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Ureteral calculi

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https://www.readbyqxmd.com/read/29133169/ureteroscopy-for-paediatric-calculi-the-twin-surgeon-model
#1
Bhaskar K Somani, Stephen Griffin
We describe our 'Tips and tricks' of ureteroscopy and lasertripsy (URSL) for paediatric ureteric calculi. All regional referrals directed to the paediatric urologist are discussed in a formal stone multidisciplinary team (MDT) meeting with urologists, radiologists, and biochemical pathologist. A paediatric urologist (SG) and an experienced adult endourologist (BS) do these stone procedures jointly as a twin-surgeon team approach for each patient.
November 10, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29130676/-the-feasibility-of-ct-attenuation-value-to-predict-the-composition-of-upper-urinary-calculi-and-success-rate-of-extracorporeal-shock-wave-lithotripsy
#2
Yu Fan, Zhen-Hua Liu, Qiang Wei, Zhuang Tang, Liang-Ren Liu, Bi-Hua Ren, Xiang Li, Yi-Ge Bao, Lu Yang
OBJECTIVE: To explore the feasibility of CT attenuation value (CTvalue) to predict the composition of upper urinary calculi and the number of shock waves (NSW) and success rate (SR) of extracorporeal shock wave lithotripsy (ESWL). METHODS: A total of 146 patients with upper urinary calculi treated by ESWL were included. CT scan was performed before ESWL. Upper urinary calculi with the maximum diameters of less than or equal to 2 cm were included. Infrared spectroscopy was used to analyze the composition of calculi...
September 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/29124244/impact-of-loop-tail-ureteral-stents-on-ureteral-stent-related-symptoms-immediately-after-ureteroscopic-lithotripsy-comparison-with-pigtail-ureteral-stents
#3
Makoto Taguchi, Takaaki Inoue, Kouei Muguruma, Takashi Murota, Hidefumi Kinoshita, Tadashi Matsuda
Purpose: To evaluate urination-related quality of life (QoL) in patients with an indwelling ureteral stent immediately after ureteroscopic lithotripsy (URSL) for upper urinary calculi. We compared the effects of loop-tail and pigtail ureteral stents on urination-related QoL. Materials and Methods: Of 135 patients who underwent URSL between May 2014 and March 2015 at our hospital, we retrospectively analyzed the records of 70 patients (42 men, 28 women; median age, 63 years) in whom the stent tail was positioned inside the bladder without crossing the midline and who completed the core lower urinary tract symptoms score (CLSS) questionnaire pre- and postoperatively...
November 2017: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/29118539/laparoscopic-heminephrectomy-in-horseshoe-kidneys-a-single-center-experience
#4
Santosh Agrawal, Jaisukh Kalathia, Saurabh Sudhir Chipde, Udit Mishra, Anurag Tyagi, Sanjay Parashar
Introduction: Laparoscopic approach in horseshoe kidney (HSK) is a challenge because of the aberrant vessels, the renal isthmus and the renal ectopia are all unique features of this anomaly encountered during the surgery. We report our single center experience with this technique in managing three patients with HSK. Methods: A total of 15 cases (9 males and 6 females) were operated between June 2011 and December 2016 for various indications. Of these four patients were managed laparoscopically, two patients with HSK had non-functioning renal moiety underwent transperitoneal heminephrectomy...
October 2017: Urology Annals
https://www.readbyqxmd.com/read/29098192/forgotten-perinephric-drain-anchored-in-the-tissues-lessons-to-be-learned
#5
Prashant Kumar, Rishi Nayyar
Background: Drainage of any deep seated abscess often requires placement of catheters along with other conservative measures. These catheters are removed when the drainage volume reduces to clinically insignificant levels. However, if left in situ, there are potential complications. One such complication necessitating additional surgical procedure is highlighted in this case report. Malecot's catheter and children may be more at risk for such a complication. Case Presentation: A 7-year-old girl presented with recurrent episodes of right flank pain associated with high-grade fever with chills for the last 5 months and right perinephric drain in situ...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/29082326/-valve-type-retainment-of-flexible-ureteroscope-in-the-distal-ureter
#6
Nariman Gadzhiev, Vladislav Grigoryev, Zhamshid Okhunov, Nobel Nguyen, Aleksei Pisarev, Bairamov Hikmet, Sergei Petrov
Introduction: Flexible ureteroscopy (fURS) is an endoscopic procedure for the minimally invasive treatment of ureteral and renal calculi. Due to improvements in technique and ureteroscopic instrumentation over the past two decades, complications associated with URS are infrequent. However, in the event of an unexpected device malfunction or failure, the operating surgeon must employ prompt, resolute decision-making to resolve any intraoperative complications and avoid significant injury to the kidney or ureter...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/29061070/ureteroscopic-laser-lithotripsy-a-review-of-dusting-versus-fragmentation-with-extraction
#7
Brian R Matlaga, Ben H Chew, Brian Eisner, Mitchell R Humphreys, Bodo E Knudsen, Amy E Krambeck, Dirk Lange, Michael Eric Lipkin, Nicole L Miller, Manoj Monga, Vernon M Pais, Roger L Sur, Ojas Shah
INTRODUCTION: Ureteroscopic laser lithotripsy is becoming the most commonly utilized treatment for patients with urinary calculi. The Holmium:YAG laser is integral to the operation, and is the preferred flexible, intracorporeal lithotrite. In recent years, there has been increasing interest in examining the effect of varying the laser settings on the effectiveness of stone treatment. Herein, we review the two primary laser treatment approaches: dusting and fragmentation with extraction...
October 23, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/29050175/-effects-of-retroperitoneal-laparoscopic-ureterolithotomy-and-flexible-ureteroscopic-holmium-laser-lithotripsy-for-complex-upper-ureteral-calculi
#8
L J Zhang, B Wu, Z L Zha, H Zhao, W Yang, X H Chen, B Jiang, Q Huang, W J Li, J Yuan
Objective: To explore the clinical effects of retroperitoneal laparoscopic ureterolithotomy (RPLU) and flexible-ureteroscopic holmium laser lithotripsy (f-UHLL) for complicated upper ureteral calculi. Methods: A total of 45 cases of complicated upper ureteral calculi between March 2014 and January 2016 in Department of Urology, Affiliated Jiangyin Hospital of Southeast University Medical College were retrospectively analyzed, there were 32 males and 13 females, ranging from 27 to 45 years with an average age of (34...
October 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28977111/is-a-safety-guidewire-needed-for-retrograde-ureteroscopy
#9
Wilson Rica Molina, Rodrigo R Pessoa, Rodrigo Donalísio da Silva, Diedra Gustafson, Leticia Nogueira, Alex Meller
INTRODUCTION: It is generally advised to have a safety guidewire (SGW) present during ureteroscopy (URS) to manage possible complications. However, it increases the strenght needed to insert and retract the endoscope during the procedure, and, currently, there is a lack of solid data supporting the need for SGW in all procedures. We reviewed the literature about SGW utilization during URS. METHOD: A review of the literature was conducted through April 2017 using PubMed, Ovid, and The Cochrane Library databases to identify relevant studies...
August 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28976346/-analysis-of-success-predictive-factors-in-the-treatment-of-urinary-lithiasis-by-extracorporeal-shock-wave-lithotripsy-patient-optimization-eswl-score
#10
Pablo Garrido-Abad, Miguel Ángel Rodríguez-Cabello, Arturo Platas-Sancho
OBJECTIVE: Extracorporeal shock wave lithotripsy (ESWL) represents one of the most frequently used methods to treat urinary tract calculi. However, sometimes we do not obtain the fragmentation expected. The aim of this study is to evaluate the parameters that may influence ESWL final results, developing a classification for better patient's selection and outcome optimization. METHODS: 270 patients with renal or ureteral stones were retrospectively reviewed after ESWL treatment, recording both clinical parameters (age, sex, location, laterality, body mass index [BMI]), and CT-Scan parameters (stone size and volume, skin-to-stone distance (SSD), mean and maximal stone density)...
October 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28969396/epidemiologic-study-of-urolithiasis-in-seven-countries-of-south-eastern-europe-s-e-g-u-r-1-study
#11
Andreas Karagiannis, Andreas Skolarikos, Emanuel Alexandrescu, Dragoslav Basic, Petrisor Geavlete, Alessandro Maletta, A Yaser Muslumanoglu, Athanasios Papatsoris, Kremena Petkova, Skender Saidi, Aleksandar Skakic, Iliya Saltirov, Kemal Sarica, Sotir Stavridis, Omer Yilmaz, Alberto Trinchieri
OBJECTIVE: To investigate some epidemiological aspects of kidney stones in the South- Eastern European area. MATERIALS AND METHODS: From September 2015 to December 2015, 538 consecutive patients were treated and evaluated for reno-ureteral stones in eight departments in Bulgaria, Greece, Italy, FYR Macedonia, Romania, Serbia and Turkey. RESULTS: The age of onset was lower in Turkey and higher in Italy. The rate of recurrent patients was higher in Romania and Serbia, while first renal stone formers were more frequent in Italy...
October 3, 2017: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28966022/pediatric-hospitalizations-for-upper-urinary-tract-calculi-epidemiological-and-treatment-trends-in-the-united-states-2001-2014
#12
Parth K Modi, Young Suk Kwon, Rachel B Davis, Sammy E Elsamra, Viktor Dombrovskiy, Ephrem O Olweny
INTRODUCTION: The incidence of urolithiasis in the pediatric population in the United States has steadily been increasing over the past few decades. Few studies to date have examined trends in the hospitalization and inpatient surgical treatment of urolithiasis in the pediatric population using nationally representative data. OBJECTIVE: The aim was to evaluate nationwide trends in the rates of pediatric hospitalization and inpatient surgical activity for upper urinary tract calculi (UUTC) in the United States from 2001 to 2014...
September 7, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28943373/ureteroscopy-with-holmium-yag-laser-lithotripsy-for-ureteral-stones-in-preschool-children-analysis-of-the-factors-affecting-the-complications-and-success
#13
Faruk Kucukdurmaz, Erkan Efe, Tayfun Sahinkanat, Akın Soner Amasyalı, Sefa Resim
OBJECTIVES: To evaluate the factors that may affect the efficacy and safety of ureteroscopy with holmium:YAG (Ho:YAG) laser lithotripsy in the management of ureteral stones in preschool children. MATERIAL-METHODS: Medical records of 70 children, 32 boys and 38 girls, who were treated for ureteral stones at our clinic between 2014 and 2016 were retrospectively reviewed. Patients were grouped according to size of the instrument used as group 1 (n:40,ultrathin 4.5 fr) and group 2 (n:30,7...
September 21, 2017: Urology
https://www.readbyqxmd.com/read/28932691/percutaneous-nephrolithotomy-ileal-conduit-lithotripsy-and-litholapaxy-for-a-neglected-encrusted-ureteral-stent
#14
Andrés Gutierrez, Julián Chavarriaga, María A Ocampo, Carlos Hernandez
Urolithiasis can result as a complication of urinary diversión, favored by urinary stasis, intestinal mucus, urinary tract bacteriuria, the metabolic derangements and the presence of foreign bodies. We present a 52- year-old male who underwent radical cystectomy with construction of a Bricker uretero-ileostomy. 5 years later he was found with a forgotten ureteral stent, a 6 cm calculi occupying the whole ileal conduit and a 13 mm calculi in the left renal pelvis. We present our experience in the successful endourological management of an encrusted neglected ureteral stent in an ileal conduit, achieving a stone-free status without complications...
November 2017: Urology Case Reports
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
#15
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
#16
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
#17
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-flexorvue-vs-reusable-boavision-ureteroscope-for-visualization-of-calices-and-stone-extraction-in-an-artificial-kidney-model
#18
Daniel Schlager, Simon Hein, Moaaz Abdulghani Obaid, Konrad Wilhelm, Arkadiusz Miernik, Martin Schoenthaler
PURPOSE: To evaluate and compare Flexor(®)Vue™, a semidisposable endoscopic deflection system with disposable ureteral sheath and reusable visualization source, and a nondisposable fiber optic ureteroscope in a standard in vitro setting. MATERIALS AND METHODS: FlexorVue 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 two different extraction devices (NCircle(®) and NGage(®))...
November 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
#19
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
#20
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
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