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https://www.readbyqxmd.com/read/29454319/treatment-of-upper-tract-urothelial-carcinoma-with-ureteroscopy-and-thulium-laser-a-retrospective-single-center-study
#1
Jin Wen, Zhi G Ji, Han Z Li
BACKGROUND: Treatment with the combination of ureteroscopy and thulium laser ablation may provide an alternative to radical nephroureterectomy (RNU) for patients with upper tract urothelial carcinoma (UTUC). The purpose of this study was to investigate the efficacy and safety of this technique. METHODS: We performed a retrospective review of the data for patients who were treated surgically for upper tract urothelial carcinoma in a single center. It included 32 patients treated by endoscopic thulium laser resection and 107 patients treated by radical nephroureterectomy (RNU)...
February 17, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29439267/radiation-exposure-during-ureterorenoscopy-and-laser-lithotripsy-an-analysis-of-stone-characteristics
#2
Marios Hadjipavlou, Vincent Lam, Jai Seth, Faqar Anjum, Seshadri Sriprasad
INTRODUCTION AND OBJECTIVES: Stone formers often have a chronic exposure to significant quantities of ionising radiation from radiological investigations and interventions. Predicting radiation exposure would allow the clinician to quantify expected cumulative radiation and find strategies to minimise exposure. We evaluated radiation exposure during ureteroscopy and laser lithotripsy (URS + LL) for a single stone episode and correlated the results to stone characteristics. METHOD: Data was collected retrospectively for all patients undergoing URS + LL in our institution over a 1 year period...
February 13, 2018: Urologia Internationalis
https://www.readbyqxmd.com/read/29438410/a-new-prediction-model-for-operative-time-of-flexible-ureteroscopy-with-lithotripsy-for-the-treatment-of-renal-stones
#3
Shinnosuke Kuroda, Hiroki Ito, Kentaro Sakamaki, Tadashi Tabei, Takashi Kawahara, Atsushi Fujikawa, Kazuhide Makiyama, Masahiro Yao, Hiroji Uemura, Junichi Matsuzaki
This study aimed to develop a prediction model for the operative time of flexible ureteroscopy (fURS) for renal stones. We retrospectively evaluated patients with renal stones who had been treated successfully and had stone-free status determined by non-contrast computed tomography (NCCT) 3 months after fURS and holmium laser lithotripsy between December 2009 and September 2014 at a single institute. Correlations between possible factors and the operative time were analyzed using Spearman's correlation coefficients and a multivariate linear regression model...
2018: PloS One
https://www.readbyqxmd.com/read/29434183/plasmacytoid-urothelial-carcinoma-of-ureter-with-retroperitoneal-metastasis-a-case-report
#4
Alexis Jibril, Andrew C Stevens
BACKGROUND Plasmacytoid is a rare histological variant of urothelial carcinoma (UC). Since the first reported case of plasmacytoid urothelial carcinoma (PUC), in 1991, only about 100 cases have since been reported, with most cases involving the bladder. Urothelial carcinomas of the upper urinary tract represent only 5% of urothelial cancers. To the best of our knowledge, there has only been 1 reported case of PUC of the ureter. PUC is a highly aggressive disease, with a poor prognosis. We present a rare biopsy-proven case of PUC of the ureter with retroperitoneal metastasis...
February 13, 2018: American Journal of Case Reports
https://www.readbyqxmd.com/read/29427286/first-experience-of-inserting-a-metallic-mesh-stent-uventa-stent-in-malignant-ureteral-obstruction-in-iran
#5
Mohammad Ali Ghaed, Maziar Daniali, Mohammad Ebrahimian
Malignant ureteral obstruction is usually caused by an extrinsic compression including intra-abdominal cancers. One of the treatment modalities decompressing the obstruction is applying stent to open the ureter. Metallic Stent is an effective instrument which we used for the first time in Iran in our patient who had a metastatic colon cancerwith a single kidney and we used a Novel, Double-Layered, Coated, Self-expandable Metallic Mesh Stent (Uventa Stent) to keep the ureter open. After six months of follow up with ureteroscopy, there was no obstruction any more...
February 10, 2018: Urology Journal
https://www.readbyqxmd.com/read/29421922/pediatric-ureteroscopy
#6
Patrick Fox, Michael C Ost
In recent years, the incidence of nephrolithiasis in the pediatric population appears to be increasing.1 This has placed a new emphasis on surgical management of stones in children. In the past, extra-corporeal shockwave lithotripsy (ESWL) was the preferred management technique for stones in children.2 More recently, though, advances in endoscopy have allowed ureteroscopy to be adapted to the pediatric population and this approach has become more frequently utilized not just for lower ureteral calculi but also for proximal ureteral and renal stones...
February 8, 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29396787/the-effect-of-corticosteroid-on-postoperative-early-pain-renal-colic-and-total-analgesic-consumption-after-uncomplicated-and-unstented-ureteroscopy-a-matched-pair-analysis
#7
Nurullah Hamidi, Erdem Ozturk, Taha Numan Yikilmaz, Ali Fuat Atmaca, Halil Basar
PURPOSE: To evaluate the effect of corticosteroid (CS) on early postoperative pain, renal colic and total analgesic consumption after uncomplicated and unstented ureteroscopy (URS). METHODS: Data of 397 patients who underwent URS and stone fragmentation for symptomatic distal ureteral stone (≤ 15 mm) were retrospectively evaluated. After exclusion, 72 patients who received methylprednisolone (Group I) after non-stenting uncomplicated URS were matched with another 72 patients who did not receive CS (Group II)...
February 2, 2018: World Journal of Urology
https://www.readbyqxmd.com/read/29392926/diagnosis-and-kidney-sparing-treatments-for-upper-tract-urothelial-carcinoma-state-of-the-art
#8
Angelo Territo, Bear Foerster, Shahrokh F Shariat, Morgan Rouprêt, Jose M Gaya, Joan Palou, Alberto Breda
INTRODUCTION: Conservative management of upper tract urothelial cancer (UTUC) is becoming increasingly popular: the key to success is correct selection of patients with low-risk UTUC based on size (≤ 2 cm), focality (single lesion), stage (< T2), and grade (low grade). Despite the recent growing interest in the conservative approach to UTUC, the diagnostic process is still a challenge, and kidney-sparing surgery (KSS) is traditionally reserved for patients with contraindications to radical nephroureterectomy...
February 1, 2018: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/29392185/loss-of-renal-function-after-retrograde-ureteral-placement-of-an-allium-stent-for-severe-ureteral-stricture
#9
Stefano Salciccia, Alessandro Sciarra, Milena Polese, Alpi Giorgio, Martina Maggi, Alessandro Gentilucci, Mauro Ciccariello, Giuseppe D'Eramo, Houssain Shahabadi, Silvia Lai, Gian Piero Ricciuti
Background: Ureteral strictures are a recurrent chronic condition that leads to severe side effects and poor quality of life. Management of ureteral stricture is a great challenge for urologists and no specific guidelines exist. Retrograde Allium® ureteral stent (AUS) is a newly developed ureteral stent to treat either bulbar urethral or ureteral stenosis. Case Presentation: We describe a case of a 74-year-old Caucasian adult male presenting with a severe ureteral stricture secondary to an ureteroscopy for stone disease...
2018: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/29390332/spontaneous-rupture-of-the-renal-pelvis-caused-by-upper-urinary-tract-obstruction-a-case-report-and-review-of-the-literature
#10
REVIEW
Huaming Zhang, Guimin Zhuang, Dongchong Sun, Tianxing Deng, Jiawei Zhang
RATIONALE: Spontaneous renal rupture is rupture of the renal parenchyma, collecting system, or renal blood vessel, which often occurs in pathological kidney and is clinically less common. Postoperative long-term renal rupture is rarely reported in flexible ureteroscopy treatment of calculus in the upper urinary tract. PATIENT CONCERNS: A 58-year-old man complained of right lower abdominal pain with hematuria for 3 hours after flexible ureteroscopy, combined with holmium laser lithotripsy of right renal calculi was performed 1 month ago...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29389928/review-of-acute-symptomatic-urolithiasis-in-auckland
#11
Stephanie Loeff, Manmeet Saluja, Michael Rice
AIM: To evaluate the incidence of acute symptomatic urolithiasis in the Auckland region. Associated epidemiological factors and stone characteristics were also studied and compared to previous research conducted in order to analyse trends. METHOD: All patients that presented acutely with symptomatic urolithiasis to the Auckland District Health Board (AHDB) between July 2014 and June 2015 were studied. Clinical data was obtained from medical records and population data was based on estimates provided by the Ministry of Health...
February 2, 2018: New Zealand Medical Journal
https://www.readbyqxmd.com/read/29385814/addition-of-sodium-bicarbonate-to-irrigation-solution-may-assist-in-dissolution-of-uric-acid-fragments-during-ureteroscopy
#12
Jessica E Paonessa, James Caldwell Williams, James E Lingeman
INTRODUCTION: We hypothesized that adding sodium bicarbonate (bicarb) to normal saline (NS) irrigation during ureteroscopy (URS) in patients with uric acid (UA) nephrolithiasis may assist in dissolving small stone fragments produced during laser lithotripsy. In vitro testing was performed to determine if dissolution of UA fragments could be accomplished within one hour. MATERIALS AND METHODS: 100% UA renal calculi were fragmented, filtered, and separated by size...
January 31, 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29382444/intraureteral-lidocaine-for-ureteral-stent-symptoms-post-ureteroscopy-a-randomized-phase-2-placebo-controlled-trial
#13
Gregory Roberts, Robert Leslie, Sylvia Robb, D Robert Siemens, Darren Beiko
INTRODUCTION: Ureteral stent and ureteral manipulation-related pain is a significant complication for patients undergoing ureteroscopy. Herein, we report a phase 2, randomized trial to assess efficacy of direct instillation of intraureteral lidocaine in reducing postoperative pain and ureteral stent symptoms. METHODS: We performed a randomized, double-blinded trial of patients undergoing elective ureteroscopy for ureteral calculi. Patients were randomized to direct instillation of 2% lidocaine plus bicarbonate, or to normal saline as control...
October 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/29381459/assessment-of-urology-postgraduate-trainees-competencies-in-flexible-ureteroscopic-stone-extraction
#14
Mehdi Aloosh, Félix Couture, Nader Fahmy, Mostafa M Elhilali, Sero Andonian
INTRODUCTION: We aimed to assess flexible ureteroscopic stone extraction skill of urology postgraduate trainees (PGTs) at an Objective Structured Clinical Examination (OSCE) and to determine whether previous experience in the operating theatre or practice on the simulator correlated with performance. METHODS: After obtaining ethics approval, PGTs from postgraduate years (PGYs) 3-5 were recruited from all four Quebec urology training programs during an OSCE. After a short orientation to the UroMentor™ simulator, PGTs were asked to perform Task 10 for 15 minutes, where two small stones from the left proximal ureter and renal pelvis were extracted using a basket...
December 1, 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/29380131/increasing-the-size-of-ureteral-access-sheath-during-retrograde-intrarenal-surgery-improves-surgical-efficiency-without-increasing-complications
#15
Chad R Tracy, George M Ghareeb, Charles J Paul, Nathan A Brooks
PURPOSE: To directly compare intraoperative and post-operative outcomes and complications between three groups undergoing ureteroscopy: no ureteral access sheath, 12/14 Fr and larger 14/16 Fr ureteral access sheaths (UAS). METHODS: We retrospectively reviewed demographic, pre-operative, intraoperative, and post-operative data of 257 patients who underwent ureteroscopy for nephrolithiasis by a single surgeon from January 2013 through July 2015. Patients were separated into three groups: no UAS, a 12/14 Fr UAS, or 14/16 Fr UAS...
January 27, 2018: World Journal of Urology
https://www.readbyqxmd.com/read/29373918/carbon-footprint-in-flexible-ureteroscopy-a-comparative-study-on-the-environmental-impact-of-reusable-and-single-use-ureteroscopes
#16
Niall F Davis, Shannon McGrath, Mark Quinlan, Greg Jack, Nathan Lawrentschuk, Damien M Bolton
Purpose There are no comparative assessments on the environmental impact of endourological instruments. We evaluated and compared the environmental impact of single-use flexible ureteroscopes with reusable flexible ureteroscopes. Patients and Methods An analysis of the typical life-cycle of the LithovueTM (Boston Scientific) single-use digital flexible ureteroscope and Olympus Flexible Video Ureteroscope (URV-F) was performed. To measure the carbon footprint, data was obtained on manufacturing of single-use and reusable flexible ureteroscopes and from typical uses obtained with a reusable scope including repairs, replacement instruments and ultimate disposal of both ureteroscopes...
January 26, 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29372357/micro-ureteroscopy-vs-ureteroscopy-effects-of-miniaturization-on-renal-vascularization-and-intrapelvic-pressure
#17
Juan-Pablo Caballero-Romeu, Jua-Antonio Galán-Llopis, Federico Soria, Esther Morcillo-Martín, Pablo Caballero-Pérez, Alejandro Garcia, Julia E De La Cruz-Conty, Jesús Romero-Maroto
PURPOSE: Ureteroscopy (URS) is related to complications, as fever or postoperative urinary sepsis, due to high intrapelvic pressure (IPP) during the procedure. Micro-ureteroscopy (m-URS) aims to reduce morbidity by miniaturizing the instrument. The objective of this study is to compare IPP and changes in renal haemodynamics, while performing m-URS vs. conventional URS. METHODS: A porcine model involving 14 female pigs was used in this experimental study. Two surgeons performed 7 URS (8/9...
January 25, 2018: World Journal of Urology
https://www.readbyqxmd.com/read/29368229/viability-and-biocompatibility-of-an-adhesive-system-for-intrarenal-embedding-and-endoscopic-removal-of-small-residual-fragments-in-minimally-invasive-stone-treatment-in-an-in-vivo-pig-model
#18
Simon Hein, Dominik Stefan Schoeb, Ingo Grunwald, Katharina Richter, Jörg Haberstroh, Maximilian Seidl, Peter Bronsert, Ulrich Wetterauer, Martin Schoenthaler, Arkadiusz Miernik
PURPOSE: To evaluate the viability and biocompatibility of a novel, patented bioadhesive system for intrarenal embedding and retrieval of residual fragments after endoscopic lithotripsy. Complete stone clearance via active removal of residual fragments (RF) after intracorporeal laser lithotripsy may be time-consuming and fail in many cases. Therefore, the novel adhesive has been developed and evaluated for the first time in an in vivo pig model in the present work. METHODS: Four female domestic pigs underwent flexible ureteroscopy (RIRS) or percutaneous nephrolithotomy (PNL) under general anesthesia (8 kidneys, 4 × RIRS, 4 × PNL) evaluating the bioadhesive system...
January 24, 2018: World Journal of Urology
https://www.readbyqxmd.com/read/29364018/renal-pseudoaneurysm-a-rare-and-potentially-fatal-complication-following-ureteroscopy-and-laser-fragmentation-of-stones
#19
I Jubber, P R Patel, S Hori, S Al-Hayek
Ureteroscopy and laser fragmentation of stones is a commonly used method to treat ureteric and renal calculi. We report the exceedingly rare finding of a renal pseudoaneurysm in an interpolar renal artery following ureteroscopy and laser stone fragmentation, which was successfully managed with angioembolisation.
January 24, 2018: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/29325445/the-morbidity-of-ureteral-strictures-in-patients-with-prior-ureteroscopic-stone-surgery-multi-institutional-outcomes
#20
Philip Clark May, Ryan S Hsi, Henry H Tran, Marshall Stoller, Ben H Chew, Thomas Chi, Manint Usawachintachit, Brian D Duty, John L Gore, Jonathan D Harper
Purpose Nephrolithiasis is an increasingly common ailment in the United States. Ureteroscopic management has supplanted shockwave lithotripsy as the most common treatment of upper tract stone disease. Ureteral stricture is a rare but serious complication of stone disease and its management. The impact of new technologies and more widespread ureteroscopic management on stricture rates is unknown. We describe our experience in managing strictures incurred following ureteroscopy for upper tract stone disease. Materials and methods Records for patients managed at 4 tertiary care centers between December 2006 and October 2015 with the diagnosis of ureteral stricture following ureteroscopy for upper tract stone disease were retrospectively reviewed...
January 12, 2018: Journal of Endourology
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