Abstract:
:A new tip design of a 3.3F electrohydraulic probe for endoureteral lithotripsy was evaluated in comparison to a regular probe. The peak pressure, as well as the slope of the shock front, depend solely on the voltage. Increasing the capacity leads merely to broader pulses. A laser-like short high-pressure pulse has a greater impact on stone disintegration than a corresponding broader low-pressure pulse of the same energy. Using the regular probe, only positive pressures were obtained. Pressure distribution around the regular tip was approximately spherical, whereas the modified probe tip "beamed" the shock wave to a great extent. In addition, a negative-pressure half-cycle was added to the initial positive peak pressure, which resulted in a higher maximal pressure amplitude. The directed shock wave had a greater depth of penetration into a model stone. Thus, the ability of the new probe to destroy harder stones especially should be greater. The trauma to the ureter was reduced when touching the wall tangentially. No difference in the effect of the two probes was seen when placing the probe directly on the mucosa.
journal_name
J Endouroljournal_title
Journal of endourologyauthors
Vorreuther Rdoi
10.1089/end.1993.7.35subject
Has Abstractpub_date
1993-02-01 00:00:00pages
35-43issue
1eissn
0892-7790issn
1557-900Xjournal_volume
7pub_type
杂志文章abstract:BACKGROUND AND PURPOSE:Cryoablation has demonstrated therapeutic effectiveness for selected renal tumors. We compared our perioperative and short-term outcomes of laparoscopic (LAP) v percutaneous (PERC) renal cryoablation. PATIENTS AND METHODS:Thirty-four patients (18 men/16 women) underwent a LAP and 26 patients (19...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2008.0196
更新日期:2008-11-01 00:00:00
abstract:PURPOSE:To evaluate the feasibility and safety of two concomitant robot-assisted procedures in the same patient in one anesthesia setting. PATIENTS AND METHODS:Data were reviewed for 15 patients for whom two concomitant robot-assisted surgeries at our center were planned. Preoperative details, port position, intraoper...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2008.0481
更新日期:2009-02-01 00:00:00
abstract:PURPOSE:Large stone burden can be treated ureteroscopically, but the treatment often requires more than one procedure. Placement of a preoperative stent may theoretically enhance stone clearance by dilating the ureter to facilitate both access and stone removal. This study determines the impact of stent placement befor...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2010.0400
更新日期:2011-05-01 00:00:00
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
更新日期:2015-06-01 00:00:00
abstract:PURPOSE:To assess the effectiveness of palladium-103 brachytherapy in stage T1 and T2 adenocarcinoma of the prostate. PATIENTS AND METHODS:The charts of 1048 patients treated between 1991 and 1999 with transperineal realtime ultrasound-guided (103)Pd (Theraseed) implants were reviewed to assess the effects on serum pr...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2000.14.343
更新日期:2000-05-01 00:00:00
abstract:: Objectives: To describe our surgical technique of robotic ureteroileal reimplantation (RUIR) for ureteroileal anastomosis strictures with the use of near-infrared fluorescence imaging (NIFI) after transnephrostomic antegrade injection of indocyanine green in patients previ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2019.0376
更新日期:2019-10-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Laparoscopic pyeloplasty (LP) for the repair of ureteropelvic junction (UPJ) obstruction provides results similar to those of open pyeloplasty with less morbidity, but its use has been limited, as it requires advanced laparoscopic skills. Robotic computer-assisted pyeloplasty (RAP) has the potent...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2006.20.813
更新日期:2006-10-01 00:00:00
abstract:: Introduction: To compare short- and midterm outcomes of the first 55 patients undergoing robot-assisted kidney transplant (RAKT) with patients undergoing open kidney transplant (OKT) during the same period in a tertiary care hospital. Materials and...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2020.0213
更新日期:2020-09-01 00:00:00
abstract::It seems likely, and indeed inevitable, that medical device usage will continue its rapid increase over the next 10 to 20 years and beyond. For surgeons, these new inventions will come in many forms but should take into account biocompatibility and resistance to encrustations and to microorganisms. This review focuses...
journal_title:Journal of endourology
pub_type: 杂志文章,评审
doi:10.1089/end.1999.13.1
更新日期:1999-02-01 00:00:00
abstract:BACKGROUND AND PURPOSE:There remains equipoise with regard to whether laparoscopic radical prostatectomy (LRP) or robot-assisted radical prostatectomy (RARP) has any benefit over the other. Despite this, there is a trend for the increasing adoption of RARP at great cost to health services across the world. The aim was ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2014.0810
更新日期:2015-08-01 00:00:00
abstract::Percutaneous renal access is an integral step in percutaneous renal drainage and percutaneous nephrolithotomy. Urologists are increasingly obtaining access themselves, as this eliminates reliance on a second "surgeon" and increases flexibility with respect to procedure timing and the location of the access tract. Surp...
journal_title:Journal of endourology
pub_type: 杂志文章,评审
doi:10.1089/end.2007.9981
更新日期:2007-03-01 00:00:00
abstract::Five patients with major (Grade IV) renal trauma required ureteral stent placement to facilitate urinary drainage. Three of these patients had stents placed for recurrent gross hematuria with flank pain. All three had obstructing blood clots present at the time of stent placement. The fourth patient had a stent placed...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1998.12.545
更新日期:1998-12-01 00:00:00
abstract:INTRODUCTION:Renal papillary pits are commonly encountered during ureteroscopy. The mechanism by which such pits arise is unclear. One hypothesis is that pits represent sites where stones overgrowing Randall's plaque (RP) were dislodged. We sought to examine this theory by using digital ureteroscopy and stone μCT. MAT...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2018.0589
更新日期:2019-04-01 00:00:00
abstract:PURPOSE:To compare the outcomes of retroperitoneoscopic nephroureterectomy (RNU) with those of open retroperitoneal nephroureterectomy (ORNU) for upper urinary tract cancer. PATIENTS AND METHODS:This study included 240 consecutive patients who received a clinical diagnosis of localized upper urinary tract cancer and u...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/end.2007.0154
更新日期:2008-08-01 00:00:00
abstract:PURPOSE:To assess the clinical efficacy and safety of photoselective laser vaporization of the prostate (PVP) in the treatment of patients with acute urinary retention (AUR) secondary to benign prostatic hyperplasia (BPH). PATIENTS AND METHODS:Forty-two patients (mean age 72 +/- 5 years, range 65-89) with AUR because ...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/end.2007.0045
更新日期:2008-03-01 00:00:00
abstract:OBJECTIVES:To determine the accuracy of the surgeon's impression as to the stone-free rate at the end of percutaneous nephrolithotomy (PCNL), and to evaluate predictors for inaccurate estimation. MATERIALS AND METHODS:A prospective study conducted between 2010 and 2015. Surgeon's impression, categorized as "insignific...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2018.0005
更新日期:2018-06-01 00:00:00
abstract:INTRODUCTION:Intradetrusor injection of onabotulinumtoxinA (BTX-A) can be performed with rigid or flexible cystoscopy. The primary aim of this study was to analyze irrigant flow rate and total angle of deflection for the intradetrusor injection needles used for flexible cystoscopic injection of BTX-A to see if any need...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2015.0128
更新日期:2015-11-01 00:00:00
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
更新日期:2017-02-01 00:00:00
abstract::Vesicourethral reconstruction is the most critical and time-consuming step of laparoscopic radical prostatectomy. We describe the use of two hemicircumferential running sutures that has significantly simplified the procedure in our last 30 patients. The vesicourethral reconstruction took 31 minutes on average. Six mon...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2000.14.749
更新日期:2000-11-01 00:00:00
abstract::Complications from laparoscopically placed staples are rare. We present two patients with ureteral obstruction secondary to eroded staples. Each patient had a remote history of laparoscopic abdominal or pelvic surgery and was treated with endoscopic removal and short-term ureteral stenting. The clinical presentation a...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2006.20.659
更新日期:2006-09-01 00:00:00
abstract:PURPOSE:To describe and evaluate a novel method of direct ultrasonography (US)-guided percutaneous embolization of renal pseudoaneurysm. PATIENTS AND METHODS:Fourteen patients with severe hematuria were included in this study from February 2005 to February 2006. They included five patients with penetrating renal traum...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/end.2008.0559
更新日期:2009-06-01 00:00:00
abstract:: Introduction: Calcium oxalate (CaOx) is the predominate component within renal calculi and can be divided into two subtypes: CaOx-monohydrate (COM) and CaOx-dihydrate (COD). COM and COD form in differing urinary environments, which suggest differential underlying metabolic...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2019.0245
更新日期:2019-09-01 00:00:00
abstract:INTRODUCTION/PURPOSE:Medical simulation offers the advantage of improving resident skill and comfort without impacting patient care. Five years ago, we identified trends in the use of robotic and laparoscopic simulation in 2008 and 2009 at American urology residency training programs. We seek to identify the changes in...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2015.0561
更新日期:2016-03-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Kidney stone disease is rare in the South African black (B) population and more prevalent in the white (W) population. Genetic studies have not previously examined this anomaly. The AGT Pro11Leu polymorphism in the alanine:glyoxylate aminotransferase (AGT) enzyme has been suggested as possibly pl...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2013.0617
更新日期:2014-05-01 00:00:00
abstract:OBJECTIVE:To evaluate the effects on the potency of a bilateral cavernosal nerve-sparing approach to robot-assisted radical cystectomy (RARC) in a preoperatively potent population. PATIENTS AND METHODS:We conducted a retrospective review of 254 patients who underwent RARC between 2003 and 2012 at our single institutio...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2014.0315
更新日期:2014-11-01 00:00:00
abstract:BACKGROUND:To investigate perioperative outcomes, the learning curve, and 2-year follow-up after transurethral enucleation with bipolar (TUEB) for patients with benign prostatic hyperplasia (BPH). METHODS:From December 2011 to October 2016, 603 consecutive patients underwent TUEB for BPH, performed by a single surgeon...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2017.0092
更新日期:2017-07-01 00:00:00
abstract::In cases of advanced urologic malignancies with impairment of renal function secondary to tumor infiltration in high-risk patients, the possibility of performing a laparoscopic instead of an open cutaneous ureterostomy should be considered. We performed laparoscopic cutaneous ureterostomy in three male patients, two w...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1994.8.425
更新日期:1994-12-01 00:00:00
abstract:BACKGROUND AND PURPOSE:There is a continuing reluctance among transplant surgeons to procure a right-kidney allograft laparoscopically. We describe our experience with right laparoscopic donor nephrectomy (RLDN) by three techniques. PATIENTS AND METHODS:We retrospectively analyzed all seven RLDNs performed at our cent...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2006.20.309
更新日期:2006-05-01 00:00:00
abstract::Transurethral resection of bladder tumor (TURBT) is the standard of care for initial bladder tumor management. In response to its shortcomings, we propose an alternative technique for tumor resection and retrieval: The endoscopic snare resection of bladder tumor (ESRBT). Eleven tumors managed by ESRBT were reviewed re...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2011.0587
更新日期:2012-06-01 00:00:00
abstract::Renal excursion during breathing is inevitable and is a cause of poor localization during extracorporeal shock-wave lithotripsy (SWL), which in theory might lead to poor treatment results. Eighty-one patients underwent lithotripsy treatment with and without the use of an image enhancement system designed for use with ...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1089/end.1996.10.335
更新日期:1996-08-01 00:00:00