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https://www.readbyqxmd.com/read/29333512/fourier-transform-infrared-spectroscopy-for-analysis-of-kidney-stones
#1
Aysha Habib Khan, Sheharbano Imran, Jamsheer Talati, Lena Jafri
Purpose: To compare the results of a chemical method of kidney stone analysis with the results of Fourier transform infrared (FT-IR) spectroscopy. Materials and Methods: Kidney stones collected between June and October 2015 were simultaneously analyzed by chemical and FT-IR methods. Results: Kidney stones (n=449) were collected from patients from 1 to 81 years old. Most stones were from adults, with only 11.5% from children (aged 3-16 years) and 1...
January 2018: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/29330993/chemical-composition-of-stones-in-paediatric-urolithiasis
#2
Kiran Imran, Mirza Naqi Zafar, Naureen Fatima, Uzma Ozair, Sajid Sultan, Syed Adibul Hasan Rizvi
BACKGROUND: Chemical composition of stones is one of the important diagnostic criteria for aetiology of stone formation and treatment to prevent recurrence. This paper reports composition of stones in children at a tertiary hospital by Fourier Transformation Infrared Spectroscopy (FTIR). METHODS: Between January-June 2015, 412 urinary stones from children were analysed by FTIR. Chi-square tests were used for the comparison of categorical measurements between groups...
October 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/29310177/re-low-bone-density-and-bisphosphonate-use-and-the-risk-of-kidney-stones
#3
Dean G Assimos
No abstract text is available yet for this article.
January 2018: Journal of Urology
https://www.readbyqxmd.com/read/29304995/meta-analysis-of-culprit-only-versus-multivessel-percutaneous-coronary-intervention-in-patients-with-st-segment-elevation-myocardial-infarction-and-multivessel-coronary-disease
#4
Sripal Bangalore, Bora Toklu, Gregg W Stone
Recently, several randomized controlled trials (RCT) in patients with ST-segment elevation myocardial infarction (STEMI) and multivessel disease (MVD) have compared a strategy of routine multivessel percutaneous coronary intervention (PCI) performed either as a single procedure or as staged procedures to culprit-only PCI. All of these trials have been underpowered for clinical end points. We searched PubMed, Embase, and Cochrane Central Register of Controlled Trials for RCT comparing multivessel PCI with culprit-only PCI in patients with STEMI and MVD...
December 12, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29299887/is-the-homocysteine-level-a-good-predictive-marker-for-evaluating-kidney-function-in-patients-after-percutaneous-nephrolithotomy
#5
Ismail Karlidag, Deniz Abat, Adem Altunkol, Volkan Izol, Erkan Demir, Ibrahim Atilla Aridogan
PURPOSE: The purpose of this study is to evaluate the preoperative, early and late postoperative homocysteine levels and its relationship with kidney function in patients after undergoing percutaneous nephrolithotomy (PNL). MATERIALS AND METHODS: Twenty-three patients with kidney stones underwent PNL and blood samples were taken preoperatively as well as at 48 hours and three months after the operation. The homocysteine level was determined by high pressure liquid chromatography and the fluorometric method in blood samples with ethylenediaminetetraaceticacid...
January 4, 2018: Urology Journal
https://www.readbyqxmd.com/read/29290085/extra-renal-transplanted-kidney-stone-case-presentation-and-literature-review
#6
Abbas Basiri, Mohammad Nadjafi Semnani, Hamed Mohseni Rad
Soft tissue calcification is common in uremic patients. Wound calcification or ossification is not so prevalent except in specific conditions like inflammation and ischemia or wound tension. We present a 40-year-old transplanted patient, not only perirenal ossification but also with multiple perirenal stones. The presentation was severe pain on the site of transplantation. Pre-op CT scan revealed perirenal calcified mass. Intraoperative finding was verythick tissue accompanied with a lot of stones around the transplanted kidney...
December 30, 2017: Urology Journal
https://www.readbyqxmd.com/read/29289860/assessment-of-the-combination-of-temperature-and-relative-humidity-on-kidney-stone-presentations
#7
Michelle E Ross, Ana M Vicedo-Cabrera, Robert E Kopp, Lihai Song, David S Goldfarb, Jose Pulido, Steven Warner, Susan L Furth, Gregory E Tasian
Temperature and relative humidity have opposing effects on evaporative water loss, the likely mediator of the temperature-dependence of nephrolithiasis. However, prior studies considered only dry-bulb temperatures when estimating the temperature-dependence of nephrolithiasis. We used distributed lag non-linear models and repeated 10-fold cross-validation to determine the daily temperature metric and corresponding adjustment for relative humidity that most accurately predicted kidney stone presentations during hot and cold periods in South Carolina from 1997 to 2015...
December 28, 2017: Environmental Research
https://www.readbyqxmd.com/read/29289106/tracking-kidney-stones-in-a-homogeneous-medium-using-a-trilateration-approach
#8
Kya Shoar, Benjamin W Turney, Robin O Cleveland
Shock wave lithotripsy is a non-invasive procedure by which kidney stones are fragmented by thousands of shock waves. Currently, many shock waves are delivered to the body that do not impact the stone, but do result in tissue trauma. This motivates developing a monitoring system to locate kidney stones, with the goal of gating shock waves not aligned with the stone, and hence, reducing renal trauma during lithotripsy. The system consists of a circular array housing twenty-two 0.5 MHz transducers that can be mounted on a clinical lithotripter...
December 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/29288007/overexpression-of-semaphorin-3a-in-patients-with-urothelial-cancer
#9
Zahava Vadasz, Jacob Rubinstein, Jacob Bejar, Hilla Sheffer, Sarel Halachmi
OBJECTIVE: A highly sensitive and specific urine marker for the detection of recurrent urothelial cancer and for screening healthy population or people at risk for urothelial cancer has not been found yet. As urine cytology is not sensitive enough, patients with non-muscle-invasive bladder cancer need lifelong follow-up involving multiple invasive cystoscopies. Our aims of study were to examine the expression of semaphorin 3A in urothelial cancer patients and to evaluate semaphorin 3A as a potential marker for urothelial cancer...
December 26, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/29279874/calcium-tartrate-tetrahydrate-case-report-of-a-novel-human-kidney-stone
#10
Colin Kleinguetl, James C Williams, Samar A Ibrahim, Michel Daudon, Erin T Bird, Marawan M El Tayeb
Background: Calcium tartrate tetrahydrate has been reported as the main mineral in urinary stones in rats that have significant tartrate in their diet, but in humans, there has been only one mention of calcium tartrate stones in the form of bladder stone, and that case was in Africa. Case Presentation: Patient is a 34-year-old Caucasian male who presented with typical symptoms of nephrolithiasis. CT abd/pelvis (renal stone protocol) revealed a 2 cm nonobstructing stone of the right renal pelvis. Patient underwent an uncomplicated right percutaneous nephrolithotomy and was noted to be stone free after surgery...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/29277886/the-respiratory-induced-kidney-motion-does-it-really-effect-the-shock-wave-lithotripsy
#11
Mehmet Ozgur Yucel, Serkan Ozcan, Gokhan Tirpan, Murat Bagcioglu, Arif Aydin, Arif Demirbas, Tolga Karakan
PURPOSE: To investigate the effect of respiratory induced kidney mobility on success of shock wave lithotripsy (SWL) with an electrohydraulic lithotripter. MATERIALS AND METHODS: Between May 2013 and April 2015, 158 patients underwent SWL treatment for kidney stones with an electrohydraulic lithotripter. The exclusion criteria were presence of a known metabolic disease (such as cystinuria), non-opaque stones, need for focusing with ultrasonography, abnormal habitus, urinary tract abnormalities, and inability to tolerate SWL until the end of the procedure...
December 25, 2017: Urology Journal
https://www.readbyqxmd.com/read/29277692/characterisation-of-signalling-and-regulation-of-common-calcitonin-receptor-splice-variants-and-polymorphisms
#12
Emma Dal Maso, Rasmus Just, Caroline Hick, Arthur Christopoulos, Patrick M Sexton, Denise Wootten, Sebastian G B Furness
The calcitonin receptor (CTR) is a class B G protein-coupled receptor that is a therapeutic target for the treatment of hypercalcaemia of malignancy, Paget's disease and osteoporosis. In primates, the CTR is subject to alternative splicing, with a unique, primate-specific splice variant being preferentially expressed in reproductive organs, lung and kidney. In addition, humans possess a common non-synonymous single-nucleotide polymorphism (SNP) encoding a proline/leucine substitution in the C-terminal tail...
December 22, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29275531/renal-phosphate-handling-and-inherited-disorders-of-phosphate-reabsorption-an-update
#13
REVIEW
Carsten A Wagner, Isabel Rubio-Aliaga, Nati Hernando
Renal phosphate handling critically determines plasma phosphate and whole body phosphate levels. Filtered phosphate is mostly reabsorbed by Na+-dependent phosphate transporters located in the brush border membrane of the proximal tubule: NaPi-IIa (SLC34A1), NaPi-IIc (SLC34A3), and Pit-2 (SLC20A2). Here we review new evidence for the role and relevance of these transporters in inherited disorders of renal phosphate handling. The importance of NaPi-IIa and NaPi-IIc for renal phosphate reabsorption and mineral homeostasis has been highlighted by the identification of mutations in these transporters in a subset of patients with infantile idiopathic hypercalcemia and patients with hereditary hypophosphatemic rickets with hypercalciuria...
December 23, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/29273258/super-mini-percutaneous-nephrolithotomy-for-renal-stone-less-than-25mm-in-pediatric-patients-could-it-be-an-alternative-to-shockwave-lithotripsy
#14
K Sarica, B Eryildirim, A Tuerxun, A Batuer, O Kavukoglu, A Buz, G Zeng
AIM: To evaluate the efficacy of 2 different techniques: shock wave lithotripsy (SWL) vs. super-mini percutaneous nephrolithotomy (SMP), in terms of success as well as complication rates in pediatric renal stones sizing<25mm. PATIENTS AND METHODS: A total of 219 children (aging between 1-17 years) undergoing 2 different treatment modalities (SWL vs. SMP) for kidney stones<25mm were included. Depending on the type of the procedure applied, children were divided into 2 different groups: group 1 (n=108), children treated with SWL, and group 2 (n=111), children treated with SMP...
December 19, 2017: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/29249291/a-multigene-signature-based-on-cell-cycle-proliferation-improves-prediction-of-mortality-within-5-yr-of-radical-nephrectomy-for-renal-cell-carcinoma
#15
Todd M Morgan, Rohit Mehra, Placede Tiemeny, J Stuart Wolf, Shulin Wu, Zaina Sangale, Michael Brawer, Steven Stone, Chin-Lee Wu, Adam S Feldman
BACKGROUND: There is a critical need for improved prognostic discrimination in patients with renal cell carcinoma (RCC) given the increasing awareness that some patients may be managed with active surveillance, while others with higher-risk disease might benefit from adjuvant therapy following surgery. OBJECTIVE: To determine whether a multigene proliferation signature predicts long-term oncologic outcomes in surgically resected RCC. DESIGN, SETTING, AND PARTICIPANTS: The cell cycle proliferation (CCP) score was determined after radical nephrectomy for localized clear cell, papillary, or chromophobe RCC in 565 patients...
December 14, 2017: European Urology
https://www.readbyqxmd.com/read/29249235/kidney-stone-composition-in-the-kingdom-of-saudi-arabia%C3%A2
#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/29248604/comparison-of-two-different-distraction-methods-affecting-the-level-of-pain-and-anxiety-during-extracorporeal-shock-wave-lithotripsy-a-randomized-controlled-trial
#17
Elif Gezginci, Emine Iyigun, Serdar Yalcin, Selahattin Bedir, I Yasar Ozgok
Extracorporeal shock wave lithotripsy can cause pain and anxiety for patients. Despite the use of many distraction methods to reduce pain and anxiety, there is no study on the use of stress balls during lithotripsy. The aim of the study was to investigate the efficacy of use of stress balls and music therapy to reduce pain and anxiety during lithotripsy. This was a single-center, parallel randomized controlled trial. The study involved the lithotripsy unit in a training and research hospital in Turkey. The study included 120 patients who had kidney or ureter stones...
December 13, 2017: Pain Management Nursing: Official Journal of the American Society of Pain Management Nurses
https://www.readbyqxmd.com/read/29244271/laparoscopic-dismembered-pyeloplasty-combined-with-port-entrance-flexible-renoscopic-lithotripsy
#18
Kaan Gokcen, Gokhan Gokce, Gokce Dundar, Resul Cicek, Halil Gulbahar, Emin Yener Gultekin
INTRODUCTION: Ureteropelvic junction obstruction and concomitant calculus disease may coexist. We demonstrate our use of flexible renoscopy during laparoscopic pyeloplasty for caliceal stone removal. PATIENT AND METHODS: A 28-year-old female patient presented with recurrent attacks of flank pain of two years duration. When noncontrast-CT and DTPA were performed, the patient was diagnosed with ureteropelvic junction stenosis and 3 stones with a total burden of 14mm in the lower pole of right kidney...
December 18, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/29243111/retrospective-comparison-of-measured-stone-size-and-posterior-acoustic-shadow-width-in-clinical-ultrasound-images
#19
Jessica C Dai, Barbrina Dunmire, Kevan M Sternberg, Ziyue Liu, Troy Larson, Jeff Thiel, Helena C Chang, Jonathan D Harper, Michael R Bailey, Mathew D Sorensen
PURPOSE: Posterior acoustic shadow width has been proposed as a more accurate measure of kidney stone size compared to direct measurement of stone width on ultrasound (US). Published data in humans to date have been based on a research using US system. Herein, we compared these two measurements in clinical US images. METHODS: Thirty patient image sets where computed tomography (CT) and US images were captured less than 1 day apart were retrospectively reviewed. Five blinded reviewers independently assessed the largest stone in each image set for shadow presence and size...
December 14, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/29241827/prevalence-and-risk-factors-for-kidney-stones-in-fibrodysplasia-ossificans-progressiva
#20
REVIEW
Rishi R Gupta, Patricia L R Delai, David L Glaser, David M Rocke, Mona Al Mukaddam, Robert J Pignolo, Frederick S Kaplan
The worldwide prevalence and risk factors for kidney stones in patients with fibrodysplasia ossificans progressiva (FOP) are unknown. We conducted a survey of 383 patient-members of the International Fibrodysplasia Ossificans Progressiva Association, comprising the entire global membership of the international FOP community. Two hundred seven patients from 31 nations and 6 continents (54%) responded. Nineteen of 207 respondents had kidney stones, revealing a worldwide prevalence of 9.2%. In a confirmatory follow-up study of subjects participating in a longitudinal FOP natural history study, 9 of 114 individuals reported a history of kidney stones (7...
December 11, 2017: Bone
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