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Shockwave lithotripsy

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https://www.readbyqxmd.com/read/27911457/what-is-the-impact-of-extracorporeal-shock-wave-lithotripsy-on-semen-parameters-a-systematic-review-and-meta-analysis
#1
Mohammad H Radfar, Nasser Simforoosh, Mehdi Sotoudeh, Mehdi H Ramezani, Mohammad J Mollakoochakian, Maryam Nikravesh, Hamidreza Shemshaki
BACKGROUND: Extracorporeal shock wave lithotripsy (ESWL) is an important tool for the management of urolithiasis. The effects of shockwaves on tissues are established. The aim of this meta-analysis is to evaluate the microscopic semen characteristics of young men before and after ESWL treatment for lower ureteral calculi. METHODS: Literature searches were performed following the Cochrane guidelines. We conducted a systematic review and meta-analysis that included six trials that investigated the effects of ESWL on semen parameters, including sperm concentration, motility, and hematospermia...
December 2, 2016: Urologia
https://www.readbyqxmd.com/read/27885825/multiphase-fluid-solid-coupled-analysis-of-shock-bubble-stone-interaction-in-shockwave-lithotripsy
#2
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/27878116/minijfil%C3%A2-a-new-safe-and-effective-stent-for-well-tolerated-repeated-extracorporeal-shockwave-lithotripsy-or-ureteroscopy-for-medium-to-large-kidney-stones
#3
Benoit Vogt, Francois-Noel Desfemmes, Arnaud Desgrippes, Yves Ponsot
BACKGROUND: Percutaneous nephrolithotomy (PCNL) is recommended for treating staghorn stones or stones measuring > 20 mm. Extracorporeal shockwave lithotripsy (ESWL) or flexible ureteroscopy (URS) may be used as a complement. However, PCNL can cause trauma to the kidney parenchyma, and patients may find a noninvasive procedure, such as ESWL, to be more attractive. OBJECTIVES: The aim of this study was to evaluate the clinical efficiency of MiniJFil® stenting associated with ESWL or second-line URS for the treatment of medium-to-large kidney stones...
September 2016: Nephro-urology Monthly
https://www.readbyqxmd.com/read/27872901/reperfusion-and-compartment-syndrome-after-flexible-ureteroscopy-in-a-patient-with-an-iliac-vascular-graft
#4
Esteban Emiliani, Michele Talso, Edgar Beltrán-Suárez, Steeve Doizi, Olivier Traxer
Background: Flexible ureteroscopy (fURS) is one of the main treatment options for urolithiasis less than 2 cm. Although fURS has no relative contraindication, some anatomical factors may need to be considered, as not all patients are suitable for the regular lithotomy position (LP). We report the case of a patient with a right iliac vascular graft that after an fURS without intraoperative incidences developed a reperfusion syndrome of the right lower limb. Case Presentation: A 46-year-old male patient was referred for treatment and follow-up in the cystinuric clinic after being found to have a 3 cm pelvic stone with a Double-J catheter in place after two failed sessions of shockwave lithotripsy...
2016: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/27853528/recent-advances-in-understanding-and-managing-urolithiasis
#5
REVIEW
Walter L Strohmaier
During the last few years, there has been relevant progress in both understanding and managing urolithiasis. Our knowledge of stone formation has changed; although the importance of urine biochemistry was questioned by several investigators years ago, the decisive role of cellular processes (induced by oxidative stress) and the renal papilla has only recently been generally accepted as the most important step in stone formation. For calcium oxalate urolithiasis, the formation of papillary calcifications plays a key role and is of prognostic relevance...
2016: F1000Research
https://www.readbyqxmd.com/read/27824271/endoscopic-evidence-that-randall-s-plaque-is-associated-with-surface-erosion-of-the-renal-papilla
#6
Andrew Cohen, Michael Borofsky, Blake B Anderson, Casey A Dauw, Dan Gillen, Glenn S Gerber, Elaine M Worcester, Fred Coe, James E Lingeman
OBJECTIVE: To assess the reliability and precision of an endoscopic grading scale to identify renal papillary abnormalities across a spectrum of equipment, locations, graders, and patients. MATERIALS AND METHODS: Intra- and inter-observer reliability of the papillary grading system was assessed using weighted kappa scoring among 4 graders reviewing a single renal papilla from 50 separate patients on two occasions. Grading was then applied to a cohort of patients undergoing endoscopic stone removal procedures at 2 centers...
November 8, 2016: Journal of Endourology
https://www.readbyqxmd.com/read/27824261/extracorporeal-shockwave-lithotripsy-versus-flexible-ureteroscopy-for-the-management-of-upper-tract-urinary-stones-in-children
#7
Lucas Freton, Benoit Peyronnet, Alexis Arnaud, Lauranne Tondut, Juliette Hascoët, Benjamin Pradere, Gregory Verhoest, Edouard Habonimana, Olivier Azzis, Benjamin Fremond, Karim Bensalah
OBJECTIVE: To compare the efficacy and morbidity of extracorporeal shockwave lithotripsy (ESWL) and flexible ureteroscopy (F-URS) for the management of upper urinary tract stones in children. METHODS: All ESWL and F-URS performed in children in a single-institution between 2000 and 2014 were reviewed retrospectively. Only procedures performed to treat upper tract urinary stones (upper ureter or kidney) were included in this study. Preoperative and perioperative outcomes were compared between the ESWL and F-URS groups...
November 8, 2016: Journal of Endourology
https://www.readbyqxmd.com/read/27762629/enhanced-high-rate-shockwave-lithotripsy-stone-comminution-in-an-in-vivo-porcine-model-using-acoustic-bubble-coalescence
#8
Hedieh Alavi Tamaddoni, William W Roberts, Alexander P Duryea, Charles A Cain, Timothy L Hall
Cavitation plays a significant role in the efficacy of stone comminution during shockwave lithotripsy (SWL). Although cavitation on the surface of urinary stones helps to improve fragmentation, cavitation bubbles along the propagation path may shield or block subsequent shockwaves (SWs) and potentially induce collateral tissue damage. Previous in vitro work has shown that applying low-amplitude acoustic waves after each SW can force bubbles to consolidate and enhance SWL efficacy. In this study, the feasibility of applying acoustic bubble coalescence (ABC) in vivo was tested...
December 2016: Journal of Endourology
https://www.readbyqxmd.com/read/27762628/a-prospective-randomized-study-comparing-the-effect-of-different-kidney-protection-treatment-protocols-on-acute-renal-injury-after-extracorporeal-shockwave-lithotripsy
#9
Chi-Fai Ng, Sylvia Luke, Chi-Hang Yee, Winnie Chu, Ka-Tak Wong, John Yuen
Objectives To perform a prospective study to evaluate the renal protective effects of ramping protocol and pause protocol for extracorporeal shockwave lithotripsy in human subjects. Patients and Methods 320 patients with solitary renal stone <15mm, were randomized to receive one of four protocols: (1) 80% power from beginning until the end of treatment; (2) the first 100 SWs at 40% power, and then 80% power until the end of treatment; (3) the first 100 shocks at 40% power, followed by a 3-minute pause and then further SWs at 80% power until the end of treatment; and (4) the first 100 shocks at 80% power, followed by a 3-minute pause and then further SWs at 80% power until the end of treatment...
October 20, 2016: Journal of Endourology
https://www.readbyqxmd.com/read/27759736/the-future-of-ureteroscopy
#10
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:YAG laser can be utilized through flexible instruments and fragments any stone no matter what it is composed of...
October 19, 2016: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/27733751/outcomes-of-ureteroscopy
#11
Sarah Mozafarpour, Natalia Hernandez, Michael Lipkin, Brian Eisner
Over the past 2 decades, ureteroscopy has changed from a procedure considered second-line to shockwave lithotripsy to a commonly performed procedure for renal and ureteral stones. The increase in the use of ureteroscopy is due largely to improvements in technique and technology during this time period. Herein we review outcomes of ureteroscopy in terms of success rates, complications, and unique patient populations. This work will synthesize the data as it pertains to the practice of ureteroscopy for all endourological indications, including stone disease and management of upper tract urothelial carcinoma, as well as review state-of-the-art techniques...
October 12, 2016: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/27677937/novel-treatment-options-for-bouveret-s-syndrome-a-comprehensive-review-of-61-cases-of-successful-endoscopic-treatment
#12
Jean-Marc Dumonceau, Jacques Devière
In Bouveret's syndrome, a biliary stone obstructs the duodenum. Surgical treatment is plagued by high morbidity and mortality. Therefore, endoscopic treatment has become a first-line approach. Areas covered: A literature search of Medline and Google Scholar databases was performed using the terms endoscopic treatment, non-operative treatment, Bouveret's syndrome, and gallstone ileus. Sixty-one cases of successful endoscopic treatment were found over the period 1978-2016 and are summarized herein. Therapeutic modalities used in 52 patients with complete success included mechanical lithotripsy (40% of cases), electrohydraulic lithotripsy (21% of cases), extraction of the intact stone and laser lithotripsy (15% of cases each), extracorporeal shockwave lithotripsy and duodenal stenting (4% of cases each)...
October 5, 2016: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/27676117/miniperc-versus-shockwave-lithotripsy-for-average-sized-radiopaque-lower-pole-calculi-a-prospective-randomized-study
#13
Tarek Soliman, Hammouda Sherif, Ahmed Sebaey Ahmed, Ahmed Mohey, Bashir Almohamdy
INTRODUCTION: To detect safety and feasibility of miniperc and SWL for treatment of average sized (1-2 cm) radiopaque lower pole calculi in a prospective randomized manner. MATERIAL AND METHODS: In the period from January 2014 to June 2015, 150 patients were attached to this study with single lower pole radiopaque stone ranging from 10- 20mm. Patients were divided randomly into two groups using computer generated randomization in an equal manner. First group patients were subjected to miniperc procedure while second group patients underwent SWL...
September 27, 2016: Journal of Endourology
https://www.readbyqxmd.com/read/27670851/comparison-of-shockwave-frequencies-of-30-and-60-shocks-per-minute-for-kidney-stones-a-prospective-randomized-study
#14
Muammer Altok, Mustafa Güneş, Mehmet Umul, Ali Feyzullah Şahin, Ercan Baş, Taylan Oksay, Sedat Soyupek
OBJECTIVE: One of the factors that determines the treatment success of shockwave lithotripsy (SWL) is the frequency of the shockwaves during the procedure. This study compared the efficacy and pain perception of shockwave frequencies at 30 versus 60 shocks/min for kidney stones. MATERIALS AND METHODS: From August 2013 to May 2015, 160 patients with solitary, radiopaque kidney stones were randomized to SWL at 30 shocks/min (group 1) or 60 shocks/min (group 2), with 80 patients in each group...
September 27, 2016: Scandinavian Journal of Urology
https://www.readbyqxmd.com/read/27635934/ureteroscopy-accessory-devices
#15
Courtney Yong, Bodo E Knudsen
The incidence of stone disease continues to rise. Surgical management options including shockwave laser lithotripsy, percutaneous nephrolithotomy, and ureteroscopy with stone extraction and/or lithotripsy. The technology associated with the ureteroscopic treatment of stones has advanced significantly over the past decade and this review focuses on many of the accessory devices that can be employed to aid in the procedure.
September 16, 2016: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/27633576/flexible-ureteroscopic-lithotripsy-for-the-treatment-of-upper-urinary-tract-calculi-in-infants
#16
Jun Li, Jing Xiao, Tiandong Han, Ye Tian, Wenying Wang, Yuan Du
We evaluated the clinical value of flexible ureteroscopic lithotripsy for the treatment of upper urinary tract calculi in infants. Fifty-five infants with upper urinary tract calculi were included in this study: 41 males and 14 females. Retrograde intrarenal surgery was performed by an 8 Fr/30 cm flexible ureterorenoscope (POLY®) combined with a holmium laser. CT scanning or radiography of the kidneys, ureters, and bladder region was performed one month after the operation to confirm the clearance of calculi...
September 15, 2016: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27629239/urolithiasis-treatment-in-australia-the-age-of-ureteroscopic-intervention
#17
Marlon Perera, Nathan P Papa, Ned Kinnear, David Wetherell, Nathan Lawrentschuk, David R Webb, Damien M Bolton
INTRODUCTION: The incidence of urolithiasis is increasing in the Western population. Significant advances in ureteroscopy and stone fragmentation energy sources has resulted in a paradigm shift in urolithiasis management. We aimed to assess the current state of urolithiasis management in Australia over the last 15 years using population-based data. METHODS: Medicare Australia databases were accessed and Medicare rebate codes pertaining to ureteroscopy, extra-corporeal shockwave lithotripsy (ESWL) and percutaneous nephrolithotomy (PCNL) were extracted per state, year and gender between 2001 and 2015...
September 14, 2016: Journal of Endourology
https://www.readbyqxmd.com/read/27610642/advances-of-recurrent-risk-factors-and-management-of-choledocholithiasis
#18
Jian-Shan Cai, Sun Qiang, Yin Bao-Bing
Gallstone disease is a common and frequently occurring disease in human, and it is the main disease among the digestive system diseases. The incidence of gallstone disease in western countries is about 5%-22%, and common bile duct stones (CBDS) accounts for 8%-20%. CBDS easily lead to biliary obstruction, secondary cholangitis, pancreatitis, and obstructive jaundice, even endanger life. Therefore, it needs timely treatment once diagnosed. The recurrence of choledocholithiasis after bile duct stones clearance involves complicated factors and cannot be completely elaborated by a single factor...
September 9, 2016: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/27551556/impact-of-ureteric-stent-on-outcome-of-extracorporeal-shockwave-lithotripsy-a-propensity-score-analysis
#19
Krystian Kaczmarek, Adam Gołąb, Marcin Słojewski
INTRODUCTION: Extracorporeal shockwave lithotripsy (SWL) is one of the most frequently performed procedures in patients with urolithiasis. For ureter-localized stones, SWL is often preceded by a double J stent insertion. However, fear of serious complications, including sepsis associated with stents, is often expressed. The following study assessed the impact of stent insertions on the results of SWL in patients with ureteric stones. MATERIAL AND METHODS: The study group consisted of 411 ureteric stone patients who were treated with SWL from January 2010 to December 2014...
2016: Central European Journal of Urology
https://www.readbyqxmd.com/read/27547462/extracorporeal-shockwave-lithotripsy-monotherapy-for-treating-patients-with-bladder-stones
#20
Khaled A Telha, Khaled Alkohlany, Ibrahim Alnono
OBJECTIVES: To describe our experience with extracorporeal shockwave lithotripsy (ESWL) for the treatment of bladder stones of <20 mm. PATIENTS AND METHODS: This study was prospectively performed in two hospitals (Althawrah Modern General Hospital, and Ibn Sina Specialized Hospital) between November 2012 and November 2015. In all, 44 patients presented with urethral or bladder stones. The location and size of the stones was assessed by abdominal ultrasonography and plain abdominal radiography of the kidneys, ureters and bladder...
September 2016: Arab Journal of Urology
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