keyword
MENU ▼
Read by QxMD icon Read
search

Renal stones

keyword
https://www.readbyqxmd.com/read/28635566/stone-size-is-a-predictor-for-residual-stone-and-multiple-procedures-of-endoscopic-combined-intrarenal-surgery
#1
Shimpei Yamashita, Yasuo Kohjimoto, Akinori Iba, Kazuro Kikkawa, Isao Hara
OBJECTIVES: The aim of this study was to identify the predictors of treatment results after endoscopic combined intrarenal surgery (ECIRS). MATERIALS AND METHODS: A retrospective analysis was conducted of 75 patients with renal stones who underwent ECIRS and a preoperative non-contrast computed tomography (NCCT) examination. The stone-free rate (SFR), number of primary procedures and perioperative complications were investigated, and the predictors contributing to these three outcomes were analyzed...
February 13, 2017: Scandinavian Journal of Urology
https://www.readbyqxmd.com/read/28635397/induction-of-apoptosis-and-autophagy-by-calcifying-nanoparticles-in-human-bladder-cancer-cells
#2
Ji-Hua Wu, Yao-Liang Deng, Quan Liu, Jun-Chuan Yu, Yun-Long Liu, Zi-Qi He, Xiao-Feng Guan
Calcifying nanoparticles have been linked to various types of human disease, but how they contribute to disease processes is unclear. Here, we examined whether and how calcifying nanoparticles isolated from patients with kidney stones are cytotoxic to human bladder cancer cells. Calcifying nanoparticles were isolated from midstream urine of patients with renal calcium oxalate stones and examined by electron microscopy. Human bladder cancer cells (EJ cells) were cultured in the presence of calcifying nanoparticles or nanohydroxyapatites for 12 and 72 h and examined for toxicity using the Cell Counting Kit-8, for autophagy using transmission electron microscopy and confocal microscopy, and for apoptosis using fluorescence microscopy, transmission electron microscopy, and flow cytometry...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28633903/internal-validation-of-a-scoring-system-to-evaluate-the-probability-of-ureteral-stones-the-chokai-score
#3
Hiroki Fukuhara, Osamu Ichiyanagi, Shinichi Midorikawa, Hiroshi Kakizaki, Hisashi Kaneko, Norihiko Tsuchiya
OBJECTIVE: The CHOKAI and STONE scores are prediction models for ureteral stones. The aims of the present study were to evaluate the diagnostic performance, to examine the optimal cut-off value, and to compare the diagnostic performance of each model. METHODS: Patients who presented to our emergency department with renal colic were considered for this prospective study. We analyzed the predictive performance of both STONE and CHOKAI scores at their optimal cut-off values, using receiver operating characteristic (ROC) curve and area under the curve (AUC), as well as sensitivity, specificity, positive likelihood ratio (LR+), and negative likelihood ratio (LR-) at the optimal cut-off value...
June 13, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28631910/-prevalence-and-risk-factors-for-nephrolithiasis-among-young-rural-residents
#4
A V Sin'kov, I N Volosatova, G M Sin'kova, L A Nikolaeva
AIM: To determine the prevalence of nephrolithiasis, assess the significance of known risk factors, and identify new risk factors for nephrolithiasis among young rural residents. MATERIALS AND METHODS: This cross-sectional study was conducted in 5 settlements of the Irkutsk rural district of the Irkutsk region and involved 408 inhabitants (93 men, 315 women) aged from 18 to 47 years. The selection of candidates for the study was randomized. The response of the population was 81...
June 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28631903/-solitary-stones-of-the-lower-renal-calyx-how-to-treat
#5
A G Martov, D V Ergakov, A S Andronov, S V Dutov, R A Takhaev, Z I Kil'chukov, S A Moskalenko
INTRODUCTION: The choice of treatment for the stones of the lower renal calyx is one of the challenging issues of modern urology. The aim of this retrospective and prospective study was to investigate the clinical effectiveness and safety of 3 modern minimally invasive techniques for treating renal stones: percutaneous (PNL) and transurethral (TNL) nephrolithotripsy and extracorporeal shock wave lithotripsy (ESWL) in patients with solitary lower calyx stones sized from 10 to 15 mm. MATERIALS AND METHODS: The study included 136 patients with symptomatic stones of the lower calyces, who underwent ESWL, PNL and TNL from November 2010 to the present day...
June 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28629039/time-dependent-subcellular-structure-injuries-induced-by-nano-micron-sized-calcium-oxalate-monohydrate-and-dihydrate-crystals
#6
Xin-Yuan Sun, Kai Yu, Jian-Ming Ouyang
Comparative studies were conducted to investigate the time effect of cell injury induced by nano-sized (50nm) and micron-sized (10μm) calcium oxalate monohydrate (COM) and dihydrate (COD) crystals in African green monkey renal epithelial (Vero) cells. The effects of nano-/micron-sized COM and COD exposure on Vero cells were investigated by detecting the cell viability, cell morphology, LDH release, reactive oxygen species, mitochondrial membrane potential, cell cycle, and cell apoptosis, as well as the intracellular and extracellular crystal distribution...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28627733/response-of-renal-tubular-cells-to-differential-types-and-doses-of-calcium-oxalate-crystals-integrative-proteome-network-analysis-and-functional-investigations
#7
Arada Vinaiphat, Siripat Aluksanasuwan, Juthatip Manissorn, Suchitra Sutthimethakorn, Visith Thongboonkerd
We have previously identified changes in the cellular proteome of renal tubular cells induced by low-dose (100 μg/ml) and high-dose (1,000 μg/ml) calcium oxalate monohydrate (COM) and dihydrate (COD) crystals. However, the functional significance of such expression data remained unclear. In this study, we performed comparative analyses and functional investigations of four proteomic datasets to define potential mechanisms by which renal tubular cells responded to differential crystal types and doses. The data showed that high-dose induced greater changes than low-dose, whereas COM induced more changes than COD...
June 19, 2017: Proteomics
https://www.readbyqxmd.com/read/28627398/stones-first-a-gas-pyelo-nephroscopy-strategy-for-laparoscopic-pyeloplasty-and-renal-stone-extraction
#8
C Kouriefs, F Georgiades, P Grange
OBJECTIVE: To report our experience on gas endoscopy as the first step of pelvi-ureteric junction (PUJ) obstruction repair when complicated by nephrolithiasis. MATERIALS AND METHODS: Stone formation due to urine stasis is a known complication PUJ obstruction and an indication for its surgical repair. The undisputed results of the Anderson-Hynes dismembered pyeloplasty make it a quasi-gold standard; however, the identification and extraction of calyceal stones through the laparoscopic route can be challenging...
June 13, 2017: Urology
https://www.readbyqxmd.com/read/28623397/different-effects-of-%C3%AE-linolenic-acid-gla-supplementation-on-plasma-and-red-blood-cell-phospholipid-fatty-acid-composition-and-calcium-oxalate-kidney-stone-risk-factors-in-healthy-subjects-from-two-race-groups-with-different-risk-profiles-pose-questions-about
#9
Allen L Rodgers, Dalielah Jappie-Mahomed, Paul J van Jaarsveld
Fatty acid (FA) composition of phospholipids in plasma and red blood cells (RBC) can influence calciuria, oxaluria and renal stone formation. In this regard, the ratio of arachidonic acid (AA) and its precursor linoleic acid (LA) appears to be important. Administration of γ-linolenic acid (GLA) has been shown to increase the concentration of dihomo-gamma linoleic acid (DGLA) relative to AA indicating that it may attenuate biosynthesis of the latter. Such effects have not been investigated in race groups having difference stone occurrence rates...
June 16, 2017: Urolithiasis
https://www.readbyqxmd.com/read/28621639/outcome-of-the-double-j-stent-placement-in-pediatric-kidney-transplant-a-single-center-experience
#10
Hakan Sözen, Onur Özen, Kibriya Fidan, Oğuz Söylemezoğlu, Aydın Dalgıç
OBJECTIVES: Double J stent placement at kidney transplant may reduce stenosis or leakage complication rates. However, placement may also increase risk for early urinary tract infection (ie, < 3 mo after transplant). In children, the usefulness of double J stent placement is not well defined. MATERIALS AND METHODS: We analyzed retrospective data from children who received transplants at the Gazi University Transplantation Center and Pediatric Nephrology (Ankara, Turkey) for outcomes related to double J stents...
June 16, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28616648/protective-effect-of-dietary-polyphenol-caffeic-acid-on-ethylene-glycol-induced-kidney-stones-in-rats
#11
Fauzia Yasir, Atia-Tul- Wahab, M Iqbal Choudhary
Dietary polyphenol caffeic acid (1) has been reported for various pharmacological activities. The aim of the current study was to investigate the effect of caffeic acid (1) on ethylene glycol-induced renal stones in rats. For the study, male Wistar rats were divided into seven groups; normal, pathological, and standard drug controls, and preventive and curative groups. Normal control group received drinking water for 8 weeks. Pathological, standard drug, preventive, and curative groups received 0.75% ethylene glycol in drinking water for the induction of calcium oxalate stone formation, along with the regular diet...
June 14, 2017: Urolithiasis
https://www.readbyqxmd.com/read/28616590/combination-of-extracorporeal-shockwave-lithotripsy-and-ureteroscopy-for-large-staghorn-calculi-in-a-pediatric-patient-case-report
#12
Austin J Schults, Wanjian Jia, Michael C Ost, Siam Oottamasathien
Background: Extracorporeal shockwave lithotripsy (SWL) is a procedure commonly performed to treat nephrolithiasis, with promising results in pediatric patients. However, increasing renal calculi size is directly related to worsening stone-free rates. There are few reports in the literature of >2-cm staghorn calculi that expound on the exact mechanism of treatment in the pediatric population. Case Presentation: We present a case report of a 3-year-old boy who presented with a large 3-cm staghorn calculi effectively treated with one session of SWL followed by a planned staged ureteroscopy for definitive treatment...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/28614270/computer-tomography-urography-assisted-real-time-ultrasound-guided-percutaneous-nephrolithotomy-on-renal-calculus
#13
You-Qiang Fang, Jie-Ying Wu, Teng-Cheng Li, Hao-Feng Zheng, Guan-Can Liang, Yan-Xiong Chen, Xiao-Bin Hong, Wei-Zhong Cai, Zhi-Jun Zang, Jin-Ming Di
This study aimed to assess the role of pre-designed route on computer tomography urography (CTU) in the ultrasound-guided percutaneous nephrolithotomy (PCNL) for renal calculus.From August 2013 to May 2016, a total of 100 patients diagnosed with complex renal calculus in our hospital were randomly divided into CTU group and control group (without CTU assistance). CTU was used to design a rational route for puncturing in CTU group. Ultrasound was used in both groups to establish a working trace in the operation areas...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28613207/comparison-of-ultra-mini-percutaneous-nephrolithotomy-and-micro-percutaneous-nephrolithotomy-in-moderate-size-renal-stones
#14
Tolga Karakan, Muhammet Fatih Kilinc, Murat Bagcioglu, Omer Gokhan Doluoglu, Yildiray Yildiz, Arif Demirbas, Selen Bozkurt, Berkan Resorlu
OBJECTIVE: We aimed to compare the success and complications of ultra-mini percutaneous nephrolithotomy and micro-percutaneous nephrolithotomy techniques. METHODS: We retrospectively analyzed data from 74 patients. Moderate-size stones were included in the study. RESULTS: Forty-two patients were included in MPNL, and 32 patients were included in UPNL groups. Among our patient cohort, 42 (56.7%)were males, and 32 (43.3%) were females. The mean age of the patients was 40±13...
June 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28613206/-evolution-from-percutaneous-nephrolithotomy-to-mini-pcnl-in-supine-position-on-the-treatment-of-complex-renal-calculi-feasibility-study
#15
Fernando Ramón de Fata-Chillón, Helena Gimbernat-Díaz, Cristina Redondo-Redondo, Elisa Meilán-Hernández, Erika Mateo-Martínez
OBJECTIVES: Mini-PCNL is a potentially less invasive technique than standard percutaneous nephrolithotomy (PCNL). We present our experience and results comparing both approaches in large burden complex renal calculi. METHODS: Prospective non randomized study comparing PCNL (24/26F nephroscope; Group A) and Mini-PCNL (15/18F; Group B) perioperative and postoperative results, in 40 (20 each group) consecutive patients between 2013 and 2014. We analyze demographic data, hemoglobin drop, urine culture, stone characteristics, operative time, puncture, number and size of the tract, disintegration energy sources, nephrostomy placement, hospital stay, stone free rate and Clavien-Dindo complications...
June 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28613205/-renal-lithiasis-can-we-predict-the-need-for-retreatment-in-retrograde-intrarenal-surgery-rirs
#16
José Luis Palmero-Martí, Jorge Panach-Navarrete, Lorena Valls-González, Amparo Ganau-Ituren, Juan Carlos Pastor-Lence, Antonio Benedicto-Redón
OBJECTIVES: To analyze the predictive factors for retreatment in RIRS to achieve complete lithiasis resolution. METHODS: Retrospective comparative study analyzing 298 cases of RIRS performed in our center over a 3 year period. The cohort was divided in two groups: Resolution in one operation or more than one, evaluating homogeneicity for age and gender. We compared the folowing variables: Hounsfield units, body mass index (BMI), number of stones, size, (on the case of multiple stones, larger stone size), side, location in the kidney and stone biochemistry...
June 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28611874/ultrasound-vs-computed-tomography-for-severity-of-hydronephrosis-and-its-importance-in-renal-colic
#17
Megan M Leo, Breanne K Langlois, Joseph R Pare, Patricia Mitchell, Judith Linden, Kerrie P Nelson, Cristopher Amanti, Kristin A Carmody
INTRODUCTION: Supporting an "ultrasound-first" approach to evaluating renal colic in the emergency department (ED) remains important for improving patient care and decreasing healthcare costs. Our primary objective was to compare emergency physician (EP) ultrasound to computed tomography (CT) detection of hydronephrosis severity in patients with suspected renal colic. We calculated test characteristics of hydronephrosis on EP-performed ultrasound for detecting ureteral stones or ureteral stone size >5mm...
June 2017: Western Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28611171/pitfalls-of-the-duplex-system-the-mystery-of-the-missing-stone
#18
Donald Kudakwashe Nyanhongo, Satpal Antil, Syed Nasir
A duplex ureter constitutes about 1% of the renal tract anomalies.A 39-year-old man presented with a 4-week history of left loin pain and microscopic haematuria. Investigation with a non-contrast CT KUB revealed a 6 mm non-obstructing calculus in the left distal ureter.Left ureteroscopy and lithotripsy was planned. However, ureteroscopy failed to identify the calculus. A double J ureteric stent was left in situ and the procedure abandoned in favour of further assessment with a CT urogram. Imaging surprisingly showed a left duplex ureter with the calculus in the non-stented ureter...
June 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28609114/do-incidental-hyperechoic-renal-lesions-measuring-up-to-1-cm-warrant-further-imaging-outcomes-of-161-lesions
#19
Ankur M Doshi, Abimbola Ayoola, Andrew B Rosenkrantz
OBJECTIVE: The purpose of this study was to determine the outcomes of hyperechoic renal lesions measuring 1 cm or less at ultrasound examination. MATERIALS AND METHODS: This retrospective study included 161 hyperechoic renal lesions measuring 1 cm or less at ultrasound that were evaluated with follow-up ultrasound, CT, or MRI. Follow-up imaging examinations were reviewed to assess for definitive lesion characterization or size stability. RESULTS: Follow-up included 11 unenhanced CT, 39 contrast-enhanced CT, 52 unenhanced and contrast-enhanced CT, two unenhanced MRI, 50 unenhanced and contrast-enhanced MRI, and 87 ultrasound examinations...
June 13, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28608734/endovisually-guided-zero-radiation-ureteral-access-sheath-placement-during-ureterorenoscopy
#20
Seyed Mohammad Kazem Aghamir, Alborz Salavati
BACKGROUND: Almost all endourologic procedures use fluoroscopic imaging in some steps, which exposes both the patient and the surgical team to considerable amounts of radiation. Primary reports on results of a simple direct visual endoscopic access sheath placement technique which does not use fluoroscopy at all are presented. MATERIAL AND METHODS: First a semi-rigid ureteroscopy was carried out up to the renal pelvis, then the access sheath (36 cm, 11/13 Fr) without the obturator was placed over a 7...
June 13, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
keyword
keyword
10272
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"