Abstract:
PURPOSE:Ureteral stents are commonly inserted under fluoroscopic guidance. Our objective was to determine the intravesical landmarks for stent insertion by mapping the fluoroscopic location of the ureteral orifices (UOs) and bladder neck (BN) in relation to the pubic symphysis (PS). METHODS:In patients undergoing ureteroscopy, the UO to BN distance was measured during cystoscopy with a 5F ureteral catheter. Radiographic distance between the UO, BN, and superior border of the PS was determined by mapping their locations on digital fluoroscopic images. Measurements were performed with a full (to 50 cm H2O) and empty bladder. RESULTS:With an empty bladder, the mean cystoscopic BN to UO distance was 1.8 cm (+/- 0.4) for men (n = 10) and 2.0 cm (+/- 0.4) for women (n = 11). With a full bladder, it was 2.8 cm (+/- 0.5) for men and 2.9 cm (+/- 0.6) for women. Although the intravesical distance lengthened during cystoscopy (by 50%), there was no difference when viewed fluoroscopically; the BN to UO distance lengthened by only 15%. In men, the UOs were located superior to PS in the majority (83% and 95%, empty and full bladder, respectively). In women, however, the UOs resided behind the PS (73% and 50%, empty and full bladder, respectively). The BN in men was also cephalad to that in women (P = 0.01); superior to the PS in 50%; and behind the upper two thirds of the PS in 50%. In women, the BN was behind the lower two thirds of the PS in the majority (81%). CONCLUSIONS:During fluoroscopic ureteral stent insertion, the radiopaque marker of the stent positioner is situated at the superior border of the PS in men and behind the lower one third of the PS in women, permitting formation of an intravesical distal coil. One way to remember this is that men are on top and women are on the bottom of the PS.
journal_name
J Endouroljournal_title
Journal of endourologyauthors
Perks AE,Schuler TD,Pace K,Honey RJdoi
10.1089/end.2008.0048subject
Has Abstractpub_date
2008-06-01 00:00:00pages
1203-7issue
6eissn
0892-7790issn
1557-900Xjournal_volume
22pub_type
杂志文章abstract::In current clinical practice, lidocaine gel is widely used as a local anesthetic lubricant before various forms of transurethral instrumentation. Over the past few years, the value of local anesthesia during urethral catheterization and flexible or rigid cystoscopy has been questioned. Strong data are lacking, and the...
journal_title:Journal of endourology
pub_type: 杂志文章,评审
doi:10.1089/end.2008.0650
更新日期:2009-05-01 00:00:00
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journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2006.20.483
更新日期:2006-07-01 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
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更新日期:2020-09-01 00:00:00
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pub_type: 杂志文章
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更新日期:2013-10-01 00:00:00
abstract::Abstract Since the first description of percutaneous nephrolithotripsy (PNL) over 30 years ago, the indications for this procedure in the management of upper tract urinary stones has greatly expanded. Despite recent advances in shock wave lithotripsy and ureteroscopic technologies, PNL maintains a dominant role in the...
journal_title:Journal of endourology
pub_type: 杂志文章,评审
doi:10.1089/end.2009.1518
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pub_type: 杂志文章
doi:10.1089/end.2017.0210
更新日期:2017-08-01 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
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更新日期:1997-12-01 00:00:00
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pub_type: 杂志文章
doi:10.1089/end.2012.0344
更新日期:2012-12-01 00:00:00
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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
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doi:10.1089/end.2012.0388
更新日期:2012-12-01 00:00:00
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pub_type: 杂志文章,评审
doi:10.1089/089277904773582750
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pub_type: 杂志文章,评审
doi:10.1089/089277901317203056
更新日期:2001-12-01 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
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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:BACKGROUND AND PURPOSE:During robot-assisted radical prostatectomy (RARP), patients remain in a steep Trendelenburg position. This can cause positioning injuries as well as rhabdomyolysis. The primary diagnostic indicator of rhabdomyolysis is elevated serum creatine kinase (CK). We investigate whether RARP with extende...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2012.0169
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Adrenalectomy is indicated for patients with large adrenal lesions or functional tumors. Cryoablation is currently used as a surgical alternative for the treatment of prostate, lung, brain, pharynx, and liver tumors. The purpose of this study was to determine if cryosurgery could be delivered ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1999.13.299
更新日期:1999-05-01 00:00:00
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journal_title:Journal of endourology
pub_type: 杂志文章
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更新日期:2013-09-01 00:00:00
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更新日期:2009-02-01 00:00:00
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journal_title:Journal of endourology
pub_type: 杂志文章
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更新日期:2001-08-01 00:00:00
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journal_title:Journal of endourology
pub_type: 杂志文章
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更新日期:2008-12-01 00:00:00
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journal_title:Journal of endourology
pub_type: 杂志文章,meta分析
doi:10.1089/end.2000.14.671
更新日期:2000-10-01 00:00:00
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pub_type: 杂志文章
doi:10.1089/end.1994.8.401
更新日期:1994-12-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2016-05-01 00:00:00
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pub_type: 杂志文章
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更新日期:2001-04-01 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.2008.0589
更新日期:2009-06-01 00:00:00
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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