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urinary calculi

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https://www.readbyqxmd.com/read/29450733/miniaturised-percutaneous-nephrolithotomy-versus-flexible-ureteropyeloscopy-a-systematic-review-and-meta-analysis-comparing-clinical-efficacy-and-safety-profile
#1
REVIEW
N F Davis, M R Quinlan, C Poyet, N Lawrentschuk, D M Bolton, D Webb, G S Jack
PURPOSE: This study aims to comparatively evaluate clinical outcomes of mini-PCNL and FURS for treating urinary tract calculi in a single session. METHODS: A systematic search using electronic databases was performed for studies comparing mini-PCNL and FURS for the treatment of urinary tract calculi. The primary outcome measurements were stone-free rates (SFRs) and complication rates for both techniques. Secondary outcome measurements were to compare patient demographics, operative duration, and inpatient stay...
February 16, 2018: World Journal of Urology
https://www.readbyqxmd.com/read/29434761/the-value-of-x-ray-digital-tomosynthesis-in-the-diagnosis-of-urinary-calculi
#2
Shifeng Liu, Hong Wang, Weihua Feng, Xiaokun Hu, Jian Guo, Qingjun Shang, Zixiang Li, Hongsheng Yu
Urinary calculus is a common and recurrent condition that affects kidney function. The present study evaluated the use of digital tomosynthesis (DTS) and Kidneys-Ureters-Bladder (KUB) radiography as methods of diagnosing urinary calculi. Unenhanced multidetector computed tomography (UMDCT) was used in the diagnosis of calculi. KUB radiography and DTS procedures were conducted on patients prior to and following bowel preparation to detect kidney, ureteral and bladder calculi. Differences in diagnostic performance of KUB radiography and DTS imaging on prepared and unprepared bowel were evaluated using the χ2 test...
February 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29421773/study-of-urine-composition-of-patients-with-recurrent-nephrolithiasis-in-lorestan-iran
#3
Babak Hadian, Azita Zafar-Mohtashami, Fershteh Ghorbani
INTRODUCTION: Nephrolithiasis is one of the most common urinary tract diseases. After the first episode of urinary calculus, the risk of recurrence is nearly 40% to 50% at 5 years. Nephrolithiasis is a systemic disease that is associated with some metabolic disorders. This study aimed to provide a picture of the frequency of metabolic abnormalities in patients with nephrolithiasis from west part of Iran. MATERIALS AND METHODS: Patients with recurrent urinary tract calculi referred to the Nephrology-Urology Clinics in Khorramabad city were recruited...
January 2018: Iranian Journal of Kidney Diseases
https://www.readbyqxmd.com/read/29406799/management-of-pediatric-urolithiasis-using-a-combination-of-laparoscopic-lithotomy-and-pyeloscopy
#4
Sergio Landa-Juárez, Bárbara M Rivera-Pereira, Ana M Castillo-Fernández
BACKGROUND: Minimally invasive procedures have become the standard option for treatment of urinary stones; the use of more invasive techniques is not a common practice currently. This emergent technology is not always available and laparoscopy is the alternative option. There are few reports of laparoscopic management for urinary lithiasis in pediatric patients. This study is about the use of laparoscopic surgery combined with pyeloscopy as a feasible first-line treatment for pediatric urolithiasis in renal and proximal ureteral locations...
February 6, 2018: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/29392338/recurrence-rates-of-urinary-calculi-according-to-stone-composition-and-morphology
#5
Michel Daudon, Paul Jungers, Dominique Bazin, James C Williams
Few studies have examined the relative risk of recurrence of different stone types. The object of the present study was to evaluate the tendency for stone recurrence as a function of major mineral composition of the stones and morphological characteristics of the stones. This study was carried out using 38,274 stones for which we had data available to specify if the stone was from the first or a subsequent urinary stone episode. Stones were analyzed for morphology by stereomicroscope and for composition by infrared spectroscopy...
February 1, 2018: Urolithiasis
https://www.readbyqxmd.com/read/29391357/prostatic-abscess-a-rare-complication-of-staghorn-calculi
#6
Mohammed Kamil Quraishi, Yih Chyn Phan, Wael Asaad, Naing Lynn
A staghorn calculus is a calculus accommodating the majority of a renal calyx extending into the renal pelvis. A conservative approach to its treatment may lead to high morbidity and mortality rates. Such morbidity usually manifests with renal failure, obstructed upper urinary tractand/or life-threatening sepsis. Prostatic abscesses have never been associated with staghorn calculi in the literature. We report a case of a 70-year-old man who presented with sepsis, which was found to originate from a complex prostatic abscess...
February 1, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29390332/spontaneous-rupture-of-the-renal-pelvis-caused-by-upper-urinary-tract-obstruction-a-case-report-and-review-of-the-literature
#7
REVIEW
Huaming Zhang, Guimin Zhuang, Dongchong Sun, Tianxing Deng, Jiawei Zhang
RATIONALE: Spontaneous renal rupture is rupture of the renal parenchyma, collecting system, or renal blood vessel, which often occurs in pathological kidney and is clinically less common. Postoperative long-term renal rupture is rarely reported in flexible ureteroscopy treatment of calculus in the upper urinary tract. PATIENT CONCERNS: A 58-year-old man complained of right lower abdominal pain with hematuria for 3 hours after flexible ureteroscopy, combined with holmium laser lithotripsy of right renal calculi was performed 1 month ago...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29375692/management-of-upper-urinary-tract-calculi-in-crossed-fused-renal-ectopic-anomaly
#8
Liang Huang, Yong Lin, Zhengyan Tang, Dongjie Lie, Zhao Wang, Hequn Chen, Guilin Wang
The aim of the present study was to summarize the management of upper urinary tract calculi in crossed fused renal ectopia (CFRE). Two patients were retrospectively studied in Xiangya Hospital (Changsha, China) and all relevant literature published in English between 1996 and 2016 was reviewed. All patients, including those reported in the literature, were characterized by age, sex, manifestation, therapy history, ectopic side, stone location, surgery and outcome. The patients had a mean age of 42.3±18.5 years, a male: Female ratio of 5:4 and the ratio of renal ectopic side was 9:8 (left:right)...
January 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29374814/risk-of-renal-stone-formation-in-patients-treated-with-luteinising-hormone-releasing-hormone-analogues-for-prostate-cancer-importance-of-bone-metabolism-and-urine-calcium
#9
Enrique Diaz-Convalia, Miguel Angel Arrabal-Polo, Maria Del Carmen Cano-Garcia, Alejandro Dominguez-Amillo, Nelson Canales-Casco, Miguel Arrabal-Martin
PURPOSE: To determine whether androgen blockade produces metabolic changes in urine and increases the risk of calculi after 1 year of treatment. MATERIALS AND METHODS: The study included 38 patients, from the period April 2015 to June 2016, diagnosed with locally advanced prostate cancer or lymph node metastasis, and with an indication of androgen blockade. Androgen blockade was started with luteinising hormone-releasing hormone (LHRH) analogues, and a blood specimen, a fasting urine and 24-h urine were collected at the time of inclusion, and then at 1 year of follow-up...
January 27, 2018: International Urology and Nephrology
https://www.readbyqxmd.com/read/29325926/the-study-of-the-inhibitory-effect-of-calcium-oxalate-monohydrate-s-crystallization-by-two-medicinal-and-aromatic-plants-ammi-visnaga-and-punica-granatum
#10
R Kachkoul, T Sqalli Houssaini, Y Miyah, M Mohim, R El Habbani, A Lahrichi
INTRODUCTION: Urinary lithiasis is a recurrent disease defined by the presence of calculi in the urinary tract. Most urinary calculi have as a major component calcium oxalate which occurs mainly in two crystalline forms: Calcium oxalate monohydrate (whewellite) and calcium oxalate dihydrate (weddellite). The target behind, this work is to study the inhibiting effect of the calcium oxalate's crystallization by the extract of the Ammi visnaga and the Punica granatum. METHODS: The inhibition of crystallization has been studied in vitro with both the absence and the presence of the different concentrations of the extracts of the two plants...
January 8, 2018: Progrès en Urologie
https://www.readbyqxmd.com/read/29319486/evaluating-factors-that-dictate-struvite-stone-composition-a-multi-institutional-clinical-experience-from-the-edge-research-consortium
#11
Ryan Kendrick Flannigan, Andrew Battison, Shubha De, Mitchell R Humphreys, Markus Bader, Ekaterina Lellig, Manoj Monga, Ben H Chew, Dirk Lange
INTRODUCTION: Struvite stones account for 15% of urinary calculi and are typically associated with urease-producing urinary tract infections and carry significant morbidity. This study aims to characterize struvite stones based on purity of stone composition, bacterial speciation, risk factors, and clinical features. METHODS: Retrospective data was collected from patients diagnosed with infection stones between 2008 and 2012. Stone analysis, perioperative urine cultures, bacterial speciation, and clinical data were collected and analyzed...
December 22, 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/29305942/a-delayed-appearance-of-the-secondary-bladder-stone-10-years-after-tension-free-vaginal-tape-procedure
#12
Hao-Wei Chen, Yu-Chen Chen, Yii-Her Chou
Bladder calculi occur in female is uncommon and the evaluation of bladder stone in women with any history of previous pelvic surgery demands careful attention. Bladder erosion due to previous anti-incontinence surgery formed the nidus for stone formation, and often presented as recurrent cystitis or refractory urinary incontinence since the early postoperative period. We hereby reported a rarely delayed appearance of the symptomatic iatrogenic bladder stone occurred 10 years after previous tension-free vaginal tape procedure...
January 3, 2018: Urology
https://www.readbyqxmd.com/read/29305631/the-risk-of-bladder-cancer-in-patients-with-urinary-calculi-a-meta-analysis
#13
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/29291417/performance-of-qsofa-and-sofa-for-predicting-mortality-in-patients-with-acute-pyelonephritis-associated-with-upper-urinary-tract-calculi
#14
Hiroshi Fukushima, Masaki Kobayashi, Keizo Kawano, Shinji Morimoto
PURPOSE: The Sepsis-3 Task Force proposed a new definition of sepsis based on SOFA and introduced a novel scoring system, qSOFA, for screening high-risk patients for sepsis. Their clinical usefulness, however, is unclear. Therefore, we investigated their predictive performance for mortality in APN-UTC patients. MATERIALS AND METHODS: This retrospective study included 141 consecutive patients clinically diagnosed with APN-UTC outside the ICU. We evaluated the performance of qSOFA, SOFA, and SIRS in predicting in-hospital mortality and ICU admission using the AUC of the ROC curve, NRI, IDI, and decision curve analysis...
December 29, 2017: Journal of Urology
https://www.readbyqxmd.com/read/29277882/mesalazine-a-novel-etiology-for-drug-induced-urinary-calculi
#15
Blaise Corbery, Souhil Lebdai, Shahed Borojeni, Pierre Bigot, Abdel-Rahmène Azzouzi, Thibaut Culty
We report the case of a 23-year-old woman treated by mesalazine for ulcerative colitis and who subsequently presented recurrent renal colic due to mesalazine urinary stones. This is the second case described in the literature.Mesalazine stones are soft, friable and have an orange-beige color. They are not visible on non-contrast computed tomography (CT). Their diagnosis is based on morpho-constitutional analysis and CT-urography. Patients treatedby mesalazine who present renal colic should undergo CT-urography in order to make the diagnosis...
December 26, 2017: Urology Journal
https://www.readbyqxmd.com/read/29249235/kidney-stone-composition-in-the-kingdom-of-saudi-arabia
#16
Abdulrazack Amir, Brian R Matlaga, Justin B Ziemba, Salwa Sheikh
INTRODUCTION: Urolithiasis is a globally-distributed disease; however, its prevalence varies across countries and regions. Countries in the Middle East have been reported to have particularly high nephrolithiasis prevalence rates. To date, however, we have an incomplete understanding of the composition of stones seen in this region. Therefore, we performed a study to characterize stone composition over a 14-year period in the Eastern Province of the Kingdom of Saudi Arabia (KSA). MATERIALS AND METHODS: A retrospective review of all adult patients who had the composition of their upper urinary tract calculi analyzed at Johns Hopkins Aramco Healthcare (JHAH) between 1999 and 2013 was performed...
December 18, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/29227142/perineal-urethrostomy-to-treat-obstructive-urolithiasis-in-a-captive-hand-raised-steenbok-i-raphicerus-campestris-i
#17
Luke A Poore, Ross Hendry, Johan Steyl, Silke Pfitzer
The steenbok (Raphicerus campestris) is a small antelope of the family Bovidae native to the African continent. Urolithiasis, the formation of urinary calculi in the urinary tract, can be caused by a variety of factors such as diet, dehydration, infection and anatomical predisposition. Urolithiasis, with uroliths identified as magnesium calcium phosphate carbonate in composition, was diagnosed in a hand-reared 5-month-old steenbok. Perineal urethrostomy was performed as a component of the broad treatment regime that included fluid therapy, antibiotic and anti-inflammatory treatment...
December 8, 2017: Journal of the South African Veterinary Association
https://www.readbyqxmd.com/read/29201177/diagnostic-value-of-64-slice-spiral-computed-tomography-imaging-of-the-urinary-tract-during-the-excretory-phase-for-urinary-tract-obstruction
#18
De-Li Zhao, Guang-Sheng Jia, Peng Chen, Xin-Ding Liu, Sheng-Jie Shu, Zai-Sheng Ling, Ting-Ting Fan, Xiu-Fen Shen, Jin-Ling Zhang
The present study aimed to assess the diagnostic value of 64-slice spiral computed tomography (CT) imaging of the urinary tract during the excretory phase for urinary tract obstruction. CT imaging of the urinary tract during the excretory phase was performed in 46 patients that had been diagnosed with urinary tract obstruction by B-mode ultrasound imaging or clinical manifestations. It was demonstrated that out of the 46 patients, 18 had pelvic and ureteral calculi, 12 cases had congenital malformations, 3 had ureteral stricture caused by urinary tract infection and 13 cases had malignant tumors of the urinary tract...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29195830/retrograde-intrarenal-surgery-using-ureteral-access-sheaths-is-a-safe-and-effective-treatment-for-renal-stones-in-children-weighing-20%C3%A2-kg
#19
Alfredo Berrettini, Luca Boeri, Emanuele Montanari, Mirella Mogiatti, Pietro Acquati, Elisa De Lorenzis, Andrea Gallioli, Erika Adalgisa De Marco, Dario Guido Minoli, Gianantonio Manzoni
INTRODUCTION: Surgical treatment of pediatric kidney stones has changed dramatically in recent years because of the miniaturization of surgical instruments and the availability of intracorporeal lithotripters. The retrograde intrarenal surgery (RIRS) technique is nowadays considered an effective and safe procedure but studies in very young children are lacking and use of a ureteral access sheath (UAS) has also been debated. OBJECTIVE: To assess safety and efficacy of RIRS using UAS in children weighing < 20 kg...
November 11, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29190598/evaluation-and-management-of-kidney-calculi
#20
Arash Shadman, Bahar Bastani
INTRODUCTION: The recent change in the view towards nephrolithiasis from a benign isolated disease to a disorder associated with numerous systemic and chronic conditions has added to the importance of a more thorough and timely diagnostic and therapeutic intervention. MATERIALS AND METHODS: Both original and review articles found via the PubMed search on recent evaluation and management strategies of urinary calculi were reviewed. These resources were integrated with the authors' knowledge of the field...
November 2017: Iranian Journal of Kidney Diseases
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