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Lithotripter

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https://www.readbyqxmd.com/read/28492152/effect-of-stone-composition-on-the-outcomes-of-semi-rigid-ureteroscopy-using-holmium-yttrium-aluminum-garnet-laser-or-pneumatic-lithotripsy
#1
Mustafa Kadihasanoglu, Ugur Yucetas, Mehmet Gokhan Culha, Erkan Erkan, Mahmut Gokhan Toktas
OBJECTIVE: To compare the effectiveness of laser lithotripsy (LL) and pneumatic lithotripters (PL) in calcium oxalate (CaOx) and calcium phosphate (CaP) stones and assess whether these stone compositions affect the outcomes of LL and PL. STUDY DESIGN: Comparative, descriptive study. PLACE AND DURATION OF STUDY: Istanbul Training and Research Hospital, Turkey, from August 2010 to August 2015. METHODOLOGY: A total of 114 patients underwent ureteroscopy using LL and PL...
April 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28474533/ct-texture-analysis-of-ex-vivo-renal-stones-predicts-ease-of-fragmentation-with-shockwave-lithotripsy
#2
Helen Wei Cui, Wout Devlies, Samuel Ravenscroft, Hendrik Heers, Andrew Freidin, Robin Cleveland, Balaji Ganeshan, Ben W Turney
Introduction Understanding the factors affecting success of shock wave lithotripsy (SWL) would improve informed decision-making on the most appropriate treatment modality for an individual patient. Although stone size and skin-to-stone distance do correlate with fragmentation efficacy, it has been shown that stone composition and architecture, as reflected by structural heterogeneity on CT, are also important factors. This study aims to determine if CT Texture Analysis (CTTA)-a novel, non-destructive, and objective tool that generates statistical metrics reflecting stone heterogeneity-could have utility in predicting likelihood of SWL success...
May 5, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28457667/extracorporeal-shock-wave-lithotripsy-eswl-monotherapy-in-children-predictors-of-successful-outcome
#3
G Alsagheer, M S Abdel-Kader, A M Hasan, O Mahmoud, O Mohamed, A Fathi, M Abass, A Abolyosr
INTRODUCTION AND OBJECTIVES: Although extracorporeal shock wave lithotripsy (ESWL) is the first choice for pediatric renal calculi <2 cm, the success rate after the first session is low. This is in contrast to other minimally invasive procedures like percutanous nephrolithotomy (PCNL) and retrograde intrarenal surgery (RIRS), which have higher rates of success. Therefore, the present study sought to identify predictors of success after one session of ESWL. PATIENTS AND METHODS: A prospective study including 100 children with renal stone burden <2 cm who underwent ESWL at the present institution...
April 18, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28345515/treatment-of-salivary-stones-by-intraductal-pneumatic-lithotripsy-a-preliminary-presentation-of-the-stonebreaker-with-sterile-bag-covering
#4
P A Oddon, G Royer, N Graillon, F Marchal, C Chossegros, J M Foletti
INTRODUCTION: Sialendoscopy has changed the management of obstructive sialadenitis. Nowadays, minimally invasive techniques evolve to preserve salivary gland function. Intraductal lithotripsy allows stones fragmentation and retrieval without opening the salivary duct. We report our experience with the StoneBreaker (SB), a new lithotripter with improvement using a sterile bag that permits reuse of the SB without passing to sterilization. TECHNICAL NOTE: The non-sterilized SB was used into a sterile camera sleeve in 5 patients, 3 submandibular lithiases and 2 parotid lithiases...
April 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28340536/comparison-of-broad-vs-narrow-focal-width-lithotripter-fields
#5
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...
May 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28337482/efficacy-and-safety-of-novel-digital-single-operator-peroral-cholangioscopy-guided-laser-lithotripsy-for-complicated-biliary-stones
#6
John Ct Wong, Raymond Sy Tang, Anthony Yb Teoh, Joseph Jy Sung, James Yw Lau
Background/study aims Laser lithotripsy can effectively fragment complicated biliary stones, but current cholangioscopes are limited by fragility, restricted mobility or moderate visual resolution. The efficacy and safety of a new digital single-operator peroral cholangioscope to guide laser lithotripsy were evaluated. Patients and methods In this prospective single-center series, consecutive patients with complicated biliary stones, defined as impacted stones > 1.5 cm in size and wider than the more distal common bile duct, or stones that failed extraction by basket mechanical lithotripsy, underwent ERCP and SpyGlass DS peroral cholangioscope (Boston Scientific, Marlborough, United States)-guided laser lithotripsy...
January 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28300033/-current-status-of-extracorporeal-shock-wave-lithotripsy-in-urinary-lithiasis
#7
Jose Gregorio Pereira-Arias, Mikel Gamarra-Quintanilla, Luis Felipe Urdaneta-Salegui, Jorge Alberto Mora-Christian, Andrea Sánchez-Vazquez, Ander Astobieta-Odriozola, Gaspar Ibarluzea-González
Over the last decade, urinary lithiasis' prevalence has dramatically increased due to diet and lifestyle changes, growing 10.6% and 7.1% in men and women respectively. Extracorporeal shock wave lithotripsy has lost relevance in current practice due to endoscopic device development and unpredictability of results. Instrument miniaturization is leading to an increase of the percutaneous approach of increasingly smaller stones, while most flexible ureteroscopes durability and digitalization has allowed urologists to address larger stones...
March 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28299318/application-of-pneumatic-lithotripter-and-holmium-laser-in-the-treatment-of-ureteral-stones-and-kidney-stones-in-children
#8
COMPARATIVE STUDY
Marcin Życzkowski, Rafał Bogacki, Krzysztof Nowakowski, Bartosz Muskała, Paweł Rajwa, Piotr Bryniarski, Andrzej Paradysz
Objective. Treatment options for urolithiasis in children include URSL and RIRS. Various types of energy are used in the disintegration of deposits in these procedures. We decided to evaluate the usefulness of URSL and RIRS techniques and compare the effectiveness of pneumatic lithotripters and holmium lasers in the child population based on our experience. Materials and Methods. One hundred eight (108) children who underwent URSL and RIRS procedures were enrolled in the study and divided into two (2) groups according to the type of energy used: pneumatic lithotripter versus holmium laser...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28247739/-extracorporeal-shock-wave-lithotripsy-benefits-limitationsand-prospects
#9
V N Pavlov, A V Alekseev, A M Pushkarev, R S Iskhakova, M R Garipov, A A Makhmutyanova
The article provides an overview of current approaches to the treatment of urolithiasis using extracorporeal shock wave lithotripsy (ESWL). The clinical aspects of use of ESWL in patients with urolithiasis are reported; the main technical specifications of lithotripters are described; the limitations and contraindications for lithotripsy are discussed. Based on the analysis of the main barriers to successful ESWL, data on current trends in the development of this method and increase of its efficacy are presented...
August 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28247327/extracorporeal-shock-wave-therapy-current-perspectives-and-future-directions
#10
REVIEW
Andrew C Lawler, Eric M Ghiraldi, Carmen Tong, Justin I Friedlander
PURPOSE OF REVIEW: Since its introduction, extracorporeal shock wave lithotripsy (ESWL) has undergone a variety of changes; however, it remains one of the most utilized treatment modalities for urolithiasis. The goal of this review is to provide the practicing urologist an update on contemporary trends, new technologies, and related controversies in utilizing ESWL for stone treatment. RECENT FINDINGS: ESWL use has come under scrutiny with a shift in focus to cost-effectiveness and healthcare outcomes...
April 2017: Current Urology Reports
https://www.readbyqxmd.com/read/28245537/-the-efficacy-of-a-released-ultrasonic-lithotripsy-in-percutaneous-nephrolithotomy-randomized-trial-comparing-swiss-lithoclast%C3%A2-master-versus-swiss-lithoclast%C3%A2
#11
Masashi Kubota, Toru Kanno, Yusuke Murata, Satoshi Funada, Hiromasa Sakamoto, Ryuichi Nishiyama, Takashi Okada, Toshiya Akao, Yoshihito Higashi, Hitoshi Yamada
We prospectively randomized total 29 patients with renal stones into two groups between Aug 2014 and March 2016. The US group was treated using a ultrasonic lithotripter (Swiss LithoClast® Master) and the PN group was treated with a pneumatic lithotripter (Swiss LithoClast® ). We compared treatment outcomes in these groups. The US group consisted of 17 patients and the PN group 12 patients. There was no significant difference between the groups in baseline characteristics (age, sex, body mass index, side, stone size, and density)...
January 2017: Hinyokika Kiyo. Acta Urologica Japonica
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
#12
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
#13
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
#14
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...
February 2017: 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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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