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Journal of Endourology

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https://www.readbyqxmd.com/read/28340540/use-of-the-moses-technology-to-improve-holmium-laser-lithotripsy-outcomes-a-preclinical-study
#1
Mostafa M Elhilali, Shadie Badaan, Ahmed Ibrahim, Sero Andonian
OBJECTIVE: To evaluate in vitro and in vivo effects of Moses technology in Holmium laser and to compare it with the Regular mode in terms of lithotripsy efficiency and laser-tissue interactions. METHODS: The Lumenis(®) Pulse™ P120H holmium laser system together with Moses D/F/L fibers were used to compare the Regular mode with the Moses modes in stone retropulsion by using a high-speed camera, and stone ablation efficiency. In addition, a porcine ureteroscopy model was used to assess stone fragmentation and dusting as well as laser-tissue interaction with the ureteral wall...
April 25, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28340536/comparison-of-broad-vs-narrow-focal-width-lithotripter-fields
#2
Yifei Xing, Tony T Chen, Walter N Simmons, Georgy Sankin, Franklin H Cocks, Michael E Lipkin, Glenn M Preminger, Pei Zhong
OBJECTIVE: To investigate the impact of lithotripter focal width on stone fragmentation. MATERIALS AND METHODS: A modified reflector was used to reduce -6 dB beam size of the HM3 lithotripter, while increasing concomitantly peak pressure. Fragmentation in vitro was assessed with modified and original reflectors using BegoStone phantoms. A membrane holder was used to mimic lithotripsy in vivo, and a matrix holder was used to assess variations of fragmentation power in the focal plane of the lithotripter field...
April 21, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28340535/continuation-of-renin-angiotensin-aldosterone-inhibitors-does-not-impact-renal-function-among-patients-undergoing-percutaneous-nephrolithotomy
#3
Nishant Patel, Benjamin R Cohen, Shubha De, Ganesh Kartha, Ina Li, Carl Sarkissian, Juan Calle, Manoj Monga
OBJECTIVE: In the perioperative period, renin-angiotensin-aldosterone system (RAAS) inhibitors may result in cardiovascular and renal functional changes. We sought to determine the acute and chronic renal functional and blood pressure effects of continuing or withdrawing angiotensin-converting enzyme inhibitors (ACE-I) and angiotensin receptor blockers (ARBs) after percutaneous nephrolithotomy (PCNL). MATERIALS AND METHODS: This was a retrospective review of all patients undergoing PCNL at our institution from 2002 to 2013...
April 20, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28326799/glomerular-loss-after-renal-radiofrequency-ablation-are-comparable-to-30-minutes-of-warm-ischemia
#4
Leonardo Albuquerque Dos Santos Abreu, José Aurelino Damasceno-Ferreira, Waldemar Silva Costa, Marco Aurélio Pereira-Sampaio, Francisco José Barcellos Sampaio, Diogo Benchimol de Souza
PURPOSE: To compare, with stereological methods, the glomerular loss in kidneys submitted to radiofrequency ablation (RFA) or warm ischemia. MATERIALS AND METHODS: Twenty-six male pigs were divided into three groups. Eight animals were allocated in the sham group, which was submitted to laparoscopic dissection of the left renal hilum, without renal ischemia. Eight animals were allocated in the ischemia group, which had the left renal hilum clamped for 30 minutes under laparoscopic access...
April 18, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28292191/upper-calyx-accessibility-through-a-lower-calyx-access-is-not-influenced-by-morphometric-and-clinical-factors-in-supine-percutaneous-nephrolithotomy
#5
Mario Sofer, Yazeed Barghouthy, Yuval Bar-Yosef, Ishay Mintz, Silvia Proietti, Ronit Tsemah, Amir Horkin, Haim Matzkin, Guido Giusti
OBJECTIVE: To assess whether morphometric and clinical parameters influence accessibility to the upper calyx through a lower calyx tract during supine percutaneous nephrolithotomy (SPCNL). PATIENTS AND METHODS: Data for 114 consecutive SPCNLs performed between June 2014 and March 2016 in an academic medical center were analyzed. Successful approachability was defined as rigid nephroscopic access to the upper calyx introduced through a lower calyx access as attested by direct visualization of the upper calyx papillae and position of the nephroscope on intraoperative pyelography...
April 14, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28401803/imaging-advances-for-urolithiasis
#6
Joanne Andrea Dale, Rajan T Gupta, Daniele Marin, Michael Eric Lipkin, Glenn M Preminger
The prevalence of urinary stones in the United States has been described as 1 in 11 persons reporting a history of stones. Imaging plays a crucial role in diagnosis, management and follow-up for these patients and imaging technology over the last 100 years has advanced as the disease prevalence has increased. Computed tomography (CT) remains the gold standard for imaging urolithiasis and changes in this technology, with the addition of multidetector CT and dual-energy CT, as well as the changes in utilization of CT, have decreased the radiation dose encountered by patients and allowed for improved stone detection...
April 12, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28292209/risks-and-benefits-of-postoperative-double-j-stent-placement-after-ureteroscopy-results-from-the-clinical-research-office-of-endourological-society-ureteroscopy-global-study
#7
Ahmet Y Muslumanoglu, Sven Fuglsig, Antonio Frattini, Gaston Labate, Robert B Nadler, Alexey Martov, Carson Wong, Jean J M C H de la Rosette
PURPOSE: Double-J stent placement after stone removal by ureteroscopy (URS) is common and recommended in many cases but debatable in others. In this study, the risks and benefits of postoperative Double-J stent placement in URS stone treatment procedures undertaken in current clinical practice are examined. MATERIALS AND METHODS: The Clinical Research Office of Endourological Society (CROES) URS is a prospective, observational, international multicenter study, in which patients are candidates for URS as primary treatment or after failure of prior treatment for ureteral and renal stones...
April 12, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28269994/holmium-yttrium-aluminum-garnet-laser-and-guidewires-is-there-a-durability-difference-among-guidewires-against-laser-energy-an-in-vitro-experimental-study
#8
Sahin Bagbanci
PURPOSE: To evaluate the durability differences between five different type of guidewires against laser energy in an in vitro experimental ureteral model. METHODS: The study was performed at the Department of Urology, Medicine Faculty of Ahi Evran University. An in vitro experimental ureteral model was created for the work; a silicon ureteral model in a saline-filled container. Experiments were performed on five different type of guidewires; ZIPwire, Sensor polytetrafluoroethylene (PTFE) Nitinol guidewire, Roadrunner(®) PC wire guide, Amplatz Super Stiff, and Zebra Urologic Guidewire...
April 10, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28393623/clinical-comparison-of-conventional-and-mobile-endockscope-videocystoscopy-using-an-air-or-fluid-medium
#9
Rahul Dutta, Renai Yoon, Roshan M Patel, Kyle Spradling, Zhamshid Okhunov, William Sohn, Hak J Lee, Jaime Landman, Ralph Clayman
OBJECTIVE: To compare conventional videocystoscopy to a novel and affordable (approximately $45) mobile cystoscopy system, the Endockscope. We evaluated the Endockscope system using both fluid (Endockscope-Fluid) and air (Endockscope-Air) to fill the bladder in an effort to expand the global range of flexible cystoscopy. METHODS: The Endockscope system is comprised of a portable 1,000 lumen LED self-contained cordless light source and a 3D printed adaptor which connects a mobile phone to a flexible fiberoptic cystoscope...
April 8, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28385075/propensity-score-matched-comparison-of-partial-to-whole-gland-cryotherapy-for-intermediate-risk-prostate-cancer-an-analysis-of-the-cold-registry-data
#10
Kae Jack Tay, Thomas J Polascik, Ahmed El-Shafei, Efrat Tsivian, J Stephen Jones
OBJECTIVE: To compare the oncological and functional outcomes of partial versus whole-gland cryotherapy for men with intermediate-risk prostate cancer. SUBJECTS/PATIENTS: Men with intermediate-risk prostate cancer treated with primary prostate cryotherapy from 1993-2013 were selected from the Cryo On-Line Data Registry for a 1:1 matched comparison between those undergoing whole-gland and partial prostate cryotherapy (targeted-ablation, unilateral/bilateral nerve-sparing ablations)...
April 6, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28385045/long-term-outcomes-of-laparoscopic-nephro-ureterectomy-with-transurethral-circumferential-excision-of-the-ureteric-orifice-for-urothelial-carcinoma
#11
Aakash Pai, Muddassar Hussain, Richard G Hindley, Amr Emara, Neil Barber
Introduction When performing open or laparoscopic nephroureterectomy (LNU), the optimal way to excise the distal ureter remains controversial. There are concerns that primary endoscopic detachment of the intramural ureter is associated with adverse outcomes. Existing studies have limited patient numbers and inadequate oncologic follow up. We provide our institutions experience of this technique. Methods Data was collected prospectively on 59 patients (37 men) who underwent LNU over a 10 year period at a single centre using a standardized technique; initial endoscopic circumferential release of the distal ureter and bladder cuff followed by retroperitoneal en bloc LNU...
April 6, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28385037/new-for-old-coagulum-lithotomy-versus-a-novel-bioadhesive-for-complete-removal-of-stone-fragments-in-a-comparative-study-in-an-ex-vivo-porcine-model
#12
Dominik Stefan Schoeb, Martin Schoenthaler, Daniel Schlager, Ralf Petzold, Katharina Richter, Ingo Grunwald, Ulrich Wetterauer, Arkadiusz Miernik, Simon Hein
OBJECTIVES: To evaluate a recently reported new bioadhesive system for the retrieval of small residual fragments after intracorporeal lithotripsy, we systematically compared this system with coagulum lithotomy in retrograde intrarenal surgery. MATERIALS AND METHODS: We extracted 30 human stone fragments (≤1 mm) in an ex vivo porcine kidney model using a flexible ureteroscope for three groups: 1) the novel bioadhesive, 2) autologous blood as a natural adhesive, and 3) (control group) a conventional retrieval basket...
April 6, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28385032/the-transparency-of-irrigation-fluids-used-in-endoscopic-surgery
#13
Ilan Gielchinsky, Dov Pode, Mordechai Duvdevani, Vladimir Yutkin, Yehezkel Landau, Guy Hidas, Ofer N Gofrit
PURPOSE: Transurethral surgery has been traditionally done using the non-electrolyte, isotonic 1.5% glycine solution as irrigation fluid. The emergence of modern technologies, which can be applied with electrolyte solutions, such as bipolar resection and LASER evaporation, as well as the worry of transurethral resection syndrome have driven urologists away from glycine towards the use of normal saline. Differences in the transparencies of these fluids have not been studied. MATERIALS AND METHODS: The ability to resolve two bars at 1 mm apart using a 30 cystoscope lens immersed in different solutions was studied...
April 6, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28384011/tadalafil-facilitates-the-distal-ureteral-stone-expulsion-a-meta-analysis
#14
Yunjin Bai, Yubo Yang, Xiaoming Wang, Yin Tang, Ping Han, Jia Wang
OBJECTIVE: To assess the efficacy and safety of tadalafil in facilitating the spontaneous passage of distal ureteral stones. METHODS: The relevant studies were identified by searching MEDLINE, EMBASE, and the Cochrane Central Register of Controlled Trials up to November 2016. Randomized controlled trials evaluating effects of tadalafil for distal ureteral stones were included. RESULTS: Six publications involving 921 patients were included...
April 6, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28381117/a-multi-centered-propensity-matched-analysis-comparing-laparoscopic-and-open-surgery-for-pt3a-renal-cell-carcinoma
#15
Premal Patel, Jasmir G Nayak, Zhihui Liu, Olli Saarela, Michael Jewett, Ricardo A Rendon, Anil Kapoor, Peter Black, Simon Tanguay, Jun Kawakami, Ronald Moore, Rodney H Breau, Chris Morash, Frederic Pouliot, Darrel Drachenberg
INTRODUCTION: To compare outcomes following laparoscopic renal surgery (LRS) and open renal surgery (ORS) in the treatment of pathological T3a (pT3a) renal cell carcinoma (RCC) using a propensity matched analysis. MATERIALS & METHODS: The Canadian Kidney Cancer Information System is a prospectively maintained database for patients diagnosed with RCC from 15 Canadian institutions. Patients treated for non-metastatic pT3a RCC between 2008-2015 were included. Propensity score matching for age, gender, tumor size, grade, histology and surgical approach were performed to compare laparoscopic radical and partial nephrectomy (LRN or LPN) with open radical or partial nephrectomy (ORN or OPN)...
April 5, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28381092/in-vitro-comparison-of-maximum-pressure-developed-by-irrigation-systems-in-a-kidney-model
#16
Silvia Proietti, Laurian Dragos, Bhaskar K Somani, Salvatore Butticè, Michele Talso, Esteban Emiliani, Mohammed Baghdadi, Guido Giusti, Olivier Traxer
PURPOSE: To evaluate in vitro the maximum pressure generated in an artificial kidney model when people of different levels of strengths used various irrigation systems. MATERIALS AND METHODS: Fifteen people were enrolled and divided in 3 groups based on their strengths. Individual strength was evaluated according to the maximum pressure each participant was able to achieve using an Encore™ Inflator. The irrigation systems evaluated were: T-FlowTM Dual Port, HilineTM, continuous flow single action pumping system (SAPSTM) with the system close and open, Irri-flo IITM, a simple 60-ml syringe and PeditrolTM ...
April 5, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28376688/predictors-of-improvement-in-storage-symptoms-at-three-years-after-120w-greenlight-high-performance-system-laser-treatment-for-benign-prostate-hyperplasia
#17
Won Hoon Song, Juhyun Park, Sung Yong Cho, Min Chul Cho, Hyeon Jeong, Hwancheol Son
PURPOSE: This study was conducted to investigate the indicators of recovery in storage symptoms after GreenLight High Performance System photoselective vaporization of the prostate (HPS-PVP) in men with benign prostate hyperplasia (BPH). METHODS: A total of 155 men with a baseline subtotal storage symptom score of international prostate symptom score (sIPSS) of greater than or equal to six, who underwent HPS-PVP and were followed-up on for up to three years, were included in this retrospective study...
April 4, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28264591/lubriglide-sequential-ureteral-dilators-%C3%A2-a-safe-and-effective-method-of-ureteral-dilation
#18
Christopher Mitchell, Joseph Kuebker, Benjamin McCormick, Tracy Marien, S Duke Herrell, Nicole L Miller
INTRODUCTION: During ureteroscopy (URS), ureteral dilation may be required to increase the likelihood of accessing the ureter to complete the procedure. Thus, we sought to assess the safety and efficacy of using Lubriglide sequential ureteral dilators(®) (Boston Scientific) to promote primary URS, without need for prestenting. PATIENTS AND METHODS: Retrospective review was performed of a consecutive series of patients undergoing primary URS by a single surgeon (N...
April 4, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28358254/risk-factors-related-with-retroperitoneal-laparoscopic-converted-to-open-nephrectomy-fof-nonfunctioning-renal-tuberculosis
#19
Bo Xu, Jinghai Hu, Anxiang Chen, Yuanyuan Hao, Guohui Liu, Chunxi Wang, Xiaoqing Wang
PURPOSE: The present study was designed to investigate the risk factors affecting the conversion to open surgery in retroperitoneal laparoscopic nephrectomy of nonfunctioning renal tuberculosis. PATIENTS AND METHODS: The records of 144 patients who undergone a retroperitoneal laparoscopic nephrectomy procedure by a single surgeon were retrospectively reviewed. The following factors including age, sex, Body Mass Index (BMI), diabetes status, hypertension status, side of kidney, size of kidney, degree of calcification, mild perirenal extravasation, contralateral hydronephrosis, the time of Anti-tuberculosis , and surgeon experience were analyzed...
March 30, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28355121/airway-resistance-in-patients-with-obstructive-sleep-apnea-syndrome-following-robotic-prostatectomy
#20
Wiebke Köhne, André Börgers, Michael Musch, Darko Kröpfl, Harald Groeben
BACKGROUND: Because minimally invasive surgery can improve postoperative recovery, it became the preferred technique for patients with significant comorbidities. However, steep Trendelenburg position and abdominal CO2-insufflation can lead to a significant increase in upper airway resistance and an alteration of overall lung function. In particular, patients who already suffer from an obstructive airway disease like obstructive sleep apnea syndrome (OSAS) might be at risk for postoperative airway complications...
March 29, 2017: Journal of Endourology
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