur, Manint Usawachintachit, David T Tzou, David L Wenzler, Dylan Isaacson, Angela Xu, Carissa Chu, Uwais B Zaid, Eric R Taylor, Krishna Ramaswamy, Thomas Chi
Maintenance of flexible ureteroscopes can involve high costs and administrative burden. Instrument fragility necessitates eventual repair, rendering scopes inaccessible during refurbishment. We conducted a multi-institutional prospective cohort study to identify perioperative factors influencing flexible ureteroscope durability. Patients undergoing flexible ureteroscopy (URS) at six United States endourology centers were enrolled between August 2014 and June 2015. Surgeon self-reported concern and satisfaction with scope performance as well as upward and downward angles of deflection for each scope tip were measured before and after each procedure...
December 9, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29222575/flexible-ureteroscopy-technique-tips-and-tricks
#6
REVIEW
Steeve Doizi, Olivier Traxer
During the last decades, the surgical management of kidney stones benefited of many technological advances and one of them is the development of flexible ureteroscopy (fURS). This tool, ancillary equipment such as graspers and baskets, and lithotripsy technique with Holmium:YAG laser underwent many improvements leading to a widening of its indications with diagnostic and therapeutic management of upper urinary tract pathologies such as urolithiasis and urothelial tumors. The objective of this review is to describe the surgical technique for fURS as well as tips and tricks for the treatment of renal stones...
December 8, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29218393/-microperc-micropercutaneous-nephrolithotomy-a-review-of-the-literature
#7
REVIEW
Arvind P Ganpule, Jaspreet Chabra, Mahesh R Desai
Recent years have seen innovations in working armamentarium of percutaneous nephrolithotomy (PCNL) leading to development of novel modifications such as miniperc, ultra miniperc, and microperc. Amongst these microperc appears to be least invasive and various authors, off late, have reported their experience with the technique. Literature on microperc was reviewed by a MEDLINE/PubMed search with articles in the English language since 2011 in published peer-reviewed journals. Articles comprised of case series, comparative, and noncomparative studies...
December 7, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29204905/intracorporeal-lithotripsy
#8
REVIEW
Peter Alken
Since the introduction of ESWL, PNL and URS during the early 1980s the application rate of ESWL has declined while those of PNL and URS have increased. This is mainly due to the facts that instruments and techniques for Intracorporeal Lithotripsy (IL) have made a continuous progress. This review shows that today an array of options for IL within the entire urinary tract is available to treat stones in a perfect minimal invasive way. At the same time further improvements of IL are already visible.
December 4, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29189886/antiurolithiatic-effect-of-the-taraxasterol-on-ethylene-glycol-induced-kidney-calculi-in-male-rats
#9
Mahboubeh Yousefi Ghale-Salimi, Maryam Eidi, Nasser Ghaemi, Ramezan Ali Khavari-Nejad
Taraxasterol is one of the important constituents of Taraxacum officinale L. (Compositae) with antioxidant potential. The present study was designed to evaluate and compare the antiurolithiatic effects of taraxasterol and potassium citrate in the ethylene glycol induced urolithiatic rat. Urolithiasis was induced by ammonium chloride and ethylene glycol in adult male rats. Taraxasterol (2, 4 and 8 mg/kg) and potassium citrate (2.5 g/kg) were treated for 33 days by gavage. Then, the animals were anesthetized and weighted and blood, urine, liver and kidney sampling were done...
November 30, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29189885/invited-review-the-tale-of-ecirs-endoscopic-combined-intrarenal-surgery-in-the-galdakao-modified-supine-valdivia-position
#10
REVIEW
Cesare Marco Scoffone, Cecilia Maria Cracco
Modern-day percutaneous nephrolithotomy (PNL) has undergone considerable evolution, mainly driven by the improvement in access techniques, endoscopic instrumentation technology, lithotripsy devices and drainage management. The introduction of the supine and supine-modified positions is also part of this evolution, enabling comfortable and safe procedures from an anaesthesiological point of view, and an easy combined retrograde surgery [Endoscopic Combined IntraRenal Surgery (ECIRS)], allowing tailoring of the procedure on the patient, the dynamic anatomy of the collecting system and the urolithiasis...
November 30, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29188308/ureteroscopy-from-the-recent-past-to-the-near-future
#11
REVIEW
José Manuel Reis Santos
Stone surgery is one of oldest surgical practices undertaken by man. Hippocrates refused to let his followers "cut for the stone" and it was only in February 1980, when the first human trial of shock wave therapy on a renal stone was performed with success that a new era in minimally invasive treatment (surgery) for stones was opened up and this condemnation was finally resolved in the Hippocratic Oath. Endoscopy, using natural orifices, supported by anaesthesia, incremented by technology and with access to all points along the urinary tract, began by competing with ESWL, but is now the treatment of choice in most cases...
November 29, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29177561/how-can-and-should-we-optimize-extracorporeal-shockwave-lithotripsy
#12
REVIEW
Christian G Chaussy, Hans-Göran Tiselius
It is well recognized that the popularity of extracorporeal shock wave lithotripsy (SWL), despite its non-invasive character, has decreased during recent years. This is partly explained by the technological achievements in endoscopy and urologists' enthusiasm for such procedures. Another explanation is that many urologists have been insufficiently successful with SWL. The latter effect might to some extent be a result of the performance of the lithotripter used, but in too many cases, it is evident that the principles of how shock wave lithotripsy should be carried out are poorly applied...
November 25, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29170856/robot-assisted-flexible-ureteroscopy-an-update
#13
REVIEW
Jens Rassweiler, Marcel Fiedler, Nikos Charalampogiannis, Ahmet Sinan Kabakci, Remzi Saglam, Jan-Thorsten Klein
The role of flexible ureteroscopy (FURS) in the management of nephrolithiasis has increased due to the improved armamentarium. However, FURS still represents a challenging technique limiting its diffusion. Similar to previous experiences in laparoscopy, recently developed robotic devices may significantly compensate for the ergonomic deficiencies of FURS. Based on a short description of the history of robotic devices for laparoscopy, this article summarizes all current developments of robotic FURS. In 2008, robotic FURS was first reported using the Sensei-Magellan system designed for interventional cardiology...
November 23, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29170855/laparoscopic-and-robotic-surgery-for-stone-disease
#14
REVIEW
Renato N Pedro, Noor Buchholz
Treatment for stone disease has evolved drastically during the past 3-4 decades. Ureteroscopy, percutaneous nephrolithotomy along with SWL, provides the means to treat practically all urinary tract stones with minimal invasion to the patients. However, for complex stone case scenarios where open surgery is being considered, a less invasive and better tolerated option such as laparoscopy (robot assisted or not) can be performed. The present manuscript reviews role of laparoscopic and robotic surgery in treating urinary tract stones...
November 23, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29164304/preface-breaking-the-stone
#15
REVIEW
Noor Buchholz
No abstract text is available yet for this article.
November 21, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29164303/percutaneous-nephrolithotomy-position-position-position
#16
REVIEW
Zhijian Zhao, Junhong Fan, Yang Liu, Jean de la Rosette, Guohua Zeng
Percutaneous nephrolithotomy (PCNL) is the regular surgery for treating large or complex renal stones. Since its first inception, many variations have come in the approach including the modifications of patient position. The prone position is traditionally used, and subsequently, variations in prone and supine technique have been proposed and assessed over time. In an attempt to provide comprehensive information about the strategy applications of patient's position, the present review describes the position-related general basis, and provides a literature review of the pros and cons of various positions from a surgical and anaesthetic point of view...
November 21, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29151118/semi-rigid-ureteroscopy-indications-tips-and-tricks
#17
REVIEW
Lily A Whitehurst, Bhaskar K Somani
Advances in ureteroscopic technology, alongside broadening treatment options have fuelled the rapid expansion of endourology. Semi-rigid ureteroscopy is a well-known procedure used globally for varying urological conditions, with high success rates. This article aims to provide 'tips and tricks' for the semi-rigid ureteroscopy procedure, and the management of commonly encountered pathology such as renal stones, ureteric strictures, and urothelial tumours.
November 18, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29151117/risks-of-flexible-ureterorenoscopy-pathophysiology-and-prevention
#18
REVIEW
Palle J S Osther
Currently, indications for flexible ureterorenoscopy (fURS) are expanding, mainly due to technological advancements. Although data from clinical series definitely presents fURS as a safe procedure, serious complications including sepsis and ureteral lesions do occur. These complications seem to be a result of the unique elements of fURS, ureteral access and irrigation, pushing normal upper urinary tract physiology into pathophysiological processes, including intrarenal/pyelo-veneous backflow and ureteral contractions, potentially resulting in septic, haemorrhagic and ureteral lesional complications...
November 18, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29151116/do-alpha-1-antagonist-medications-affect-the-success-of-semi-rigid-ureteroscopy-a-prospective-randomised-single-blind-multicentric-study
#19
Mustafa Aydın, Muhammet Fatih Kılınç, Abdulmecit Yavuz, Göksel Bayar
The objective of this study is to assess the efficacy of adjunctive silodosin therapy in improving the success rate of semi-rigid ureteroscopy for removing ureteral stones. Prospective randomised controlled clinical trial performed between July 2016 and September 2016. All the patients underwent ureteroscopic holmium lithotripsy with a YAG laser. The patients were randomised into one of three groups: those who did not use an alpha-1 blocker (AB) (Group 1, n = 50), those who used an AB for one day (Group 2, n = 50), and those who used an AB for three days (Group 3, n = 47)...
November 18, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29149365/percutaneous-nephrolithotomy-complications-and-how-to-deal-with-them
#20
REVIEW
Daniel A Wollin, Glenn M Preminger
Percutaneous nephrolithotomy is a common surgical treatment for large and complex stones within the intrarenal collecting system. A wide variety of complications can result from this procedure, including bleeding, injury to surrounding structures, infection, positioning-related injuries, thromboembolic disease, and even death. Knowledge of the different types of complications can be useful in order to prevent, diagnose, and treat these problems if they occur. This review describes the diversity of complications with the goal of improving their avoidance and treatment...
November 17, 2017: Urolithiasis
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