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Urology 2019 Jan 15. Epub 2019 Jan 15.

Department of Urology, George Washington University Medical School, (GWUH), Washington D.C.

Objective: To determine the percentage of emergently placed nephrostomy tubes (NT) that were subsequently deemed usable for definitive percutaneous nephrolithotomy (PCNL) or percutaneous antegrade ureteroscopy in patients presenting with nephrolithiasis.

Methods: A multi-institutional retrospective database review was completed to identify patients who underwent emergent NT placement and then subsequent PCNL or percutaneous antegrade ureteroscopy. Demographic, operative and post-operative data were collected. Read More

Aktuelle Urol 2019 Jan 17. Epub 2019 Jan 17.

Department of Urology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg.

JAMA Netw Open 2018 Dec 7;1(8):e186248. Epub 2018 Dec 7.

Iowa City VA Health Care System, Iowa City.

Importance: The American Urological Association guidelines recommend 24 or fewer hours of antimicrobial prophylaxis for most urologic procedures. Continuing antimicrobial therapy beyond 24 hours may carry more risks than advantages.

Objectives: To assess guideline discordance of antimicrobial prophylaxis for common urologic endoscopic procedures, and to identify opportunities for improving antimicrobial prescribing through future stewardship interventions. Read More

Biomed Res Int 2018 2;2018:9253952. Epub 2018 Dec 2.

Department of Urology, Wakayama Medical University, 811-1 Kimiidera, Wakayama 641-0012, Japan.

Kidney stones are a major public health concern with continuously increasing worldwide prevalence. Shock wave lithotripsy (SWL) is the first line treatment choice for upper urinary tract calculi with ureteroscopy and has advantages of safety and noninvasiveness, but the treatment success rate of SWL is lower than that of other therapies. It is therefore important to identify predictive factors for SWL outcome and select a suitable treatment choice for patients with upper urinary tract calculi. Read More

Int Braz J Urol 2019 Jan 5;45. Epub 2019 Jan 5.

Department of Urology, Xiangya Hospital, Central South University, Changsha, China.

Purpose: To systematically assess the effectiveness and safety of retrograde flexible ureteroscopy (FURS) versus percutaneous nephrolithotomy (PCNL) in treating intermediate-size renal stones (2-3cm).

Materials And Methods: PubMed, Ovid MEDLINE, Web of Science, Cochrane Central Register of Controlled Trials (CENTRAL) and EMBASE were researched to identify relevant studies up to May 2018. Article selection was performed through the search strategy based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses criteria. Read More

J Endourol 2019 Jan 8. Epub 2019 Jan 8.

Vanderbilt University Medical Center, 12328, Urologic Surgery , A-1302 Medical Center North , Nashville, Tennessee, United States , 37232 ;

Objective: Kidney stone formers are at risk for opioid dependence. The aim of this study is to describe opiate exposure and determine predictors of prolonged opiate use among kidney stone formers after surgery.

Materials And Methods: A retrospective review was performed among patients who underwent ureteroscopy for upper tract stone disease. Read More

Urologe A 2019 Jan;58(1):14-21

Klinik für Urologie und Kinderurologie, Universitätsklinikum Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Deutschland.

Background: The diagnostic accuracy of ureteroscopic biopsies in the upper urinary tract is limited by technical difficulties during extraction and small sample size.

Objectives: To evaluate the impact of different techniques and instruments on the histopathologic quality and diagnostic yield of extracted samples as well as the predictive value of clinical grading and staging on final pathologic stage at radical nephroureterectomy.

Materials And Methods: For this systematic review, we searched PubMed and Embase databases for original publications and meeting abstracts according to the PRISMA guidelines. Read More

Biomed Opt Express 2018 Sep 30;9(9):4552-4568. Epub 2018 Aug 30.

Department of Physics and Optical Science, University of North Carolina at Charlotte, NC 28223, USA.

The flashlamp-pumped, solid-state, pulsed, mid-infrared, holmium:YAG laser (λ = 2120 nm) has been the clinical gold standard laser for lithotripsy for over the past two decades. However, while the holmium laser is the dominant laser technology in ureteroscopy because it efficiently ablates all urinary stone types, this mature laser technology has several fundamental limitations. Alternative, mid-IR laser technologies, including a thulium fiber laser (λ = 1908 and 1940 nm), a thulium:YAG laser (λ = 2010 nm), and an erbium:YAG laser (λ = 2940 nm) have also been explored for lithotripsy. Read More

F1000Res 2018 18;7. Epub 2018 Dec 18.

Department of Urology, Mayo Clinic in Arizona, Phoenix, AZ, 85054, USA.

Modern robotics is an advanced minimally invasive technology with the advantages of wristed capability, three-dimensional optics, and tremor filtration compared with conventional laparoscopy. Urologists have been early adopters of robotic surgical technology: robotics have been used in urologic oncology for more than 20 years and there has been an increasing trend for utilization in benign urologic pathology in the last couple of years. The continuing development and interest in robotics are aimed at surgical efficiency as well as patient outcomes. Read More

J Endourol 2019 Jan 5. Epub 2019 Jan 5.

University of British Columbia, Urologic Sciences , Level 6 , 2775 Laurel st. , Level 6 - 2775 Laurel St , Vancouver, British Columbia, Canada , V5Z 1M9.

Flexible ureteroscopy has become an important tool in the urologist's armamentarium. Until recently, reusable ureteroscopes were the only tools available to perform ureteroscopy. However, in recent years, single-use flexible and semi-rigid ureteroscopes have been developed as an alternative to reusable scopes. Read More

J Endourol 2019 Jan 5. Epub 2019 Jan 5.

Loyola University Medical Center, Urology, Maywood, Illinois, United States ;

Introduction: Patients admitted to the hospital with an acute, non-infected episode of urolithiasis are candidates for medical expulsive therapy, ureteral stent placement or upfront ureteroscopy. We sought to assess socioeconomic factors influencing treatment decisions in managing urolithiasis and to determine differences in outcomes based on treatment modality.

Materials And Methods: The Healthcare Cost and Utilization Project State Inpatient Database, State Ambulatory Surgery and Services Database, and State Emergency Department Database for California from 2007-2011 and Florida from 2009-2014 were utilized. Read More

Case Rep Urol 2018 25;2018:2303492. Epub 2018 Nov 25.

Division of Urology, Department of Surgery, University of Texas Medical Branch, Galveston, Texas, USA.

A urinary tract infection (UTI) and sepsis secondary to an obstructing stone are one of the few true urological emergencies. The accepted management of infected ureteral stones includes emergent decompression of the collecting system as well as antibiotic therapy. Despite this, no consensus guidelines clarify the optimal time to undergo definitive stone management following decompression. Read More

J Endourol 2018 Dec 26. Epub 2018 Dec 26.

University of Michigan, Urology , 3879 Taubman Center , 1500 East Medical Center Drive , Ann Arbor, Michigan, United States , 48109-5330.

Purpose: Holmium laser lithotripsy is a common modality used to fragment urinary stones during ureteroscopy. Laser energy deposited during activation produces heat and potentially causes thermal bioeffects. We aimed to characterize laser-induced heating through a computational simulation. Read More

J Endourol 2018 Dec 26. Epub 2018 Dec 26.

University of Michigan, Urology, Ann Arbor, Michigan, United States ;

Introduction: The Moses technology for the Ho:YAG laser introduces a pulse-shape modulation that optimizes energy delivery through water and can be utilized for lithotripsy at a distance from the target. In light of this advance we undertook an in vitro study to assess the effect of fiber tip to stone distance on fragmentation incorporating the use of a variety of pulse modes.

Methods: Experiments were conducted with a 3D positioning system, a 30 mm flat plate BegoStone, and a 230 µm core laser fiber connected to a 120W holmium laser utilizing short pulse (SP), long pulse (LP), Moses Contact (MC), and Moses Distance (MD) modes. Read More

Urologiia 2018 Dec(5):175-181

European Medical Center, Moscow, Russia.

Retrograde intrarenal surgery (RIRS) is a rapidly developing field of endoscopic management of urolithiasis. Previously considered an additional technique in patients with lower calyx stones that do not respond to extracorporeal shock wave lithotripsy, now the RIRS along with percutaneous surgery is gaining a leading position in the management of kidney stones. Currently, it is recommended as the main surgical modality for treating stones less than 2 cm, especially in cases where extracorporeal shock wave lithotripsy is not feasible or not desirable. Read More

Int J Urol 2018 Dec 21. Epub 2018 Dec 21.

S. H. Ho Urology Center, Department of Surgery, The Chinese University of Hong Kong, Shatin, Hong Kong.

Urinary stone disease, or urolithiasis, is a very common disease with increasing prevalence and incidence. With the advancement of endoscopic techniques, the treatment outcomes of ureteroscopy (or transureteral lithotripsy) and percutaneous nephrolithotomy are continuously improving. In recent years, there have been many new developments in the field, including new endoscopy design, more effective auxiliary tools, improvement in treatment protocols, introduction of robotic technology, combining both ureteroscopy and percutaneous nephrolithotomy (endoscopic combined intrarenal surgery or transureteral lithotripsy-assisted percutaneous nephrolithotomy), improvement in laser technology, and so on. Read More

J Endourol 2018 Dec 20. Epub 2018 Dec 20.

Geisinger Health System, 2780, Urology , 100 N. Academy Avenue , Danville, Pennsylvania, United States , 17822-2101 ;

Introduction: Infectious complications following ureteroscopy for stone disease lead to emergency department visits, hospitalizations, and other costly healthcare utilization. The objective of our study was to identify risk factors for post-operative fever (POF) and systemic inflammatory response syndrome (SIRS) after ureteroscopy (URS) for stone disease.

Materials & Methods:   We performed a retrospective cohort study on 2746 patients who underwent 3298 URS for stone disease at Geisinger from 2008-2016. Read More

Minerva Urol Nefrol 2018 Dec;70(6):543-545

Division of Urology, VCU Health, Richmond, VA, USA.

World J Urol 2018 Dec 17. Epub 2018 Dec 17.

Department of Urology, Fundació Puigvert, Autonomous University of Barcelona, 08035, Barcelona, Spain.

Introduction: A correct characterization of upper tract urothelial carcinoma (UTUC) lesions is fundamental to appropriately select patients suitable for endoscopic management. We analyzed the diagnostic yield of three different biopsy tools for the histology evaluation of the UTUC. Furthermore, the concordance between biopsy grading and final UTUC pathology results at specimen (i. Read More

Curr Opin Urol 2019 Mar;29(2):108-112

Klinik und Poliklinik für Urologie, Universitätsklinikum Köln, Köln, Germany.

Purpose Of Review: The present review identifies the latest scientific investigations within the fields of fragmenting and dusting to discuss optimizing treatment. In addition, new settings such as 'popcorning' are scrutinized carefully.

Recent Findings: During the past years, endoscopic techniques have continuously developed and changed the management of the treatment of kidney stones using ureteroscopy (URS). Read More

Aktuelle Urol 2018 Dec 12. Epub 2018 Dec 12.

Department of Urology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg.

Flexible ureteroscopy (fURS) has become a success story in urology. Since its implementation into the treatment of urolithiasis, fURS has demonstrated excellent clinical performance and safety. In recent years, the spread of disposable ureteroscopes has shaped the field of endoscopic stone treatment. Read More

Arab J Urol 2018 Dec 27;16(4):435-440. Epub 2018 Jun 27.

Department of Surgery, Division of Urology, Baylor Scott and White Health, Temple, TX, USA.

Abstract Objectives: To examine the safety and effectiveness of the use of a stent with a string attached after ureteroscopy (URS) for self-removal of the stent by the patient.

Patients And Methods: After Institutional Review Board approval, a retrospective chart review was performed concerning patients who underwent URS and received an indwelling stent with or without a string attached to the stent (94 vs 349, respectively). Amongst the string group patients received a single- or a double-arm-stringed stent (31 vs 63, respectively). Read More

Arab J Urol 2018 Dec 21;16(4):429-434. Epub 2018 Jun 21.

Department of Urology, Recep Tayyip Erdoğan University School of Medicine, Rize, Turkey.

Objectives: To compare the 7.5-9.5F ureteroscope (URS) with the 4. Read More

Arab J Urol 2018 Dec 26;16(4):422-428. Epub 2018 Jul 26.

Department of Urology, Benha Faculty of Medicine, Benha University, Benha, Egypt.

Objective: To evaluate the efficacy of silodosin therapy, as a new α-adrenergic receptor (α-AR) blocker, on the success rate of semi-rigid ureteroscopy (URS) for the management of large distal ureteric stones.

Patients And Methods: This prospective study recruited 127 adult patients with single distal ureteric stone of ≥1 cm. The patients were randomly allocated to two groups: the first group included 62 patients who received silodosin (8 mg) for 10 days before URS (Silodosin group), whilst the second group included 65 patients who received placebo, in the form of multivitamins, for 10 days before URS (Placebo group). Read More

Actas Urol Esp 2018 Dec 6. Epub 2018 Dec 6.

Departamento de Urología, Hospital Universitario Ramón y Cajal, Madrid, España.

Context And Objectives: The first-line treatment for >2cm lithiasis is percutaneous nephrolithotomy (PNL), leaving flexible ureteroscopy (fURS) as a second option. In the present review, the stone-free rate and the complications of both techniques were evaluated in the treatment of 2-3cm stones.

Material And Methods: Systematic review of studies that compared both techniques. Read More

J Perianesth Nurs 2018 Dec 5. Epub 2018 Dec 5.

Purpose: Postoperative ureteroscopy patients can develop bladder spasms, complaints of pain, and the urgent need to void during emergence from anesthesia. Discomfort leads to patient agitation, resulting in a risk to patient safety. The purpose of this study was to determine the effectiveness of a preemptive preoperative belladonna and opium (B + O) suppository on postoperative bladder comfort, narcotic requirements, and length of stay of ureteroscopy patients. Read More

Kaohsiung J Med Sci 2018 Dec 21;34(12):695-699. Epub 2018 Jul 21.

Department of Urology, Haseki Training and Research Hospital, Istanbul, Turkey.

The effects of ureteral stent diameters on ureteral stent-related symptoms were evaluated by using Turkish-validated Ureteral Stent Related Symptoms Questionnaire (USSQ). Datas on 126 patients underwent uncomplicated flexible ureterorenoscopy and 62 patients underwent uncomplicated semirigid ureteroscopy surgery without stent insertion (group 3) were collected. Patients were randomized preoperatively in a double-blind fashion to 4. Read More

J Endourol 2018 Dec 10. Epub 2018 Dec 10.

Glickman urological and kidney institute. Cleveland Clinic foundation., Cleveland, Ohio, United States ;

Objective: To compare two commercially available UAS's in their ability to access the renal collecting system and assess ureteral wall trauma using a prospective, randomized trial.

Patients And Methods: 95 patients undergoing ureteroscopy for renal stones were randomized to Cook Flexor™ or Boston Scientific Navigator HD™ 12/14Fr sheaths. If the initial sheath failed to advance, the alternate sheath was attempted. Read More

Aktuelle Urol 2018 Dec 6;49(6):488-499. Epub 2018 Dec 6.

Urologische Universitätsklinik Mannheim, Klinik für Urologie und Kinderurologie, Mannheim.

The introduction of robotics led to a decrease in the importance of classical laparoscopy. Nevertheless laparoscopy and retroperitoneoscopy underwent significant technological improvements during the last decade, including introduction of 4k Ultra HD video technology, 3D-HD-videosystems, minaturised instruments, advanced sealing devices, instruments with 7 degrees of freedom, and ergonomic platforms Ethos Chair. The monopoly of robotic surgical devices will end in 2019, because key patents of Intuitive Surgical will expire. Read More

Int Braz J Urol 2018 Oct 30;44. Epub 2018 Oct 30.

Departamento de Urologia de Centro Hospitalar do Porto, Instituto de Ciências Biomédicas de Abel Salazar, Porto, Portugal.

Introduction: During the last years there has been an effort in miniaturizing the endoscopic devices. The video presents an alternative for the management of distal ureteral stone, using a ureteral access of 4.85 Fr and 27 cm of length, previously described as micro-ureteroscopy. Read More

Front Pediatr 2018 16;6:353. Epub 2018 Nov 16.

Scott Department of Urology, Baylor College of Medicine, Houston, TX, United States.

While small non-obstructive stones in the adult population are usually observed with minimal follow-up, the same guidelines for management in the pediatric population have not been well-studied. We evaluate the clinical outcomes of small non-obstructing kidney stones in the pediatric population to better define the natural history of the disease. In this IRB-approved retrospective study, patients with a diagnosis of kidney stones from January 2011 to March 2017 were identified using ICD9 and ICD10 codes. Read More

Ulus Travma Acil Cerrahi Derg 2018 Nov;24(6):514-520

Sorbonne Université, GRC n°20 LITHIASE RENALE, AP-HP, Hôpital Tenon, Paris-France.

Background: Ureteral access sheaths (UASs) are commonly used in retrograde intra-renal surgery (RIRS). Despite their advantages, there is a risk of ureteral trauma during their placement and subsequent stricture following surgery. The aim of this study was to evaluate the UAS force of insertion (FOI) during placement and its impact on ureteral trauma. Read More

J Endourol 2019 Jan 7. Epub 2019 Jan 7.

2 Department of Urology, University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom.

Purpose: The aim of this study was to retrospectively analyze outcomes of flexible ureteroscopy and laser fragmentation (FURSL) of renal stones with the use of ureteral access sheath (UAS) in the pediatric population.

Materials And Methods: We retrospectively collected data between January 2011 and January 2018 for patient demographics, stone characteristics, and outcomes in 21 children who underwent FURSL with the use of UAS.

Results: Twenty-one patients (10 boys and 11 girls) with a mean age of 11. Read More

Med Oncol 2018 Nov 29;36(1):10. Epub 2018 Nov 29.

Department of Urology, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9 G4-223, 1105AZ, Amsterdam, The Netherlands.

Kidney-sparing surgery of upper tract urothelial carcinoma (UTUC) requires a stringent follow-up with frequent ureteroscopies. Triage testing could reduce the number of follow-up ureteroscopies and hence minimize the invasiveness of follow-up. The use of urine-based markers for triage seems appealing but should be feasible with selective urine from outpatient cystoscopy to maximize the reduction of invasiveness. Read More

PLoS One 2018 29;13(11):e0208209. Epub 2018 Nov 29.

Department of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America.

Ureteroscopy is an endoscopic kidney stone removal procedure which increases the internal pressure in the renal pelvis, the kidney's urinary collecting system. Elevated renal pelvic pressure may result in systemic absorption of irrigation fluid and urine, which can increase the risk of postoperative fever and sepsis. Urologists have investigated the effects of various surgical parameters on the renal pelvic pressure. Read More

J Endourol 2019 Jan 2. Epub 2019 Jan 2.

1 Department of Urology, Dalhousie University , Halifax, Canada .

Introduction: Simulation-based training (SBT) has become an increasingly popular modality to train novice surgical residents in the face of rapidly increasing innovative surgical techniques across all surgical disciplines. Recent studies have already demonstrated SBT to be effective in helping overcome the learning curve associated with new surgical techniques, especially in junior residents and endoscopic procedures. In addition, it is known that trainees benefit significantly from expert feedback; however, there is a paucity of data looking into the optimal timing of this feedback during SBT. Read More

Adv Clin Exp Med 2018 Nov 28. Epub 2018 Nov 28.

Department of Urology, Affiliated Hospital of Hangzhou Normal University, China.

Background: The topic of whether preoperative Th1/Th2 cells and their related factors have a predictive value for postoperative febrile urinary tract infection (UTI) in patients with ureteral calculi has not been explored.

Objectives: The objective of this study was to investigate the role of preoperative Th1/Th2 cells and related cytokines in the prediction of postoperative febrile UTI after ureteroscopy in patients with ureteral calculi.

Material And Methods: One hundred sixty patients who underwent ureteroscopic pneumatic lithotripsy in the Affiliated Hospital of Hangzhou Normal University (China) were recruited and divided into febrile UTI group (n = 78) and non-UTI group (n = 82). Read More

Urol Int 2018 Nov 27:1-7. Epub 2018 Nov 27.

Department of Urology, St. Elisabeth Hospital, Straubing, Germany.

Background: The Post-Ureteroscopic Lesion Scale (PULS) is a validated, standardised scale that classifies iatrogenic ureteral lesions during ureteroscopy (URS).

Objective: To determine risk factors for the various PULS-grades caused by URS.

Method: We prospectively investigated the independent influence of various risk factors in correlation with PULS-Grade 1+ and 2+ on 307 patients with ureterorenoscopic stone treatment from 14 German urologic departments. Read More

Can Urol Assoc J 2018 Nov 20. Epub 2018 Nov 20.

Department of Surgery, Division of Urology, University of Ottawa, Ottawa, ON, Canada.

Urology 2018 Nov 23. Epub 2018 Nov 23.

Department of Urology, Emory University School of Medicine, Atlanta, GA.

Diaphragmatic herniations of the ureter are a rare occurrence overall, with fewer than 10 cases reported. Obstructing nephrolithiasis in the setting of diaphragmatic ureteral herniation has sparsely been documented. Management options to consider include ureteroscopy and laser lithotripsy to alleviate obstruction in herniated ureters. Read More

Urol Int 2018 Nov 21:1-6. Epub 2018 Nov 21.

Department of Urology, Bagcilar Training and Research Hospital, Bagcilar/Istanbul, Turkey.

Aims: We aimed to evaluate the durability and cost effectiveness of the latest digital flexible ureterescope by comparing it with the conventional fiberoptic one.

Materials And Methods: Data of patients who underwent retrograde intrarenal surgery between January 2013 and December 2014 were collected. Fiberoptic Flex-X2 or digital Cobra vision flexible ureteroscopes were used for the procedures. Read More

BJU Int 2018 Dec;122(6):919-920

Service d'Urologie, AP-HP, Hôpital Tenon, Sorbonne Université, Paris, France.

J Endourol 2019 Jan 31;33(1):9-15. Epub 2018 Dec 31.

1 Department of Urology, UCSF Medical Center, San Francisco, California.

Purpose: To explore regional adoption of ureteroscopy (URS) over extracorporeal shockwave lithotripsy (SWL) in the state of California (CA) and to identify factors associated with this adoption over time.

Materials And Methods: We used the California Office of Statewide Health Planning and Development (OSHPD) public data to identify URS and SWL procedures performed for renal and ureteral stones from 2005 to 2016. The level of analysis was the region wherein each procedure was performed, defined by the 19 CA labor market regions. Read More

J Endourol 2019 Jan 22;33(1):42-49. Epub 2018 Dec 22.

1 Department of Urology, Stanford University School of Medicine , Stanford, California.

Objectives: We sought to validate the use of crowdsourced surgical video assessment in the evaluation of urology residents performing flexible ureteroscopic laser lithotripsy.

Methods: We collected video feeds from 30 intrarenal ureteroscopic laser lithotripsy cases where residents, postgraduate year (PGY) two through six, handled the ureteroscope. The video feeds were annotated to represent overall performance and to contain parts of the procedure being scored. Read More

Urology 2018 Nov 15. Epub 2018 Nov 15.

Division of Endourology, Department of Urology, University of Michigan, Ann Arbor, MI.

Objective: To demonstrate the use of the Moses technology for holmium laser lithotripsy in conjunction with mini-percutaneous nephrolithotomy (PCNL) to treat a lower pole stone. The Moses technology is a pulse modulation method that can reduce stone retropulsion, which may have advantages when used during mini-PCNL.

Methods: A 63-year-old patient with a right-sided 1. Read More

Urology 2018 Nov 15. Epub 2018 Nov 15.

Department of Urologic Surgery, University of California Davis Medical Center, Sacramento, CA.

We present a case of chronic, severe, intermittent hematuria found to be associated with a ureteral to aorto-femoral bypass fistulization. The graft was directly visualized on ureteroscopy and identified as the source of hematuria during exploratory laparotomy. Ureteral fistulization is a rare etiology of hematuria. Read More

BJU Int 2018 Nov 16. Epub 2018 Nov 16.

Department of Urology and Andrology, Kansai Medical University, Osaka, Japan.

Objectives: To evaluate the impact of ureteric stent removal by string vs ureteric stent removal by cystoscope with regard to pain at ureteric stent removal, complications and quality of life, as well as patients' self-rated symptoms, after ureteroscopy (URS) for urolithiasis.

Patients And Methods: Of 328 patients who underwent URS for upper urinary tract stones at our institution, 149 were randomly divided into a ureteric stent removal by string group (string group) and a ureteric stent removal by flexible cystoscope group (cystoscope group), using gender as a stratification factor. We focused on four sites, namely, the upper abdomen, bladder, flank and urethra, to evaluate the most painful site at stent removal. Read More

Medicine (Baltimore) 2018 Nov;97(46):e13177

Department of Urology, The First Hospital of Jilin University, Changchun, China.

Rationale: Inflammatory myofibroblastic tumor (IMT) is a rare soft-tissue neoplasm which has been described in a variety of locations. In the urogenital system, IMT predominantly occurs in the bladder and the kidney. IMT arising from the ureter is exceedingly rare and has been sporadically reported before. Read More

Front Pediatr 2018 31;6:329. Epub 2018 Oct 31.

Department of Pediatric Surgery, University Teaching Hospital of Tours, Gatien de Clocheville Hospital, Tours, France.

We described the initial experience of four referral centers in the treatment of primary obstructive megaureter (POM) in children, by high-pressure balloon dilatation (HPBD) of the ureterovesical junction with double JJ stenting. We managed a retrospective multicenter study to assess its effectiveness in long-term. We reviewed the medical records of all children who underwent HPBD for POM that require surgical treatment from May 2012 to December 2017 in four different institutions. Read More

Urol Int 2018 Nov 14:1-8. Epub 2018 Nov 14.

Department of Gynecology-Obstetrics and Urology, Sapienza University of Rome, Rome, Italy.

Purpose: To evaluate the safety and feasibility of ureteroscopy plus elective double-J stent as an outpatient procedure in an unselected population with regard to the treatment for ureteral calculi and to present a multivariate analysis of factors predict hospitalization.

Materials And Methods: Ureteroscopy was performed as an outpatient procedure on 308 consecutive patients with ureteral stones. Contraindication for day case surgery was the only exclusion criteria from the study. Read More