Abstract：
PURPOSE:To evaluate the utility of two ipsilateral ureteral stents placed for benign and malignant ureteral obstruction. METHODS:We performed a retrospective analysis of all cases of tandem ureteral stent (TUS) insertion at our institution from July 2007 through January 2013. Student t, Fisher exact, and log-rank test were used. RESULTS:TUS insertion or exchange was performed in 187 cases. There were 66 patients (75 renal units) who underwent successful TUS insertion. Malignant ureteral obstruction (MUO) was the cause for obstruction in 39 renal units (34 patients) vs benign ureteral obstruction (BUO) in 36 renal units (32 patients). Four patients with BUO and 15 patients with MUO underwent stent exchanges at a mean 145 and 128 days, respectively. Serum creatinine levels were stable poststent placement (P=0.4). Degree of hydronephrosis improved (paired t test P<0.03) after stent placement for both benign and malignant cohorts. TUS placement was noted to fail (flank pain with worsening hydronephrosis or increasing creatinine level) in five renal units with MUO (12.8%) and none with BUO. Stent failure (either conventional or TUS) suggested worsening survival in those with MUO. Median survival for those with MUO and a history of stent failure (10 of 14 died, 71%) was 66 days compared with 432 days for those without a history of stent failure (8 of 20 died, 40%) (log-rank test P=0.007). CONCLUSION:Our experience with the TUS, the largest to date, demonstrated that they are highly successful in both benign and malignant causes of obstruction, comparing favorably with metallic ureteral stents. Stent failure may be predictive for shorter survival.
journal_name
J Endouroljournal_title
Journal of endourologyauthors
Elsamra SE,Motato H,Moreira DM,Waingankar N,Friedlander JI,Weiss G,Smith AD,Okeke Zdoi
10.1089/end.2013.0281subject
Has Abstractpub_date
2013-10-01 00:00:00pages
1297-302issue
10eissn
0892-7790issn
1557-900Xjournal_volume
27pub_type
杂志文章abstract：:Caliceal diverticulum management has been performed using various modalities, including ureteroscopy, percutaneous treatment, and laparoscopy. We present our experience with laparoscopic management of caliceal diverticulum in two patients with large caliceal diverticulum and a history of failed open surgery because of...
journal_title：Journal of endourology
pub_type： 杂志文章,评审
doi：10.1089/end.2012.0526
更新日期：2013-05-01 00:00:00
abstract：BACKGROUND AND PURPOSE:Vascular control is an important step in laparoscopic nephrectomy. The various options are titanium clips, Hem-o-lok clips (Weck Closure Systems, Research Triangle Park, NC), T-knot, and stapling devices. We report our experience with the use of Hem-o-lok clips. PATIENTS AND METHODS:From January...
journal_title：Journal of endourology
pub_type： 杂志文章
doi：10.1089/end.2006.20.202
更新日期：2006-03-01 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：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：PURPOSE:This study was designed to determine the outcome and safety of tubeless percutaneous nephrolithotomy (PCNL) in the treatment of renal calculi. PATIENTS AND METHODS:Between November 2005 and March 2006, 48 patients were randomized to either an 18F Re-entry nephrostomy tube (group 1) or a 6F Double-J stent (grou...
journal_title：Journal of endourology
pub_type： 杂志文章,随机对照试验
doi：10.1089/end.2006.0216
更新日期：2007-09-01 00:00:00
abstract：BACKGROUND AND PURPOSE:Current guidelines recommend routine second transurethral resection (TUR) for accurate diagnosis and to prevent understaging of muscle-invasive bladder cancer. We evaluated the diagnostic accuracy of immediate second resection of the tumor bed during initial TUR and its prognostic significance. ...
journal_title：Journal of endourology
pub_type： 杂志文章,随机对照试验
doi：10.1089/end.2011.0576
更新日期：2012-08-01 00:00:00
abstract：BACKGROUND AND PURPOSE:Extended ureteral stricture is a rare complication of renal transplantation. Its management remains challenging. The aim of our study was to report our 15 years of experience with subcutaneous pyelovesical bypass graft (SPBG) in selected renal transplant patients who presented with extended urete...
journal_title：Journal of endourology
pub_type： 杂志文章
doi：10.1089/end.2011.0085
更新日期：2011-08-01 00:00:00
abstract：BACKGROUND AND PURPOSE:Increased body mass index (BMI) has been shown to have inferior perioperative outcomes in patients undergoing laparoscopic partial nephrectomy (LPN). The aim of this study was to determine the differences in perioperative outcomes for patients undergoing LPN in normal, overweight, and obese perso...
journal_title：Journal of endourology
pub_type： 杂志文章
doi：10.1089/end.2014.0725
更新日期：2015-09-01 00:00:00
abstract：:We describe what appears to be the first case of a port-site hernia at the site of insertion of a 10-mm non-bladed trocar, which was discovered 4 days after laparoscopic live-donor nephrectomy. We now close all 10-mm port sites in adults and all 5-mm port sites in children; this can be done easily using the Carter-Tho...
journal_title：Journal of endourology
pub_type： 杂志文章
doi：10.1089/089277903769013649
更新日期：2003-09-01 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
doi：10.1089/end.1998.12.407
更新日期：1998-10-01 00:00:00
abstract：BACKGROUND PURPOSE:Restricture after internal urethrotomy is the major limitation to the long-term success of the procedure. The objective of this study was to evaluate the effect of intraurethral brachytherapy after internal urethrotomy or transurethral scar resection on recurrent urethral stricture. PATIENTS AND MET...
journal_title：Journal of endourology
pub_type： 杂志文章
doi：10.1089/089277901753205906
更新日期：2001-10-01 00:00:00
abstract：OBJECTIVE:Preoperative percutaneous nephrostomy (PCN) has been commonly performed for patients with urinary stones complicated with pyelonephritis or obstructive uropathy; in fact, a considerable number of patients undergo ureteroscopic removal of stone (URS) in the presence of a PCN. We assessed the effectiveness of P...
journal_title：Journal of endourology
pub_type： 杂志文章
doi：10.1089/end.2013.0347
更新日期：2013-10-01 00:00:00
abstract：BACKGROUND AND PURPOSE:Holmium:yttrium-aluminum-garnet (Ho:YAG) laser lithotripsy is the standard lithotrite in ureteroscopy. We investigated the influence of pulse frequency, energy and length on the fragmentation efficiency of Ho:YAG laser lithotripsy in non-floating artificial stones in vitro. MATERIALS AND METHODS...
journal_title：Journal of endourology
pub_type： 杂志文章
doi：10.1089/end.2010.0115
更新日期：2010-07-01 00:00:00
abstract：BACKGROUND AND PURPOSE:A major problem diagnosing bladder cancer using conventional white-light cystoscopy is that flat and tiny papillary neoplasms can be overlooked. Fluorescence cystoscopy is based on the detection of protoporphyrin IX (PpIX)-induced fluorescence in urothelial neoplasms through the topical administr...
journal_title：Journal of endourology
pub_type： 临床试验,杂志文章
doi：10.1089/08927790152596370
更新日期：2001-09-01 00:00:00
abstract：: Objective: To assess the effectiveness of laser lithotripsy in different holmium:yttrium aluminum garnet (Ho-YAG) laser settings with a wide range of energies, frequencies, and power. Materials and Methods: Two types of phantom...
journal_title：Journal of endourology
pub_type： 杂志文章
doi：10.1089/end.2019.0370
更新日期：2019-10-01 00:00:00
abstract：:We report an unusual ureteral foreign body resulting from a complication of pulsed-dye laser lithotripsy: a retained laser fiber fragment. It was removed with two endoscopic procedures without long-term problems. ...
journal_title：Journal of endourology
pub_type： 杂志文章
doi：10.1089/end.1994.8.29
更新日期：1994-02-01 00:00:00
abstract：: Objective: To evaluate the safety of irreversible electroporation (IRE) for renal ablation adjacent to the ureter or bowel. Materials and Methods: Six adult pigs each underwent bilateral IRE of the kidney. To simulate adjacence...
journal_title：Journal of endourology
pub_type： 杂志文章
doi：10.1089/end.2020.0856
更新日期：2020-12-17 00:00:00
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 uret...
journal_title：Journal of endourology
pub_type： 杂志文章
doi：10.1089/end.2008.0048
更新日期：2008-06-01 00:00:00
abstract：BACKGROUND AND PURPOSE:Ascertaining the optimal depth of dilator progression is a crucial factor during tract dilation in percutaneous nephrolithotomy. Dilation is generally guided under fluoroscopy, ultrasonography, or combination of both techniques, and it is still difficult to prevent overdilation causing perforatio...
journal_title：Journal of endourology
pub_type： 杂志文章
doi：10.1089/end.2012.0710
更新日期：2013-07-01 00:00:00
abstract：PURPOSE:We evaluated the collagen content and differentiation of the ureteropelvic junction (UPJ) of patients who underwent Anderson-Hynes dismembered pyeloplasty after failure of antegrade endopyelotomy. MATERIALS AND METHODS:A total of 12 UPJ obstructions were examined more than 12 months after endopyelotomy with bo...
journal_title：Journal of endourology
pub_type： 杂志文章
doi：10.1089/end.2006.9996
更新日期：2007-01-01 00:00:00
abstract：BACKGROUND AND PURPOSE:The efficacy of computed tomography (CT) in detailing upper urinary tract calculi is well established. There is no established acceptable annual recommended limit for medical exposure, yet the global accepted upper limit for occupational radiation exposure is <50 millisieverts (mSv) in any one ye...
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
abstract：INTRODUCTION:Morcellation of the adenoma after laser enucleation of the prostate (LEP) is both time-consuming and prone to complications. We have designed a novel polyethylene sack (ProSac) to improve the morcellation process following LEP. Both silicone and cadaver models were utilized to evaluate the safety and effic...
journal_title：Journal of endourology
pub_type： 杂志文章
doi：10.1089/end.2018.0618
更新日期：2018-12-01 00:00:00
abstract：:Lasertripsy of upper urinary tract calculi after unsuccessful extracorporeal lithotripsy (SWL) or ureteroscopy (Group 1; N = 26 patients, 36 calculi) was compared with primary lasertripsy (Group 2; N = 56 patients, 79 calculi). Access to calculi was achieved by a Candela miniscope or flexible ureteroscope, and laser f...
journal_title：Journal of endourology
pub_type： 杂志文章
doi：10.1089/end.1993.7.473
更新日期：1993-12-01 00:00:00
abstract：OBJECTIVE:To assess the "body mass index" (BMI) (weight and length) of 12 flexible ureteroscopes (digital and fiber optic) along with the light cables and camera heads, to make the best use of our instruments. MATERIALS AND METHODS:Twelve different brand-new flexible ureteroscopes from four different manufacturers, al...
journal_title：Journal of endourology
pub_type： 杂志文章
doi：10.1089/end.2017.0438
更新日期：2017-10-01 00:00:00
abstract：OBJECTIVE:The aim of our study was to evaluate if there is any advantage of three-dimensional helical computed tomography (3D-HCT) over intravenous urogram (IVU) in the morphometric and morphological analysis of lower pole spatial anatomy of the kidney. PATIENTS AND METHODS:We analyzed 52 renal collecting systems in 3...
journal_title：Journal of endourology
pub_type： 临床试验,杂志文章
doi：10.1089/end.2009.0262
更新日期：2009-12-01 00:00:00
abstract：:Chronic prostatitis and prostatodynia are troublesome disorders that are not responsive to any kind of treatment. Patients with treatment-resistant chronic nonbacterial prostatitis (n = 61) or prostatodynia (n = 17) for longer than 3 years underwent a single 1-hour session of transurethral microwave thermotherapy (TUM...
journal_title：Journal of endourology
pub_type： 杂志文章
doi：10.1089/end.1994.8.61
更新日期：1994-02-01 00:00:00
abstract：: Background: Holmium laser enucleation of the prostate (HoLEP) is a highly effective procedure for benign prostatic hyperplasia that is size independent and has been recommended for patients necessitating antiplatelet (AP) and anticoagulant (AC) medications. Although HoLEP ...
journal_title：Journal of endourology
pub_type： 杂志文章
doi：10.1089/end.2020.0886
更新日期：2021-01-06 00:00:00
abstract：BACKGROUND AND PURPOSE:Patients who are undergoing laparoscopic ablative therapy (LAT) are often older with more comorbidities in comparison with patients who are undergoing laparoscopic partial nephrectomy (LPN). A matched control study was performed to compare the surgical and functional outcomes of LPN and LAT. PAT...
journal_title：Journal of endourology
pub_type： 杂志文章
doi：10.1089/end.2011.0087
更新日期：2011-12-01 00:00:00
abstract：PURPOSE:The purpose of this study was to assess the extent of the increased intracranial pressure (ICP) resulting from CO2 pneumoperitoneum and steep Trendelenburg positioning using ultrasonographic measurement of optic nerve sheath diameter (ONSD) in patients undergoing robot-assisted laparoscopic radical prostatectom...
journal_title：Journal of endourology
pub_type： 杂志文章
doi：10.1089/end.2014.0019
更新日期：2014-07-01 00:00:00
abstract：:Severe urethral stricture disease as an isolated entity can be a management dilemma. In the patient described here, this problem was associated with prior external-beam radiation and cryosurgical ablation of the prostate, and a functional artificial urethral sphincter (AUS) had been placed. An attempt to relieve parti...
journal_title：Journal of endourology
pub_type： 杂志文章
doi：10.1089/end.1999.13.585
更新日期：1999-10-01 00:00:00
