Renal Protection Phenomenon Observed in a Porcine Model After Electromagnetic Lithotripsy Using a Treatment Pause.

Abstract:

PURPOSE:Pretreating the kidney with 100 low energy SWs with a time pause before delivering a clinical dose of SWs (Dornier HM-3, 2000 SWs, 24 kV, 120 SWs/min) has been shown to significantly reduce the size of the hemorrhagic lesion produced in that treated kidney, compared to a protocol without pretreatment. It has been assumed that a similar reduction in injury will occur with lithotripters other than the HM-3, but experiments to confirm this assumption are lacking. In this study we sought to verify that the lesion protection phenomenon also occurs in a lithotripter using an electromagnetic shock source and dry-head coupling. MATERIALS AND METHODS:Eleven female pigs were placed in a Dornier Compact S lithotripter where the left kidney of each animal was targeted for lithotripsy treatment. Some kidneys received 2500 SWs at PL=5 (120 SWs/min) while some kidneys were pretreated with 100 SWs at PL=1, with a 3-minute time pause, followed immediately by 2500 SWs at PL=5 (120 SWs/min). Lesion size analysis was performed to assess the volume of hemorrhagic tissue injury created by each treatment regimen (% FRV). RESULTS:Lesion size fell by 85% (P=0.01) in the 100 SW pretreatment group compared to the injury produced by a regimen without pretreatment. CONCLUSIONS:The results suggest that the treatment pause protection phenomenon occurs with a Dornier Compact S, a machine distinctly different from the Dornier HM-3. This result also suggests that this phenomenon may be observed generally in SW lithotripters.

journal_name

J Endourol

journal_title

Journal of endourology

authors

Connors BA,Gardner A,Liu Z,Lingeman JE,Williams JC Jr

doi

10.1089/end.2020.0681

subject

Has Abstract

pub_date

2021-01-20 00:00:00

eissn

0892-7790

issn

1557-900X

pub_type

杂志文章
  • Safety and Efficacy of Bipolar Transurethral Resection of the Prostate vs Monopolar Transurethral Resection of Prostate in the Treatment of Moderate-Large Volume Prostatic Hyperplasia: A Systematic Review and Meta-Analysis.

    abstract:: Aims: To compare outcomes of monopolar vs bipolar transurethral resection of the prostate (TURP) in the management of exclusively moderate-large volume prostatic hyperplasia in terms of maximum flow rate as a surrogate for clinical efficacy, duration of catheterization, ho...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.2020.0840

    authors: Bruce A,Krishan A,Sadiq S,Ehsanullah SA,Khashaba S

    更新日期:2020-12-28 00:00:00

  • Acute ureteral elongation in two animal models using a balloon expander.

    abstract:BACKGROUND AND OBJECTIVE:Repair of ureteral injuries and strictures often necessitates a major reconstructive procedure such as a psoas hitch, Boari flap, renal mobilization, ileal interposition, or autotransplantation. Tissue expanders have been used to elongate nerves and arteries. We examined the effects of acute ur...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.1999.13.245

    authors: Goldfischer ER,Stravodimos KG,Jabbour ME,Klima WJ,Anderson A,Smith AD

    更新日期:1999-05-01 00:00:00

  • Urology practice patterns after residency training in laparoscopy.

    abstract:PURPOSE:Laparoscopic training has been incorporated into many urology residency programs. Although the impact of laparoscopic training courses has been examined, the impact of residency training in laparoscopy on subsequent urology practice patterns has not been assessed. MATERIALS AND METHODS:Urologists completing th...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/089277902753752232

    authors: Shay BF,Thomas R,Monga M

    更新日期:2002-05-01 00:00:00

  • In-vitro activity of triclosan-eluting ureteral stents against common bacterial uropathogens.

    abstract:BACKGROUND AND PURPOSE:Ureteral stents are commonly used in urology today, but the biofilms that form on them within hours of placement may harbor bacteria that can result in infection or encrustation. Triclosan is an antimicrobial commonly used in consumer and medical products that inhibits bacterial fatty-acid synthe...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.2006.20.949

    authors: Chew BH,Cadieux PA,Reid G,Denstedt JD

    更新日期:2006-11-01 00:00:00

  • Laparoscopic partial nephrectomy versus laparoscopic ablative therapy: a comparison of surgical and functional outcomes in a matched control study.

    abstract:BACKGROUND AND PURPOSE:Patients who are undergoing laparoscopic ablative therapy (LAT) are often older with more comorbidities in comparison with patients who are undergoing laparoscopic partial nephrectomy (LPN). A matched control study was performed to compare the surgical and functional outcomes of LPN and LAT. PAT...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.2011.0087

    authors: Kiriluk KJ,Shikanov SA,Steinberg GD,Shalhav AL,Lifshitz DA

    更新日期:2011-12-01 00:00:00

  • Predicting Patients with Inadequate 24- or 48-Hour Urine Collections at Time of Metabolic Stone Evaluation.

    abstract:PURPOSE:We aimed to understand the characteristics of patients who are less likely to submit adequate urine collections at metabolic stone evaluation. METHODS:Inadequate urine collection was defined using two definitions: (1) Reference ranges for 24-hour creatinine/kilogram (Cr/24) and (2) discrepancy in total 24-hour...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.2014.0544

    authors: McGuire BB,Bhanji Y,Sharma V,Frainey BT,McClean M,Dong C,Rimar K,Perry KT,Nadler RB

    更新日期:2015-06-01 00:00:00

  • Why stones break better at slow shockwave rates than at fast rates: in vitro study with a research electrohydraulic lithotripter.

    abstract:BACKGROUND AND PURPOSE:Stones break better when the rate of shockwave (SW) delivery is slowed. It has been hypothesized that the greater cavitation accompanying a fast rate shields pulse propagation, thus interfering with the delivery of SW energy to the stone. We tested this idea by correlating waveforms measured at t...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.2006.20.537

    authors: Pishchalnikov YA,McAteer JA,Williams JC Jr,Pishchalnikova IV,Vonderhaar RJ

    更新日期:2006-08-01 00:00:00

  • Drainage characteristics of the 3F MicroStent using a novel film occlusion anchoring mechanism.

    abstract:PURPOSE:To determine whether the overall ureteral flow through an obstructed ureter using the 3F MicroStent™ that uses a novel film occlusion anchoring mechanism is comparable to the flow using a conventional 3F and 4.7F Double-J stent. MATERIALS AND METHODS:An in vitro silicone ureter model and an ex vivo porcine uri...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.2010.0722

    authors: Lange D,Hoag NA,Poh BK,Chew BH

    更新日期:2011-06-01 00:00:00

  • Chemolysis of artificial cystine stones (BON(N)-STONES) in vitro using a new dissolution device: first results.

    abstract:BACKGROUND AND PURPOSE:The treatment of cystine stones is a clinical problem. This in vitro study was performed to establish an experimental system that enables standardized and reproducible investigations on chemolysis of cystine stones to look for an improvement of dissolution strategies. MATERIALS AND METHODS:Artif...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.2000.14.451

    authors: Jacobs D,Heimbach D,Müller SC,Hesse A

    更新日期:2000-06-01 00:00:00

  • Routine day-case laparoscopic pyeloplasty: a paradigm shift?

    abstract:PURPOSE:To determine whether day-case surgery (DS) laparoscopic pyeloplasty (LP) is feasible and safe. PATIENTS AND METHODS:Thirty-two consecutive patients, planned for DS LP between March 2006 and January 2010 at a single urologic center, were enrolled in this retrospective observational study. Every patient underwen...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.2010.0486

    authors: Ilie CP,Luscombe CJ,Smith I,Boddy J,Mischianu D,Golash A

    更新日期:2011-05-01 00:00:00

  • Does miniaturization actually decrease bleeding following Percutaneous Nephrolithotomy? A single center Randomized Trial.

    abstract:: Introduction: Miniaturization of percutaneous nephrolithotomy (mPCNL) was proposed to decrease postoperative bleeding, as there is decreased parenchymal injury compared with standard percutaneous nephrolithotomy (SPCNL). Published randomized controlled trials (RCTs) evalua...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.2020.0533

    authors: Thakur A,Sharma AP,Devana SK,Parmar K,Mavuduru R,Bora GS,Mandal À

    更新日期:2020-10-12 00:00:00

  • Pelvic lymph node dissection for patients with elevated risk of lymph node invasion during radical prostatectomy: comparison of open, laparoscopic and robot-assisted procedures.

    abstract:BACKGROUND AND PURPOSE:Published outcomes of pelvic lymph node dissection (PLND) during robot-assisted laparoscopic prostatectomy (RALP) demonstrate significant variability. The purpose of the study was to compare PLND outcomes in patients at risk for lymph node involvement (LNI) who were undergoing radical prostatecto...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.2011.0266

    authors: Silberstein JL,Vickers AJ,Power NE,Parra RO,Coleman JA,Pinochet R,Touijer KA,Scardino PT,Eastham JA,Laudone VP

    更新日期:2012-06-01 00:00:00

  • Long-term results of permanent indwelling wallstents for benign mid-ureteral strictures.

    abstract:BACKGROUND:Benign ureteral strictures are a potentially difficult problem that typically has been solved by open surgery. However, minimally invasive methods would be preferable. PATIENTS AND METHODS:Three patients with benign ureteral strictures were treated with endoscopic placement of self-expanding permanent indwe...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/08927790050152186

    authors: Slavis SA,Wilson RW,Jones RJ,Swift C

    更新日期:2000-09-01 00:00:00

  • Maintaining perioperative normothermia during laparoscopic and open urologic surgery.

    abstract:PURPOSE:The ability to maintain normothermia during surgical procedures is crucial for improvement of the quality of patient care and the outcome of the procedure. We tested the hypothesis of whether one warming protocol is able to maintain normothermic core temperatures equally well in major open and laparoscopic urol...

    journal_title:Journal of endourology

    pub_type: 临床试验,杂志文章

    doi:10.1089/end.2007.0324

    authors: Hoda MR,Popken G

    更新日期:2008-05-01 00:00:00

  • Laparoendoscopic single-site surgery radical nephrectomy.

    abstract::The indications, instrumentation, surgical technique, and complications of laparoendoscopic single-site radical nephrectomy (LESS-RN) are being described in detail in an attempt to familiarize urologists with this novel laparoscopic technique. Our initial experience of 30 consecutive cases of LESS-RN is reported. The ...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.2010.0673

    authors: Stolzenburg JU,Do M,Haefner T,Dietel A,Kallidonis P,Kyriazis I,Beatty J,Liatsikos EN

    更新日期:2011-02-01 00:00:00

  • Irreversible Electroporation for Renal Ablation Does Not Cause Significant Injury to Adjacent Ureter or Bowel in a Porcine Model.

    abstract:: Objective: To evaluate the safety of irreversible electroporation (IRE) for renal ablation adjacent to the ureter or bowel. Materials and Methods: Six adult pigs each underwent bilateral IRE of the kidney. To simulate adjacence...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.2020.0856

    authors: Sorokin I,Canvasser N,Johnson B,Lucas E,Cadeddu JA

    更新日期:2020-12-17 00:00:00

  • Effects of green tea on urinary stone formation: an in vivo and in vitro study.

    abstract:PURPOSE:We evaluated whether epigallocatechin gallate (EGCG), a main constituent of green tea polyphenols, could protect against cellular toxicity by oxalate and whether green tea supplementation attenuates the development of nephrolithiasis in an animal model. MATERIALS AND METHODS:Cells of the NRK-52E line were incu...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.2006.20.356

    authors: Jeong BC,Kim BS,Kim JI,Kim HH

    更新日期:2006-05-01 00:00:00

  • Retrograde Endourological Management of Upper Urinary Tract Abnormalities in Patients with Ileal Conduit Urinary Diversion: A Dual-Center Experience.

    abstract:INTRODUCTION:Patients with ileal conduit urinary diversions are at an increased risk of long-term upper urinary tract (UUT) complications, including anastomotic strictures, infections, and urolithiasis. The reconstructed urinary system poses challenges for endoscopic manipulation. We present and describe our dual-cente...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.2017.0271

    authors: Olson L,Satherley H,Cleaveland P,Zelhof B,Mokete M,Neilson D,Srirangam S

    更新日期:2017-09-01 00:00:00

  • Randomized controlled trial comparing retroperitoneal laparoscopic pyelolithotomy versus percutaneous nephrolithotomy for the treatment of large renal pelvic calculi: a pilot study.

    abstract:PURPOSE:To evaluate the efficacy and safety of retroperitoneal laparoscopic pyelolithotomy (RLP) versus percutaneous nephrolithotomy (PCNL) for large renal pelvic calculi using a randomized controlled trial. MATERIALS AND METHODS:Patients with large renal pelvic calculi were prospectively randomized using matched-pair...

    journal_title:Journal of endourology

    pub_type: 杂志文章,随机对照试验

    doi:10.1089/end.2014.0064

    authors: Li S,Liu TZ,Wang XH,Zeng XT,Zeng G,Yang ZH,Weng H,Meng Z,Huang JY

    更新日期:2014-08-01 00:00:00

  • KIM-1 Is a Potential Urinary Biomarker of Obstruction: Results from a Prospective Cohort Study.

    abstract:INTRODUCTION:Partial or complete obstruction of the urinary tract is a common and challenging urological condition that may occur in patients of any age. Serum creatinine is the most commonly used method to evaluate global renal function, although it has low sensitivity for early changes in the glomerular filtration ra...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.2016.0215

    authors: Olvera-Posada D,Dayarathna T,Dion M,Alenezi H,Sener A,Denstedt JD,Pautler SE,Razvi H

    更新日期:2017-02-01 00:00:00

  • Parenchymal Volumetric Assessment as a Predictive Tool to Determine Renal Function Benefit of Nephron-Sparing Surgery Compared with Radical Nephrectomy.

    abstract:PURPOSE:To develop a preoperative prediction model using a computer-assisted volumetric assessment of potential spared parenchyma to estimate the probability of chronic kidney disease (CKD, estimated glomerular filtration rate [eGFR] <60 mL/min/1.73 m(2)) 6 months from extirpative renal surgery (nephron-sparing surgery...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.2015.0411

    authors: Liss MA,DeConde R,Caovan D,Hofler J,Gabe M,Palazzi KL,Patel ND,Lee HJ,Ideker T,Van Poppel H,Karow D,Aertsen M,Casola G,Derweesh IH

    更新日期:2016-01-01 00:00:00

  • Rates and Predictors of Conversion to Open Surgery During Minimally Invasive Radical Cystectomy.

    abstract:OBJECTIVE:To assess the frequency of minimally invasive radical cystectomy (MIRC) conversion to open surgery, what factors influence conversion, whether or not the benefits of MIRC vs open radical cystectomy (ORC) persist after conversion, and compare ORC and MIRC outcomes. MATERIALS AND METHODS:We performed a retrosp...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.2018.0079

    authors: Ko OS,Weiner AB,Smith ND,Meeks JJ

    更新日期:2018-06-01 00:00:00

  • A simple method for estimating the optimum number of prostate biopsy cores needed to maintain high cancer detection rates while minimizing unnecessary biopsy sampling.

    abstract:OBJECTIVE:The objective was to provide urologists with a simple basis for optimizing the number of prostate biopsy cores that should be taken. METHODS:The records of 1024 patients who had undergone transrectal ultrasound-guided biopsies were reviewed. The prostate volume was divided by the number of biopsies to obtain...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.2009.0285

    authors: Jiang J,Colli J,El-Galley R

    更新日期:2010-01-01 00:00:00

  • Efficacy and Safety of Ultrasonic Longitudinal-Axis Vibration for the Reduction of Ureteral Access Sheath Insertion Force: A Randomized Controlled Trial in a Porcine Model.

    abstract:PURPOSE:Excessive bulking force during ureteral access sheath (UAS) placement may induce injury. The sliding friction between surfaces can be reduced with the application of ultrasonic vibration. We investigated the efficacy and safety of an ultrasonic vibration transducing device for reducing the maximal ureteral acce...

    journal_title:Journal of endourology

    pub_type: 杂志文章,随机对照试验

    doi:10.1089/end.2018.0772

    authors: Koo KC,Lee KS,Min GR,Lee HS,Lim BJ,Kim JS,Kim DW,Park NC

    更新日期:2019-02-01 00:00:00

  • Cystoscopy-assisted laparoscopic resection of extramucosal bladder endometriosis.

    abstract:BACKGROUND AND PURPOSE:Involvement of the bladder is seen in only 1% to 2% of patients with endometriosis. The diagnosis of vesical endometriosis is difficult to formulate, and it should be confirmed by cystoscopy with biopsy. However, this examination is often insufficient because of the submucosal-transmural location...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/089277902761403014

    authors: Seracchioli R,Mannini D,Colombo FM,Vianello F,Reggiani A,Venturoli S

    更新日期:2002-11-01 00:00:00

  • Ureteroscopy with and without safety guide wire: should the safety wire still be mandatory?

    abstract:BACKGROUND AND PURPOSE:Although the evidence is sparse, most urologists advise the insertion of a safety guide wire (SGW) alongside the ureteroscope whenever performing ureteroscopy (URS). The aim of the study was to compare the results of ureteroscopic treatment for ureteral stones at the Oslo University Hospital (OUH...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.2013.0248

    authors: Ulvik Ø,Rennesund K,Gjengstø P,Wentzel-Larsen T,Ulvik NM

    更新日期:2013-10-01 00:00:00

  • Urologic Surgery and COVID-19: How the Pandemic Is Changing the Way We Operate.

    abstract::The coronavirus disease 2019 (COVID-19) pandemic has had a global impact on all aspects of health care, including surgical procedures. For urologists, it has affected and will continue to influence how we approach the care of patients preoperatively, intraoperatively, and postoperatively. A risk-benefit assessment of ...

    journal_title:Journal of endourology

    pub_type: 杂志文章,评审

    doi:10.1089/end.2020.0342

    authors: Steward JE,Kitley WR,Schmidt CM,Sundaram CP

    更新日期:2020-05-01 00:00:00

  • Review: tissue effects of laser energy.

    abstract::The tissue effects of a laser are responsible for the therapeutic value as well as the potential for complications. Within certain constraints, the type and depth of energy effect can be controlled by the selection of the wavelength as well as of appropriate energy parameters. In a clinical endoscopic setting, however...

    journal_title:Journal of endourology

    pub_type: 杂志文章,评审

    doi:10.1089/end.1993.7.389

    authors: Smith JA Jr

    更新日期:1993-10-01 00:00:00

  • Development of a High-Fidelity Robot-Assisted Kidney Transplant Simulation Platform Using Three-Dimensional Printing and Hydrogel Casting Technologies.

    abstract:: Introduction and Objective: Despite the adoption of robotic donor nephrectomy, the steep learning curve of robotic recipient transplantation has hindered the implementation of a complete robot-assisted kidney transplantation (RAKT). We sought to develop a high-fidelity per...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.2020.0441

    authors: Saba P,Belfast E,Melnyk R,Patel A,Kashyap R,Ghazi A

    更新日期:2020-10-01 00:00:00

  • Factors associated with diagnostic accuracy when performing a preablation renal biopsy.

    abstract:BACKGROUND AND PURPOSE:Long-term treatment of patients undergoing definitive management of a small renal mass depends largely on the final pathology determination. Preablation renal biopsy (PABx) is often the only source of determining pathology in patients undergoing thermal ablation of a small renal mass. We sought t...

    journal_title:Journal of endourology

    pub_type: 杂志文章

    doi:10.1089/end.2014.0222

    authors: Lorber G,Jorda M,Leveillee R

    更新日期:2014-12-01 00:00:00