keyword
MENU ▼
Read by QxMD icon Read
search

Lithotripter

keyword
https://www.readbyqxmd.com/read/28074231/development-of-a-novel-magnetic-resonance-imaging-acquisition-and-analysis-workflow-for-the-quantification-of-shock-wave-lithotripsy-induced-renal-hemorrhagic-injury
#1
Rajash K Handa, Paul R Territo, Philip M Blomgren, Scott A Persohn, Chen Lin, Cynthia D Johnson, Lei Jiang, Bret A Connors, Gary D Hutchins
The current accepted standard for quantifying shock wave lithotripsy (SWL)-induced tissue damage is based on morphometric detection of renal hemorrhage in serial tissue sections from fixed kidneys. This methodology is time and labor intensive and is tissue destructive. We have developed a non-destructive magnetic resonance imaging (MRI) method that permits rapid assessment of SWL-induced hemorrhagic lesion volumes in post-mortem kidneys using native tissue contrast to reduce cycle time. Kidneys of anesthetized pigs were targeted with shock waves using the Dornier Compact S lithotripter...
January 10, 2017: Urolithiasis
https://www.readbyqxmd.com/read/28073204/who-apparently-more-spends-in-reality-spends-less-spending-a-little-more-for-the-rental-of-the-extracorporeal-lithotripter-can-save-a-lot-about-the-days-of-hospitalization-for-urinary-stones
#2
Giuseppe Albino, Francesco Albergo
OBJECTIVE: The right to health (according to the Article 32 of the Italian Republic Constitution) is financially conditioned; for this reason the National Health System (NHS) has the objective of rationalize health expenditure according to the criteria of efficiency, effectiveness and economy. This paper is an example of rationalization concerning the extracorporeal shock wave lithotripsy (ESWL). MATERIALS AND METHODS: Hospital admissions for urinary stones were taken into account...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28012707/effectiveness-of-ureteroscopy-among-the-youngest-patients-one-centre-s-experience-in-an-endemic-region-in-turkey
#3
Mehmet Mazhar Utanğaç, Mansur Dağgülli, Onur Dede, Ahmet Ali Sancaktutar, Yaşar Bozkurt
BACKGROUND: In recent years, the incidence of urinary stone disease reportedly has been increasing. The use of shockwave lithotripsy has seen low success rates, the inefficacy of a single session, and the need for general anaesthesia in children; additionally, children are exposed to radiation. These suboptimal treatment conditions have all led to ureteroscopy (URS) becoming the treatment method of choice for paediatric ureter stones. The aim of this study is to examine the effectiveness of 4...
November 19, 2016: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/27981926/stone-free-rate-after-extracorporeal-shockwave-lithotripsy-in-the-management-of-pediatric-renal-stones-in-lower-pole-and-other-locations-a-comparative-study
#4
Nadeem Iqbal, Shujah Muhammad, Warda Zafar, Ravale Tashfeen, Javaria Faiz, Aisha Hasan, Ijaz Hussain, Saeed Akhter
OBJECTIVE: To determine a difference in the stone-free-rate among different renal locations in children after extracorporeal shockwave lithotripsy (ESWL). STUDY DESIGN: A descriptive study. PLACE AND DURATION OF STUDY: Urology Department, Shifa International Hospital, Islamabad, Pakistan, from January 2007 to June 2015. METHODOLOGY: The study included children who underwent ESWL, divided into three groups based on location of stones in kidney as group A (lower pole stones), group B (upper and mid pole stones) and group C (renal pelvis stone), respectively...
November 2016: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/27913238/contemporary-ureteroscopic-management-of-renal-stones
#5
REVIEW
S Proietti, T Knoll, G Giusti
The advancements in the endourological armamentarium and the evolution of ureteroscopes with the advent of fiberoptic first and then digital technology, the introduction of holmium laser lithotripters, together with the increasing number of requests for minimally invasive procedures has ameliorated outcomes, patients' safety and comfort, making the use of flexible ureteroscopy for urinary calculi increasingly attractive and widespread among urological community. Due to its high stone-free rates and low morbidity, flexible ureteroscopy has become a viable option for the treatment of renal stones...
December 2016: International Journal of Surgery
https://www.readbyqxmd.com/read/27890653/recent-advances-in-lithotripsy-technology-and-treatment-strategies-a-systematic-review-update
#6
REVIEW
H E Elmansy, J E Lingeman
INTRODUCTION: Shock wave lithotripsy (SWL) is a well - established treatment option for urolithiasis. The technology of SWL has undergone significant changes in an attempt to better optimize the results while reducing failure rates. There are some important limitations that restrict the use of SWL. In this review, we aim to place these advantages and limitations in perspective, assess the current role of SWL, and discuss recent advances in lithotripsy technology and treatment strategies...
December 2016: International Journal of Surgery
https://www.readbyqxmd.com/read/27885825/multiphase-fluid-solid-coupled-analysis-of-shock-bubble-stone-interaction-in-shockwave-lithotripsy
#7
K G Wang
A novel multiphase fluid-solid coupled computational framework is applied to investigate the interaction of a kidney stone immersed in liquid with a lithotripsy shock wave (LSW) and a gas bubble near the stone. The main objective is to elucidate the effects of a bubble in the shock path to the elastic and fracture behaviors of the stone. The computational framework couples a finite volume two-phase computational fluid dynamics (CFD) solver with a finite element (FE) computational solid dynamics (CSD) solver...
November 24, 2016: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/27863458/benchtop-and-initial-clinical-evaluation-of-the-shockpulse-stone-eliminator-in-percutaneous-nephrolithotomy
#8
Ben H Chew, Andre A Matteliano, Thomas de Los Reyes, Michael E Lipkin, Ryan F Paterson, Dirk Lange
PURPOSE: Standardized bench testing of the new ShockPulse™ intracorporeal lithotripter was performed against three commercially available lithotripsy systems to determine differences and nuances in performance. MATERIALS AND METHODS: The ShockPulse intracorporeal lithotripter was tested against the LUS-2™, CyberWand,™ and EMS LithoClast™ in a standardized bench setting using hard (Ultracal-30) and soft (plaster of Paris) stone phantoms. An in vitro kidney model was used to record the time needed to fragment stone samples into retrievable-sized pieces...
February 2017: Journal of Endourology
https://www.readbyqxmd.com/read/27845548/safety-and-efficacy-of-pneumatic-lithotripters-versus-holmium-laser-on-multiple-ureteral-calculi
#9
COMPARATIVE STUDY
Hakan Ercil, Ergun Alma, Okan Bas, Umut Unal, Nevzat Can Sener, Ediz Vuruskan, Aykut Buğra Senturk, Zafer Gokhan Gurbuz
BACKGROUND: Different energy sources can be used for ureteroscopic stone fragmentation, such as pneumatic, ultrasonic, laser or electrohydraulic. The aim of this study was to compare the efficacy and safety of pneumatic lithotripters versus Ho: YAG laser in the treatment of multiple stones in the distal ureter. METHODS: A retrospective evaluation was done using the data of patients to whom ureteroscopic lithotripsy (URL) was applied for ureter stones in our clinic...
November 2016: Archives of Iranian Medicine
https://www.readbyqxmd.com/read/27826048/innovations-in-percutaneous-nephrolithotomy
#10
REVIEW
Thomas Tailly, John Denstedt
Technical innovations in all aspects of percutaneous nephrolithotomy have changed the field considerably. The current review is aimed at reporting on the most recent advancements in the field of percutaneous nephrolithotomy. Improvements in CT imaging and the possibility of 3D rendering have dethroned the intravenous pyelogram as gold standard for pre-operative imaging. Where gaining access in the lower pole in prone position with telescopic metal dilators, placing a 30F tract used to be standard, the plethora of alternatives provides the trained surgeon with a large armamentarium to tackle any obstacle...
December 2016: International Journal of Surgery
https://www.readbyqxmd.com/read/27819138/super-mini-percutaneous-nephrolithotomy-in-the-treatment-of-pediatric-nephrolithiasis-evaluation-of-the-initial-results
#11
Yongda Liu, Wenqi Wu, Aierken Tuerxun, Yang Liu, Abulizi Simayi, Jinxing Huang, Abudukahaer Batuer, Yizhou Zhou, Jiawei Luo, Wen Zhong, Zhijian Zhao, Wei Zhu, Guohua Zeng
OBJECTIVE: To evaluate the efficacy and safety of super-mini percutaneous nephrolithotomy (SMP) in the treatment of pediatric kidney stones. PATIENTS AND METHODS: We reviewed the records of 111 children with renal stones treated with SMP technique in four different centers between September 2014 and September 2015. The indications for SMP treatment in all these kids were either previously failed shock wave lithotripsy or retrograde intrarenal surgery approaches, according to their parents' preferences...
December 5, 2016: Journal of Endourology
https://www.readbyqxmd.com/read/27800291/comparison-of-extracorporeal-shock-wave-lithotripsy-for-urolithiasis-between-children-and-adults-a-single-centre-study
#12
Nadeem Iqbal, Salman Assad, Joshua Rahat Aleman Bhatti, Aisha Hasan, Muhammad Usman Shabbir, Saeed Akhter
OBJECTIVE: To retrospectively evaluate the effectiveness of extracorporeal shock wave lithotripsy (ESWL) for urolithiasis and compare the results between children and adults. MATERIALS AND METHODS: From January 2011 to January 2015 (four years), ESWL was performed in 104 children and 300 adults for urolithiasis. MODULITH(®) SLX-F2 lithotripter (Storz Medical AG, Tägerwilen, Switzerland) equipment was used for ESWL. The stone-free rates, the number of ESWL sessions required, complication rates and ancillary procedures used were evaluated in a comparative manner...
September 29, 2016: Curēus
https://www.readbyqxmd.com/read/27761633/does-a-retropulsion-prevention-device-equalize-the-surgical-success-of-ho-yag-laser-and-pneumatic-lithotripters-for-upper-ureteral-stones-a-prospective-randomized-study
#13
Sahin Bagbanci, Mumtaz Dadali, Yeliz Dadalı, Levent Emir, Ozkan Gorgulu, Ayhan Karabulut
To establish if a retropulsion prevention device for ureteral stones equalizes surgical success and push-back rates of Ho:YAG laser and pneumatic lithotripters for upper ureteral stones. Patients with upper ureteral stones (n = 267) were treated endoscopically at the Department of Urology between April 2014 and December 2015. Patients were randomly assigned to pneumatic and Ho:YAG laser lithotripters as group-1 and group-2, respectively. Lithotripsy was performed with Stone Cone(TM) in both groups. The surgical success rate on the first postoperative day was 81...
October 19, 2016: Urolithiasis
https://www.readbyqxmd.com/read/27759736/the-future-of-ureteroscopy
#14
Ben H Chew, Dirk Lange
Open ureterolithotomy and pyelolithotomy used to be first line therapy for treating kidney and ureteral stones. With the advent of shockwave lithotripsy, open stone surgery became less prevalent, but once ureteroscopy became more prevalent, open stone surgery became all but extinct. Advances in smaller, more flexible endoscopes and improvements in intracorporeal lithotripters, ureteroscopy has become a mainstay of therapy for kidney stones. The holmium:yttrium-aluminium-garnet laser can be utilized through flexible instruments and fragments any stone no matter what it is composed of...
December 2016: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/27758111/a-novel-device-to-prevent-stone-fragment-migration-during-percutaneous-lithotripsy-results-from-an-in-vitro-kidney-model
#15
Jodi A Antonelli, Heather Beardsley, Stephen Faddegon, Monica Sc Morgan, Jeffrey C Gahan, Margaret S Pearle, Jeffrey A Cadeddu
PURPOSE: We developed a polyethylene sack (the PercSac) that fits over the shaft of a rigid nephroscope and is deployed into the collecting system to capture a stone and contain fragments during PCNL. We previously reported results using the PercSac in a percutaneous cystolithopaxy model. Herein we compare the efficiency of stone fragmentation with and without the PercSac in an anatomically correct in vitro PCNL model. MATERIALS AND METHODS: The PCNL model consisted of a human collecting system model created on a 3-D printer...
October 19, 2016: Journal of Endourology
https://www.readbyqxmd.com/read/27736195/comparison-of-the-nanopulse-lithotripter-to-the-holmium-laser-stone-fragmentation-efficiency-and-impact-on-flexible-ureteroscope-deflection-and-flow
#16
Adam Geoffrey Kaplan, Tony T Chen, Georgy Sankin, Chen Yang, Joanne Andrea Dale, W Neal Simmons, Pei Zhong, Glenn M Preminger, Michael Eric Lipkin
INTRODUCTION: The Nanopulse Lithotripter (NPL, Lithotech Medical, Israel) is a novel intracorporeal device that uses a nanosecond duration electrical discharge through a reusable flexible coaxial probe to endoscopically fragment urinary stones. This device was compared to a holmium laser lithotripsy (HoL) with regards to stone fragmentation efficiency (SFE) and its impact on flexible ureteroscope (URS) deflection and flow of irrigation. METHODS: Using a custom bench model, a 6mm Begostone cylindrical phantom (mixture 5:2) was confined under 0...
October 13, 2016: Journal of Endourology
https://www.readbyqxmd.com/read/27717761/quantitative-prediction-of-stone-fragility-from-routine-dual-energy-ct-ex-vivo-proof-of-feasibility
#17
Andrea Ferrero, Juan C Montoya, Lisa E Vaughan, Alice E Huang, Ian O McKeag, Felicity T Enders, James C Williams, Cynthia H McCollough
RATIONALE AND OBJECTIVES: Previous studies have demonstrated a qualitative relationship between stone fragility and internal stone morphology. The goal of this study was to quantify morphologic features from dual-energy computed tomography (CT) images and assess their relationship to stone fragility. MATERIALS AND METHODS: Thirty-three calcified urinary stones were scanned with micro-CT. Next, they were placed within torso-shaped water phantoms and scanned with the dual-energy CT stone composition protocol in routine use at our institution...
December 2016: Academic Radiology
https://www.readbyqxmd.com/read/27704184/mini-percutaneous-nephrolithotomy-for-stones-in-anomalous-kidneys-a-prospective-study
#18
Sanjay Khadgi, Babu Shrestha, Hamdy Ibrahim, Sunil Shrestha, Mohammed S ElSheemy, Ahmed M Al-Kandari
To evaluate safety and efficacy of minipercutaneous nephrolithotomy (Mini-PNL) in management of stones in different types of renal anomalies. Patients with stones ≥2 cm or SWL-resistant stones in anomalous-kidneys treated by Mini-PNL between March 2010 and September 2012 were included prospectively. Mini-PNL was done under regional anesthesia in prone position with fluoroscopic guidance through 18 Fr sheath using semirigid ureteroscope (8.5/11.5 Fr) and pneumatic lithotripter. All patients were followed-up for 2-3 years...
October 4, 2016: Urolithiasis
https://www.readbyqxmd.com/read/27686059/a-randomised-controlled-trial-evaluating-renal-protective-effects-of-selenium-with-vitamins-a-c-e-verapamil-and-losartan-against-extracorporeal-shockwave-lithotripsy-induced-renal-injury
#19
Ahmed R El-Nahas, Mohamed M Elsaadany, Diaa-Eldin Taha, Ahmed M Elshal, Mohamed Abo El-Ghar, Amani M Ismail, Essam A Elsawy, Hazem H Saleh, Ehab W Wafa, Amira Awadalla, Tamer S Barakat, Khaled Z Sheir
OBJECTIVE: To evaluate the protective effects of selenium with vitamins A, C and E (selenium ACE, i.e. antioxidants), verapamil (calcium channel blocker), and losartan (angiotensin receptor blocker) against extracorporeal shockwave lithotripsy (ESWL)-induced renal injury. PATIENTS AND METHODS: A randomised controlled trial was conducted between August 2012 and February 2015. Inclusion criteria were adult patients with a single renal stone (<2 cm) suitable for ESWL...
January 2017: BJU International
https://www.readbyqxmd.com/read/27649337/lithotripter-shock-wave-interaction-with-a-bubble-near-various-biomaterials
#20
S W Ohl, E Klaseboer, A J Szeri, B C Khoo
Following previous work on the dynamics of an oscillating bubble near a bio-material (Ohl et al 2009 Phys. Med. Biol. 54 6313-36) and the interaction of a bubble with a shockwave (Klaseboer et al 2007 J. Fluid Mech. 593 33-56), the present work concerns the interaction of a gas bubble with a traveling shock wave (such as from a lithotripter) in the vicinity of bio-materials such as fat, skin, muscle, cornea, cartilage, and bone. The bubble is situated in water (to represent a water-like biofluid). The bubble collapses are not spherically symmetric, but tend to feature a high speed jet...
October 7, 2016: Physics in Medicine and Biology
keyword
keyword
87223
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"