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Ureteral calculi

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https://www.readbyqxmd.com/read/28931028/the-efficacy-of-extracorporeal-shockwave-lithotripsy-for-symptomatic-ureteral-stones-predictors-of-treatment-failure-without-the-assistance-of-computed-tomography
#1
Bing-Juin Chiang, Chun-Hou Liao, Yu-Hua Lin
OBJECTIVES: Non-contrast computed tomography (NCCT) is not always performed clinically if the diagnosis of ureteral calculi has been confirmed using other radiographic imaging modalities. The aim of this study was to identify predictors of successful extracorporeal shockwave lithotripsy (ESWL) without assistance of NCCT. METHODS: We retrospectively reviewed the medical records of patients with symptomatic solitary ureteral stones who underwent ESWL between November 2015 and January 2016...
2017: PloS One
https://www.readbyqxmd.com/read/28868505/radiological-noninvasive-assessment-of-ureteral-stone-impaction-into-the-ureteric-wall-a-critical-evaluation-with-objective-radiological-parameters
#2
Ozlem Elibol, Kadihan Yalcin Safak, Ayse Buz, Bilal Eryildirim, Kutluhan Erdem, Kemal Sarica
PURPOSE: To determine the predictive value of certain radiological parameters for an objective asssessment of the presence of ureteral stone impaction. MATERIALS AND METHODS: Seventy-nine patients with a single proximal ureteral stones were retrieved from the departmental database. Both clinical and particularly radiological data of all cases were well evaluated on this aspect. In addition to the time period between the first colic attack and definitive management; diameter of proximal ureter and renal pelvis, longitudinal and transverse stone size, Hounsfied unit (HU) of the stone and lastly ureteral wall thickness at the impacted stone site were all carefully evaluated and noted...
September 2017: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/28845939/-experience-in-ureteroscopy-for-managing-urolithiasis-in-one-clinic-when-does-quantity-transform-into-quality
#3
V Yu Ivanov, V A Malkhasyan, I V Semenyakin, D Yu Pushkar
INTRODUCTION: In recent years, there has been an increasing role of ureteroscopy in managing urinary tract calculi of various locations. Several studies have reported the relationship between the efficacy and safety of ureteroscopic interventions and surgeons skills and hospital caseload volume. The aim of our study was to assess the effectiveness of urethroscopic stone removal, the changes in treatment effectiveness, frequency and types of complications along with gaining experience in these interventions...
July 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28844156/performance-of-single-use-flexor%C3%A2-vue%C3%A2-vs-reusable-boavision%C3%A2-ureteroscope-for-visualization-of-calyces-and-stone-extraction-in-an-artificial-kidney-model
#4
Daniel Schlager, Simon Hein, Moaaz Abdulghani Obaid, Konrad Wilhelm, Arkadiusz Miernik, Martin Schoenthaler
PURPOSE: To evaluate and compare Flexor®Vue™, an semi-disposable endoscopic deflection system with disposable ureteral sheath and reusable visualization source, and a nondisposable fiber optic ureteroscope in a standard in vitro setting. MATERIAL & METHODS: Flexor®Vue™ and a reusable fiber optic flexible ureteroscope were each tested in an artificial kidney model. The experimental setup included the visualization of colored pearls and the extraction of calculi with 2 different extraction devices (NCircle®, NGage®)...
August 26, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28816298/-multiple-endoscopy-for-the-treatment-of-upper-urinary-tract-calculi-following-ileal-conduit-a-case-report-and-literature-review
#5
B Wang, J F Ye, L Zhao, H Bi, J Lu, L L Ma
Upper urinary tract calculi with infection is a quite difficult acute urologic emergency. And what is more, upper urinary tract obstruction after radical cystectomy following urinary diversion may be fatal in the vulnerable patients with this kind of situation. Postoperative anatomy and other factors affect the upper urinary tract calculi, and urinary tract infection greatly increased the risk. But it is particularly difficult to handle with patients with poor general condition and septic shock treatment, so how to optimize the selection program is worth further studying...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28816278/-analysis-of-development-safety-and-efficacy-of-percutaneous-nephrolithotomy-for-management-of-upper-urinary-tract-calculi-in-pediatric-patients
#6
L P Yu, T Xu
OBJECTIVE: To evaluate the development, safety and efficacy of percutaneous nephrolithotomy(PNL) for management of upper urinary tract calculi in pediatric patients. METHODS: In the study, 77 pediatric patients undergoing 87 PNLs through mini or standard tract for upper urinary tract calculi between January 2005 and December 2016 in Peking University People's hospital were reviewed, including 69 renal calculi, 6 upper ureteral calculi, 12 renal and upper ureteral calculi, 35 single calculi, 43 multiple calculi and 9 staghorn calculi...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28802643/update-on-urinary-stones-in-children-current-and-future-concepts-in-surgical-treatment-and-shockwave-lithotripsy
#7
REVIEW
Mesrur Selcuk Silay, Jonathan S Ellison, Thomas Tailly, Paolo Caione
CONTEXT: Miniaturized instrumentation used for endoscopic treatment of urinary stone disease in children has been readily adopted in clinical practice. However, there is a need to optimize and individualize the surgical approach according to the patient's age, body habitus, and stone characteristics. Promising novel equipment and techniques will continue to advance the surgical care of these children. OBJECTIVE: To review the literature regarding surgical and shockwave lithotripsy (SWL) treatment of urinary stone disease in children and provide an overview on future treatment innovations...
August 9, 2017: European Urology Focus
https://www.readbyqxmd.com/read/28802568/the-application-of-suctioning-flexible-ureteroscopy-with-intelligent-pressure-control-in-treating-upper-urinary-tract-calculi-on-patients-with-a-solitary-kidney
#8
Jianrong Huang, Donghua Xie, Ruiping Xiong, Xiaolin Deng, Chengbing Huang, Difu Fan, Zuofeng Peng, Wen Qin, Min Zeng, Leming Song
OBJECTIVE: To investigate the usage of intelligently pressure-controlled flexible ureteroscopy (URS) in managing upper urinary tract calculi in patients with a solitary kidney. METHODS: Forty patients with a solitary kidney and upper urinary tract calculus were included in this study. All the patients underwent suctioning URS with intelligent control of renal pelvic pressure by connecting pressure-measuring suctioning ureteral access sheath to an irrigation and suctioning platform...
August 9, 2017: Urology
https://www.readbyqxmd.com/read/28790547/the-role-of-the-tamsulosin-in-the-medical-expulsion-therapy-for-distal-ureteral-stones
#9
Petrit Nuraj, Nexhmi Hyseni
BACKGROUND: This research aims to evaluate the role of tamsulosin in the medical expulsion therapy for distal ureteral stones, including her effects in stone expulsion time, expulsion rates, stone size, pain episodes and analgesic dosage usage. MATERIAL AND METHODS: The 104 patients with distal ureteral calculi were examined, with the size of the stones 4-10 mm. They were randomly divided into two groups: study group (n=52), received tamsulosin 0.4 mg in morning, for 28 days, analgesic (diclofenac 75 mg), high fluid intake and Control group (n=52) received analgesic (diclofenac 75 mg), high fluid intake...
April 2017: Medical Archives
https://www.readbyqxmd.com/read/28733910/a-review-study-to-evaluate-holmium-yag-laser-lithotripsy-with-flexible-ureteroscopy-in-patients-on-ongoing-oral-anticoagulant-therapy
#10
Bulent Altay, Bulent Erkurt, Selami Albayrak
The objective of this study was to evaluate the safety and efficacy of flexible ureteroscopy (FURS) and holmium:YAG laser lithotripsy for the treatment of upper urinary tract stones in patients on active oral anticoagulants. The records of 1081 patients who underwent flexible ureteroscopic holmium:YAG (Ho:YAG) laser lithotripsy for upper ureteral and renal calculi from 1999 to 2015 were retrospectively reviewed. A total of 84 patients on continuous oral anticoagulation or antiplatelet therapy (warfarin, aspirin, or clopidogrel) were identified...
July 22, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28666482/urolithiasis-secondary-to-primary-obstructive-megaureter-in-an-adult-a-case-report
#11
Somuah Tenkorang, Jean-Paul Omana, Soufiane Mellas, Fadl Mohammed Tazi, Jalal Eddine El Ammari, Abdelhak Khallouk, Mohammed Jamal El Fassi, Moulay Hassan Farih
BACKGROUND: Primary obstructive megaureter is relatively uncommon in adults. This condition usually regresses spontaneously or is treated during infancy. It can remain asymptomatic for decades until adulthood when symptoms may manifest in the event of complications or during a routine radiologic imaging. Primary obstructive megaureter has been reported to favor stone formation in the upper urinary tract. CASE PRESENTATION: We present the case of a 35-year-old Moroccan man who had a 10-year history of intermittent left flank pain and hematuria...
July 1, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28616591/retained-double-j-stent-with-huge-renal-and-bladder-calculi-extracted-by-percutaneous-nephrolithotomy-and-percutaneous-cystolitholapaxy-in-a-single-encounter
#12
Rajendra B Nerli, Shivagouda M Patil, Prasad Magdum, Vikas Sharma, Shridhar Ghagane, Murigendra B Hiremath, Neeraj Dixit
We report a case of retained Double J ureteral stent with huge, multiple calculi at both ends in a 10-year-old female child. The renal and bladder calculi were managed by percutaneous nephrolithotomy and percutaneous cystolitholapaxy in a single sitting.
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/28611901/a-comparison-of-urolithiasis-in-the-presence-and-absence-of-microscopic-hematuria-in-the-emergency-department
#13
Jason M Mefford, Robert M Tungate, Leila Amini, Dongjin Suh, Craig L Anderson, Scott E Rudkin, Megan Boysen-Osborn
INTRODUCTION: Urolithiasis is a common medical condition that accounts for a large number of emergency department (ED) visits each year and contributes significantly to annual healthcare costs. Urinalysis is an important screening test for patients presenting with symptoms suspicious for urolithiasis. At present there is a paucity of medical literature examining the characteristics of ureteral stones in patients who have microscopic hematuria on urinalysis versus those who do not. The purpose of this study was to examine mean ureteral stone size and its relationship to the incidence of clinically significant hydronephrosis in patients with and without microscopic hematuria...
June 2017: Western Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28589147/ultrasonography-is-not-inferior-to-fluoroscopy-to-guide-extracorporeal-shock-waves-during-treatment-of-renal-and-upper-ureteric-calculi-a-randomized-prospective-study
#14
Jeroen Van Besien, Pieter Uvin, Isabeau Hermie, Thomas Tailly, Luc Merckx
OBJECTIVE: To investigate whether the visualization modality (ultrasound or fluoroscopy) used during shockwave lithotripsy (SWL) affects the clinical outcome in those instances where both imaging modalities are optional. METHODS: Between November 2014 and July 2016, 114 patients with radiopaque upper urinary tract calculi were randomly assigned to an ultrasound- or fluoroscopy-guided SWL group in a prospective, open-label, single-center study. A standardized SWL protocol was used...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28589076/non-contrast-computed-tomography-scan-based-parameters-of-ureteric-stones-affecting-the-outcome-of-extracorporeal-shock-wave-lithotripsy
#15
Muhammad Waqas, Mohammad Ayaz Khan, Muhammad Waqas Iqbal, Mian Khalid Akbar, Imad-Ud-Din Saqib, Saeed Akhter
OBJECTIVE : To compare the non-contrast computed tomography (NCCT) scan-based parameters of ureteric stones affecting the outcome of extracorporeal shock wave lithotripsy (ESWL). MATERIALS AND METHODS: We retrospectively evaluated the pre-procedure NCCT of 74 patients who had ESWL for solitary ureteric calculi of 5-20 mm in diameter. We assessed the age, sex, basal metabolic index (BMI), laterality, location, presence of double 'J' (DJ) stent, skin to stone distance (SSD), stone maximum diameter, Hounsfield unit (HU), Hounsfield density (HD), area, and volume...
May 5, 2017: Curēus
https://www.readbyqxmd.com/read/28588843/bilateral-hydronephrosis-due-to-obstructive-ureteral-stone-associated-with-norovirus-gastroenteritis
#16
Fumihiro Ochi, Kenji Furuno, Pin Fee Chong, Junichiro Tezuka, Yumi Mizuno, Tomonobu Aoki, Eiichi Ishii
Recently, cases of urinary tract calculi causing hydronephrosis and postrenal renal failure associated with viral gastroenteritis were documented, yet few were related to norovirus. During norovirus gastroenteritis, observation of oliguria, aciduria, low FENa value, and elevation of blood or urinary uric acid level may necessitate clinical workout for nephrolithiasis.
June 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28579066/renal-transplantation-using-stone-bearing-deceased-donor-kidneys-experience-of-a-transplant-center-in-china
#17
Chuan-Bao Chen, Liang Zhao, Ming Han, Xiao-Ping Wang, Jian Zhou, Xiao-Peng Yuan, Chang-Xi Wang
OBJECTIVE: To evaluate the outcomes of transplantation of deceased donor stone-bearing kidneys. METHODS: A total of 32 patients who received renal transplantation at our center from July 2011 to June 2016 were included. Eight recipients received kidneys with incidental renal stone(s) (stone group). Twenty-four recipients received kidneys without renal stones (non-stone group). The transplantation outcomes of the 2 groups were compared. RESULTS: There was 1 case of postoperative urinary tract infection in the stone group, and 2 cases in the non-stone group...
June 1, 2017: Urology
https://www.readbyqxmd.com/read/28560352/endourologic-management-of-an-iatrogenic-ureteral-avulsion-using-a-thermoexpandable-nickel-titanium-alloy-stent-memokath-051
#18
Maral J Rouhani, Hamid Abboudi, Norma Gibbons, Tamer El-Husseiny
Background: The use of ureteroscopy in the management of urolithiasis is well established. Ureteral avulsion is a rare but challenging complication of the procedure. Postureteral injury strictures are a common result of such injuries and are typically managed with reconstructive surgery or endoscopically with polymer stent. This case represents the first effective management of ureteral avulsion and subsequent ureteral stricture using a Memokath ureteral stent. Case Presentation: A 54-year-old gentleman presented to the Department of Urology with right loin pain as a result of right renal calculi, previously treated with extracorporeal shockwave lithotripsy...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/28553161/presentation-of-a-method-at-the-exploration-stage-according-to-ideal-percutaneous-nephrolithotomy-pcnl-under-local-infiltrative-anesthesia-is-a-feasible-and-effective-method-retrospective-analysis-of-439-patients
#19
Thorsten H Ecke, Dimitri Barski, Guido Weingart, Carsten Lange, Steffen Hallmann, Jürgen Ruttloff, Friedhelm Wawroschek, Holger Gerullis
INTRODUCTION: This study addresses minimally invasive anesthesiologic and analgetic approaches for stone surgery in the upper urinary tract. Aim of this retrospective analysis is to compare feasibility, safety and complication rates of percutaneous nephrolithotomy (PCNL) under local infiltration anesthesia alone (Group I) and additive intravenous analgetics and/or sedative medications (Group II). MATERIAL AND METHODS: This is a single center study. A total of 439 patients have been included from November 2003 until March 2012...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28515805/is-computed-tomography-defined-obstruction-a-predictor-of-urological-intervention-in-emergency-department-patients-presenting-with-renal-colic
#20
Peter Alexander Massaro, Avinash Kanji, Paul Atkinson, Ryan Pawsey, Tom Whelan
INTRODUCTION: Our objective was to determine whether unilateral calculus-induced ureteric obstruction on computed tomography (CT) was independently associated with the need for urological intervention and 30-day return to the emergency department (ED). METHODS: We performed a retrospective cohort study of patients with symptomatic urinary calculi diagnosed by unenhanced helical CT. Stepwise regression analysis was used to determine the predictors of urological intervention and 30-day return to the ED...
March 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
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