Abstract:
PURPOSE:This report describes a new animal model for research on the parameters of shockwave delivery and the mechanisms of shockwave action in SWL. MATERIALS AND METHODS:Female pigs (approximately 45 kg) were anesthetized for creation of an upper pole peripheral caliceal access. The tract was dilated with a 30F Nephromax balloon and Amplatz sheath, and a 24F rigid nephroscope was used to guide a gypsum artificial stone into a lower pole calix. An internal ureteral stent was then placed. After a 2-hour recovery period, lithotripsy was performed using an unmodified Dornier HM3 lithotripter. Following SWL, en bloc excision of the urinary tract was performed, and the stone fragments were collected. RESULTS:As observed by nephroscopy, most stones were surrounded by urine that was free of clot or debris. Urine output was >1 mL/kg per minute by the time the animal was positioned for SWL after a 2-hour observation period. When the conditions of shockwave (SW) exposure were 400 SWs, 20 kV, and 120 SW/min, the efficiency of stone fragment recovery was 85% +/- 2% (N = 6 stones). CONCLUSIONS:This procedure provides a minimally invasive method for placement of model stones of clinically relevant size within the pig kidney. Stone implantation is efficient and permits experiments to be conducted in 1 day. Stone fragmentation can be quantitated, and the animal can serve as its own control. Long-term experiments are also feasible. Overall, this new animal model is appropriate for experimentation on the parameters of SW delivery in SWL.
journal_name
J Endouroljournal_title
Journal of endourologyauthors
Paterson RF,Lingeman JE,Evan AP,Connors BA,Williams JC Jr,McAteer JAdoi
10.1089/089277902320913215subject
Has Abstractpub_date
2002-10-01 00:00:00pages
543-7issue
8eissn
0892-7790issn
1557-900Xjournal_volume
16pub_type
杂志文章abstract:AIM:To analyze the impact of slowing the shockwave delivery during extracorporeal shockwave lithotripsy (SWL) on the clinical patient outcome and the cost of delivering this service in a community practice. PATIENTS AND METHODS:The data from 1745 consecutive SWL procedures were analyzed at a freestanding surgery cente...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2009.0656
更新日期:2010-09-01 00:00:00
abstract::The literature on standard laparoscopic radical prostatectomy (LRP) and robot-assisted radical prostatectomy (RARP) is replete with technical descriptions of the primary surgeon's responsibility, but deficient with regard to the detailed role of the assistant surgeon. This video paper describes the critical role of th...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2007.9837
更新日期:2008-04-01 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: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: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:PURPOSE:To present our initial experience with single-port laparoscopic urologic surgery via the retroperitoneal approach using the Alexis wound retractor with flexible laparoscopic instrumentation. PATIENTS AND METHODS:Since December 2008, 14 patients have undergone single-port laparoscopic surgery for various urolog...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2009.0254
更新日期:2009-11-01 00:00:00
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
更新日期:2002-05-01 00:00:00
abstract:PURPOSE:Retroperitoneal lymph node dissection is the most sensitive and specific diagnostic modality for detecting occult lymph node metastases in clinical stage I testicular tumor. In stage II disease, residual tumors after chemotherapy have to be removed surgically. To reduce the morbidity of these procedures we have...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/089277901300189538
更新日期:2001-05-01 00:00:00
abstract::In one-third of patients, prostate cancer (PCa) is monofocal. These patients can undergo focal high-intensity focused ultrasound (HIFU) therapy of the tumor without damage to surrounding structures and not compromising uro-oncologic safety. Robot-assisted HIFU coagulates the entire targeted volume within the prostate ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2009.0439
更新日期:2010-05-01 00:00:00
abstract:PURPOSE:To investigate a new method and its effect on the procedure of dilating the ejaculatory duct and flushing the seminal vesicle with an F9 seminal vesicle scope in patients with chronic and recurrent seminal vesiculitis. PATIENTS AND METHODS:Twenty-six patients with a diagnosis based to signs, laboratory detecti...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/end.2010.0456
更新日期:2011-11-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Extracorporeal shockwave therapy (ESWT) has been reported to improve the symptoms of Peyronie's disease. However, the response rates to this treatment appear to be variable. This study aimed to determine whether any patient or plaque characteristics are associated with a better outcome. PATIENTS...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2006.20.135
更新日期:2006-02-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Clinical and surgical factors predict renal function decline after laparoscopic partial nephrectomy (LPN). Additional histopathologic predictors may be found in the specimen's nonneoplastic tissue but were not studied. This study investigated the significance of histologic findings in addition to...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2010.0646
更新日期:2011-09-01 00:00:00
abstract:PURPOSE:To assess the long-term outcome of early endoscopic realignment (EER) of complete posterior urethral disruption. PATIENTS AND METHODS:The study included 11 consecutive patients with complete posterior urethral disruption secondary to a road accident (n = 9) or a falling impact (n = 2). EER was performed using ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2010.0069
更新日期:2010-07-01 00:00:00
abstract:AIM AND BACKGROUND:Posttransplant vesicoureteral reflux (VUR) is a common urologic complication after renal transplantation, although its management is controversial. The treatment of choice is open surgical revision ureteral reimplantation with significant morbidity. Recently, endoscopic correction by using nonanimal ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2010.0219
更新日期:2010-10-01 00:00:00
abstract::Vesicoureteral reflux (VUR) in the animal model for experimental purposes can be created either by open transvesical or endoscopic techniques. The concept of reflux creation is the same for both techniques: incision of the roof of the intramural portion of the ureter at the 12 o'clock position. The open method has the...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1998.12.41
更新日期:1998-02-01 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:: Introduction: This exploratory retrospective analysis examined any potential prognostic role of preoperative neutrophil lymphocyte ratio (NLR) for progression-free survival (PFS) and time to endoscopically verified upper tract or bladder recurrence-free survival (RFS) in u...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2020.0283
更新日期:2020-09-01 00:00:00
abstract:: Introduction: There has been a surge in robotic surgery research publications over the past 20 years. However, to date, there has been no characterization of urology's contribution to the robotic field, and there is a lack of bibliometric literature to guide future investi...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2018.0866
更新日期:2019-05-01 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
abstract:BACKGROUND AND PURPOSE:The role of volumetric estimation is becoming increasingly important in the staging, management, and prognostication of benign and cancerous conditions of the kidney. We evaluated the use of three-dimensional reconstruction volume (3DV) in determining renal parenchymal volumes (RPV) and renal tum...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2013.0796
更新日期:2014-06-01 00:00:00
abstract:PURPOSE:To assess the safety and effectiveness of laparoscopic retroperitoneal surgery and attempt to define its role in the management of urolithiasis. PATIENTS AND METHODS:Laparoscopic retroperitoneal surgery (LRS) was undertaken in 72 male and 42 female patients with calculous disease from March 1994 to April 2000 ...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/08927790152596271
更新日期:2001-09-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Laparoscopic inguinal hernia repair has become a frequently performed procedure. It is thus inevitable that some candidates for radical prostatectomy for prostatic carcinoma will have undergone such previous intervention. Mesh placement in the space of Retzius as performed in laparoscopic hernia ...
journal_title:Journal of endourology
pub_type: 杂志文章,meta分析,评审
doi:10.1089/end.2012.0285
更新日期:2012-11-01 00:00:00
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
更新日期:2011-02-01 00:00:00
abstract::A new semiflexible and steerable cannula was designed for endoscopic reflux operations on infants and children. Because of its small diameter (0.6 mm; < 2F), it fits even through the 9F infant cystoscope. ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1994.8.131
更新日期:1994-04-01 00:00:00
abstract:PURPOSE:We describe a technique for safely accessing an upper pole calix through a 9th or 10th intercostal puncture. PATIENTS AND METHODS:A 9th or 10th intercostal access was used for percutaneous nephrolithotomy (PCNL) in nine patients. Thoracoscopy via the 5th or 6th intercostal space was used to ensure safe passage...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/089277901750426337
更新日期:2001-08-01 00:00:00
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 e...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2020.0525
更新日期:2020-09-09 00:00:00
abstract:: Purpose: The conventional flexible ureteroscope has limited access into the lower calix and often causes biomechanical stress to surgeons. Recently, a novel flexible ureteroscope with an omnidirectional bending tip with a joystick-type control unit (URF-Y0016; Olympus, Jap...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2019.0895
更新日期:2020-06-01 00:00:00
abstract:BACKGROUND:Stents are used abundantly to maintain ureteral patency. The majority are plastic tubes that adjust easily to upper urinary-tract motion. Recently, a coiled-wire lumenless stent was introduced (ZebraStent, Neo Medical, Munich, Germany) to facilitate expulsion of stone fragments after lithotripsy. Its metal c...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2006.9862
更新日期:2008-02-01 00:00:00
abstract::The surgical treatment of prostatic obstruction associated with a clinically significant bladder diverticulum has classically combined open diverticulectomy with relief of the bladder outlet obstruction. This report demonstrates that this result may be efficiently achieved by performing transurethral surgery followed ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1996.10.545
更新日期:1996-12-01 00:00:00
abstract::The recent evolution of actively deflectable, flexible endoscopes has included the flexible cystoscope. Improvements in optics, deflectability, and the size of the outer sheath and working channel have been accomplished. A superior flexible cystoscope is one with an outer sheath of 16F or less and working channel larg...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1993.7.527
更新日期:1993-12-01 00:00:00