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Shockwave lithotripsy

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https://www.readbyqxmd.com/read/28201840/clinical-response-to-dorsal-duct-drainage-via-the-minor-papilla-in-refractory-obstructing-chronic-calcific-pancreatitis
#1
Chang-Il Kwon, Mark A Gromski, Stuart Sherman, Ihab I El Hajj, Jeffrey J Easler, James Watkins, Lee McHenry, Glen A Lehman, Evan L Fogel
Background and study aims Complete stone removal from the main pancreatic duct might not be achieved in all patients with obstructive chronic calcific pancreatitis. We report our results for endoscopic dorsal pancreatic duct (DPD) bypass of obstructing stones in the ventral pancreatic duct (VPD). Patients and methods 16 patients with obstructive chronic calcific pancreatitis were treated with a DPD bypass. Clinical success was defined as significant pain relief and no hospital admissions for pain management during the ongoing treatment period...
February 15, 2017: Endoscopy
https://www.readbyqxmd.com/read/28138366/uncommon-presentation-of-a-common-disease-bouveret-s-syndrome-a-case-report-and-systematic-literature-review
#2
Yahya Al-Habbal, Matthew Ng, David Bird, Trevor McQuillan, Haytham Al-Khaffaf
AIM: To investigate and summarise the current evidence surrounding management of Bouveret's syndrome (BS). METHODS: A MEDLINE search was performed for the BS. The search was conducted independently by two clinicians (Yahya AL-Habbal and Matthew Ng) in April 2016. A case of BS is also described. RESULTS: A total of 315 articles, published from 1967 to 2016, were found. For a clinically meaningful clinical review, articles published before 01/01/1990 and were excluded, leaving 235 unique articles to review...
January 27, 2017: World Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28116737/efficacy-of-silodosin-dose-in-medical-expulsive-therapy-for-distal-ureteral-stones-a-retrospective-study
#3
Cem Nedim Yuceturk, Mumtaz Dadali, Muhammed Sahin Bagbanci, Berat Cem Ozgur, Yasin Aydogmus, Yildiray Yildiz, Muhammet Fatih Kilinc
PURPOSE: We aimed to investigate the efficacy of silodosin 4 mg/day and 8 mg/day for medical expulsive therapy(MET) of lower ureteral stones. MATERIALS AND METHODS: We retrospectively analyzed the medical records of 161 patients admitted to urologyclinics of Ahi Evran University Medical Faculty and Ankara Training and Research Hospital with distal ureteralstones and treated with MET with different doses of silodosin between January 2013 and August 2015. 81 patientswere treated with silodosin 4mg/day in group-1 and 80 patients with silodosin 8mg/day in group-2...
January 18, 2017: Urology Journal
https://www.readbyqxmd.com/read/28097265/the-efficacy-of-performing-shockwave-lithotripsy-before-retrograde-intrarenal-surgery-in-the-treatment-of-multiple-or-large-%C3%A2-1-5-cm-nephrolithiasis-a-propensity-score-matched-analysis
#4
Myungsun Shim, Myungchan Park, Hyung Keun Park
PURPOSE: To investigate the effect of performing shockwave lithotripsy (SWL) before retrograde intrarenal surgery (RIRS) on the treatment outcomes of patients with nephrolithiasis. MATERIALS AND METHODS: The data of 189 patients with renal stones who underwent RIRS from July 2007 to July 2014 was reviewed retrospectively. Patients with stones larger than 1.5 cm were recommended to undergo SWL before RIRS. Patients were divided into 2 groups based on whether the preoperative SWL was performed (group 1, n=68) or not (group 2, n=121)...
January 2017: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/28073210/the-importance-of-citrates-in-treatment-and-prophylaxis-of-calcium-oxalate-urinary-stones
#5
Michele Barbera, Andreas Tsirgiotis, Mauro Barbera, Quintino Paola
About 10% of the people is the subject of an episode of kidney stones during their lifetime, about 70% of these people undergoes relapses. About 80% of the urinary stones contains calcium, of wich 80% is formed of calcium oxalate, in pure form or associated with calcium phosphate. Therefore we can saythat in most cases (about 65%) the urinary stones are composedof calcium oxalate. Use of supplements of potassium citrate and magnesium citrate can help in the prevention of kidney stones of calcium oxalate, but mostly they can be used in the days before a shockwaves lithotripsy treatment to make the stones more fragile to the effect of the shock waves...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28057991/extracorporeal-shockwave-lithotripsy-without-radiation-ultrasound-localization-is-as-effective-as-fluoroscopy
#6
Hazel Elizabeth Smith, David Alistair Bryant, Jenny KooNg, Richard Alexander Chapman, Gareth Lewis
CONTEXT: Extracorporeal shockwave lithotripsy (SWL) is the first-line treatment for renal calculi in most cases. Recent technology has allowed lithotriptor machines to localize stones using fluoroscopy or ultrasound (US). AIM: The aim of this study is to compare stone free rates (SFR) using two techniques. METHODS: This is a single center retrospective cohort study. We have studied 95 patients with renal calculi undergoing first SWL treatment with localization using US (48 pts) and fluoroscopy (47 pts)...
October 2016: Urology Annals
https://www.readbyqxmd.com/read/28052698/variation-coefficient-of-stone-density-a-novel-predictor-of-the-outcome-of-extracorporeal-shockwave-lithotripsy
#7
Shimpei Yamashita, Yasuo Kohjimoto, Takashi Iguchi, Satoshi Nishizawa, Akinori Iba, Kazuro Kikkawa, Isao Hara
OBJECTIVES: Although previous studies have indicated that stone heterogeneity can affect shock wave lithotripsy outcomes, there is no established measurement of stone heterogeneity on computed tomography imagery. We investigated whether variation coefficient of stone density can predict shock wave success. MATERIALS AND METHODS: We conducted a retrospective review of 245 patients with urinary calculi who had undergone shock wave lithotripsy. We compared the predictive powers of treatment success between variation coefficient of stone density and other parameters associated with computed tomography attenuation...
January 4, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28012707/effectiveness-of-ureteroscopy-among-the-youngest-patients-one-centre-s-experience-in-an-endemic-region-in-turkey
#8
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
#9
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/27924085/gastric-submucosal-hematoma-an-unusual-complication-of-extracorporeal-shockwave-lithotripsy
#10
Hemanta K Nayak, V P Krishna, Samir Mohindra, Vivek Anand Saraswat, Namita Mohindra, Gaurav Pande
No abstract text is available yet for this article.
December 2016: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/27911457/what-is-the-impact-of-extracorporeal-shock-wave-lithotripsy-on-semen-parameters-a-systematic-review-and-meta-analysis
#11
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
#12
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
#13
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
#14
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
#15
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
#16
Andrew J Cohen, Michael S Borofsky, Blake B Anderson, Casey A Dauw, Daniel L Gillen, Glenn S Gerber, Elaine M Worcester, Fredric L Coe, James E Lingeman
OBJECTIVE: This study was conducted 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 interobserver 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 2 occasions. Grading was then applied to a cohort of patients undergoing endoscopic stone removal procedures at two centers...
January 2017: 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
#17
Lucas Freton, Benoit Peyronnet, Alexis Arnaud, Lauranne Tondut, Juliette Hascoet, Benjamin Pradère, Grégory Verhoest, Édouard Habonimana, Olivier Azzis, Benjamin Fremond, Karim Bensalah
OBJECTIVE: To compare the efficacy and morbidity of extracorporeal shockwave lithotripsy (SWL) and flexible ureteroscopy (F-URS) for the management of upper tract urinary stones in children. METHODS: All SWL 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 SWL and F-URS groups...
January 2017: 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
#18
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
#19
Chi-Fai Ng, Sylvia Luke, Chi-Hang Yee, Winnie C W Chu, Ka-Tak Wong, John W M Yuen
OBJECTIVES: To perform a prospective study to evaluate the renal protective effects of ramping protocol and pause protocol for extracorporeal shockwave lithotripsy (SWL) in human subjects. PATIENTS AND METHODS: Three hundred twenty patients with solitary renal stone <15 mm were randomized to receive one of four protocols: (1) 80% power from beginning until the end of treatment; (2) the first 100 shockwaves (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...
January 2017: Journal of Endourology
https://www.readbyqxmd.com/read/27759736/the-future-of-ureteroscopy
#20
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
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