Abstract:
: Purpose: To examine the dusting performance of a novel solid state Thulium laser device compared to a standard holmium:yttrium-aluminum-garnet (Ho:YAG) device. Methods: This study compares a Dornier Medilas H Solvo 35 with an evaluation model of a pulsed solid state thulium:yttrium-aluminum-garnet (Tm:YAG) laser (Dornier MedTech Laser GmbH, Wessling, Germany). The in vitro model consisted of a mold with irrigated water at 37°C. For 2-9 minutes, laser fibers were guided by an xy-plotter in spirals over BegoStones. Stone mass was measured before and after laser application. Comparisons to Ho:YAG and further Tm:YAG investigations were performed. Results: Identical settings with similar pulse durations yielded a significant 14% advantage for Ho:YAG in slow fiber speeds and a tendency toward 15% higher efficiency of Tm:YAG in fast fiber speeds. Increased pulse duration in Tm:YAG led significantly to 32%-54% higher ablation rates in comparison to Tm:YAG in both setups. Ablated mass loss range is 102-1107 mg for slow fiber speeds and 22-528 mg for fast speeds. Mass loss is proportional to pulse energy, frequency, and pulse duration, whereas pulse energy defines the penetration depth into the model stones. Frequency characterizes the ablation homogeneity and possible working speeds. Conclusion: Tm:YAG is significantly more efficient when longer pulse durations are used. Identical settings revealed a strong connection to fiber movement speeds. In addition, the Tm:YAG device enables a broader range of settings with the possibility of minimal pulse energy of 100 mJ for low retropulsion and fine dusting with possible frequencies ≤200 Hz.
journal_name
J Endouroljournal_title
Journal of endourologyauthors
Petzold R,Miernik A,Suarez-Ibarrola Rdoi
10.1089/end.2020.0525subject
Has Abstractpub_date
2020-09-09 00:00:00eissn
0892-7790issn
1557-900Xpub_type
杂志文章abstract:OBJECTIVE:To assess the current treatment of benign prostatic obstruction (BPO) in patients on ongoing oral anticoagulation (OA). METHODS:An Internet survey was sent to all active members of the Endourological Society. The survey contained 32 questions regarding transurethral treatment of BPO in patients on ongoing OA...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2016.0627
更新日期:2017-02-01 00:00:00
abstract:PURPOSE:To analyze the early outcome after single tract vs multiple tracts percutaneous nephrolithotomy (PCNL) in the management of staghorn calculi. PATIENTS AND METHODS:The records of 413 patients with staghorn calculi (223 [54%] had complete and 190 [46%] had partial) who underwent PCNL were reviewed retrospectivel...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2009.0456
更新日期:2010-06-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Several experienced practitioners of open surgery with limited or no laparoscopic background have adopted robot-assisted laparoscopic radical prostatectomy (RLRP) as an alternative to open radical prostatectomy (RRP), demonstrating outcomes comparable to those in large RRP and laparoscopic prosta...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2006.0239
更新日期:2007-04-01 00:00:00
abstract::We describe flexible ureteroscopy-directed retrograde nephrostomy access using a puncture wire to achieve renal access. This is a natural extension of modern retrograde intrarenal surgical techniques and a modernization of the original Lawson technique for retrograde nephrostomy tract creation. In appropriately select...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2012.0160
更新日期:2012-10-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Nephroureterectomy (NU) with bladder cuff excision is the gold standard treatment for patients with upper urinary tract urothelial cancer. We report our initial experience with laparoendoscopic single-site plus one port (LESS POP) technique for NU and bladder cuff excision. PATIENTS AND METHODS:...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2013.0735
更新日期:2014-06-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Criteria for determining the durability of the response to transrectal high-intensity focused ultrasound (HIFU) ablation of prostate cancer have been established by calculating progression-free probability. PATIENTS AND METHODS:A series of 82 patients (mean age 71 +/- 5.7 years) with biopsy-prov...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/end.2000.14.519
更新日期:2000-08-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Bleeding is a major concern during percutaneous nephrolithotomy (PCNL), especially with the use of multiple tracts. This prospective study aimed to identify factors affecting blood loss during PCNL. PATIENTS AND METHODS:Data were collected prospectively from 236 patients undergoing 301 PCNL proc...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2004.18.715
更新日期:2004-10-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Current urologic laparoscopic procedures include preservation of locoregional nerve fibers. The use of electrical coagulation is limited because of tissue conductance of current and heat production. While ultrasonic coagulation does not use electricity, heat is still produced. We designed an anim...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2010.0031
更新日期:2010-11-01 00:00:00
abstract:BACKGROUND AND PURPOSE:An integral component of many urologic reconstructive surgical procedures is the positioning of a Double-J stent to span the anastomosis. Some surgeons prefer to place a retrograde stent during cystoscopy, either during or after the reconstruction. In this communication, we describe our straightf...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2011.0296
更新日期:2012-09-01 00:00:00
abstract:PURPOSE:The CyberKnife (CK), a linear accelerator mounted on a robotic device, enables excellent dose conformation to the target and minimizes dose to surrounding normal tissue. It is a very suitable device for performing hypofractionated stereotactic body radiotherapy as monotherapy for low- to intermediate-risk prost...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2009.0438
更新日期:2010-05-01 00:00:00
abstract::The permanent Urolume Wallstent has been used for the relief of bladder outlet obstruction (BOO), detrusor-external sphincter dyssnergia (DESD), and recurrent bulbar urethral strictures. Because of its woven construction, it allows ingrowth of urothelial tissue, resulting in complete epithelialization by 6 to 12 month...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1089/end.1997.11.477
更新日期:1997-12-01 00:00:00
abstract:OBJECTIVE:To evaluate perioperative morbidity and mortality rate, a 3-year recurrence-free survival, and cancer-specific mortality rate in patients older than 80 years undergoing robot-assisted radical cystectomy (RARC). MATERIALS AND METHODS:We retrospectively collected data of 155 consecutive patients who received R...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2016.0050
更新日期:2016-07-01 00:00:00
abstract::The appropriate position of the hand-access device and trocars for hand-assisted laparoscopic surgery depends on several factors, including the surgeon's preference, physical stature, and handedness; the patient's anatomy; and the type of procedure being performed. This article reviews the options, including measures ...
journal_title:Journal of endourology
pub_type: 杂志文章,评审
doi:10.1089/089277904323056843
更新日期:2004-05-01 00:00:00
abstract:PURPOSE:To determine whether on-clamp partial nephrectomy (ON-PN) has any significant impact on long-term renal function in a two kidney model. PATIENTS AND METHODS:From November 1999 to July 2013, 607 patients underwent PN at our institution. After excluding patients with solitary kidneys, multiple renal masses, and ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2014.0476
更新日期:2015-04-01 00:00:00
abstract::Small renal lesions often confer relatively low oncologic risk and, as such, dictate for treatment strategies with low morbidity. Minimally invasive ablative techniques have been developed and can deliver good outcomes where used judiciously. The potential risks of treatment relate to the method of ablation, the route...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2009.0542
更新日期:2010-05-01 00:00:00
abstract::Because it is still a puzzling debate whether ligation of a unilateral varicose spermatic vein is worth performing by laparoscopy, even with the two-port technique, we conducted a study in which 280 patients with palpable left varicoceles were treated with spermatic vein ligation either by open surgery (120 patients) ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1996.10.435
更新日期:1996-10-01 00:00:00
abstract:INTRODUCTION:Laparoscopic partial nephrectomy (LPN) has not received widespread clinical application because of its technical challenge. Bovine serum albumin glutaraldehyde (BSAG) is a hemostatic agent that is independent of the clotting cascade. We evaluated the use of BSAG as the sole agent for parenchymal and collec...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2009.0200
更新日期:2010-03-01 00:00:00
abstract:PURPOSE:To review the management approach to and results of severely encrusted retained ureteral stents and analyze predictive risk factors. PATIENTS AND METHODS:Medical records from January 1996 to March 2006 were reviewed for Double-J stent complications and their final outcome. A total of 876 stents were inserted i...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2006.0250
更新日期:2007-06-01 00:00:00
abstract:: Purpose: To review the literature on optimal methods of drainage for obstructive urolithiasis in adult patients, comparing percutaneous nephrostomy (PCN) with retrograde ureteral catheterization (Double J [JJ]) regarding success of procedure, efficacy, complications, quali...
journal_title:Journal of endourology
pub_type: 杂志文章,评审
doi:10.1089/end.2019.0309
更新日期:2019-10-01 00:00:00
abstract:: Objectives: Malignant ureteral obstruction (MUO) is a devastating complication of cancer, and it is commonly treated by drainage via percutaneous nephrostomy (PCN). The objective of this study was to determine the efficacy, safety, and functional outcome of tandem ureteral...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2019.0685
更新日期:2020-02-01 00:00:00
abstract:PURPOSE:We retrospectively investigated the factors that affect the success of rigid ureteroscopy in the pediatric population for the management of pediatric ureteral stones. PATIENTS AND METHODS:We present a retrospective review of 61 consecutive pediatric patients who underwent 66 rigid ureteroscopy procedures for u...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2009.0476
更新日期:2010-08-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Holmium:YAG lithotripsy of uric acid calculi produces cyanide. The laser and stone parameters required to produce cyanide are poorly defined. In this study, we tested the hypotheses that cyanide production: (1) varies with holmium:YAG power settings; (2) varies among holmium:YAG, pulsed-dye, and ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2000.14.169
更新日期:2000-03-01 00:00:00
abstract:: Objective: To assess the safety and efficacy of a novel vacuum-assisted access sheath (VAAS) in minimally invasive percutaneous nephrolithotomy (MPCNL). Materials and Methods: Seventy-five consecutive patients with single renal...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2019.0652
更新日期:2020-03-01 00:00:00
abstract::Technique for apical dissection and control of the dorsal vein complex (DVC) during robot-assisted laparoscopic radical prostatectomy (RALP) affects blood loss, apical positive margins, and recovery of urinary control. Over the past 7 years, our technique for apical dissection has been spurred by the overarching goal ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2012.0415
更新日期:2012-12-01 00:00:00
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
更新日期:1999-05-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Several kinds of flexible ureteroscopes are in use for the removal of kidney stones. This study evaluated and compared the characteristics of four new-generation flexible ureteroscopes. MATERIALS AND METHODS:The flexible ureteroscopes studied were: the ACMI Dur-8 Elite, the Storz Flex-X2 the Oly...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2008.0371
更新日期:2008-10-01 00:00:00
abstract:PURPOSE:We present our experience in the design and development of a training program in laparoscopic radical prostatectomy (LRP), and the validation of the first steps of the program by objective measurement of the attendants' skills improvement and subjective evaluation of its contents. MATERIALS AND METHODS:Our tra...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2014.0050
更新日期:2014-07-01 00:00:00
abstract:BACKGROUND AND PURPOSE:We have developed novel iron-based microparticles (Fe-MP) that bind to calcium oxalate stone fragments, rendering them paramagnetic. Previously, we demonstrated enhanced efficiency of stone extraction in an inanimate model using magnetic instrumentation. Before in vivo stone extraction studies, w...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2010.0419
更新日期:2011-07-01 00:00:00
abstract:INTRODUCTION/OBJECTIVE:We sought to examine the contemporary relationship between case volume and outcome for percutaneous nephrolithotomy (PCNL) using a publically available administrative database. METHODS:A weighted sample of 7785 patients was obtained from the 2010 Healthcare Cost and Utilization Project (HCUP) Na...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2013.0172
更新日期:2013-09-01 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