5,769 results match your criteria Ureteroscopy


[Preoperative double J stent placement in the endoscopic treatment of ureteral and renal Stone: A multicenter, national study.]

Arch Esp Urol 2021 May;74(4):389-396

Oficina de Investigación. Confederación Americana de Urología (CAU). Departamento de Cirugía/Urología. Escuela de Medicina. Universidad del Valle. Cali. Colombia.

Objective: Aim of our study was to evaluate the effectiveness and safety of the preoperative placement of JJ stent compared to not doing in patients undergoing ureteroscopy for ureteral and kidney stone.

Materials And Methods: Prospective, observational, multicenter study. Adult patients, who underwent ureteroscopy treatment for ureteral and kidney stone, were recruited from August 2017 to March 2019, in 23 Argentine institutions. Read More

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Iatrogenic ureterovaginal fistula after laparoscopic hysterectomy: a case report.

Prz Menopauzalny 2021 Apr 11;20(1):48-51. Epub 2021 Mar 11.

Urology Department, Regional Specialized Hospital in Nowa Sól, Poland.

Introduction: The highest risk of intraoperative ureteral trauma is associated with hysterectomy, performed most frequently in postmenopausal women. The overall incidence of ureteral injuries varies in different studies between 0.5% and 10%. Read More

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Using spatial-temporal ensembles of convolutional neural networks for lumen segmentation in ureteroscopy.

Int J Comput Assist Radiol Surg 2021 Apr 28. Epub 2021 Apr 28.

Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy.

Purpose: Ureteroscopy is an efficient endoscopic minimally invasive technique for the diagnosis and treatment of upper tract urothelial carcinoma. During ureteroscopy, the automatic segmentation of the hollow lumen is of primary importance, since it indicates the path that the endoscope should follow. In order to obtain an accurate segmentation of the hollow lumen, this paper presents an automatic method based on convolutional neural networks (CNNs). Read More

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The Impact of Upper Tract Urothelial Carcinoma Diagnostic Modality on Intravesical Recurrence after Radical Nephroureterectomy: A Single Institution Series and Updated meta-Analysis.

J Urol 2021 Apr 28:101097JU0000000000001834. Epub 2021 Apr 28.

Department of Urology, Mayo Clinic, Rochester, Minnesota.

Introduction: Diagnostic ureteroscopic biopsy for upper tract urothelial carcinoma (UTUC) has been hypothesized to increase intravesical recurrence of urothelial carcinoma after radical nephroureterectomy (RNU). Moreover, the impact of ureteroscopy without biopsy or percutaneous biopsy on intravesical recurrence remains unknown. Herein, we compared post-RNU intravesical recurrences across UTUC diagnostic modalities. Read More

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Perinephric Hematoma Associated with Pyelonephritis Following Ureteral Stent Placement for Ureteral Obstruction Causing Hydronephrosis.

Am J Case Rep 2021 Apr 27;22:e931404. Epub 2021 Apr 27.

Department of Internal Medicine, Benefis Health System, Great Falls, MT, USA.

BACKGROUND Perinephric hematomas are rare, especially following ureteral stent placement. Etiologies of perinephric hematomas include post-extracorporeal shockwave lithotripsy, Wunderlich syndrome, and renal cell carcinoma, none of which occurred in our patient, who underwent stent replacement. Subcapsular renal hematoma, rather than a perinephric hematoma, can occur following double-J ureteral stent placement. Read More

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Natural History of Post-treatment Kidney Stone Fragments: A Systematic Review and Meta-Analysis.

J Urol 2021 Apr 27:101097JU0000000000001836. Epub 2021 Apr 27.

Department of Urology, University Hospital Southampton, Southampton, England.

Purpose: To assess the literature around post-treatment asymptomatic residual stone fragments, and to perform a meta-analysis. The main outcomes were intervention rate and disease progression.

Materials And Methods: We searched Ovid Medline, Embase, Cochrane library and Clinicaltrials. Read More

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Opioids and Kidney Stones.

Semin Nephrol 2021 Jan;41(1):19-23

Massachusetts General Hospital, Harvard Medical School, Boston, MA; Harvard Medical School, Boston, MA. Electronic address:

In recent years, the use of opioids in medical practice has come under significant scrutiny. This, in part, is owing to evidence of overprescription and overuse of opioid medications, as well as the unintended consequences and side effects for patients who take these medications. Here, we review the role of opioids and the responsible use of these medications with respect to kidney stone disease and surgical interventions for kidney stones. Read More

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January 2021

Safety and Outcomes of using ureteric access sheath (UAS) for treatment of Paediatric renal stones: Outcomes from 2 tertiary endourology centres.

Urology 2021 Apr 20. Epub 2021 Apr 20.

Professor and Consultant Urological Surgeon, University Hospital Southampton NHS Trust, Southampton, UK. Electronic address:

Objective: To look at the safety and outcomes of using ureteral access sheath (UAS) for paediatric renal stones. The use of UAS is variable in urological practice with very little clinical work on their use in paediatric kidney stone disease.

Patients And Methods: Data was retrospectively collected from two large European tertiary endourology centres for all paediatric patients (≤16 years) with renal stones who underwent flexible ureteroscopy and lasertripsy (FURSL) via UAS. Read More

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Intraoperative and postoperative surgical complications after ureteroscopy (URS), retrograde intrarenal surgery (RIRS) and percutaneous nephrolithotomy (PCNL): a systematic review.

Minerva Urol Nephrol 2021 Apr 22. Epub 2021 Apr 22.

Unit of Oncologic Minimally-Invasive Urology and Andrology, Department of Experimental and Clinical Medicine, Careggi Hospital, University of Florence, Florence, Italy.

Introduction: Retrograde ureteroscopy (URS), intra-renal surgery (RIRS) and percutaneous nephrolithotomy (PCNL) represent routine interventions for the treatment of ureteral and renal stones, although at times associated with serious adverse events. Of note, the evidence on perioperative complications after these procedures remains sparse and controversial. Moreover, there is a lack of standardized reporting of adverse events using uniform systems. Read More

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Atlas of scoring systems, grading tools and nomograms in Endourology: A comprehensive overview from The TOWER Endourological Society research group.

J Endourol 2021 Apr 20. Epub 2021 Apr 20.

University Hospital Southampton NHS Foundation Trust, 7425, Urology, Southampton, Southampton , United Kingdom of Great Britain and Northern Ireland.

Introduction: With an increase in the prevalence of kidney stone disease (KSD), there has been a universal drive to develop reliable and user-friendly tools such as grading systems and predictive nomograms. An atlas of scoring systems, grading tools and nomograms in Endourology is provided in this paper.

Methods: A comprehensive search of world literature was performed to identify nomograms, grading systems and classification tools in endourology related to KSD. Read More

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Significance of albumin to globulin ratio as a predictor of febrile urinary tract infection after ureteroscopic lithotripsy.

Yeungnam Univ J Med 2021 Apr 20. Epub 2021 Apr 20.

Department of Urology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Korea.

Background: We aimed to analyze the effectiveness of albumin to globulin ratio (AGR) in predicting postoperative febrile urinary tract infection (fUTI) after ureteroscopic lithotripsy (URS) and retrograde intrarenal surgery (RIRS).

Methods: From January 2013 to May 2018, 332 patients underwent URS and RIRS. The rate of postoperative fUTI and risk factors for postoperative fUTI were analyzed using logistic regression. Read More

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A rare cause of hydronephrosis: Leiomyoma of the ureter and a literature review.

Urologia 2021 Apr 19:3915603211010463. Epub 2021 Apr 19.

Department of Urology, Medicana International Ankara Hospital, Ankara, Turkey.

Introduction: Leiomyomas of the genitourinary tract are rare and their manifestation in the ureter is even rarer. To our knowledge, only 14 cases of leiomyoma of the ureter have been reported worldwide since 1955, therefore this case will be 15th.

Case Presentation: We present a rare case of primary leiomyoma of the right ureter. Read More

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Does twinkle artifact truly represent a kidney stone on renal ultrasound?

J Pediatr Urol 2021 Mar 30. Epub 2021 Mar 30.

Department of Urology, Nationwide Children's Hospital, Columbus, OH, 43205, USA; Division of Urology, Albany Medical Center, Albany, NY, 12208, USA.

Introduction: Nephrolithiasis is detected on ultrasound by the presence of an echogenic focus, posterior acoustic shadowing and/or twinkle artifact (TA). TA has been shown to be highly predictive of nephrolithiasis in adults with renal colic and ureteral stones. We sought to evaluate if TA is reliable for diagnosing nephrolithiasis in the pediatric population. Read More

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Prestenting Versus Nonprestenting on the Outcomes of Flexible Ureteroscopy for Large Upper Urinary Stones: A Systematic Review and Meta-Analysis.

Urol Int 2021 Apr 15:1-8. Epub 2021 Apr 15.

Department of Urology, Second Hospital of Hebei Medical University, Shijiazhuang, China.

Introduction: The purpose of this article is to evaluate the efficacy and safety of prestenting (PS) versus non-PS (NPS) of flexible ureteroscopy (fURS) to treat large upper urinary stones.

Methods: We conducted a systematic literature research of PubMed, Ovid, Scopus (up to August 2019), and citation lists to identify eligible studies. All studies comparing PS versus NPS of fURS were included. Read More

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Comparison of antegrade and retrograde ureterolithotripsy for proximal ureteral stones: a systematic review and meta-analysis.

Transl Androl Urol 2021 Mar;10(3):1179-1191

Department of Nephro-urology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.

Background: Antegrade percutaneous ureterolithotripsy (URSL) could be a treatment option for large and/or impacted proximal ureteral stones, which are difficult to treat. To review the current approach and treatment outcomes and to compare the efficacy of retrograde and antegrade URSL for large proximal ureteral stones, we evaluated the unique perspectives of both surgical modalities.

Methods: This systematic literature review and meta-analysis was performed in July 2020. Read More

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Retrograde intrarenal surgery for renal stones in children <5 years of age.

Indian J Urol 2021 Jan-Mar;37(1):48-53. Epub 2021 Jan 1.

Department of Urology, Preeti Urology and Kidney Hospital, Hyderabad, Telangana, India.

Introduction: There are very few studies in the literature describing retrograde intrarenal surgery (RIRS) in preschool children. We have evaluated the feasibility, stone-free rate, and complications of RIRS in children <5 years of age.

Methods: All children <5 years of age and stone size <2 cm (renal/proximal ureteric), who underwent RIRS at our hospital from February 2010 to May 2020 were included in this retrospective study. Read More

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January 2021

Striking a balance: outcomes of short-term Mono-J placement following ureterorenoscopy.

Urolithiasis 2021 Apr 13. Epub 2021 Apr 13.

Department of Urology, Marien Hospital, Ruhr-University Bochum, Hölkeskampring 40, 44625, Herne, Germany.

To evaluate factors affecting the outcomes of short-term Mono-J insertion for 6 h following ureteroscopic stone removal. Patients treated with a Mono-J for 6 h after ureterorenoscopy and stone removal were analysed. FaST 1 and 2 (Fast Track Stent Studies), two consecutive single academic centre studies, were conducted between August 2014 and April 2018. Read More

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Ureteral Stones: Shockwave Lithotripsy or Ureteroscopy, Which is Best?

Eur Urol 2021 Apr 7. Epub 2021 Apr 7.

Department of Urology and Pediatric Urology, Krankenhaus der Barmherzigen Brüder Trier, Trier, Germany; Johannes Gutenberg University Mainz, Trier, Germany.

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Understanding ureteral access sheath use within a statewide collaborative and its effect on surgical and clinical outcomes.

J Endourol 2021 Apr 7. Epub 2021 Apr 7.

Beaumont Health, 7005, Department of Urology , Royal Oak, Michigan, United States;

Introduction: Ureteral access sheaths (UAS) are frequently used during ureteroscopy (URS), but their use is not without potential risk. We investigated patterns of UAS use and associated outcomes across practices in Michigan within a quality improvement collaborative.

Methods: The Michigan Urological Surgery Improvement Collaborative's (MUSIC) Reducing Operative Complications from Kidney Stones (ROCKS) initiative maintains a web-based prospective clinical registry of patients undergoing URS for urinary stone disease (USD). Read More

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The effect of ideal urine culture time on urinary infections after flexible ureteroscopy: A match-pair case-control study.

Int J Clin Pract 2021 Apr 5:e14212. Epub 2021 Apr 5.

Department of Urology, Istanbul Medeniyet University Goztepe Training and Research Hospital, Istanbul, Turkey.

Aims: To investigate the effect of the ideal period (Δ-day), which is a period between the sterile urine culture and initiation of flexible ureteroscopy (f-URS), on postoperative urinary tract infections (UTI) in our tertiary referral centre.

Methods: After obtaining the approval of the local ethics committee, retrospective data were collected for all f-URS procedures performed between January 2017 and March 2019. Patients that developed UTI were matched in 1:1 proportion with patients that did not develop UTI based on their demographic and stone characteristics. Read More

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SKOPE - Study of Ketorolac vs Opioid for Pain after Endoscopy: A Double-Blinded Randomized Control Trial in Patients Undergoing Ureteroscopy.

J Urol 2021 Apr 5:101097JU0000000000001772. Epub 2021 Apr 5.

Cleveland Clinic- Glickman Urological & Kidney Institute.

Purpose: Pain is the leading cause for unplanned emergency department visits and readmissions after ureteroscopy (URS), making post-operative analgesic stewardship a priority given the current opioid epidemic. We conducted a double-blinded, randomized controlled trial (RCT), with non-inferiority design, comparing nonsteroidal anti-inflammatory drugs (NSAIDs) to opiates for postoperative pain control in patients undergoing URS for urolithiasis.

Materials And Methods: Patients were randomized and blinded to either oxycodone (5mg) or ketorolac (10mg), taken as needed, with 3 non-blinded oxycodone rescue pills for breakthrough pain. Read More

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[Single use versus reusable flexible ureteroscopy for the treatment of urolithiasis: a comparative study of perioperative complications].

Urologiia 2021 Mar(1):66-69

Aix-Marseille University, APHM, Conception Academic Hospital, Dept. of Urology and Kidney Transplantation, Marseille, France.

Objective: To compare the perioperative complications of patients who underwent flexible ureteroscopy (fURS) for the treatment of urolithiasis according to the type of ureteroscope used, single-use (suURS) or reusable (rURS) flexible ureteroscope.

Patients And Methods: A retrospective and single-center study was conducted between January 2017 and May 2019, including all fURS performed for nephrolithiasis management. During the study period, 5rURS and 1suURS (UscopePU3022) were available. Read More

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Mysterious visitor in the bladder: Ureteral fibroepithelial polyp.

Arch Esp Urol 2021 Apr;74(3):359-362

Department of Urology. Mugla Sıtkı Kocman University. School of Medicine. Mugla. Turkey.

Objectives: We present a unique case with a ureteral fibroepithelial tumor originating from the ureter, which could be confused with a bladder tumor on ultrasound examination due to its movement in and out of the bladder. METHODS: In cystoscopy, a papillary tumor lesion emerging from the right ureteral orifice was seen. After scanning the other quadrants, however, the tumor was not observed at the right ureteral orifice. Read More

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Flexible ureteroscopy using a 120-w holmium laser: The low-energy/high-frequency approach.

Arch Esp Urol 2021 Apr;74(3):343-349

ASO S. Croce e Carle Cuneo. Cuneo. Italy.

Objectives: With the spread of more powerful lasers and the advent of new technologies, endoscopic interventions for urolithiasis are continuously evolving. The aim of this study is to present our experience and technique regarding Low Energy (LE)/High Frequency (HF) lithotripsy by using a 120-W Holmium laser (Lumenis®). METHODS: We retrospectively analysed our prospectively maintained Retrograde Intra Renal Surgery (RIRS) database. Read More

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Factors predicting duration and success of semirigid ureteroscopy for ureteral stones in different localizations.

Arch Esp Urol 2021 Apr;74(3):335-342

Department of Urology. Dr. Sadi Konuk Training and Research Hospital. Istanbul. Turkey.

Objective: In this study, we aimed to determine the factors predicting the duration and successof semirigid ureteroscopy performed for the treatment of ureteral stones in different localizations. MATERIALS AND METHODS: Medical records of the patients whom under went semirigid ureteroscopy for urolithiasis in our centre between January 2015 and December 2019 were retrospectively reviewed. The study group composed of 170 patients and divided into three subgroups; of which 54 in proximal ureter (31. Read More

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Comparison of the prone split-leg position (PSL) with the traditional prone position (TP) in percutaneous nephrolithotomy: a propensity score- matching study.

J Endourol 2021 Apr 3. Epub 2021 Apr 3.

Guangzhou Medical University, 26468, Department of Urology and Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China;

Background And Objective: Several positions have been described for percutaneous nephrolithotomy (PCNL). The aim of this study was to compare the safety and effectiveness of the traditional prone position PCNL (TP-PCNL) and the prone split-leg position (PSL).

Patients And Methods: A retrospective review was made of the data of 212 patients who underwent prone PCNL in PSL or TP position between January 2017 and November 2019. Read More

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Shockwave Lithotripsy Versus Ureteroscopic Treatment as Therapeutic Interventions for Stones of the Ureter (TISU): A Multicentre Randomised Controlled Non-inferiority Trial.

Eur Urol 2021 Mar 30. Epub 2021 Mar 30.

NHS Grampian, Department of Urology, Aberdeen Royal Infirmary, Aberdeen, UK.

Background: Renal stone disease is common and can cause emergency presentation with acute pain due to ureteric colic. International guidelines have stated the need for a multicentre randomised controlled trial (RCT) to determine whether a non-invasive outpatient (shockwave lithotripsy [SWL]) or surgical (ureteroscopy [URS]) intervention should be the first-line treatment for those needing active intervention. This has implications for shaping clinical pathways. Read More

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The Long-Term Follow-Up of Patients with Cystine Stones: A Single-Center Experience for 13 Years.

J Clin Med 2021 Mar 24;10(7). Epub 2021 Mar 24.

Department of Urology, Ijinkai Takeda General Hospital, 28-1 Moriminami-cho, Ishida Fushimi-ku, Kyoto 601-1495, Japan.

Introduction: Cystine stone development is relatively uncommon among patients with urolithiasis, and most studies have reported only on small sample sizes and short follow-up periods. We evaluated clinical courses and treatment outcomes of patients with cystine stones with long-term follow-up at our center.

Methods: We retrospectively analyzed 22 patients diagnosed with cystine stones between January 1989 and May 2019. Read More

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