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Relevant bibliographies by topics / Renal stone

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Academic literature on the topic 'Renal stone'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 June 2025

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Journal articles on the topic "Renal stone"

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Kim, Myung Ki, Jae Hyung You, and Young Gon Kim. "Flexible ureteroscopic renal stone extraction during laparoscopic ureterolithotomy in patients with large upper ureteral stone and small renal stones." Canadian Urological Association Journal 8, no. 9-10 (2014): 591. http://dx.doi.org/10.5489/cuaj.1806.

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Introduction: We describe laparoscopic ureterolithotomy with renal stone extraction using a stone basket under flexible ureteroscopy. We describe its efficacy through a laparoscopic port and a ureterotomy site in patients with large upper ureteral stone and small renal stones.Methods: Between January 2009 and February 2012, we performed laparoscopic ureterolithotomy with renal stone extraction using a stone basket under flexible ureteroscopy in 11 patients who had upper ureteral and renal stones. The retroperitoneal approaches were used in all patients using 3-4 trocars.Results: All procedures were performed successfully without significant complications. Mean operative time was 78.5 minutes (range: 52-114 minutes). The mean size of ureteral stone was 19.91 mm (range: 15-25 mm). In addition, 25 renal stones (mean size 7.48 mm, range: 2-12 mm) were removed from 11 patients. The mean length of hospital stay was 3.5 days (range: 2-6 days).Conclusions: Laparoscopic ureterolithotomy with renal stone extraction using a stone basket under flexible ureteroscopy can be considered one of treatment modalities for patients with large upper ureteral stones accompanied by renal stones who are indicated in laparoscopic ureterolithotomy.

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Hasnain, Muhammad Ali Zul, Malik Muhammad Khalid, Saima Perveen, and Saima Perveen. "RENAL COLIC PATIENT." Professional Medical Journal 22, no. 01 (2015): 040–48. http://dx.doi.org/10.29309/tpmj/2015.22.01.1410.

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Objectives: To compare Un-enhanced Helical Computed Tomography (UHCT),Ultrasonography (US) + Plain X-Ray and Intravenous Urography (IVU) in the evaluation ofpatients with suspected renal colic. Subjects: In 70 patients with renal colic US, plain X-ray,IVU and UHCT were performed to demonstrate urinary stones and other relevant pathologies.Patients were then followed-up to stone passage or removal, and the course of clinicalsymptoms were noted. Results: 57 patients had ureteral stones based on stone passageor removal. 13 patients did not have ureteral stones based on failure to recover a stone,disappearance of symptoms, and diagnosis unrelated to stone disease. Un-enhanced helicalcomputed tomography was found to be the most useful method in the demonstration of ureteralstones with a sensitivity of 97%. Reformatted images clearly depicted the intraureteral locationof stones in most cases. Spiral UHCT showed renal calculi in 15 patients, USG + KUB in 12 andIVU in 9 patients. Conclusions: Non-contrast axial and reformatted spiral CT (UHCT) imageswere found superior to USG + KUB and IVU in the depiction of ureteral and renal calculi.Reformatted images offer a good alternative to IVU in problematic cases.

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Cakıroglu, Basri, Akif Nuri Dogan, Tuncay Tas, Ramazan Gozukucuk, and Bekir Sami Uyanik. "A Case of Recurrent Renal Aluminum Hydroxide Stone." Case Reports in Urology 2014 (2014): 1–3. http://dx.doi.org/10.1155/2014/212314.

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Renal stone disease is characterized by the differences depending on the age, gender, and the geographic location of the patients. Seventy-five percent of the renal stone components is the calcium (Ca). The most common type of the stones is the Ca oxalate stones, while Ca phosphate, uric acid, struvite, and sistine stones are more rarely reported. Other than these types, triamterene, adenosine, silica, indinavir, and ephedrine stones are also reported in the literature as case reports. However, to the best of our knowledge, aluminum hydroxide stones was not reported reported before. Herein we will report a 38-years-old woman with the history of recurrent renal colic disease whose renal stone was determined as aluminum hydroxide stone in type. Aluminum mineral may be considered in the formation of kidney stones as it is widely used in the field of healthcare and cosmetics.

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Kakizaki, Hidehiro, Katsuya Nonomura, Tomohiko Koyanagi, Masami Nantani, Kotaro Taniguchi, and Tadashi Matsuno. "Endourological Evaluation and Management of Leukoplakia of the Renal Pelvis." Diagnostic and Therapeutic Endoscopy 2, no. 3 (1996): 167–74. http://dx.doi.org/10.1155/dte.2.167.

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Since August 1989, we have seen 4 patients with leukoplakia of the renal pelvis associated with a longstanding renal stone. In 2 of them, excretory or retrograde pyelography revealed multiple filling defects in the left renal pelvis as well as a renal stone, although urine cytological examination was negative. One of the other 2 patients underwent extracorporeal shock wave lithotripsy (ESWL) for the renal stone, but this was not followed by the passage of stone fragments. The renal stone in the remaining patient was associated with staghorn calculi. For stone extraction as well as endoscopic evaluation of the intrapelvic lesion, percutaneous nephroscopy was performed. A small to large amount of tissue-like white debris in sheets characteristic of leukoplakia was found in the renal pelvis with stones embedded in it and was removed directly by forceps or suction and then by irrigating with saline. We propose that 1) the endourological approach should be recommended for patients with renal pelvic lesions associated with longstanding renal stones or for patients who show difficulty in passing stone fragments after ESWL and 2) this entity of leukoplakia should be kept in mind for the differential diagnosis of renal pelvic lesions associated with renal stones.

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Kaya, Coskun, Yurdaer Kaynak, Aral Karabag, and Aykut Aykaç. "The Predictive Role of Abdominal Fat Parameters and Stone Density on SWL Outcomes." Current Medical Imaging Formerly Current Medical Imaging Reviews 16, no. 1 (2020): 80–87. http://dx.doi.org/10.2174/1573405614666180927112127.

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Background: Our aim was to detect the role of radiological abdominal fat parameters by tomography and stone density by plain X-ray on extracorporeal Shock Wave Lithotripsy (SWL) stone-free rate. Methods: The patients who had undergone SWL for a single opaque renal stone < 2 cm in diameter and proximal ureteric stone < 1 cm in diameter were collected retrospectively. The characteristics of patients and stones were recorded. The stone attitude, HU, abdominal fat parameters, paraperirenal fat area, perirenal infiltration and severity of hydronephrosis with pre-treatment Non- Contrast Computed Tomography (NCCT) and stone density with radiography were evaluated by a radiologist. Four weeks after the last SWL; all patients were evaluated by plain X-ray and categorized as Stone Free (SF) and Residual Fragment (RF) group. Results: 51 patients with renal stones and 88 patients with proximal ureteral stones were included in the study. 24 (47%) and 63 (71%) patients were classified as SFfor renal and ureteral stones respectively. Only stone size was an independent predictor for stone-free rates after SWL for renal and proximal ureteral stones on multivariate analysis. The Receiver Operating Characteristic (ROC) curves for renal calculi revealed that creatinine level, stone size, stone attitude, Houns-Field Unit (HU) and Skin-to-Stone Distance (SSD) were the predictive factors for the SWL outcome (p< 0.05). The ROC curve for ureteral calculi demonstrated that HU, stone size and attitude were the predictive factors (p< 0.05). Conclusion: All abdominal fat parameters and the stone density were not related to SWL failure. A large follow-up with more patients is essential to confirm the role of radiological parameters on the outcome of SWL.

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El-Assmy, Ahmed, Ahmed R. El-Nahas, Mohamed E. Abo-Elghar, Ibrahim Eraky, Mahmoud R. El-Kenawy, and Khaled Z. Sheir. "Predictors of Success after Extracorporeal Shock Wave Lithotripsy (ESWL) for Renal Calculi Between 20—30 mm: A Multivariate Analysis Model." Scientific World JOURNAL 6 (2006): 2388–95. http://dx.doi.org/10.1100/tsw.2006.370.

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The first-line management of renal stones between 20—30 mm remains controversial. The Extracorporeal Shock Wave Lithotripsy (ESWL) stone-free rates for such patient groups vary widely. The purpose of this study was to define factors that have a significant impact on the stone-free rate after ESWL in such controversial groups. Between January 1990 and January 2004, 594 patients with renal stones 20—30 mm in length underwent ESWL monotherapy. Stone surface area was measured for all stones. The results of treatment were evaluated after 3 months of follow-up. The stone-free rate was correlated with stone and patient characteristics using the Chi-square test; factors found to be significant were further analyzed using multivariate analysis.Repeat ESWL was needed in 56.9% of cases. Post-ESWL complications occurred in 5% of cases and post-ESWL secondary procedures were required in 5.9%. At 3-month follow-up, the overall stone-free rate was 77.2%. Using the Chi-square test, stone surface area, location, number, radiological renal picture, and congenital renal anomalies had a significant impact on the stone-free rate. Multivariate analysis excluded radiological renal picture from the logistic regression model while other factors maintained their statistically significant effect on success rate, indicating that they were independent predictors. A regression analysis model was designed to estimate the probability of stone-free status after ESWL. The sensitivity of the model was 97.4%, the specificity 90%, and the overall accuracy 95.6%.Stone surface area, location, number, and congenital renal anomalies are prognostic predictors determining stone clearance after ESWL of renal calculi of 20—30 mm. High probability of stone clearance is obtained with single stone ≤400 mm2 located in renal pelvis with no congenital anomalies. Our regression model can predict the probability of the success of ESWL in such controversial groups and can define patients who would need other treatment modality.

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Kati, Bulent, Ergin Kalkan, Eyyup Sabri Pelit, Ismail Yagmur, and Halil Çiftçi. "Do dental calculi predict the presence of renal stones?" Archivio Italiano di Urologia e Andrologia 90, no. 3 (2018): 159–62. http://dx.doi.org/10.4081/aiua.2018.3.159.

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Objective: Pathological calcifications that occur in various parts of the body may cause stone formation over time. The structure of these stones is similar in many regions of the body. We have studied the relationship between dental calculi and kidney stones. Material and methods: A total of 183 patients with dental stone complaints or dental calculi were included between April and August 2016 in the Cagri Dental Hospital, Elazig, Turkey. Patients were evaluated with regard to a urinary tract ultrasonography, urinalysis, oral hygiene, and stone and surgical disease history. All information was statistically investigated. Results: The age of the patients in the kidney stones group was significantly higher than the non-kidney stone patients (p < 0.05). In the group with kidney stones, the percentage of dental calculus formation was significantly higher than the group without stones (p < 0.05). In the groups with and without kidney stones, dental stone recurrence rates did not differ significantly (p < 0.05). Urinary pH was significantly lower in the group with stones than the group without stones (p < 0.05). Conclusions: During a physical examination, the formation of a visible stone, such as a dental calculus, may be an indicator of other types of stones, such as kidney stones, and this should be further investigated.

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Joshi, HN, Rm Karmacharya, R. Shrestha, B. Shrestha, IJ De Jong, and RKM Shrestha. "Outcomes of Extra Corporeal Shock Wave Lithotripsy in Renal and Ureteral Calculi." Kathmandu University Medical Journal 12, no. 1 (2015): 51–54. http://dx.doi.org/10.3126/kumj.v12i1.13639.

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Background Since the introduction in early 1980s, Extracorporeal Shockwave Lithotripsy (ESWL) became the accepted first line treatment modality for renal and upper ureteric stones. It is simple, safe and effective noninvasive procedure which can be performed without anaesthesia in outpatient basis. The objective of this study was to determine the efficacy of ESWL to achieve complete stone clearance in the patients with different sizes of renal and upper ureteric stones.Objective The aim of this study was to assess the outcome, efficacy and complications of ESWL in the treatment for renal and ureteric stones in terms of the site and the size of the stone in the patients presented at Dhulikhel Hospital Kathmandu University Hospital.Method In this prospective study a total of 430 (214 renal and 216 ureteric) cases of urinary stone disease in 257 male and 173 female patients treated by ESWL at Dhulikhel Hospital, Kathmandu University Teaching Hospital during time period of May 2010 to June 2012 were included. Data of patients with renal and ureteric stones were evaluated for stone site, size, and number of sessions. Data were analyzed using spss 13.0.Result Out of 430 cases, the overall stone free rate in after 1st session was 341 (79.3%) at one month and in three months follow up (3 sessions) it was increased up to 414 (96.3%). In 16 (3.7%) patients treatment was failed. Average size of the stone was 12.24 (SD± 3.65) mm.Stone free rate was 154 (72%) in the case of renal and 187 (86.6%) in the case of ureteric stones in first session. In three months follow up (three sessions) it was 204 (95.4%) and 210 (97.2%) respectively for renal and ureteric stones. In relation to size the stone free rate in <10mm, 10-15mm and > 15mm was 97%, 97% and 90%.Conclusion ESWL is the first line preferred choice for renal and upper ureteric stones which provides the maximum stone free rate in the case of stone size smaller than 1.5cm.Kathmandu University Medical Journal Vol.12(1) 2014: 51-54

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Hossain, TMS, M. Asaduzzaman, MN Uddin, MH Rahman, MU Jahan, and AKMZI Bhuiyan. "Percutaneous nephrolithotomy-a versatile technique for both simple and complex renal stone." Bangladesh Medical Research Council Bulletin 39, no. 3 (2014): 99–103. http://dx.doi.org/10.3329/bmrcb.v39i3.20308.

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Percutaneous Nephrolithotomy is currently the preferred first line treatment for simple & complex renal calculi. The technique also being used increasingly for smaller stones that have failed ESWL. Aim of the study is to share our experience in PCNL in course of time. This study was conducted from January 2009 to December 2012, 131 patients with 142 renal units of 5-75 yrs of age, PCNL were performed in NIKDU, BSMMU & JBFH. Stone were classified into simple (isolated renal pelvis or isolated calyceal stones) or complex (partial or complete staghorn stones, renal pelvic stone with accompanying calyceal stones). The stone size was 1.5-5cm approximately. We asses our initial puncture technique, need for multi-tract, supra 12th rib access, stone free rate, operative duration, postoperative complication, number of transfusion and hospital stay. Operative durations were 60 min -180 minutes. Puncture technique improved in course of time. 14 patients need multi-puncture and tract, all are supra 12th access. Out of 142 renal units 120 (83%) were stone free after first procedure, another 22 need and auxiliary procedure, (5 2nd look PCNL, 6 URS, 11 ESWL) to become stone free result in a 95% stone free rate. Complications occurred in 17 procedures which dealt accordingly. This study revealed PCNL is an effective, versatile safe and cosmetically acceptable procedure for all age groups in simple and complex renal stone. DOI: http://dx.doi.org/10.3329/bmrcb.v39i3.20308 Bangladesh Med Res Counc Bull 2013; 39: 99-103

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Naznin, Lubna, Debashish Saha, Md Jahangir Chowdhury, Yasmin Akter, Most Sarmin Sultana, and Ashif Chowdhury. "Composition of Renal Stone– An experience at Armed Forces Institute of Pathology." Journal of Armed Forces Medical College, Bangladesh 12, no. 2 (2016): 21–25. http://dx.doi.org/10.3329/jafmc.v12i2.41080.

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Introduction: In Asia the stone belt has been reported to stretch across our neighbouring countries Pakistan, India, Myanmar etc signifies a higher incidence of renal stone disease in Bangladesh. Objective: To determine the pattern of chemical composition of renal stones by semi-quantitative technique in patients presented to Armed Forces Institute of Pathology (AFIP) and to evaluate the predominant constituent present in them. Materials and Methods: This descriptive study was conducted at Armed Forces Institute of Pathology (AFIP), Chemical pathology department from October 2013 to October 2014. Renal stones of 37 Urolithiasis patients were analyzed chemically, using DiaSys analysis kit, employing titrimetric method for estimation of calcium and colorimetric method for Oxalate, Ammonium, Phosphate, Magnesium, Uric Acid and Cystine. Concentration of each individual component then was expressed in percentage and used to interpret renal stone composition using the calculation scale. Results: Males were more prone to renal stone disease, having male to female ratio 5.2:1. Urinary stones occur in all age groups, in this study age ranged from 4 to 72 years with mean age 38.8±16.0 years and mostly affected was the working age group 21 to 50 years (70.2%). Mixed components (i.e. mixed stone) rather than a single component was the commonest type constituting 83.8% of all renal stones. The commonest mixed stone found was Calcium Oxalate with Apatite (41.9 %). Pure Calcium Oxalate was the 2nd most common (10.8%) variant followed by Struvite stones (5.4%). Cystine and Brushite were the least common renal stones in this study. Conclusion: Calcium Oxalate was the most predominant chemical component in renal stones (94.6%). More research is needed to assess the frequency, types, and correlation of renal stones with environmental, dietary and genetic factors in Bangladesh. Journal of Armed Forces Medical College Bangladesh Vol.12(2) 2016: 21-25

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Dissertations / Theses on the topic "Renal stone"

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Shafik, I. M. "Effects of magnesium infusion on renal calcium excretion." Thesis, University of Manchester, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379137.

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Saxby, Mark Fraser. "An analysis of the effects and effectiveness of medical and surgical treatments on the kidney." Thesis, Imperial College London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243308.

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Fedele, Fiammetta. "Acoustic sensing of renal stone fragmentation in extracorporeal shockwave lithotripsy." Thesis, University of Southampton, 2008. https://eprints.soton.ac.uk/63228/.

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This thesis describes the research carried out by the author on the exploitation of acoustic emissions detected during extracorporeal shockwave lithotripsy (a non-invasive procedure for the treatment of urinary stones) to develop a new diagnostic system. The work formed part of a research project on lithotripsy undertaken by the University of Southampton in collaboration with Guy's and St Thomas' NHS Foundation Trust (London) and a UK based company, Precision Acoustics Ltd (Dorchester). It takes to a clinical conclusion the proposition made by Leighton and Coleman in 1992 that it might be possible to build a sensor which would automatically exploit these passive acoustic emissions to monitor the efficacy of a lithotripsy treatment. The work, predominantly experimental, involved both in vitro and in vivo investigations. In particular, a first prototype diagnostic system (i.e. sensor plus analysis software) was developed and tested in vitro during trials which included the use of a novel cavitation sensor (on loan from the National Physical Laboratory, Teddington) and stone phantoms designed by the author. This initial system was, then, refined and tested during clinical trials that involved 130 patients. A preliminary trial on 51 patients aimed at refining the system and gathering knowledge on the features of emissions recorded in vivo to produce an on-line monitoring system. This trial was followed by other two trials that compared the output of the on-line acoustic system against the ‘gold standard’ X-Ray assessment of treatments outcomes. The former of these two trials involved 30 patients, and empirically defined the values of the key parameters (identified during the in vitro tests) that would be used as the basis of the diagnosis. In particular, a classification rule of treatments as being successful or unsuccessful was identified, and shown to agree significantly (kappa=0.95) with the ‘gold standard’ follow-up assessment. The latter trial tested the final system on 49 patients and confirmed an accurate treatment classification (kappa=0.94) in terms of the successful/unsuccessful criterion.

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Asselman, Marino. "Hyaluronan biology and regulation in renal tubular epithelial cells and its role in kidney stone disease." [S.l.] : Rotterdam : [The Author] ; Erasmus University [Host], 2008. http://hdl.handle.net/1765/13147.

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Rice, Sarah Jayne. "A translational approach to investigate the role of membrane transport proteins in the renal stone disease, cystinuria." Thesis, University of Newcastle upon Tyne, 2016. http://hdl.handle.net/10443/3201.

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In the kidney, unbound amino acids are freely filtered into the lumen of the nephron. For reabsorption to occur, they must be transported across the phospholipid bilayers of the tubular epithelium by selective transport systems. Mutations in these transport systems can lead to disease though a conferred lack of amino acid re-absorption. One such disease is cystinuria, caused by mutations in SLC3A1 and SLC7A9, which encode the two protein subunits of System b0,+, rBAT and b0,+AT, respectively. In healthy individuals System b0,+ mediates Na+- independent reabsorption of dibasic amino acids, and the cysteine dimer, cystine, in exchange for neutral amino acids. In cystinuric patients, these amino acids are not sufficiently reabsorbed causing a dibasic aminoaciduria and the precipitation of cystine crystals, leading to the formation of renal calculi. A cohort of cystinuric patients was recruited to the study, and both genes were screened for causal variants. A range of techniques was employed to enable the detection of small point mutations and large genomic rearrangements. Four novel missense variants were detected in SLC3A1. These were M465K, N254T, L416P and Y579D. In silico homology modeling of rBAT against the crystal structure of B. cereus oligo-1,6-glucosidase (PDB code 1UOK), predicted the location of these mutations in the extracellular domain of the protein. When rBAT cRNA was injected into Xenopus oocytes, uptake of the prototypical System b0,+ substrate [3H]arginine was observed, following the association of human rBAT with an endogenous oocyte light chain. A series of techniques was optimised to allow the characterisation of FLAG-tagged rBAT function and expression in oocytes, 1-6 days postinjection of cRNA. Mutations in rBAT lead to a mis-folding of the protein and its early degradation in the ER, preventing successful trafficking of the System b0,+ heterodimer to the renal epithelial membrane. This aberrant trafficking leads to reduced rBAT expression and System b0,+ activity in oocytes. Functional characterisation of the novel mutant proteins led to a decrease in the Vmax of [3H]arginine transport. Over-expression of rBAT in oocytes apparently overcomes the defect and leads to a recovery of function over time. However, [3H]arginine uptake in M465Kexpressing oocytes was still lower than that observed with wild-type rBAT even at 6 days postinjection. These data were supported by immunofluorescent detection of rBAT and the mutant proteins at the plasma membrane of oocytes. Western blotting of total membrane proteins from oocytes expressing mutated rBAT showed decreased total protein, suggestive of an increased rate of degradation associated with the pathogenic variants. An increased understanding of the effect of these mutations on the biogenesis of rBAT will contribute to the identification of novel therapeutic targets in the treatment of cystinuria.

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Babovic, Medina, and Dana Mohammed. "Lågdos-protokolls betydelse vid utredning av misstänkt njursten med datortomografi : En systematisk litteraturstudie." Thesis, Örebro universitet, Institutionen för hälsovetenskaper, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-84590.

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Bakgrund: Stenar i njurar respektive urinvägar är ett växande problem både i Sverige samt i hela världen. Anledningen till den ökade incidensen av njursten anses vara oklar, däremot kan ändrade kostvanor förslagsvis vara bidragande orsak. Datortomografi (DT) anses vara förstahandsalternativet vid utredning av misstänkta njurstenar där DT har bra förmåga att kartlägga antalet stenar, bestämma storlek samt lokalisera stenarna. Tidigare forskning visar att ultra-lågdos samt lågdos har höga färdigheter i sensitivitet samt specificitet. Däremot avkastas jämförelser av detektering av stenar med standarddos DT. Syfte: Syftet med denna studie var att utforska om hur exponeringen skiljer sig med användandet av låg-dos protokoll i jämförelse med standardprotokoll. Utforska om hur mycket stråldosen kunde sänkas med lågdosprotokoll samt förmågan att detektera stenar. Fokus kommer att ligga på stråldosreducering samt specificitet och sensitivitet i utredning för njurstensmisstanke med datortomografi. Metod: Denna litteraturstudie använder sig av databaser som Pubmed för eftersökningen av vetenskapliga artiklar. Materialet samlades in och bearbetades i enlighet med Forsberg & Wengströms riktlinjer. Resultat: Resultatet till denna studie baseras på 10 valda artiklar från databasen Pubmed. Resultatet presenteras i tre underkategorier, storlek av sten, exponering samt sensitivitet/specificitet. Konklusion: Lågdosprotokoll kunde konkurrera med standardprotokoll gällande detektion av stenar, stenar under 3 mm kan vara svåra att detektera med lågdosprotokoll. Stråldosen reducerades med mer än hälften och bibehöll samtidigt tillräckligt bra kvalitet. Patienter bestrålas med mer än dubbelt så mycket i effektiv dos (ED) med användning av standardprotokoll än med låg-dos protokoll.

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Marchini, Giovanni Scala. "Influência do cálculo ureteral silencioso sobre a função renal antes e após o tratamento." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/5/5153/tde-04022016-101154/.

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Sua história natural e o real risco à função renal foram pouco estudados. Objetivo: Avaliar o impacto do cálculo ureteral silencioso sobre a função renal antes a após o tratamento, procurando por fatores preditivos de uma melhor evolução. Material e Método: O cálculo ureteral silencioso foi definido como aquele em que o paciente não apresentava nenhum sintoma subjetivo ou objetivo a ele relacionado. Os pacientes com cálculo ureteral silencioso foram prospectivamente incluídos no estudo, sendo avaliados com 99mTc-DMSA, creatinina sérica (Cr), ritmo de filtração glomerular (RFG) e ultrassonografia (USG) no pré-tratamento, três e 12 meses após o mesmo. Pacientes que receberam tratamento fora de nossa instituição e aqueles com avaliação perioperatória incompleta foram excluídos. A análise estatística incluiu os testes de ANOVA, Qui-quadrado/Fisher, e regressão logística/múltipla. O nível de significância foi estabelecido em p<0,05. Resultados: Entre jan/2006 e jan/2014, 26 pacientes com cálculo ureteral silencioso, correspondendo a 2,1% de todos os cálculos ureterais tratados, preencheram os critérios de inclusão do estudo. Treze pacientes eram do sexo feminino, com idade média de 59,3 ± 11,3 anos. O diagnóstico do cálculo foi relacionado a uma causa urológica em 14 (53,8%) casos. O diâmetro e densidade média dos cálculos era de 11,8 ± 2,8 mm e 1201 ± 272 UH, respectivamente. Apenas dois pacientes não apresentavam hidronefrose ao USG inicial e a espessura média do parênquima renal era 10,7 ± 4,1 mm. Os valores médios pré-operatórios de Cr, RFG e 99mTc-DMSA foram 1,24 ± 0.87 mg/dl, 72,5 ± 25.2 mL/min e 33,4 ± 16,7%, respectivamente. Vinte (77%) pacientes apresentavam 99mTc-DMSA < 45% no exame inicial. Regressão múltipla revelou que idade (p=0,041) e espessura do parênquima renal (p=0,001) predizem o valor do 99mTc-DMSA inicial. Quando comparados com os valores pré-operatórios, a Cr (p=0,89), o RFG (p=0,48) e a função renal ao 99mTc-DMSA (p=0,19) permaneceram inalterados com três e 12 meses após o tratamento. A hidronefrose apresentou melhora três meses após o tratamento (p < 0,01), mas manteve-se inalterada no período entre três e 12 meses (p=0,06). Nenhuma variável pré-operatória foi capaz de prever uma variação > 5% do 99mTc-DMSA entre pré e pós-operatório, sendo que o tamanho do cálculo (p=0,12) e tempo para tratamento (p=0,15) tiveram influência marginal. Conclusão: O cálculo ureteral silencioso está associado à diminuição da função renal e algum grau de hidronefrose já ao diagnóstico. Idade, espessura do parênquima renal e grau de hidronefrose predizem o valor inicial do 99mTc-DMSA. Enquanto a hidronefrose regride após a remoção do calculo, a função renal se mantém inalterada. Nenhum fator conseguiu predizer significativamente a evolução da função renal ao 99mTc-DMSA doze meses após o tratamento<br>Introduction: Ureteral stones may be asymptomatic in 0.3-5.3% of patients. The natural history and the disease influence on renal function have been poorly studied. Objective: to evaluate the impact of silent ureteral stone on renal function before and after treatment, searching for predictive factor of better outcomes. Material and Method: A ureteral stone was defined as silent if the patient had no subjective/objective symptoms related to the calculus. Patients with a silent ureteral stone were prospectively enrolled in the study. Patients were evaluated with 99mTc-DMSA scintigraphy, serum creatinine (Cr), Cr clearance (CrCl) and ultrasound (USG) pre and post-operatively on months three and 12. Patients treated outside our institution or with incomplete perioperative evaluation were excluded. ANOVA, Chi-square/Fisher test, and regression analysis were used. Significance was set at p < 0.05. Results: Between Jan/06-Jan/14, 26 patients with silent ureteral stones met our inclusion criteria, comprising 2.1% of all ureteral stones treated at our institution. Half of patients were female, mean age was 59.3 ± 11.3 years-old. Stone diagnosis was related to a urological cause in 14 (53.8%) cases. Mean stone diameter and density were 11.8 ± 2.8 mm and 1201 ± 272 HU, respectively. Only two patients had no hydronephrosis at initial USG evaluation and mean renal parenchyma thickness was 10.7 ± 4.1mm. Mean preoperative Cr, CrCl and 99mTc-DMSA were 1.24 ± 0.87 mg/dL, 72.5 ± 25.2 mL/min and 33.4 ± 16.7%, respectively. Twenty (77%) patients had 99mTc-DMSA < 45% at initial examination. Multiple regression revealed age (p=0.041) and renal parenchyma thickness (p=0.001) to predict initial 99mTc-DMSA. When compared to preoperative values, Cr (p=0.89), CrCl (p=0.48) and 99mTc-DMSA (p=0.19) remained unaltered three and 12 months postoperatively. Hydronephrosis improved from before to three months after treatment (p < 0.01), but remained unchanged from three to 12 months (p=0.06). No preoperative variable was able to predict a > 5% variation on 99mTc-DMSA from pre to postoperative periods, though stone size (p=0.12) and time to treatment (p=0.15) had a marginal influence. Conclusion: Silent ureteral stones are associated with decreased renal function and hydronephrosis already at diagnosis. Age, renal parenchyma thickness and degree of hydronephrosis predict initial 99mTc-DMSA. Hydronephrosis tends to diminish after stone removal, while renal function remains stable. No preoperative factor significantly predicted renal function progression twelve months postoperatively

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Theka, Takalani P. "Studies of genetic, gastrointestinal, renal and dietary factors in white and black South African subjects as a possible key to understanding the relative absence of calcium oxalate kidney stone disease in the black population." Doctoral thesis, University of Cape Town, 2009. http://hdl.handle.net/11427/6287.

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The incidence of urolithiasis in South Africa's black population is extremely rare «1%) while in the white population it is similar to that of western countries (-15%). The present thesis was aimed at shedding more light on the complex nature of the physicochemical, biochemical and physiological mechanisms in black South Africans which provide this group with a natural protection against urolithiasis in contrast to their white compatriots. Four studies comprise this thesis.

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McSorley, Anita D. "Renal stones in adults with cystic fibrosis." Thesis, University of Manchester, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.509862.

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Cho, Jae-Man. "Rosetta stones : deciphering the real /." Online version of thesis, 2007. http://hdl.handle.net/1850/6174.

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Books on the topic "Renal stone"

1

Pak, Charles Y. C., ed. Renal Stone Disease. Springer US, 1987. http://dx.doi.org/10.1007/978-1-4613-2069-2.

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Howell, Peter. The effect of urinary bile acid excretion on renal stone formation. University of Salford, 1994.

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Annual International Urolithiasis Research Symposium (1st 2006 Indianapolis, Ind.). Renal stone disease: 1st Annual International Urolithiasis Research Symposium, Indianapolis, Indiana, 2-3 November, 2006. Edited by Evan Andrew P, Lingemen James E, and Williams James C. Jr. American Institute of Physics, 2007.

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International Urolithiasis Research Symposium (2nd 2008 Indianapolis, Ind.). Renal stone disease 2: 2nd Annual International Urolithiasis Research Symposium, Indianapolis, Indiana, 17-18 April, 2008. Edited by Evan Andrew P and International Kidney Stone Institute (U.S.). American Institute of Physics, 2008.

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International Urolithiasis Research Symposium (2nd 2008 Indianapolis, Ind.). Renal stone disease 2: 2nd Annual International Urolithiasis Research Symposium, Indianapolis, Indiana, 17-18 April, 2008. Edited by Evan Andrew P and International Kidney Stone Institute (U.S.). American Institute of Physics, 2008.

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P, Evan Andrew, and International Kidney Stone Institute (U.S.), eds. Renal stone disease 2: 2nd Annual International Urolithiasis Research Symposium, Indianapolis, Indiana, 17-18 April, 2008. American Institute of Physics, 2008.

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Compestine, Ying Chang. The real story of stone soup. Dutton Children's Books, 2007.

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ill, Fiorentino Al, ed. Phantom of the video store. Gareth Stevens Pub., 2000.

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ill, Fiorentino Al, ed. Phantom of the video store. Big Red Chair Books, 1999.

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Brennan, Herbie. Frankenstella and the video store monster. Bloomsbury Children's Books, 2002.

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Book chapters on the topic "Renal stone"

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Moochhala, Shabbir H., and Robert J. Unwin. "Renal Stone Disease." In Practical Nephrology. Springer London, 2014. http://dx.doi.org/10.1007/978-1-4471-5547-8_36.

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Findlay, Mark, and Christopher Isles. "Renal Stone Disease." In Clinical Companion in Nephrology. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-14868-7_32.

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Mandel, Neil S., and Gretchen S. Mandel. "Physicochemistry of Urinary Stone Formation." In Renal Stone Disease. Springer US, 1987. http://dx.doi.org/10.1007/978-1-4613-2069-2_1.

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Griffith, Donald P., and Randall B. Meacham. "Contemporary Approaches to Removal of Renal and Ureteral Calculi." In Renal Stone Disease. Springer US, 1987. http://dx.doi.org/10.1007/978-1-4613-2069-2_10.

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Zerwekh, Joseph E. "Pathogenesis of Hypercalciuria." In Renal Stone Disease. Springer US, 1987. http://dx.doi.org/10.1007/978-1-4613-2069-2_2.

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Breslau, Neil A., and Khashayar Sakhaee. "Pathophysiology of Nonhypercalciuric Causes of Stones." In Renal Stone Disease. Springer US, 1987. http://dx.doi.org/10.1007/978-1-4613-2069-2_3.

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Wainer, Laurie, Vicki A. Resnick, and Martin I. Resnick. "Nutritional Aspects of Stone Disease." In Renal Stone Disease. Springer US, 1987. http://dx.doi.org/10.1007/978-1-4613-2069-2_4.

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Judge, Linda O. "Radiologic Considerations." In Renal Stone Disease. Springer US, 1987. http://dx.doi.org/10.1007/978-1-4613-2069-2_5.

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Preminger, Glenn M., and Jean A. Harvey. "Diagnostic Considerations." In Renal Stone Disease. Springer US, 1987. http://dx.doi.org/10.1007/978-1-4613-2069-2_6.

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Pak, Charles Y. C. "Prevention of Recurrent Nephrolithiasis." In Renal Stone Disease. Springer US, 1987. http://dx.doi.org/10.1007/978-1-4613-2069-2_7.

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Conference papers on the topic "Renal stone"

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Asselman, Marino, James C. Williams, Andrew P. Evan, James E. Lingeman, and James A. McAteer. "Hyaluronan and Stone Disease." In RENAL STONE DISEASE 2: 2nd International Urolithiasis Research Symposium. AIP, 2008. http://dx.doi.org/10.1063/1.2998010.

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Moran, Michael E., Katherine Ruzhansky, James C. Williams, Andrew P. Evan, James E. Lingeman, and James A. McAteer. "Greco-Roman Stone Disease." In RENAL STONE DISEASE 2: 2nd International Urolithiasis Research Symposium. AIP, 2008. http://dx.doi.org/10.1063/1.2998043.

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Worcester, Elaine M., Andrew P. Evan, Fredric L. Coe, et al. "Pathogenesis of Stone Disease." In RENAL STONE DISEASE 2: 2nd International Urolithiasis Research Symposium. AIP, 2008. http://dx.doi.org/10.1063/1.2998058.

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Rao, Reena, Chuan-Ming Hao, and Matthew D. Breyer. "Renal Medullary Interstitial Cells." In RENAL STONE DISEASE: 1st Annual International Urolithiasis Research Symposium. AIP, 2007. http://dx.doi.org/10.1063/1.2723559.

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Lieske, John C., Rajiv Kumar, James C. Williams, Andrew P. Evan, James E. Lingeman, and James A. McAteer. "Bariatric Surgery and Stone Disease." In RENAL STONE DISEASE 2: 2nd International Urolithiasis Research Symposium. AIP, 2008. http://dx.doi.org/10.1063/1.2998020.

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Daudon, Michel, Paul Jungers, Dominique Bazin, et al. "Stone Morphology: Implication for Pathogenesis." In RENAL STONE DISEASE 2: 2nd International Urolithiasis Research Symposium. AIP, 2008. http://dx.doi.org/10.1063/1.2998023.

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Ryall, Rosemary L., Alison F. Cook, Lauren A. Thurgood, and Phulwinder K. Grover. "Macromolecules Relevant to Stone Formation." In RENAL STONE DISEASE: 1st Annual International Urolithiasis Research Symposium. AIP, 2007. http://dx.doi.org/10.1063/1.2723569.

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Kavanagh, John P., and P. Nagaraj Rao. "Lessons from a Stone Farm." In RENAL STONE DISEASE: 1st Annual International Urolithiasis Research Symposium. AIP, 2007. http://dx.doi.org/10.1063/1.2723572.

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Novak, Thomas E., Bruce J. Trock, Yegappan Lakshmanan, et al. "Gender Distribution of Pediatric Stone Formers." In RENAL STONE DISEASE 2: 2nd International Urolithiasis Research Symposium. AIP, 2008. http://dx.doi.org/10.1063/1.2998052.

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Daudon, Michel, Olivier Traxer, Paul Jungers, and Dominique Bazin. "Stone Morphology Suggestive of Randall’s Plaque." In RENAL STONE DISEASE: 1st Annual International Urolithiasis Research Symposium. AIP, 2007. http://dx.doi.org/10.1063/1.2723556.

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Reports on the topic "Renal stone"

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Hernández, Karla, Bridget Lynn Hoffmann, Cristóbal Ruiz-Tagle, and Alejandra Schueftan. The Cost-Effectiveness of Air Pollution Information Provision Programs. Inter-American Development Bank, 2021. http://dx.doi.org/10.18235/0003391.

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Air pollution is one of the primary causes of premature death worldwide. This paper examines the cost-effectiveness of two different air quality information programs that were implemented as part of randomized control trials. In the case of the SMS air quality alerts in Mexico City, we find that the program was not cost-effective in the experimental sample, but it would likely be cost-effective if the program were extended to all of Mexico City. In the case of real-time feedback on wood stove emissions in Valdivia, we find that the program was cost-effective in both the experimental sample and at scale.

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Approach and management of lower pole renal stones. BJUI Knowledge, 2018. http://dx.doi.org/10.18591/bjuik.0439.

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Why is my patient having recurrent renal stones? BJUI Knowledge, 2016. http://dx.doi.org/10.18591/bjuik.0434.

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Should a history of renal stones exclude a live donor? BJUI Knowledge, 2016. http://dx.doi.org/10.18591/bjuik.0380.

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Guidelines on surgical management of renal stones in a normal kidney. BJUI Knowledge, 2018. http://dx.doi.org/10.18591/bjuik.0436.

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What are the challenges of managing stones in renal calyceal diverticula? BJUI Knowledge, 2017. http://dx.doi.org/10.18591/bjuik.0438.

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