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https://www.readbyqxmd.com/read/29145832/upper-urinary-tract-stone-disease-in-patients-with-poor-performance-status-active-stone-removal-or-conservative-management
#1
Shimpei Yamashita, Yasuo Kohjimoto, Yasuo Hirabayashi, Takashi Iguchi, Akinori Iba, Masatoshi Higuchi, Hiroyuki Koike, Takahito Wakamiya, Satoshi Nishizawa, Isao Hara
BACKGROUND: It remains controversial as to whether active stone removal should be performed in patients with poor performance status because of their short life expectancy and perioperative risks. Our objectives were to evaluate treatment outcomes of active stone removal in patients with poor performance status and to compare life prognosis with those managed conservatively. METHODS: We retrospectively reviewed 74 patients with Eastern Cooperative Oncology Group performance status 3 or 4 treated for upper urinary tract calculi at our four hospitals between January 2009 and March 2016...
November 16, 2017: BMC Urology
https://www.readbyqxmd.com/read/29136679/current-trends-and-pitfalls-in-endoscopic-treatment-of-urolithiasis
#2
REVIEW
Takaaki Inoue, Shinsuke Okada, Shuzo Hamamoto, Takashi Yoshida, Tadashi Matsuda
Current development of endoscopic technology, lithotripters, and stone-retrieval devices has expanded the indications for retrograde and antegrade endoscopic therapy in the management of urolithiasis. This technology has also resulted in minimally invasive therapy. As surgeons' experience of endourological procedures with the newer instruments has become integrated, the surgical technique and indications for urolithiasis have also changed in the past few years. The present review provides an overview of endourological procedures for upper urinary tract stones and the key points related to surgical techniques...
November 14, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/29135160/-the-role-of-urinary-tract-infection-in-the-development-of-recurrent-nephrolithiasis
#3
K R Khamidullin, A M Pushkarev, A I Tarasenko, V N Pavlov
This is a literature review on the role of microbial flora in the development of recurrent urolithiasis. The authors outline pathogenetic aspects of recurrent stone formation associated bacterial flora. A number of studies reported that standard urine culture has limited sensitivity in detecting urinary tract infection.
October 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/29130676/-the-feasibility-of-ct-attenuation-value-to-predict-the-composition-of-upper-urinary-calculi-and-success-rate-of-extracorporeal-shock-wave-lithotripsy
#4
Yu Fan, Zhen-Hua Liu, Qiang Wei, Zhuang Tang, Liang-Ren Liu, Bi-Hua Ren, Xiang Li, Yi-Ge Bao, Lu Yang
OBJECTIVE: To explore the feasibility of CT attenuation value (CTvalue) to predict the composition of upper urinary calculi and the number of shock waves (NSW) and success rate (SR) of extracorporeal shock wave lithotripsy (ESWL). METHODS: A total of 146 patients with upper urinary calculi treated by ESWL were included. CT scan was performed before ESWL. Upper urinary calculi with the maximum diameters of less than or equal to 2 cm were included. Infrared spectroscopy was used to analyze the composition of calculi...
September 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/29130347/editorial-comment-on-end-2017-0641-ra-r1
#5
Joel Gustavo Gómez-Núñez
The manuscript by Matlaga et al titled "Ureteroscopic Laser Lithotripsy: A Review of Dusting Versus Fragmentation With Extraction" was first intended for a meta-analysis publication, but because limited data published, it became an interesting review article focused in the current debate about which of the so described laser urinary lithotripsy "Fragmentation with Extraction" and "Dusting" techniques is better. Authors do an effort to homologize terminology and nomenclature and list the most efficient energy settings used in clinical scenario on the "Fragmentation with Extraction" [(Frequency 12-15 Hz (< 30 watt laser) >50Hz (100/120 watt laser) / Energy 0...
November 12, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/29125974/investigations-of-trace-and-toxic-elements-of-kidney-stones-from-two-different-sudanese-areas-by-%C3%A2%C2%B5-pixe-using-nuclear-microprobe-nmp
#6
REVIEW
M E M Eisa, C A Pineda-Vargas, Sami E E Salah, A L Rodgers
In this study 14 kidney stones (oxalate and phosphate stones) collected from two Sudanese hospitals Particle Induced X ray Emission (µ-PIXE). This technique was used to investigate the matrix as well as the trace element compositions of kidney stones on a microscopic scale using 1.5MeV proton energy. Significant differences in elements content across the groups were found by applying statistical methods. Trace elements such as P,Ca, Fe, Ni, Cu, Zn, Se, Sr, Br, and Pb showed a possible linear relationship of the mean profile for trace elements for each group of stones...
October 18, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/29124877/sporadic-primary-hyperparathyroidism-and-stone-disease-a-comprehensive-metabolic-evaluation-before-and-after-parathyroidectomy
#7
Giovanni S Marchini, Kauy V M Faria, Fábio C M Torricelli, Manoj Monga, Miguel Srougi, William C Nahas, Eduardo Mazzucchi
OBJECTIVES: to characterize the stone risk and the impact of parathyroidectomy on the metabolic profile of patients with primary hyperparathyroidism (PHPT) and urolithiasis. SUBJECTS AND METHODS: We analyzed the prospectively collected charts of patients treated at our stone clinic from Jan/2001-Jan/2016 searching for patients with PHPT and urolithiasis. Imaging evaluation of the kidneys, bones and parathyroid glands were assessed. We analyzed the demographic data, serum and urinary parameters before and after parathyroidectomy...
November 10, 2017: BJU International
https://www.readbyqxmd.com/read/29117629/medical-and-dietary-interventions-for-preventing-recurrent-urinary-stones-in-children
#8
REVIEW
Adam Kern, Gwen Grimsby, Helen Mayo, Linda A Baker
BACKGROUND: Nephrolithiasis, or urinary stone disease, in children causes significant morbidity, and is increasing in prevalence in the North American population. Therefore, medical and dietary interventions (MDI) for recurrent urinary stones in children are poised to gain increasing importance in the clinical armamentarium. OBJECTIVES: To assess the effects of medical and dietary interventions (MDI) for the prevention of idiopathic urinary stones in children aged from one to 18 years...
November 9, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29110180/correlation-between-the-molecular-effects-of-mutations-at-the-dimer-interface-of-alanine-glyoxylate-aminotransferase-leading-to-primary-hyperoxaluria-type-i-and-the-cellular-response-to-vitamin-b6
#9
Mirco Dindo, Elisa Oppici, Daniele Dell'Orco, Rosa Montone, Barbara Cellini
Primary hyperoxaluria type I (PH1) is a rare disease caused by the deficit of liver alanine-glyoxylate aminotransferase (AGT). AGT prevents oxalate formation by converting peroxisomal glyoxylate to glycine. When the enzyme is deficient, progressive calcium oxalate stones deposit first in the urinary tract and then at the systemic level. Pyridoxal 5'-phosphate (PLP), the AGT coenzyme, exerts a chaperone role by promoting dimerization, as demonstrated by studies at protein and cellular level. Thus, variants showing a destabilized dimeric structure should, in principle, be responsive to vitamin B6, a precursor of PLP...
November 6, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/29107431/office-stent-placement-under-local-anesthesia-is-a-safe-and-efficient-procedure-for-the-management-of-multiple-ureteral-disorders
#10
A Carrion, M D'Anna, M Costa-Grau, P Luque, E García-Cruz, A Franco, A Alcaraz
OBJECTIVE: To assess the outcomes of ureteral stent placement under local anesthesia for the management of multiple ureteral disorders. METHODS: Retrospective study of 45 consecutive ureteral stents placed under local anesthesia from January 2015 to July 2016. Inclusion criteria were hemodynamically stable patients with urinary obstruction, urinary fistula or for prophylactic ureteral localization during surgery. Five minutes before the procedure, 10ml of lidocaine gel and 50ml of lidocaine solution were instilled in the bladder...
October 26, 2017: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/29101758/bilateral-laparoscopic-stone-surgery-for-renal-stones-a-case-series
#11
Akbar Nouralizadeh, Amir H Kashi, Reza Valipour, Mahmood Reza Nasiri Kopaee, Mahdi Zeinali, Reza Sarhangnejad
PURPOSE: To present our experience with synchronous or metachronous laparoscopic pyelolithotomy and ureterolithotomy for patients with bilateral urolithiasis. MATERIALS AND METHODS: The data of all patients who underwent laparoscopic pyelolithotomy (± ureterolithotomy) for bilateral renal and/or ureteral stones from November 2009 to July 2014 were included. Laparoscopic operations were performed through a transperitoneal approach. RESULTS: 10 patients underwent laparoscopic operations for renal stones (19 kidney stones) and ureteral stones (1 ureteral stone)...
November 4, 2017: Urology Journal
https://www.readbyqxmd.com/read/29101428/composition-of-urinary-calculi-in-infants-a-report-from-an-endemic-country
#12
Mirza Naqi Zafar, Salma Ayub, Hafsa Tanwri, Syed Ali Anwar Naqvi, Syed Adibul Hasan Rizvi
Pediatric urolithiasis remains endemic in low-resource countries where infants constitute 17-40% of all children with urolithiasis. This study reports socio-economic factors, medical history and chemical composition of urinary stones in 976 infants of up to 2 years of age. Between 1992 and 2016, 976 infants presented to our institute with 1038 stones. Chemical composition of stones was analyzed by Fourier transformation infrared spectroscopy (FTIR). The mean age of infants was 19.5 ± 5.74 months with a M:F ratio of 5...
November 3, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29098196/perirenal-abscess-after-partial-nephrectomy-because-of-migration-of-upper-calix-stone-and-urine-leakage-a-case-report
#13
Sheng-Chun Hung, Li-Wen Chang, Cheng-Kuang Yang
Background: Nephron-sparing surgery has been shown to achieve oncological results equivalent to those of radical nephrectomy in patients with compromised renal function who have renal tumors <4 cm. However, technical difficulties and potential surgical complications remain challenges to the surgeon. Various factors, such as tumor size and location, collecting system invasion, and patient's expectations, are major concerns that may affect the feasibility of performing an effective partial nephrectomy. We report a patient with renal cell carcinoma who underwent open partial nephrectomy and suffered from complications of perirenal abscess because of stone migration, obstruction, and subsequence urine leakage...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/29095693/reference-intervals-for-stone-risk-factors-in-24-h-urine-among-healthy-adults-of-the-han-population-in-china
#14
Zanlin Mai, Xiaoxia Li, Zelin Cui, Wenqi Wu, Yongda Liu, Lili Ou, Yueping Liang, Zhijian Zhao, Yang Liu, Xing Mai, Wei Zhu, Tao Zhang, Chao Cai, Houmeng Yang, Guohua Zeng
BACKGROUND: The aim of the study was to establish reference intervals for 24-h urinary stone risk factors in the healthy Chinese Han population. METHODS: From May 2013 to July 2014, we collected and analyzed 24-h urine samples from healthy adult Han population during a cross-sectional study across China. The protocol for analysis of 24-h urine included volume, pH, oxalate, citrate, sodium, potassium, chloride, calcium, phosphorous, creatinine, urate, magnesium, the ion activity products of calcium oxalate (AP(CaOx) indexs) and calcium phosphate (AP(CaP) indexs)...
November 2, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/29090382/determinants-of-calcium-and-oxalate-excretion-in-subjects-with-calcium-nephrolithiasis-the-role-of-metabolic-syndrome-traits
#15
Andrea Ticinesi, Angela Guerra, Franca Allegri, Antonio Nouvenne, Gianfranco Cervellin, Marcello Maggio, Fulvio Lauretani, Loris Borghi, Tiziana Meschi
BACKGROUND: The association of metabolic syndrome (MetS) traits with urinary calcium (UCE) or oxalate excretion (UOE) is uncertain in calcium stone formers (CSFs). Our aim was to investigate this association in a large group of Caucasian CSFs. METHODS: We retrospectively reviewed data of CSFs evaluated at our Kidney Stone Clinic from 1984 to 2015. Data on body mass index (BMI), MetS traits defined according to international consensus, family history of urolithiasis, anti-hypertensive treatments, calcemia, renal function, and 24-h urinary profile of lithogenic risk were collected...
October 31, 2017: Journal of Nephrology
https://www.readbyqxmd.com/read/29089544/a-network-meta-analysis-on-the-beneficial-effect-of-medical-expulsive-therapy-after-extracorporeal-shock-wave-lithotripsy
#16
Tong-Xin Yang, Bang-Hua Liao, Yun-Tian Chen, Hong Li, Qing He, Qin-Yu Liu, Kun-Jie Wang
We applied a newly introduced method, network meta-analysis, to re-evaluate the expulsion effect of drugs including tamsulosin, doxazosin, nifedipine, terazosin and rowatinex after extracorporeal shock wave lithotripsy (ESWL) as described in the literature. A systematic search was performed in Medline, Embase and Cochrane Library for articles published before March 2016. Twenty-six studies with 2775 patients were included. The primary outcome was the number of patients with successful stone expulsion. The data were subdivided into three groups according to duration of follow-up...
October 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29082325/endoscopic-treatment-of-intrauterine-device-migration-into-the-bladder-with-stone-formation
#17
Masayuki Sano, Kaoru Nemoto, Takafumi Miura, Yasutomo Suzuki
Background: An intrauterine device is commonly used for contraception globally. Although intrauterine device placement is an effective and safe method of contraception, migration into the bladder with stone formation is a rare and serious complication. The management approaches for an intrauterine device embedded in the bladder include endoscopic procedures and open surgical removal. In this study, we report the case of a patient with recurrent urinary tract infection associated with intrauterine device migration and urolithiasis, who successfully underwent endoscopic treatment combined with laser fragmentation...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/29075296/xanthogranulomatous-pyelonephritis-with-incomplete-double-ureter
#18
Yutaro Hayashi, Takashi Kawahara, Yusuke Hattori, Kota Shimokihara, Sohgo Tsutsumi, Daiji Takamoto, Taku Mochizuki, Jun-Ichi Teranishi, Yasushi Yumura, Yasuhide Miyoshi, Masako Otani, Hiroji Uemura
INTRODUCTION: Xanthogranulomatous pyelonephritis (XGP) is a type of chronic renal inflammation that usually occurs in immunocompromised middle-aged women with chronic urinary tract infection or ureteral obstruction induced by the formation of ureteral stones. XGP with an incomplete double ureter is extremely rare. CASE PRESENTATION: A 76-year-old woman was referred to our department to undergo further examination for a left renal tumor that was detected by ultrasonography...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/29067815/diagnostic-performance-of-advanced-modeled-iterative-reconstruction-applied-images-for-detecting-urinary-stones-on-submillisievert-low-dose-computed-tomography
#19
Ju Hee Ahn, Seung Ho Kim, Seung Jin Kim, In Chul Nam, Sung Jae Lee, Seong Yong Pak
Background Repeated computed tomography (CT) scans may be an issue in young adults with urinary stones. Therefore, it is important to know how far the dose can be reduced while maintaining the diagnostic performance. Purpose To generate a hypothesis that it is feasible to decrease the radiation dose to a sub-millisievert (mSv) level with the addition of advanced modeled iterative reconstruction (ADMIRE) while maintaining the sensitivity to standard-dose CT (SDCT) for the detection of urinary stones. Material and Methods Ninety-two consecutive patients with urinary stones underwent non-enhanced CT that consisted of standard (120 kVp, 200 mAs) and lose-dose (LDCT) (80 kVp, 60 mAs)...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/29061070/ureteroscopic-laser-lithotripsy-a-review-of-dusting-versus-fragmentation-with-extraction
#20
Brian R Matlaga, Ben H Chew, Brian Eisner, Mitchell R Humphreys, Bodo E Knudsen, Amy E Krambeck, Dirk Lange, Michael Eric Lipkin, Nicole L Miller, Manoj Monga, Vernon M Pais, Roger L Sur, Ojas Shah
INTRODUCTION: Ureteroscopic laser lithotripsy is becoming the most commonly utilized treatment for patients with urinary calculi. The Holmium:YAG laser is integral to the operation, and is the preferred flexible, intracorporeal lithotrite. In recent years, there has been increasing interest in examining the effect of varying the laser settings on the effectiveness of stone treatment. Herein, we review the two primary laser treatment approaches: dusting and fragmentation with extraction...
October 23, 2017: Journal of Endourology
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