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Urolithiasis

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https://www.readbyqxmd.com/read/29692695/experience-of-a-tertiary-level-urology-center-in-the-clinical-urological-events-of-rare-and-very-rare-incidence-i-surgical-never-events-2-intracorporeally-retained-urological-surgical-items
#1
Rabea A Gadelkareem
Objective: Presentation of our center's experience in the management of intracorporeally-retained urological surgical items. Materials and Methods: Retrospective search of our center's data for cases of retained surgical items during the period July 2006 to June 2016. Each case was studied for the demographic and clinical variables including types, presentation, and management. Results: Out of more than 55,000 different urological interventions, only 39 cases (28 males and 11 females) had retained surgical items...
March 2018: Current Urology
https://www.readbyqxmd.com/read/29692689/evaluation-of-deceased-kidney-donors-for-renal-stone-disease-is-computed-tomography-needed
#2
REVIEW
Senol Tonyali, Ahmet M Aydin
Objective: To investigate the clinical consequences of neglected risk of urolithiasis in deceased kidney donors in routine clinical practice, this study focused on different management options for transplanted allograft stones, and tried to find new solutions for more accurate detection of urolithiasis in deceased kidney donors prior to renal transplantation. Methods and Results: The overall prevalence of stone disease in endemic countries is between 7 and 29%. Because of the increased risk for stone disease in epidemic countries, screening renal grafts from deceased donors necessitates more sensitive imaging tests...
March 2018: Current Urology
https://www.readbyqxmd.com/read/29692509/spectrum-of-urinary-stone-composition-in-northwestern-rajasthan-using-fourier-transform-infrared-spectroscopy
#3
Amilal Bhat, Vikash Singh, Mahakshit Bhat, Vinay Kumar, Akshita Bhat
Introduction: The aim of this study was to evaluate the chemical composition of urinary stones and pattern of changes according to the patient's age in Northwestern Rajasthan using Fourier transform infrared (FTIR) spectroscopy. Materials and Methods: A prospective study of 1005 urolithiasis patients was carried out in two tertiary care centers from September 2012 to September 2016. Chemical composition of urinary stones was analyzed using FTIR spectroscopy, and a subgroup study based on the patient's age was done (8-12 years - Group A, 13-18 years - Group B, and >18 years - Group C)...
April 2018: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/29680902/contamination-of-soil-and-the-medicinal-plant-phyllanthus-niruri-linn-with-cadmium-in-ceramic-industrial-areas
#4
Vanessa Santana Vieira Santos, Karen Magalhães Arantes, Ester Luiza Gonçalves, Carlos Fernando Campos, Edimar Olegário de Campos Júnior, Antônio Marcos Machado de Oliveira, Boscolli Barbosa Pereira
Phyllanthus niruri is a plant that is used to prevent calcium oxalate crystallisation and to block the stone formation in urolithiasis. Contaminants in the environment can be readily taken up by medicinal plants due to their ability to absorb chemicals into their tissues. If contaminated plants are ingested, they have the potential to negatively affect human and environmental health. The aim of this study was to assess contamination in the soil and the medicinal plant P. niruri by cadmium (Cd) in ceramic industrial areas of Monte Carmelo, Brazil...
April 22, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29678272/fragmentation-targeted-at-preferred-discontinuities-a-new-concept-in-endolithotripsy-with-holmium-laser-yag
#5
F M Sánchez-Martín, E Emiliani, E Pueyo-Morer, O Angerri-Feu, F Sanguedolce, F Millán, H Villavicencio
INTRODUCTION: There are currently 3holmium laser, YAG (Ho:YAG) endolithotripsy procedures that are considered basic (fragmentation, pulverisation, "pop-corn" technique). We present the technique of fragmentation targeted at preferred discontinuities (FTPD), a new concept of endolithotripsy by Ho:YAG laser. MATERIAL AND METHODS: The FTPD technique is based on the selective application of energy (targeting a specific preselected point) to an area that is visually prone to the formation of a fracture line or preferred discontinuity (conditioned by the anisotropy of the urolithiasis)...
April 17, 2018: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/29675722/contrast-enhanced-or-noncontrast-ct-for-renal-colic-utilizing-urinalysis-and-patient-history-of-urolithiasis-to-decide
#6
Vishal Desai, Mougnyan Cox, Sandeep Deshmukh, Christopher G Roth
PURPOSE: In the emergency setting, flank pain commonly leads to a noncontrast CT despite a significant percentage of patients having alternative diagnoses, often difficult to characterize without contrast. We investigated the combined utility of urinalysis and history of urolithiasis in identifying patients who are unlikely to have urolithiasis and may benefit from a contrast-enhanced study. METHODS: Retrospective review of 350 patients from May 2013 to May 2016 was performed for patients in the emergency department with renal colic that underwent noncontrast CT and urinalysis testing...
April 20, 2018: Emergency Radiology
https://www.readbyqxmd.com/read/29673291/in-vitro-and-in-vivo-models-for-the-study-of-urolithiasis
#7
Aslam Khan
Preclinical animal research has greatly contributed and will continue to contribute in our understanding of various disease states and provided methods for more understanding of disease states and designs to test novel pharmaco-therapeutic interventions against these diseases. For urolithiasis, scientists have developed numerous in vitro and in vivo models that attempt to replicate human urolithiasis. In this review, I have explained in vitro and in vivo models that are more common, affordable, and easy to replicate...
April 1, 2018: Urologia
https://www.readbyqxmd.com/read/29668762/prevalence-of-metabolic-syndrome-in-china-an-up-dated-cross-sectional-study
#8
Yu Lan, Zanlin Mai, Shiyu Zhou, Yang Liu, Shujue Li, Zhijian Zhao, Xiaolu Duan, Cao Cai, Tuo Deng, Wei Zhu, Wenqi Wu, Guohua Zeng
Metabolic syndrome (MS) is an increasing public health concern because of rapid lifestyle changes. Although there have been previous studies on the prevalence of MS in China, the prevalence may have changed with lifestyle changes over the last decade. To update this prevalence, we performed a cross-sectional survey among adults over 18 years old across China from May 2013 to July 2014. Participants underwent questionnaires and provided blood and urine samples for analysis. MS was defined according to the criteria of the China Diabetes Society...
2018: PloS One
https://www.readbyqxmd.com/read/29660779/clinical-findings-and-diagnostic-procedures-in-270-small-ruminants-with-obstructive-urolithiasis
#9
Anna-Katharina Riedi, Gabriela Knubben-Schweizer, Mireille Meylan
BACKGROUND: Details of the clinical signs of obstructive urolithiasis in male small ruminants have not been documented in a large population. OBJECTIVE: To describe the clinical presentation and diagnostic procedures in a large group of small ruminants with urolithiasis. ANIMALS: Two hundred and seventy small ruminants (158 sheep and 112 goats). METHODS: Retrospective study of 270 cases identified based on clinical records...
April 16, 2018: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29657221/unusual-cause-of-crystalline-nephropathy
#10
Natarajan Gopalakrishnan, Dhanasekaran Rajasekar, Jeyachandran Dhanapriya, Thanigachalam Dineshkumar, Ramanathan Sakthirajan, T Balasubramaniyan, V Murugesan
Adenine phosphoribosyltransferase deficiency is a rare, inherited autosomal recessive disease presenting with 2,8-dihydroxyadenine (DHA) urolithiasis, DHA nephropathy, and chronic kidney disease. The presence of DHA crystals in urine and renal biopsy is pathognomonic of the disease. We report a 23-year-old female with acute renal failure and nephrotic proteinuria. Urinalysis showed reddish brown, round crystals with dark outline, and central spicules consistent with 2,8-DHA crystals. Renal biopsy showed membranous nephropathy and 2,8-DHA nephropathy...
March 2018: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/29649901/kidney-stone-composition-in-third-world-areas-what-kashgar-tells-us
#11
Jiawei Luo, Aierken Tuerxun, Abuduwupuer Shataer, Abudukahaer Batuer, Chonghe Jiang, Yizhou Zhou, Zhilin Li, Donglong Cheng, Yongda Liu
OBJECTIVE To analyze urinary stone compositions in patients from Kashgar, China. MATERIALS AND METHODS We analyzed the components of urinary stones in 732 consecutive patients with urolithiasis admitted to the First and Second People's Hospital of Kashgar Prefecture, Xinjiang, from July 2014 to November 2016. The patients were divided into two groups by ages: group A, 0-18 and group B, >18 years old. The distributions of various stone compositions were analysed and correlated to the gender and age. RESULTS The mean age of group A was 3...
April 13, 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29648701/chronological-changes-in-the-epidemiological-characteristics-of-upper-urinary-tract-urolithiasis-in-japan
#12
Shinichi Sakamoto, Katsuhito Miyazawa, Takahiro Yasui, Taro Iguchi, Misuzu Fujita, Hiroaki Nishimatsu, Takuro Masaki, Toru Hasegawa, Hatsuki Hibi, Takashi Arakawa, Ryosuke Ando, Yoshinari Kato, Noritaka Ishito, Satoshi Yamaguchi, Ryoji Takazawa, Masao Tsujihata, Tadashi Matsuda, Koichiro Akakura, Akira Hata, Tomohiko Ichikawa
OBJECTIVES: To assess epidemiological and chronological trends of upper urinary tract stones in Japan in 2015. METHODS: Patients with a first episode of upper urinary tract stones in 2015 were enrolled in this nationwide survey. The study included all hospitals approved by the Japanese Board of Urology, therefore covering most of the hospitals where urologists practice in Japan. The annual incidence and composition of urolithiasis were evaluated by age and sex. These results were compared with the previous results of the nationwide surveys from 1965 to 2005 to analyze temporal trends...
April 2018: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/29628851/renal-oxalate-stones-in-children-with-zellweger-spectrum-disorders
#13
Hamdan Hammad Alhazmi
Peroxisomal biogenesis disorders due to PEX gene defects are classified into many subgroups, of which Zellweger spectrum disorders (ZSDs) represent the major subgroup. The ZSDs are clinical and biochemical disorders divided into three phenotypes: neonatal, adolescence, or adult. Clinical presentations vary with severity of the condition. Metabolic abnormalities occur due to functional peroxisomal defects that could be detected in blood and urine. No cure or definitive management exists to date; only supportive and palliative measures are applied to prevent worse sequelae...
April 2018: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/29623097/renal-effects-of-non-tenofovir-antiretroviral-therapy-in-patients-living-with-hiv
#14
REVIEW
Milena M McLaughlin, Aimee J Guerrero, Andrew Merker
A review of literature published regarding non-tenofovir antiretroviral agents causing renal adverse effects was conducted. The literature involving renal adverse effects and antiretroviral therapy is most robust with protease inhibitors, specifically atazanavir and indinavir, and includes reports of crystalluria, leukocyturia, nephritis, nephrolithiasis, nephropathy and urolithiasis. Several case reports describe potential nephropathy (including Fanconi syndrome) secondary to administration of abacavir, didanosine, lamivudine and stavudine...
2018: Drugs in Context
https://www.readbyqxmd.com/read/29611401/low-dose-unenhanced-computed-tomography-with-iterative-reconstruction-for-diagnosis-of-ureter-stones
#15
Byung Hoon Chi, In Ho Chang, Dong Hoon Lee, Sung Bin Park, Kyung Do Kim, Young Tae Moon, Tae Kye Huh
PURPOSE: To study the clinical application of low-dose unenhanced computed tomography with iterative reconstruction technique (LDCT-IR) on renal colic in the emergency department. MATERIALS AND METHODS: We conducted a prospective, single-blinded, randomized, and non-inferiority study. From March 2014 to August 2015, 112 patients with renal colic were included, and were randomized to either LDCT-IR (n=46) or standard-dose unenhanced CT (SDCT) (n=66) groups. The accuracy of urolithiasis diagnosis was the primary endpoint of this study...
May 2018: Yonsei Medical Journal
https://www.readbyqxmd.com/read/29606152/bilateral-ureterolithiasis-a-true-positive-and-false-negative-pocus-exam-in-a-patient-with-renal-colic
#16
Matthew P Lowe, Christopher Cox
Acute flank pain from suspected urolithiasis is a common presenting complaint in the Emergency Department. Multiple computed tomography (CT) has traditionally been the standard imaging modality used to diagnose obstructive kidney stones, however point of care ultrasound (PoCUS) can play an important role in the diagnostic algorithm and risk stratification of acute flank pain. Here, we present the case of a 29-year-old female with suspected urolithiasis, who underwent PoCUS that revealed right-sided hydronephrosis and normal left kidney, bladder, and aorta...
April 2, 2018: CJEM
https://www.readbyqxmd.com/read/29605825/potassium-citrate-is-better-in-reducing-salt-and-increasing-urine-ph-than-oral-intake-of-lemonade-a-cross-over-study
#17
Jing Shen, Xicheng Zhang
BACKGROUND Urine solute supersaturation leads to the formation of urinary tract caliceal stones. Many parameters can be involved in the supersaturation of solutes in urine, such as pH. Uric acid has pKa ≤5.5, and it is solubilized at pH ≥5.5. The objective of the study was to evaluate the effects of potassium citrate and lemonade supplementation in pediatric patients with urolithiasis. MATERIAL AND METHODS A total of 126 children who had lower ureteral stones calculi and fragments with severe colic pain participated in this cross-over study...
April 1, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29598155/two-are-no-different-than-one-ureteral-duplication-appears-to-have-no-effect-on-ureteroscopy-outcomes
#18
Nathan Chertack, Rajat Jain, Manoj Monga, Mark Noble, Sri Sivalingam
Introduction Ureteral duplication is the most common ureteral anomaly, occurring in 0.6-0.7% of the population. Our objective was to compare urolithiasis treatment outcomes in patients with and without ureteral duplication. Methods Patients with ureteral duplication who underwent ureteroscopy (URS) were identified in a stone registry at a high volume, tertiary care center from 1998 to 2015. Preoperative, intraoperative, and postoperative data were collected retrospectively. A 1:1 control cohort of patients without duplication was identified, matched by stone location and size, as well as age, BMI and gender...
March 29, 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29595647/ultrasound-guided-minimally-invasive-percutaneous-nephrolithotomy-in-the-treatment-of-pediatric-patients-6-years-a-single-center-10-years-experience
#19
Yang Hong, Qingquan Xu, Xiaobo Huang, Zhenjie Zhu, Qingya Yang, Lizhe An
Owing to the fragile kidney and relative small collecting system of pediatric patients, urologists were always reluctant to treat pediatric urolithiasis with PCNL. Here we conduct a study to assess the effectiveness and safety of pediatric patients with renal calculi <6 years.A total of 88 pediatric patients (99 kidney units) <6 years underwent the ultrasound (US)-guided minimally invasive percutaneous nephrolithotomy in our institute from March 2006 to April 2016. The mean age was 30.9 months (range, 7-72 months)...
March 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29593465/experience-of-a-tertiary-level-urology-center-in-the-clinical-urological-events-of-rare-and-very-rare-incidence-i-surgical-never-events-1-urological-wrong-surgery-catastrophes-and-disabling-complications
#20
Rabea A Gadelkareem
Introduction: Surgical never events are preventable harmful non-intentional human errors. Urology is a common surgical specialty for their occurrence. Patients and Methods: A retrospective search of our center's data was done during the period 2006-2016 for surgical never events. Each included case was studied for the primary diagnosis, procedure, and subspecialty, never event type and timing, needed extra-interventions, urologist/procedure proportioning, outcomes, and possible underlying causes of the event...
February 2018: Current Urology
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