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Nephrolithiasis

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https://www.readbyqxmd.com/read/28811768/clinical-predictors-of-an-abnormal-ultrasound-in-patients-presenting-with-suspected-nephrolithiasis
#1
Salman Tahir Shafi, Roshina Anjum, Tahir Shafi
OBJECTIVE: To determine any clinical features associated with an abnormal ultrasound in patients with suspected nephrolithiasis in an out-patient setting. METHODS: The study design was cross-sectional in nature. The study was conducted at an out-patient nephrology department of a tertiary care facility over a 3 month period. Patients included in the study were 18-80 years old, who presented with unilateral flank or costovertebral angle pain with or without other clinical features suggestive of renal or ureteric calculus based on clinician's judgement...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28806302/surgery-for-primary-hyperparathyroidism-adherence-to-consensus-guidelines-in-an-academic-health-system
#2
Eric J Kuo, Mostafa A Al-Alusi, Lin Du, Albert Shieh, Masha J Livhits, Angela M Leung, Michael W Yeh
OBJECTIVE: To determine the extent to which consensus guidelines for surgery in patients with primary hyperparathyroidism (PHPT) are followed within an academic health system. BACKGROUND: Previous studies have shown that adherence to consensus guidelines in community practice is low. METHODS: Adults with biochemically confirmed PHPT who received primary care within an academic health system were identified from 2005 to 2015. Multivariable logistic regression was used to analyze predictors of parathyroidectomy (PTx)...
August 11, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28794288/kidney-disease-in-oman-a-view-of-the-current-and-future-landscapes
#3
Intisar Hamed Al Alawi, Issa Al Salmi, Adhra Al Mawali, John A Sayer
Oman is located in the southeast of Arabian Peninsula with a relatively young population of about 3 831 553 people. The Ministry of Health, which is the healthcare provider, is facing a challenge with the increased levels of noncommunicable diseases including chronic kidney disease. A growing number of patients progress to end-stage kidney disease (ESKD), demanding renal replacement therapy. In 2014, there were 1339 of ESKD patients receiving dialysis and almost 1400 patients received kidney transplants. The estimated annual incidence of ESKD is 120 patients per million population...
July 2017: Iranian Journal of Kidney Diseases
https://www.readbyqxmd.com/read/28775128/refining-diagnostic-approaches-in-nephrolithiasis-incomplete-distal-renal-tubular-acidosis
#4
EDITORIAL
David S Goldfarb
No abstract text is available yet for this article.
August 3, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28775126/furosemide-fludrocortisone-test-and-clinical-parameters-to-diagnose-incomplete-distal-renal-tubular-acidosis-in-kidney-stone-formers
#5
Nasser A Dhayat, Michael W Gradwell, Ganesh Pathare, Manuel Anderegg, Lisa Schneider, David Luethi, Cedric Mattmann, Orson W Moe, Bruno Vogt, Daniel G Fuster
BACKGROUND AND OBJECTIVES: Incomplete distal renal tubular acidosis is a well known cause of calcareous nephrolithiasis but the prevalence is unknown, mostly due to lack of accepted diagnostic tests and criteria. The ammonium chloride test is considered as gold standard for the diagnosis of incomplete distal renal tubular acidosis, but the furosemide/fludrocortisone test was recently proposed as an alternative. Because of the lack of rigorous comparative studies, the validity of the furosemide/fludrocortisone test in stone formers remains unknown...
August 3, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28775080/nephrolithisis-in-a-newborn-a-rare-case-and-review-of-literature
#6
Kawaljit Singh, Ashok Kumar Sokhal, Satyanarayan Sankhwar, Bimalesh Purkait
Nephrolithiasis, although a common entity in adults, is less common in children and rare in newborns. The evaluation and management strategies of renal stones in neonates are unclear. We report a rare scenario of renal calculus in a newborn aged 3 days presenting with decreased urine output, fever and crying during micturition. Patient was thoroughly investigated and managed conservatively. Further follow-up showed increase in stone size with recurrent urinary tract infections, hence shock wave lithotripsy was performed to successfully break and clear the stone fragments...
August 3, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28764845/impaired-calcium-sensing-distinguishes-primary-hyperparathyroidism-phpt-patients-with-low-bone-mineral-density
#7
Thomas J Weber, James Koh, Samantha M Thomas, Joyce A Hogue, Randall P Scheri, Sanziana A Roman, Julie A Sosa
CONTEXT: A subset of PHPT patients exhibit a more severe disease phenotype characterized by bone loss, fractures, recurrent nephrolithiasis, and other dysfunctions, but the underlying reasons for this disparity in clinical presentation remain unknown. OBJECTIVE: We sought to identify new mechanistic indices that could inform more personalized management of PHPT. DESIGN: Pre-, peri-, and postoperative data and demographic, clinical, and pathological information from patients undergoing parathyroidectomy for PHPT were collected...
September 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28763529/24-hour-urine-calcium-in-the-evaluation-and-management-of-nephrolithiasis
#8
Li Song, Naim M Maalouf
No abstract text is available yet for this article.
August 1, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28762682/-use-of-citrate-in-patients-with-nephrolithiasis
#9
REVIEW
Martino Marangella
Citrate is a tricarboxylic acid and an intermediate metabolite of Krebs cycle. It contributes to oxidative metabolism of both kidney and liver. Alkaline sodium or potassium salts have the potential to increase alkaline reserve. In the kidney citrate is completely filtered at the glomerulus, undergoing to 10-40% tubular resorption. Renal insufficiency, even early, metabolic acidosis, potassium depletion induce hypocitraturia. Its importance in nephrolithiasis stems from its ability to form soluble complexes with calcium and to interfere with crystal formation, thus exerting a dual inhibition, thermodynamic and kinetic...
August 1, 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/28760704/determination-of-alpha-2-mrap-gene-polymorphisms-in-nephrolithiasis-patients
#10
Atheer Awad Mehde, Wesen Adel Mehdi, Faridah Yusof, Raha Ahmed Raus, Zaima Azira Zainal Abidin, Hamid Ghazali, Azlina Abd Rahman
BACKGROUND: The intron 5 insertion/deletion polymorphism of Alpha-2-macroglobulin receptor-associated protein gene (Alpha-2-MRAP) has been implicated in numerous diseases. The current study was designed to analyze the association of intron 5 insertion/deletion polymorphism of Alpha-2-MRAP with nephrolithiasis patients. METHODS: PCR was conducted on genomic DNA of patients and control to look for Alpha-2-MRAP insertion/deletion polymorphism. Besides that, serum level of Alpha-2-MRAP, oxidative stress marker myeloperoxidase, Malondialdehyde (MDA), Advanced oxidation protein products (AOPP), and uric acid were determined...
July 29, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28748119/uric-acid-in-the-pathogenesis-of-metabolic-renal-and-cardiovascular-diseases-a-review
#11
REVIEW
Usama A A Sharaf El Din, Mona M Salem, Dina O Abdulazim
The association between uric acid (UA) on one side and systemic hypertension (Htn), dyslipidemia, glucose intolerance, overweight, fatty liver, renal disease and cardiovascular disease (CVD) on the other side is well recognized. However, the causal relationship between UA and these different clinical problems is still debatable. The recent years have witnessed hundreds of experimental and clinical trials that favored the opinion that UA is a probable player in the pathogenesis of these disease entities. These studies disclosed the strong association between hyperuricemia and metabolic syndrome (MS), obesity, Htn, type 2 diabetes mellitus (DM), non-alcoholic fatty liver disease, hypertriglyceridemia, acute kidney injury, chronic kidney disease (CKD), coronary heart disease (CHD), heart failure and increased mortality among cardiac and CKD patients...
September 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28739373/analyte-variations-in-consecutive-24-hour-urine-collections-in-children
#12
Jonathan S Ellison, John M Hollingsworth, Craig B Langman, John R Asplin, Andrew L Schwaderer, Phyllis Yan, Maggie Bierlein, Mark A Barraza, William R Defoor, T Ernesto Figueroa, Elizabeth C Jackson, Venkata R Jayanthi, Emilie K Johnson, David B Joseph, Margarett Shnorhavorian
PURPOSE: The metabolic evaluation of children with nephrolithiasis begins with a 24-h urine collection. For adults, the diagnostic yield increases with consecutive collections; however, little is known regarding the variability of multiple 24-h studies in the pediatric population. We sought to evaluate the variability of consecutive 24-h urine collection in children through a multi-institutional study hypothesizing that compared with a single collection, consecutive 24-h urine collections would reveal a greater degree of clinically useful information in the evaluation of children at risk for nephrolithiasis...
July 12, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28738835/incidence-of-and-risk-factors-for-nephrolithiasis-in-patients-with-gout-and-the-general-population-a-cohort-study
#13
A J Landgren, L T H Jacobsson, U Lindström, T Z S Sandström, P Drivelegka, L Björkman, E Fjellstedt, M Dehlin
BACKGROUND: Nephrolithiasis (NL) is known to be associated with gout, although there are few comparative studies on risk and risk factors for NL in gout compared to population cohorts. In this cohort study we investigated: (1) overall incidence of NL in gout (cases) and general population controls; (2) risk and risk factors (common comorbidities and medications) for first-time NL in cases and controls separately. METHODS: Cases (n = 29,968) and age-matched and sex-matched controls (n = 138,678) were identified from the regional healthcare database in western Sweden (VEGA)...
July 24, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28737266/nephrolithiasis-a-complication-of-pediatric-diabetic-ketoacidosis
#14
Sungeeta Agrawal, Robin Kremsdorf, Serife Uysal, Meghan E Fredette, Lisa Swartz Topor
OBJECTIVE: To determine the frequency of nephrolithiasis as a complication of diabetic ketoacidosis (DKA) in pediatrics. METHODS: We performed a retrospective chart review of patients with DKA admitted to a pediatric hospital between January 2009 and July 2016. We identified patients with nephrolithiasis during admission for DKA. RESULTS: We identified 395 episodes of DKA over 7.5 years. Nephrolithiasis developed as a complication of DKA in 3 of those admissions (0...
July 24, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/28729176/infant-nephrolithiasis-and-nephrocalcinosis-natural-history-and-predictors-of-surgical-intervention
#15
Veridiana Andrioli, Kerri Highmore, Michael P Leonard, Luis A Guerra, Kenneth Tang, Jennifer Vethamuthu, Victoria Meyers, Katrina J Sullivan, Melise A Keays
INTRODUCTION: Renal stone disease diagnosed in the first year of life is relatively uncommon. While risk factors such as low birth weight, furosemide exposure, and metabolic disorders are well established, there exists little information regarding resolution rates and need for surgical intervention. Our study objective was to evaluate urolithiasis and renal calcification resolution rates, time to resolution, and need for surgical intervention in children diagnosed in their first year of life...
July 10, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28720368/a-critical-review-of-miniaturised-percutaneous-nephrolithotomy-is-smaller-better
#16
REVIEW
Silvia Proietti, Guido Giusti, Mahesh Desai, Arvind P Ganpule
CONTEXT: In an effort to reduce morbidity related to percutaneous nephrolithotomy (PCNL), some investigators have progressively introduced miniaturised approaches. The development of miniaturised nephroscopes facilitated widespread dissemination of these techniques and a significant expansion of the role of PCNL in endourology. OBJECTIVE: To discuss the different techniques comprising modern PCNL and identify the pros and cons of each of them. EVIDENCE ACQUISITION: Data for this review were identified through a search of PubMed, including studies published in the last 20 yr in core clinical journals in English...
February 2017: European Urology Focus
https://www.readbyqxmd.com/read/28720352/medical-measures-for-secondary-prevention-of-urolithiasis
#17
Khashayar Sakhaee
The global prevalence of nephrolithiasis has progressively increased over the past several decades. Kidney stone disease without treatment is a recurrent illness that represents a major health burden across the globe with associated economic costs.
February 2017: European Urology Focus
https://www.readbyqxmd.com/read/28717662/clinical-and-molecular-characterization-of-cystinuria-in-a-french-cohort-relevance-of-assessing-large-scale-rearrangements-and-splicing-variants
#18
Pascaline Gaildrat, Said Lebbah, Abdellah Tebani, Bénédicte Sudrié-Arnaud, Isabelle Tostivint, Guillaume Bollee, Hélène Tubeuf, Thomas Charles, Aurelia Bertholet-Thomas, Alice Goldenberg, Frederic Barbey, Alexandra Martins, Pascale Saugier-Veber, Thierry Frébourg, Bertrand Knebelmann, Soumeya Bekri
BACKGROUND: Cystinuria is an autosomal recessive disorder of dibasic amino acid transport in the kidney and the intestine leading to increased urinary cystine excretion and nephrolithiasis. Two genes, SLC3A1 and SLC7A9, coding respectively for rBAT and b0,+AT, account for the genetic basis of cystinuria. METHODS: This study reports the clinical and molecular characterization of a French cohort including 112 cystinuria patients and 25 relatives from 99 families. Molecular screening was performed using sequencing and Quantitative Multiplex PCR of Short Fluorescent Fragments analyses...
July 2017: Molecular Genetics & Genomic Medicine
https://www.readbyqxmd.com/read/28716570/protective-effects-of-pistacia-lentiscus-l-fruit-extract-against-calcium-oxalate-monohydrate-induced-proximal-tubular-injury
#19
Nassima Cheraft-Bahloul, Cécile Husson, Meriam Ourtioualous, Sébastien Sinaeve, Djebbar Atmani, Caroline Stévigny, Joëlle L Nortier, Marie-Hélène Antoine
ETHNOPHARMACOLOGICAL RELEVANCE: The world prevalence of kidney stones is increasing and plants are frequently used to treat urolithiasis. Pistacia lentiscus L, a plant which freely grows around the Mediterranean basin areas, is widely used for various pathologies. P. lentiscus has an important impact as it has economical value on top of its pharmacological interest. Decoctions of its aerial parts and/or resin are used to treat kidney stones. AIM OF THE STUDY: To in vitro assess the potential nephroprotective effect of Pistacia lentiscus ethanolic fruit extract (PLEF) on proximal tubular cells in response to the adhesion of calcium oxalate monohydrate (COM) crystals...
July 14, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28716317/long-term-complications-of-the-neurogenic-bladder
#20
REVIEW
Unwanaobong Nseyo, Yahir Santiago-Lastra
It is widely accepted that neurogenic lower urinary tract dysfunction, when left untreated, has a natural history that has a potential for causing deterioration of renal function over time. However, certain patient profiles are at risk for this and other complications. This can be linked to their underlying neurologic disease process. Identifying risk profiles allows the provider to determine what surveillance strategies might be adopted. Risk factors for upper urinary tract deterioration include loss of bladder compliance, repeated bouts of pyelonephritis, and chronic indwelling catheterization...
August 2017: Urologic Clinics of North America
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