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 urinary model (kidney and ureter) were used to measure the overall flow through obstructed and unobstructed ureters with either a 3F Double-J stent (Cook), 3F MicroStent (PercSys), or 4.7F Double-J stent (Cook). Mean flow rates were compared with descriptive statistics. RESULTS:Mean flow rates through the obstructed silicone ureter (12-mm stone) for the 3F MicroStent, 3F Double-J stent, and 4.7F Double-J stent were 326.7±13.3 mL/min, 283.3±19.2 mL/min, and 356.7±14.1 mL/min, respectively. In the obstructed ex vivo porcine ureter model, the flow as a percentage of free flow was 60%, 53%, and 50 %, respectively. In both ureteral models, flow rates of the 3F MicroStent and 4.7F Double-J stents were not statistically different. CONCLUSIONS:The 3F MicroStent demonstrated drainage equivalent to a 4.7F Double-J stent, in both in vitro silicone and ex vivo porcine obstructed urinary models. We have demonstrated the crucial first step that this 3F stent, using a novel film occlusion anchoring mechanism, has equivalent, if not slightly improved, drainage rates when compared with its larger counterpart.
journal_name
J Endouroljournal_title
Journal of endourologyauthors
Lange D,Hoag NA,Poh BK,Chew BHdoi
10.1089/end.2010.0722subject
Has Abstractpub_date
2011-06-01 00:00:00pages
1051-6issue
6eissn
0892-7790issn
1557-900Xjournal_volume
25pub_type
杂志文章abstract::Minimal bleeding during endoscopic surgery of the urinary tract may prevent optimum vision. We used neurosurgical patties for dissection during our laparoscopic procedures in the pediatric population and aimed to describe this technique as an alternative to standard ways of dissection during laparoscopic procedures. W...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2010.0435
更新日期:2011-05-01 00:00:00
abstract:OBJECTIVE:To determine the preoperative and perioperative predictive factors of morbidity/mortality in patients undergoing percutaneous nephrolithotomy (PCNL), using the Clavien's classification. MATERIALS AND METHODS:We performed a retrospective chart review of patients who underwent PCNL between January 2005 and Jan...
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journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2005.19.880
更新日期:2005-09-01 00:00:00
abstract::Endopyelotomy is currently advocated for management of the obstructed ureteropelvic junction (UPJ). Healing of the stented UPJ occurs by secondary intention. Regardless of the method employed, success rates approach 85%. In order to increase the rate of success, we have devised a method of performing endopyelotomy in ...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/end.1996.10.147
更新日期:1996-04-01 00:00:00
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
更新日期:2019-02-01 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...
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pub_type: 杂志文章
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journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2015.0747
更新日期:2016-05-01 00:00:00
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journal_title:Journal of endourology
pub_type: 杂志文章
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journal_title:Journal of endourology
pub_type: 杂志文章
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journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2007.0300
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journal_title:Journal of endourology
pub_type: 杂志文章,随机对照试验
doi:10.1089/end.2017.0444
更新日期:2017-11-01 00:00:00
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
更新日期:2020-12-28 00:00:00
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journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2000.14.471
更新日期:2000-08-01 00:00:00
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journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2008.0615
更新日期:2009-06-01 00:00:00
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journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1995.9.85
更新日期:1995-04-01 00:00:00
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journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/end.2009.0480
更新日期:2010-06-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Retroperitoneoscopy is an established procedure for renal surgery. We evaluated our results with retroperitoneoscopic pyeloplasty for ureteropelvic junction (UPJ) obstruction. PATIENTS AND METHODS:In 14 female and 10 male patients, a retroperitoneoscopic pyeloplasty was performed (13 right/11 le...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2004.18.948
更新日期:2004-12-01 00:00:00
abstract::A patient with a lymphocele after laparoscopic pelvic lymphadenectomy and radical retropubic prostatectomy was treated successfully with a single instillation of diatrizoate meglumine through a Jackson-Pratt drain. The authors review the origin of lymphoceles and various methods for treating them. ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1993.7.337
更新日期:1993-08-01 00:00:00
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journal_title:Journal of endourology
pub_type: 杂志文章
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doi:10.1089/end.2020.0681
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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
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pub_type: 杂志文章
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更新日期:2005-01-01 00:00:00
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journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2019.0317
更新日期:2019-09-01 00:00:00
abstract:BACKGROUND:Tubercular cold abscess of the seminal vesicle is very rare, and only a few cases are reported in literature. Preoperative diagnosis is difficult and to the best of our knowledge has not been reported. CASE REPORT:A 35-year-old man presented with a 7-year history of blood in the semen and a reddish brownish...
journal_title:Journal of endourology
pub_type: 杂志文章
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更新日期:2006-06-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Transurethral resection of the bladder (TURB), the first step in treatment of patients with urothelial bladder cancers, is limited by technicalities, surgeon skill, and random chance. When high-risk superficial diseases are discovered, a repeated TURB is indicated. We reviewed current literature ...
journal_title:Journal of endourology
pub_type: 杂志文章,meta分析,评审
doi:10.1089/end.2011.0081
更新日期:2011-11-01 00:00:00
abstract::Endoscopic fetal surgery may reduce preterm labor associated with open hysterotomy but is partially limited by current visualization technology. We investigated a three-dimensional (3D) imaging system coupled to a head-mounted display (3D-HMD) and also employed a computer-controlled zoom endoscope for noninsufflated a...
journal_title:Journal of endourology
pub_type: 杂志文章
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更新日期:1998-10-01 00:00:00
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journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2007.0299
更新日期:2008-02-01 00:00:00
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journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2010.0695
更新日期:2011-11-01 00:00:00