Read by QxMD icon Read

Shockwave lithotripsy

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, and potentially induce collateral tissue damage. Previous in vitro work has shown that applying low amplitude acoustic waves after each shockwave can force bubbles to consolidate and enhance SWL efficacy. In this study, the feasibility of applying acoustic bubble coalescence (ABC) in vivo was tested...
October 20, 2016: Journal of Endourology
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
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
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
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
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
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
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
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
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
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
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
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
Chintan K Patel, Nelson Bennett
Erectile dysfunction adversely affects up to 20% of all men and is the most commonly treated sexual disorder. The public health implications of this condition are significant and represent a challenge for our healthcare system. The physiological pathways responsible for erections have been extensively studied, and much advancement has been made since the introduction of phosphodiesterase 5 inhibitors. Newer agents, such as dopaminergic and melanocortin receptor agonists, which target central erectogenic pathways, are under investigation...
2016: F1000Research
Hamdy Aboutaleb
OBJECTIVE: To evaluate the feasibility of access sheath insertion and ureteric stent placement without image guidance in flexible ureteroscopic lithotripsy with holmium:yttrium-aluminium-garnet laser for renal stones. PATIENTS AND METHODS: Between March 2014 and October 2015, 80 patients with renal stones treated with flexible ureteroscopic laser lithotripsy were evaluated. Indications for surgery were renal obstruction, failed shockwave lithotripsy (SWL), stones in polycystic kidneys, and mal-rotated kidneys...
June 2016: Arab Journal of Urology
Ahmed El-Assmy, Ahmed M Harraz, Yasser Eldemerdash, Mohammed Elkhamesy, Ahmed R El-Nahas, Ahmed M Elshal, Khaled Z Sheir
OBJECTIVES: To investigate the effect of stone fragmentation on late stone recurrence by comparing the outcome of extracorporeal shockwave lithotripsy (ESWL) and non-fragmenting percutaneous nephrolithotomy (PCNL), and to investigate factors contributing to recurrent calculi. PATIENTS AND METHODS: We evaluated stone recurrence in 647 patients who initially achieved a stone-free status after ESWL and compared the outcomes to 137 stone-free patients treated with PCNL without stone fragmentation...
June 2016: Arab Journal of Urology
Seung Kyu Lee, Tae Beom Kim, Kwang-Pil Ko, Chang Hee Kim, Kwang Taek Kim, Kyung Jin Chung, Khae Hawn Kim, Han Jung, Sang Jin Yoon, Jin Kyu Oh
PURPOSE: For treating proximal ureteral calculi, treatment decision has been known still difficult to choose ureteroscopic lithotripsy (URS) or shockwave lithotripsy. The aims of our study are to identify the possible predictors for necessity of URS and to propose the Gachon University Ureteral Narrowing scoring system (GUUN score) as a helpful predictor. MATERIALS AND METHODS: We evaluated 83 consecutive patients who underwent semirigid URS due to proximal ureteral calculi between April 2011 and February 2014 by a single surgeon...
July 2016: Investigative and Clinical Urology
Nathan Y Hoy, Larissa Shapka, Jan Rudzinski, Trevor D Schuler, Timothy A Wollin, Derek Bochinski, Shubha K De
INTRODUCTION AND OBJECTIVE: The manufacturer for the Storz Modulith SLX-F2 lithotripter recommends treatment head exchange after 1.65 million shocks. However, there is no documentation describing longevity of the treatment head with continued usage. The objective of this study is to determine whether there is a difference in stone fragmentation effectiveness with the treatment head at the beginning versus the end of its treatment life. METHODS: We conducted a retrospective chart review of 200 patients-50 consecutive patients treated immediately preceding, and following, two separate treatment head exchanges...
September 2016: Journal of Endourology
M C D Agostino, R Frairia, P Romeo, E Amelio, L Berta, V Bosco, S Gigliotti, C Guerra, S Messina, L Messuri, B Moretti, A Notarnicola, G Maccagnano, S Russo, R Saggini, M C Vulpiani, P Buselli
Extracorporeal Shock Wave Therapy (ESWT), after its first medical application in the urological field for lithotripsy, nowadays represents a valid therapeutical tool also for many musculoskeletal diseases, as well as for regenerative medicine applications. This is possible thanks to its mechanisms of action, which in the non-urological field are not related to mechanical disruption (as for renal stones), but rather to the capacity, by mechanotransduction, to induce neoangiogenesis, osteogenesis and to improve local tissue trophism, regeneration and remodeling, through stem cell stimulation...
April 2016: Journal of Biological Regulators and Homeostatic Agents
Andrea G Lantz, Jeffrey McKay, Michael Ordon, Kenneth T Pace, Manoj Monga, R John D'A Honey
PURPOSE: Shockwave lithotripsy (SWL) is a widely utilized form of treatment for urolithiasis. There are new evidence-based recommendations regarding pre-SWL patient work-up and the performance of SWL. The purpose of this study is to determine practice patterns for SWL and to determine if regional variation exists between Canada and the United States. MATERIALS AND METHODS: A 19-question survey was prepared. Canadian urologists were surveyed through e-mail correspondence...
August 2016: Journal of Endourology
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"