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https://www.readbyqxmd.com/read/29244269/current-trends-of-percutaneous-nephrolithotomy-in-a-developing-country
#1
Carlos A Batagello, Fabio Carvalho Vicentini, Giovanni Scala Marchini, Fabio Cesar Miranda Torricelli, Miguel Srougi, Willian Carlos Nahas, Eduardo Mazzucchi
INTRODUCTION: To present the current practice patterns on percutaneous nephrolithotomy (PCNL) in a developing country. MATERIALS AND METHODS: A survey was offered to Brazilian urologists during the II International Endourology Symposium held in Sao Paulo, in 2015. The first seven questions were related to demographic data while the 20 remaining were directed to urologists who performed PCNL. RESULTS: From 250 participants, 100 replied to the survey, 81% performed PCNL and 60...
December 18, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/29195830/retrograde-intrarenal-surgery-using-ureteral-access-sheaths-is-a-safe-and-effective-treatment-for-renal-stones-in-children-weighing-20%C3%A2-kg
#2
Alfredo Berrettini, Luca Boeri, Emanuele Montanari, Mirella Mogiatti, Pietro Acquati, Elisa De Lorenzis, Andrea Gallioli, Erika Adalgisa De Marco, Dario Guido Minoli, Gianantonio Manzoni
INTRODUCTION: Surgical treatment of pediatric kidney stones has changed dramatically in recent years because of the miniaturization of surgical instruments and the availability of intracorporeal lithotripters. The retrograde intrarenal surgery (RIRS) technique is nowadays considered an effective and safe procedure but studies in very young children are lacking and use of a ureteral access sheath (UAS) has also been debated. OBJECTIVE: To assess safety and efficacy of RIRS using UAS in children weighing < 20 kg...
November 11, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29195423/evaluation-of-an-experimental-electrohydraulic-discharge-device-for-extracorporeal-shock-wave-lithotripsy-pressure-field-of-sparker-array
#3
Guangyan Li, Bret A Connors, Ray B Schaefer, John J Gallagher, Andrew P Evan
In this paper, an extracorporeal shock wave source composed of small ellipsoidal sparker units is described. The sparker units were arranged in an array designed to produce a coherent shock wave of sufficient strength to fracture kidney stones. The objective of this paper was to measure the acoustical output of this array of 18 individual sparker units and compare this array to commercial lithotripters. Representative waveforms acquired with a fiber-optic probe hydrophone at the geometric focus of the sparker array indicated that the sparker array produces a shock wave (P+ ∼40-47 MPa, P- ∼2...
November 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/29188308/ureteroscopy-from-the-recent-past-to-the-near-future
#4
REVIEW
José Manuel Reis Santos
Stone surgery is one of oldest surgical practices undertaken by man. Hippocrates refused to let his followers "cut for the stone" and it was only in February 1980, when the first human trial of shock wave therapy on a renal stone was performed with success that a new era in minimally invasive treatment (surgery) for stones was opened up and this condemnation was finally resolved in the Hippocratic Oath. Endoscopy, using natural orifices, supported by anaesthesia, incremented by technology and with access to all points along the urinary tract, began by competing with ESWL, but is now the treatment of choice in most cases...
November 29, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29177561/how-can-and-should-we-optimize-extracorporeal-shockwave-lithotripsy
#5
REVIEW
Christian G Chaussy, Hans-Göran Tiselius
It is well recognized that the popularity of extracorporeal shock wave lithotripsy (SWL), despite its non-invasive character, has decreased during recent years. This is partly explained by the technological achievements in endoscopy and urologists' enthusiasm for such procedures. Another explanation is that many urologists have been insufficiently successful with SWL. The latter effect might to some extent be a result of the performance of the lithotripter used, but in too many cases, it is evident that the principles of how shock wave lithotripsy should be carried out are poorly applied...
November 25, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29164303/percutaneous-nephrolithotomy-position-position-position
#6
REVIEW
Zhijian Zhao, Junhong Fan, Yang Liu, Jean de la Rosette, Guohua Zeng
Percutaneous nephrolithotomy (PCNL) is the regular surgery for treating large or complex renal stones. Since its first inception, many variations have come in the approach including the modifications of patient position. The prone position is traditionally used, and subsequently, variations in prone and supine technique have been proposed and assessed over time. In an attempt to provide comprehensive information about the strategy applications of patient's position, the present review describes the position-related general basis, and provides a literature review of the pros and cons of various positions from a surgical and anaesthetic point of view...
November 21, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29136679/current-trends-and-pitfalls-in-endoscopic-treatment-of-urolithiasis
#7
REVIEW
Takaaki Inoue, Shinsuke Okada, Shuzo Hamamoto, Takashi Yoshida, Tadashi Matsuda
Current development of endoscopic technology, lithotripters, and stone-retrieval devices has expanded the indications for retrograde and antegrade endoscopic therapy in the management of urolithiasis. This technology has also resulted in minimally invasive therapy. As surgeons' experience of endourological procedures with the newer instruments has become integrated, the surgical technique and indications for urolithiasis have also changed in the past few years. The present review provides an overview of endourological procedures for upper urinary tract stones and the key points related to surgical techniques...
November 14, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/29135147/-biomarkers-of-renal-injury-in-contact-ureteral-lithotripsy
#8
A I Tarasenko, A M Pushkarev, I G Rakipov, A V Alekseev, Ya V Kondratenko, V N Pavlov
AIM: To optimize the transurethral endoscopic management of patients with ureterolithiasis by measuring biomarkers of renal parenchymal damage. MATERIALS AND METHODS: One hundred fifty-one patients with solitary ureteral stones were tested for levels of cystatin C, neutrophil gelatinase-associated lipocalin, 2-microglobulin and interleukin 18. RESULTS: An increase in the levels of markers of renal injury was observed both in the preoperative period and after CULT...
October 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/29131810/the-role-of-trapped-bubbles-in-kidney-stone-detection-with-the-color-doppler-ultrasound-twinkling-artifact
#9
Julianna C Simon, Oleg A Sapozhnikov, Wayne Kreider, Michael Breshock, James C Williams, Michael R Bailey
The color Doppler ultrasound twinkling artifact, which highlights kidney stones with rapidly changing color, has the potential to improve stone detection; however, its inconsistent appearance has limited its clinical utility. Recently, it was proposed stable crevice bubbles on the kidney stone surface cause twinkling; however, the hypothesis is not fully accepted because the bubbles have not been directly observed. In this paper, the micron or submicron-sized bubbles predicted by the crevice bubble hypothesis are enlarged in kidney stones of five primary compositions by exposure to acoustic rarefaction pulses or hypobaric static pressures in order to simultaneously capture their appearance by high-speed photography and ultrasound imaging...
November 13, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29129709/sialolithiasis-removal-under-general-anesthesia-a-descriptive-retrospective-study-in-the-maxillofacial-surgery-department-in-lille-university-hospital
#10
R Ruiz, A Brygo, R Nicot, J Ferri
INTRODUCTION: Since the beginning of the use of sialendoscopy and extracorporeal lithotripsy, recommendations have changed. The purpose of this retrospective study was to evaluate the efficiency of our treatment protocol, without a lithotripter, under general anaesthesia in the Stomatology and Maxillofacial Surgery Department of Lille University Hospital. The secondary goals were to evaluate patient tolerance and satisfaction. MATERIALS AND METHODS: All patients treated with sialendoscopy alone, sialendoscopy with a combined surgical approach or a transoral approach (TOA) (sialolithotomy) between January 2013 and December 2015 were included...
November 10, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29119841/a-state-of-art-review-of-low-intensity-extracorporeal-shock-wave-therapy-and-lithotripter-machines-for-the-treatment-of-erectile-dysfunction
#11
Eric Chung, Juan Wang
Introduction Current treatment for erectile dysfunction (ED) mostly attempts to improve erectile function with limited impact on altering the underlying pathophysiology of ED. Recent animal experiments have supported the notion that low intensity extracorporeal shockwave therapy (LIESWT) significantly improves penile hemodynamics and might induce structural changes that regenerate penile tissue. Areas covered This review article provides an overview of the basic mechanics and clinical studies pertaining to LIESWT and its use in the field of ED...
November 9, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/29048208/an-innovative-technique-of-transurethral-seminal-vesiculoscopy-with-ultrasonic-lithotripter-for-severe-persistent-hematospermia
#12
Wei Zhang, Guang'an Xiao, Shenfei Qin, Amanda B Reed-Maldonado, Jian Xu, Guanghua Chen, Lei Wang, Tie Zhou
BACKGROUND AND PURPOSE: Transurethral seminal vesiculoscopy (TSV) provides an efficient approach to diagnose and treat the hematospermia but still need further improvement in manipulation and corresponding instruments. In this study, we develop an innovative technique with ultrasonic lithotripter (EMS) to treat severe, persistent hematospermia. PATIENTS AND METHODS: Data of patients who underwent TSV with or without ultrasonic lithotripter between May 2012 and December 2015 was reviewed...
October 19, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/29048206/analysis-of-the-efficacy-and-safety-of-increasing-the-energy-dose-applied-per-session-by-increasing-the-number-of-shock-waves-in-extracorporeal-lithotripsy-a-prospective-and-comparative-study
#13
José Daniel López-Acón, Alberto Budía Alba, Pilar Bahílo-Mateu, Marta Trassierra-Villa, María de Los Ángeles Conca-Baenas, Domingo de Guzmán Ordaz-Jurado, Francisco Tormo Boronat
PURPOSE: To evaluate the efficacy and safety of increasing the energy dose in treating urinary lithiasis with extracorporeal lithotripsy through an expanded number of Shock Waves Per Session (SWPS). MATERIALS AND METHODS: a randomized, prospective, and comparative study was performed with patients with renal or ureteral lithiasis from 2011 to 2014. Two groups were studied: Group A (n = 136), treated with 3500 SWPS, and Group B (n = 171), subjected to an expanded treatment with 7000 SWPS...
November 15, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28981413/characterizing-the-acoustic-output-of-an-ultrasonic-propulsion-device-for-urinary-stones
#14
Bryan W Cunitz, Barbrina Dunmire, Michael R Bailey
A non-invasive ultrasound system to facilitate the passage of small kidney stones has been developed. The device incorporates a software based ultrasound platform programmed with B-mode and Doppler for visualizing stones, plus long duration focused pulses for repositioning stones using the same transducer. This paper characterizes the acoustic outputs of the ultrasonic propulsion device. Though the application and outputs are unique, measurements were performed based on regulatory standards for both diagnostic ultrasound and extracorporeal lithotripters...
October 2, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28870760/endoscopic-management-of-erosion-after-banded-bariatric-procedures
#15
Matthew D Spann, Chetan V Aher, Wayne J English, D Brandon Williams
BACKGROUND: Prosthetic materials wrapped around a portion of the stomach have been used to provide gastric restriction in bariatric surgery for many years. Intraluminal erosion of adjustable and nonadjustable gastric bands typically occurs many years after placement and results in various symptoms. Endoscopic management of gastric band erosion has been described and allows for optimal patient outcomes. OBJECTIVES: We will describe our methods and experience with endoscopic management of intraluminal gastric band erosions after bariatric procedures...
July 24, 2017: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
https://www.readbyqxmd.com/read/28859485/randomized-controlled-trial-comparing-three-different-modalities-of-lithotrites-for-intracorporeal-lithotripsy-in-percutaneous-nephrolithotomy
#16
Nadya E York, Michael S Borofsky, Ben H Chew, Casey A Dauw, Ryan F Paterson, John D Denstedt, Hassan Razvi, Robert B Nadler, Mitchell R Humphreys, Glenn M Preminger, Stephen Y Nakada, Amy E Krambeck, Nicole L Miller, Colin Terry, Lori D Rawlings, James E Lingeman
PURPOSE: To compare the efficiency (stone fragmentation and removal time) and complications of three models of intracorporeal lithotripters in percutaneous nephrolithotomy (PCNL). MATERIALS AND METHODS: Prospective, randomized controlled trial at nine centers in North America from 2009 to 2016. Patients were randomized to one of three lithotripter devices: the Cyberwand, a dual-probe ultrasonic device; the Swiss Lithoclast Select, a combination pneumatic and ultrasonic device; and the StoneBreaker, a portable pneumatic device powered by CO2 cartridges...
November 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28830243/device-related-adverse-events-during-percutaneous-nephrolithotomy-review-of-the-manufacturer-and-user-facility-device-experience-database
#17
Neel H Patel, Ariel A Schulman, Jonathan B Bloom, Nikil Uppaluri, John L Phillips, Sensuke Konno, Muhammad Choudhury, Majid Eshghi
INTRODUCTION AND OBJECTIVES: Percutaneous nephrolithotomy (PCNL) is an established technique for removal of large stones from the upper urinary tract. It is a complex multistep procedure requiring several classes of instruments that are subject to operator misuse and device malfunction. We report device-related adverse events during PCNL from the Manufacturer and User Facility Device Experience (MAUDE) database using a recently developed standardized classification system. MATERIALS AND METHODS: The MAUDE database was queried for "percutaneous nephrolithotomy" from 2006 to 2016...
October 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28827902/the-efficacy-of-percutaneous-nephrolithotomy-using-pneumatic-lithotripsy-vs-the-holmium-laser-a-randomized-study
#18
Chaoying Liu, Houyong Zhou, Weisheng Jia, Hua Hu, Heng Zhang, Longkun Li
The objective of the study is to compare the efficacy of percutaneous nephrolithotomy using holmium laser vs pneumatic lithotripsy. From August 2010 to March 2014, 200 patients with double kidney and single kidney stones without previous operations or other diseases were randomized into two groups according to the type of lithotripter used: pneumatic (n = 100) and laser (n = 100). The preoperative, intraoperative, and post-operative follow-up findings were analyzed and compared. The average stone size was similar in both the pneumatic and holmium laser lithotripsy groups (202...
August 2017: Indian Journal of Surgery
https://www.readbyqxmd.com/read/28766005/-what-is-the-current-status-of-shock-wave-lithotripsy
#19
REVIEW
A Neisius
BACKGROUND: Shock wave lithotripsy (SWL) became the therapy of choice for the majority of patients with urolithiasis early after its introduction in the early 1980s. Since then, SWL remains the only noninvasive therapy modality for the treatment of urinary stones. Although lithotripters became more versatile and affordable-making them available worldwide-indications for SWL have shifted as well. In most western countries, endoscopic techniques took the lead in stone therapy due to high (early) stone-free and better reimbursement rates...
August 1, 2017: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/28756458/comparison-of-intermediate-and-low-frequency-shock-wave-lithotripsy-for-pediatric-kidney-stones
#20
Onur Kaygısız, Hakan Kılıçarslan, Ahmet Mert, Burhan Coşkun, Yakup Kordan
The aim of the study to compare low and intermediate shock wave frequency rates in terms of success and complications for treating pediatric kidney stones. This retrospective study was performed on 58 consecutive pediatric patients (24 girls, 34 boys) who underwent shock wave lithotripsy (SWL) for kidney stones with an electrohydraulic lithotripter between April 2014 and March 2016. In the first year, all children underwent SWL with a frequency of 90 SWs/min as an intermediate frequency (Group 90), and in the second year all children were treated by SWL using 60 SWs/min as a low frequency (Group 60)...
July 29, 2017: Urolithiasis
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