Abstract:
:Ureteral stents and nephrostomy tubes have been used extensively in urology. Attendant to their use are their associated morbidities, such as pain, infection, and encrustation. We review the literature on the subject of the encrusted stents and drainage catheters, discuss the risk factors for encrustation, and describe the endourologic evaluation and management of these encrusted and retained urinary drainage devices. A variety of factors contribute to the rate at which this process occurs, including the material of the stent or catheter, urine composition, and duration of use. The risk of stent encrustation is increased in patients with a history of urolithiasis and with progressively longer indwelling times. Novel stent designs incorporating antimicrobial eluting stents and stents with enzymes to degrade urinary oxalate have shown promise in vitro to minimize stent morbidity. Imaging plays a pivotal role in determining the appropriate surgical management of the encrusted and retained stent. In cases in which encrustation is minimal, extracorporeal shock wave lithotripsy has been used with high success rate. Calcifications along the ureteral component of the stent can be treated with retrograde ureteroscopy and laser lithotripsy while the percutaneous route is the preferred primary approach when stone size is greater than 2 cm and/or if there is associated significant encrustation on the proximal ureteral end of the stent. It is not unusual to need multiple sessions to successfully render the patient stent and stone free, depending on which modalities are used. A computerized tracking system for patients with indwelling ureteral stents has been advocated to reduce the number of "forgotten" stents. Finally, it is of paramount importance that the treating urologist communicates clearly to the patient the presence of any internal urologic stents, the temporary intent of their use, risks with prolonged indwelling times, and the need for appropriate follow-up to avoid complications of encrustation.
journal_name
J Endouroljournal_title
Journal of endourologyauthors
Vanderbrink BA,Rastinehad AR,Ost MC,Smith ADdoi
10.1089/end.2006.0382subject
Has Abstractpub_date
2008-05-01 00:00:00pages
905-12issue
5eissn
0892-7790issn
1557-900Xjournal_volume
22pub_type
杂志文章,评审abstract:PURPOSE:To evaluate the suitability of a bioabsorbable stent as a partial internal catheter after percutaneous endopyelotomy in ureteropelvic junction (UPJ) obstruction therapy. PATIENT AND METHODS:The material for the helical spiral stents was a copolymer of polylactide and glycolide (PLGA; L:G ratio 80/20). The self...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/089277902760102785
更新日期:2002-06-01 00:00:00
abstract:: Introduction and Objective: Despite the adoption of robotic donor nephrectomy, the steep learning curve of robotic recipient transplantation has hindered the implementation of a complete robot-assisted kidney transplantation (RAKT). We sought to develop a high-fidelity per...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2020.0441
更新日期:2020-10-01 00:00:00
abstract:PURPOSE:To assess factors that affect prostate biopsy results following salvage whole gland cryoablation. PATIENTS AND METHODS:One hundred seventy-four patients underwent prostate biopsy following salvage whole gland cryoablation of the prostate in the Cryo-OnLine Database registry. Wilcoxon rank-sum and χ2 tests and ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2016.0715
更新日期:2017-05-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Although ultrasonography-guided percutaneous nephrostomy is relatively safe, a number of factors make it challenging for inexperienced operators. A computerized needle navigation technique using tracked ultrasonography snapshots was investigated to determine whether performance of percutaneous ne...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2014.0011
更新日期:2014-09-01 00:00:00
abstract:INTRODUCTION AND OBJECTIVES:There is a need to improve prescreening determination of prostate cancer to better select patients who need biopsy. Such a strategy properly implemented, will decrease the number of negative biopsies for prostate cancer and in turn better balance the risks and morbidity for patients recommen...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2013.0383
更新日期:2014-03-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Ablation by cold (cryoablation) or radiofrequency energy (RFA), has been popularized for the treatment of small renal tumors. Regrettably, there currently is no reliable method of radiologically monitoring the propagation of RF lesions in real time. Ultrasonography enhanced by gas-filled microbub...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2005.19.579
更新日期:2005-06-01 00:00:00
abstract:PURPOSE:To evaluate the efficacy and safety of retroperitoneal laparoscopic pyelolithotomy (RLP) versus percutaneous nephrolithotomy (PCNL) for large renal pelvic calculi using a randomized controlled trial. MATERIALS AND METHODS:Patients with large renal pelvic calculi were prospectively randomized using matched-pair...
journal_title:Journal of endourology
pub_type: 杂志文章,随机对照试验
doi:10.1089/end.2014.0064
更新日期:2014-08-01 00:00:00
abstract:BACKGROUND AND PURPOSE:To compare urinary stone size as measured by abdominal plain radiography (AXR) with stone size as measured by noncontrast three-dimensional spiral CT in patients with acute renal colic. PATIENTS AND METHODS:Patients presenting to the emergency room of a single institution with urinary stones tha...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/089277903770802245
更新日期:2003-11-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Nephrostomy tract dilation is one of the important steps in percutaneous renal surgery. We present our experiences with using Amplatz and metal telescopic dilators (Alken) to create a percutaneous tract and compare the advantages and risk factors of both procedures. PATIENTS AND METHODS:We retro...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2011.0291
更新日期:2012-06-01 00:00:00
abstract:PURPOSE:To assess the current indications for ureteroscopy (URS) treatment, outcome in terms of stone-free rate, and intra- and postoperative complications using the modified Clavien grading system. PATIENTS AND METHODS:The Clinical Research Office of the Endourological Society collected prospective data as part of th...
journal_title:Journal of endourology
pub_type: 杂志文章,多中心研究
doi:10.1089/end.2013.0436
更新日期:2014-02-01 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:INTRODUCTION:Drugs and their metabolites are known factors in 1% to 2% of all kidney stones. Certain antiepileptic drugs are known to cause stone formation. Phenytoin is used as a first line antiepileptic therapy for many seizure disorders. We present what we believe to be the first report of a phenytoin metabolite uri...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2007.0410
更新日期:2008-08-01 00:00:00
abstract::Bisphosphonates bind renal calculi and inhibit calcium oxalate crystal growth in vitro. We evaluated their ability to inhibit calcium oxalate urolithiasis in a lithogenic rat model. Male Sprague-Dawley rats (four groups, eight rats each) were fed 1.0% ethylene glycol in their drinking water for 6 weeks. All rats had i...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1997.11.1
更新日期:1997-02-01 00:00:00
abstract::The tissue effects of a laser are responsible for the therapeutic value as well as the potential for complications. Within certain constraints, the type and depth of energy effect can be controlled by the selection of the wavelength as well as of appropriate energy parameters. In a clinical endoscopic setting, however...
journal_title:Journal of endourology
pub_type: 杂志文章,评审
doi:10.1089/end.1993.7.389
更新日期:1993-10-01 00:00:00
abstract:PURPOSE:The preliminary results of laparoscopic radical cystectomy in 85 patients are presented in this study. The functional and oncologic outcomes of this procedure in these patients are discussed. PATIENTS AND METHODS:Between December 2002 and May 2006, we performed 85 laparoscopic radical cystectomies with orthoto...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2007.0298
更新日期:2008-05-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Surgical outcomes depend on patient and disease-related factors, as well as the technical skill of the surgeon. Various distractions in the operating room (OR) environment have been shown to negatively impact a surgeon's performance. A survey was conducted with the objective to evaluate and chara...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2012.0704
更新日期:2013-09-01 00:00:00
abstract:INTRODUCTION:Radical prostatectomy undoubtedly causes inflammatory damage to surrounding neuromuscular tissues (i.e., bladder, urethra, and nerves) that may contribute to urinary incontinence. We report the use of local hypothermia during robot-assisted laparoscopic prostatectomy to attenuate this injury. METHODS:Regi...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/end.2009.0411
更新日期:2009-09-01 00:00:00
abstract:PURPOSE:To evaluate the ability of heparin coating to inhibit Double J stent encrustation and compare it with the classic polyurethane Double J stent. PATIENTS AND METHODS:The study involved five patients with bilateral obstructions, who required bilateral ureteral Double J stent placement. Every patient received a he...
journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
doi:10.1089/end.2007.0218
更新日期:2008-03-01 00:00:00
abstract:: Introduction: To compare short- and midterm outcomes of the first 55 patients undergoing robot-assisted kidney transplant (RAKT) with patients undergoing open kidney transplant (OKT) during the same period in a tertiary care hospital. Materials and...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2020.0213
更新日期:2020-09-01 00:00:00
abstract:PURPOSE:To assess the long-term survival and prognostic factors in patients with renal-cell carcinoma (RCC) who were treated with radiofrequency ablation (RFA). PATIENTS AND METHODS:A retrospective review of the records of all patients who underwent RFA of biopsy-proven RCC from February 2006 to December 2010 was perf...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2015.0454
更新日期:2016-01-01 00:00:00
abstract::Standard laparoscopic surgery requires maintenance of the working cavity by continual carbon dioxide insufflation and exaggerated Trendelenburg positioning. Both cardiopulmonary and metabolic adverse effects may result from these maneuvers, which may be avoided by a gasless approach to laparoscopic surgery. We investi...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1995.9.483
更新日期:1995-12-01 00:00:00
abstract:OBJECTIVE:To assess if the presence of a lower pole stone (LPS) decreases the stone-free (SF) rate following retrograde intrarenal surgery (RIRS). The second purpose was to assess the result of RIRS for LPS and to identify predictors of SF status. PATIENTS AND METHODS:We retrospectively analyzed 205 procedures in 162 ...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2013.0515
更新日期:2014-02-01 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:BACKGROUND AND PURPOSE:We present the role of the transportal technique of laparoscopy-assisted surgeries.This report highlights the advantages of transportal technique over pure laparoscopic surgeries and laparoscopy-assisted surgeries. PATIENTS AND METHODS:In the last 3 years, we have adopted this approach for six p...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2008.0209
更新日期:2008-12-01 00:00:00
abstract::The preliminary experience with 64 patients who have undergone HoLEP combined with intravesical morcellation is presented. The mean preoperative prostate volume was 75.3 cc. The mean laser time was 46.9 minutes and the morcellator time a further 10.5 minutes. A mean total of 35.5 g of tissue was obtained, and 93% of t...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1998.12.457
更新日期:1998-10-01 00:00:00
abstract:BACKGROUND AND PURPOSE:At present, open retroperitoneal lymph node dissection (RPLND) remains the preferred approach at many high-volume centers for the surgical treatment of patients with low-stage testis cancer. Despite the potential advantages of a minimally invasive approach, including improved cosmesis and shorter...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2010.0596
更新日期:2011-11-01 00:00:00
abstract::Five patients with major (Grade IV) renal trauma required ureteral stent placement to facilitate urinary drainage. Three of these patients had stents placed for recurrent gross hematuria with flank pain. All three had obstructing blood clots present at the time of stent placement. The fourth patient had a stent placed...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.1998.12.545
更新日期:1998-12-01 00:00:00
abstract:: Purpose: Several case series have demonstrated the safety and feasibility of outpatient robot-assisted radical prostatectomy (RARP) in well-selected patients; however, the patient perspective of this practice has not been well explored. In this study, we explored patients'...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2019.0796
更新日期:2020-04-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Kidney stone disease is rare in the South African black (B) population and more prevalent in the white (W) population. Genetic studies have not previously examined this anomaly. The AGT Pro11Leu polymorphism in the alanine:glyoxylate aminotransferase (AGT) enzyme has been suggested as possibly pl...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2013.0617
更新日期:2014-05-01 00:00:00
abstract:INTRODUCTION:A "Negative" ureteroscopy (URS) is defined as a URS in which no stone is found during the procedure. It may occur when the stone has already been passed spontaneously or when it is located outside the collecting system. The aim of the study was to outline risk factors for Negative-URS. MATERIALS AND METHO...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2018.0291
更新日期:2018-09-12 00:00:00