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https://www.readbyqxmd.com/read/28648966/ultra-low-radiation-exposure-during-flexible-ureteroscopy-in-nephrolithiasis-patients-how-far-can-we-go
#1
Simon Hein, Martin Schoenthaler, Konrad Wilhelm, Daniel Schlager, Werner Vach, Ulrich Wetterauer, Arkadiusz Miernik
OBJECTIVES: To evaluate the feasibility and clinical performance of a novel surgeon technique and protocol targeting ultra-low fluoroscopy usage in retrograde intrarenal surgery (RIRS). METHODS: All RIRS procedures between 2009 and 2015 for 10-20-mm renal calculi performed by the same two experienced urologists were eligible. All procedures were performed using a highly standardized step by step RIRS technique. This technique was modified by the ultra-low radiation exposure RIRS protocol: herein as much as possible of the standardized steps were performed without radiation control targeting ultra-low fluoroscopy usage...
June 22, 2017: Urology
https://www.readbyqxmd.com/read/28634523/mallory-weiss-tear-after-violent-hiccups-a-rare-association
#2
Sankalp Dwivedi, Hussein Al-Hamid, Bradley J Warren
We present an unusual case of a 44-year-old male who developed violent hiccups soon after a ureteroscopy for nephrolithiasis; later, the forceful hiccups were followed by hematemesis. Upper esophagogastroduodenoscopy revealed Mallory-Weiss tears and esophageal erosions in the lower esophagus. Esophageal biopsy was unremarkable. The patient did not have a prior history of the gastrointestinal disorder. Although extracorporeal shock wave lithotripsy has on rare occasion been implicated in the development of gastrointestinal erosions, no such correlation exists for ureteroscopy and upper gastrointestinal bleeding in the management of nephrolithiasis...
January 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/28622024/comparison-of-radiation-exposure-from-fixed-table-fluoroscopy-to-a-portable-c-arm-during-ureteroscopy
#3
Fernando Cabrera, Richard Shin, Kyle Waisanen, Giao Nguyen, Charles D Scales, Michael N Ferrandino, Glenn M Preminger, Terry T Yoshizumi, Michael Eric Lipkin
INTRODUCTION: Fluoroscopy is widely used during endourologic procedures and is associated with treatment required radiation exposure. Our objective was to estimate patient radiation exposure during fluoroscopy with either a fixed table or portable C-arm using a validated anthropomorphic adult male model. MATERIALS AND METHODS: A validated male anthropomorphic model was placed supine on both a cystoscopy operating room table and a fixed fluoroscopy table unit. Metal oxide semiconductor field effect transistor dosimeters were placed at 20 organ-specific locations in the model to measure organ specific dosages...
June 16, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28621055/impact-of-diagnostic-ureteroscopy-on-intra-vesical-recurrence-in-patients-undergoing-radical-nephroureterectomy-for-upper-tract-urothelial-cancer-a-systematic-review-and-meta-analysis
#4
REVIEW
Michele Marchioni, Giulia Primiceri, Luca Cindolo, Lance Hampton, Mayer B Grob, Georgi Guruli, Luigi Schips, Shahrokh F Shariat, Riccardo Autorino
PURPOSE: To analyze the association between the use of diagnostic ureteroscopy (URS) and development of intra-vesical recurrence (IVR) in patients undergoing radical nephroureterectomy (RNU) for high risk upper tract urothelial cancer. METHODS: A systematic review of the published data was performed up to December 2016 using multiple search engines to identify eligible studies. A formal meta-analysis was conducted for studies comparing patients who underwent URS before RNU to those with did not...
June 16, 2017: BJU International
https://www.readbyqxmd.com/read/28620694/results-of-day-case-ureterorenoscopy-dc-urs-for-stone-disease-prospective-outcomes-over-4-5%C3%A2-years
#5
Anngona Ghosh, Rachel Oliver, Carolyn Way, Lucy White, Bhaskar K Somani
PURPOSE: To investigate the prospective outcomes of day-case ureterorenoscopy (DC-URS) for stone disease. With the rising prevalence of stone disease in the face of finite resources, there is increasing pressure to undertake procedures as a day case avoiding in-patient stay. There are a limited number of studies reporting on the feasibility of ureteroscopy as a day-case procedure. This study aimed to investigate the prospective outcomes and predictors precluding to DC-URS for stone disease in patients treated in our university teaching hospital...
June 15, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/28618681/re-defining-the-rate-of-negative-ureteroscopy-in-the-general-population-treated-for-upper-tract-urinary-stone-disease
#6
David S Wang
No abstract text is available yet for this article.
July 2017: Journal of Urology
https://www.readbyqxmd.com/read/28618680/re-perirenal-hematoma-after-ureteroscopy-a-systematic-review
#7
Dean G Assimos
No abstract text is available yet for this article.
July 2017: Journal of Urology
https://www.readbyqxmd.com/read/28616590/combination-of-extracorporeal-shockwave-lithotripsy-and-ureteroscopy-for-large-staghorn-calculi-in-a-pediatric-patient-case-report
#8
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/28611171/pitfalls-of-the-duplex-system-the-mystery-of-the-missing-stone
#9
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/28611168/rapid-development-and-recurrence-of-translocation-renal-cell-carcinoma
#10
Ned Kinnear, Sam Wreghitt, Derek Barry Hennessey, Peter Liodakis
Translocation renal cell carcinoma (RCC) is a rare aggressive malignancy in adults. A 40-year-old man presented with painless macroscopic haematuria. Initial investigations of renal ultrasound, CT scan, urine culture and urine cytology were normal. On rigid cystoscopy and pyelo-ureteroscopy, bleeding was seen from a normal-appearing right renal upper pole. An arteriovenous malformation was suspected, and laser cautery was performed. Left renal biopsy was performed due to proteinuria and suggested IgA nephropathy...
June 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28608734/endovisually-guided-zero-radiation-ureteral-access-sheath-placement-during-ureterorenoscopy
#11
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
https://www.readbyqxmd.com/read/28608191/shockwave-lithotripsy-techniques-for-improving-outcomes
#12
Tadeusz Kroczak, Kymora B Scotland, Ben Chew, Kenneth T Pace
OBJECTIVES: Shock wave lithotripsy (SWL) remains the only effective truly non-invasive treatment for nephrolithiasis. While single-treatment success rates may not equal those of ureteroscopy and percutaneous nephrolithotomy, it has an important role to play in the management of stones. In this paper, we outline the latest evidence-based recommendations for maximizing SWL outcomes, while minimizing complications. MATERIALS AND METHODS: A comprehensive review of the current literature was performed regarding maximizing SWL outcomes...
June 12, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/28604991/ureteroscopy-in-the-diagnosis-of-upper-tract-transitional-cell-cancer-a-10-year-experience-providing-outcome-data-for-informed-consent
#13
Luke Hanna, Vera Chung, Ahmed Ali, Robert Ritchie, Ann Rogers, Mark Sullivan, Stephen Keoghane
PURPOSE: The aim of the study was to assess the effectiveness of ureteroscopy and biopsy in the diagnosis and management of upper tract urothelial carcinoma. METHODS: We retrospectively collated data from pathology, radiology and operating theatre data sets from two large UK hospitals. During the 10-year period examined, 160 patients underwent ureteroscopy prior to nephro-ureterectomy (NU)/distal ureterectomy (DU). RESULTS: Of the 160 patients identified, 140 were ureteroscopically evaluated and biopsied, 104 (74...
June 7, 2017: Urologia
https://www.readbyqxmd.com/read/28599030/pediatric-nephrolithiasis-a-review
#14
Tayaba Miah, Deepak Kamat
The incidence of pediatric nephrolithiasis is on the rise. The composition of kidney stones in children is different than in adults, as most stones in children have a composition of calcium oxalate and calcium phosphate mixed with a small amount of uric acid. The symptoms of pediatric nephrolithiasis are nonspecific. Computed tomography (CT) is the gold standard for diagnosis; however, because of radiation exposure associated with a CT scan, ultrasonography is also an accepted modality for the diagnosis. Extensive metabolic evaluation is important to rule out an underlying metabolic disorder...
June 1, 2017: Pediatric Annals
https://www.readbyqxmd.com/read/28587845/trends-in-the-management-of-urolithiasis-in-latin-america-spain-and-portugal-results-of-a-survey-in-the-confederaci%C3%A3-n-americana-de-urolog%C3%A3-a-cau
#15
J C Angulo, N Bernardo, H Zampolli, M A Rivero, H Dávila, J Gutiérrez
OBJECTIVE: To describe the trends in the current management of urolithiasis in the Confederación Americana de Urología (CAU) setting to recognise patterns of clinical practice and identify educational needs. MATERIAL AND METHOD: An online survey was created with 31 multiple-choice questions (Spanish and Portuguese) through www.caunet.org, which revealed demographic data, patterns of clinical practice and approaches for specific clinical conditions. RESULTS: A total of 463 practitioners from Brazil, Mexico, Argentina, Spain, Colombia, Chile and other countries (3...
June 3, 2017: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/28566415/a-rare-cause-of-anuria-in-a-case-of-pre-b-acute-lymphoblastic-leukaemia
#16
Siddhesh Arun Kalantri, Rahul Singla, Malay Kumar Bera, Maitreyee Bhattyacharyya
Renal failure in cases of acute lymphoblastic leukaemia during induction is mainly because of sepsis and tumour lysis syndrome. This 18-year-old man had sudden onset anuria with increase in creatine. At this time, patient did not have any overt signs or laboratory features suggestive of sepsis. Imaging studies documented bilateral hydronephrosis. Ureteroscopy was done, and it showed presence of soft tissue mass obstructing the ureter. On the the left side, it was noted in its middle part and on the right, at the ureteropelvic junction...
May 31, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28560471/impact-of-laser-fiber-tip-cleavage-on-power-output-for-ureteroscopy-and-stone-treatment
#17
M Haddad, E Emiliani, Y Rouchausse, F Coste, L Berthe, S Doizi, S Buttice, B Somani, O Traxer
PURPOSE: Holmium:YAG laser is the most used laser for urolithiasis. Generally, we use metallic scissors to cut the fiber tip to restore its effectiveness. Many cleaving methods have been described to avoid fiber damage and to restore its greatest power to the fiber. There is a lack of information regarding which cleaving method should be used and its effect on the fiber. In order to compare these effects, we studied different cleavage methods in terms of power output and its effects on the fiber...
May 30, 2017: World Journal of 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/28544299/mini-pcnl-for-renal-calculi-does-size-matter
#19
Derek B Hennessey, Ned K Kinnear, Andrew Troy, David Angus, Damien M Bolton, David R Webb
OBJECTIVE: To evaluate the minimally invasive percutaneous nephrolithotomy (MIP) system for renal calculi. PATIENTS AND METHODS: Consecutive patients undergoing mini-percutaneous nephrolithotomy (mPCNL) procedures with the MIP system were enrolled. Patient position, American Society of Anesthesiologists classification, puncture location, stone clearance, postoperative drainage and complications were recorded, and features unique to MIP were noted. RESULTS: In all, 30 patients underwent 32 mPCNL procedures...
May 2017: BJU International
https://www.readbyqxmd.com/read/28534536/current-clinical-scoring-systems-of-percutaneous-nephrolithotomy-outcomes
#20
REVIEW
Wayland J Wu, Zeph Okeke
Percutaneous nephrolithotomy has become the preferred treatment modality for patients with large renal calculi. The technique provides excellent stone clearance, but complication rates are higher than those of minimally invasive techniques, such as ureteroscopy and shockwave lithotripsy. Guy's stone score, S.T.O.N.E. nephrolithometry, the CROES nomogram, and S-ReSC are contemporary scoring systems introduced to provide standardized grading of stone complexity and outcomes of percutaneous stone surgery. Guy's stone score is easy to apply and has been validated in multiple studies...
May 23, 2017: Nature Reviews. Urology
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